JP6979376B2 - Vehicle operation detection device - Google Patents

Description

The present invention relates to a vehicle operation detection device.

Patent Document 1 describes a vehicle window sensor including a sensor electrode provided on the window glass of the vehicle and a capacitance detection circuit for detecting the capacitance between the sensor electrode and the vehicle body. The vehicle window sensor can automatically unlock and open the door when it detects that the user has approached the vehicle based on the change in capacitance. There is.

Japanese Unexamined Patent Publication No. 2006-213206

However, in the vehicle window sensor as described above, the capacitance may change even when the user leans against the window glass or the user passes by the side of the window glass. Therefore, a vehicle window sensor as described above may open the door when it is not in a situation where the door should be opened.

It should be noted that such a situation is not limited to the vehicle window sensor that operates the door when the user approaches the vehicle, but is generally common to the vehicle operation detection device that operates the opening / closing body of the vehicle by the user's operation. ing. An object of the present invention is to provide a vehicle operation detection device capable of suppressing the opening / closing operation of an opening / closing body due to an erroneous detection of a user's operation.

Hereinafter, means for solving the above problems and their actions and effects will be described.
The operation detection device for a vehicle that solves the above-mentioned problems is provided in a row, and the opening / closing body of the vehicle is opened / closed by a plurality of sensor electrodes whose capacitance increases as the detection target approaches and an actuator. The control unit and one or more of the plurality of sensor electrodes are used as authentication electrodes, and in the arrangement direction of the plurality of sensor electrodes, the direction corresponding to the opening direction of the opening / closing body is set as the first direction and the opening / closing is performed. The direction corresponding to the closing direction of the body is set as the second direction, and the first operation is detected when the sensor electrode whose capacitance changes among the plurality of sensor electrodes switches to the first direction, and the second direction is used. The control unit includes a detection unit that detects a second operation when switching to, and detects an authentication operation when the electrostatic capacitance of the authentication electrode changes in a predetermined manner, and the control unit has the first operation. And when both the operation of one of the second operations and the authentication operation are detected, the opening / closing body is operated in the direction corresponding to the one operation.

According to the above configuration, the vehicle operation detection device opens and closes the opening / closing body when the authentication operation is detected together with the first operation or the second operation. In other words, the vehicle operation detection device does not open / close the opening / closing body when the first operation or the second operation can be detected but the authentication operation cannot be detected. Therefore, the vehicle operation detection device can suppress the opening / closing operation of the opening / closing body due to erroneous detection of the user's operation.

In the vehicle operation detection device, the determination value for determining the approach of the detection target to the plurality of sensor electrodes is set as the first approach determination value, and the detection unit uses the capacitance of the authentication electrode as the determination time. It is preferable to detect the authentication operation when the value is equal to or higher than the first approach determination value.

According to the above configuration, the vehicle operation detection device may detect the first operation or the second operation when the user passes in front of the vehicle operation detection device, for example, but the determination time Depending on the setting of, it becomes difficult to detect the authentication operation. Therefore, the vehicle operation detection device can further suppress the opening / closing operation of the opening / closing body due to the erroneous detection of the user's operation.

In the vehicle operation detection device, a value obtained by multiplying the capacitance of the other sensor electrodes excluding the certification electrode by the weighting coefficient among the plurality of sensor electrodes is defined as the weighted capacitance, and the detection unit is the same. When the capacitance of the authentication electrode is equal to or greater than the first approach determination value over the determination time, and the capacitance of the authentication electrode is equal to or greater than the weighted capacitance over the determination time. In some cases, it is preferable to detect the authentication operation.

If the user does not bring his / her hand or the like exactly close to the authentication electrode, the user's hand or the like may approach not only the authentication electrode but also other sensor electrodes other than the authentication electrode, thereby causing the authentication electrode and other sensors. Both electrostatic capacities in the electrodes tend to increase. On the other hand, when the user accurately brings his / her hand or the like close to the authentication electrode, the user's hand or the like approaches only the authentication electrode, so that the capacitance of the authentication electrode is increased in the other sensor electrodes other than the authentication electrode. It is hard to increase compared to the electrostatic capacity.

According to the above configuration, in the vehicle operation detection device, the capacitance in the authentication electrode tends to be less than the weighted capacitance in the other sensor electrodes when the user does not bring his / her hand or the like exactly close to the authentication electrode. In that respect, it is difficult to detect the authentication operation. On the other hand, the vehicle operation detection device is certified in that the capacitance of the authentication electrode tends to be larger than the weighted capacitance of the other sensor electrodes when the user accurately brings his / her hand or the like close to the authentication electrode. Easy to detect operation. In this way, the vehicle operation detection device can detect the authentication operation when the user consciously performs the authentication operation.

In the vehicle operation detection device, the determination value for determining the approach of the detection target to the authentication electrode is set as the first approach determination value, and the detection unit has the capacitance of the plurality of sensor electrodes. When the sensor electrode having 1 approach determination value or more switches to the first direction, the first operation is detected, and when the sensor electrode switches to the second direction, the second operation is detected, and the electrostatic capacitance in the authentication electrode. Is more than or equal to the second approach determination value larger than the first approach determination value, it is preferable to detect the authentication operation.

According to the above configuration, the user needs to perform the authentication operation by bringing his / her hand or the like closer to the authentication electrode than when performing the first operation and the second operation. Therefore, the vehicle operation detection device detects the authentication operation even if the first operation or the second operation may be detected, for example, when the user passes in front of the vehicle operation detection device. It becomes difficult. Therefore, it is possible to further suppress the opening / closing operation of the opening / closing body due to erroneous detection of the user's operation.

In the vehicle operation detection device, the sensor electrode provided at the end of the plurality of sensor electrodes in the first direction is used as the first end electrode, and the end of the plurality of sensor electrodes in the second direction is used. The sensor electrode provided is used as a second end electrode, and in the detection unit, the sensor electrode whose capacitance changes among the plurality of sensor electrodes is in the first direction from the certification electrode including the second end electrode. The first operation is detected when switching to, the second operation is detected when switching in the second direction from the authentication electrode including the first end electrode, and the control unit is the second end. After detecting the certification operation for the certification electrode including the electrode, the opening / closing body was opened when the first operation was detected, and the certification operation for the certification electrode including the first end electrode was detected. Later, when the second operation is detected, it is preferable to close the opening / closing body.

According to the above configuration, the user can open and close the opening / closing body by performing the authentication operation and the first operation or the second operation in succession. Further, since the sensor electrode that is the starting point of the first operation and the second operation is an authentication electrode, the vehicle operation detection device can suppress the deterioration of the user's operability.

In the vehicle operation detection device, the sensor electrode provided at the end of the plurality of sensor electrodes in the first direction is used as the first end electrode, and the end of the plurality of sensor electrodes in the second direction is used. The sensor electrode provided is used as a second end electrode, and the detection unit detects the first operation when the sensor electrode whose capacitance changes is switched from the second end electrode to the first direction. The second operation is detected when the first end electrode is switched to the second direction, and after the control unit detects the authentication operation for the authentication electrode, the electrostatic capacitance in the authentication electrode is the first. When the first operation is detected after the value becomes less than one approach determination value, the opening / closing body is opened and the authentication operation for the authentication electrode is detected, and then the capacitance of the authentication electrode is the first. When the second operation is detected after the value becomes less than the approach determination value, it is preferable to close the opening / closing body.

According to the above configuration, in order to open and close the opening / closing body, the vehicle operation detection device has a capacitance in the authentication electrode between the detection of the authentication operation and the detection of the first operation or the second operation. Is less than the first approach determination value, that is, it is necessary that the user's hand or the like is separated from the authentication electrode. Therefore, the vehicle operation detection device can suppress the opening / closing operation of the opening / closing body based on the operation not intended by the user, while suppressing the deterioration of the operability of the user.

In the vehicle operation detection device, the sensor electrode provided at the end of the plurality of sensor electrodes in the first direction is used as the first end electrode, and the end of the plurality of sensor electrodes in the second direction is used. The sensor electrode provided is used as a second end electrode, and the detection unit detects the first operation when the sensor electrode whose capacitance changes is switched from the second end electrode to the first direction. The second operation is detected when the first end electrode is switched to the second direction, and the control unit performs the authentication operation for the authentication electrode including two or more sensor electrodes including the second end electrode. When the first operation is detected after the electrostatic capacitance of the sensor electrodes excluding the second end electrode of the certified electrodes becomes less than the first approach determination value, the opening / closing body is detected. Is opened to detect the authentication operation for the authentication electrode including two or more sensor electrodes including the first end electrode, and then static in the sensor electrode of the authentication electrode excluding the first end electrode. When the second operation is detected after the electric capacity becomes less than the first approach determination value, it is preferable to close the opening / closing body.

According to the above configuration, when the user wants to open / close the opening / closing body, one hand or the like is brought close to the second end electrode or the first end electrode of the authentication electrode, and the second of the authentication electrodes is used. The authentication operation is performed by bringing the other hand or the like close to the end electrode or the sensor electrode other than the first end electrode. Subsequently, the user moves the other hand or the like in the first direction or the second direction after releasing the other hand or the like from the sensor electrodes other than the second end electrode or the first end electrode among the authentication electrodes. By doing so, the first operation or the second operation is performed.

In this way, the vehicle operation detection device can suppress the deterioration of the user's operability in that the user can easily perform the authentication operation and the first operation or the second operation continuously. Further, the vehicle operation detection device can suppress the opening / closing operation of the opening / closing body based on the operation not intended by the user in that the user is required to perform the authentication operation using both hands or the like.

