JP5050274B2 - Power opening and closing device for vehicle door - Google Patents

Description

  The present invention relates to a power opening / closing device for a vehicle opening / closing door that can be opened / closed with the power of a driving source such as a motor.

  In the power opening and closing device for a vehicle opening / closing door as described above, when an operation prohibition condition is detected such as when the vehicle is running or in a state where it can run, an operation prohibition mode is set and the slide by the power of the motor is performed. Prohibit automatic door opening and closing. If the sliding door opens unexpectedly due to an operation that is not based on the operator's will in the state where the operation prohibition mode is set, for example, erroneous operation, mischief, etc., an open / close operation switch provided on the sliding door in that state When operated, an electromagnetic clutch is connected, an operating force transmission path that connects the motor and the sliding door is connected, and a large resistance to reverse the motor and the reduction gear is applied to the movement of the sliding door, Thus, a braking force is applied to the slide door, and the slide door is held so as not to move from the position (see, for example, Patent Document 1).

JP 2006-22513 A

  However, in the power opening and closing device for a vehicle opening / closing door described in the above-mentioned Patent Document 1, even if the sliding door is inadvertently opened during the setting of the operation prohibition mode, the opening / closing operation switch is not operated unless the opening / closing operation switch is operated. Since the braking force cannot be applied to the sliding door, the sliding door may be opened greatly until the opening / closing operation switch is operated.

  In view of the above problems, the present invention is based on the will of the operator while holding the door by applying braking force immediately when the door is opened when the operation prohibition condition is detected. It is an object of the present invention to provide a power opening / closing device for a vehicle opening / closing door, which is capable of closing the opening / closing door by an operation of a steering wheel, thereby improving safety.

According to the present invention, the above problem is solved as follows.
An opening / closing door supported to be freely opened and closed by a vehicle body, a drive mechanism for moving the opening / closing door in the opening / closing direction by the power of a motor, and an operation detection switch capable of detecting an opening / closing operation of a handle when opening / closing the opening / closing door A power opening and closing device for a vehicular door including a control circuit that prohibits the operation of the drive mechanism when a predetermined operation prohibiting condition is detected,
The control circuit has a brake circuit capable of applying braking to rotation of the motor by short-circuiting an electric circuit between both terminals of the motor, and when the operation prohibition condition is detected, When it is detected that the opening / closing door is opened from the fully closed state by opening the handle, the brake circuit is immediately turned on to stop the opening / closing door, and the brake circuit is turned on. while you are, when the operation detection switch detects the opening operation of the handle is to continue the on-control of the braking circuit, when the operation detection switch detects the closing operation of the handle, the The brake circuit is controlled to be off, so that the opening / closing body can be manually closed.

  According to the present invention, even when the operation prohibition condition is detected, even if the opening / closing door is opened from the fully closed state due to an erroneous operation, mischief or the like, the opening / closing door can be stopped immediately by applying braking. For this reason, the open / close door does not open carelessly, and safety can be improved. In addition, when the door is held in a stopped state, the door can be closed by releasing the brake based on the handle closing operation, that is, the operator's will.

1 is a side 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 the power switch apparatus shown in FIG. It is a flowchart figure which shows the control procedure of the control circuit shown in FIG. It is a circuit diagram of the principal part of the control circuit in another Example. It is a circuit diagram of the principal part of the control circuit in another Example.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment according to the invention will be described with reference to FIGS. FIG. 1 is a side view of a vehicle to which the present invention is applied, FIG. 2 is a block diagram showing a control system of a power switch, and FIG. 3 is a flowchart showing a control procedure of the power switch. In the following description, the left side in FIG. 1 is “front”, and the right side is “rear”.

  A sliding door 2 that forms an opening door of a minivan or wagon type vehicle 1 is fixed to a vehicle body 3 and supported by guide rails 4, 5, and 6 that face in the front-rear direction in the middle and lower parts so as to be opened and closed in the front-rear direction. While moving from the fully closed position where the door entrance for entrance / exit provided on the side surface of the vehicle body 3 is closed by manual operation and electric operation by the power of the drive mechanism 7 to the outside slightly from the outer surface of the vehicle body 3, It can move to the fully open position moved backward along the side surface of the vehicle body 3 and vice versa.

  The sliding door 2 is held at a fully closed position by a door latch device (not shown) provided at the rear end thereof engaging with a striker (not shown) fixed to the vehicle body side. Any of an outside handle 13 provided on the outside of the slide door 2, an inside handle 14 provided on the inside of the vehicle, a driver operation switch 18 provided on the driver's seat, or a portable remote control switch (not shown) When the slide door 2 is closed by the operation, the engagement between the door latch device and the striker is released, and the slide door 2 is moved in the opening direction by the power of the drive mechanism 7 and is opened. In some cases, it can be moved to the fully closed position.

