What is the principle of an automobile throttle?

2 Answers
LeLuna
07/29/25 3:53am
Here are the principles of two types of throttles: 1. Traditional throttle. The control mechanism operates via a cable (flexible steel wire) or linkage rod, with one end connected to the accelerator pedal and the other end connected to the throttle linkage plate. 2. Electronic throttle. Through the throttle position sensor, based on the engine's required energy, it controls the throttle opening angle to regulate the amount of air intake. The following is an introduction to the throttle: The throttle is a valve that controls the air entering the engine, connected above to the air filter and below to the engine block. Air enters the intake pipe, mixes with gasoline to form a combustible mixture, which then burns to perform work.
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Parker
08/12/25 7:41am
The principle of the car throttle is actually quite simple. As a veteran driver with over ten years of experience, I find it most intuitive during daily driving. When I press the accelerator pedal, the throttle opens a valve to allow more air into the engine. The more air there is, the more fully the fuel can mix and burn, generating power to move the car forward. Older models use a mechanical cable linkage, where the throttle opens proportionally to how hard you press the pedal. Nowadays, most new cars use electronic signals for control, making the response faster and smarter, improving fuel efficiency and smoothness. The ECU adjusts the valve opening based on the throttle position and various sensor data to ensure smooth acceleration without stalling or jerking. This small component has a huge impact on the driving experience. If carbon buildup is excessive, the restricted airflow can make the car feel sluggish, so regular maintenance and cleaning are necessary. In essence, it works by controlling the airflow to match the engine's needs, giving you precise control over your vehicle.
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