The vehicle operation detection device can suppress the opening / closing operation of the opening / closing body due to erroneous detection of the user's operation.

The schematic diagram of the vehicle provided with the operation detection device for a vehicle which concerns on 1st Embodiment. The cross-sectional view which shows the schematic structure of the vehicle door in 1st Embodiment. The schematic diagram which shows the schematic structure of the operation detection device for a vehicle in 1st Embodiment. In the first embodiment, a flowchart illustrating a flow of processing executed by a control circuit for opening and closing a vehicle door. In the first embodiment, (a) is a schematic diagram showing a user's authentication operation and the first operation, and (b) is a timing chart showing how the capacitance in the sensor electrode changes with the user's operation. In the second embodiment, (a) is a schematic diagram showing a user's authentication operation and the first operation, and (b) is a timing chart showing how the capacitance in the sensor electrode changes with the user's operation. In the third embodiment, (a) and (b) are schematic diagrams showing the user's authentication operation and the first operation, and (c) shows how the capacitance in the sensor electrode changes with the user's operation. Timing chart to show. In the fourth embodiment, (a) and (b) are schematic diagrams showing the user's authentication operation and the first operation, and (c) shows how the capacitance in the sensor electrode changes with the user's operation. Timing chart to show. In the fifth embodiment, (a) and (b) are schematic diagrams showing the user's authentication operation and the first operation, and (c) shows how the capacitance in the sensor electrode changes with the user's operation. Timing chart to show. In the sixth embodiment, (a) and (b) are schematic diagrams showing the user's authentication operation and the first operation, and (c) shows how the capacitance in the sensor electrode changes with the user's operation. Timing chart to show. In the seventh embodiment, (a) and (b) are schematic diagrams showing the user's authentication operation and the first operation, and (c) shows how the capacitance in the sensor electrode changes with the user's operation. Timing chart to show. In the eighth embodiment, (a) and (b) are schematic diagrams showing the user's authentication operation and the first operation, and (c) shows how the capacitance in the sensor electrode changes with the user's operation. Timing chart to show. A flowchart illustrating a flow of processing executed by a control circuit according to a modification example for opening and closing a vehicle door.

(First Embodiment)
Hereinafter, the first embodiment of the vehicle operation detection device (hereinafter, also referred to as “detection device”) will be described with reference to the drawings.

As shown in FIG. 1, an opening 2a is formed in a side portion of a body 2 of a vehicle 1 such as an automobile. Further, as an example of the "opening / closing body", a sliding vehicle door 3 that opens / closes the opening 2a as the vehicle moves in the front-rear direction is mounted on the side portion of the body 2. The vehicle door 3 has a substantially bag-shaped door body 4 constituting the lower portion thereof, and also has a window glass 5 that moves forward and backward from the door body 4. A door lock 6 for locking and unlocking the closed vehicle door 3 is installed in the door body 4.

A door drive unit 11 is installed in the vehicle door 3, for example, in the door body 4. The door drive unit 11 is mainly composed of an electric drive source such as an electric motor, and is mechanically linked to the body 2 via a door drive mechanism (not shown) to open and close the vehicle door 3. .. In this embodiment, the door drive unit 11 corresponds to an example of an "actuator" that opens and closes the vehicle door 3.

Further, on the vehicle door 3, for example, a door lock drive unit 12 is installed adjacent to the door lock 6. The door lock drive unit 12 is mainly composed of an electric drive source such as an electric motor, and the door lock 6 is mechanically linked to the door lock 6 via an appropriate lock drive mechanism. Locking and unlocking drive.

Both the door drive unit 11 and the door lock drive unit 12 are electrically connected to a door ECU 10 including a microcomputer or the like, and are individually driven and controlled by the door ECU 10. The door ECU 10 drives the door drive unit 11 to open the vehicle door 3 in the first direction D1 when an open operation command signal is input from the electronic key (portable device) and the detection device 30 described later. On the other hand, the door ECU 10 drives the door drive unit 11 to close the vehicle door 3 in the second direction D2 when the closing operation command signal is input from the electronic key and the detection device 30.

As shown in FIG. 2, the door body 4 is formed into a substantially bag shape by fitting, for example, the open ends of a substantially dish-shaped door outer panel 21 and a door inner panel 22 made of a metal plate. A door trim 23 that forms the interior design of the vehicle 1 is attached to the door inner panel 22. A detection device 30 for detecting an operation from the outside of the vehicle by the user is arranged on the upper part of the door trim 23.

Next, the detection device 30 will be described with reference to FIG.
As shown in FIG. 3, the detection device 30 includes a first sensor electrode 31, a second sensor electrode 32, and a third sensor electrode 33 arranged at intervals in the opening / closing direction of the vehicle door 3. Further, the detection device 30 includes a detection circuit 34 connected to the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33, and a control circuit 35 that outputs a control signal to the door ECU 10. Further, the detection device 30 includes a substrate 36 on which the first sensor electrode 31, the second sensor electrode 32, the third sensor electrode 33, the detection circuit 34, and the control circuit 35 are mounted, and a casing that houses the constituent members of the detection device 30. It comprises a body 37.

As shown in FIGS. 1 and 3, the detection device 30 (housing 37) has a long shape. The length of the housing 37 in the longitudinal direction is shorter than the length of the window glass 5 of the vehicle door 3 in the front-rear direction.

As shown in FIGS. 1 and 3, the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33 have a substantially rectangular plate shape, and have the same area orthogonal to the plate thickness direction. The first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33 are arranged linearly in the front-rear direction of the vehicle so as to form a row. Specifically, the first sensor electrode 31 is located most in front of the vehicle, the third sensor electrode 33 is located most in the rear of the vehicle, and the second sensor electrode 32 is located between the first sensor electrode 31 and the third sensor electrode 33. positioned. Further, it is preferable that each of the sensor electrodes 31, 32, 33 has a length in the front-rear direction of the vehicle according to the user's hand (for example, 10 cm to 20 cm).

In the following description, the direction from the first sensor electrode 31 to the third sensor electrode 33 is referred to as "first direction D1", and the direction from the third sensor electrode 33 to the first sensor electrode 31 is referred to as "second direction D2". do. Of the arrangement directions of the plurality of sensor electrodes, the first direction D1 is the direction (same direction) corresponding to the opening direction of the vehicle door 3, and the second direction D2 is the direction corresponding to the closing direction of the vehicle door 3 (the same direction). In the same direction). In the plurality of sensor electrodes, the first sensor electrode 31 is located at the end in the second direction D2, and the third sensor electrode 33 is located at the end in the first direction D1. In this respect, in the present embodiment, the first sensor electrode 31 corresponds to the “second end electrode”, and the third sensor electrode 33 corresponds to the “first end electrode”.

The first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33 form a pseudo capacitor together with the detection target close to the respective sensor electrodes 31, 32, 33. Therefore, the capacitance of the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33 is determined by the positional relationship with the detection target as the detection target approaches the respective sensor electrodes 31, 32, 33. Becomes larger. The detection range of each of the sensor electrodes 31, 32, 33 extends to the outside of the vehicle so that the capacitance of the sensor electrodes 31, 32, 33 increases when the detection target approaches from the outside of the vehicle.

In the following description, the capacitance determined by the positional relationship between the sensor electrode and the detection target is also simply referred to as "capacitance in the sensor electrode". Further, the capacitance in the first sensor electrode 31 is also referred to as "first capacitance C1", the capacitance in the second sensor electrode 32 is also referred to as "second capacitance C2", and the third sensor electrode 33 has. The capacitance is also referred to as "third capacitance C3". Further, when any sensor electrode among the respective sensor electrodes 31, 32, 33 is described, the reference numeral is omitted.

In the present embodiment, the detection device 30 is set with the "approach determination value Cth (first approach determination value)" for determining that the detection target has approached the sensor electrode. Therefore, in the detection device 30, the case where the electrostatic capacitance at the sensor electrode is equal to or greater than the approach determination value Cth is assumed to be the case where the detection target is close to the sensor electrode, and the electrostatic capacitance at the sensor electrode is less than the approach determination value Cth. This is the case where the detection target is not close to the sensor electrode. The approach determination value Cth may be appropriately set according to the detection sensitivity of the detection device 30. For example, the approach determination value Cth may be the capacitance in the sensor electrode when the distance between the sensor electrode and the detection target becomes a predetermined distance.

The detection circuit 34 outputs an oscillation signal to the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33, thereby statically in the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33. A signal corresponding to the electric capacity is output. Then, the detection circuit 34 outputs to the control circuit 35 a signal obtained by A / D (analog / digital) conversion of the signals output from the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33, respectively.

The control circuit 35 executes various arithmetic processes based on the signal output from the detection circuit 34, and outputs a control signal according to the result to the door ECU 10. Specifically, the control circuit 35 is a vehicle door when the capacitance of the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33 changes so as to satisfy a specific condition by the operation of the user. An open operation command signal for opening the operation 3 or a closing operation command signal for closing the vehicle door 3 is output to the door ECU 10. In this respect, in the present embodiment, the control circuit 35 corresponds to an example of a "control unit" that opens and closes the vehicle door 3.

