What is the role of the car camshaft sensor

Automotive camshaft sensor

　The camshaft position sensor is also called the synchronization signal sensor. It is a cylinder discriminating and positioning device. It inputs the camshaft position signal to the ECU, which is the main control signal for ignition control.

The function of the camshaft sensor is to collect the position signal of the valve camshaft and input it into the ECU so that the ECU can identify the top dead center of cylinder compression, so as to perform sequential fuel injection control, ignition timing control and deflagration control. The camshaft position sensor can recognize that a certain cylinder piston is about to reach the top dead center, so it is called a cylinder recognition sensor.

What is the role of the camshaft sensor

The camshaft position sensor is also called a synchronization signal sensor. There are two types of crankshaft position sensor and camshaft position sensor. In order to distinguish the camshaft position sensor from the crankshaft position sensor, the camshaft position sensor is generally represented by CIS. The camshaft position signal is also used to identify the moment of the first ignition when the engine is started.

The camshaft sensor can control the ignition system in time, and the camshaft sensor can control the ignition command according to the actual situation of the cylinder, so that it will be safer when using the car. The camshaft sensor can serve as an emergency ignition. Sometimes when the crankshaft sensor of a car fails, the camshaft sensor at this time will play a role, and emergency ignition can be carried out.