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090503 Gearshift control for dry dual-clutch (090503干式双离合变速控制).pdf

发布:2017-07-24约7.12万字共10页下载文档
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WSEAS TRANSACTIONS on SYSTEMS Chunsheng Ni, Tongli Lu, Jianwu Zhang Gearshift control for dry dual-clutch transmissions Chunsheng Ni, Tongli Lu, Jianwu Zhang School of Mechanical Engineering State Key Laboratory for Mechanical System and Vibration Shanghai Jiao Tong University 800 Dong Chuan Road, Shanghai, 200240 China chunsheng_ni@sjtu.edu.cn Abstract: - In this paper a smooth control algorithm for gear shifting is proposed for improving longitudinal dynamic performance during dry dual-clutch engagements while shifting up or down takes place based on measurements of engine speed and clutch speed, and on estimation of the dual-clutch engaging torque. Simulation effort is made by Matlab/Simulink for transient responses of the overall propulsion system with the dry dual-clutch transmission (DDCT) in consideration of twin clutch engagement rules for gear shifting. As a numerical example, the present control algorithm is used for the DDCT equipped vehicle to simulate overlapping shifting behaviors. By the numerical it is shown that the DDCT vehicle possesses of much better longitudinal dynamic performance in shifting by imposing proper control of engine and the dual-clutch. Key-Words: - Dry dual-clutch transmission; Engaging force; Smooth control algorithm; Clutch control; Engine control; Shifting behaviors 1 Introduction engagement forces is accounted for in the control
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