Adaptive Finite-Time Fault-Tolerant Control for Half-Vehicle Active Suspension Systems with Output Constraints and Random Actuator Failures
The problem of adaptive finite-time fault-tolerant control (FTC) and output constraints for a class of uncertain nonlinear half-vehicle active suspension systems (ASSs) are investigated in this work. Markovian variables are used to denote in terms of different random actuators failures. In adaptive...
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Wiley
2021-01-01
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| Series: | Complexity |
| Online Access: | http://dx.doi.org/10.1155/2021/5964034 |
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| author | Jie Lan Tongyu Xu |
| author_facet | Jie Lan Tongyu Xu |
| author_sort | Jie Lan |
| collection | DOAJ |
| description | The problem of adaptive finite-time fault-tolerant control (FTC) and output constraints for a class of uncertain nonlinear half-vehicle active suspension systems (ASSs) are investigated in this work. Markovian variables are used to denote in terms of different random actuators failures. In adaptive backstepping design procedure, barrier Lyapunov functions (BLFs) are adopted to constrain vertical motion and pitch motion to suppress the vibrations. Unknown functions and coefficients are approximated by the neural network (NN). Assisted by the stochastic practical finite-time theory and FTC theory, the proposed controller can ensure systems achieve stability in a finite time. Meanwhile, displacement and pitch angle in systems would not violate their maximum values, which imply both ride comfort and safety have been enhanced. In addition, all the signals in the closed-loop systems can be guaranteed to be semiglobal finite-time stable in probability (SGFSP). The simulation results illustrate the validity of the established scheme. |
| format | Article |
| id | doaj-art-0952cf4f966842ffa742b0638a63dc5b |
| institution | Kabale University |
| issn | 1076-2787 1099-0526 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Complexity |
| spelling | doaj-art-0952cf4f966842ffa742b0638a63dc5b2025-02-03T06:11:57ZengWileyComplexity1076-27871099-05262021-01-01202110.1155/2021/59640345964034Adaptive Finite-Time Fault-Tolerant Control for Half-Vehicle Active Suspension Systems with Output Constraints and Random Actuator FailuresJie Lan0Tongyu Xu1College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang 110000, Liaoning, ChinaCollege of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang 110000, Liaoning, ChinaThe problem of adaptive finite-time fault-tolerant control (FTC) and output constraints for a class of uncertain nonlinear half-vehicle active suspension systems (ASSs) are investigated in this work. Markovian variables are used to denote in terms of different random actuators failures. In adaptive backstepping design procedure, barrier Lyapunov functions (BLFs) are adopted to constrain vertical motion and pitch motion to suppress the vibrations. Unknown functions and coefficients are approximated by the neural network (NN). Assisted by the stochastic practical finite-time theory and FTC theory, the proposed controller can ensure systems achieve stability in a finite time. Meanwhile, displacement and pitch angle in systems would not violate their maximum values, which imply both ride comfort and safety have been enhanced. In addition, all the signals in the closed-loop systems can be guaranteed to be semiglobal finite-time stable in probability (SGFSP). The simulation results illustrate the validity of the established scheme.http://dx.doi.org/10.1155/2021/5964034 |
| spellingShingle | Jie Lan Tongyu Xu Adaptive Finite-Time Fault-Tolerant Control for Half-Vehicle Active Suspension Systems with Output Constraints and Random Actuator Failures Complexity |
| title | Adaptive Finite-Time Fault-Tolerant Control for Half-Vehicle Active Suspension Systems with Output Constraints and Random Actuator Failures |
| title_full | Adaptive Finite-Time Fault-Tolerant Control for Half-Vehicle Active Suspension Systems with Output Constraints and Random Actuator Failures |
| title_fullStr | Adaptive Finite-Time Fault-Tolerant Control for Half-Vehicle Active Suspension Systems with Output Constraints and Random Actuator Failures |
| title_full_unstemmed | Adaptive Finite-Time Fault-Tolerant Control for Half-Vehicle Active Suspension Systems with Output Constraints and Random Actuator Failures |
| title_short | Adaptive Finite-Time Fault-Tolerant Control for Half-Vehicle Active Suspension Systems with Output Constraints and Random Actuator Failures |
| title_sort | adaptive finite time fault tolerant control for half vehicle active suspension systems with output constraints and random actuator failures |
| url | http://dx.doi.org/10.1155/2021/5964034 |
| work_keys_str_mv | AT jielan adaptivefinitetimefaulttolerantcontrolforhalfvehicleactivesuspensionsystemswithoutputconstraintsandrandomactuatorfailures AT tongyuxu adaptivefinitetimefaulttolerantcontrolforhalfvehicleactivesuspensionsystemswithoutputconstraintsandrandomactuatorfailures |