What are the differences between the clutch pedal, brake pedal, and accelerator pedal?

1 Answers
GiaLynn
07/29/25 6:05pm
The clutch pedal, brake pedal, and accelerator pedal differ in their working principles and functions. Different working principles: The clutch's function is to separate the power during transmission; the brake pedal works by fixing a wheel or disc on the machine's high-speed shaft and installing corresponding brake shoes, bands, or discs on the machine base, generating braking torque under external force; the accelerator pedal controls the engine throttle opening by adjusting the pedal's depression amount, thereby regulating the air intake, with the computer controlling the fuel quantity to manage the engine's speed. Different functions: The clutch pedal, through proper operation by the driver, engages and disengages the front and rear parts of the clutch (engine and transmission), preventing gear grinding; the brake pedal is the operating device for the service brake, used to control vehicle deceleration and stopping; the accelerator pedal, also known as the throttle pedal, primarily controls the engine throttle opening to regulate the engine's power output; the accelerator pedal can identify its position and the engine power demanded by the driver, which is the most critical input parameter for the engine management system to calculate the specified throttle position. The engine DME control unit, considering other factors, can thereby determine the required electronic valve control system position or throttle position.
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