The wires of the electronic throttle are respectively

1, positive pole of motor

2. Motor negative pole

3. Position sensor power supply

4. The position sensor is grounded

5. Position sensor signal 1

6. Position sensor signal 2

The electronic throttle system includes:

1. Accelerator pedal module with accelerator pedal position sensor-used to determine the pedal position and transmit the pedal position signal to the control unit.

2. Engine Control Unit (ECU)- receives the signal from the pedal position sensor and calculates the required power according to the input voltage signal. According to other torque signals such as sudden acceleration, air conditioning and automatic transmission start, the actual throttle opening is calculated. It also monitors the throttle system.

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

4. Throttle fault light (EPC light on Volkswagen instrument)-provides the driver with throttle fault information.

5. Sensors and actuator sensors: accelerator pedal module with accelerator pedal sensors G79 and G 185, G 187 and G 188 with throttle opening sensors and throttle controller J338.

6. Actuator: G 186 and G338, K 132c (marking gear shifter, equivalent to oil float) control system with throttle drive device determines the pedal position according to two signals.

Extended data

Working principle:

The driver operates the accelerator pedal, and the accelerator pedal position sensor generates the corresponding voltage signal and inputs it to the throttle control unit. The control unit first filters the input signal to eliminate the influence of environmental noise.

Then, according to the current working mode, pedal movement and change rate, the driver's intention is analyzed, the basic demand for engine torque is calculated, and the corresponding basic expected value of throttle opening is obtained.

Then it communicates with the vehicle control unit through CAN bus to obtain other working conditions information and various sensor signals, such as engine speed, gear position, throttle position, air conditioning energy consumption, etc. So as to calculate all the torque required by the vehicle, and obtain the optimal throttle opening by compensating the expected throttle angle.

And send the corresponding voltage signal to the drive circuit module to drive the control motor to make the throttle valve reach the optimal opening position. The throttle position sensor feeds back the throttle opening signal to the throttle control unit to form closed-loop position control.

Baidu encyclopedia-electronic throttle