在转向制动条件下,集成控制制动或滚动稳定性
Jia Chen1, Yihang Liu2, Renping Liu2
1Automotive Engineering School, Chengdu Aeronautic Polytechnic, Chengdu, 610100, China. chenjia421@163.com.
Scientific reports
|November 30, 2023
概括
本研究介绍了电动汽车的综合控制策略,以防止在高速转向制动过程中翻转. 该系统通过动态调节制动力来确保制动安全和稳定.
科学领域:
- 汽车工程 汽车工程
- 控制系统 控制系统
- 车辆动力学 车辆动力学
背景情况:
- 高速方向盘制动对SUV造成翻车风险,原因是重心高,轨道窄.
- 轮胎锁定和侧滑是紧急机动期间的重大危险.
研究的目的:
- 为电动汽车制动,曲折和滚动稳定性制定综合控制策略.
- 为了减轻翻转风险,同时确保车辆安全,在激进的方向盘和制动.
主要方法:
- 为监督控制器开发了一个非线性车辆预测模型.
- 根据车辆状态和翻车指数,定义了四种控制模式.
- 非线性模型预测控制用于纵向制动力分布和再生/摩擦制动扭矩分配.
主要成果:
- 拟议的综合控制策略在模拟中有效防止了车辆翻转.
- 在方向盘制动操作期间,保持了制动安全性和曲折稳定性.
- 该策略在高粘附和低粘附路面上均表现出有效性.
结论:
- 开发的制动-yaw-roll稳定性综合控制策略提高了电动汽车在高速转向制动期间的安全性.
- 基于实时车辆状态的制动力的动态调整对于稳定性至关重要.
- 这种方法提供了一个强大的解决方案,以防止运动型多功能车辆的翻车.
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