Session: AVT-03-01 Advances in Methods for Ground Vehicle Systems Design

Paper Number: 89063

89063 - Transient Simulation of Power Loss and Heat Transfer for a Dual Clutch Transmission 

During the operation of a Dual Clutch Transmission, a large amount of heat is generated due to the slip loss of the clutch, the meshing and paddling losses of gears, the friction loss of bearings. Most of the heat needs to be removed away by the lubricating oil except a less amount of heat dissipated into the surrounding environment through the convective heat exchange between the gearbox housing and the surrounding air. In order to predict the heat generation of each heat source and the temperature distribution of a dual clutch transmission so that the transmission lubrication system can be designed appropriately, a coupled model to simulate the bearing forces, power loss and heat transfer of the transmission was developed based on the theory of thermal network, and validated by comparing the simulation results of the total power loss and the temperature of some chosen test points under steady and transient operation conditions with the experimental results. The results show that the numerical total power loss is in good agreement with the test results under steady operation condition, and the variation trend of the numerical results under transient condition is same as the test results; the numerical temperature of each test point under steady and transient working conditions is in good agreement with the test results.

Presenting Author: Deng-Fang Ruan Chongqing University

Presenting Author Biography: No

Authors:

Deng-Fang Ruan Chongqing University
Tao Li Chongqing University
Yong Song chongqing university