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International Journal of Automotive Technology 2006;7(6): 729-739. |
| Active Fault-tolerant Control of Induction Motor Drives in EV and HEV against Sensor Failures Using a Fuzzy Decision System |
| M. E. H. BENBOUZID1, D. DIALLO2, M. ZERAOULIA1, F. ZIDANI3 |
1University of Western Brittany
2Laboratoire de Genie Electrique de Paris
3University of Batna–1 |
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| ABSTRACT |
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This paper describes an active fault-tolerant control system for an induction motor drive that propels an Electrical Vehicle (EV) or a Hybrid one (HEV). The proposed system adaptively reorganizes itself in the event of sensor loss or sensor recovery to sustain the best control performance given the complement of remaining sensors. Moreover, the developed system takes into account the controller transition smoothness in terms of speed and torque transients. In this paper which is the sequel of (Diallo et al., 2004), we propose to introduce more advanced and intelligent control techniques to improve the global performance of the fault-tolerant drive for automotive applications (e.g. EVs or HEVs). In fact, two control techniques are chosen to illustrate the consistency of the proposed approach: sliding mode for encoder-based control; and fuzzy logics for sensorless control. Moreover, the system control reorganization is now managed by a fuzzy decision system to improve the transitions smoothness. Simulations tests, in terms of speed and torque responses, have been carried out on a 4-kW induction motor drive to evaluate the consistency and the performance of the proposed fault-tolerant control approach. |
| Key Words:
Automotive application, Induction motor drive, Fault-tolerant control, Sliding mode, Fuzzy logics |
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