The control circuit 35 outputs an open operation command signal to the door ECU 10 on condition that the sensor electrode whose capacitance changes is switched to the first direction D1 (open direction) among the plurality of sensor electrodes. Specifically, one of the conditions of the control circuit 35 is that the sensor electrode whose capacitance is equal to or higher than the approach determination value Cth is switched in the order of the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33. An open operation command signal is output to the door ECU 10.

On the other hand, the control circuit 35 outputs a closing operation command signal to the door ECU 10 on condition that the sensor electrode whose capacitance changes is switched to the second direction D2 (closed direction) among the plurality of sensor electrodes. do. Specifically, one of the conditions of the control circuit 35 is that the sensor electrode whose capacitance is equal to or higher than the approach determination value Cth is switched in the order of the third sensor electrode 33, the second sensor electrode 32, and the first sensor electrode 31. A closing operation command signal is output to the door ECU 10.

In the following description, the operation for opening the vehicle door 3 and switching the sensor electrode that the user brings his / her hand or the like to the first direction D1 among the plurality of sensor electrodes is the “first operation”. And. On the other hand, an operation for closing the vehicle door 3 and switching the sensor electrode to which the user approaches the hand or the like to the second direction D2 among the plurality of sensor electrodes is referred to as a "second operation". In order to open and close the vehicle door 3, the user may bring a part of the body except the hand close to the sensor electrode, or bring his / her belongings close to the sensor electrode.

By the way, in the control circuit of the comparative example that outputs the open operation command signal or the close operation command signal to the door ECU 10 only by detecting the first operation or the second operation, the following problems may occur. That is, the control circuit of the comparative example erroneously detects the first operation or the second operation when a user or the like passes by the side of the vehicle door 3, and sends an open operation command signal or a closed operation command signal to the door ECU 10. There is a risk of output.

Therefore, in the present embodiment, when the control circuit 35 detects the first operation or the second operation in addition to the authentication operation for causing the detection device 30 to recognize that the user is intentionally performing the operation. , An open operation command signal or a close operation command signal is output to the door ECU 10. Specifically, the control circuit 35 outputs an open operation command signal when the first operation is detected after the authentication operation is detected, and outputs a close operation command signal when the second operation is detected after the authentication operation is detected. do.

The authentication operation is an operation of changing the capacitance of the authentication electrode including one or more of the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33 in a predetermined manner. Specifically, the authentication operation is an operation in which the user keeps his / her hand close to the authentication electrode for a while, that is, an operation in which the user holds his / her hand over the authentication electrode.

Therefore, the control circuit 35 detects the authentication operation when the capacitance of the authentication electrode becomes equal to or greater than the approach determination value Cth over the determination time Tth. The determination time Tth may be set in consideration of the convenience of the user who performs the authentication operation, and may be set to about 0.5 seconds as an example.

Further, the control circuit 35 compares the capacitance of the authentication electrode with the capacitance of the other electrodes other than the authentication electrode in order to determine whether or not the user is performing the authentication operation accurately. Specifically, in the control circuit 35, the capacitance at the authentication electrode is less than the value obtained by multiplying the capacitance at the other electrodes by a weighting coefficient of 1 or more (hereinafter, also referred to as “weighted capacitance”). If so, no authentication operation is detected.

That is, when the user's body approaches the authentication electrode and other electrodes other than the authentication electrode, such as when the user leans against the vehicle door 3, the capacitance of both the authentication electrode and the other electrode increases. .. In such a case, the capacitance at the authentication electrode becomes less than the weighted capacitance at the other electrodes, and the control circuit 35 does not detect the authentication operation.

Further, in the present embodiment, the authentication electrode in the authentication operation paired with the first operation is the first sensor electrode 31 (second end electrode), and the authentication electrode in the authentication operation paired with the second operation is the third. It is a sensor electrode 33 (first end electrode). Therefore, in the control circuit 35, after the first capacitance C1 becomes the approach determination value Cth or more over the determination time Tth, the second capacitance C2 and the third capacitance C3 sequentially exceed the approach determination value Cth. When becomes, the authentication operation and the first operation are detected. Further, in the control circuit 35, after the third capacitance C3 becomes the approach determination value Cth or more over the determination time Tth, the second capacitance C2 and the first capacitance C1 sequentially exceed the approach determination value Cth. When becomes, the authentication operation and the second operation are detected. Thus, in the present embodiment, the sensor electrode that is the starting point of the first operation and the second operation is used as the authentication electrode.

As described above, in the present embodiment, the detection device 30 detects the authentication operation, the first operation, and the second operation based on the change mode of the capacitance in the plurality of sensor electrodes 31, 32, 33. It can be said that the detection device 30 has a detection unit 41. Further, it can be said that the detection device has the control unit 42 in that the detection device 30 outputs a signal for operating the vehicle door 3 based on the detection result of the detection unit 41.

Next, with reference to the flowchart shown in FIG. 4, a flow of processing executed by the control circuit 35 for opening and closing the vehicle door 3 will be described.
As shown in FIG. 4, the control circuit 35 determines whether or not the first capacitance C1 is equal to or greater than the approach determination value Cth (step S11). When the first capacitance C1 is equal to or greater than the approach determination value Cth (step S11: YES), that is, when the user's hand is close to the first sensor electrode 31 (second end electrode), the control circuit 35 Determines whether or not the first capacitance C1 is equal to or greater than the values of both the second weighted capacitance C2'and the third weighted capacitance C3'(step S12).

Here, the second weighted capacitance C2'is a value obtained by multiplying the second capacitance C2 by the weighting coefficient, and the third weighted capacitance C3'is the third capacitance C3 multiplied by the weighting coefficient. It is a value multiplied by. The weighting coefficient to be multiplied by the third capacitance C3 may be equal to or larger than the weighting coefficient to be multiplied by the second capacitance C2. When the user brings his / her hand closer to the first sensor electrode 31, the third sensor electrode 33 is farther from the first sensor electrode 31 than the second sensor electrode 32, and the third capacitance C3 Is likely to be smaller than the second capacitance C2. Therefore, if the weighting coefficient to be multiplied by the third capacitance C3 is made larger than the weighting coefficient to be multiplied by the second capacitance C2, is the control circuit 35 performing an authentication operation on the first sensor electrode 31? Whether or not it can be determined more accurately.

When the first capacitance C1 is less than at least one of the second weighted capacitance C2'and the third weighted capacitance C3'(step S12: NO), the control circuit 35 ends this process. do. On the other hand, when the first capacitance C1 is equal to or greater than the values of both the second weighted capacitance C2'and the third weighted capacitance C3'(step S12: YES), the control circuit 35 performs this process. The elapsed time Te from the first positive determination of step S12 after the start is acquired (step S13). Subsequently, the control circuit 35 determines whether or not the elapsed time Te is equal to or longer than the determination time Tth (step S14). When the elapsed time Te is less than the determination time Tth (step S14: NO), the control circuit 35 shifts the process to the previous step S11.

When the elapsed time Te is equal to or longer than the determination time Tth (step S14: YES), the control circuit 35 determines whether or not the second capacitance C2 is equal to or greater than the approach determination value Cth (step S15). When the second capacitance C2 is less than the approach determination value Cth (step S15: NO), that is, when the user's hand is not close to the second sensor electrode 32, the control circuit 35 executes step S15 again. do. On the other hand, when the second capacitance C2 is equal to or greater than the approach determination value Cth (step S15: YES), that is, when the user's hand is close to the second sensor electrode 32, the control circuit 35 uses the third static electricity. It is determined whether or not the capacitance C3 is equal to or greater than the approach determination value Cth (step S16).

When the third capacitance C3 is less than the approach determination value Cth (step S16: NO), that is, when the user's hand is not close to the third sensor electrode 33 (first end electrode), the control circuit 35 Will execute step S16 again. On the other hand, when the third capacitance C3 is equal to or greater than the approach determination value Cth (step S16: YES), that is, when the user's hand is close to the third sensor electrode 33, the control circuit 35 is instructed to open. The signal is output to the door ECU 10 (step S17). After that, the control circuit 35 ends this process.

In the previous step S11, when the first capacitance C1 is less than the approach determination value Cth (step S11: NO), that is, when the user's hand is not close to the first sensor electrode 31, the control circuit 35 , It is determined whether or not the third capacitance C3 is equal to or greater than the approach determination value Cth (step S18). When the third capacitance C3 is less than the approach determination value Cth (step S18: NO), that is, when the user's hand is not close to the third sensor electrode 33, the control circuit 35 ends this process. .. On the other hand, when the third capacitance C3 is equal to or greater than the approach determination value Cth (step S18: YES), that is, when the user's hand is close to the third sensor electrode 33 (first end electrode), control is performed. The circuit 35 determines whether or not the third capacitance C3 is equal to or greater than the values of both the first weighted capacitance C1'and the second weighted capacitance C2'(step S19). Here, the first weighted capacitance C1'is a value obtained by multiplying the first capacitance C1 by the weighting coefficient, and the second weighted capacitance C2'is the second capacitance C2 multiplied by the weighting coefficient. It is a value multiplied by. The magnitude of the weighting factor is as described above.

When the third capacitance C3 is less than at least one of the first weighted capacitance C1'and the second weighted capacitance C2'(step S19: NO), the control circuit 35 ends this process. do. On the other hand, when the third capacitance C3 is equal to or greater than the values of both the first weighted capacitance C1'and the second weighted capacitance C2'(step S19: YES), the control circuit 35 performs this process. The elapsed time Te from the first positive determination of step S19 after the start is acquired (step S20). Subsequently, the control circuit 35 determines whether or not the elapsed time Te is equal to or longer than the determination time Tth (step S21). When the elapsed time Te is less than the determination time Tth (step S21: NO), the control circuit 35 shifts the process to the previous step S18.

