ACTIVE SUSPENSION CONTROL - PERFORMANCE COMPARISONS USING CONTROL LAWS APPLIED TO A FULL VEHICLE MODEL

被引：36

作者：

CROLLA, DA

ABDELHADY, MBA

机构：

[1] Dept. of Mechanical Engineering, University of Leeds, Leeds

[2] Automotive Engineering Dept., Helwan University, Cairo

来源：

VEHICLE SYSTEM DYNAMICS | 1991年 / 20卷 / 02期

关键词：

D O I：

10.1080/00423119108968982

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Based on a mathematical model of an actively suspended vehicle, the effects of the following issues in deriving the control laws are studied: (a) representation of the ground surface as integrated or filtered white noise. (b) cross-correlation between left and right track inputs. (c) wheelbase time delay between front and rear inputs. The third of these issues is shown to be by far the most important. Considerable improvements at the rear suspension can be obtained if the control law includes the information that the rear input is simply a delayed version of the front input. Effectively this provides feedforward terms in the control law for the rear actuator. For the full state feedback case, these improvements are indicated by reductions in the rear body acceleration and rear dynamic tyre load of around 20% and 40% respectively with no increase in suspension working space.

引用

页码：107 / 120

页数：14

共 5 条

[1]

Abdel-Hady M.B.A., The effect of active suspension control on vehicle ride behaviour. Ph.D. Thesis, (1989)

[2]

Abdel-Hady M.B.A., Crolla D.A., Active suspension control algorithms for a four wheel vehicle model. To be published in the International Journal of Vehicle Design, (1991)

[3]

Robson J.D., Road surface description and vehicle response, 1, pp. 25-35, (1979)

[4]

Rill G., The influence of correlated random road excitation processes on vehicle vibration, Proc. 8th I.A.V.S.D. Symposium on the Dynamics of Vehicles on Road and on Railway Tracks, pp. 449-459, (1983)

[5]

Louam N., Wilson D.A., Sharp R.S., Optimal control of a vehicle suspension incorporating the time delay between front and rear inputs. Vehicle System Dynamics, 17, pp. 317-336, (1988)

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