Integrated Yaw and Roll Stability Control for Sport Utility Vehicles in Highway Turning Scenario
首发时间:2012-05-21
Abstract:This paper designs an integrated control strategy of vehicle yaw and rollover stability to enhance the active safety of highway vehicles in turning scenario. A rollover predictor is built based on Time-To-Rollover index. Modified Linear Quadratic Regulation is used in roll stability control, and Partial-Integral design is used in yaw stability control. With Carsim and MATLAB, simulations of fishhook maneuver and double lane-change test are conducted to evaluate the effectiveness of the control configuration and to validate the control method. The result shows that this controller performs well in maintaining vehicle roll and yaw stability. This study provides a theoretical basis towards a unified chassis control of coupled roll and yaw stability.
keywords: vehicle dynamics yaw stability control roll stability control simulation Carsim
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运动型多功能车辆高速公路弯道行驶横摆和侧翻稳定性综合控制研究
摘要:为增加高速公路弯道行驶车辆的主动安全性,同时提高车辆侧翻和横摆稳定性,本文利用主动转向和差动制动方法,设计了一种横摆和侧翻联合控制策略,分别采用PID和修正的LQR算法设计独立的横摆和侧翻控制器,并通过加权求和的方式得到联合控制下的附加方向盘转角和附加横摆力矩。同时,为减少控制策略对驾驶意图的干预,本文设计了基于TTR的侧翻预测器。经过Matlab和Carsim在典型工况下的仿真验证,该控制策略能有效地提高车辆在弯道行驶中的轨迹跟随能力和抗侧翻能力。
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运动型多功能车辆高速公路弯道行驶横摆和侧翻稳定性综合控制研究
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