The Experts below are selected from a list of 267 Experts worldwide ranked by ideXlab platform
Jing Zhao - One of the best experts on this subject based on the ideXlab platform.
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static output feedback based robust fuzzy Wheelbase preview control for uncertain active suspensions with time delay and finite frequency constraint
IEEE CAA Journal of Automatica Sinica, 2021Co-Authors: Zhengchao Xie, Jing Zhao, Pak Kin Wong, Hui Wang, Xiaowei WangAbstract:This paper proposes a static-output-feedback based robust fuzzy Wheelbase preview control algorithm for uncertain active suspensions with time delay and finite frequency constraint. Firstly, a Takagi-Sugeno (T-S) fuzzy augmented model is established to formulate the half-car active suspension system with consideration of time delay, sprung mass variation and Wheelbase preview information. Secondly, in view of the resonation between human's organs and vertical vibrations in the frequency range of 4-8 Hz, a finite frequency control criterion in terms of $H_{\infty}$ norm is developed to improve ride comfort. Meanwhile, other mechanical constraints are also considered and satisfied via generalized $H_{2}$ norm. Thirdly, in order to maintain the feasibility of the controller despite of some state variables are not online-measured, a two stage approach is adopted to derive a static output feedback controller. Finally, numerical simulation results illustrate the excellent performance of the proposed controller.
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multi objective frequency domain constrained static output feedback control for delayed active suspension systems with Wheelbase preview information
Nonlinear Dynamics, 2021Co-Authors: Jing Zhao, Pak Kin Wong, Zhengchao Xie, Xiaowei Wang, Junru JiaAbstract:In this research, a multi-objective frequency domain-constrained static output feedback control is developed for the delayed active suspension system with Wheelbase preview information. Firstly, the model of the half-vehicle active suspension system with Wheelbase preview information and time delay is constructed by employing the augmented method. Secondly, in vertical vibration, the human body senses are more intense when the frequency of the external disturbance is in the range of 4–8 Hz. Therefore, a finite frequency control method is proposed for the controller design with robust $$ H_{\infty } $$ and generalized $$ H_{2} $$ performance. Thirdly, considering that a full online knowledge of states is not available in practical suspension systems, a static output feedback strategy is proposed to guarantee the feasibility of the controller by using a two-stage method. Finally, simulation study is given to explain the effectiveness and superiority of the presented controller.
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design and analysis of an integrated sliding mode control two point Wheelbase preview strategy for a semi active air suspension with stepper motor driven gas filled adjustable shock absorber
Proceedings of the Institution of Mechanical Engineers Part I: Journal of Systems and Control Engineering, 2018Co-Authors: Jing Zhao, Pak Kin Wong, Zhengchao XieAbstract:This article proposes an integrated sliding mode control–two-point Wheelbase preview strategy for semi-active air suspension system with gas-filled adjustable shock absorber. First of all, a vehicl...
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design of a denoising hybrid fuzzy pid controller for active suspension systems of heavy vehicles based on model adaptive Wheelbase preview strategy
Journal of Vibroengineering, 2015Co-Authors: Zhengchao Xie, Pak Kin Wong, Jing ZhaoAbstract:Active suspension is an effective approach to improve vehicle performance, and it is of great importance to attenuate the vibration of the rear part of heavy vehicles with freight. This paper proposes a new hybrid fuzzy proportional-integral-derivative (PID) controller with model adaptive Wheelbase preview and wavelet denoising filter in an active suspension system for heavy vehicles with freight. A half vehicle model is first built, followed with the construction of the road excitation profiles of the shock and vibration pavement. After the design and implementation of the control method, four performance indices of the vehicle are evaluated. To verify the effectiveness of the proposed method, the control performance of the integrated controller and the separate function of every single controller are evaluated respectively. Numerical results show that the integrated control algorithm is superior to the single controllers and is effective in improving the vehicle performance as compared with other methods. Moreover, the wavelet denoising filter is shown to be an effective way to improve the vehicle performance and enable the stability of the system against noise.
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a noise insensitive semi active air suspension for heavy duty vehicles with an integrated fuzzy Wheelbase preview control
Mathematical Problems in Engineering, 2013Co-Authors: Zhengchao Xie, Jing Zhao, Pak Kin Wong, Ka In Wong, Hang Cheong WongAbstract:Semi-active air suspension is increasingly used on heavy-duty vehicles due to its capabilities of consuming less power and low cost and providing better ride quality. In this study, a new low cost but effective approach, fuzzy-Wheelbase preview controller with wavelet denoising filter (FPW), is developed for semi-active air suspension system. A semi-active suspension system with a rolling lobe air spring is firstly modeled and a novel front axle vertical acceleration-based road prediction model is constructed. By adopting a sensor on the front axle, the road prediction model can predict more reliable road information for the rear wheel. After filtering useless signal noise, the proposed FPW can generate a noise-insensitive control damping force. Simulation results show that the ride quality, the road holding, the handling capability, the road friendliness, and the comprehensive performance of the semi-active air suspension with FPW outperform those with the traditional active suspension with PID-Wheelbase preview controller (APP). It can also be seen that, with the addition of the wavelet filter, the impact of sensor noise on the suspension performance can be minimized.
