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What Are the Main Functions of Automotive Sensors?

1 Answers

JesseAnn

07/24/25 11:40pm

Automotive sensors serve many primary functions. Oxygen Sensor: The function of this sensor is to measure whether there is excess oxygen in the exhaust gases after engine combustion, i.e., the oxygen content, and convert this information into a voltage signal sent to the engine computer. This enables the engine to achieve closed-loop control targeted at the excess air factor. Wheel Speed Sensor: The wheel speed sensor is used to measure the rotational speed of the vehicle's wheels. Common types of wheel speed sensors include: magnetic wheel speed sensors and Hall-effect wheel speed sensors. Coolant Temperature Sensor: The function of the coolant temperature sensor is relatively straightforward—it utilizes changes in its internal resistance to alter the current passing through it, thereby driving the changes in the coolant temperature gauge.

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