JP4590743B2 - Vehicle door control system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle door control system.
[0002]
[Prior art]
In recent years, for example, as a door control system installed in a passenger car, there are an electronic unlatch system and an electronic door closer system. Here, in the electronic unlatch system, when the unlatch switch is turned on, the DC motor is activated to bring the latch into an unlatched state, thereby bringing the door into a half-door state (Toyota Motor Corporation May 2000). (Refer to the description of the OPA new car issued on the 24th). On the other hand, in the electronic door closer system, when the door is in a half-door state, the DC motor is activated and the door is fully closed (a new Century car issued on April 18, 1997 by Toyota Motor Corporation). See the manual).
[0003]
[Problems to be solved by the invention]
By the way, since the electronic unlatch system and the electronic door closer system described above are respectively installed in the passenger car independently of each other, there is no particular problem in controlling the door in the independent operation of these systems.
[0004]
However, if the electronic unlatch system is added to the electronic door closer system to form a single system, the following problems occur. That is, when the unlatching system is unlatched, the door is in a half-door state, so the door closer system performs the closing operation of the door in the half-door state regardless of the intention of the occupant and tries to fully close the door. To do.
[0005]
For this reason, the unlatching operation by the unlatching system and the closing operation of the door closer system are repeated while interfering with each other, and there arises a problem that the half-door state and the fully closed state of the door are alternately and permanently repeated.
[0006]
Such a failure occurs for the first time because an unlatching system is added to the door closer system, and does not occur when the unlatching system and the door closer system are installed as separate systems.
[0007]
In view of the above, an object of the present invention is to provide a vehicle door control system in which an unlatching system and a door closer system are combined so as not to interfere with each other.
[0008]
[Means for Solving the Problems]
In solving the above problems, in the vehicle door control system according to the invention of claim 1,
An unlatching / closing means (M, 10, 80, 141, 110) that is in an unlatched state when the vehicle door is automatically set to a half-door state, and that is closed when the door is fully closed;
Open detection means (30) for detecting when the door is manually opened from its half-door state;
Determination means (180) for determining whether or not the opening detection means (30) has detected that the door has been manually opened from the half-door state,
When unlatched Closed unit becomes unlatched operating state, the non-detection state of the opening detection means, by repeating the determination of the determination means is adapted to prohibit the unlatching Closed unit becomes closer operating state ,
Having switch means (40) operated when it is desired to automatically close the door;
The unlatching / closing means has a closing mechanism (10) for fully closing the door from the half-door state,
The closer operating state is characterized in that the closing mechanism (10) is an operating state in which the door is fully closed from the half door state when the switch means is operated .
[0009]
In this way, when the unlatching / closing means enters the unlatching operation state, the prohibiting means prohibits the unlatching / closing means from entering the closer operation state when the opening detection means is not detected. The establishment of the process of automatically closing the door in the closer operation state is prohibited as the state becomes openable.
[0010]
As a result, it is possible to reliably prevent the occurrence of the problem that the unlatched operation state and the closer operation state interfere with each other and are repeated alternately. In other words, after the unlatch operation state is completed, the door is left in an openable state such as a half-door state, and the door is opened by the occupant's intention unless the occupant manually opens the door. The door will not be closed without permission.
[0011]
In the vehicle door control system according to the invention described in claim 2,
First switch means (20) operated when it is desired to automatically open the door of the vehicle,
Second switch means (40) operated when it is desired to automatically close the door;
The unlatching / closing means (M) which enters the unlatching operation state so as to make the door openable based on the operation of the first switch means and enters the closer operation state so as to fully close the door based on the operation of the second switch means (M 10, 80, 141, 110),
Open detection means (30) for detecting when the door is manually opened from its openable state;
Determination means (180) for determining whether or not the opening detection means (30) has detected that the door has been manually opened from its openable state,
When unlatched Closed unit becomes unlatched operating state, the non-detection state of the opening detection means, by repeating the determination of the determination means is adapted to prohibit the unlatching Closed unit becomes closer operating state ,
The unlatching / closing means has a closing mechanism (10) for fully closing the door from the half-door state,
The closer operation state is an operation state in which the closing mechanism (10) causes the door to be fully closed from the half door state when the second switch means is operated .
[0012]
Also by this, the same effect as that of the first aspect of the invention can be achieved.
[0013]
In addition, the code | symbol in the bracket | parenthesis of each said means shows the correspondence with the specific means as described in embodiment mentioned later.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 shows an electronic door control system for a passenger car according to the present invention. The door control system includes an unlatching / closing mechanism 10. The unlatching / closing mechanism 10 is configured such that the DC motor M is unlatched by the operation of the DC motor M so that the door of the passenger car is in a half-door state, and the door in the half-door state is fully closed. Has been.
