研究LPV-H∞的控制策略,用气弹的磁石化半活性悬浮剂
Gang Li1,2, Shaohua Zhang1,2, Jiantao Li1,2
1Key Laboratory of Vehicle Intelligent Equipment and Control of Nanchang City, East China Jiaotong University, Nanchang, 330013, China.
Scientific reports
|November 10, 2025
概括
一个新的线性参数变化H∞ (LPV-H∞) 控制策略显著提高了车辆驾驶舒适度和安全性. 这种先进的控制性能优于传统的H∞和被动系统,提高了关键性能指标.
科学领域:
- 车辆动力学和控制控制
- 汽车工程 汽车工程
- 机械电子学是什么意思 机械电子学
背景情况:
- 传统的H∞控制与实时参数变化和车辆悬架的外部干扰作斗争.
- 磁电气学 (MR) 阻尼器提供可适应的阻尼,但需要精确的控制策略.
- 半活性气动悬架的目的是通过积极调整减噪特性来提高驾驶舒适性和安全性.
研究的目的:
- 开发和验证一个线性参数可变的H (LPV-H) 控制,用于MR半活性空气悬挂系统.
- 解决传统H∞控制在处理时间变化的系统和参数不确定性的局限性.
- 为了提高车辆在各种道路条件下的驾驶舒适度,安全性和悬挂性能.
主要方法:
- 建立了前向和反向的磁观阻尼器模型,使用改进的过度波动触点模型和卷积神经网络 (CNN).
- 通过拉力测试和模拟数据比较验证了机械模型的准确性.
- 设计了一个LPV-H∞控制器,基于四分之一的车辆半活性空气悬架模型,使用LMI工具箱解决.
主要成果:
- 在各种道路表面 (速度碰撞,随机,梯形,坏,比利时) 上进行的模拟和现实测试证明了LPV-H∞战略的卓越性能.
- 与H和被动控制相比,LPV-H∞控制显示了弹性质加速,悬挂工作空间和动态轮胎变形的根平均平方 (RMS) 值的显著改善.
- 具体性能增长:LPV-H∞ 提高了弹质量的加速11.60%,悬挂工作空间14.26%,轮胎动态变形23.12%超过H∞ 控制.
结论:
- 拟议的LPV-H∞控制策略为车辆驾驶舒适性和安全性提供了显著的增强.
- LPV-H∞控制器有效地管理MR半活性气悬浮中的参数变化和外部干扰.
- 这种控制方法为优化车辆悬挂性能在各种驾驶条件下提供了强大而有效的解决方案.
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