JP4481327B2 - Power door opening and closing device for vehicle - Google Patents

Description

The present invention relates to a power door opening / closing device for a vehicle door provided with an opening / closing drive device that automatically opens / closes the vehicle door using motor power.

In the vehicle door power opening and closing device , the automatic vehicle shift lever that automatically changes the transmission gear ratio is in the neutral position, the vehicle speed is lower than the predetermined vehicle speed, and the foot brake or parking brake is operated. Is set to the operation permission mode to permit automatic opening / closing of the door by the motor power of the opening / closing drive device, and the shift lever is in a position other than the neutral position and the parking position, and the vehicle speed is higher than a predetermined vehicle speed. Yes, when the foot brake or parking brake is not operated, the operation prohibit mode is set, and the automatic opening / closing of the door by the motor power of the opening / closing drive device is prohibited, thereby improving the safety of automatic door opening / closing. (For example, refer to Patent Document 1).

Japanese Patent No. 3467170

However, the vehicle door power opening and closing device described in Patent Document 1 has been developed especially for an automatic vehicle that automatically shifts the transmission gear ratio, and is a manual for manually shifting the transmission. No optimal control device has been developed for cars.

An object of the present invention is to provide a power door opening and closing device for a vehicle door that is particularly suitable for a manual vehicle in which a transmission can be switched manually.

Automatic present invention, in order to solve the above problems, a door manual car type vehicle switching the gear ratio of the transmission shift lever for manual operation, based on the operation of the operation switch, the door by the power of the motor a closing drive device for opening and closing the a neutral sensor that detects a neutral position of the shift lever, an accelerator pedal depression sensor for detecting the depression of the accelerator pedal when the vehicle is in a stopped state, detects the running of the vehicle A vehicle speed sensor that transmits a neutral detection signal, the vehicle speed sensor detects travel of the vehicle, and the accelerator pedal depression detection sensor detects depression of the accelerator pedal. Neutral sensor failure determination When the ignition switch of the vehicle is the case in the OFF state, the neutral sensor failure determining portion of the determination result, ignoring the neutral sensor and the detection of the accelerator pedal depression sensor, based on an operation of said operation switch The neutral detection sensor is controlled to switch to an operation permission mode permitting automatic opening and closing of the door by the opening and closing drive device, the ignition switch is in an ON state , and the neutral sensor failure determination unit does not determine that there is a failure. When the neutral position is detected and the accelerator pedal depression detection sensor does not detect depression of the accelerator pedal, the control is switched to the operation permission mode, the ignition switch is on , and the neutral sensor failure determination unit Is faulty Not determined, the neutral sensor detects a neutral position, when the accelerator pedal depression sensor detects the depression of the accelerator pedal, and switching control to the operation inhibition mode, the ignition switch is turned on A control circuit unit that controls to switch to the operation inhibition mode ignoring detection of the neutral detection sensor and the accelerator pedal depression detection sensor when the neutral sensor failure determination unit determines that there is a failure. . With this configuration, when the ignition switch is on, the driver is willing to start if the accelerator pedal depression detection sensor detects the depression of the accelerator pedal even if the neutral detection sensor detects the neutral position. Therefore, it is possible to improve safety by prohibiting automatic opening / closing of the door by the opening / closing drive device. When the ignition switch is off, the door can be automatically opened and closed by the opening / closing drive device even when the shift lever is in a position other than the neutral position. The door can be opened and closed automatically even when the lever is parked at a position other than the neutral position. Further, when the neutral sensor failure determination unit determines that there is a failure, the automatic opening / closing of the door is prohibited, so that safety can be improved.

  The present invention is most suitable for a manual vehicle in which a transmission is switched manually, and can improve the safety of automatic door opening and closing and can improve convenience.

  Hereinafter, an embodiment according to the present invention will be described with reference to the drawings. FIG. 1 is an external view of a vehicle to which an embodiment of the present invention is applied, FIG. 2 is a block diagram showing a control system of an opening / closing control device, and FIGS. 3 and 4 are flowcharts showing control procedures.

