METHOD AND DEVICE FOR RECYCLING ENERGY OF PURE ELECTRIC AUTOMOBILE

摘要

A method for recycling the energy of a pure electric automobile comprises: judging whether the following conditions are satisfied: a motor is in an operating state, a large battery is in a connected state, an accelerator pedal is released and the entire automobile has no fau and if the conditions are satisfied, providing corresponding braking torque according to a signal of a brake pedal and the rotation speed of the motor, to obtain a preset brake comfort level and energy recycling efficiency, otherwise, providing no braking torque. Correspondingly, a device for recycling energy is provided. Three operating modes are provided by comprehensively analyzing the rotation speed of the motor, the states of the accelerator pedal and the brake pedal, the connection state of the large battery and the failure state of the entire automobile so as to adapt to different working conditions of the pure electric automobile, thereby enhancing the energy recycling efficiency and the brake comfort level when the accelerator is released and the brake is stamped, and enhancing the safety and the reliability when the accelerator is released and the brake is stamped.