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Control and Sensor Fault Tolerance of Vehicle Active Suspension

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2 Author(s)
Chamseddine, A. ; Univ. Paul Cezanne, Marseille ; Noura, H.

In this paper, a full vehicle active suspension system is considered with the dynamics of the four force actuators. Being a large-scale and complex nonlinear system, it is physically decomposed into five interconnected subsystems. For each subsystem, a local controller is designed. Each control module is decomposed into functional submodules. In a higher level, a global module is designed to supervise all the submodules. In parallel to this hierarchical structure of control, a fault diagnosis structure is constructed. A local diagnosis module is designed for each subsystem to detect and isolate sensor faults. The local modules are monitored by a global module. Simulation is done to illustrate the system control, diagnosis, and fault tolerance.

Published in:

Control Systems Technology, IEEE Transactions on  (Volume:16 ,  Issue: 3 )