阶层制动精确控制电动汽车电动水力复合制动系统的等级制动
1School of Mechanical Engineering, Zhejiang Sci-Tech University, Hangzhou, China.
ISA transactions
|January 28, 2025
概括
本研究介绍了用于电液制动系统的等级制动精确控制 (HBAC) 算法. HBAC通过考虑阻力力和优化扭矩分配来提高制动精度和能量回收.
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:
- 传统的电液制动系统往往忽略阻力,导致不准确的驾驶员意图跟踪和减少能量回收.
- 现有系统中的扭矩分配可能会损害控制可靠性和能源效率.
研究的目的:
- 为电液复合制动系统开发一种新的等级制动精确控制 (HBAC) 算法.
- 为了提高制动控制精度和能量回收效率.
主要方法:
- HBAC算法有三个层次:目标计算 (包括空气和轮胎滚动阻力),参数调整 (考虑道路粘附和负载转移),组织和协调 (通过液压制动扭矩补偿省略扭矩分配).
主要成果:
- 模拟显示车距离缩短: 111.5m (不同的粘附度), 40.8m (干青) 和 63.2m (湿青).
- 与传统策略相比,HBAC的能量回收效率提高了11.74% (粘附度不同),6.67% (干青) 和8.4% (湿青).
- 实验验证证了HBAC算法的有效性.
结论:
- 拟议的HBAC算法通过包括抵抗力来准确计算制动力.
- 在电液制动系统中,HBAC提高了能量回收效率和控制可靠性.
- 算法的有效性通过模拟和现实世界的实验来验证.
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