When the elapsed time Te is equal to or longer than the determination time Tth (step S21: YES), the control circuit 35 determines whether or not the second capacitance C2 is equal to or greater than the approach determination value Cth (step S22). When the second capacitance C2 is less than the approach determination value Cth (step S22: NO), that is, when the user's hand is not close to the second sensor electrode 32, the control circuit 35 executes step S22 again. do. On the other hand, when the second capacitance C2 is equal to or greater than the approach determination value Cth (step S22: YES), that is, when the user's hand is close to the second sensor electrode 32, the control circuit 35 is the first static electricity. It is determined whether or not the capacitance C1 is equal to or greater than the approach determination value Cth (step S23).

When the first capacitance C1 is less than the approach determination value Cth (step S23: NO), that is, when the user's hand is not close to the first sensor electrode 31 (second end electrode), the control circuit 35 Will execute step S23 again. On the other hand, when the first capacitance C1 is equal to or greater than the approach determination value Cth (step S23: YES), that is, when the user's hand is close to the first sensor electrode 31, the control circuit 35 is instructed to open. The signal is output to the door ECU 10 (step S24). After that, the control circuit 35 ends this process.

The operation of the first embodiment will be described. In the following description, a case where the user operates the detection device 30 in order to open and operate the stopped vehicle door 3 will be described.
As shown in FIG. 5A, in the first embodiment, the user performs an authentication operation by keeping his / her hand close to the first sensor electrode 31 (authentication electrode). Subsequently, the user performs the first operation by moving the hand brought close to the first sensor electrode 31 in the first direction D1. The white arrow shown in FIG. 5A indicates the movement of the user's hand moving in the first direction D1.

As shown in FIG. 5B, when the user brings his / her hand close to the first sensor electrode 31 in order to perform the authentication operation, the first capacitance C1 starts to increase at the first timing t11. Then, at the second timing t12 in which the user's hand approaches the first sensor electrode 31 rather than the first timing t11, the first capacitance C1 becomes equal to or higher than the approach determination value Cth. Subsequently, at the third timing t13 in which the distance between the user's hand and the first sensor electrode 31 is maintained constant, the first capacitance C1 remains unchanged at the approach determination value Cth or higher. Then, at the fourth timing t14, the elapsed time Te from the second timing t12 becomes the determination time Tth.

In the period from the first timing t11 to the fourth timing t14, the user's hand approaches the first sensor electrode 31, but does not substantially approach the second sensor electrode 32 and the third sensor electrode 33. Therefore, the second capacitance C2 and the third capacitance C3 are smaller than the first capacitance C1. Similarly, in the period from the first timing t11 to the fourth timing t14, the second weighted capacitance C2', which is a value obtained by multiplying the second capacitance C2 and the third capacitance C3 by the weight coefficient, is used. And the third weighted capacitance C3'is smaller than the first capacitance C1.

Then, when the user moves his / her hand in the first direction D1 in order to perform the first operation, the user's hand starts to move away from the center of the first sensor electrode 31 after the fifth timing t15. It begins to approach the center of the second sensor electrode 32. Subsequently, the second capacitance C2 becomes equal to or higher than the approach determination value Cth at the sixth timing t16 in which the user's hand approaches the central portion of the second sensor electrode 32 rather than the fifth timing t15.

Then, after the seventh timing t17, the user's hand begins to move away from the center of the second sensor electrode 32 while approaching the center of the third sensor electrode 33. Subsequently, the third capacitance C3 becomes equal to or higher than the approach determination value Cth at the eighth timing t18 when the user's hand approaches the third sensor electrode 33 rather than the seventh timing t17.

In this way, the detection device 30 detects the authentication operation at the fourth timing t14 and detects the first operation at the eighth timing t18. As a result, the vehicle door 3 is opened after the eighth timing t18.

The effect of the first embodiment will be described.
(1) The detection device 30 opens and closes the vehicle door 3 when the authentication operation is detected together with the first operation or the second operation. In other words, the detection device 30 does not open / close the vehicle door 3 when the first operation or the second operation can be detected but the authentication operation cannot be detected. Therefore, the detection device 30 opens and closes the vehicle door 3 by erroneous detection of the user's operation, as compared with the detection device that opens and closes the vehicle door 3 only by detecting the first operation or the second operation. Can be suppressed.

(2) The detection device 30 detects the authentication operation when the capacitance of the authentication electrode becomes equal to or greater than the approach determination value Cth over the determination time Tth. Therefore, for example, when the user passes in front of the detection device 30, the detection device 30 may detect the first operation or the second operation, but it is difficult to detect the authentication operation. Therefore, the detection device 30 can further suppress the opening / closing operation of the vehicle door 3 due to an erroneous detection of the user's operation.

(3) If the user does not accurately approach the authentication electrode, the user's hand approaches the authentication electrode and other sensor electrodes other than the authentication electrode, and the electrostatic capacitance in the authentication electrode and other sensor electrodes. Both tend to grow. On the other hand, when the user approaches the authentication operation accurately, the user's hand approaches only the authentication electrode, and the capacitance in the authentication electrode becomes the capacitance in the other sensor electrodes other than the authentication electrode. It is hard to grow in comparison.

According to the first embodiment, the detection device 30 tends to have a capacitance in the authentication electrode less than the weighted capacitance in the other sensor electrodes when the user does not touch the authentication electrode accurately. Therefore, it is difficult to detect the authentication operation. On the other hand, the detection device 30 detects the authentication operation in that the capacitance at the authentication electrode tends to be larger than the weighted capacitance at the other sensor electrodes when the user accurately brings his / her hand close to the authentication electrode. It's easy to do. In this way, the detection device 30 can detect the authentication operation when the user performs the authentication operation accurately (consciously).

(4) The user can open and close the vehicle door 3 by continuously performing the authentication operation and the first operation or the second operation. Further, since the sensor electrode that is the starting point of the first operation and the second operation is an authentication electrode, the user changes the sensor electrode to approach the hand in order to perform the first operation or the second operation after the authentication operation. You don't have to. In this way, the detection device 30 can suppress the deterioration of the operability of the user.

(Second Embodiment)
Next, a second embodiment of the detection device will be described with reference to FIG.
When the detection device 302 in the second embodiment is compared with the detection device 30 in the first embodiment, the authentication operation, the first operation, and the second operation in the control circuit 352 are different in the detection mode. Therefore, in the following description, the configuration different from the first embodiment will be described, and the description of the configuration overlapping with the first embodiment will be omitted.

In the second embodiment, the authentication electrodes are all the electrodes of the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33. Therefore, the detection device 302 detects the authentication operation when the first capacitance C1, the second capacitance C2, and the third capacitance C3 become the approach determination value Cth over the determination time Tth.

Further, in the second embodiment, the detection device 302 is used when the sensor electrodes whose capacitance is less than the approach determination value Cth are switched in the order of the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33. Detect the first operation. On the other hand, the detection device 302 detects the second operation when the sensor electrode whose capacitance is less than the approach determination value Cth is switched in the order of the third sensor electrode 33, the second sensor electrode 32, and the first sensor electrode 31. ..

Therefore, in the detection device 302, after the first capacitance C1, the second capacitance C2, and the third capacitance C3 become the approach determination value Cth or more over the determination time Tth, the capacitance is determined to approach. When the sensor electrode having a value less than Cth is switched in the order of the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33, an open operation command signal is output to the door ECU 10.

Further, in the detection device 302, the capacitance approaches after the first capacitance C1, the second capacitance C2, and the third capacitance C3 become equal to or higher than the approach determination value Cth over the determination time Tth. When the sensor electrode having a determination value less than Cth is switched in the order of the third sensor electrode 33, the second sensor electrode 32, and the first sensor electrode 31, a closing operation command signal is output to the door ECU 10.

The operation of the second embodiment will be described.
As shown in FIG. 6A, in the second embodiment, the user performs the authentication operation by keeping the hands and arms close to all the electrodes (authentication electrodes). Subsequently, the user performs the first operation by moving the hands and arms close to all the electrodes in the first direction D1.

As shown in FIG. 6B, when the user brings his / her hand and arm close to the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33 in order to perform the authentication operation, the first timing is obtained. At t21, the first capacitance C1, the second capacitance C2, and the third capacitance C3 begin to increase. Then, at the second timing t22 in which the user's hand and arm are closer to all the electrodes than the first timing t21, the first capacitance C1, the second capacitance C2, and the third capacitance are obtained. The capacitance C3 becomes equal to or larger than the approach determination value Cth.

Subsequently, at the third timing t23 in which the distance between the user's hand and arm and the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33 is maintained constant, the first capacitance C1 , The second capacitance C2 and the third capacitance C3 remain unchanged at the approach determination value Cth or higher. After that, at the fourth timing t24, the elapsed time Te from the second timing t22 becomes the determination time Tth.

Then, when the user moves his / her hand and arm in the first direction D1 in order to perform the first operation, the user's hand begins to move away from the center of the first sensor electrode 31 at the fifth timing t25. At the sixth timing t26, the first capacitance C1 becomes less than the approach determination value Cth. Subsequently, at the seventh timing t27, the user's hand begins to move away from the central portion of the second sensor electrode 32, and at the eighth timing t28, the second capacitance C2 becomes less than the approach determination value Cth. After that, at the ninth timing t29, the user's hand begins to move away from the central portion of the third sensor electrode 33, and at the tenth timing t30, the third capacitance C3 becomes less than the approach determination value Cth.

