毕业设计重型货车防侧翻控制研究

毕业设计（论文）论文题目重型货车防侧翻控制研究学生姓名学号所在院系专业班级机械设计制造及其自动化导师姓名职称完成日期摘要为了解决车辆的侧翻问题，本文选择某重型货车为研究对象，进行了防侧翻控制系统设计，具体内容如下：首先建立了使用TRUCKSIM建立车辆的参数模型，然后设置工况。并设置参数的输出量，可通过观察它们的变化来判断车辆的运动状态。接着在SIMULINK里设计出整个防侧翻系统，其中包括LTR计算模块、信号选择模块、控制器触发模块、控制器模块、决策模块等。最后使用simulink和trucksim软件对防侧翻控制系统进行联合仿真，对比在有无控制的情况下车辆的稳定性以及各种参数的变化。结果表示：该防侧翻控制系统能够提高车辆的侧翻稳定性，减少侧倾事故的发生。关键字：重型货车；防侧翻控制；模糊控制；差动制动；联合仿真装订线AbstractInordertosolvetheproblemofvehiclerollover,thispaperchoosesaheavygoodsvehicleastheresearchobject,anddesignstheanti-rollovercontrolsystem.Themaincontentsareasfollows:Firstly,theparametermodelofvehicleconstructionisestablishedbyusingTRUCKSIM.Andsettheoutputoftheparameters,youcanobservetheirchangestodeterminethemovementofthevehiclestate.Then,thewholeanti-rolloversystemisdesignedinSIMULINK,includingLTRcalculationmodule,signalselectionmodule,controllertriggermodule,controllermodule,decisionmoduleandsoon.Finally,simulinkandtrucksimsoftwarewereusedtosimulatetheanti-rollovercontrolsystem,andthestabilityofthevehicleandthechangeofvariousparameterswerecomparedwithandwithoutcontrol.Theresultsshowthattheanti-rollovercontrolsystemcanimprovetherolloverstabilityofthevehicleandreducetheoccurrenceofrolloveraccident.Keywords:heavygoodsvehicles;RollStabilityControl;fuzzycontrol;differentialbraking;jointsimulation目录１绪论.......................................................................................11.1重型货车的防侧翻控制系统的研究及意义.........................11.2国内外重型车辆防侧翻控制研究现状.................................11.2.1国外研究现状.....................................................................11.2.2国内研究现状.....................................................................1２基于TRUCKSIM的重型货车建模......................................32.1TRUCKSIM简介......................................................................32.2建立参数模型........................................................................32.2.1建立车体模型...................................................................32.2.2建立转向系统模型.............................................................32.2.3建立轮胎模型.....................................................................32.2.4建立悬架系统模型.............................................................52.2.5建立制动系统模型.............................................................32.3选取工况...............................................................................62.3.1Fishhook工况.....................................................................62.3.2双移线工况.........................................................................42.4本章小结...............................................................................4３防侧翻控制系统..................................................................53.1MATLAB和SIMULINK简介...................................................53.2基于TTR的侧翻预警算法....................................................53.2.1侧翻预警算法流程.............................................................53.2.2侧翻指标及侧翻条件的确定.............................................53.2.3LTR计算模块......................................................................63.2.4信号选择器.........................................................................63.2.5控制触发器.........................................................................63.3附加横摆力矩的决策............................................................63.3.1模糊控制理论.....................................................................63.3.2模糊控制的参数设置.........................................................63.3.3模糊规则的确定.................................................................73.3.4输入输出间的关系曲面图.................................................73.3.5控制器模块.........................................................................83.4附加横摆力矩分配................................................................83.4.1差动制动的防侧翻原理.....................................................83.4.2决策模块............................................................................83.5设计控制系统的整体结构....................................................83.6本章小结...............................................................................9４防侧翻控制系统的仿真验证...........................................194.1侧翻稳定性典型工况仿真..................................................194.1.1鱼钩转向工况...................................................................194.1.2双移线工况.......................................................................114.2本章小结.............................................................................12５结论.....................................................................................29参考文献.....................................................................................14致谢...........................................................................................151附录.............................................................................................15１绪论1.1重型货车的防侧翻控制系统的研究及意义自从工业革命以来，车辆开始走进人类的日常生活中。车辆越来越多，人类的生活、生产都得到了极大的提升，社会也有了巨大的进步。然而，社会在进步的同时，车祸也进入了我们的生活。侧翻事故在当今社会屡见不鲜，每一个例子都是生命与财产的严重损失。其中重型货车因为体积大、重心位置高等原因，在行驶的时候更易容易发成侧翻事故。例如图1-1，世界上这样的事故每天都在发生，为了想要减少甚至避免此类惨剧的发生，多年来国内外学者