Optimal control of dry clutch engagement based on the driver’s starting intentions

This paper explores the association between the driver’s starting intentions and control of dry clutch engagement during the vehicle launch in order to develop an intelligent automated mechanical transmission system. The optimal engagement laws are deduced by finding a compromise between the frictio...

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Bibliographic Details
Published in:Proceedings of the Institution of Mechanical Engineers. Part D, Journal of automobile engineering Journal of automobile engineering, 2012-08, Vol.226 (8), p.1048-1057
Main Authors: Lu, Tongli, Dai, Feng, Zhang, Jianwu, Wu, Mingxiang
Format: Article
Language:English
Subjects:
Accelerators
Aerospace engines
Applied sciences
Automobiles
Automotive engineering
Automotive parts
Clutches
Controllers
Drives
Drying
Engines and turbines
Exact sciences and technology
Fuzzy logic
Intelligent systems
Internal combustion engines: gazoline engine, diesel engines, etc
Mechanical engineering
Mechanical engineering. Machine design
Optimal control
Optimization
Shafts, couplings, clutches, brakes
Transmission components
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Summary:This paper explores the association between the driver’s starting intentions and control of dry clutch engagement during the vehicle launch in order to develop an intelligent automated mechanical transmission system. The optimal engagement laws are deduced by finding a compromise between the friction loss, the shock intensity, the engine torque and the engine angular acceleration, based upon the extremum value theorem. The optimal parameters of clutch engagement are adjusted for the value of the shock intensity. The driver’s starting intentions, which can be divided into three patterns, namely fast starting, medium-speed starting and slow starting, are associated with optimal control of clutch engagement according to fuzzy control theory. It is demonstrated that optimal control of dry clutch engagement can reflect the driver’s starting intentions correctly. The obtained optimal accelerator opening has more advantages than the actual accelerator opening, which can be adopted as the ideal input of the vehicle with an intelligent automated mechanical transmission system.
ISSN:0954-4070
2041-2991
DOI:10.1177/0954407011435465