Control of a twin clutch transmission for smooth gearshifts

Behrooz Mashadi, S.M. Mansourian, Amir H. Kakaee and Ali Nassiri Toosi

Mathematical and Computer Modelling of Dynamical Systems, 2015, vol. 21, issue 4, 389-409

Abstract: The flow of torque in a twin clutch transmission is investigated and the different phases of torque transfer between the two clutches are studied. In order to prevent torque backlash and intense wear in dry clutch plates, a proper clamp force regulation is used. A full vehicle simulation that includes vehicle and powertrain components is set up. A Fuzzy logic control system is found suitable for clamp force and engine throttle controls. For upshift and downshift cases, the design of controllers for the gearshift process is carried out by defining proper membership functions and Fuzzy rules using Matlab/SimulinkTM software. The effectiveness of the control system is investigated by simulating two upshift and downshift cases. Results indicate that the control system is successful in regulating the clutch clamp forces and the engine throttle in such a way that a smooth torque flow in the transmission is achieved in all cases.

Date: 2015
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DOI: 10.1080/13873954.2015.1033430

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