[0015]
The door control system includes a normally open touch switch 20 and a normally open courtesy switch 30, and the touch switch 20 and courtesy switch 30 are disposed in the vicinity of the driver's seat in the passenger compartment of the passenger car. Yes. The touch switch 20 is turned on when operated to open the door of the passenger car. The courtesy switch 30 is operated and turned on to open the door manually.
[0016]
The door control system also includes a normally open half-door switch 40 and a normally open position detection switch 50. The half-door switch 40 is disposed in the vicinity of the driver's seat in the passenger compartment, and the half-door switch 40 is operated and turned on when it is desired to close the door. Further, the position detection switch 50 detects that the DC motor M is in its initial rotation position and is turned on.
[0017]
The door control system includes a microcomputer 70. The microcomputer 70 executes a computer program according to the flowchart shown in FIG. 2 in accordance with the operation thereof. During the execution, the touch switch 20 and the courtesy system are executed. Various operations for driving the drive circuit 80 according to the operation of the switch 30 and the half-door switch 40, whether the position detection switch 50 is turned on, the vehicle speed signal from the electronic control unit 60 (hereinafter referred to as ECU 60) and the door lock signal. Perform arithmetic processing. The computer program is stored in advance in the ROM of the microcomputer 70. Further, the microcomputer 70 operates by being supplied with power from the battery B via the ignition switch IG of the passenger car.
[0018]
The ECU 60 is mounted on the passenger car, and the ECU 60 includes a door lock device of the passenger car and a vehicle speed sensor connected to the door lock device. The vehicle speed sensor detects the vehicle speed of the passenger car and outputs a vehicle speed signal. The door lock device generates a door lock signal when the door is locked in a stopped state of the passenger car (corresponding to zero output of the vehicle speed sensor). The door lock device locks the door by the door lock operation and unlocks the door by the unlock operation. The drive circuit 80 rotates the DC motor M under the control of the microcomputer 70.
[0019]
In the present embodiment configured as described above, when the ignition switch IG is turned on, the microcomputer 70 is powered by the battery B and enters an operating state, and starts execution of the computer program according to the flowchart of FIG. Then, in step 100, it is determined whether or not the half door switch 40 is on.
[0020]
Here, if the driver sitting in the driver's seat of the passenger car turns on the half door switch 40 because the door of the passenger car is in the half door state, the determination in step 100 is YES. Then, in step 110, a closer operation process for fully closing the door is performed. Accordingly, the unlatching / closing mechanism 10 is driven by the driving circuit 80 in accordance with the closing operation of the microcomputer 70 by the DC motor M, so that the door in the half-door state is fully closed.
[0021]
Thereafter, a process for returning the position of the DC motor M to its initial rotational position is performed in step 120. Accordingly, the DC motor M is driven by the drive circuit 80 so as to return to the initial rotation position in a state where the door is fully closed by the unlatch / close mechanism 10. If the position detection switch 50 is turned on during the determination of NO in step 130 and the repetition of the processing in step 120, the determination in step 130 is YES and the computer program returns to step 100.
[0022]
On the other hand, if the determination in step 100 is NO, it is determined in step 140 whether the touch switch 20 is on. At this stage, if the driver turns on the touch switch 20 to open the door of the passenger car in the fully closed state, the determination in step 140 is YES.
[0023]
Then, in step 141, an unlatching operation process is performed. Accordingly, the unlatching / closing mechanism 10 is driven by the drive circuit 80 in accordance with the unlatching operation processing of the microcomputer 70 by the DC motor M so that the door in the fully closed state can be opened. , It will be in an unlatched state. Thereby, the said door will be in a half door state.
[0024]
In such a state, in the next step 150, it is determined whether or not the passenger car has started to travel. Here, if the driver has started the passenger car, the ECU 60 outputs the current vehicle speed immediately after starting the passenger car to the microcomputer 70 as a vehicle speed signal. Then, the determination at step 150 is YES based on the vehicle speed signal. Accordingly, the processing after step 110 is performed in the same manner as described above, and the unlatching / closing mechanism 10 performs a closing operation under the driving of the driving circuit 80 to fully close the door of the passenger car. Thereby, the fully closed state of a door can be automatically ensured with the start of the said passenger car.
[0025]
On the other hand, if the determination in step 150 after step 141 is NO, it is determined in step 160 whether or not a door lock signal is input from the door lock device of the ECU 60. Here, if the door lock device generates a door lock signal for locking the door of the passenger car, the door lock signal is input to the microcomputer 70. For this reason, the determination in step 160 is YES. At this time, the door is in a half-door state as described above.
