What is the function of a car throttle position sensor?

[McMaverick]

The main function of the car throttle position sensor is to detect whether the engine is in idle state or load state, and whether it is in acceleration or deceleration state. Detailed information is as follows: 1. The rotating shaft of the resistor is linked with the throttle, and it has two contacts: the full-open contact and the idle contact. When the throttle is in the idle position, the idle contact closes, and the idle signal is output to the computer; 2. When the throttle is in another position, the idle contact opens, outputting voltage signals corresponding to different rotation angles of the throttle. The computer identifies the engine load based on the signal voltage value; 3. The computer recognizes whether the working condition is acceleration or deceleration based on the change of the signal voltage over a certain period of time. The computer adjusts the fuel injection amount or performs fuel cut-off control based on these working condition information.