Patent ID: 8104824

Claim:
A vehicle door system comprising: a pair of first and second doors that are arranged along a longitudinal direction of a vehicle on a side portion of a vehicle body, and that have first and second terminal edge portions, respectively, extending in a vertical direction of the vehicle, wherein states of the pair of the first and second doors include a first state where the pair of the first and second terminal edge portions face each other in the longitudinal direction of the vehicle, and a second state where the first terminal edge portion out of the pair of the first and second terminal edge portions is positioned more outwardly in the vehicle width direction than the second terminal edge portion; a drive unit for changing the state of the pair of the first and second doors from the first state to the second state; a collision detection device for outputting a collision signal in response to at least one of prediction and detection of a collision of the vehicle; and a controller for controlling the drive unit so that the state of the pair of the first and second doors is changed from the first state to the second state in response to detection of the collision signal, wherein: the collision detection device outputs a collision prediction signal in response to the prediction of a collision of the vehicle, and outputs a collision detection signal in response to the detection of a collision of the vehicle; and the controller controls the drive unit so that the state of the pair of the first and second doors is changed from the first state to the second state in response to detection of the collision prediction signal, and so that, when a predetermined time has passed since the collision prediction signal is detected, and no collision detection signal is detected, the state of the pair of the first and second doors is changed from the second state to the first state.