Effect of a hybrid controller on ride comfort under random road excitation for a semi-active suspension system

Wang, Yu-Hsien; Shih, Ming‐Chang

doi:10.1177/0954407012448595

Cited by 8 publications

(5 citation statements)

References 16 publications

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“…The ISO road profiles were previously obtained and simulated in various studies (Múčka, 2017). In this study, the preferred ISO C grade road profile was obtained using the method describe by a previous study (Wang and Shih, 2012). The PSD values of the created road profiles are shown in Figure 6 (a), and the roughness values are given in Figure 6 (b) in meters.…”

Section: Test Resultsmentioning

confidence: 99%

Nonlinear semi-active adaptive vibration control of a half vehicle model under unmeasured road input

Paksoy

Metin

2019

Journal of Vibration and Control

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This study examined automobile vibrations by using a half vehicle model, and its vertical and angular vibrations were suppressed by means of the nonlinear adaptive control of a magneto-rheological damper. The control method was designed in such a way that it did not need to measure the road input to suppress the vibrations by the use of adaptive road observers. Therefore, disadvantages such as measurement difficulty and cost were also eliminated. Instead of completely experimental test rigs, the hardware-in-the-loop simulation which is a hybrid method was preferred due to it being easier to set up, cheaper, and also it had a close response to the full experimental system. The experimental responses obtained by the proposed adaptive control method with adaptive road observers and the nonlinear adaptive control method in which the road disturbances were measured were compared in the time and frequency domains. Finally, the effectiveness of the proposed method was shown using some figures, root mean square values, and performance indices.

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Section: Test Resultsmentioning

confidence: 99%

Nonlinear semi-active adaptive vibration control of a half vehicle model under unmeasured road input

Paksoy

Metin

2019

Journal of Vibration and Control

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“…Since the pavement excitation is random, it can be characterized by a spectral density function for better analysis and calculation. In ISO 8608 : 1995(E), the pavement power spectral density G q (n) is recommended to be expressed as follows [29]:…”

Section: Road Excitationmentioning

confidence: 99%

A Magnetoelectric Hybrid Hydraulic Damper for the Mining Robot Suspension System

Zhang³

et al. 2021

Shock and Vibration

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In order to improve the damping and controllability of the mining robot suspension system, a new magnetoelectric hybrid suspension hydraulic damper, which is a semiactive suspension damper, is proposed based on the traditional hydraulic damper by introducing the magnetic-electric hybrid suspension structure. The structure and working principle of the damper are introduced, respectively, and the mathematical models of the equivalent stiffness and equivalent damping of the system are calculated by the magnetic circuit method and the oil circuit method, while AMESim/Simulink cosimulation is carried out. In order to test the damping performance, a prototype of the magnetoelectric hybrid suspension hydraulic damper was fabricated. The results show that the vibration displacement amplitude can be reduced by 20% and the vibration acceleration amplitude can be reduced by 10% by adjusting the stiffness and damping of the system due to the magnetoelectric hybrid suspension structure. Moreover, the experimental results are consistent with the simulation results, which verify the effectiveness and superiority of this type of damper.

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“…The applied appropriate electrical current on the damper is produced using the controller system. Consequently, proper dissipative force in the damper is established in the suspension system in order to damp the bounce vibrations [10][11][12]. Due to highly nonlinear behavior in the MR fluid damper, a nonlinear control strategy must be designed for elimination of unwanted vibrations in the chassis of automobile.…”

Section: Introductionmentioning

confidence: 99%

Suppression of chaotic vibrations in suspension system of vehicle dynamics using chattering-free optimal sliding mode control

Abtahi

2019

J Braz. Soc. Mech. Sci. Eng.

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In this wok, chaos analysis along with chaos control is studied in vertical model of the vehicle system. The chaotic behavior has been demonstrated in the suspension system under the specific initial conditions, values of parameters, and profile of road roughness. In order to analyze chaos in the dynamical model, the power spectrum density and Lyapunov exponent methods are used. Moreover, the phase portrait and Poincare' sections of the simulations verify numerically chaos in uncontrolled system. For the purpose of chaos control, a novel optimal sliding mode control strategy is designed for stabilization of the system's behavior via the semi-active suspension using MR fluid damper. As results, the optimal sliding mode control eliminates the chattering phenomenon in the responses and suppresses the chaotic oscillations in comparison with ordinary sliding mode control system. Responses of the feedback system depict the far-better performance of the proposed optimal sliding mode control from the viewpoint of reducing the settling time, overshoot, energy, and amortization in the suspension system.

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Effect of a hybrid controller on ride comfort under random road excitation for a semi-active suspension system

Cited by 8 publications

References 16 publications

Nonlinear semi-active adaptive vibration control of a half vehicle model under unmeasured road input

Nonlinear semi-active adaptive vibration control of a half vehicle model under unmeasured road input

A Magnetoelectric Hybrid Hydraulic Damper for the Mining Robot Suspension System

Suppression of chaotic vibrations in suspension system of vehicle dynamics using chattering-free optimal sliding mode control

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