Electric automobile double-motor driving system and power coupling comprehensive control method thereof

The invention discloses an electric automobile double-motor driving system and a power coupling comprehensive control method thereof. The electric automobile double-motor driving system is adopted, through a power coupling mode of a planetary gear mechanism, torque and rotational speed coupling under different working conditions of the electric automobile driving system is achieved, the double-motor driving system has a power-split type transmission regulating function capable of realizing continuous speed regulation and torque regulation, working states of electric automobile motors can be effectively adjusted, the motor efficiency is improved, according to the power coupling comprehensive control method, a working mode is matched under the condition that a demand rotating speed and torque are certain, an economy control strategy is established, rotating speeds and torque of the double motors are distributed, the double motors can work in a high energy efficiency state, and a comprehensive shifting control s