期刊
INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY
卷 12, 期 6, 页码 913-920出版社
KOREAN SOC AUTOMOTIVE ENGINEERS
DOI: 10.1007/s12239-011-0104-y
关键词
Popov hyper-stability; Model reference; Adaptive control; Clutch engagement; Slip-stick transition
资金
- Doctoral Foundation of China [20070248115]
Clutches are widely used in various vehicle powertrains. The engagement process of a friction clutch has three phases, i.e., open, slipping, and sticking. Transitions between different phases introduce a discontinuity to the powertrain dynamics, which has been neglected in previous research. A model referenced adaptive controller (MRAC), based on Popov hyper-stability criterion, is designed to compensate the discontinuity. MRAC adjusts the frictional torque along with the errors of the state variables compared with those of a referenced model. The designed MRAC is applied to a clutch in a bus. Simulation and experimental results under fast and slow startup cases show that MRAC can simultaneously reduce vehicle jerk and frictional dissipation when compared with the conventional controller.
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