  Reference numeral 1 denotes a manual vehicle type vehicle including a shift lever 2 that is operated when manually changing the transmission gear ratio. A slide door (hereinafter referred to as a door) 3 provided on the side surface of the vehicle body is operated by manual operation by operating an inner handle 5 and an outer handle 6 provided inside and outside the vehicle and driving of an opening / closing drive device 4 mounted on the vehicle body. It is possible to move from the fully closed position where the door entrance / exit is closed slightly outward from the outer surface of the vehicle body, to the fully opened position moved rearward along the side surface of the vehicle body, and vice versa.

  The opening / closing drive device 4 includes a motor 41 that can rotate forward and backward, a rotating drum (not shown) that can rotate forward and backward via a speed reducer that decelerates rotation of the motor 41, and a rotary drum that can be wound and fed out. A cable (not shown) that is routed along the guide rail 1A that is rotated and supports the door 3 so as to be slidable in the front-rear direction, and is connected to the rear end of the door 3, and the power between the motor 41 and the rotary drum And a frictional or meshing electromagnetic clutch 42 capable of interrupting the transmission path. When each operation switch described below is operated, the electromagnetic clutch 42 is activated and the motor 41 is rotated. Is transmitted to the door 3 via a speed reducer, a rotating drum, and a cable, and the door 3 is automatically opened and closed in the opening direction or the closing direction. When the electromagnetic clutch 42 is in a disconnected state, the door 3 can be manually opened and closed without receiving resistance to reverse the speed reducer and the motor 41. The motor 41 and the electromagnetic clutch 42 are controlled as described later by the control circuit unit 7 mounted on the vehicle body.

  Next, the connection relationship between the control circuit unit 7 and each electrical element and the control of the control circuit unit 7 will be described with reference to the block diagram shown in FIG.

  The control circuit unit 7 is a motor based on a pulse signal output from a calculation unit 71 that performs overall control of each electrical element through program control by a microcomputer and a rotation sensor 43 that detects the rotation of the motor 41 in the opening / closing drive device 4. A motor speed detection circuit 73 for detecting the rotation speed of the motor 41, a door speed detection circuit 74 for detecting the opening / closing speed of the door 3 based on a pulse signal output from the rotation sensor 44 for detecting the rotation of the rotary drum, and a vehicle body. A voltage detector 75 for detecting the output voltage of the battery 17 of the main power supply, a clutch control circuit 76 for controlling the electromagnetic clutch 42, a PWM control circuit 77 for controlling the motor 41 by PWM (Pulse Width Modulation), and PWM control And a current detection circuit 78 that detects a current output from the circuit 77.

  The input unit 72 of the calculation unit 71 includes an inner handle switch 8 that detects an operation of the inner handle 5, an outer handle switch 9 that detects an operation of the outer handle 6, and a wireless operation that receives an operation signal of a portable wireless operation switch. Operation system such as a switch receiver 10, a main switch 14 provided near the driver's seat, a driver's seat operation switch 15 operated when the door 3 is automatically opened and closed from the driver's seat, and a rear seat operation switch 16 provided near the rear seat , And when the shift lever 2 is in the neutral position, it is turned on to detect the neutral detection sensor 11 for detecting the neutral position of the shift lever 2, the vehicle speed sensor 12 for detecting the vehicle speed, and the depression of the accelerator pedal 18 operated by the driver. Accelerator pedal depressing detection sensor 13, power of vehicle 1 Vehicle state detection system signals such as an engine rotation speed detection sensor 19 that detects the rotation speed of the engine (or motor), and detection signals such as a motor speed detection circuit 73, a door speed detection circuit 74, and a voltage detection unit 75, An on / off signal of the ignition switch 20 is transmitted. The vehicle state detection signals of the neutral detection sensor 11, the vehicle speed sensor 12, the accelerator pedal depression detection sensor 13, and the engine rotation speed detection sensor 19 are input via the CAN communication (Controller Area Network) mounted on the vehicle. Sent to. In addition, at least one of the inner handle switch 8, the outer handle switch 9, the wireless operation switch receiver 10, the driver seat operation switch 15, and the rear seat operation switch 16 constitutes the operation switch of the present invention.