In this way, the detection device 302 detects the authentication operation at the fourth timing t24 and detects the first operation at the tenth timing t30. As a result, the vehicle door 3 is opened after the tenth timing t30.

According to the second embodiment, the same effect as that of the first embodiment can be obtained.
(Third Embodiment)
Next, a third embodiment of the detection device will be described with reference to FIG. 7.

When the detection device 303 in the third embodiment is compared with the detection device 30 in the first embodiment, the detection modes of the authentication operation, the first operation, and the second operation in the control circuit 353 are different. Therefore, in the following description, the configuration different from the first embodiment will be described, and the description of the configuration overlapping with the first embodiment will be omitted.

In the third embodiment, the authentication electrode is the second sensor electrode 32. That is, the detection device 303 detects the authentication operation when the second capacitance C2 becomes equal to or greater than the approach determination value Cth over the determination time Tth.

Further, the detection device 303 detects the first operation when the sensor electrode whose capacitance is equal to or higher than the approach determination value Cth is switched in the order of the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33. .. In other words, the detection device 303 detects the first operation when the sensor electrode whose capacitance is equal to or higher than the approach determination value Cth is sequentially switched from the second end electrode (first sensor electrode 31) to the first direction D1. do.

On the other hand, the detection device 303 detects the second operation when the sensor electrode whose capacitance is equal to or higher than the approach determination value Cth is switched in the order of the third sensor electrode 33, the second sensor electrode 32, and the first sensor electrode 31. .. In other words, the detection device 303 detects the second operation when the sensor electrode whose capacitance is equal to or higher than the approach determination value Cth is sequentially switched from the first end electrode (third sensor electrode 33) to the second direction D2. do.

Further, the detection device 303 requires that the authentication operation and the first operation or the second operation be performed separately as a condition for outputting the open operation command signal or the closed operation command signal. Specifically, in the detection device 303, the capacitance (second capacitance C2) in the second sensor electrode 32 as the authentication electrode is less than the approach determination value Cth between the authentication operation and the first operation or the second operation. It is necessary to become.

Therefore, the detection device 303 needs to satisfy the following three conditions in order as the conditions for outputting the open operation command signal to the door ECU 10. First, the second capacitance C2 is equal to or greater than the approach determination value Cth over the determination time Tth. Second, the second capacitance C2 is less than the approach determination value Cth. Third, the sensor electrodes whose capacitance is equal to or higher than the approach determination value Cth are switched in the order of the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33.

Further, the detection device 303 needs to satisfy the following three conditions in order as a condition for outputting the closing operation command signal to the door ECU 10. First, the second capacitance C2 is equal to or greater than the approach determination value Cth over the determination time Tth. Second, the second capacitance C2 is less than the approach determination value Cth. Third, the sensor electrodes whose capacitance is equal to or higher than the approach determination value Cth are switched in the order of the third sensor electrode 33, the second sensor electrode 32, and the first sensor electrode 31.

The operation of the third embodiment will be described.
As shown in FIG. 7A, in the third embodiment, the user performs the authentication operation by keeping his / her hand close to the second sensor electrode 32 (authentication electrode). Subsequently, as shown in FIGS. 7A and 7B, the user moves his / her hand away from the second sensor electrode 32 to the first sensor electrode 31 and then moves it in the first direction D1. Then, the first operation is performed. The white arrow shown in FIG. 7A indicates the movement of the user's hand to move away from the authentication electrode after approaching the authentication electrode.

As shown in FIG. 7C, when the user brings his / her hand close to the second sensor electrode 32 in order to perform the authentication operation, the second capacitance C2 starts to increase at the first timing t31. Then, at the second timing t32 in which the user's hand approaches the second sensor electrode 32 rather than the first timing t31, the second capacitance C2 becomes equal to or higher than the approach determination value Cth.

Subsequently, at the third timing t33 in which the distance between the user's hand and the second sensor electrode 32 is maintained constant, the second capacitance C2 remains unchanged at the approach determination value Cth or higher. After that, at the fourth timing t34, the elapsed time Te from the second timing t32 becomes the determination time Tth.

Then, when the user releases his / her hand from the second sensor electrode 32, the second capacitance C2 starts to decrease from the fifth timing t35. Then, at the sixth timing t36 where the user's hand is separated from the second sensor electrode 32 than the fifth timing t35, the second capacitance C2 becomes less than the approach determination value Cth.

Then, when the user moves the hand close to the first sensor electrode 31 in the first direction D1 in order to perform the first operation, the first capacitance C1 is the approach determination value at the seventh timing t37. It becomes Cth or more. After that, at the eighth timing t38, the second capacitance C2 becomes the approach determination value Cth or more, and at the ninth timing t39, the third capacitance C3 becomes the approach determination value Cth or more.

In this way, the detection device 303 detects the authentication operation at the fourth timing t34 and detects the first operation at the ninth timing t39. As a result, the vehicle door 3 is opened after the ninth timing t39.

According to the third embodiment, the following effects can be obtained in addition to the effects (1) to (3) equivalent to those of the first embodiment.
(5) As a condition for outputting the open operation command signal or the closed operation command signal, the detection device 303 is electrostatically charged in the authentication electrode between the detection of the authentication operation and the detection of the first operation or the second operation. It is required that the capacitance is less than the approach determination value Cth, that is, the user's hand is separated from the authentication electrode. Therefore, the detection device 303 can suppress the opening / closing operation of the vehicle door 3 based on the operation not intended by the user, while suppressing the deterioration of the operability of the user.

(Fourth Embodiment)
Next, a fourth embodiment of the detection device will be described with reference to FIG.
The detection device 304 in the fourth embodiment differs from the detection device 303 in the third embodiment in the detection mode of the authentication operation in the control circuit 354. Therefore, in the following description, the configuration different from the third embodiment will be described, and the description of the configuration overlapping with the third embodiment will be omitted.

In the fourth embodiment, the authentication electrodes are the first sensor electrode 31 and the second sensor electrode 32. That is, the detection device 304 detects the authentication operation when the first capacitance C1 and the second capacitance C2 become equal to or more than the approach determination value Cth over the determination time Tth.

Therefore, the detection device 304 needs to satisfy the following three conditions in order as the conditions for outputting the open operation command signal to the door ECU 10. First, the first capacitance C1 and the second capacitance C2 are equal to or greater than the approach determination value Cth over the determination time Tth. Second, the first capacitance C1 and the second capacitance C2 are less than the approach determination value Cth. Third, the sensor electrodes whose capacitance is equal to or higher than the approach determination value Cth are switched in the order of the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33.

Further, the detection device 304 needs to satisfy the following three conditions in order as a condition for outputting the closing operation command signal to the door ECU 10. First, the first capacitance C1 and the second capacitance C2 are equal to or greater than the approach determination value Cth over the determination time Tth. Second, the first capacitance C1 and the second capacitance C2 are less than the approach determination value Cth. Third, the sensor electrodes whose capacitance is equal to or higher than the approach determination value Cth are switched in the order of the third sensor electrode 33, the second sensor electrode 32, and the first sensor electrode 31.

The operation of the fourth embodiment will be described.
As shown in FIG. 8A, in the fourth embodiment, the user keeps his / her hand close to the first sensor electrode 31 (authentication electrode) and the second sensor electrode 32 (authentication electrode). Perform the authentication operation with. Subsequently, as shown in FIGS. 8A and 8B, the user brings his / her hand away from the first sensor electrode 31 and the second sensor electrode 32 closer to the first sensor electrode 31, and then first. The first operation is performed by moving in the direction D1.

As shown in FIG. 8C, when the user brings his / her hand close to the first sensor electrode 31 and the second sensor electrode 32 in order to perform the authentication operation, the first capacitance at the first timing t41. C1 and the second capacitance C2 begin to increase. Then, at the second timing t42 where the user's hand approaches the first sensor electrode 31 and the second sensor electrode 32 rather than the first timing t41, the first capacitance C1 and the second capacitance C2 becomes equal to or greater than the approach determination value Cth.

Subsequently, at the third timing t43 in which the distance between the user's hand and the first sensor electrode 31 and the second sensor electrode 32 is maintained constant, the first capacitance C1 and the second capacitance C2 are changed. The value of the approach judgment value Cth or higher remains unchanged. After that, at the fourth timing t44, the elapsed time Te from the second timing t42 becomes the determination time Tth.

Then, when the user releases his / her hand from the first sensor electrode 31 and the second sensor electrode 32, the first capacitance C1 and the second capacitance C2 begin to decrease from the fifth timing t45. Then, at the sixth timing t46 where the user's hand is separated from the first sensor electrode 31 and the second sensor electrode 32 than the fifth timing t45, the first capacitance C1 and the second capacitance C2 approach each other. It becomes less than the judgment value Cth.

After that, when the user moves the hand close to the first sensor electrode 31 in the first direction D1 in order to perform the first operation, the first capacitance C1 is the approach determination value at the seventh timing t47. It becomes Cth or more. After that, at the eighth timing t48, the second capacitance C2 becomes the approach determination value Cth or more, and at the ninth timing t49, the third capacitance C3 becomes the approach determination value Cth or more.

In this way, the detection device 304 detects the authentication operation at the fourth timing t44 and detects the first operation at the ninth timing t49. As a result, the vehicle door 3 is opened after the ninth timing t49.

