JP6988742B2 - Opening / closing member control device and motor with control device - Google Patents

Description

The present invention relates to an opening / closing member control device for a vehicle and a motor with a control device.

For example, as disclosed in Patent Document 1, some power window devices for vehicles have a pinch prevention function for preventing foreign matter from being pinched by the wind glass during the closing operation. In such a power window device, it is detected that the operation of the window glass is hindered by a foreign substance from the fluctuation transition of the rotation speed of the motor as a drive source, and the motor is stopped or reversely driven based on the detection of the foreign substance. , The load applied to foreign matter is reduced.

By the way, in the power window device as described above, the position (mechanical lock position) where the rotation of the motor is restrained during the closing operation is recognized as the origin position (fully closed position). Then, in order to prevent the determination of the pinching of foreign matter when the window glass during the closing operation comes into contact with the weather strip or the like on the upper part of the window frame, a predetermined position on the opening direction side (lower side) from the origin position. The section up to is a mask section in which the pinch determination is not performed.

Japanese Unexamined Patent Publication No. 2014-34831

Further, in the power window device as described above, in order to prevent the upper end of the window glass from colliding with the window frame each time the window glass is closed, a section near the origin position (a section included in the mask section). It is desirable to perform a stop process (so-called soft stop process) to stop the energization of the motor based on the decrease in the speed of the motor. By performing this process, the upper end of the window glass is in the weather strip (that is, the window frame is completely closed by the window glass), but the upper end of the window glass is not collided with the window frame. Can be stopped.

However, in the control device that performs the soft stop processing, when foreign matter is pinched in the mask section, the restraint position of the motor due to the pinching is updated as the origin position, so that the soft stop processing is set based on the origin position. The execution section of is shifted to the opening direction side from the desired position. Then, for example, even though a part of the upper end of the window glass does not enter the weather strip (that is, the window frame is not completely closed), the operation of the window glass is stopped by the soft stop process. There is a risk of poor closing.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an opening / closing member control device and a motor with a control device capable of suppressing a closing failure of the opening / closing member.

The opening / closing member control device for solving the above problems includes a control unit (6) for controlling the drive of a motor (M) for opening / closing the opening / closing member (WG) of the vehicle, and the control unit is said to be in the closing operation. The section excluding the origin position setting process that sets the position where the rotation of the motor is constrained as the origin position (Ps) and the mask section (A1) from the origin position to the first set position (P1) on the opening direction side (A1). In A2), the pinching determination process for determining the occurrence of pinching of foreign matter based on the drive information of the motor during the closing operation and the second set position (P2) set between the origin position and the first set position. ) To the origin position (A3), a soft stop process of stopping the energization of the motor based on the decrease in the speed of the motor before the rotation of the motor during the closing operation is restrained is executed. In the opening / closing member control device, when the rotation of the motor is restrained in the mask section during the closing operation, the restrained position is previously stored with respect to the origin position stored at that time. If it is deviated to the open direction side by the set value (Py) or more, the soft stop process is invalidated at the next closing operation.

According to the above aspect, when the origin position is shifted to the opening direction side and updated due to the pinching of foreign matter in the mask section, the soft stop processing can be invalidated at the next closing operation. Therefore, it is possible to suppress the occurrence of a closing defect in which the closing operation of the opening / closing member is stopped by the soft stop process before the closing / closing of the opening / closing member.

In the motor with a control device that solves the above problems, the opening / closing member control device is integrally provided with the motor (M) for opening / closing the opening / closing member (WG).
According to the above aspect, in a motor with a control device integrally equipped with an opening / closing member control device, it is possible to suppress the occurrence of a closing failure in which the closing operation of the opening / closing member is stopped by a soft stop process before the opening / closing member is closed.

The schematic block diagram of the power window apparatus of embodiment. The schematic diagram for demonstrating the drive control of the wind glass in the same form. Explanatory drawing for demonstrating soft stop processing in the same form. The flow diagram for demonstrating the processing of the control part at the time of closing operation of the window glass of the same form.

Hereinafter, an embodiment of an opening / closing member control device and a motor with a control device will be described.
As shown in FIG. 1, the vehicle door D is provided with a window glass WG as an opening / closing member so as to be vertically movable. The motor M of the power window device 1 is driven and connected to the window glass WG via a regulator R such as a wire type or an X-arm type. Further, the motor M is a motor with a control device integrally provided with a control device 5 such as a power window ECU that controls the motor M.

