Abstract: In the engine management system based on the torque control, the opening angle of the accelerator pedal only reflects the driver’s requirement of the torque. And the engine management system calculates the driver’s torque request through the opening angle of the accelerator pedal. Based on the change regulation of the engine speed, a perfect model of an engine speed is created. When there is a large change of the torque requirement, the actual torque of the engine gradually changes at the driver’s requirement with the method of the filtering, which is to weaken the oscillation of the engine speed caused by the gap and flexible deformation of the power train, which will improve the driving performance. Reference for the optimization of the torque control is provided.