Active Fault-Tolerant Control Based on the Fault of Electromagnetic Hybrid Active Suspension

In order to improve the ride comfort and handling stability of the vehicle and realize the recovery of vibration energy, an electromagnetic linear hybrid suspension actuator composed of linear motor and solenoid valve shock absorber is proposed. At the same time, a fault diagnosis and fault-tolerant...

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Autores principales: Farong Kou, Jianghao Wu, Jian Gao, Dapeng Wu, Ruochen Chen
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Lenguaje:EN
Publicado: Hindawi Limited 2021
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Acceso en línea:https://doaj.org/article/f19046200bfb434e881e39f5efa1e0b8
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spelling oai:doaj.org-article:f19046200bfb434e881e39f5efa1e0b82021-11-15T01:20:01ZActive Fault-Tolerant Control Based on the Fault of Electromagnetic Hybrid Active Suspension1875-920310.1155/2021/4273698https://doaj.org/article/f19046200bfb434e881e39f5efa1e0b82021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/4273698https://doaj.org/toc/1875-9203In order to improve the ride comfort and handling stability of the vehicle and realize the recovery of vibration energy, an electromagnetic linear hybrid suspension actuator composed of linear motor and solenoid valve shock absorber is proposed. At the same time, a fault diagnosis and fault-tolerant control strategy is designed to solve the system instability caused by the fault of electromagnetic hybrid active suspension. The 1/4 vehicle two-degree-of freedom suspension model, the linear motor mathematical model, and the solenoid valve shock absorber test model are established. In this paper, the fuzzy sliding mode controller is used as the controller and the unknown input observer is used to estimate the state of the suspension. According to the residual obtained from the unknown input observer and compared with the residual threshold, the suspension fault is determined. In the case of fault, the fuzzy sliding mode controller is used to compensate the force and realize the suspension fault-tolerant control. The performance of the suspension is simulated on random road and bumped road, respectively. The simulation results show that the fault-tolerant control effect of the three performance indexes of the suspension is good, and the ride comfort and safety of the suspension are improved. Finally, the bench test is carried out, and the test results show that in the fault-tolerant control state, the root mean square value of the sprung mass acceleration is reduced by 31.69% compared with the fault state and the dynamic performance of the suspension is improved.Farong KouJianghao WuJian GaoDapeng WuRuochen ChenHindawi LimitedarticlePhysicsQC1-999ENShock and Vibration, Vol 2021 (2021)
institution DOAJ
collection DOAJ
language EN
topic Physics
QC1-999
spellingShingle Physics
QC1-999
Farong Kou
Jianghao Wu
Jian Gao
Dapeng Wu
Ruochen Chen
Active Fault-Tolerant Control Based on the Fault of Electromagnetic Hybrid Active Suspension
description In order to improve the ride comfort and handling stability of the vehicle and realize the recovery of vibration energy, an electromagnetic linear hybrid suspension actuator composed of linear motor and solenoid valve shock absorber is proposed. At the same time, a fault diagnosis and fault-tolerant control strategy is designed to solve the system instability caused by the fault of electromagnetic hybrid active suspension. The 1/4 vehicle two-degree-of freedom suspension model, the linear motor mathematical model, and the solenoid valve shock absorber test model are established. In this paper, the fuzzy sliding mode controller is used as the controller and the unknown input observer is used to estimate the state of the suspension. According to the residual obtained from the unknown input observer and compared with the residual threshold, the suspension fault is determined. In the case of fault, the fuzzy sliding mode controller is used to compensate the force and realize the suspension fault-tolerant control. The performance of the suspension is simulated on random road and bumped road, respectively. The simulation results show that the fault-tolerant control effect of the three performance indexes of the suspension is good, and the ride comfort and safety of the suspension are improved. Finally, the bench test is carried out, and the test results show that in the fault-tolerant control state, the root mean square value of the sprung mass acceleration is reduced by 31.69% compared with the fault state and the dynamic performance of the suspension is improved.
format article
author Farong Kou
Jianghao Wu
Jian Gao
Dapeng Wu
Ruochen Chen
author_facet Farong Kou
Jianghao Wu
Jian Gao
Dapeng Wu
Ruochen Chen
author_sort Farong Kou
title Active Fault-Tolerant Control Based on the Fault of Electromagnetic Hybrid Active Suspension
title_short Active Fault-Tolerant Control Based on the Fault of Electromagnetic Hybrid Active Suspension
title_full Active Fault-Tolerant Control Based on the Fault of Electromagnetic Hybrid Active Suspension
title_fullStr Active Fault-Tolerant Control Based on the Fault of Electromagnetic Hybrid Active Suspension
title_full_unstemmed Active Fault-Tolerant Control Based on the Fault of Electromagnetic Hybrid Active Suspension
title_sort active fault-tolerant control based on the fault of electromagnetic hybrid active suspension
publisher Hindawi Limited
publishDate 2021
url https://doaj.org/article/f19046200bfb434e881e39f5efa1e0b8
work_keys_str_mv AT farongkou activefaulttolerantcontrolbasedonthefaultofelectromagnetichybridactivesuspension
AT jianghaowu activefaulttolerantcontrolbasedonthefaultofelectromagnetichybridactivesuspension
AT jiangao activefaulttolerantcontrolbasedonthefaultofelectromagnetichybridactivesuspension
AT dapengwu activefaulttolerantcontrolbasedonthefaultofelectromagnetichybridactivesuspension
AT ruochenchen activefaulttolerantcontrolbasedonthefaultofelectromagnetichybridactivesuspension
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