Patent ID: 7892140

Claim:
A vehicle, comprising: a driving power source that outputs power to a power shaft; a motor that inputs and outputs power into and from the power shaft, the motor including a rotor, connected to the power shaft, and a stator; a transmission that enables transmission of power with a change of a speed between the power shaft and an axle and disconnection of the power shaft from the axle; and a controller that controls the transmission to disconnect the power shaft from the axle with restriction of rotation of the power shaft in response to a change of a gearshift position from a driving position to a parking position, wherein the motor drives and rotates the rotor by a rotating magnetic field formed on the stator to input and output the power into and from the power shaft, wherein, during rotation restriction control, the controller controls electric current running through the stator to form a fixed magnetic field on the stator substantially identical to the direction of a magnetic flux formed by one or more permanent magnets on the rotor, thereby preventing rotation of the rotor and ensuring that no torque is output from the motor to the power shaft during rotation restriction control.