The location of the top ten sensors in the car, the location map of all the sensors in the car

Automobile sensors are the input devices of automobile computer systems. They convert various operating conditions of the automobile, such as vehicle speed, temperature, tire pressure, oil pressure, engine operating conditions, etc., into electrical signals and send them to the automobile ECU for control The operation of various parts of the car so that the engine is in the best working condition. There are many car sensors, located in various parts of the car, the following are the top ten common sensors and their location map:

1. Air flow sensor

The air flow sensor is installed between the air filter and the intake hose to monitor the amount of air sucked in by the engine, which is converted into an electrical signal and provided to the ECU as a reference signal for fuel injection time;

2. ABS sensor

The ABS sensor is generally located at the position of the tire close to the bearing.Wheel hubThe outside of the bearing and the inner ring of the brake disc are used to monitor the speed of the vehicle. In the case of sudden braking, the speed of the wheel is fed back to the brake system, and the brake system controls the restrained rotation of the wheel to achieve the best braking effect;

3. Throttle position sensor

The throttle position sensor is installed on the throttle to detect the opening of the throttle.

4. Intake pressure sensor

The intake pressure sensor is generally installed on the intake manifold. According to the load state of the engine, the absolute pressure in the intake manifold is measured and converted into electrical signals and speed signals to be sent to the computer together to determine the basic fuel injection volume of the injector. Basis

5. Crankshaft position sensor

The crankshaft position sensor is generally installed on the side of the crankshaft pulley or sprocket. Some are installed on the front end of the camshaft, and some are installed on the distributor. It is used to detect the top dead center signal, the crank angle signal and the engine speed signal, and provide it to the ECU for determining the ignition. Reference signal for timing, fuel injection timing and working sequence;

6. Camshaft position sensor

The camshaft position sensor is installed close to the camshaft, and if there is a distributor, it is installed on the distributor. It provides the reference position signal of the crankshaft angle as the main control signal for fuel injection timing control and ignition timing control;

7. Knock sensor

The knock sensor is installed on the cylinder block to detect the knocking situation of the engine and provide it to the ECU to adjust the ignition advance angle according to the signal;

8. Oxygen sensor

The oxygen sensor is generally installed on the exhaust branch pipe to detect the oxygen content in the engine exhaust, to determine whether the gasoline and air are completely burned, and to perform closed-loop control of the fuel injection;

9. Coolant temperature sensor

The coolant temperature sensor is also called the water temperature sensor, which is generally installed in the engine block water jacket or coolant pipeline to detect the temperature of the coolant and provide engine temperature information to the ECU.

10. Oil pressure sensor

The oil pressure sensor is installed on the main oil passage of the engine block to detect the oil pressure and send out an alarm signal when the pressure is insufficient.