Zhengchao Xie - One of the best experts on this subject based on the ideXlab platform.
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static output feedback based robust fuzzy Wheelbase preview control for uncertain active suspensions with time delay and finite frequency constraint
IEEE CAA Journal of Automatica Sinica, 2021Co-Authors: Zhengchao Xie, Jing Zhao, Pak Kin Wong, Hui Wang, Xiaowei WangAbstract:This paper proposes a static-output-feedback based robust fuzzy Wheelbase preview control algorithm for uncertain active suspensions with time delay and finite frequency constraint. Firstly, a Takagi-Sugeno (T-S) fuzzy augmented model is established to formulate the half-car active suspension system with consideration of time delay, sprung mass variation and Wheelbase preview information. Secondly, in view of the resonation between human's organs and vertical vibrations in the frequency range of 4-8 Hz, a finite frequency control criterion in terms of $H_{\infty}$ norm is developed to improve ride comfort. Meanwhile, other mechanical constraints are also considered and satisfied via generalized $H_{2}$ norm. Thirdly, in order to maintain the feasibility of the controller despite of some state variables are not online-measured, a two stage approach is adopted to derive a static output feedback controller. Finally, numerical simulation results illustrate the excellent performance of the proposed controller.
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multi objective frequency domain constrained static output feedback control for delayed active suspension systems with Wheelbase preview information
Nonlinear Dynamics, 2021Co-Authors: Jing Zhao, Pak Kin Wong, Zhengchao Xie, Xiaowei Wang, Junru JiaAbstract:In this research, a multi-objective frequency domain-constrained static output feedback control is developed for the delayed active suspension system with Wheelbase preview information. Firstly, the model of the half-vehicle active suspension system with Wheelbase preview information and time delay is constructed by employing the augmented method. Secondly, in vertical vibration, the human body senses are more intense when the frequency of the external disturbance is in the range of 4–8 Hz. Therefore, a finite frequency control method is proposed for the controller design with robust $$ H_{\infty } $$ and generalized $$ H_{2} $$ performance. Thirdly, considering that a full online knowledge of states is not available in practical suspension systems, a static output feedback strategy is proposed to guarantee the feasibility of the controller by using a two-stage method. Finally, simulation study is given to explain the effectiveness and superiority of the presented controller.
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design and analysis of an integrated sliding mode control two point Wheelbase preview strategy for a semi active air suspension with stepper motor driven gas filled adjustable shock absorber
Proceedings of the Institution of Mechanical Engineers Part I: Journal of Systems and Control Engineering, 2018Co-Authors: Jing Zhao, Pak Kin Wong, Zhengchao XieAbstract:This article proposes an integrated sliding mode control–two-point Wheelbase preview strategy for semi-active air suspension system with gas-filled adjustable shock absorber. First of all, a vehicl...
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design of a denoising hybrid fuzzy pid controller for active suspension systems of heavy vehicles based on model adaptive Wheelbase preview strategy
Journal of Vibroengineering, 2015Co-Authors: Zhengchao Xie, Pak Kin Wong, Jing ZhaoAbstract:Active suspension is an effective approach to improve vehicle performance, and it is of great importance to attenuate the vibration of the rear part of heavy vehicles with freight. This paper proposes a new hybrid fuzzy proportional-integral-derivative (PID) controller with model adaptive Wheelbase preview and wavelet denoising filter in an active suspension system for heavy vehicles with freight. A half vehicle model is first built, followed with the construction of the road excitation profiles of the shock and vibration pavement. After the design and implementation of the control method, four performance indices of the vehicle are evaluated. To verify the effectiveness of the proposed method, the control performance of the integrated controller and the separate function of every single controller are evaluated respectively. Numerical results show that the integrated control algorithm is superior to the single controllers and is effective in improving the vehicle performance as compared with other methods. Moreover, the wavelet denoising filter is shown to be an effective way to improve the vehicle performance and enable the stability of the system against noise.
