Coupling Mechanism and Decoupled Suspension Control Model of a Half Car

Zhang, Hailong; Zhang, Ning; Min, Fuhong; Rakheja, Subhash; Su, Chun‐Yi; Wang, Enrong

doi:10.1155/2016/1932107

Cited by 7 publications

(6 citation statements)

References 22 publications

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“…Figure 7 presents the FV diagrams for two electric current levels, 0 and 2.5 A, at frequency set of {1, 2, 4, 6, 10, 15} Hz. It can be observed that as the frequency increases, the hysteresis of the force also increases; this effect is caused by the turbulent flow generated inside the tube (Zhang et al, 2016). It can also be observed that the asymmetry between the jounce/rebound effects increases at a higher frequency of motion (de J Lozoya-Santos et al, 2012), and(Vivas-Lopez et al, 2015).…”

Section: Mr Damper Characterization and Modelingmentioning

confidence: 94%

Damping Variation Effects in Vehicle Semi-active MR Suspensions: A Stress Concentration Analysis

et al. 2021

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Semi-active vehicle suspensions are used to improve the limited comfort performance of passive vehicle suspensions by varying the damping coefficient according to a control strategy. These benefits have been usually studied in a transient and frequency domain, but rarely in a multi-body dynamic analysis considering the mechanical components and their joints. In this study, the controllability effects of a magnetorheological (MR) damper on the mechanical components of a McPherson automotive suspension are investigated using a stress concentration analysis. Finite element analysis was used with a Quarter of Vehicle (QoV) suspension model configured with an MR damper, and then compared with the passive damper. The simulation results show that an SA damper in the suspension not only improves the dynamic behavior of a road vehicle, but it also has the positive effect of reducing the stress concentrations in a critical suspension element, the knuckle, that are generated by high amplitude road profiles such as rough roads or dangerous street bumps.

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Section: Mr Damper Characterization and Modelingmentioning

confidence: 94%

Damping Variation Effects in Vehicle Semi-active MR Suspensions: A Stress Concentration Analysis

et al. 2021

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“…11,12 Others developed observerbased backstepping fast terminal sliding mode control to deal with uncertain dynamics in active suspension system. 13,14 ''Input Decoupling Transformation'' (IDT) strategy is used in heave and pitch control as introduced by Zhang et al 15 in the case of half car system. Accordingly, one of the challenges taken by researchers for improving ride comfort is to implement pitch and heave control of the active suspension system.…”

Section: Introductionmentioning

confidence: 99%

Improving the ride comfort of full car model with a decoupling intelligent model free controller

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et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part D:

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A new technique of active control is presented for enhancing the dynamic responses of full car systems with bias to ride comfort performance. A seven degrees of freedom full car model is used, and its performance is evaluated on a bump road and random road. The proposed scheme is a combination between traditional controller design methods with an algebraic estimator of perturbations that will be eliminated online. From the inputs and the outputs signals, the unmodeled phenomenon can be estimated and be subtracted for ensuring the proper functioning of the system. The precise mathematical model of the system is not required for the implementation of the control scheme and is replaced by ultra-local models. Furthermore, the effectiveness of the algebraic estimator of road profile is introduced for applying the excitation sources of the reference generator. The road profiles in front of the vehicle are estimated separately from the rear road profiles. The ride comfort is improved progressively with the novel controller configuration by 83% from the passive case. Further, pitching and rolling fluctuations are reduced by 80% and 85% respectively. The numerical simulations illustrate the effectiveness and the robustness against vehicle body mass deviation and nonlinear actuator saturation of the proposed control method compared to passive and Active Disturbance Rejection Controller based on Input Decoupling Transformation.

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“…Experimental analyses of the damping systems used in automotive engineering are presented in [ 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

A Vibration Analysis of the Rubber Inertial Dampers Used in Electrical Vehicles

2022

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The development of electric vehicle manufacturing, which is considered a useful new popular propulsion system, has major design differences compared to conventional vehicles. This requires a reconsideration of the main components of vehicles and an analysis of them to determine the optimal design and solutions for the new models of cars. Among the many systems that need to be reconsidered is the suspension. A cheaper solution for reducing the car’s vibrations is suspension where the damping is ensured by elastic rubber elements, which are very simple, as they have significant structural damping and a much lower price than the classic solution. The main advantage of this solution is the simplicity. The paper presents and analyzes such an element, analyzing the vibrations of this element and the way in which inertial masses (metal spheres) inserted into the volume of the rubber influence the behavior of this element. The transmissibility of such an element, and how the number of balls and the level of structural damping influences this property, is also analyzed. The results suggest possible applications in the automotive industry.

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Coupling Mechanism and Decoupled Suspension Control Model of a Half Car

Cited by 7 publications

References 22 publications

Damping Variation Effects in Vehicle Semi-active MR Suspensions: A Stress Concentration Analysis

Damping Variation Effects in Vehicle Semi-active MR Suspensions: A Stress Concentration Analysis

Improving the ride comfort of full car model with a decoupling intelligent model free controller

A Vibration Analysis of the Rubber Inertial Dampers Used in Electrical Vehicles

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