According to the fourth embodiment, the same effect as that of the third embodiment can be obtained.
(Fifth Embodiment)
Next, a fifth embodiment of the detection device will be described with reference to FIG.

The detection device 305 in the fifth embodiment differs from the detection device 303 in the third embodiment in the detection mode of the authentication operation in the control circuit 355. Therefore, in the following description, the configuration different from the third embodiment will be described, and the description of the configuration overlapping with the third embodiment will be omitted.

In the fifth embodiment, the authentication electrodes are the first sensor electrode 31 and the third sensor electrode 33. That is, the detection device 305 detects the authentication operation when the first capacitance C1 and the third capacitance C3 become equal to or more than the approach determination value Cth over the determination time Tth.

Therefore, the detection device 305 is required to satisfy the following three conditions in order as conditions for outputting the open operation command signal to the door ECU 10. First, the first capacitance C1 and the third capacitance C3 have an approach determination value Cth or more over the determination time Tth. Second, the first capacitance C1 and the third capacitance C3 are less than the approach determination value Cth. Third, the sensor electrodes whose capacitance is equal to or higher than the approach determination value Cth are switched in the order of the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33.

Further, the detection device 305 is required to satisfy the following three conditions in order as a condition for outputting the closing operation command signal to the door ECU 10. First, the first capacitance C1 and the third capacitance C3 are equal to or greater than the approach determination value Cth over the determination time Tth. Second, the first capacitance C1 and the third capacitance C3 are less than the approach determination value Cth. Third, the sensor electrodes whose capacitance is equal to or higher than the approach determination value Cth are switched in the order of the third sensor electrode 33, the second sensor electrode 32, and the first sensor electrode 31.

The operation of the fifth embodiment will be described.
As shown in FIG. 9A, in the fifth embodiment, the user brings one hand close to the first sensor electrode 31 (authentication electrode) and the other hand the third sensor electrode 33 (authentication electrode). The authentication operation is performed by keeping the state close to. Subsequently, as shown in FIGS. 9A and 9B, the user separated both hands from the first sensor electrode 31 and the third sensor electrode 33, and brought one hand closer to the first sensor electrode 31. After that, the first operation is performed by moving to the first direction D1.

As shown in FIG. 9C, when the user brings his / her hand close to the first sensor electrode 31 and the third sensor electrode 33 in order to perform the authentication operation, the first capacitance at the first timing t51. C1 and the third capacitance C3 begin to increase. Then, at the second timing t52 in which the user's hand approaches the first sensor electrode 31 and the third sensor electrode 33 rather than the first timing t51, the first capacitance C1 and the third capacitance C3 becomes equal to or greater than the approach determination value Cth.

Subsequently, at the third timing t53 in which the distance between the user's hand and the first sensor electrode 31 and the third sensor electrode 33 is maintained constant, the first capacitance C1 and the third capacitance C3 are changed. The value of the approach judgment value Cth or higher remains unchanged. After that, at the fourth timing t54, the elapsed time Te from the second timing t52 becomes the determination time Tth.

Then, when the user releases his / her hand from the first sensor electrode 31 and the third sensor electrode 33, the first capacitance C1 and the third capacitance C3 begin to decrease from the fifth timing t55. Then, at the sixth timing t56 where the user's hand is separated from the first sensor electrode 31 and the third sensor electrode 33 than the fifth timing t55, the first capacitance C1 and the third capacitance C3 approach each other. It becomes less than the judgment value Cth.

After that, when the user moves the hand close to the first sensor electrode 31 in the first direction D1 in order to perform the first operation, the first capacitance C1 is the approach determination value at the seventh timing t57. It becomes Cth or more. After that, at the eighth timing t58, the second capacitance C2 becomes the approach determination value Cth or more, and at the ninth timing t59, the third capacitance C3 becomes the approach determination value Cth or more.

In this way, the detection device 305 detects the authentication operation at the fourth timing t54 and detects the first operation at the ninth timing t59. As a result, the vehicle door 3 is opened after the ninth timing t59.

According to the fifth embodiment, the same effect as that of the third embodiment can be obtained.
(Sixth Embodiment)
Next, a sixth embodiment of the detection device will be described with reference to FIG.

The detection device 306 in the sixth embodiment differs from the detection device 303 in the third embodiment in the detection mode of the authentication operation in the control circuit 356. Therefore, in the following description, the configuration different from the third embodiment will be described, and the description of the configuration overlapping with the third embodiment will be omitted.

In the sixth embodiment, the authentication electrodes are the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33. That is, the detection device 306 detects the authentication operation when the first capacitance C1, the second capacitance C2, and the third capacitance C3 become equal to or more than the approach determination value Cth over the determination time Tth.

Therefore, the detection device 306 is required to satisfy the following three conditions in order as the conditions for outputting the open operation command signal to the door ECU 10. First, the first capacitance C1, the second capacitance C2, and the third capacitance C3 are equal to or greater than the approach determination value Cth over the determination time Tth. Second, the first capacitance C1, the second capacitance C2, and the third capacitance C3 are less than the approach determination value Cth. Third, the sensor electrodes whose capacitance is equal to or higher than the approach determination value Cth are switched in the order of the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33.

Further, the detection device 306 is required to satisfy the following three conditions in order as conditions for outputting the closing operation command signal to the door ECU 10. First, the first capacitance C1, the second capacitance C2, and the third capacitance C3 are equal to or greater than the approach determination value Cth over the determination time Tth. Second, the first capacitance C1, the second capacitance C2, and the third capacitance C3 are less than the approach determination value Cth. Third, the sensor electrodes whose capacitance is equal to or higher than the approach determination value Cth are switched in the order of the third sensor electrode 33, the second sensor electrode 32, and the first sensor electrode 31.

The operation of the sixth embodiment will be described.
As shown in FIG. 10A, in the sixth embodiment, the user has his / her hand and arm close to the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33 as authentication electrodes. The authentication operation is performed by maintaining. Subsequently, as shown in FIGS. 10A and 10B, the user separates the hand and the arm from the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33, and the hand is the first sensor. After approaching the electrode 31, the first operation is performed by moving the electrode 31 in the first direction D1.

As shown in FIG. 10 (c), when the user brings his / her hand and arm close to the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33 in order to perform the authentication operation, the first timing is obtained. At t61, the first capacitance C1, the second capacitance C2, and the third capacitance C3 begin to increase. Then, at the second timing t62 in which the user's hand and arm are closer to the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33 than the first timing t61, the first capacitance is generated. The capacitance C1, the second capacitance C2, and the third capacitance C3 are equal to or higher than the approach determination value Cth.

Subsequently, at the third timing t63 in which the distance between the user's hand and arm and the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33 is maintained constant, the first capacitance C1 , The second capacitance C2 and the third capacitance C3 remain unchanged at the approach determination value Cth or higher. After that, at the fourth timing t64, the elapsed time Te from the second timing t62 becomes the determination time Tth.

Then, when the user releases his / her hand and arm from the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33, the first capacitance C1 and the second capacitance C2 are released from the fifth timing t65. And the third capacitance C3 begins to decrease. Then, at the sixth timing t66 where the user's hand and arm are separated from the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33 than the fifth timing t65, the first capacitance C1. The second capacitance C2 and the third capacitance C3 are less than the approach determination value Cth.

After that, when the user moves the hand close to the first sensor electrode 31 in the first direction D1 in order to perform the first operation, the first capacitance C1 is the approach determination value at the seventh timing t67. It becomes Cth or more. After that, at the eighth timing t68, the second capacitance C2 becomes the approach determination value Cth or more, and at the ninth timing t69, the third capacitance C3 becomes the approach determination value Cth or more.

In this way, the detection device 306 detects the authentication operation at the fourth timing t64 and detects the first operation at the ninth timing t69. As a result, the vehicle door 3 is opened after the ninth timing t69.

According to the sixth embodiment, the same effect as that of the third embodiment can be obtained.
(7th Embodiment)
Next, a seventh embodiment of the detection device will be described with reference to FIG.

When the detection device 307 in the seventh embodiment is compared with the detection device 305 in the fifth embodiment, the detection mode of the authentication operation in the control circuit 357 and the operation connecting the first operation or the second operation is slightly different. Therefore, in the following description, the configuration different from the third embodiment will be described, and the description of the configuration overlapping with the third embodiment will be omitted.

In the seventh embodiment, the authentication electrodes are the first sensor electrode 31 (second end electrode) and the third sensor electrode (first end electrode). Further, the detection device 307 needs that the authentication operation and the first operation or the second operation are partially interlocked as a condition for outputting the open operation command signal or the closed operation command signal. Specifically, the detection device 307 is one of the authentication electrodes and the starting point of the first operation between the start of the authentication operation and the start of the first operation as a condition for outputting the open operation command signal. It is necessary that the capacitance of the first sensor electrode 31 becomes equal to or higher than the approach determination value Cth. Further, the detection device 307 is one of the authentication electrodes and the starting point of the second operation between the start of the authentication operation and the start of the second operation as a condition for outputting the closing operation command signal. It is necessary that the capacitance of the third sensor electrode 33 is maintained at or higher than the approach determination value Cth.

Therefore, the detection device 307 needs to satisfy the following three conditions in order as the conditions for outputting the open operation command signal to the door ECU 10. First, the first capacitance C1 and the third capacitance C3 are equal to or greater than the approach determination value Cth over the determination time Tth. Second, subsequently, the first capacitance C1 remains equal to or higher than the approach determination value Cth, and the third capacitance C3 becomes less than the approach determination value Cth. Thirdly, the sensor electrode whose capacitance is equal to or higher than the approach determination value Cth is switched from the first sensor electrode 31 to the first direction D1.

