What are the three main functions of a clutch?

[Laurie]

The three main functions of a clutch are to ensure smooth vehicle starting, enable smooth gear shifting, and prevent overload in the transmission system. The following are specific descriptions of clutch failure symptoms: 1. Clutch slipping: When starting the car in low gear, after releasing the clutch pedal, the car cannot start or has difficulty starting; when accelerating, the vehicle speed does not increase with the engine speed, resulting in a feeling of weak driving, and in severe cases, a burning smell or smoke may occur. 2. Incomplete clutch disengagement: Even when the clutch pedal is fully depressed, the power between the clutch driving and driven discs cannot be completely cut off, leading to difficulty in shifting gears, gear grinding, inability to stop, or clutch overheating. 3. Clutch shudder: The entire vehicle shakes when starting, especially when idling and gradually releasing the clutch pedal in low gear, resulting in continuous jerking.