Finite-Time Stabilization for Vehicle Active Suspension Systems With Hard Constraints

Pan, Huihui; Sun, Wei; Gao, Huijun; Yu, Jinyong

doi:10.1109/tits.2015.2414657

Cited by 126 publications

(68 citation statements)

References 22 publications

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“…So, they are well suited for hardware real-time 3-D image processing, but also may find applications in other areas where 3-D data are employed like in economy modelling, seismic data, weather forecast models, etc. It is also possible to utilise presented results as a digital replacement for analog controllers in control systems [13][14][15]19,20]. Due to the robust orthogonal systems properties, they will be especially applicable when high processing precision is required even for low bit quantization, as in medical imaging.…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Realization of 3-D Orthogonal FIR Filters Using Pipeline Structures

Poczekajło

Wirski

2017

Circuits Syst Signal Process

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The authors present a novel design algorithm for 3-D orthogonal filters. Both separable and non-separable cases are discussed. In the separable case, the synthesis leads to a cascade connection of 1-D systems. In the latter case, one obtains 2-D systems followed by a 1-D one. Realization techniques for these systems are presented which utilize Givens rotations and delay elements. The results are illustrated by examples of separable and non-separable 3-D system designs, i.e., Gaussian and Laplacian filters.

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Section: Resultsmentioning

confidence: 99%

Synthesis and Realization of 3-D Orthogonal FIR Filters Using Pipeline Structures

Poczekajło

Wirski

2017

Circuits Syst Signal Process

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“…The continuous sliding mode speed control law with disturbance estimation is designed as [30] ) ) sgn( ( Substituting control law (9) into (11) yields…”

Section: B Design Of Speed Controllermentioning

confidence: 99%

“…The boundary layer approach employed in [27], [28] is aimed at eliminating the chattering phenomenon completely by replacing the discontinuous control law with a continuous one, but the performance of the disturbance rejection is compromised to some extent. As a control technique for eliminating the chattering phenomenon, a continuous SMC (CSMC) method is proposed in [29], [30] and designed in such a way that the high-frequency switching control is into the higher derivative of the sliding variable.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Continuous Sliding Mode Control for Permanent Magnet Synchronous Motor Speed Regulation Systems Under Time-Varying Disturbances

Wang¹,

Li²,

Yang³

et al. 2016

Journal of Power Electronics

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This article explores the speed regulation problem of permanent magnet synchronous motor (PMSM) systems subjected to unknown time-varying disturbances. A continuous sliding mode control (CSMC) technique is introduced for the speed loop to enhance the robustness of PMSM systems and eliminate the chattering phenomenon caused by high-frequency switch function in the conventional control law. However, the high control gain of the CSMC law in the presence of strong disturbances leads to large steady-state speed fluctuations for PMSM systems. In many application fields, PMSM systems are affected by time-varying disturbances instead of constant disturbances. For example, electric bicycles are usually affected by changing environmental disturbances, including wind speeds, road conditions, etc. These disturbances may be in the form of constant, ramp, and parabolic disturbances. Hence, a generalized proportional integral (GPI) observer is employed to estimate these types of disturbances. Then, the disturbance estimation method and the aforementioned CSMC method are combined to establish a composite sliding mode control method called the CSMC+GPI method for the speed loop of PMSM systems. Contrary to the conventional sliding mode control technique, the proposed method completely eliminates the chattering phenomenon caused by the switching function in the conventional control law. Moreover, a small control gain for the CSMC+GPI method is chosen by feed-forwarding estimated values to the speed controller. Hence, the steady-state speed fluctuations are small. The effectiveness of the proposed control scheme is verified by simulation and experimental result.

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“…Compared with the passive or semiactive suspension systems, an active suspension system is more elastic and efficient, which has a great potential to improve ride comfort and isolate the body from road disturbances reasonably. Therefore, various solutions for active suspension system control have been proposed to determine the improving vehicle suspension performance and solving the crucial problem of designing a suitable control law in the last few decades, ranging from linear control [1,2], to nonlinear control [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Adaptive tracking control of vehicle suspensions with actuator saturations

Zhang

Wang

2015

2015 34th Chinese Control Conference (CCC)

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This paper presents an adaptive tracking controller design approach for vehicle active suspensions to deal with the existence of input saturations aimed at providing superior ride comfort and stabilizing the attitude of the vehicle. A quarter-car vehicle active suspension system is considered in this paper with the nonlinear springs and piecewise linear dampers. Theoretically, a saturated adaptive tracking controller is synthesize to achieve an arbitrarily good disturbance rejection capability at steady-state in the presence of input saturations and uncertainties. Furthermore, the performance analysis of the closed-loop systems is given by rigorous mathematical derivations. Finally, extensive simulations and comparisons are performed to illustrate the proposed approach with typical periodic road input. The obtained results show that the designed controller can achieve good suspension performance despite the existence of control saturations.

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Finite-Time Stabilization for Vehicle Active Suspension Systems With Hard Constraints

Cited by 126 publications

References 22 publications

Synthesis and Realization of 3-D Orthogonal FIR Filters Using Pipeline Structures

Synthesis and Realization of 3-D Orthogonal FIR Filters Using Pipeline Structures

Continuous Sliding Mode Control for Permanent Magnet Synchronous Motor Speed Regulation Systems Under Time-Varying Disturbances

Adaptive tracking control of vehicle suspensions with actuator saturations

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