What are the sensors in a car?
2 Answers
Car sensors include the following: knock sensor, water temperature sensor, intake air temperature sensor, air flow sensor, wheel speed sensor, oxygen sensor, camshaft position sensor, crankshaft position sensor, etc. Here is some related information: 1. The normal operation of a car depends on sensors. A car is not only a mechanical system but also contains many complex electronic systems and sensors. Without these sensors and electronic systems, the car cannot function properly. 2. The car's engine has an ECU, which can collect data from various sensors. After processing, the ECU can control the engine's operation through control mechanisms. Without sensors and the ECU, the engine cannot operate normally. 3. Cars also have many electronic driver assistance systems, such as ABS (Anti-lock Braking System), EBD (Electronic Brakeforce Distribution), ESP (Electronic Stability Program), etc. These systems rely on sensors to function properly. Most car faults are caused by electronic systems and sensors. It is normal for these electronic systems to malfunction over time, as their reliability is not as high as that of mechanical systems.
I've noticed while driving that there are many small devices in the car monitoring things in real time, making the vehicle smarter. For example, the oxygen sensor is located in the exhaust pipe, detecting oxygen levels in the exhaust to help the engine adjust fuel consumption and emissions; the air flow sensor is in the intake tract, measuring air intake to ensure complete combustion; the wheel speed sensor is on the wheels, used for the anti-lock braking system (ABS) to prevent skidding during braking; the throttle position sensor monitors the throttle position to control acceleration response; and the temperature sensor in the air conditioning system automatically adjusts airflow for comfort. Some are hidden deeper, like the knock sensor that prevents engine knock damage. When these fail, the malfunction light comes on, affecting driving safety. Last time my AC wasn't cooling, it was a sensor issue—after inspection, I found out just replacing a small part fixed it.
