Control method of preventing hybrid vehicle motor drive belt slippage bsg

The present invention relates to a control method for preventing a hybrid vehicle in the motor drive belt slip BSG: hybrid vehicle is in motion, according to a preset time period BSG detecting motor speed and the engine speed; determining whether the difference between the two is greater than a first predetermined speed value, if it is prevented from entering the boot for indicating the drive belt slip control mode flag; BSG detecting whether the motor speed has dropped to a second predetermined value, if motor torque is restricted BSG BSG to reduce negative torque of the motor; detecting whether the speed difference between the current has returned to less than a third predetermined value, if motor torque is continued to limit the BSG a predetermined period of time, then stop the motor torque limit BSG and closing flag, the third predetermined value is provided BSG the difference between the intrinsic speed of the motor and the engine and between the first predetermined value. The present invention can prevent BSG hybrid vehicle motor drive belt slipping phenomenon to enhance road safety performance.