What is the Principle of a Car Clutch?

2 Answers
SanJude
09/01/25 5:32am
The clutch primarily transmits the torque generated by the engine to the driven plate through the friction between the flywheel, pressure plate, and the contact surface of the driven plate. When the driver depresses the clutch pedal, the diaphragm spring's large end moves the pressure plate backward via mechanical transmission, separating the driven part from the driving part. Below is a detailed introduction to the car clutch: 1. Overview: The car clutch is located inside the flywheel housing between the engine and the transmission. The clutch assembly is secured to the rear plane of the flywheel with screws, and the output shaft of the clutch is the input shaft of the transmission. 2. Function: While driving, the driver can press or release the clutch pedal as needed to temporarily disconnect or gradually engage the engine with the transmission, thereby cutting off or transmitting the engine's power to the transmission.
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DeEverly
09/13/25 8:13am
As someone who has been driving for decades, the working principle of the clutch is simply to connect or disconnect the engine's power. When you press the clutch pedal, it activates a mechanism that releases the pressure plate, causing the clutch disc to no longer press tightly against the engine flywheel and the transmission input shaft. This disconnects the power, leaving the car's wheels unaffected. When you release the pedal, the pressure plate clamps the clutch disc and flywheel again, transmitting the power to drive the car forward. This process allows for smooth gear shifts and prevents gear-shifting impacts from damaging the transmission. I remember when I first started driving, many beginners weren't used to it and often kept the clutch pressed for too long, resulting in burnt clutch discs—replacing them was expensive. It's important to develop good driving habits: operate the clutch quickly when starting or shifting gears, avoid prolonged half-clutch engagement, and minimize wear. The clutch is like the car's cushion belt; maintaining it well ensures trouble-free driving for hundreds of thousands of kilometers.
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