What Causes the Jerking and Abnormal Noise in Volkswagen's Dry Dual-Clutch Transmission?
1 Answers
Volkswagen's dry dual-clutch transmission may exhibit jerking and abnormal noise due to the following reasons: Low-speed driving: During low-speed driving, the dual-clutch transmission is prone to jerking. The primary reason is that the dual-clutch transmission lacks a torque converter and instead relies on friction plates to directly transmit torque to the drive shaft. While this design avoids the power loss associated with torque converters, the absence of the torque converter's buffering effect means that the two sets of clutch plates can create a noticeable impact sensation during gear shifts. Large rotational speed difference: During power transmission, the dual-clutch transmission operates in a state similar to a semi-engaged clutch. To minimize clutch plate wear, engineers design the clutch pressure plate and friction plates to engage as quickly as possible. If there is a significant difference between the engine output speed and the transmission output speed during this process, jerking can occur.