Model referenced adaptive control to compensate slip-stick transition during clutch engagement
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...
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Veröffentlicht in: | International journal of automotive technology 2011, 12(6), , pp.913-920 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | 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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ISSN: | 1229-9138 1976-3832 |
DOI: | 10.1007/s12239-011-0104-y |