Electric automobile motor target torque control method based on multiple parameters and multiple MAPs

The invention discloses an electric automobile motor target torque control method based on multiple parameters and multiple MAPs. The method specifically comprises the steps that a vehicle controller of an electric automobile collects accelerator pedal position signals, acceleration pedal change rate signals, battery SOC signals, vehicle speed signals and brake pedal position signals and judges vehicle control strategy according to the operation intention of a driver and vehicle condition; the vehicle controller collects motor temperature signals and inquires a torque MAP of two adjacent temperature points of an actual motor temperature point under the different vehicle driving control strategies according to the current temperature of a motor so as to obtain motor torques corresponding to two temperature points under the working condition, and a Lagrangian linear interpolation method is utilized for obtaining an initial motor target torque; the vehicle controller collects current state parameters of a power battery, and adjusts the initial motor torque so as to obtain the finial motor target torque according to the current state of the power battery. According to the invention, the motor torque output can be precisely controlled, and the vehicle travelling distance and the vehicle driving performance are improved.