Further, the detection device 307 needs to satisfy the following three conditions in order as a condition for outputting the closing operation command signal to the door ECU 10. First, the first capacitance C1 and the third capacitance C3 are equal to or greater than the approach determination value Cth over the determination time Tth. Second, the first capacitance C1 is less than the approach determination value Cth while the third capacitance C3 remains equal to or greater than the approach determination value Cth. Thirdly, the sensor electrode whose capacitance is equal to or higher than the approach determination value Cth is switched from the third sensor electrode 33 to the second direction D2.

The operation of the seventh embodiment will be described.
As shown in FIG. 11A, in the seventh embodiment, the user brings one hand close to the first sensor electrode 31 (authentication electrode) and the other hand to the third sensor electrode 33 (authentication electrode). The authentication operation is performed by keeping the state close to. Subsequently, as shown in FIGS. 11 (a) and 11 (b), the user separates the other hand from the third sensor electrode 33 and keeps the other hand close to the first sensor electrode 31. The first operation is performed by moving in the direction D1.

As shown in FIG. 11 (c), when the user brings both hands close to the first sensor electrode 31 and the third sensor electrode 33 in order to perform the authentication operation, the first capacitance at the first timing t71. C1 and the third capacitance C3 begin to increase. Then, at the second timing t72 where both hands of the user approach the first sensor electrode 31 and the third sensor electrode 33 rather than the first timing t71, the first capacitance C1 and the third capacitance C3 becomes equal to or greater than the approach determination value Cth.

Subsequently, at the third timing t73 in which the distance between both hands of the user and the first sensor electrode 31 and the third sensor electrode 33 is maintained constant, the first capacitance C1 and the third capacitance C3 are changed. The value of the approach judgment value Cth or higher remains unchanged. After that, at the fourth timing t74, the elapsed time Te from the second timing t72 becomes the determination time Tth.

Then, when the user releases the other hand from the third sensor electrode 33 while keeping one hand close to the first sensor electrode 31, the third capacitance C3 starts to decrease from the fifth timing t75. Then, at the sixth timing t76 when the other hand of the user separates from the third sensor electrode 33 than the fifth timing t75, the third capacitance C3 becomes less than the approach determination value Cth.

After that, when the user moves one hand in the first direction D1 while keeping it close to the first sensor electrode 31 in order to perform the first operation, the second capacitance C2 at the seventh timing t77. Is equal to or greater than the approach determination value Cth, and at the eighth timing t78, the third capacitance C3 is equal to or greater than the approach determination value Cth.

In this way, the detection device 307 detects the authentication operation at the fourth timing t74 and detects the first operation at the eighth timing t78. As a result, the vehicle door 3 is opened after the eighth timing t78.

The effect of the seventh embodiment will be described. According to the seventh embodiment, the following effects can be obtained in addition to the effects (1) to (3) equivalent to those of the first embodiment.
(6) In the seventh embodiment, the detection device 307 can suppress erroneous detection of the user's operation in that it requires the user to perform an authentication operation using both hands. Further, since the sensor electrode that is the starting point of the first operation or the second operation is the authentication electrode, it is easy for the user to continuously perform the authentication operation and the first operation or the second operation, and the detection device 307 is used by the user. It is possible to suppress the deterioration of operability.

(8th Embodiment)
Next, an eighth embodiment of the detection device 308 will be described with reference to FIG.
The detection device 308 in the eighth embodiment is slightly different in the detection mode of the authentication operation in the control circuit 358 when compared with the detection device 307 in the seventh embodiment. Therefore, in the following description, the configuration different from the seventh embodiment will be described, and the description of the configuration overlapping with the seventh embodiment will be omitted.

In the eighth embodiment, the authentication electrodes are the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33. That is, the detection device 308 detects the authentication operation when the first capacitance C1, the second capacitance C2, and the third capacitance C3 become equal to or more than the approach determination value Cth over the determination time Tth.

Therefore, the detection device 308 is required to satisfy the following three conditions in order as the conditions for outputting the open operation command signal to the door ECU 10. First, the first capacitance C1, the second capacitance C2, and the third capacitance C3 are equal to or greater than the approach determination value Cth over the determination time Tth. Second, the second capacitance C2 and the third capacitance C3 are less than the approach determination value Cth while the first capacitance C1 remains equal to or higher than the approach determination value Cth. Thirdly, the sensor electrode whose capacitance is equal to or higher than the approach determination value Cth is switched from the first sensor electrode 31 to the first direction D1.

Further, the detection device 308 is required to satisfy the following three conditions in order as conditions for outputting the closing operation command signal to the door ECU 10. First, the first capacitance C1, the second capacitance C2, and the third capacitance C3 are equal to or greater than the approach determination value Cth over the determination time Tth. Second, the first capacitance C1 and the second capacitance C2 are less than the approach determination value Cth while the third capacitance C3 remains equal to or higher than the approach determination value Cth. Thirdly, the sensor electrode whose capacitance is equal to or higher than the approach determination value Cth is switched from the third sensor electrode 33 to the second direction D2.

The operation of the eighth embodiment will be described.
As shown in FIG. 12A, in the eighth embodiment, the user brings one hand closer to the first sensor electrode 31 as the authentication electrode, and the other hand and the arm are the second as the authentication electrode. The authentication operation is performed by maintaining the state of being close to the sensor electrode 32 and the third sensor electrode 33. Subsequently, as shown in FIGS. 12 (a) and 12 (b), the user separated the other hand and arm from the second sensor electrode 32 and the third sensor electrode 33 and brought them closer to the first sensor electrode 31. The first operation is performed by moving one of the remaining hands in the first direction D1.

As shown in FIG. 12 (c), one hand and the other hand and arm are brought close to the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33 in order for the user to perform the authentication operation. Then, at the first timing t81, the first capacitance C1, the second capacitance C2, and the third capacitance C3 begin to increase. Then, at the second timing t82 in which the user's hand approaches the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33 rather than the first timing t81, the first capacitance C1 , The second capacitance C2 and the third capacitance C3 are equal to or higher than the approach determination value Cth.

Subsequently, at the third timing t83 in which the distance between the user's hand and the first sensor electrode 31, the second sensor electrode 32, and the third sensor electrode 33 is maintained constant, the first capacitance C1, the first, and the third are reached. 2 The capacitance C2 and the third capacitance C3 remain unchanged at the approach determination value Cth or higher. After that, at the fourth timing t84, the elapsed time Te from the second timing t82 becomes the determination time Tth.

Then, the user releases the other hand and the arm from the second sensor electrode 32 and the third sensor electrode 33 while keeping one hand close to the first sensor electrode 31, so that the second static is performed from the fifth timing t85. The capacitance C2 and the third capacitance C3 begin to decrease. Then, at the sixth timing t86 where the user's hand is separated from the second sensor electrode 32 and the third sensor electrode 33 than the fifth timing t85, the second capacitance C2 and the third capacitance C3 approach each other. It becomes less than the judgment value Cth.

After that, when the user moves one hand in the first direction D1 while keeping it close to the first sensor electrode 31 in order to perform the first operation, the second capacitance C2 at the seventh timing t87. Is equal to or greater than the approach determination value Cth, and at the eighth timing t88, the third capacitance C3 is equal to or greater than the approach determination value Cth.

In this way, the detection device 308 detects the authentication operation at the fourth timing t84 and detects the first operation at the eighth timing t88. As a result, the vehicle door 3 is opened after the eighth timing t88.

According to the eighth embodiment, the same effect as that of the seventh embodiment can be obtained.
This embodiment can be modified and implemented as follows. The present embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range. In the following description, the reference numeral of the detection device will be omitted in order to show that it is not a modification of the specific embodiment.

-The detection device may set a "contact determination value Cth2 (second approach determination value)" larger than the approach determination value Cth. That is, in the detection device, the case where the capacitance of the sensor electrode is the contact determination value Cth2 or more is the case where the detection target is closest to the sensor electrode. Assuming that the detection device is arranged inside the window glass 5 as in the above embodiment, when the detection target is closest to the sensor electrode, the detection target is closest to the sensor electrode while being in contact with the window glass 5. It will be the case.

Then, as shown in FIG. 13, the detection device (control circuit) may detect the authentication operation when the capacitance of the authentication electrode becomes the contact determination value Cth2 or more. Specifically, as shown in FIG. 13, the control circuit determines whether or not the first capacitance C1 is equal to or greater than the contact determination value Cth2 (step S31). Control when the first capacitance C1 is the contact determination value Cth2 or more (step S31: YES), that is, when the user's hand is sufficiently close to the first sensor electrode 31 (second end electrode). The circuit shifts the process to step S12. On the other hand, when the first capacitance C1 is less than the contact determination value Cth2 (step S31: NO), that is, when the user's hand is not close to the first sensor electrode 31, the control circuit has the third capacitance. It is determined whether or not the capacitance C3 is equal to or greater than the contact determination value Cth2 (step S32). Control when the third capacitance C3 is the contact determination value Cth2 or more (step S32: YES), that is, when the user's hand is sufficiently close to the third sensor electrode 33 (first end electrode). The circuit shifts the process to step S19. On the other hand, when the third capacitance C3 is less than the contact determination value Cth2 (step S32: NO), that is, when the user's hand is not close to the third sensor electrode 33, the control circuit ends this process. do.

