How does the electronic throttle adjust the idle speed?

The method of electronic throttle adjusting idle speed is: 1, loosen the throttle adjusting screw to make the engine reach the lowest stable speed; 2. Put the screwdriver on the idle screw, and when the engine is about to stall, slowly unscrew the idle screw with the screwdriver to make the engine run smoothly and reach a high speed; 3. Unscrew the throttle screw to reduce the engine speed from high speed to the minimum; 4. Unscrew the screw and increase the engine speed until the throttle opening becomes smaller and the throttle suddenly closes. The working principle of electronic accelerator is: 1, the driver manipulates the accelerator pedal, and the accelerator pedal position sensor generates the corresponding voltage signal, which is input to the accelerator control unit; 2. The control unit calculates the required torque and throttle angle, and sends corresponding voltage signals to the drive circuit module; 3. Drive the control motor to make the throttle valve reach a better opening position; 4. The throttle position sensor feeds back the throttle opening signal to the throttle control unit to form closed-loop position control.