一个分数顺序的滑动模式控制器的设计,用于在自动驾驶中保持车道
Weilin Wu1,2, Shenghua Huang1,2, Jincheng Qin3,4
1The Center for Applied Mathematics of Guangxi, School of Physics and Electronic Information, Guangxi Minzu University, Nanning, 530006, China.
Scientific reports
|September 29, 2025
概括
一种新的分数顺序积分滑动模式控制 (FOISMC) 方法增强了智能车道保持. 这种先进的控制策略提高了准确性和稳定性,特别是在具有挑战性的条件下,如横风.
科学领域:
- 控制系统工程 控制系统工程
- 汽车工程 汽车工程
- 分数微积分的计算.
背景情况:
- 智能汽车需要强大的车道保持控制.
- 在高速和横风等复杂条件下,性能下降.
- 像TISMC和FOPID这样的现有方法也有局限性.
研究的目的:
- 提出一个改进的分数顺序积分滑动模式控制 (FOISMC) 方法.
- 为了提高智能车辆的车道保持控制性能.
- 在复杂的驾驶场景下解决性能下降的问题.
主要方法:
- 使用复合追踪误差构建了一个分数级的积分滑动表面.
- 设计了一个FOISMC控制器,具有改进的分数级可变功率达到法.
- 利用利亚普诺夫稳定理论进行有限时间的收分析.
- 使用 MATLAB/Simulink 和 CarSim 共同模拟验证了该策略.
主要成果:
- 与TISMC和FOPID相比,拟议的FOISMC方法显示出更高的性能.
- 最大的横向位置误差减少了10.1% (相对于TISMC) 和68.7% (相对于FOPID).
- 根的平均平方误差降低了8% (相对于TISMC) 和60.9% (相对于FOPID).
- 在高速和横风条件下实现了控制精度和稳定性的显著改进.
结论:
- 开发的FOISMC战略为智能车辆提供了增强的车道保持控制.
- 该方法提供了卓越的准确性和对干扰的稳定性.
- 对于先进的驾驶辅助系统来说,FOISMC是一个有前途的方法.
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