Electronic knowledge popular science electronic throttle working principle

1, for vehicles with TCS (traction control system) or ESP (vehicle stability control system) technology, when TCS operates, not only the driving wheels brake, but also the throttle opening is controlled by the electronic throttle. Therefore, the electronic throttle control system ETCS must be installed.

2. The accelerator pedal position sensor transmits the information that the driver needs to accelerate or decelerate to the electronic accelerator control unit, and the control unit calculates the optimal accelerator opening according to this information, and the information of the accelerator pedal position sensor continuously corrects the accelerator opening to make the accelerator opening meet the ideal opening required by the driver. The electronic throttle control unit also communicates with the engine control unit and the automatic transmission control unit to accurately control the fuel injection time, shift point, transmission main oil pressure, etc.

3. Through ETCS, PCM can receive the data of the driver's operation of the accelerator pedal in the form of electronic signals, calculate the torque required by the driver according to these data, and then control the opening and closing of the accelerator according to the calculated torque.