What Causes the Abnormal Noise in Dual-Clutch Transmissions?

[RafaelMarie]

Abnormal noise primarily stems from the sound generated by the shift fork operation during gear changes in the transmission. To reduce this noise, improvements in the transmission's NVH (Noise, Vibration, and Harshness) performance are necessary, along with coordinated optimization in the vehicle's overall NVH development. Therefore, some level of abnormal noise is inherent in transmissions. Additional relevant information is as follows: 1. Note: Currently, the jerking issue in dual-clutch transmissions cannot be entirely avoided, but it can be largely mitigated through proper driving techniques, such as smoother throttle control with the right foot and mutual adaptation between the driver and the vehicle. 2. Advantages: Dual-clutch transmissions offer lower fuel consumption compared to traditional transmissions and provide nearly seamless gear shifts, giving them a significant edge over both automatic and manual transmissions.