拉线操纵式离合器电子线控系统设计毕设论文.doc

本科学生毕业设计 拉线操纵式离合器电子线控系统设计 院系名称： 汽车与交通工程学院 专业班级： 车辆工程B07-2班 学生姓名： 李程 指导教师： 崔宏耀 职 称： 副教授 黑 龙 江 工 程 学 院 二○一一年六月 The Graduation Design for Bachelors Degree Design of Electronic Clutch Control System of Automotive Engines Candidate：Li Cheng Specialty：Vehicles Engineering Class：B07-2 Supervisor：Associate Professor Cui Hongyao Heilongjiang Institute of Technology June 2011·Harbin  摘 要 随着汽车电子技术、自动控制技术的逐步成熟和汽车网络通信技术的广泛应用，汽车线控技术也逐步得到青睐和深入研究汽车未来的发展趋势。 汽车线控技术就是将驾驶员的操纵动作经过传感器变成电信号，通过电缆直接传输到执行机构的一种系统。目前包括线控换档系统、线控制动系统、线控悬架系统、线控增压系统、线控油门系统及线控转向系统。其中线控转向系统在高级轿车、跑车及概念车上有广泛的应用，它为自动驾驶提供了良好的平台汽车离合器操纵形式有液压和拉线式两种拉线式布置方便，摩擦损失大机械式受车架、车身变形影响大两种机械式操纵机构的比较杆系传动优点：结构简单；成本低；寿命长；可靠性高；缺点：关节点多，摩擦损失大，不适合远距离操纵，受车身或车架的变形影响。拉线传动优点：结构简单；成本低；克服了杆系传动的不适合远距离操纵，受车身或车架的变形影响缺点；可采用吊挂式的踏板；缺点：寿命短，拉伸刚度小；拉伸变形导致增加踏板行程。PWM控制；控制策略；传感器  ABSTRACT As automobile electronic technology ， Automatic control technology gradually mature and car network communications technology is widely used ， Automotive wire control technology is also gradually gain favour is car further research and the future trend of development. Automotive wire control technology is the driver through sensor into electrical signal manipulation of action, Through the cable directly transmission to the actuator a system. Currently include wire control shift system, line control servo system, line control suspension system, Wire control the pressurization system, line oil-control door system and wire control steering system. Including wire control steering system in limousines, sports car And concept car, it is widely used for automated driving to provide a good platform. Clutch manipulations hydraulic and farrowed type two kinds. Including farrowed type decorates convenient, Friction loss is big, By frame, body spurt type deformation great influence, Two kinds of mechanical control mechanisms of comparative bar transmission advanta