Automobile electric tail gate controller

The invention discloses an automobile electric tail gate controller which comprises a micro-control unit, a fuzzy controller, a PID (Proportion Integration Differentiation) controller and a PWM (Pulse Width Modulation) device, the speed at the current moment is input into the micro-control unit, the current speed error and the speed error change rate are calculated and input into the fuzzy controller and the PID controller, and the proportional element parameter increment, the integral element parameter increment and the differential element parameter increment of the PID controller are obtained through calculation of the fuzzy controller and input into the PID controller. The duty ratio at the current moment is obtained through calculation of the PID controller; and inputting the duty ratio at the current moment into a PWM (Pulse Width Modulation) device to obtain a target voltage to control a stay bar motor so as to adjust the speed of the tail gate. The control parameters are automatically generated throug