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Reference Clutch Torque Trajectory Generation for Control of a Dual-clutch Transmission Using Control Allocation
FISITA2016/F2016-THBE-010

Authors

Kim, Sooyoung; Choi, Seibum - Korea Advanced Institute of Science and Technology, Republic of Korea
Oh, Jiwon - Hyundai Motors, Republic of Korea

Abstract

KEYWORDS – Dual-clutch transmission, Control allocation, Gearshift control, Reference clutch torque trajectory, Torque-based clutch control

ABSTRACT –
Clutch-to-clutch shift control should be carried out carefully in order to ensure a fast and comfortable gearshift. To achieve the high control performance, various studies have been conducted on torque-based control of DCTs. However, research on how to determine desired torque trajectories for control is still absent even though many papers dealt with feedback control of two clutches for a DCT to generate proper clutch torques. In this paper, a novel method for generating reference clutch torque trajectory for control of DCTs using optimization-based control allocation is proposed. Actually, the suggested method plays a role as the upper-level controller to determine desired torque trajectory of each clutch in the whole DCT control while the lower-level controller performs torque tracking control considering the dynamics of clutch actuators. The effectiveness of the method is verified through various simulations based on the proven dry DCT model.

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