There are many sensors in the car, each performing its duties and also cooperating with each other.The automobile sensor is the input device of the automobile computer system, which plays an important role in the operation of the automobile. It is used to detect the engine operating condition information related to the ignition advance angle, and convert the information into an electrical signal and input to the electronic control unit.Yuan, As the basis for calculating and controlling the ignition timing.
There are many car sensors, which can be divided into two categories: environmental monitoring and body perception: environmental monitoring sensors are used to detect and perceive the surrounding environment and are necessary for automatic driving; body perception sensors are used to obtain body information, such as tire pressure, Oil pressure, vehicle speed, etc. are the basic sensors necessary to maintain a normal, stable and safe driving of the car.
The main sensors on the car are: air flow sensor, ABS sensor, throttle position sensor, crankshaft position sensor, camshaft position sensor, coolant temperature sensor, oxygen sensor and oil pressure sensor.
Air flow sensor
The air flow sensor is used to measure the amount of air sucked by the engine, which is converted into an electrical signal and provided to the ECU as a reference signal for the fuel injection time;
ABSsensor
The ABS sensor is 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;
Throttle position sensor
Throttle position sensor is used to detect the opening of the throttle, and measure the voltage signal of the throttle opening angle through the linkage of the lever mechanism with the throttle, and transmit the signal to the ECU as the reference signal for the correction of the fuel injection amount and the ignition advance angle;
Crankshaft position sensor
The crankshaft position sensor is used to detect the top dead center signal, the crankshaft angle signal and the engine speed signal, and provide it to the ECU as a reference signal for determining the ignition timing, fuel injection timing and working sequence;
Camshaft position sensor
The camshaft position sensor detects the camshaft position and rotation angle, and provides the ECU crankshaft rotation angle reference position signal as the main control signal for fuel injection timing control and ignition timing control;
Oxygen Sensor
The oxygen sensor is used to detect the oxygen content in the engine exhaust, to determine whether the gasoline and air are completely combusted, and to perform closed-loop control of the fuel injection;
Oil Pressure Sensor
The oil pressure sensor is used to detect the oil pressure and send out a warning signal when the pressure is not enough.
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