What causes clutch slippage in dry dual-clutch transmissions during rapid acceleration?
2 Answers
The reasons for clutch slippage in dry dual-clutch transmissions during rapid acceleration are as follows: 1. Insufficient clutch free travel: The release bearing presses against the inner end of the release lever, causing the pressure plate to be in a semi-engaged state, resulting in slippage during power transmission. 2. Improper driver operation: Delayed gear shifting when going uphill, only shifting to a lower gear when the engine is about to stall. Coasting with the engine off to save fuel, and forcing the engine to start again, which increases wear on the clutch friction plates. 3. Broken clutch pressure plate spring: Greatly reduces the ability to transmit engine torque, leading to slippage.
I just started driving a dry dual-clutch car not long ago, and the clutch slipping during sudden acceleration is really scary. The reasons are usually severe wear on the clutch plates or hydraulic pump oil leakage. When you stomp on the accelerator, the torque suddenly increases. If the clutch is aging or the cooling can't keep up, it loses grip, the car won't move, and it makes a screeching noise. This issue is more common in dry designs because there's no lubricating oil to help cool things down. A sudden surge causes heat buildup in the engine, and the friction material fails. I need to remind myself not to always go for sudden acceleration, drive more gently in daily situations, and if any issues arise, pull over to check the fluids or schedule a scan at the dealership. Safety first—don't trade speed for your life.
