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Fault-tolerant control for uncertain vehicle suspension systems via fuzzy control approach

Fault-tolerant control for uncertain vehicle suspension systems via fuzzy control approach

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This chapter investigates the problem of fault-tolerant fuzzy controller design for active vehicle suspension systems. We use Takagi-Sugeno (T-S) fuzzy model approach to study the suspension systems with the sprung and unsprung masses' variation, the actuator fault, and other suspension performances. A novel fault-tolerant fuzzy controller is designed such that the resulting T-S fuzzy system is asymptotically stable and has a prescribed H performance under given constraints. Finally, some simulation results based on a quarter-vehicle suspension model are provided to demonstrate the effectiveness of the approaches of the proposed design.

Chapter Contents:

  • Abstract
  • 7.1 Introduction
  • 7.2 Problem formulation
  • 7.3 Fault-tolerant fuzzy controller design
  • 7.4 Simulation results
  • 7.5 Conclusions
  • Appendix
  • References

Inspec keywords: fault tolerance; suspensions (mechanical components); fuzzy control; vehicle dynamics; actuators; road vehicles; H∞ control; control system synthesis

Other keywords: quarter-vehicle suspension model; unsprung masses variation; actuator fault; Takagi-Sugeno fuzzy model approach; active vehicle suspension systems; sprung masses variation; uncertain vehicle suspension systems; H∞ performance; fault-tolerant fuzzy controller design; T-S fuzzy system; fault-tolerant control

Subjects: Optimal control; Mechanical components; Fuzzy control; Vehicle mechanics; Control system analysis and synthesis methods; Road-traffic system control

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