Abstract: A vehicle door control method includes operating a vehicle door handle to disengage a door lock device of a vehicle door, beginning to count time upon the operation of the door handle, if the vehicle door has moved from a fully closed position after the door lock device has been disengaged, operating a power assist mechanism to move the vehicle door in an opening direction, if the vehicle door has not moved from the fully closed position, operating the power assist mechanism to urge the vehicle door to move in the opening direction, if the vehicle door moves while being urged by the power assist mechanism, the operation of the power assist mechanism is continued to move the vehicle door in the opening direction, if the vehicle door does not move while being urged by the power assist mechanism, the power assist mechanism is operated in a direction which urges the vehicle door to move to the fully closed position.

Abstract: An operating mechanism for an open/close object comprising a driving device for driving and opening the open/close object, a position detecting device for detecting an open position of the open/close object (1), and a fully open position storage device for storing a fully open position of the open/close object, wherein, when the driving device drives and opens the open/close object, the driving device is stopped in a fully open recognition position stored in the fully open position storage device or a position a fixed amount short of the fully open recognition position. When a current position of the open/close object after completion of the opening drive by the driving device is different from the fully open recognition position (#1), the fully open position storage device sets a new fully open recognition position (#2).

Abstract: A door control system and method for a vehicle door includes a power assist mechanism. The system starts a power assistance for opening of the vehicle door from a fully closed position when the vehicle door is moved by an operation of a door handle under a condition that a door lock being disengaged in association with the operation of the door handle. The power assistance force is supplied to the vehicle door by actuating the power assist mechanism when the vehicle door is judged to be not moving even after a preset time period lapsed from a counting of a time started from the operation of the door handle.

Abstract: An operating mechanism for an open/close object comprising a driving device for driving and opening the open/close object, a position detecting device for detecting an open position of the open/close object (1), and a fully open position storage device for storing a fully open position of the open/close object, wherein, when the driving device drives and opens the open/close object, the driving device is stopped in a fully open recognition position stored in the fully open position storage device or a position a fixed amount short of the fully open recognition position. When a current position of the open/close object after completion of the opening drive by the driving device is different from the fully open recognition position (#1), the fully open position storage device sets a new fully open recognition position (#2).

Abstract: An opening and closing control device of opening and closing member for a vehicle includes a motor for actuating the opening and closing member, and a control unit for driving the motor so as to become a predetermined target speed and for driving the motor in reverse direction as a detection of entrapped obstacles when the actual speed of the motor reaches to an entrapment judgment speed which is set lower than the target speed. The control unit sets a threshold speed which is higher than the target speed and outputs an output duty to the motor for achieving the target speed by feedback control. The control unit switches the output duty after the actual speed of the motor becomes higher than the threshold speed to an output by feedforward control based on the target speed.

Abstract: A vehicle door apparatus includes a drive mechanism and a closure mechanism including a striker and a latch. The striker is positioned within a region where the striker is engageable with the latch when the drive mechanism drives the door in a closing direction. The latch is driven to engage with the striker and shifted to a final locked position by the closure mechanism. The vehicle door apparatus also includes a control mechanism for controlling operations of the drive mechanism and the closure mechanism, a detection mechanism for detecting the striker to be positioned within the region where the striker is engageable with the latch, and a drive force decreasing mechanism provided in the control mechanism for decreasing an output of the drive mechanism after the detecting mechanism detects that the strikes is positioned within the region where the striker is engageable with the latch.

Abstract: A vehicle door apparatus includes a drive mechanism and a closure mechanism including a striker and a latch. The striker is positioned within a region where the striker is engageable with the latch when the drive mechanism drives the door in a closing direction. The latch is driven to engage with the striker and shifted to a final locked position by the closure mechanism. The vehicle door apparatus also includes a control mechanism for controlling operations of the drive mechanism and the closure mechanism, a detection means for detecting the striker to be positioned within the region where the striker is engageable with the latch, and a drive force decreasing mechanism provided in the control mechanism for decreasing an output of the drive mechanism after the detecting means detects that the strikes is positioned within the region where the striker is engageable with the latch.

Abstract: An opening and closing control device of opening and closing member for a vehicle Includes a motor for actuating the opening and closing member, and a control unit for driving the motor so as to become a predetermined target speed and for driving the motor in reverse direction as a detection of entrapped obstacles when the actual speed of the motor reaches to an entrapment Judgment speed which is set lower than the target speed. The control unit sets a threshold speed which is higher than the target speed and outputs an output duty to the motor for achieving the target speed by feedback control. The control unit switches the output duty after the actual speed of the motor becomes higher than the threshold speed to an output by feedforward control based on the target speed.