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a noise insensitive semi active air suspension for heavy duty vehicles with an integrated fuzzy Wheelbase preview control
Mathematical Problems in Engineering, 2013Co-Authors: Zhengchao Xie, Jing Zhao, Pak Kin Wong, Ka In Wong, Hang Cheong WongAbstract:Semi-active air suspension is increasingly used on heavy-duty vehicles due to its capabilities of consuming less power and low cost and providing better ride quality. In this study, a new low cost but effective approach, fuzzy-Wheelbase preview controller with wavelet denoising filter (FPW), is developed for semi-active air suspension system. A semi-active suspension system with a rolling lobe air spring is firstly modeled and a novel front axle vertical acceleration-based road prediction model is constructed. By adopting a sensor on the front axle, the road prediction model can predict more reliable road information for the rear wheel. After filtering useless signal noise, the proposed FPW can generate a noise-insensitive control damping force. Simulation results show that the ride quality, the road holding, the handling capability, the road friendliness, and the comprehensive performance of the semi-active air suspension with FPW outperform those with the traditional active suspension with PID-Wheelbase preview controller (APP). It can also be seen that, with the addition of the wavelet filter, the impact of sensor noise on the suspension performance can be minimized.
Pak Kin Wong - One of the best experts on this subject based on the ideXlab platform.
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static output feedback based robust fuzzy Wheelbase preview control for uncertain active suspensions with time delay and finite frequency constraint
IEEE CAA Journal of Automatica Sinica, 2021Co-Authors: Zhengchao Xie, Jing Zhao, Pak Kin Wong, Hui Wang, Xiaowei WangAbstract:This paper proposes a static-output-feedback based robust fuzzy Wheelbase preview control algorithm for uncertain active suspensions with time delay and finite frequency constraint. Firstly, a Takagi-Sugeno (T-S) fuzzy augmented model is established to formulate the half-car active suspension system with consideration of time delay, sprung mass variation and Wheelbase preview information. Secondly, in view of the resonation between human's organs and vertical vibrations in the frequency range of 4-8 Hz, a finite frequency control criterion in terms of $H_{\infty}$ norm is developed to improve ride comfort. Meanwhile, other mechanical constraints are also considered and satisfied via generalized $H_{2}$ norm. Thirdly, in order to maintain the feasibility of the controller despite of some state variables are not online-measured, a two stage approach is adopted to derive a static output feedback controller. Finally, numerical simulation results illustrate the excellent performance of the proposed controller.
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multi objective frequency domain constrained static output feedback control for delayed active suspension systems with Wheelbase preview information
Nonlinear Dynamics, 2021Co-Authors: Jing Zhao, Pak Kin Wong, Zhengchao Xie, Xiaowei Wang, Junru JiaAbstract:In this research, a multi-objective frequency domain-constrained static output feedback control is developed for the delayed active suspension system with Wheelbase preview information. Firstly, the model of the half-vehicle active suspension system with Wheelbase preview information and time delay is constructed by employing the augmented method. Secondly, in vertical vibration, the human body senses are more intense when the frequency of the external disturbance is in the range of 4–8 Hz. Therefore, a finite frequency control method is proposed for the controller design with robust $$ H_{\infty } $$ and generalized $$ H_{2} $$ performance. Thirdly, considering that a full online knowledge of states is not available in practical suspension systems, a static output feedback strategy is proposed to guarantee the feasibility of the controller by using a two-stage method. Finally, simulation study is given to explain the effectiveness and superiority of the presented controller.
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design and analysis of an integrated sliding mode control two point Wheelbase preview strategy for a semi active air suspension with stepper motor driven gas filled adjustable shock absorber
Proceedings of the Institution of Mechanical Engineers Part I: Journal of Systems and Control Engineering, 2018Co-Authors: Jing Zhao, Pak Kin Wong, Zhengchao XieAbstract:This article proposes an integrated sliding mode control–two-point Wheelbase preview strategy for semi-active air suspension system with gas-filled adjustable shock absorber. First of all, a vehicl...
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design of a denoising hybrid fuzzy pid controller for active suspension systems of heavy vehicles based on model adaptive Wheelbase preview strategy
Journal of Vibroengineering, 2015Co-Authors: Zhengchao Xie, Pak Kin Wong, Jing ZhaoAbstract:Active suspension is an effective approach to improve vehicle performance, and it is of great importance to attenuate the vibration of the rear part of heavy vehicles with freight. This paper proposes a new hybrid fuzzy proportional-integral-derivative (PID) controller with model adaptive Wheelbase preview and wavelet denoising filter in an active suspension system for heavy vehicles with freight. A half vehicle model is first built, followed with the construction of the road excitation profiles of the shock and vibration pavement. After the design and implementation of the control method, four performance indices of the vehicle are evaluated. To verify the effectiveness of the proposed method, the control performance of the integrated controller and the separate function of every single controller are evaluated respectively. Numerical results show that the integrated control algorithm is superior to the single controllers and is effective in improving the vehicle performance as compared with other methods. Moreover, the wavelet denoising filter is shown to be an effective way to improve the vehicle performance and enable the stability of the system against noise.
