What does APS in a car mean?

[DelIsaac]

APS in a car refers to the Accelerator Pedal Position Sensor. The function of APS is that when the driver presses the accelerator pedal, the APS generates corresponding voltage signals and transmits them to the throttle control unit, thereby controlling the opening and closing state of the throttle. The electronic throttle system in a car consists of the engine, speed sensor, throttle position sensor, throttle actuator, throttle, accelerator pedal position sensor, vehicle speed sensor, transmission, accelerator pedal, and ECU. The electronic throttle enables precise control of the throttle opening, while also improving the car's fuel economy and reducing pollutant emissions.