Self-Tuning PID Design for Slip Control of Wedge Clutches

Paper #:
  • 2017-01-1112

Published:
  • 2017-03-28
DOI:
  • 10.4271/2017-01-1112
Citation:
yao, J., Chen, L., Zhao Jr, D., Lee, C. et al., "Self-Tuning PID Design for Slip Control of Wedge Clutches," SAE Technical Paper 2017-01-1112, 2017, doi:10.4271/2017-01-1112.
Pages:
7
Abstract:
The wedge clutch takes advantages of small actuation force/torque, space-saving and energy-saving. However, big challenge arises from the varying self-reinforced ratio due to the varying friction coefficient inevitably affected by temperature and wear. In order to improve the smoothness and synchronization time of the slipping process of the wedge clutch, this paper proposes a self-tuning PID controller based on Lyapunov principle. A new Lyapunov function is developed for the wedge clutch system. Simulation results show that the self-tuning PID obtains much less error than the conventional PID with fixed gains. Moreover, the self-tuning PID is more adaptable to the variation of the friction coefficient for the error is about 1/5 of the conventional PID.
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