What is the Function of Automotive Engine Sensors?
1 Answers
The function of automotive sensors is to detect engine operating conditions related to ignition timing and input this information into the electronic control unit (ECU) as the basis for calculating and controlling ignition timing. Common automotive sensors include: 1. Air Flow Sensor: Measures the amount of air drawn into the engine and converts it into an electrical signal provided to the ECU as a reference signal for fuel injection timing. 2. ABS Sensor: Monitors vehicle speed and provides wheel speed feedback to the braking system during emergency braking, allowing the system to control wheel rotation for optimal braking performance. 3. Throttle Position Sensor: Detects throttle opening angle through a linkage mechanism, measures the throttle angle voltage signal, and transmits it to the ECU as a reference signal for fuel injection volume and ignition timing correction. 4. Crankshaft Position Sensor: Detects top dead center signals, crankshaft angle signals, and engine speed signals, providing them to the ECU as reference signals for determining ignition timing, fuel injection timing, and operating sequence. 5. Camshaft Position Sensor: Detects camshaft position and angle, providing the ECU with crankshaft angle reference position signals as the main control signals for fuel injection timing and ignition timing control.