  The main switch 14 can be switched on and off, and permits the opening / closing drive device 4 to be driven in the on state, so that the inner handle switch 8, the outer handle switch 9, the wireless operation switch receiver 10, the driver's seat operation switch 15, Based on one of the operation signals of the rear seat operation switch 16, the door 3 can be automatically opened and closed by driving the opening / closing driving device 4, and the driving of the opening / closing driving device 4 is prohibited in the off state.

  The motor 41 via the PWM control circuit 77 and the current detection circuit 78 and the electromagnetic clutch 42 via the clutch control circuit 76 are electrically connected to the output unit 79 of the calculation unit 71.

  The calculation unit 71 determines that the vehicle 1 satisfies the stop condition based on the vehicle state detection system signals transmitted by the neutral detection sensor 11, the vehicle speed sensor 12, the accelerator pedal detection sensor 13, the engine rotation speed detection sensor 19, and the ignition switch 20, respectively. A vehicle stop determination unit 711 for determining whether or not the vehicle is in a safe state, and a neutral sensor on failure determination unit 712 for determining whether or not the neutral detection sensor 11 has an on failure. .

  When the vehicle 1 is stopped in a safe state, the vehicle stop determination unit 711 switches to an operation permission mode that permits automatic opening / closing of the door 3 by driving of the opening / closing drive device 4, and the vehicle 1 is traveling or starting When ready to do, the mode is switched to an operation prohibition mode in which automatic opening / closing of the door 3 is prohibited.

  In the operation permission mode, an operation signal of any one of the inner handle switch 8, the outer handle switch 9, the wireless operation switch receiving unit 10, the driver seat operation switch 15 or the rear seat operation switch 16 is transmitted to the input unit 72. The clutch control circuit 76 controls the connection of the electromagnetic clutch 42 and the PWM control circuit 77 controls the motor 41 to rotate forward (or reversely) based on a command from the arithmetic unit 71. Accordingly, the door 3 can be automatically opened (or closed) with the power of the motor 41. In the operation inhibition mode, any operation signal is rejected, and the door 3 cannot be opened / closed automatically. Note that when the main switch 14 is in the OFF state, the driving of the opening / closing drive device 4 is prohibited even when the calculation unit 71 is in the operation permission mode.

  The neutral sensor on failure determination unit 712 determines whether or not the neutral detection sensor 11 is in an on state despite the shift lever 2 being at a position other than the neutral position, that is, whether or not the neutral detection sensor 11 has an on failure. The on-failure determination of the neutral detection sensor 11 is performed according to the procedure shown in the flowchart of FIG. The neutral sensor-on failure determination is repeatedly executed at predetermined time intervals (for example, every 5 seconds).

  First, in S1, a timer capable of measuring a predetermined time is initialized, and the process proceeds to S2. When the neutral detection sensor 11 is on in S2 (YES), that is, when it is determined that the shift lever 2 is in the neutral position, the process proceeds to S3, and when it is off (NO), that is, the shift lever 2 is neutral. If it is determined that the position is other than the position, the process proceeds to S7. When the process proceeds to S7, the neutral sensor on failure determination is canceled and the neutral sensor on failure determination is terminated.

  In S3, it is determined whether or not the vehicle is traveling based on the detection signal of the vehicle speed sensor 12, and if it is determined that the vehicle speed is present (YES), that is, the neutral detection sensor 11 determines the neutral position of the shift lever 2. If the vehicle travel is detected in spite of the detection, the process proceeds to S4. Further, when there is no vehicle speed in S3 (NO), that is, when it is determined that the neutral detection sensor 11 detects the neutral position and is in the stop state, the process proceeds to S8. In S8, if the previous neutral sensor ON failure determination result is determined to have a failure (YES), the process proceeds to S9, where the neutral detection sensor 11 determines that there is an ON failure, and also that there is no failure. If it has been determined (NO), it is determined that there is no failure based on the previous determination result, and the process ends.

