Control method of electric field vehicle driven by permanent magnet synchronous motor

The invention discloses a control method of an electric field vehicle driven by a permanent magnet synchronous motor. The method comprises the following steps: firstly, a motor controller is started, the permanent magnet synchronous motor is powered on, a master processor is initialized, and the AD sampling interruption is activated; secondly, the master processor obtains the position and speed information of the rotor of the permanent magnet synchronous motor acquired by a sensor; thirdly, the master controller performs comparison calculation of the rotating speed and the input reference speed of an accelerator pedal collected by the sensor, so as to obtain the speed deviation and the deviation rate; fourthly, a speed segmented PID control unit selects the corresponding control parameter according to the speed deviation and the deviation rate to obtain a reference current value to be adjusted; and fifthly, a current PID regulator compares the collected current value with the reference current value, and adju