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一个基于NMPC的集成纵向和横向车辆稳定控制,基于双层扭矩分布
Xu Bai1, Yinhang Wang1, Mingchen Jia1
1College of Automotive Engineering, Jilin University, Changchun 130025, China.
Sensors (Basel, Switzerland)
|July 13, 2024
概括
本研究介绍了使用模型预测控制的电动汽车集成底盘控制系统. 该系统将车性能提高32%,并将车距离减少15%,改善车辆的整体稳定性.
科学领域:
- 汽车工程 汽车工程
- 控制系统 控制系统
- 电动汽车技术 电动汽车技术
背景情况:
- 电动汽车 (EV) 的进步推动了对复杂的电气控制系统的需求.
- 在电动汽车中,驱动电缆系统 (驱动,制动,方向盘) 越来越常见.
- 冲突的控制目标和系统干扰需要集成的底盘控制.
研究的目的:
- 为纯电动商用车辆的纵向动力学提出基于预测控制 (MPC) 的集成底盘控制系统模型.
- 集成关键功能,包括加速滑动调节 (ASR),制动力分配,反锁制动系统 (ABS) 和直接曲面时刻控制 (DYC).
- 为了提高车辆在驾驶和制动动作时的稳定性和性能.
主要方法:
- 车辆关键部件的分析和建模,包括电机制动系统 (EMB).
- 开发基于MPC的控制器,采用双层扭矩分配策略.
- 使用Matlab/Simulink进行模拟,以验证拟议的控制策略.
主要成果:
- 与不受控制的条件相比,平均制动减速增加了32%,制动距离减少了15%.
- 更快地过渡到平稳的驾驶,时间缩短了1.5秒至5秒.
- 控制车辆侧向稳定性参数的显著改善.
结论:
- 拟议的基于MPC的集成底盘控制系统有效地管理电动商用车的纵向动力学.
- 该系统在制动效率,加速度和横向稳定性方面表现出卓越的性能.
- 这种方法为解决现代电动汽车控制挑战提供了强大的解决方案.
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