What is the working principle of the throttle valve?

[DelXavier]

Throttle valve working principle: The throttle valve is a controllable valve that regulates air intake into the engine. After entering the intake pipe, the air mixes with gasoline to form a combustible mixture, which then burns to generate power. The accelerator pedal position sensor transmits the driver's acceleration or deceleration demands to the throttle electronic control unit (ECU). The ECU calculates the corresponding throttle position based on this information and sends control signals to the throttle actuator, which adjusts the throttle to the computed opening position. The ECU communicates with other electronic control units (such as the engine ECU, automatic transmission ECU, etc.), continuously correcting the throttle position using data from the throttle position sensor, engine speed sensor, and vehicle speed sensor, ensuring the throttle opening reaches the optimal position required by the driver.