What does ECM mean in a car?
1 Answers
ECM in a car stands for Engine Control Module, which has the function of continuously monitoring and controlling the normal operation of the engine. In modern engine management systems, the ECM is its core control component. It can provide the engine with the optimal air-fuel mixture ratio and the best ignition timing according to different engine conditions, ensuring that the engine always operates in the optimal state, and the engine's performance (power, economy, emissions) reaches its best. The automotive engine control module is one of the important automotive electronics. Early ECMs required three printed circuit boards, consisting of 12 LSIs and dozens of SSIs. Today, ECMs based on microcontrollers have been realized, requiring only one printed circuit board.