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一个半活跃悬架系统的预览控制,辅以一个活跃的空气动力学表面
Syed Babar Abbas1, Iljoong Youn1
1Department of Mechanical and Aerospace Engineering, Gyeongsang National University, 501, Jinju-daero, Jinju-si 52828, Gyeongsangnam-do, Republic of Korea.
Sensors (Basel, Switzerland)
|November 27, 2025
概括
本研究引入了半活性悬挂系统 (SASS) 和活性空气动力学表面 (AAS) 的新控制策略. 该系统通过减少加速变化和增强道路保持来显著改善车辆动态.
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:
- 半活性悬架系统 (SASS) 为车辆的驾驶舒适性和操控提供了节能解决方案.
- 活性空气动力学表面 (AAS) 可以进一步提高车辆的动态性能.
- 优化SASS和AAS组合的控制策略对于最大化收益至关重要.
研究的目的:
- 开发和评估一个统一的最佳预览控制策略,用于一个SASS和一个控制的阻尼器和AAS.
- 通过使用简化的车辆模型,研究乘客舒适度和道路保持能力之间的权衡.
- 评估综合系统所提供的能源效率和动态性能改进.
主要方法:
- 为控制算法开发,采用了一种简化的二线式2DOF四分之一车模型.
- 一个预览控制策略被设计用于管理阻尼器变化和AAS控制.
- 基于MATLAB®的数值模拟使用各种道路刺激 (颠,青,波信号) 进行.
主要成果:
- 拟议的系统在不同的道路条件下显著改善了车辆动态性能.
- 观察到汽车车身垂直加速的平均平方值大幅减少.
- 通过减少抓地力变化,同时保持悬挂约束,实现了增强的车轮与道路保持.
结论:
- 协调的最佳预览控制策略有效地整合了SASS和AAS,以获得优越的车辆动态.
- 该系统提供了驾驶舒适度和道路保持之间的令人信服的平衡,能耗最小.
- 数字模拟验证了拟议的控制方法的增强性能和稳定性.
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