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线控转向汽车防侧翻稳定性控制 被引量:3

Anti-rollover stability control for steer-by-wire car
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摘要 通过线控转向(Steer-by-Wire,SBW)系统控制汽车方向盘转角提高某汽车在极限行驶中抗侧翻能力.建立SBW整车模型,基于紧急避让、紧急掉头和蛇行运动等3种危险操纵稳定性工况分析,得出该车易侧翻的结论.提出基于横向载荷转移率(Lateral Load Transfer Ratio,LTR)的车辆动态防侧翻控制算法,通过SIMULINK与Car Sim的联合仿真平台,建立转向优化控制模型.仿真结果表明在典型工况下该车防侧翻性能得到明显改善. To improve the anti-rollover performance of automobile in extreme driving situation, the steering wheel angle of an automobile is controlled by Steer-by-Wire (SBW) system. A SBW vehicle model is built. Three dangerous handling and stability conditions, including emergency avoidance, emergency turn and snake movement, are analyzed and it is concluded that the vehicle faces high rollover risk. A dynamic anti-rollover control algorithm is proposed on the basis of Lateral Load Transfer Ratio (LTR). Through the co-simulation platform of SIMULINK and CarSim, a steering optimization control model is established. The simulation results show that the anti-rollover performance is improved greatly under the typical working conditions.
出处 《计算机辅助工程》 2015年第5期28-32,共5页 Computer Aided Engineering
基金 同济大学第10期实验教学改革项目 浙江省吉利汽车研究院有限公司资助项目(20131657)
关键词 汽车 侧翻稳定性 线控转向 横向载荷转移率 优化控制 automobile rollover stability steer-by-wheel lateral load transfer ratio optimized control
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参考文献9

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二级参考文献27

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