分数顺序的自适应模糊分散的跟踪控制器用于steer-by-wire系统
Wei Li1, Chunyan Wang1, Wanzhong Zhao1
1Department of Vehicle Engineering and Jiangsu Engineering Research Center of Vehicle Distributed Drive and Intelligent Wire Control Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; Department of Vehicle Engineering and Jiangsu Engineering Research Center of Vehicle Distributed Drive and Intelligent Wire Control Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210001, China.
ISA transactions
|September 9, 2025
概括
一个新的分数顺序自适应模糊分散跟踪控制 (FAFDTC) 策略增强了steer-by-wire (SbW) 系统. 这种先进的控制方法大大减少了前轮角度跟踪错误,提高了车辆的方向精度和稳定性.
科学领域:
- 汽车工程 汽车工程
- 控制系统理论 控制系统理论
- 机械电子学是什么意思 机械电子学
背景情况:
- 转向电缆 (SbW) 系统对于准确的车辆转向至关重要.
- D-Q轴的合,时间变化的电机参数和负载干扰会降低跟踪准确度.
- 现有的控制策略与SbW系统的复杂动态作斗争.
研究的目的:
- 开发一个强大的控制策略,在SbW系统中准确地跟踪前轮角度.
- 为了应对D-Q轴合,参数变化和外部干扰所带来的挑战.
- 提高SbW系统的整体性能和可靠性.
主要方法:
- 开发了一个分数顺序的SbW互连系统模型,以捕捉非线性和时间变化的动态.
- 具有辅助功能的二级自适应模糊逻辑系统 (FLS) 设计用于功能估计和错误补偿.
- 一个分数顺序命令过的自适应后退控制器与FLS集成,用于精确的跟踪控制.
主要成果:
- 拟议的分数顺序自适应模糊分散跟踪控制 (FAFDTC) 策略表现出卓越的性能.
- 与现有的控制器相比,FAFDTC减少了前轮角度跟踪误差的48.58%和59.78%.
- 控制器确保了高跟踪精度和对干扰的稳定性.
结论:
- 该FAFDTC战略有效地减轻了SbW系统中跟踪准确性的恶化.
- 拟议的方法在转向精度和系统稳定性方面提供了显著的改进.
- 这项研究证实了FAFDTC在SbW应用中的有效性和优越性.
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