  In S4, if the previous neutral sensor ON failure determination result is not determined to have an ON failure (NO), the process proceeds to S5, and if determined to have no failure (YES), then The process proceeds to S9 without making the determination, and the neutral detection sensor 11 determines that there is an ON failure and ends.

  In S5, based on the detection signal of the accelerator pedal depression detection sensor 13, it is determined whether or not the accelerator pedal 18 is depressed. If the accelerator pedal 18 is depressed (YES), the process proceeds to S6 and the predetermined time is reached. If it has elapsed (YES), the process proceeds to S9, where it is determined that the neutral detection sensor 11 has an on-failure and the process ends. If it is determined in S5 that the accelerator pedal 18 is not depressed (NO), it is determined that there is no failure in the neutral detection sensor 11 based on the previous determination result, and the process ends.

  Next, the vehicle stop condition determination procedure of the vehicle stop determination unit 711 will be described based on the flowchart shown in FIG. First, in S11, it is determined whether or not the ignition switch 20 (IGN) is on. If it is on (YES), that is, if the engine is operating, the process proceeds to S12, and if it is off (NO) ), That is, if the engine is stopped, the process proceeds to S16.

  In S16, the operation permission mode is set by ignoring the determination result of the neutral sensor on failure determination unit 712 and the detection of the vehicle speed sensor 12, the neutral detection sensor 11, the accelerator pedal depression detection sensor 13, and the engine rotation speed detection sensor 19. To do. This is to eliminate the inconvenience that the door 3 cannot be automatically opened / closed by the driving of the opening / closing drive device 4 even though the vehicle 1 is stopped in a safe state. That is, in the manual vehicle, unlike the automatic vehicle, the shift lever 2 may be parked at a position other than the neutral position (for example, first gear), for example, instead of the parking brake or in combination with the parking brake. It is extremely inconvenient that the door 3 cannot be automatically opened and closed in such a state. In order to eliminate this inconvenience, in the present embodiment, if the ignition switch 20 is off, the opening / closing drive device 4 is always allowed to be driven and the door 3 can be automatically opened and closed.

  In S12, based on the determination result of the neutral sensor ON failure determination unit 712, if the neutral detection sensor 11 has no ON failure (NO), the process proceeds to S13, and if there is an ON failure (YES). The process proceeds to S17.

  In S17, the neutral sensor on failure determination unit 712 determines that the neutral detection sensor 11 has an on failure, and the neutral detection sensor 11 may be on even though the shift lever 2 is in a position other than the neutral position. Therefore, the automatic prohibition of the door 3 is prohibited by setting the operation prohibition mode.

  In S13, it is determined whether or not the shift lever 2 is in the neutral position based on the detection signal of the neutral detection sensor 11. If it is determined that the shift lever 2 is in the neutral position (YES), the process proceeds to S14, and the neutral position is determined. If it is determined that the position is other than the position (NO), the process proceeds to S17, the operation prohibit mode is set, and the automatic opening / closing of the door 3 is prohibited.

  In S14, it is determined whether or not the vehicle 1 is traveling based on the detection signal of the vehicle speed sensor 12. If it is determined that the vehicle 1 is stopped (NO), the process proceeds to S15, and the traveling is performed. If it is determined (YES), for example, if the shift lever 2 is in the neutral position and the vehicle 1 is traveling on a sloping ground or the like, the process proceeds to S17 to set the operation prohibit mode and set the door 3 automatic open / close is prohibited.

  In S15, it is determined whether or not the accelerator pedal 18 is depressed based on the detection signal of the accelerator pedal depression detection sensor 13. If not depressed (NO), the process proceeds to S16, and is depressed. If yes (YES), it is determined that the driver is willing to start, the process proceeds to S17, the operation prohibit mode is set, and the automatic opening / closing of the door 3 is prohibited.

  When the process proceeds to S16, the determination result of the neutral sensor ON failure determination unit 712 indicates that there is no ON failure in the neutral detection sensor 11, the shift lever 2 is in the neutral position, the vehicle 1 is stopped, and the accelerator pedal 18 is not depressed. It judges that it is in a safe state when getting on and off, sets the operation permission mode, and permits automatic opening and closing of the door 3.