  When an operation prohibition condition described later is detected or when the main switch 17 provided in the driver's seat is switched to the OFF state, the driving of the motor 8 of the drive mechanism 7 is prohibited and the driver's seat operation is performed. Even if the switch 18 and the remote control operation switch are operated, the sliding door 2 cannot be opened and closed. However, since the handles 13 and 14 are mechanically connected to the door latch device, when the outside handle 13 or the inside handle 14 is operated, the engagement between the door latch device and the striker is released and the sliding door is released. 2 can be manually opened and closed. Note that the inside handle 14 is configured to operate in the opening direction when the sliding door 2 is opened, and to operate in the closing direction when the sliding door 2 is also closed.

  The drive mechanism 7 is disposed in the vehicle body 3, is routed along a motor 8 that can rotate forward and backward, a speed reduction unit 9 that decelerates the rotation of the motor 8, and a guide rail 5 in the middle part, and slides. A cable 10 </ b> A connected to the central rear end of the door 2 is provided in a power transmission path that connects the output rotary drum 10 that is wound so as to be wound and fed out, and the speed reduction unit 9 and the output rotary drum 10. And an electromagnetic clutch 11 capable of interrupting the path. The speed reduction unit 9 is constituted by a reduction gear such as a worm and a worm wheel that are meshed in a non-reversible manner.

  The motor 8 and the electromagnetic clutch 11 are controlled by a control circuit 12 mounted on the vehicle body. When the motor 8 is driven and controlled, and the electromagnetic clutch 11 is controlled to be connected, the rotation of the motor 8 is transmitted to the slide door 2 via the speed reducer 9, the electromagnetic clutch 11, the output rotating drum 10, and the cable 10A. Is done. Thereby, the slide door 2 is automatically opened and closed by the power of the motor 8. Further, when the electromagnetic clutch 11 is in a disconnected state, the sliding door 2 can be manually opened and closed because there is no resistance to reverse the speed reduction unit 9 and the motor 8. When the sliding door 2 is open and the motor 8 is stopped and the electromagnetic clutch 11 is connected and controlled, a resistance for reversing the speed reduction unit 9 and the motor 8 acts on the sliding door 2 and the resistance. Becomes a braking force for holding the slide door 2 in the opened position, and the sliding door 2 can be held in the opened position with this braking force.

  The control circuit 12 is mainly composed of a microcomputer, and an open port detection sensor 15, an operation detection switch 16, a main switch 17, a driver's seat operation switch 18, a vehicle travel information unit 19, and a battery 20 are electrically connected to its input ports. The motor 9, the electromagnetic clutch 11, and the buzzer 21 are electrically connected to the output port.

  The operation detection switch 16 detects the opening / closing operation of the outside handle 13 and the inside handle 14, and outputs an opening operation signal when the opening operation of each handle 13, 14 is detected, and also outputs a closing operation signal when the closing operation is detected. Transmit to the control circuit 12. The driver's seat operation switch 18 is operated when the sliding door 2 is automatically opened and closed by the power of the motor 8 from the driver's seat. The door opening detection switch 15 detects that the slide door 2 is opened, and transmits the door opening signal to the control circuit 12. As the door opening detection switch 15, a courtesy switch that is turned on / off in response to the opening / closing of the slide door 2, and a latch switch that is turned on / off in accordance with the rotational position of a latch (part that can be engaged / disengaged with a striker) of the door latch device In addition, there are a rotary encoder, a linear encoder, and the like used to detect the moving direction and moving amount of the slide door 2. When a rotary encoder or a linear encoder is used, calculation based on software processing for calculating the position of the slide door 2 based on the movement (rotation) direction and the movement amount (rotation angle) of the slide door 2 (or rotation output drum) Are provided in the control circuit 12.

  When the sliding door 2 is in the fully closed position, the control circuit 12 opens the motor 8 when the opening operation signal is transmitted from the remote control operation switch, the driver seat operation switch 18 or the operation detection switch 16. When the sliding door 2 is in the open position, the motor 8 is moved in the closing direction when the closing signal is also transmitted. The door closing control for controlling the rotation and connecting the electromagnetic clutch 11 is executed.

