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Fault tolerant strategy for semi-active suspensions with LPV accommodation?

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Abstract

A novel fault tolerant strategy to compensate multiplicative actuator faults (damper oil leakages) in a semi-active suspension system is proposed. The compensation of the lack of damping force caused by a faulty damper is carried on by the remainder three healthy semi-active dampers. Once a faulty damper is detected and isolated by a Fault Detection and Isolation strategy based on parity-space, an estimator is activated to compute the missing damping force to compensate. In order to fulfill the semi-active damper constraints, the fault accommodation is based on the Linear-Parameter Varying (LPV) control strategy. Thus, each corner has a fault estimator and an LPV controller oriented to comfort and road holding. Simulation results show that the proposed fault tolerant semi-active suspension improves the vehicle comfort up to 60% with respect to a controlled suspension without fault-tolerant strategy and 82% with respect to a passive suspension. © 2013 IEEE.

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APA

Tudón-Martínez, J. C., Varrier, S., Sename, O., Morales-Menendez, R., Martinez, J. J., & Dugard, L. (2013). Fault tolerant strategy for semi-active suspensions with LPV accommodation? In Conference on Control and Fault-Tolerant Systems, SysTol (pp. 631–636). https://doi.org/10.1109/SysTol.2013.6693942

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