ELECTRONIC PARKING BRAKE SYSTEM, ASSISTANT STARTING METHOD THEREOF FOR MOTOR VEHICLE

摘要

An electronic parking brake system and assistant starting method thereof for a motor vehicle are provided, wherein, the system receives all sensor signals and detection signals of the vehicle. When any one of the following conditions is satisfied, brake will be released for assistant starting: Condition (1): a torque transmitted by a clutch is calculated, and the torque delivered by the clutch is greater than a torque needed for starting the vehicle. Condition (2): an engine rotate speed is greater than an engine idle speed, and an accelerator pedal and a clutch pedal are depressed simultaneously. Condition (3): starting trend of the vehicle is detected. Condition (4): the engine rotate speed is smaller than a first predetermined threshold value calculated according to throttle opening data. Condition (5): a rotate speed or angle of driving wheel is greater than a predetermined threshold value of speed or angle.