An Observer-Based Active Fault Tolerant Controller for Vehicle Suspension System
This paper proposes an observer-based active fault-tolerant controller for a half-vehicle active suspension system subjected to the actuator fault as the nonzero offset fault. By constructing the augmented fault suspension system model, an <i>H</i><sub>∞</sub> weigh...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-12-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/8/12/2568 |
| _version_ | 1811317205215739904 |
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| author | Xue Liu Hui Pang Yuting Shang |
| author_facet | Xue Liu Hui Pang Yuting Shang |
| author_sort | Xue Liu |
| collection | DOAJ |
| description | This paper proposes an observer-based active fault-tolerant controller for a half-vehicle active suspension system subjected to the actuator fault as the nonzero offset fault. By constructing the augmented fault suspension system model, an <i>H</i><sub>∞</sub> weighted output feedback controller was developed to improve the vehicle dynamics performances under a fault-free condition. Moreover, a robust observer was designed to make an accurate estimation of the fault information with the auxiliary diagnosis system and further to develop an <i>H</i><sub>∞</sub> fault compensation controller, such that the closed-loop control system can eliminate the negative effects of the actuator faults on vehicle suspension performances. Finally, a numerical simulation investigation was provided to verify the effectiveness of the proposed controller under the random and bump road disturbances. |
| first_indexed | 2024-04-13T12:03:52Z |
| format | Article |
| id | doaj.art-61feb542e42d42109dc781eaad436ba1 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-04-13T12:03:52Z |
| publishDate | 2018-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-61feb542e42d42109dc781eaad436ba12022-12-22T02:47:43ZengMDPI AGApplied Sciences2076-34172018-12-01812256810.3390/app8122568app8122568An Observer-Based Active Fault Tolerant Controller for Vehicle Suspension SystemXue Liu0Hui Pang1Yuting Shang2School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, ChinaSchool of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, ChinaSchool of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, ChinaThis paper proposes an observer-based active fault-tolerant controller for a half-vehicle active suspension system subjected to the actuator fault as the nonzero offset fault. By constructing the augmented fault suspension system model, an <i>H</i><sub>∞</sub> weighted output feedback controller was developed to improve the vehicle dynamics performances under a fault-free condition. Moreover, a robust observer was designed to make an accurate estimation of the fault information with the auxiliary diagnosis system and further to develop an <i>H</i><sub>∞</sub> fault compensation controller, such that the closed-loop control system can eliminate the negative effects of the actuator faults on vehicle suspension performances. Finally, a numerical simulation investigation was provided to verify the effectiveness of the proposed controller under the random and bump road disturbances.https://www.mdpi.com/2076-3417/8/12/2568active suspension systemfault estimationfault compensationfault tolerant control |
| spellingShingle | Xue Liu Hui Pang Yuting Shang An Observer-Based Active Fault Tolerant Controller for Vehicle Suspension System Applied Sciences active suspension system fault estimation fault compensation fault tolerant control |
| title | An Observer-Based Active Fault Tolerant Controller for Vehicle Suspension System |
| title_full | An Observer-Based Active Fault Tolerant Controller for Vehicle Suspension System |
| title_fullStr | An Observer-Based Active Fault Tolerant Controller for Vehicle Suspension System |
| title_full_unstemmed | An Observer-Based Active Fault Tolerant Controller for Vehicle Suspension System |
| title_short | An Observer-Based Active Fault Tolerant Controller for Vehicle Suspension System |
| title_sort | observer based active fault tolerant controller for vehicle suspension system |
| topic | active suspension system fault estimation fault compensation fault tolerant control |
| url | https://www.mdpi.com/2076-3417/8/12/2568 |
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