基于分数顺序PID位置控制的电油气动式主动悬挂的研究
Yaozeng Hu1, Jianze Liu1, Zhuang Wang1
1Institute of Mechanical and Automotive Engineering, Qingdao University of Technology, Qingdao 266520, China.
Sensors (Basel, Switzerland)
|March 13, 2024
概括
本研究引入了一种使用分数顺序PID控制的活性悬挂系统,用于电气油气驱动器. 该系统通过优化基于道路条件的减压来提高车辆性能,优于传统方法.
科学领域:
- 汽车工程 汽车工程
- 控制系统 控制系统
- 机械电子学是什么意思 机械电子学
背景情况:
- 活动悬架系统旨在通过实时调节减噪来提高车辆动态和驾驶舒适度.
- 传统的悬挂控制方法经常与非线性和复杂的动态作斗争.
- 分数顺序控制在动态系统中提供了增强性能的潜力.
研究的目的:
- 提出并验证一个使用分数顺序PID (FOPID) 位置反控制的活性悬挂系统,用于电油和天然气执行器.
- 为了优化悬挂系统的缓冲系数,以根据道路条件进行主动控制.
- 将拟议的FOPID控制与传统的线性和PID控制方法的性能进行比较.
主要方法:
- 开发了一种具有FOPID位置反控制的电气油气执行器.
- 使用来自传感器的道路粗度数据来调整减噪标准.
- 采用粒子群优化来确定在不同的道路斜坡下最佳控制参数.
- 为分数顺序非线性悬挂模型建造和测试模拟和实验平台.
主要成果:
- 与传统的线性模型相比,分数级非线性悬架模型的准确性更高.
- 性能指数显示,与线性模型相比,精度提高超过18.5%.
- 积极悬架系统显著优化了相对于被动悬架的车身加速 (89.8%),悬架动态偏移 (56.7%) 和轮胎动态负载 (73.4%).
- 与传统的PID控制电路相比,FOPID控制显示出更高的性能.
结论:
- 拟议的基于FOPID的主动悬架系统有效地控制和优化车辆悬架动态.
- 分数顺序控制为非线性悬挂系统提供了相对于传统方法的显著优势.
- 该研究为推进主动悬挂技术提供了坚实的理论和经验基础.
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