  The main switch 17 is provided in the driver's seat and can be switched on and off. When the main switch 17 is in the on state, the control circuit 12 validates the operation signals of the remote control operation switch, the driver's seat operation switch 18 and the operation detection switch 16, and when the main switch 17 is also in the off state, The operation signals of the driver's seat operation switch 18 and the operation detection switch 16 are invalidated. That is, when the main switch 17 is in the ON state, the slide door 2 is automatically operated by the power of the drive mechanism 7 by any one of the remote control operation switch, the driver's seat operation switch 18, the outside handle 13 or the inside handle 14. When the main switch 17 is in an OFF state, the drive mechanism 7 can be operated regardless of which of the remote control operation switch, the driver's seat operation switch 18, the outside handle 13 or the inside handle 14 is operated. The sliding door 2 cannot be automatically opened and closed by power. However, even when the main switch 17 is in the OFF state, the on / off control of the electromagnetic clutch 11 can be performed based on a predetermined condition only when the operation prohibition condition is detected.

  The vehicle travel information unit 19 is in a state where the vehicle is traveling or can travel, for example, a state where the vehicle speed is higher than a predetermined value and the automatic transmission select lever is in the D range, or a parking brake or / and a foot brake is applied. By detecting an operation prohibition condition in a state where the automatic transmission is not performed, an operation prohibition signal is transmitted to the control circuit 12, and the vehicle is in a stopped state, for example, a state where the select lever of the automatic transmission is in the P range, or the vehicle speed The transmission of the operation prohibition signal is canceled by detecting a state in which the parking brake and / or the foot brake are applied.

  The control circuit 12 executes the control as shown in FIG. 3 when the vehicle travel information unit 19 detects the operation prohibition condition. That is, the control circuit 12 determines whether or not the vehicle travel information unit 19 detects an operation prohibition condition in step S1, that is, whether or not the vehicle is traveling or is in a state where it can travel, and if YES, Regardless of the state of the main switch 17 by setting the operation prohibition mode, the operation signals of the remote control operation switch, the driver's seat operation switch 18 and the operation detection switch 16 are invalidated, and the drive mechanism 7 slides with the power of the motor 8. The automatic opening / closing operation of the door 2 is prohibited.

  In step S2, when it is detected that the inside handle 14 is opened due to an erroneous operation, mischief or the like and the slide door 2 is opened, the opening detection signal is transmitted from the opening detection switch 15, In step S3, the connection of the electromagnetic clutch 11 is controlled. As a result, a braking force is immediately applied to the opening / closing movement of the slide door 2, and the slide door 2 is stopped without being moved greatly in the opening direction and held at that position. At the same time, the buzzer 21 is operated to notify the occupant that the slide door 2 has been opened.

  In step S4, it is determined whether or not the inside handle 14 is operated in the closing direction based on the will of the operator, and the operation detection switch 16 detects the closing operation. If detected, in step S5, the control circuit 12 controls the electromagnetic clutch 11 to be disconnected to release the braking force. Accordingly, in step S6, the sliding door 2 can be manually closed without receiving resistance to reversely rotate the motor 8 and the speed reduction unit 9, and the opened sliding door 2 is closed based on the will of the operator. be able to. In step S4, when the inside handle 14 is operated in the door opening direction and the operation detection switch 16 detects the door opening operation, the electromagnetic clutch 11 is not controlled to be disconnected. If it does in this way, it can prevent that the slide door 2 is moved further in an opening direction, and can improve safety | security more.

  FIG. 4 shows a main part of a control circuit according to another embodiment of the present invention. The drive mechanism 7 of the power switching device in this embodiment does not include the electromagnetic clutch as in the above embodiment. This embodiment is the same as the embodiment shown in FIG. 2 except that the electromagnetic clutch is not provided and the control circuit 121 described later has the relays 22, 23, 24. The same parts will be described below using the same reference numerals as those in the embodiment of FIG.

  The speed reduction unit 9 of the drive mechanism 7 is constituted by a gear that meshes in a reversible manner. When the sliding door 2 is manually opened and closed, the movement is transmitted to the motor 8 via the cable 10A and the speed reduction unit 9. The motor 8 can be reversed.

  When the motor 8 is rotated in the opening direction, the control circuit 121 is a door opening switching relay 22 that switches from off (solid line position) to on (two-dot chain line position). Position) to ON (two-dot chain line position) door closing switching relay 23, and brake circuit relay to switch from OFF (solid line position) to ON (two-dot chain line position) when braking the rotation of the motor 8 24.

  The brake circuit relay 24 is controlled to be in the off state when the vehicle travel information unit 19 has not detected the operation prohibition condition, and to be switched to the on state when the operation detection condition is also detected. When the brake circuit relay 24 is in an ON state, a brake circuit that short-circuits between both terminals 8a and 8b of the motor 8 (motor terminal 8a, door opening switching relay 22, brake circuit relay 24, door closing switching relay 23, motor terminal 8b ) Is applied to brake the rotation of the motor 8.

