CONTROL METHOD AND SYSTEM FOR HYBRID POWER SYSTEM

A control method for a hybrid power system. The method is applied to a hybrid power system composed of an engine () and a motor (). A motor stator () of the motor () is connected to a driving shaft () of a motor vehicle by means of a transmission mechanism () such that, when rotated, the driving shaft () drives the motor stator () to rotate; the motor () is used to determine output torque according to the rotating speed of the motor and transmit same to the driving shaft (); the rotating speed of the motor is equal to the difference between the rotating speed of the motor rotor () and the rotating speed of the motor stator (). The method comprises, according to operating parameters of the hybrid power system and operating parameters of the motor vehicle, controlling a motor controller to provide a drive signal to the motor stator such that the operating parameters of the motor meet a first preset formula, thereby avoiding the possibility of the motor operating at zero rotating speed or within a low rotating speed range under various operating conditions, avoiding the occurrence of problems with the motor such as efficiency and torque response being poor under such operating states, and improving user experience. Also provided is a control system for achieving a control method for a hybrid power system.