TY  - UNPB
EP  - 282
T2  - ISATA 29th International Symposium on Automotive Technology and Automation Automotive 
ID  - eprints593
UR  - http://eprints.imtlucca.it/593/
Y1  - 1996///
AV  - none
TI  - Analog fuzzy implementation of a vehicle traction sliding-mode control
N2  - 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.
SP  - 275
A1  - Bellini, A.
A1  - Bemporad, Alberto
A1  - Franchi, Eleonora
A1  - Manaresi, Nicoḷ
A1  - Rovatti, Riccardo
A1  - Torrini, G.
M2  - Croydon, UK
ER  -