Implementation of Real-Time Vehicle Rollover Prevention System

2014 ◽  
Author(s):  
Chi-Chun Yao ◽  
Jin-Yan Hsu ◽  
Yu-Sheng Liao ◽  
Ming Hung Li
Keyword(s):  
Real Time ◽  
Rollover Prevention ◽  
Prevention System ◽  
Vehicle Rollover

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 Rollover Prevention System Dedicated to ATVs on Natural Ground

2012 ◽  
Vol 162 ◽  
pp. 505-514 ◽  
Author(s):  
Mathieu Richier ◽  
Roland Lenain ◽  
Benoit Thuilot ◽  
Christophe Debain
Keyword(s):  
Predictive Control ◽  
Control Algorithm ◽  
Load Transfer ◽  
Low Cost ◽  
Lateral Load ◽  
Dynamical Model ◽  
Rollover Prevention ◽  
Perception System ◽  
Prevention System ◽  
On Line

In this paper, an algorithm dedicated to light ATVs, which estimates and anticipates the rollover, is proposed. It is based on the on-line estimation of the Lateral Load Transfer (LLT), allowing the evaluation of dynamic instabilities. The LLT is computed thanks to a dynamical model split into two 2D projections. Relying on this representation and a low cost perception system, an observer is proposed to estimate on-line the terrain properties (grip conditions and slope), then allowing to deduce accurately the risk of instability. Associated to a predictive control algorithm, based on the extrapolation of riders action, the risk can be anticipated, enabling to warn the pilot and to consider the implementation of active actions.

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.

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