The wear characteristics of wet clutch in the DCT vehicle during the launching process

In order to investigate the wear characteristics of wet clutch during the vehicle launching process, the experimental investigations and the dynamic analysis are conducted in the study. Firstly, the wet pin-on-disc experiment is designed to explore the wear behaviours of the wet friction pair. Based on the experimental results under various conditions, the wear amount is measured by the multielement oil analysis spectrometer and the corresponding wear coefficient is deduced according to the Archard laws. After that, the dynamic model of the Double Clutch Transmission (DCT) vehicle is established to study the wear condition of the wet clutch during the vehicle launching process. The experimental and simulation results indicate that, the increase of the slipping speed, the contact pressure and the temperature leads to the increase of the wear amount, while, for the wear coefficient, the slipping speed has little influence. During the vehicle launching process, the driver's gentle operation with light vehicle load will reduce the wear amount of the wet clutch and prolong its service life.