What are the types of throttle position sensors?

[QuinnRose]

1. Hall-effect throttle position sensor: It mainly consists of a Hall element and a magnet. The magnet is mounted on the throttle shaft and can rotate around the Hall element. When the throttle opening changes, the magnet rotates accordingly, altering its relative position to the Hall element, which is surrounded by a magnetic yoke. The Hall integrated circuit converts the changes in magnetic flux into electrical signals and outputs them to the ECM as throttle position signals. 2. Dual variable resistance throttle position sensor: In this type, two sensors are usually installed together. If one sensor fails, it can be promptly identified, enhancing system reliability. Based on the changing relationship of the output signals from the two sensors, there are two types: reverse-phase and same-phase. The same-phase type can be further divided into linear changes with the same slope and linear changes with different slopes. 3. Sliding resistance throttle position sensor: Also known as a linear output throttle position sensor, variable resistance throttle position sensor, or potentiometer-type throttle position sensor. Currently, dual variable resistance throttle position sensors are widely used in automobiles.