Gearshift control for dry dual-clutch transmissions
نویسندگان
چکیده
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
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