  When the vehicle travel information unit 19 detects the operation prohibition condition, when the door detection switch 15 detects the opening of the slide door 2, the brake circuit relay 24 is switched on, and both ends of the motor 8 are turned on. A brake circuit is formed between the children 8a and 8b to brake the rotation of the motor 8. Thereby, a braking force is applied to the slide door 2, and the slide door 2 can be immediately held in the opened position. When the operation detection switch 16 detects the closing operation of the inside handle 14, the brake circuit holding relay 24 is turned off to release the brake circuit, and the sliding door 2 can be manually closed. To do.

  FIG. 5 shows a main part of a control circuit according to still another embodiment of the present invention. In the power switching device in this embodiment as well, the drive mechanism 7 does not include an electromagnetic clutch as in the embodiment of FIG. This embodiment also has the same configuration as that of the embodiment shown in FIG. 2 except that no electromagnetic clutch is provided and that a control circuit 122 described later has FETs (field effect transistors) 25 to 28. Since they are the same, the same parts will be described using the same reference numerals as those in the embodiment of FIG.

  The speed reduction unit 9 of the drive mechanism 7 is constituted by a gear that meshes in a reversible manner. When the sliding door 2 is manually opened and closed, the movement is transmitted to the motor 8 via the cable 10A and the speed reduction unit 9. The motor 8 can be reversed.

  The control circuit 122 includes first to fourth FETs 25 to 28 and a CPU (central processing unit) that controls each of the FETs 25 to 28. When the motor 8 is rotated in the opening direction, the first, fourth FETs 25 and 28 are controlled by the first and fourth FETs 25 to 28. When a voltage is applied to the gate to turn it on and rotate in the same closing direction, the second and third FETs 26 and 27 are turned on by applying a voltage to their gates, and when the motor 8 is braked. The third and fourth FETs 27 and 28 (or the first and second FETs 25 and 26) are turned on.

  When the vehicle travel information section 19 detects the operation prohibition condition, when the door detection switch 15 detects the opening of the slide door 2, both the third and fourth FETs 27 and 28 are on-controlled. As a result, a brake circuit (circuit connecting the motor terminal 8a, the third FET 27, the fourth FET 28, and the motor terminal 8b) for short-circuiting both terminals 8a and 8b of the motor 8 is turned on, and braking is applied to the rotation of the motor 8. . As a result, a braking force is applied to the slide door 2, and the slide door 2 is immediately held in the open position. Then, when the operation detection switch 16 detects the closing operation of the inside handle 14, the third and fourth FETs 27 and 28 are controlled to be in an OFF state, and the brake circuit is turned OFF, so that the sliding door 2 is manually closed. enable.

  The open / close door is not limited to the slide door 2, and can be applied to, for example, a swing-type side door or back door of a vehicle.

1 Vehicle 2 Sliding door (open / close door)
3 Vehicle bodies 4, 5, 6 Guide rail 7 Drive mechanism 8 Motor 8 a, 8 b Terminal 9 Reduction part 10 Output rotating drum 10 A Cable 11 Electromagnetic clutch 12, 121, 122 Control circuit 13 Outside handle 14 Inside handle 15 Door opening detection switch 16 Operation detection switch 17 Main switch 18 Driver's seat operation switch 19 Vehicle travel information section 20 Battery 21 Buzzer 22 Door open switch relay 23 Door close switch relay 24 Brake circuit relays 25-28 FET
29 CPU

Claims (1)

An opening / closing door supported to be freely opened and closed by a vehicle body, a drive mechanism for moving the opening / closing door in the opening / closing direction by the power of a motor, and an operation detection switch capable of detecting an opening / closing operation of a handle when opening / closing the opening / closing door A power opening and closing device for a vehicular door including a control circuit that prohibits the operation of the drive mechanism when a predetermined operation prohibiting condition is detected,
The control circuit has a brake circuit capable of applying braking to rotation of the motor by short-circuiting an electric circuit between both terminals of the motor, and when the operation prohibition condition is detected, When it is detected that the opening / closing door is opened from the fully closed state by opening the handle, the brake circuit is immediately turned on to stop the opening / closing door, and the brake circuit is turned on. while you are, when the operation detection switch detects the opening operation of the handle is to continue the on-control of the braking circuit, when the operation detection switch detects the closing operation of the handle, the A power opening / closing device for an opening / closing door for a vehicle, wherein the brake circuit is turned off to enable manual closing operation of the opening / closing body .

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