The power window device 1 includes a rotation detection sensor 2 such as a Hall IC that detects the rotation of the motor M. The control device 5 includes a control unit 6 that supplies power to the motor M based on a signal from the rotation detection sensor 2 and a signal from the operation switch 3. The rotation detection sensor 2 outputs a pulse signal corresponding to the rotation of the motor M to the control unit 6. Then, the control unit 6 performs various controls while grasping the position and speed of the window glass WG by the input pulse signal, and drives and controls the motor M.

More specifically, when the operation switch 3 provided on the vehicle door D is operated, the control unit 6 drives and controls the motor M to open / close (that is, move up and down) the window glass WG in response to the operation.

Here, the control unit 6 determines whether or not the foreign matter has been pinched by the window glass WG during the closed operation based on the drive information of the motor M (for example, the rotation speed, the current value, etc.), and the pinching is performed. When this is performed, the pinch detection process for driving and controlling the motor M to stop or reverse the window glass WG is performed.

Further, in the control unit 6, when the window glass WG is closed (that is, upward movement), the wind glass WG reaches the fully closed position (that is, the mechanical limit position at the end of the movable range) and the rotation of the motor M is restrained. When this is done, the lock current due to the restraint is detected, and the energization of the motor M is stopped (lock stop processing).

As shown in FIG. 2, the control unit 6 performs an origin position setting process of setting the position where the rotation of the motor M is restrained and the lock current is detected as the origin position Ps. Then, as the position information of the window glass WG recognized by the control unit 6, as the window glass WG is operated in the opening direction side, the count number based on the pulse signal from the rotation detection sensor 2 is added to the origin position Ps. go.

The control unit 6 sets the section from the origin position Ps to the first setting position P1 on the opening direction side (that is, the lower side) as the mask section A1 that does not execute the pinch detection process. The length of the mask section A1 is constant even when the origin position Ps fluctuates. Further, even when the origin position Ps fluctuates, the lower end position of the mask section A1 is set to be located several millimeters below the lower end of the weather strip Da on the opening direction side of the upper part of the window frame. The origin position Ps reset (updated) by the lock stop process may fluctuate according to the fluctuation of the air temperature and the voltage value of the vehicle battery 4. Further, the control unit 6 executes the sandwiching detection process in a section other than the mask section A1 (pinching detection section A2).

Further, when the window glass WG in the closed operation approaches the origin position Ps, the control unit 6 stops the energization of the motor M before the window glass WG reaches the upper part of the window frame (mechanical movable limit position). Execute soft stop processing.

To explain the soft stop process in detail, the control unit 6 sets the section from the origin position Ps to the second set position P2 on the opening direction side (that is, the lower side) as the soft stop section A3. Further, the section between the first set position P1 set at the position separated from the origin position Ps with respect to the second set position P2 (the position on the opening direction side from the second set position P2) and the origin position Ps is a mask section. Let it be A1. Therefore, the length of the soft stop section A3 is shorter than the length of the mask section A1, and the second set position P2 which is the lower end position of the soft stop section A3 is from the first set position P1 which is the lower end position of the mask section A1. Is also set on the closed direction side (upper side). The length of the soft stop section A3 is constant even when the origin position Ps fluctuates.

As shown in FIG. 3, in the soft stop section A3, the control unit 6 stops the energization of the motor M according to the decrease in the rotation speed of the motor M during the closed operation based on the signal from the rotation detection sensor 2. .. As a result, the energization of the motor M is stopped by the deceleration of the motor M due to the resistance when the wind glass WG is in sliding contact with the weather strip Da, so that the wind glass WG reaches the end of the range of motion and the rotation of the motor M is started. The energization of the motor M can be stopped before being restrained. Therefore, the upper end of the wind glass WG collides with the window frame (the end of the range of motion) while the entire upper end of the wind glass WG is in the weather strip Da (the state where the wind glass WG closes the window frame completely). It is possible to suppress the generation of abnormal noise by stopping the motor M before the operation.

Next, the control mode of the control unit 6 when the window glass WG is closed will be described with reference to the flow chart of FIG.
When the control unit 6 starts the closing operation of the window glass WG based on the signal from the operation switch 3, the rotation speed of the motor M is calculated in step S1, and the position information of the window glass WG is counted in the next step S2. I do.

