Vehicle Rollover Prevention Through a Novel Active Rollover Preventer

2017 ◽  
Author(s):  
Fengchen Wang ◽  
Yan Chen
Keyword(s):  
Control Strategies ◽  
Lateral Stability ◽  
Nonlinear Controller ◽  
Lateral Dynamics ◽  
Yaw Rate ◽  
Rollover Prevention ◽  
Active Front Steering ◽  
Mechanics Analysis ◽  
Vehicle Rollover ◽  
Braking Control

To assist vehicle rollover prevention and enhance vehicle roll motion safety, this paper proposes a novel active rollover preventer (ARPer) system, which consists of an in-wheel motor system moving along an orbit at the back of a vehicle. The roll and lateral dynamics of the vehicle equipped with the ARPer are modeled and mechanics analysis of the ARPer is presented as well. Based on the developed models, a Lyapunov nonlinear controller is designed for tracking a desired roll angle and a yaw rate when the impending rollover is detected. For a typical fishhook maneuver, two simulation cases are studied for different vehicle roof cargo loads, which represents different vehicle rollover properties without control. The CarSim®-Simulink co-simulation results show that compared with active front steering and differential braking control strategies, the APRer can successfully prevent the rollover propensity and maintain the vehicle lateral stability simultaneously.

scholarly journals Continuous Damping Control for Rollover Prevention with Optimal Distribution Strategy of Damping Force

2020 ◽  
Vol 10 (20) ◽  
pp. 7230
Author(s):  
Xu Zhang ◽  
Chuanxue Song ◽  
Shixin Song ◽  
Jingwei Cao ◽  
Da Wang ◽  
...  
Keyword(s):  
Load Transfer ◽  
Optimal Distribution ◽  
Damping Force ◽  
Damping Control ◽  
Rollover Prevention ◽  
Vehicle Rollover ◽  
Left And Right ◽  
Vehicle Suspension System ◽  
Dangerous Condition ◽  
Force Compensation

Vehicle rollover has always been a highly dangerous condition that can cause severe traffic casualties. In this work, a 14-degree-of-freedom vehicle model in MATLAB/Simulink is constructed with the vehicle suspension system dynamics. The validity of the model is verified by comparing with the CarSim model. Then an optimal distribution of damping force strategy with continuous damping control is proposed by combining the traditional lateral load transfer ratio control with optimized equations of suspension damping force. The damping force compensation of the left and right sides is the core of the optimal distribution of damping force strategy. The effectiveness and optimization effect of the optimal distribution of damping force strategy is proved by the simulation results under the fishhook and crosswind tests. The result shows that continuous damping control has evident control effects on vehicle rollover compared with passive suspension. The optimal distribution of the damping force strategy with continuous damping control has a great better performance than traditional continuous damping control, and it provides a certain assistance to vehicle handling stability.

scholarly journals Investigations on Vehicle Rollover Prevention Using LQG Regulator

2014 ◽  
Vol 2014 ◽  
pp. 1-11
Author(s):  
Binda Mridula Balakrishnan ◽  
Marimuthu Rajaram
Keyword(s):  
Control Strategies ◽  
Stability Margin ◽  
Initial Investigation ◽  
Rollover Prevention ◽  
Contact Information ◽  
Vehicle Rollover ◽  
The Stability ◽  
And Control

This paper presents results of an initial investigation into vehicle roll model and control strategies suitable for preventing vehicle untripped rollovers. For vehicles that are deemed to be susceptible to wheel-liftoff, various control strategies are implemented in simulation. In this study, the authors propose a method for rollover prevention that does not require such accurate contact information. The validity of the stability margin is shown, and it is used to realize rollover prevention in the direction of the roll. The primary assumption in their implementation is that the vehicle in question is equipped with a conventional controller system.

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