According to this configuration, the user performs the authentication operation by bringing his / her hand closer to the authentication electrode than when performing the first operation and the second operation. Therefore, for example, when the user passes in front of the detection device, the detection device may detect the first operation or the second operation, but it is difficult to detect the authentication operation. Therefore, the detection device is less likely to erroneously detect the user's authentication operation.

In steps S11, S15, S16, S18, S22, and S23 of FIG. 4, the contact determination value Cth to be compared with the first capacitance C1, the second capacitance C2, and the third capacitance C3 is determined. The value may be Cth2. That is, in this case, the user performs the first operation or the second operation by moving the hand in contact with the window glass 5 in the first direction D1 or the second direction D2.

-In each embodiment, the detection device has the first operation and the second operation based on the direction in which the sensor electrode whose capacitance is equal to or more than the approach determination value Cth or the sensor electrode whose capacitance is less than the approach determination value Cth is switched. Although the operation is detected, the first operation and the second operation may be detected based on the switching direction of the sensor electrode whose capacitance changes in another embodiment.

-For example, the detection device may detect the first operation and the second operation based on the time derivative value of the capacitance. In the present embodiment, the capacitance increases when the user's hand approaches the center of the sensor electrode, and decreases when the user's hand moves away from the center of the sensor electrode. Therefore, when the time derivative of the capacitance in the sensor electrode is positive, it can be said that the user's hand is close to the sensor electrode, and the time derivative of the capacitance in the sensor electrode is negative. In the case of the value, it can be said that the user's hand is away from the sensor electrode. Therefore, the detection device is based on the direction in which the sensor electrode whose capacitance time derivative value is equal to or greater than the positive determination value is switched or the direction in which the sensor electrode whose capacitance time derivative value is less than the negative determination value is switched. , The first operation and the second operation may be detected.

The detection device may detect the authentication operation when the capacitance changes in a manner different from that of each embodiment. The mode of change in capacitance referred to here is the magnitude of capacitance, the time during which the capacitance changes, the number of times the capacitance changes, and the like. As an example, the detection device may detect the authentication operation when the second capacitance C2 becomes the contact determination value or more only twice within 1 second. That is, the detection device may detect the authentication operation when the user hits the portion of the window glass 5 provided with the second sensor electrode 32 twice.

-The detection device may output an open operation command signal or a closed operation command signal to the door ECU 10 when the authentication operation is detected after the first operation or the second operation is detected. Further, the detection device may output an open operation command signal or a close operation command signal to the door ECU 10 when the authentication operation, the first operation or the second operation, and the authentication operation are detected in order.

-In the second to eighth embodiments, when the capacitance in the authentication electrode is less than the weighted capacitance in the sensor electrodes other than the authentication electrode as in the first embodiment, the detection device is connected to the door ECU 10. The open operation command signal or the closed operation command signal may not be output.

-The detection device may be provided with a sensor electrode used for the authentication operation and a sensor electrode used for the first operation and the second operation separately.
-In the detection device, the plurality of sensor electrodes may not be provided so as to be arranged in the opening / closing direction of the vehicle door 3.

-The detection device does not have to be provided on the vehicle door 3. For example, the detection device may be provided on the body 2 of the vehicle 1.
The opening / closing body may be a swing door as an example of the vehicle door 3 or a back door. Further, the opening / closing body may be a window glass 5 that is opened / closed by driving an actuator. In this case, it is preferable that the plurality of sensor electrodes are arranged so as to be arranged in the opening / closing direction of the opening / closing body.

1 ... vehicle, 2 ... body, 2a ... opening, 3 ... vehicle door (an example of an opening / closing body), 4 ... door body, 5 ... window glass, 6 ... door lock, 10 ... door ECU, 11 ... door drive unit, 12 ... Door lock drive unit, 21 ... Door outer panel, 22 ... Door inner panel, 23 ... Door trim, 30, 302 to 308 ... Detection device (example of vehicle operation detection device), 31 ... First sensor electrode (second end) Electrode example), 32 ... 2nd sensor electrode, 33 ... 3rd sensor electrode (example of 1st end electrode), 34 ... Detection circuit, 35,352-358 ... Control circuit, 36 ... Board, 37 ... Housing , 41 ... detection unit, 42 ... control unit, C1 ... first capacitance, C2 ... second capacitance, C3 ... third capacitance, C1'... first weighted capacitance, C2'... first 2 Weighted capacitance, C3'... 3rd weighted capacitance, Cth ... Approach determination value (example of first approach determination value), Cth2 ... Contact determination value (example of second approach determination value), D1 ... 1st direction, D2 ... 2nd direction, Te ... Elapsed time, Tth ... Judgment time.

Claims (7)

Multiple sensor electrodes that are provided in a row and whose capacitance increases as the detection target approaches,
A control unit that opens and closes the opening and closing body of the vehicle by an actuator,
One or more sensor electrodes among the plurality of sensor electrodes are used as authentication electrodes, and in the arrangement direction of the plurality of sensor electrodes, the direction corresponding to the opening direction of the opening / closing body is set as the first direction and the closing direction of the opening / closing body. The direction corresponding to is the second direction,
Among the plurality of sensor electrodes, when the sensor electrode whose capacitance changes is switched in the first direction, the first operation is detected, and when the sensor electrode is switched in the second direction, the second operation is detected, and the certified electrode is used. It is provided with a detection unit for detecting an authentication operation when the capacitance in the above changes in a predetermined manner.
When the control unit detects both the first operation, the second operation, and the authentication operation, the vehicle operation for operating the opening / closing body in the direction corresponding to the one operation. Detection device. The determination value for determining the approach of the detection target to the plurality of sensor electrodes is set as the first approach determination value.
The vehicle operation detection device according to claim 1, wherein the detection unit detects the authentication operation when the capacitance of the authentication electrode becomes equal to or greater than the first approach determination value over the determination time. The weighted capacitance is defined as the value obtained by multiplying the capacitance of the other sensor electrodes excluding the authentication electrode by the weighting coefficient among the plurality of sensor electrodes.
In the detection unit, the capacitance in the authentication electrode is equal to or greater than the first approach determination value over the determination time, and the capacitance in the authentication electrode is weighted over the determination time. The vehicle operation detection device according to claim 2, which detects the authentication operation when the capacitance is equal to or greater than the capacitance. The determination value for determining the approach of the detection target to the authentication electrode is set as the first approach determination value.
The detector is
Among the plurality of sensor electrodes, the sensor electrode whose capacitance is equal to or higher than the first approach determination value detects the first operation when the sensor electrode switches to the first direction, and the first operation when the sensor electrode switches to the second direction. 2 Detects the operation and
The vehicle operation detection device according to claim 1, wherein the authentication operation is detected when the capacitance of the authentication electrode is equal to or larger than the second approach determination value larger than the first approach determination value. The sensor electrode provided at the end of the plurality of sensor electrodes in the first direction is the first end electrode, and the sensor electrode provided at the end of the plurality of sensor electrodes in the second direction is the second end. As a part electrode
The detection unit detects the first operation when the sensor electrode whose capacitance changes among the plurality of sensor electrodes switches from the authentication electrode including the second end electrode to the first direction. The second operation is detected when switching in the second direction from the certified electrode including the first end electrode.
The control unit
After detecting the authentication operation for the authentication electrode including the second end electrode, when the first operation is detected, the opening / closing body is opened and operated.
The invention according to any one of claims 2 to 4, wherein the opening / closing body is closed when the second operation is detected after the authentication operation for the authentication electrode including the first end electrode is detected. Operation detection device for vehicles. The sensor electrode provided at the end of the plurality of sensor electrodes in the first direction is the first end electrode, and the sensor electrode provided at the end of the plurality of sensor electrodes in the second direction is the second end. As a part electrode
The detection unit detects the first operation when the sensor electrode whose capacitance changes is switched from the second end electrode to the first direction, and from the first end electrode to the second direction. When switching, the second operation is detected and
The control unit
After the authentication operation for the authentication electrode is detected, when the first operation is detected after the capacitance in the authentication electrode becomes less than the first approach determination value, the opening / closing body is opened.
The claim that the opening / closing body is closed when the second operation is detected after the capacitance in the authentication electrode becomes less than the first approach determination value after the authentication operation for the authentication electrode is detected. 2. The operation detection device for a vehicle according to any one of claims 4. The sensor electrode provided at the end of the plurality of sensor electrodes in the first direction is the first end electrode, and the sensor electrode provided at the end of the plurality of sensor electrodes in the second direction is the second end. As a part electrode
The detection unit detects the first operation when the sensor electrode whose capacitance changes is switched from the second end electrode to the first direction, and from the first end electrode to the second direction. When switching, the second operation is detected and
The control unit
After detecting the authentication operation on the authentication electrode including two or more sensor electrodes including the second end electrode, the electrostatic capacity of the sensor electrode excluding the second end electrode among the authentication electrodes is the first. When the first operation is detected after the value becomes less than one approach determination value, the opening / closing body is opened and operated.
After detecting the authentication operation on the authentication electrode including two or more sensor electrodes including the first end electrode, the electrostatic capacity of the sensor electrode excluding the first end electrode among the authentication electrodes is the first. 1. The operation detection device for a vehicle according to any one of claims 2 to 4, which closes the opening / closing body when the second operation is detected after the value becomes less than the approach determination value.

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