Integrated Effects of Active Suspension and Rear-Wheel Steering Control Systems on Vehicle Lateral Stability

2017 ◽  
Author(s):  
Liang Wu ◽  
Fangwu Ma ◽  
Yongfeng Pu ◽  
HongBin Yin
Keyword(s):  
Control Systems ◽  
Active Suspension ◽  
Rear Wheel ◽  
Lateral Stability ◽  
Steering Control

scholarly journals Adaptive Semi-Active Suspension and Cruise Control through LPV Technique

2020 ◽  
Vol 11 (1) ◽  
pp. 290
Author(s):  
Hakan Basargan ◽  
András Mihály ◽  
Péter Gáspár ◽  
Olivier Sename
Keyword(s):  
Control Systems ◽  
Active Suspension ◽  
Cruise Control ◽  
Linear Parameter Varying ◽  
Trade Off ◽  
Look Ahead ◽  
Vehicle Velocity ◽  
Suspension Control ◽  
Road Data ◽  
Terrain Characteristics

Several studies exist on topics of semi-active suspension and vehicle cruise control systems in the literature, while many of them just consider actual road distortions and terrain characteristics, these systems are not adaptive and their subsystems designed separately. This study introduces a new method where the integration of look-ahead road data in the control of the adaptive semi-active suspension, where it is possible to the trade-off between comfort and stability orientation. This trade-off is designed by the decision layer, where the controller is modified based on prehistorical passive suspension simulations, vehicle velocity and road data, while the behavior of the controller can be modified by the use of a dedicated scheduling variable. The adaptive semi-active suspension control is designed by using Linear Parameter Varying (LPV) framework. In addition to this, it proposes designing the vehicle velocity for the cruise controller by considering energy efficiency and comfort together. TruckSim environment is used to validate the operation of the proposed integrated cruise and semi-active suspension control system.

The Influence of Frame Flexibility on the Lateral Stability of Motorcycles

1974 ◽  
Vol 16 (2) ◽  
pp. 117-120 ◽  
Author(s):  
R. S. Sharp
Keyword(s):  
Mathematical Model ◽  
Rear Wheel ◽  
Lateral Stability

A mathematical model of a rigid-framed motorcycle running freely is extended to include the effects of torsional flexibility between the rear wheel and the frame.

Vehicle Handling and Stability Enhancement With Active Steering Control Systems

2004 ◽  
Author(s):  
Shih-Ken Chen ◽  
William C. Lin ◽  
Yuen-Kwok Steve Chin ◽  
Xiaodi Kang
Keyword(s):  
Rear Wheel ◽  
Front Wheel ◽  
Pole Placement ◽  
Optimization Approach ◽  
Steering Control ◽  
Response Characteristics ◽  
Active Steering ◽  
Road Surfaces ◽  
Response Optimization ◽  
Stability Enhancement

This paper presents an analysis and comparison of a vehicle with active front steering and rear-wheel steering. Based on linear analysis of base vehicle characteristics under varying speed and road surfaces, desirable vehicle response characteristics are presented and a set of performance matrices for active steering systems is formulated. Using pole-placement approach, controllability issues under active front wheel steering and rear- wheel steering controls are discussed. A frequency response optimization approach is then used to design the closed-loop controllers.

scholarly journals The Effect of Large-Scale Structures on the Stability of Coal-Face Steering

1984 ◽  
Vol 198 (1) ◽  
pp. 29-40 ◽  
Author(s):  
J B Edwards
Keyword(s):  
Control Systems ◽  
Large Scale ◽  
Steering System ◽  
Rigid Support ◽  
Steering Control ◽  
Coal Face ◽  
Large Scale Structures ◽  
General Terms ◽  
Scale Structures ◽  
The Stability

Simplified models of piecewise rigid support structures for power-loaders operating on longwall coal-faces are shown to be amenable to analysis by z-transform methods. Such analysis predicts that increasing sufficiently the length of the sub-sections of the structure (compared to the inherent delay within the vertical steering system of the machine) should stabilize the vertical steering of the entire coalface. Increasing the width of the structure to embrace more than two consecutive cut floors is shown analytically to eliminate the need for electronic tilt-feedback in control systems. In general terms, these analytical predictions are shown to hold good in detailed simulations of the system that eliminate the simplifications demanded by the analytical method. The general conclusion of the work is therefore that an increase in the size of support structure segments can potentially reduce the complexity of steering control systems. The size-increase must be substantial, e.g. to four to five times the size of conventional structures.

Vehicle Active Rear Wheel Steering Control Based on a Variable Transmission Ratio Control Strategy

2014 ◽  
Vol 709 ◽  
pp. 267-271 ◽  
Author(s):  
Yun Sheng Tan ◽  
Huan Shen ◽  
Man Hong Huang ◽  
Si Ran Zhang
Keyword(s):  
Control Strategy ◽  
Sliding Mode ◽  
Rear Wheel ◽  
Transmission Ratio ◽  
Steering Control ◽  
Yaw Rate ◽  
Human Driver ◽  
Variable Transmission ◽  
Mode Technique ◽  
The Ideal

In order to obtain the ideal steering performance, an active rear wheel steering (ARS) controller, based on the variable transmission ratio control strategy, is developed in this paper. ARS controller using sliding mode technique is designed to follow the desired yaw rate which is calculated by the ideal variable transmission ratio. Simulation result shows that, the proposed control strategy both obtains desired steering performance and provides the obvious benefits for the human driver.

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