中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2015, Vol. 34 ›› Issue (3): 142-145.DOI: 10.3969/j.issn.1674-0696.2015.03.28

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三轴车辆电控液压式全轮转向系统设计与控制

袁磊,刘西侠,刘维平,金毅   

  1. 装甲兵工程学院 机械工程系,北京 100072
  • 收稿日期:2014-03-10 修回日期:2014-12-01 出版日期:2015-06-20 发布日期:2015-07-07
  • 作者简介:袁磊(1990-),男,云南宣威人,博士,主要从事车辆总体技术方面的研究。E-mail:yuanlei-scut@outlook.com。
  • 基金资助:
    国家自然科学基金项目(51305457)

Design and Control of Electro-Hydraulic All-Wheel Steering System of Three-Axle Vehicle

Yuan Lei, Liu Xixia, Liu Weiping, Jin Yi   

  1. Department of Mechanical Engineering, Academy of Armored Force Engineering, Beijing 100072, China
  • Received:2014-03-10 Revised:2014-12-01 Online:2015-06-20 Published:2015-07-07

摘要: 针对某型三轴车辆低速机动性不好、高速稳定性差的问题,通过对原车转向助力系统进行深入研究,设计了一套电控液压式全轮转向系统。针对全轮转向系统控制器设计难的问题,建立了车辆三自由度全轮转向数学模型,设计了全轮转向比例前馈和模糊控制反馈控制器。分别选取前轮转角为3°角阶跃输入,车速为20,80 km/h两种转向工况,对全轮转向车辆与原双前桥转向车辆进行对比仿真研究。结果表明:所设计的全轮转向控制器能够改善车辆各状态参数的响应特性,降低车辆侧滑几率,提高车辆低速机动性和高速操纵稳定性。

关键词: 车辆工程, 三轴车辆, 全轮转向, 数学模型, 模糊控制

Abstract: Aiming at the problem of bad maneuverability at low speed and poor stability at high speed for an all-wheel steering three-axle vehicle, a set of electric hydraulic all wheel steering system was designed by the study on the steering system of the original vehicle. Aiming at the problem of the design of all-wheel steering controller, the 3-DOF mathematical model was established, the proportional feed forward and fuzzy control feedback controller were designed. The three degree step of front wheel angle was selected at the speed of 20 and 80 km/h, for comparison study on the simulation result for the double front axle steering vehicle and the all-wheel steering vehicle. The results show that the all-wheel steering controller can improve the response characteristics of the vehicle state parameters, reduce the vehicle sideslip rate, and improve the low-speed maneuverability and high-speed handling and stability of vehicle.

Key words: vehicle engineering, three-axle vehicle, all-wheel steering, mathematic model, fuzzy control

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