Robust H/sup ∞/ controller design for performance improvement of a semi-active suspension systems

Author(s):  
Seung Gweon Jeong ◽  
In Soo Kim ◽  
Kang Sup Yoon ◽  
Jong Nyun Lee ◽  
Jong II Bae ◽  
...  
Author(s):  
Vikas Prasad ◽  
P. Seshu ◽  
Dnyanesh N. Pawaskar

Abstract In this paper, the design of the suspension system for Heavy Goods Vehicles (HGV) is proposed, which deals with two performance criteria simultaneously. A semi-tractor trailer is used in present work and modeled with half vehicle model. Four types of linear, as well as non-linear, passive and semi-active suspension systems, are presented in this work. The control law is proposed for the semi-active suspension system using a PID controller to remove the need for passive damper along with active damper. Two objective optimization is performed using the Non-dominated Sorting Genetic Algorithm II (NSGA-II). Road Damage (RD) is taken as the first objective along with Goods Damage (GD) as the second objective. All problems are minimization problems. It is concluded based on Pareto front comparison of different suspension systems that the semi-active suspension system with the proposed control law performs well for HGV.


2016 ◽  
Vol 14 (2) ◽  
pp. 121 ◽  
Author(s):  
Mohammad Gudarzi

The paper investigates a non-fragile robust control strategy for a half-car active suspension system considering human-body dynamics. A 4-DoF uncertain vibration model of the driver’s body is combined with the car’s model in order to make the controller design procedure more accurate. The desired controller is obtained by solving a linear matrix inequality formulation. Then the performance of the active suspension system with the designed controller is compared to the passive one in both frequency and time domain simulations. Finally, the effect of the controller gain variations on the closed-loop system performance is investigated numerically.


2020 ◽  
Vol 53 (2) ◽  
pp. 14407-14412
Author(s):  
G. BEL HAJ FREJ ◽  
X. MOREAU ◽  
E. HAMROUNI ◽  
A. BENINE-NETO ◽  
V. HERNETTE

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