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a noise insensitive semi active air suspension for heavy duty vehicles with an integrated fuzzy Wheelbase preview control
Mathematical Problems in Engineering, 2013Co-Authors: Zhengchao Xie, Jing Zhao, Pak Kin Wong, Ka In Wong, Hang Cheong WongAbstract:Semi-active air suspension is increasingly used on heavy-duty vehicles due to its capabilities of consuming less power and low cost and providing better ride quality. In this study, a new low cost but effective approach, fuzzy-Wheelbase preview controller with wavelet denoising filter (FPW), is developed for semi-active air suspension system. A semi-active suspension system with a rolling lobe air spring is firstly modeled and a novel front axle vertical acceleration-based road prediction model is constructed. By adopting a sensor on the front axle, the road prediction model can predict more reliable road information for the rear wheel. After filtering useless signal noise, the proposed FPW can generate a noise-insensitive control damping force. Simulation results show that the ride quality, the road holding, the handling capability, the road friendliness, and the comprehensive performance of the semi-active air suspension with FPW outperform those with the traditional active suspension with PID-Wheelbase preview controller (APP). It can also be seen that, with the addition of the wavelet filter, the impact of sensor noise on the suspension performance can be minimized.
Xiaowei Wang - One of the best experts on this subject based on the ideXlab platform.
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static output feedback based robust fuzzy Wheelbase preview control for uncertain active suspensions with time delay and finite frequency constraint
IEEE CAA Journal of Automatica Sinica, 2021Co-Authors: Zhengchao Xie, Jing Zhao, Pak Kin Wong, Hui Wang, Xiaowei WangAbstract:This paper proposes a static-output-feedback based robust fuzzy Wheelbase preview control algorithm for uncertain active suspensions with time delay and finite frequency constraint. Firstly, a Takagi-Sugeno (T-S) fuzzy augmented model is established to formulate the half-car active suspension system with consideration of time delay, sprung mass variation and Wheelbase preview information. Secondly, in view of the resonation between human's organs and vertical vibrations in the frequency range of 4-8 Hz, a finite frequency control criterion in terms of $H_{\infty}$ norm is developed to improve ride comfort. Meanwhile, other mechanical constraints are also considered and satisfied via generalized $H_{2}$ norm. Thirdly, in order to maintain the feasibility of the controller despite of some state variables are not online-measured, a two stage approach is adopted to derive a static output feedback controller. Finally, numerical simulation results illustrate the excellent performance of the proposed controller.
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multi objective frequency domain constrained static output feedback control for delayed active suspension systems with Wheelbase preview information
Nonlinear Dynamics, 2021Co-Authors: Jing Zhao, Pak Kin Wong, Zhengchao Xie, Xiaowei Wang, Junru JiaAbstract:In this research, a multi-objective frequency domain-constrained static output feedback control is developed for the delayed active suspension system with Wheelbase preview information. Firstly, the model of the half-vehicle active suspension system with Wheelbase preview information and time delay is constructed by employing the augmented method. Secondly, in vertical vibration, the human body senses are more intense when the frequency of the external disturbance is in the range of 4–8 Hz. Therefore, a finite frequency control method is proposed for the controller design with robust $$ H_{\infty } $$ and generalized $$ H_{2} $$ performance. Thirdly, considering that a full online knowledge of states is not available in practical suspension systems, a static output feedback strategy is proposed to guarantee the feasibility of the controller by using a two-stage method. Finally, simulation study is given to explain the effectiveness and superiority of the presented controller.
Junru Jia - One of the best experts on this subject based on the ideXlab platform.
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multi objective frequency domain constrained static output feedback control for delayed active suspension systems with Wheelbase preview information
Nonlinear Dynamics, 2021Co-Authors: Jing Zhao, Pak Kin Wong, Zhengchao Xie, Xiaowei Wang, Junru JiaAbstract:In this research, a multi-objective frequency domain-constrained static output feedback control is developed for the delayed active suspension system with Wheelbase preview information. Firstly, the model of the half-vehicle active suspension system with Wheelbase preview information and time delay is constructed by employing the augmented method. Secondly, in vertical vibration, the human body senses are more intense when the frequency of the external disturbance is in the range of 4–8 Hz. Therefore, a finite frequency control method is proposed for the controller design with robust $$ H_{\infty } $$ and generalized $$ H_{2} $$ performance. Thirdly, considering that a full online knowledge of states is not available in practical suspension systems, a static output feedback strategy is proposed to guarantee the feasibility of the controller by using a two-stage method. Finally, simulation study is given to explain the effectiveness and superiority of the presented controller.
