Engine Electronic Control System

1. System composition

The engine control system consists of three parts: sensor, controller and actuator. Sensors are components that sense information and provide the controller with relevant information such as vehicle operating conditions and engine conditions. The engine controller is the engine control module (ECM), which can receive information from sensors and store relevant information, and issue corresponding control commands to the actuators after calculation and analysis. The actuator is the executive element, and its function is to execute the instructions of the controller, so as to achieve the control goal.

2. Control function

The automobile engine control system is a comprehensive control system with various control functions, and the fuel injection control and ignition control are the main functions of the engine control system, and the intake control, emission control, fault self-diagnosis and failure protection are supplemented.

3. Control method

The control methods of the engine control system mainly include open-loop control and closed-loop control.