After that, in step S3, the control unit 6 determines whether or not the window glass WG is located in the mask section A1. Here, when the window glass WG is located in the mask section A1, the process of the control unit 6 shifts to step S4. On the other hand, when the window glass WG is located outside the mask section A1 (that is, located in the pinch detection section A2), the process of the control unit 6 shifts to step S13.

In step S13, the control unit 6 performs the above-mentioned pinch detection process. Here, if the pinching of the foreign matter is not detected, the process returns to step S1.
On the other hand, when the pinching of foreign matter is detected, the drive of the motor M is temporarily stopped in step S14, and the motor M is reversely driven to open the window glass WG in the next step S15. After that, when the amount of movement of the window glass WG for opening operation reaches a predetermined amount in step S16, the driving of the motor M is stopped in step S12.

In step S4 after it is determined in step S3 that the window glass WG is located in the mask section A1, the control unit 6 has the reset flag Fr for invalidating the above-mentioned soft stop processing turned on. Judge whether or not. Here, when the reset flag Fr is on, step S5 of determining the necessity of soft stop processing, which will be described later, is skipped, and the process proceeds to step S6 of determining the necessity of lock stop processing.

On the other hand, when the reset flag Fr is off in step S4, the process proceeds to step S5 of determining the necessity of soft stop processing. In this step S5, when the window glass WG is in the soft stop section A3, the control unit 6 determines whether or not the soft stop process is necessary based on the speed reduction of the motor M. Then, when it is determined that the soft stop process is necessary, the process proceeds to step S12, and the control unit 6 stops the driving of the motor M.

On the other hand, when it is determined in step S5 that the soft stop process is unnecessary, the control unit 6 proceeds to step S6 and determines the necessity of the lock stop process described above based on the detection of the lock current. Here, if it is determined that the lock stop process is unnecessary, the control unit 6 returns to the step S4.

On the other hand, if it is determined in step S6 that the lock stop process is necessary, the control unit 6 proceeds to step S7 and resets (updates) the position of the window glass WG at that time as the origin position Ps.

After that, in step S8, the control unit 6 calculates the deviation amount Px between the reset origin position Ps and the origin position Ps immediately before the reset. When the deviation amount Px is a positive value, it means that the origin position Ps after reset is shifted to the opening direction side with respect to the origin position Ps before reset.

After that, in step S9, the control unit 6 determines whether or not the deviation amount Px is equal to or greater than the preset set value Py. That is, the control unit 6 determines whether or not the origin position Ps after the reset is deviated from the origin position Ps before the reset by the set value Py or more toward the opening direction side. The set value Py is set to a value larger than the deviation of the restraint position of the motor M (that is, the reset position of the origin position Ps) that may occur due to the voltage fluctuation of the vehicle battery 4.

In step S9, when the deviation amount Px is equal to or greater than the set value Py, the control unit 6 turns on the reset flag Fr (step S10). On the other hand, in the same step S9, when the deviation amount Px is less than the set value Py, the control unit 6 turns off the reset flag Fr (step S11).

After turning on the reset flag Fr in step S10 or turning off the reset flag Fr in step S11 in this way, the control unit 6 shifts to step S12 to stop the driving of the motor M.

The operation of this embodiment will be described.
When the window glass WG is closed, the lock stop process is executed based on the rotational restraint of the motor M due to the pinching of foreign matter in the section from entering the mask section A1 to entering the soft stop section A3, and the origin position Ps. May be reset. At this time, when the origin position Ps after reset deviates from the origin position Ps before reset by the set value Py or more in the opening direction, the reset flag Fr is turned on. As a result, the soft stop process (step S5) is invalidated in step S4 at the next closing operation of the window glass WG. Then, in the closing operation in which the soft stop processing is invalidated, when the window glass WG reaches the fully closed position (that is, the mechanical limit position at the end of the movable range) and the lock stop processing is executed, the origin position is reached. Ps is reset to an appropriate position, and the reset flag Fr is turned off.

