Vehicle parking interlock system and method

A parking interlock method for a vehicle, comprising:

• detecting, by a safety state information detecting unit, safety state information of the vehicle;
• detecting, by an operating state information detecting unit, operating state information of the vehicle;
• generating, by a controller, a safety state judgment result based on the safety state information of the vehicle provided by the safety state information detecting unit to the controller;
• controlling, by the controller, a brake according to the operating state information of the vehicle provided by the operating state information detecting unit to the controller via a motor controller;
• and
• controlling, by the motor controller, a motor according to the safety state judgment result provided by the controller to the motor controller,
• wherein controlling, by the controller, the brake according to the operating state information of the vehicle and controlling, by the motor controller, the motor according to the safety state judgment result comprises further comprising:
• controlling, by the controller, the brake to lock the vehicle at an end of a first predetermined non-zero period during which the operating state information indicates that the vehicle's speed and motor torque simultaneously remains zero,
• generating and sending, by the motor controller, a motor starting instruction to the controller after the first predetermined non-zero period;
• controlling, by the motor controller, subsequent to sending the motor starting instruction to the controller, the motor to start after a second predetermined non-zero period;
• and
• controlling, by the controller, subsequent to receiving the motor starting instruction from the motor controller, the brake to unlock the vehicle according to the motor starting instruction within a third predetermined non-zero period,
• wherein the third predetermined non-zero period is less than the second predetermined non-zero period such that the vehicle is unlocked before the motor is started.