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兵工学报 ›› 2015, Vol. 36 ›› Issue (8): 1391-1397.doi: 10.3969/j.issn.1000-1093.2015.08.003

• 论文 • 上一篇    下一篇

三轴车辆全轮转向滑模控制器设计

袁磊, 刘维平, 刘西侠   

  1. (装甲兵工程学院 机械工程系, 北京 100072)
  • 收稿日期:2014-09-17 修回日期:2014-09-17 上线日期:2015-10-16
  • 作者简介:袁磊(1990—),男, 博士研究生
  • 基金资助:
    国家自然科学基金项目(51305457)

Design of Sliding Mode Controller for All-wheel Steering System of Three-axle Vehicle

YUAN Lei, LIU Wei-ping, LIU Xi-xia   

  1. (Department of Mechanical Engineering, Academy of Armored Force Engineering, Beijing 100072, China)
  • Received:2014-09-17 Revised:2014-09-17 Online:2015-10-16

摘要: 为深入研究三轴全轮转向车辆的动力学行为,建立了考虑车轮非线性特性和车辆载荷变化的整车模型。为提高三轴全轮转向车辆的操纵稳定性,以三轴双前桥转向车辆横摆率和零质心侧偏角为理想跟踪目标,基于滑模变结构控制理论,设计了三轴车辆全轮转向滑模控制器。对比了双前桥转向车辆、零质心侧偏角比例控制全轮转向车辆和滑模控制全轮转向车辆在不同工况下的响应性能,结果表明:设计的全轮转向滑模控制器可将车辆质心侧偏角控制在较小范围,能很好地跟随车辆理想横摆角速度,同时还能够较好地抵抗侧向风和路面条件变化的干扰。为深入研究三轴全轮转向车辆的动力学行为,建立了考虑车轮非线性特性和车辆载荷变化的整车模型。为提高三轴全轮转向车辆的操纵稳定性,以三轴双前桥转向车辆横摆率和零质心侧偏角为理想跟踪目标,基于滑模变结构控制理论,设计了三轴车辆全轮转向滑模控制器。对比了双前桥转向车辆、零质心侧偏角比例控制全轮转向车辆和滑模控制全轮转向车辆在不同工况下的响应性能,结果表明:设计的全轮转向滑模控制器可将车辆质心侧偏角控制在较小范围,能很好地跟随车辆理想横摆角速度,同时还能够较好地抵抗侧向风和路面条件变化的干扰。

关键词: 控制科学与技术, 三轴车辆, 全轮转向, 理想模型, 滑模控制器

Abstract: For further research on the dynamic behavior of three-axle vehicle with all-wheel steering system, an all-wheel steering vehicle dynamic model is built considering the nonliner characteristics and load changes of wheels. To improve the handling stability of three-axle vehicle with all-wheel steering system, an all-wheel steering controller is designed based on the siding mode variable structure control theory, which can follow a reference model that contains an ideal yaw rate of the double-front-axle steering vehicle and the zero side-slip model. The double-front-axle steering vehicle, the all-wheel steering vehicle with zero side-slip angle proportional controller and the all-wheel steering vehicle with sliding mode controller are compared under different conditions. The result shows that the siding mode controller can ensure the smaller slide-slip angle and the ideal yaw rate, which can resist the interference from lateral wind and road conditions.

Key words: control science and technology, three-axle vehicle, all-wheel steering, ideal model, sliding mode controller

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