项目名称: 车辆转向系统和互联悬架集成控制策略及智能优化方法研究
项目编号: No.51275162
项目类型: 面上项目
立项/批准年度: 2013
项目学科: 机械、仪表工业
项目作者: 周兵
作者单位: 湖南大学
项目金额: 80万元
中文摘要: 为提高汽车的舒适性、操纵性和主动安全性,各种动力学控制系统,如电动助力转向系统(EPS)、主动前轮转向系统(AFS)、主动悬架系统(ASS)等相继应用到现代汽车上。目前对各个单独子系统的研究已经取得了许多的成果,但是由于悬架子系统与转向子系统之间的耦合影响,单独对每个子系统的控制未必能获得最优的综合性能,所以对悬架和转向的集成控制便显得非常必要。因此,本项目针对主动前轮转向、电动助力转向和互联悬架之间的相互关系、协调机理及对整车动力学控制的进行研究,基于分层递阶和智能优化理论,对其进行集成控制研究和试验研究,在此基础上进行基于提升行驶舒适性、操纵稳定性和安全性等综合性能控制方法和基于遗传算法的多目标优化方法的研究,这些问题的解决是实现底盘集成控制的关键技术之一。该项目的研究方法可以广泛应用到其它形式的底盘集成控制系统中,因此该课题的研究具有重要的理论意义和实用价值。
中文关键词: 互联悬架;电动助力转向;前轮主动转向;控制策略;优化方法
英文摘要: In order to improve comfort, handling and active safety performance of vehicle,different dynamic control system,such as AFS(active front-wheel steering),EPS(electrical power steering), ASS(active suspension system),were applied on the modern vehicle.At present,these all had the relatively mature theory in respective research area,but because the suspension system and the steering system are not the two isolated systems,but has certainly mutually the coupling function,Therefore the simple superimposition control can not obtain the most superior performance of the two systems,therefore as obtain the more superior entire vehicle overall performance to have to rely on the two systems control coordinated,namely,integrated control.So, the project will do some research on the relationship among the AFS,EPS and interconnected suspension ,and do deeply research on integrated control and experimentation based on layered hierarchical control and intelligent optimization theory. In order to achieve better vehicle comfort, handling and active safety performance ,research on integrated control and intelligent optimization will be carried on in the project, which is one of the key technology of integrated control.The method of the project can be used to other chassis integrated control,so the research must be important theory
英文关键词: Interconnected Suspension;EPS;AFS;Control Strategy;Intelligence optimization