基于动态滑动比限制的内轮电动汽车加速滑动调节和主动前方向盘的协调控制
Zhigang Zhou1, Wei Shen1, Fang Xu2
1College of Vehicle and Traffic Engineering, Henan University of Science and Technology, Luoyang, China.
PloS one
|October 23, 2025
概括
这项研究引入了电动汽车的新控制策略,以防止车轮旋转和雪上侧滑. 它通过优化扭矩分布和转向来提高车辆在冰冷条件下的稳定性和安全性.
科学领域:
- 车辆动力学和控制控制
- 电动汽车动力总成系统
- 汽车安全工程 汽车安全工程
背景情况:
- 车轮内电动汽车面临着稳定性问题,例如车轮旋转和雪上侧滑.
- 传统的方法优先考虑纵向力,损害横向控制,并无法防止粘合降解.
- 现有的策略缺乏活跃的滑动比限制,导致道路粘附性差.
研究的目的:
- 提出一个协调的控制策略,用于使用加速滑动调节 (ASR) 和主动前方向 (AFS) 的车轮电动汽车.
- 通过通过动态滑动比限制来保护轮胎侧向力边缘来提高防滑能力.
- 通过最佳扭矩分布,提高驾驶稳定性并最大限度地降低轮滑比.
主要方法:
- 开发了一种动态滑动比限制控制方法,以最大限度地提高横向力储备.
- 非主导排序基因算法-II (NSGA-II) 用于最佳的驱动扭矩分布.
- 基于滑动模式控制 (SMC) 的主动前方向盘 (AFS) 补偿曲时刻并确保稳定性.
主要成果:
- 在Matlab/Simulink-CarSim平台上的共模拟验证了该战略的有效性.
- 提出的策略成功地抑制了车轮旋转,并减少了横向路径跟踪错误.
- 在车辆纵向和横向稳定性方面都观察到显著的改善.
结论:
- 集成的ASR和AFS策略与动态滑动比限制增强了电动汽车在冰雪条件下的主动安全.
- 这种方法有效地协调纵向和横向动力学,提高车辆的整体性能和安全性.
- 该研究提供了一个强大的解决方案,用于在具有挑战性的低粘合性环境中管理稳定性挑战.
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