What does Volkswagen epc mean?

Epc is the full name of engine electronic power control system, which is called electronic throttle by many people. EPC indicator light is very common among the public, indicating that the vehicle is out of order.

EPC indicator light is very common among the public. After the key door is opened, the vehicle starts self-inspection, and the EPC indicator light will light up for a few seconds and then go out. If the vehicle does not go out after starting, it means that the mechanical and electronic system of the vehicle has failed. Generally speaking, there are two possibilities for EPC lights to turn on. First of all, the throttle is dirty and needs cleaning. In another case, the brake light is not on, so it is necessary to check the brake switch and wiring. Because of the oil problem, the EPC fault light will also light up.

EPC (Electronic Power Control) is the full name of engine electronic power control system, and it is also called ETC (Electronic Throttle Control) by many people. The system consists of some sensors, controllers and other components. When the sensor fails or senses an abnormal situation, the control system will take corresponding measures according to the set program.

In the past, the driver operated the accelerator pedal according to the power demand of the engine, and the accelerator pedal controlled the accelerator opening through the steel wire rope. In EPC system, the original accelerator cable is cancelled and replaced by the sensor of pedal device. The engine control unit calculates the optimal target throttle opening according to the position data fed back by the pedal sensor, and sends a signal to the throttle drive motor to make the throttle rotate to this angle.

This method is superior to the cable acceleration control, because the electronic throttle knows the power demand of the engine by calculating and analyzing the input signal from the accelerator pedal position, and converts this information into the torque of the engine through various actuators. Due to safety, fuel consumption and other reasons, when the engine speed needs to be adjusted, the engine control unit can adjust the throttle position without stepping on the throttle. The advantage of this structure is that the control unit can limit the position of the throttle valve according to various requirements.