[0026]
After a determination of YES in step 160, if a predetermined time (a time necessary for determining whether the input of the door lock signal is an erroneous input due to a disturbance) has elapsed, the input of the door lock signal from the ECU 60 is correct. From the determination, the determination in step 170 is YES. Accordingly, the processing after step 110 is performed in the same manner as described above, and the unlatching / closing mechanism 10 performs a closing operation under the driving of the driving circuit 80 to fully close the door of the passenger car. Thereby, the door lock by the door lock apparatus with respect to the door of the said passenger car can be ensured automatically.
[0027]
On the other hand, if the determination in step 160 or the determination in step 170 is NO after the determination of NO in step 150 as described above, whether or not the courtesy switch 30 is on is determined in step 180.
[0028]
Here, if the driver of the passenger car manually opens the door on the premise that the door is in a half door state when the passenger car is stopped as described above, the courtesy switch 30 is turned on. Therefore, the determination in step 180 is YES, and in steps 190 and 200, the same processing as in steps 120 and 130 is performed, and the DC motor M returns to its initial rotational position.
[0029]
On the other hand, if it is determined NO in step 180 based on the turn-off of courtesy switch 30, the computer program returns to step 150 and the processing after step 150 is performed again. If the determination in step 200 is YES or the determination in step 140 is NO, the computer program returns to step 100.
[0030]
As described above, according to the present embodiment, even if the door is in a half-door state due to the unlatching operation process in step 141, the passenger car is in a stopped state, and the determination in step 160 or the determination in step 170 is NO. If the door of the passenger car is manually opened and the courtesy switch 30 is not turned on, the process proceeds from step 141 to step 110, that is, automatically as the door becomes a half-door in the unlatch operation process. The establishment of the process of fully closing the door in the closer operation process is prohibited.
[0031]
As a result, it is possible to reliably prevent the occurrence of the problem that the unlatching operation process and the closer operation process are mutually repeated due to interference with each other. Specifically, after the unlatch operation is completed, the door is kept in a half-door state, and the passenger opens the door by manually opening the door. For this reason, except when opening a door by a passenger | crew's intention, the said door does not close arbitrarily.
[0032]
In carrying out the present invention, the steps 150, 160, and 170 may be eliminated in the above embodiment. In this case, after performing the unlatching operation process in step 141, it is directly determined in step 180 whether or not the courtesy switch is on. If the determination in step 180 is NO because the courtesy switch 30 is off, the determination in step 180 is further repeated, thereby prohibiting the transition to the closer operation processing in step 110 after the processing in step 141.
[0033]
Further, in the implementation of the present invention, not only for passenger cars, but also for combining the electronic unlatch system and the electronic door closer system installed in a vehicle such as an automobile as one door control system, The same effect as the above embodiment can be achieved.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a flowchart showing the operation of the microcomputer of FIG.
[Explanation of symbols]
10 ... Unlatch / close mechanism, 20 ... Touch switch,
30 ... courtesy switch, 40 ... half door switch,
70: microcomputer, 80: drive circuit.

Claims (2)

An unlatching / closing means (M, 10, 80, 141, 110) which is in an unlatched operation state when the vehicle door is automatically brought into a half-door state and is in a closer operation state when the door is fully closed;
Open detection means (30) for detecting when the door is manually opened from its half-door state;
Determination means (180) for determining whether or not the opening detection means (30) has detected that the door has been manually opened from the half-door state;
When the unlatching / closing means is in the unlatching operation state, the unlatching / closing means is prohibited from entering the closer operation state by repeating the determination by the determination means in the non-detection state of the opening detection means. It has become so doing,
Having switch means (40) operated when it is desired to automatically close the door;
The unlatching / closing means has a closing mechanism (10) for fully closing the door from a half-door state,
The closer operating state is an operating state in which the closing mechanism (10) causes the door to be fully closed from a half door state when the switch means is operated . First switch means (20) operated when it is desired to automatically open the door of the vehicle,
Second switch means (40) operated to automatically close the door;
An unlatching operation is performed so that the door can be opened based on the operation of the first switch means, and a closer operation is performed so that the door is fully closed based on the operation of the second switch means. Closing means (M, 10, 80, 141, 110);
Open detection means (30) for detecting when the door is manually opened from its openable state;
Determination means (180) for determining whether or not the opening detection means (30) has detected that the door has been manually opened from its openable state,
When the unlatching / closing means is in the unlatching operation state, the unlatching / closing means is prohibited from entering the closer operation state by repeating the determination by the determination means in the non-detection state of the opening detection means. It has become so doing,
The unlatching / closing means has a closing mechanism (10) for fully closing the door from a half-door state,
The closer operating state is an operating state in which the closing mechanism (10) causes the door to be fully closed from a half door state when the second switch means is operated .

Images