Design of an integrated controller for active suspension systems based on wheelbase preview and wavelet noise filter

Zhao, Jing; Hua, Xingqi; Cao, Yucong; Fan, Liangming; Mei, Xingtai; Xie, Zhengchao

doi:10.3233/jifs-181117

Cited by 7 publications

(4 citation statements)

References 32 publications

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“…On the basis of ( 6), (11), and ( 13), the following theorem about the preview controller of system (1) can be obtained.…”

Section: Denote (43) Asmentioning

confidence: 99%

“…After nearly 60 years of development, it has reached many research achievements, such as H ∞ preview control [2][3][4], adaptive preview control [5][6][7], and information fusion preview control [8][9][10]. Meanwhile, preview control has also made some progress in the applications of vehicle active suspension system [11][12][13], robot [14,15] and aircraft [16][17][18], and other fields. e augmented error system is a common approach to solve the preview control problem.…”

Section: Introductionmentioning

confidence: 99%

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Optimal Preview Controller for Linear Discrete-Time Systems: A Virtual System Method

Zhang

Fan

2021

Mathematical Problems in Engineering

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In this paper, a new method for the design of the preview controller for a class of discrete-time systems is proposed based on the virtual system. Firstly, by taking the known future reference signal as the output, the virtual system with similar structures to the controlled system is constructed. Then, the augmented error system is received by translating the controlled system to it and by integrating the error equation. Thus, the tracking problem of the controlled system is transformed into the regulation problem of the augmented error system. Secondly, in view of the minimum principle, the optimal controller of the augmented error system is acquired, and the preview controller of the controlled system is also gained. Further, by discussing the stabilizability and detectability of the augmented error system, the conditions for the existence of the unique positive semidefinite solution to an algebraic Riccati equation are obtained. By using the method in this paper, making difference and dimension expansion for the state equation in designing the augmented error system is avoided and the output can track the reference signals better. Finally, the numerical simulation shows the effectiveness of the proposed controller.

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“…On the basis of ( 6), (11), and ( 13), the following theorem about the preview controller of system (1) can be obtained.…”

Section: Denote (43) Asmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimal Preview Controller for Linear Discrete-Time Systems: A Virtual System Method

Zhang

Fan

2021

Mathematical Problems in Engineering

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“…Han and Feng (2020) consider the reduced-order estimator based fault tolerant preview control problem for linear parameter varying systems. In addition to these theoretical analyses, applications to active vehicle suspension (Alfadhli et al, 2018; Zhao et al, 2019), blade pitch control (Laks et al, 2011) and robot control (Al Khudir et al, 2019) have been carried out.…”

Section: Introductionmentioning

confidence: 99%

Robust preview control for polytopic nonlinear control systems

2021

Transactions of the Institute of Measurement and Control

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In this paper, the preview tracking control problem for Lipschitz nonlinear system, where future reference signals over a finite horizon can be previewed. First, an augmented error system including previewed information is constructed, which transforms a preview tracking control problem into a regulation problem. Furthermore, sufficient conditions on polytopic nonlinear systems, which guarantee the corresponding closed-loop system to be asymptotically stable, are derived by employing parameter-dependent Lyapunov function. A linear matrix inequality approach for designing preview controllers in state feedback and output feedback settings is presented. Finally, two numerical examples are provided to demonstrate the effectiveness of the proposed approach.

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“…The control of the actuator is determined by control approach at various road excitations. [6][7][8][9][10] Various control approaches have been employed for ASSs, such as LQG (linear quadratic Gaussian), 11 H N , 12,13 sliding mode control (SMC) 14 and backstepping, 15 and so on. The SMC algorithm is a well-known efficient control scheme and has been applied to ASS of vehicle.…”

Section: Introductionmentioning

confidence: 99%

Sliding mode control of double-wishbone active suspension systems based on equivalent 2-degree-of-freedom model

Yin

2020

Proceedings of the Institution of Mechanical Engineers, Part D:

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As a critical component of transportation vehicles, active suspension systems (ASSs) have widely attracted attention for their outstanding capability of improving the riding comfort and the maneuverability. However, due to the effects of the suspension kinematic structure and the rubber elements containing bushings and top mount, the practical double-wishbone ASS cannot achieve the desired performance resulting from the control design based on a simple 2-degree-of-freedom (DOF) model. In this paper, a sliding mode control (SMC) based on an equivalent 2-DOF model is proposed to suppress the sprung mass vibration of a double-wishbone ASS, which is to improve the riding comfort of vehicle. The SMC for a double-wishbone ASS is designed in four steps. First, an equivalent 2-DOF model of a double-wishbone ASS, which considers suspension kinematic structure and rubber properties, is established. The parameter values of an equivalent 2-DOF model are identified by using least square method. Second, an SMC is designed for an equivalent 2-DOF model, and the effect of the parameter value of the 2-DOF model on the riding comfort is investigated by experimental results. Third, a control compensator for a double-wishbone ASS is developed by considering the suspension kinematic structure. Four, the control for double-wishbone ASS is obtained by integrating the compensator into the SMC based on the equivalent 2-DOF model. The numerical simulation results show that the control can effectively suppress the sprung mass vibration of the double-wishbone ASS when the SMC design is based on an equivalent 2-DOF model.

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Design of an integrated controller for active suspension systems based on wheelbase preview and wavelet noise filter

Cited by 7 publications

References 32 publications

Optimal Preview Controller for Linear Discrete-Time Systems: A Virtual System Method

Optimal Preview Controller for Linear Discrete-Time Systems: A Virtual System Method

Robust preview control for polytopic nonlinear control systems

Sliding mode control of double-wishbone active suspension systems based on equivalent 2-degree-of-freedom model

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