How does the knock sensor work #KnockSensor #CarSensors #automobile #CarMaintenance #VehicleSystem

The knock sensor is a piezoelectric sensor, usually a small crystal housed in a metal shell. When abnormal combustion, or ‘knock,’ happens, it creates high-frequency vibrations in the engine block. The crystal inside the sensor converts this vibration into an electrical signal. The ECU analyzes the frequency and strength of this signal. If knock is detected, the ECU retards ignition timing or adjusts fuel delivery to eliminate knocking, ensuring smooth combustion and protecting the engine from damage.
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Видео How does the knock sensor work #KnockSensor #CarSensors #automobile #CarMaintenance #VehicleSystem канала Car Cast LK