Almost disturbance decoupling and tracking control for multi-input multi-output non-linear uncertain systems: Application to a half-car active suspension system

2008 ◽  
Vol 223 (2) ◽  
pp. 215-228 ◽  
Author(s):  
T-L Chien ◽  
C-C Chen ◽  
M-C Tsai ◽  
Y-C Chen
Keyword(s):  
Tracking Control ◽  
Uncertain Systems ◽  
Active Suspension ◽  
Suspension System ◽  
Almost Disturbance Decoupling ◽  
Disturbance Decoupling ◽  
Non Linear

Improved optimal sliding mode control for a non-linear vehicle active suspension system

2017 ◽  
Vol 395 ◽  
pp. 1-25 ◽  
Author(s):  
Shi-An Chen ◽  
Jun-Cheng Wang ◽  
Ming Yao ◽  
Young-Bae Kim
Keyword(s):  
Sliding Mode Control ◽  
Sliding Mode ◽  
Active Suspension ◽  
Suspension System ◽  
Mode Control ◽  
Non Linear

LPV gain-scheduling controller design for a non-linear quarter-vehicle active suspension system

2009 ◽  
Vol 31 (1) ◽  
pp. 71-95 ◽  
Author(s):  
C. Onat ◽  
I.B. Kucukdemiral ◽  
S. Sivrioglu ◽  
I. Yuksek ◽  
G. Cansever
Keyword(s):  
Controller Design ◽  
Active Suspension ◽  
Gain Scheduling ◽  
Suspension System ◽  
Non Linear

Effect of Non-Linear Components on the Performance of a Hydro -Pneumatic Slow-Active Suspension System

1996 ◽  
Vol 210 (1) ◽  
pp. 23-34 ◽  
Author(s):  
S M El-Demerdash ◽  
D A Crolla
Keyword(s):  
Linear Model ◽  
Linear Models ◽  
Ride Comfort ◽  
Active Suspension ◽  
Front Wheel ◽  
Suspension System ◽  
Approximation Technique ◽  
Active System ◽  
Working Space ◽  
Non Linear

In this work, the effects of component non-linearities on the ride performance of a hydro-pneumatic slow-active suspension system are studied theoretically. Based on the quarter car linear model, linear optimal control theory is used to calculate the feedback and feedforward gains. These gains are used in both linear and non-linear models with and without preview control. The Pade approximation technique is used to represent the preview time resulting from a preview sensor mounted on the vehicle front bumper to measure the road irregularities ahead of the front wheel. The results on a typical major road showed that at similar r.m.s. values of suspension working space, the non-linear slow-active system with preview provided a 28 per cent improvement in ride comfort and a 17 per cent reduction in dynamic tyre load compared with a passive system. However, the inclusion of non-linear effects of the components increases the ride comfort acceleration by 10 per cent and suspension working space by 12 per cent compared to the equivalent linear model at approximately equal values of r.m.s. dynamic tyre load.

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