Abstract: A door lock system includes: a plurality of door lock devices each including a latch mechanism, a lock mechanism, a double lock mechanism, a motor, and a detector, the double lock mechanism alternately switching between a double lock set state and a double lock unset state by driving the motor in one direction; and a control device configured to, when switching of the state of the double lock mechanism is requested, perform drive control in the one direction of the motor of the door lock device where the double lock mechanism state does not match a requested switch destination state, and not perform drive control in the one direction of the motor of the door lock device where the double lock mechanism state matches the requested switch destination state.

Abstract: A door lock device for a vehicle includes: a latch mechanism selectively forming a latched state in which a door is held in a closed state, and an unlatched state in which opening of the door is allowed; a lock mechanism selectively forming a locked state in which switching of the latch mechanism to the unlatched state by manual operation is prohibited, and an unlocked state in which the switching of the latch mechanism to the unlatched state by manual operation is allowed; a double lock mechanism selectively forming a double lock set state in which switching of the lock mechanism to the unlocked state is prohibited, and a double lock unset state in which the switching of the lock mechanism to the unlocked state is allowed; a first actuator electrically switching the lock mechanism to the unlocked state; a second actuator electrically switching the latch mechanism to the unlatched state regardless of a state of the lock mechanism and a state of the double lock mechanism; a third actuator electrically switchin

Abstract: An operation assistance system for assisting a user in operating an opening and closing portion includes: a sensor configured to detect an acceleration applied to the opening and closing portion; a drive unit configured to generate a driving force for displacing the opening and closing portion; a manual operation detection unit configured to detect, based on the acceleration detected by the sensor, a manual operation of opening or closing the opening and closing portion when the user applies a force to the opening and closing portion; and a drive control unit configured to control the drive unit to reduce an operation force of the user required for the manual operation when the manual operation is detected.

Abstract: A vehicle opening/closing body control device includes: an assist control unit that applies a voltage to a motor which drives an opening/closing body of a vehicle so as to perform an assist opening/closing actuation that assists a manual operation force with respect to the opening/closing body for performing an opening/closing actuation of the opening/closing body; and an actuation finish determination unit that determines whether or not a finish condition of the assist opening/closing actuation is satisfied, based on a change amount of an opening/closing speed of the opening/closing body per unit time, in which the assist control unit stops applying the voltage to the motor in a case where the finish condition of the assist opening/closing actuation is satisfied.

Abstract: A vehicle opening/closing body control device includes: an assist control unit that applies a voltage to a motor which drives an opening/closing body of a vehicle so as to perform an assist opening/closing actuation that assists a manual operation force with respect to the opening/closing body for performing an opening/closing actuation of the opening/closing body; and an actuation finish determination unit that determines whether or not a finish condition of the assist opening/closing actuation is satisfied, based on a change amount of an opening/closing speed of the opening/closing body per unit time, in which the assist control unit stops applying the voltage to the motor in a case where the finish condition of the assist opening/closing actuation is satisfied.