System composition and function of electronic throttle?

1) accelerator pedal module with accelerator pedal position sensor-determines the pedal position and transmits the pedal position signal to the control unit.

2) Engine control unit-receives the signal from the pedal sensor, calculates the required power, calculates the actual throttle opening according to other torque signals such as sudden acceleration, air conditioning and automatic gearbox start, and controls the throttle motor to adjust the opening. It also monitors the throttle system.

3) Throttle control unit-controls the required air volume, adjusts the throttle opening according to the signal provided by the control system, and feeds back the throttle position signal.

4) Throttle fault light (EPC light on the instrument)-Prompts the driver of throttle fault information.

5) Sensors and actuators

Sensors: accelerator pedal module with accelerator pedal sensors G79 and G 185, and accelerator controller J338 with throttle angle sensors G 187 and G188; Clutch pedal switch F36, brake pedal switch F47, brake light switch f.

Actuator: J338 with throttle drive G 186 and throttle fault light K 132.