  Although one embodiment of the present invention has been described above, the following modifications and changes can be made to the present embodiment without departing from the scope of the present invention.

(I) The door is replaced with a sliding door, and a swing side door or back door is used.
(Ii) The present invention is applied to a vehicle including a shift lever that can be switched between an automatic mode in which a transmission gear ratio can be automatically switched and a manual mode in which the transmission can be switched manually.
(Iii) When the vehicle speed is equal to or lower than a predetermined extremely low predetermined speed, it is determined that the vehicle is stopped.
(Iv) When the amount of depression of the accelerator pedal 18 is equal to or less than a predetermined value, it is determined that the accelerator pedal 18 is not depressed.
(V) Instead of detecting the accelerator pedal depression amount by the accelerator pedal depression detection sensor 13, the condition is that the engine rotation speed detection value by the engine rotation speed detection sensor 19 exceeds a predetermined value.

1 is an external view of a vehicle to which an embodiment of the present invention is applied. It is a block diagram which shows the control system of an opening / closing control apparatus. It is a flowchart figure which shows the judgment procedure of a vehicle stop determination part. It is a flowchart figure which shows the judgment procedure of a neutral sensor on failure judgment part.

1 Vehicle 1A Guide rail 2 Shift lever 3 Sliding door (door)
4 Opening / Closing Drive Device 5 Inner Handle 6 Outer Handle 7 Control Circuit 8 Inner Handle Switch (Operation Switch)
9 Outer handle switch (operation switch)
10 Wireless operation switch receiver (operation switch)
11 Neutral detection sensor 12 Vehicle speed sensor 13 Accelerator pedal depression detection sensor 14 Main switch 15 Driver's seat operation switch (operation switch)
16 Rear seat operation switch (operation switch)
17 Battery 18 Accelerator pedal 19 Engine rotation speed detection sensor 20 Ignition switch 41 Motor 42 Electromagnetic clutch 43, 44 Rotation sensor 71 Calculation unit 72 Input unit 73 Motor speed detection circuit 74 Door speed detection circuit 75 Voltage detection unit 76 Clutch control circuit 77 PWM Control circuit 78 Current detection circuit 79 Output unit 711 Vehicle stop determination unit 712 Neutral sensor on failure determination unit

Claims (1)

A door of a manual vehicle type vehicle that switches a transmission gear ratio with a shift lever for manual operation;
Operation on the basis of the operation of the switch, and closing drive device for automatically opening and closing by the power of the door motor,
A neutral sensor that detects a neutral position of the shift lever,
An accelerator pedal depression detection sensor for detecting depression of an accelerator pedal when the vehicle is in a stopped state;
A vehicle speed sensor for detecting the traveling of the vehicle;
When the neutral detection sensor transmits a neutral detection signal, the vehicle speed sensor detects traveling of the vehicle, and the accelerator pedal depression detection sensor detects depression of the accelerator pedal, it is determined that the neutral detection sensor has a failure. A neutral sensor failure determination unit,
When the ignition switch of the vehicle is in an OFF state , the determination result of the neutral sensor failure determination unit, the detection of the neutral detection sensor and the accelerator pedal depression detection sensor are ignored, and the opening / closing based on the operation of the operation switch is ignored. Switching to an operation permission mode for permitting automatic opening / closing of the door by the driving device, the ignition switch is in an on state , the neutral sensor failure determination unit does not determine that there is a failure, and the neutral detection sensor is in a neutral position. When the accelerator pedal depression detection sensor does not detect the depression of the accelerator pedal, the control is switched to the operation permission mode, the ignition switch is in the on state , and the neutral sensor failure determination unit fails. Yes Not the neutral sensor detects a neutral position, when the accelerator pedal depression sensor detects the depression of the accelerator pedal, the aforementioned switching control on the operation inhibition mode, the ignition switch is in the on state A control circuit unit that controls to switch to the operation inhibition mode ignoring the detection of the neutral detection sensor and the accelerator pedal depression detection sensor when the neutral sensor failure determination unit determines that there is a failure. A power door opening and closing device for a vehicle door.

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