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Analog fuzzy implementation of a vehicle traction sliding-mode control

Bellini, A. and Bemporad, Alberto and Franchi, Eleonora and Manaresi, Nicolò and Rovatti, Riccardo and Torrini, G. Analog fuzzy implementation of a vehicle traction sliding-mode control. In: ISATA 29th International Symposium on Automotive Technology and Automation Automotive , 1996, Croydon, UK pp. 275-282. (Unpublished) (1996)

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Road adherence is an imprecise function of many parameters strongly affected by road conditions. In this paper, we propose a very robust control with a static nonlinear feedback law which can consider adherence and other model uncertainties, regulating the wheel slip at any desired value with good precision properties. A sliding-mode control has been designed to provide stability and reliability. Once designed, the control surface has been fuzzified and implemented with a programmable analog fuzzy circuit which uses a 0.7 mu m CMOS technology provided by SGS-Thomson Microelectronics. This implementation is carried out with a semi-automatic design flow and features high computational efficiency at it very low cost, especially when compared to a digital one. Moreover, the controller response time is less than 1 mu s. A flexible control of the slip coefficient has been performed. Results show that the desired slip coefficient is reached and kept with good approximation in compliance with theoretical results.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TL Motor vehicles. Aeronautics. Astronautics
Research Area: Computer Science and Applications
Depositing User: Professor Alberto Bemporad
Date Deposited: 27 Jul 2011 09:20
Last Modified: 16 Jul 2014 13:01
URI: http://eprints.imtlucca.it/id/eprint/593

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