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PREVIEW CONTROL OF ACTIVE SUSPENSION WITH INTEGRAL ACTION  

Youn, I. (Department of Mechanical Engineering, RECAPT, Gyeongsang National University)
Hac, A. (Delphi Energy and Chassis Systems, Innovation Center)
Publication Information
International Journal of Automotive Technology / v.7, no.5, 2006 , pp. 547-554 More about this Journal
Abstract
This paper is concerned with an optimal control suspension system using the preview information of road input based on a quarter car model. The main purpose of the control is to combine good vibration isolation characteristics with improved attitude control. The optimal control law is derived with the use of calculus of variation, consisting of three parts. The first part is a full state feedback term that includes integral control acting on the suspension deflection to ensure zero steady-state deflection in response to static body forces and ramp road inputs. The second part is a feed-forward term which compensates for the body forces when they can be detected, and the third part depends on previewed road input. The performance of the suspension is evaluated in terms of frequency domain characteristics and time responses to ramp road input and cornering forces. The effects of each part of the suspension controller on the system behavior are examined.
Keywords
Preview information; Integral action; Attitude control; Body force;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By Web Of Science : 3  (Related Records In Web of Science)
Times Cited By SCOPUS : 2
연도 인용수 순위
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