Energy feedback control method and control system for electric vehicle provided with multispeed transmission

The invention provides an energy feedback control method and a control system for an electric vehicle provided with a multispeed transmission. A brake pedal sensor, an acceleration pedal sensor, a vehicle speed sensor and a motor sensor transmit brake signals, acceleration signals, vehicle speed and motor output conditions to an energy feedback control device, the energy feedback control device judges whether energy is fed back or not according to received information, and the energy feedback control device feeds back the energy according to data in real-time communication with a motor controller, recovers the energy and stores the energy into an energy storage system through a conduction device if energy feedback is needed. The energy of the electric vehicle provided with the multispeed transmission is fed back according to different gears and different conditions of the vehicle, energy recovery rate is maximized, and an energy feedback device for the electric vehicle provided with the multispeed transmission is implemented without affecting vehicle comfort or adding a motor.