Working principle of electronic throttle control system

The principle of the electronic throttle controller is as follows: 1, the throttle pedal position sensor transmits the information that the driver needs to accelerate or decelerate to the throttle electronic control unit EC, and calculates the corresponding optimal throttle position according to the obtained information, and sends a control signal to the throttle actuator, which drives the throttle to the calculated optimal throttle opening position; 2. By communicating with other electronic control units (such as engine electronic control unit, automatic transmission electronic control unit, etc.). ), EC constantly corrects the optimal position of the throttle according to the information obtained from the throttle position sensor, engine speed sensor and vehicle speed sensor, so that the throttle opening reaches the ideal position required by the driver; 3. The modification of electronic throttle is mainly to replace the stepping motor in the throttle actuator to make it move faster.