scholarly journals Skyhook Surface Sliding Mode Control on Semi-Active Vehicle Suspension System for Ride Comfort Enhancement

Engineering ◽  
2009 ◽  
Vol 01 (01) ◽  
pp. 23-32 ◽  
Author(s):  
Yi Chen
Keyword(s):  
Sliding Mode Control ◽  
Ride Comfort ◽  
Sliding Mode ◽  
Suspension System ◽  
Vehicle Suspension ◽  
Mode Control ◽  
Vehicle Suspension System ◽  
Active Vehicle Suspension System

scholarly journals Comparative Analysis of Different Model-Based Controllers Using Active Vehicle Suspension System

Algorithms ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 10 ◽  
Author(s):  
Yumna Shahid ◽  
Minxiang Wei
Keyword(s):  
Sliding Mode Control ◽  
Sliding Mode ◽  
Suspension System ◽  
Vehicle Suspension ◽  
Linear Quadratic ◽  
Passive Suspension ◽  
Mode Control ◽  
Uncertain Dynamics ◽  
Passive Suspension System ◽  
Vehicle Suspension System

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.

Sliding Mode Control for Vibration Comfort Improvement of a 7-DOF Nonlinear Active Vehicle Suspension Model

2019 ◽  
Vol 31 (1) ◽  
pp. 95-103 ◽  
Author(s):  
Zhiyong Yang ◽  
Shan Liang ◽  
Yu Zhou ◽  
Di Zhao ◽  
◽  
...  
Keyword(s):  
Sliding Mode Control ◽  
Ride Comfort ◽  
Control Method ◽  
Sliding Mode ◽  
Vehicle Suspension ◽  
Suspension Systems ◽  
Mode Control ◽  
Before And After ◽  
Nonlinear Vibration Control ◽  
Suspension Model

Owing to the presence of nonlinear elements of a vehicle, when the vehicle goes through a rough-road-surface, such as consecutive speed control humps (SCHs), unexpected vibrations will exist in vehicle suspension systems, such as chaos, bifurcation, and quasi-periodic so on. In this paper, we first study the possibility of chaotic vibration of the seven degree-of-freedom (7-DOF) full vehicle model under consecutive SCHs on the highway. Then, a non-chattering sliding mode control method is proposed. The effectiveness of the sliding mode control method for the nonlinear vibration control of the vehicle suspension model is verified by numerical simulation. By comparing the changes in the vibration amplitude of the vehicle in the same velocity region before and after the control, we determine whether the ride comfort is improved. The results show that not only is the system’s chaos vibration effectively controlled, but also the ride comfort is significantly improved. The results can be applied in the design of a vehicle and in pavement of road humps.

scholarly journals Nonlinear Predictive Sliding Mode Control for Active Suspension System

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Dazhuang Wang ◽  
Dingxuan Zhao ◽  
Mingde Gong ◽  
Bin Yang
Keyword(s):  
Sliding Mode Control ◽  
Ride Comfort ◽  
Sliding Mode ◽  
Approximation Error ◽  
Nonlinear Effects ◽  
Active Suspension ◽  
Adaptive Controller ◽  
Suspension System ◽  
Mode Control ◽  
Stability Performance

An active suspension system is important in meeting the requirements of the ride comfort and handling stability for vehicles. In this work, a nonlinear model of active suspension system and a corresponding nonlinear robust predictive sliding mode control are established for the control problem of active suspension. Firstly, a seven-degree-of-freedom active suspension model is established considering the nonlinear effects of springs and dampers; and secondly, the dynamic model is expanded in the time domain, and the corresponding predictive sliding mode control is established. The uncertainties in the controller are approximated by the fuzzy logic system, and the adaptive controller reduces the approximation error to increase the robustness of the control system. Finally, the simulation results show that the ride comfort and handling stability performance of the active suspension system is better than that of the passive suspension system and the Skyhook active suspension. Thus, the system can obviously improve the shock absorption performance of vehicles.

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