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.
Original language | English |
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Pages | 631-636 |
Number of pages | 6 |
DOIs | |
Publication status | Published - 1 Dec 2013 |
Externally published | Yes |
Event | Conference on Control and Fault-Tolerant Systems, SysTol - Duration: 1 Dec 2013 → … |
Conference
Conference | Conference on Control and Fault-Tolerant Systems, SysTol |
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Period | 1/12/13 → … |
Bibliographical note
Copyright:Copyright 2014 Elsevier B.V., All rights reserved.
All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Hardware and Architecture
- Software
- Control and Systems Engineering