The effect of this embodiment will be described.
(1) The control unit 6 performs an origin position setting process for setting the position where the rotation of the motor M is restrained during the closing operation as the origin position Ps. Further, the control unit 6 is closed in the section excluding the mask section A1 from the origin position Ps to the first set position P1 on the open direction side (that is, the pinch detection section A2 set on the open direction side of the mask section A1). The pinching determination process for determining the occurrence of pinching of foreign matter is performed based on the drive information of the operating motor M. Further, the control unit 6 restrains the rotation of the motor M during the closing operation in the soft stop section A3 from the second set position P2 set between the origin position Ps and the first set position Ps to the origin position Ps. A soft stop process is performed to stop the energization of the motor M based on the decrease in the speed of the motor M.

Then, when the rotation of the motor M is constrained in the mask section A1 during the closed operation, the control unit 6 has the constrained position equal to or more than the set value Py with respect to the origin position Ps stored at that time, on the open direction side. If it deviates from, the soft stop processing is invalidated at the next closing operation. Thereby, when the origin position Ps is deviated to the opening direction side and updated due to the pinching of foreign matter in the mask section A1, the soft stop processing can be invalidated at the next closing operation. Therefore, it is possible to suppress the occurrence of a closing defect in which the closing operation of the window glass WG is stopped by the soft stop treatment before the closing of the window glass WG.

(2) The set value Py is set to a value larger than the deviation of the restraint position (reset position of the origin position Ps) of the motor M that may occur due to the voltage fluctuation of the vehicle battery 4 that supplies power to the motor M. This makes it possible to prevent the soft stop process from being invalidated when the origin position Ps shifts due to the voltage fluctuation of the vehicle battery 4.

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.
-The flow of the control unit 6 of the above embodiment is an example, and if the flow can invalidate the next soft stop processing when the deviation amount Px is equal to or greater than the set value Py, the flow is changed to an embodiment other than the above embodiment. It is possible.

-In the flow of the control unit 6 of the above embodiment, steps S14 to S16 may be omitted. That is, when the pinching of foreign matter is detected in step S13, the motor M may be stopped without being reversely driven.

In the lock stop process of the above embodiment, the restraint of the rotation of the motor M is detected based on the lock current, but the restraint of the rotation of the motor M may be detected based on the rotation speed of the motor M. For example, the control unit 6 may recognize that the rotation of the motor M is restricted when the state in which the pulse signal input from the rotation detection sensor 2 does not change continues for a predetermined time set in advance.

In the above embodiment, the control device 5 including the control unit 6 is provided integrally with the motor M and fixed to the vehicle door D, but the present invention is not limited to this, and for example, the control device 5 is separate from the motor M. It may be provided at a position separated by and controls the drive of the motor M.

-In the above embodiment, the power window device 1 of the vehicle is embodied, but the present invention is not limited to this, and may be embodied in a sunroof device, a sliding door device, or the like of the vehicle.

WG ... window glass (opening / closing member), M ... motor (motor with control device), 4 ... vehicle battery, 5 ... control device (opening / closing member control device), 6 ... control unit, Ps ... origin position, Py ... set value, P1 ... 1st set position, P2 ... 2nd set position, A1 ... mask section, A2 ... pinch detection section, A3 ... soft stop section.

Claims (3)

A control unit (6) for controlling the drive of a motor (M) for opening and closing a vehicle opening / closing member (WG) is provided.
The control unit
The origin position setting process for setting the position where the rotation of the motor is restrained during the closing operation as the origin position (Ps), and the origin position setting process.
In the section (A2) excluding the mask section (A1) from the origin position to the first set position (P1) on the opening direction side, it is determined that foreign matter is caught based on the drive information of the motor during the closing operation. Pinching judgment processing and
In the section (A3) from the second set position (P2) set between the origin position and the first set position to the origin position, the motor is rotated before the rotation of the motor during the closing operation is constrained. An opening / closing member control device that executes a soft stop process that stops energization of the motor based on a decrease in the speed of the motor.
When the rotation of the motor is constrained in the mask section during the closed operation, the control unit has a constrained position of a preset value (Py) or more with respect to the origin position stored at that time. , An opening / closing member control device that invalidates the soft stop process at the next closing operation when the position is deviated to the opening direction side. The opening / closing member control device according to claim 1, wherein the set value is set to a value larger than the deviation of the restraint position that may occur due to the voltage fluctuation of the vehicle battery (4) that supplies power to the motor. A motor with a control device in which the opening / closing member control device according to claim 1 or 2 is integrally provided with a motor (M) for opening / closing the opening / closing member (WG).

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