Steering Vector Control for Lateral Force Distribution of Electric Vehicles
Steering Vector Control for Lateral Force Distribution of Electric Vehicles
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DOI：
10.1109/vppc55846.2022.10003321
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发表时间：
2022-11
期刊：
影响因子：
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通讯作者：
An-Toan Nguyen-;B. Nguyen;Thanh Vo-Duy;M. C. Ta
中科院分区：
文献类型：
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作者：
An-Toan Nguyen-;B. Nguyen;Thanh Vo-Duy;M. C. Ta
本文提出了一种带有四轮独立转向（4WIS）电机的电动汽车（EV）的控制配置，称为“转向矢量控制”（SVC）策略。 SVC架构由三层分层呈现。上层根据侧滑角和横摆角速度的控制确定总侧向力和总横摆力矩。中间层根据轮胎总工作负载确定最佳轮胎侧向力分布。在下层，侧向力由二自由度 (2DOF) 控制器（前馈和反馈）控制。通过使用能量宏观表示（EMR）来呈现所研究车辆的建模和控制组织。仿真测试表明，与传统的前馈力分配方法相比，SVC可以提高横向稳定性，并减少总工作量6%。
This paper proposes a control configuration for electric vehicles (EVs) with four-wheel independent steering (4WIS) motors which is named “steering vector control” (SVC) strategy. The SVC architecture is hierarchically presented by three layers. The upper layer determines the total lateral force and the total yaw moment based on the control of sideslip angle and yaw rate. The middle layer determines optimum tire lateral force distribution depending on the total tire workload. In the lower layer, lateral forces are controlled by a two-degrees-of-freedom (2DOF) controller (feedforward and feedback). The modeling and control organization of the studied vehicle are presented by using energetic macroscopic representation (EMR). Simulation tests show that SVC can improve the lateral stability and reduce the total workload by 6% in comparison with the traditional feedforward force distribution approaches.