What are the sensors used in cars

Imagine driving your beloved car through busy city streets or galloping on vast highways, where the vehicle can automatically adapt to road conditions, avoid obstacles, and maintain optimal driving conditions. Behind all of this is the precise perception and rapid response of driving sensors. Sensors, this seemingly insignificant small component, possess the "magic" to change the future of automobiles. They provide key information for intelligent decision-making of cars by capturing various data during vehicle operation, making driving easier, safer, and more efficient.

Types and functions of automotive sensors

What are the automotive sensors
Temperature sensor: such as a water temperature sensor, it directly detects the working temperature of the coolant to ensure that the engine operates at the appropriate temperature. When the water temperature is too high or too low, the sensor will send a signal to the ECU (engine control unit) to adjust the working status of the cooling system in a timely manner.
Oxygen sensor: An oxygen sensor is an important device for monitoring the oxygen content in engine exhaust gases. By detecting the oxygen content during the exhaust period, the oxygen sensor can determine whether the fuel is burning normally and provide important data for the ECU to control the air-fuel ratio of the engine. This is of great significance for improving fuel economy and reducing emissions and pollution
Pressure sensors: including intake pressure sensors and oil pressure sensors. The intake pressure sensor measures the absolute pressure in the intake manifold based on the load state of the engine, and converts it into an electrical signal to send to the ECU as the basis for determining the fuel injection quantity. The oil pressure sensor is used to detect the amount of oil inside the engine, ensuring that the engine receives sufficient lubrication.
Position sensors: such as crankshaft position sensor and throttle position sensor. The crankshaft position sensor detects the top dead center signal, crankshaft angle signal, and speed signal to enable the ECU to issue the optimal ignition timing command according to the ignition sequence of the cylinder. The throttle position sensor detects the opening of the throttle valve plate to control acceleration or deceleration
The fuel injection quantity during this period. Flow sensor: such as an air flow sensor, it converts the inhaled air into an electrical signal and sends it to the ECU as one of the basic signals determining the fuel injection quantity. This is crucial to ensure that the engine can achieve the optimal mixture concentration under different operating conditions.