You Know How Many Kinds Of Auto Sensors In A Car?And What is the role of the sensor？
Air flow sensor,
The Air Flow Sensor detects the intake air volume of the engine and controls the fuel injection volume
2. Air Intake Pressure Sensor.
The intake pressure sensor detects the vacuum degree of the intake manifold and determines the amount of intake air. The intake pressure sensor, as the name implies, senses a series of resistance and pressure changes with the different speed loads of the engine, and converts them into voltage signals for the ECU. Correct the fuel injection quantity and ignition timing angle. It is generally installed on the side of the throttle valve. If it fails, it will cause problems such as difficulty in ignition, unstable idle speed, and weak acceleration.
3. Throttle valve position sensor, detects the throttle valve opening, and controls the fuel injection amount during acceleration
4. Camshaft position sensor, detects the camshaft position, determines the top dead center of the compression stroke of a cylinder, and controls the sequential fuel injection and ignition
5. Crankshaft position sensor, detects crankshaft position and engine speed, controls fuel injection and ignition
6. Oxygen sensor, detects the oxygen content in the exhaust gas to judge the rich and lean mixture, and corrects the air-fuel ratio. When the oxygen sensor fails, the ECU cannot obtain this information, and it does not know whether the amount of gasoline injected is correct, and the inappropriate air-fuel ratio of oil and gas will reduce the engine power and increase the emission pollution;
7. Water temperature sensor, detects the engine water temperature, corrects the ignition time and fuel injection quantity
When the water temperature sensor fails, the temperature signal of the warm car is often displayed when the cold car is started. The ECU cannot get the correct signal and can only supply the engine with a thinner mixture. The problem of unstable idling operation and insufficient acceleration power;
8. Wheel speed sensor: It mainly collects the speed of the car to determine whether the car is slipping. Therefore, there is a sensor that collects the wheel speed of the car to complete this work. It is generally installed on the hub of each wheel. Once the sensor is damaged, the ABS will fail;
9.Knock sensor, detects whether the engine knocks, delays the ignition time, and eliminates the knock
10. Electronic accelerator pedal position sensor: When the sensor fails, the ECU cannot measure the accelerator position signal, and cannot obtain the correct position of the accelerator pedal, so the phenomenon of weak engine acceleration will occur, or even the engine cannot be accelerated;
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