scholarly journals Discrete-time sliding mode control for MR vehicle suspension system

2009 ◽  
Vol 149 ◽  
pp. 012080 ◽  
Author(s):  
J W Sohn ◽  
S B Choi ◽  
N M Wereley
Algorithms ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 10 ◽  
Author(s):  
Yumna Shahid ◽  
Minxiang Wei

This paper deals with the active vibration control of a quarter-vehicle suspension system. Damping control methods investigated in this paper are: higher-order sliding mode control (HOSMC) based on super twisting algorithm (STA), first-order sliding mode control (FOSMC), integral sliding mode control (ISMC), proportional integral derivative (PID), linear quadratic regulator (LQR) and passive suspension system. Performance comparison of different active controllers are analyzed in terms of vertical displacement, suspension travel and wheel deflection. The theoretical, quantitative and qualitative analysis verify that the STA-based HOSMC exhibits better performance as well as negate the undesired disturbances with respect to FOSMC, ISMC, PID, LQR and passive suspension system. Furthermore, it is also robust to intrinsic bounded uncertain dynamics of the model.


2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Uiliam Nelson L. T. Alves ◽  
José Paulo F. Garcia ◽  
Marcelo C. M. Teixeira ◽  
Saulo C. Garcia ◽  
Fernando B. Rodrigues

This paper addresses the problem of control of an active suspension system accomplished using a computer. Delay in the states due to the acquisition and transmission of data from sensors to the controller is taken into account. The proposed control strategy uses state predictors along with sliding mode control technique. Two approaches are made: a continuous-time and a discrete-time control. The proposed designs, continuous-time and discrete-time, are applied to the active suspension module simulator from Quanser. Results from computer simulations and experimental tests are analyzed to show the effectiveness of the proposed control strategy.


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