混合动力汽车整车控制系统-学位论文.doc

PAGE\*MERGEFORMATIII摘要针对全球气候的逐步恶化、城市大气污染加剧以及石油资源过度消耗，许多国家都正在积极开发节能型、环保型汽车。混合动力车辆已成为汽车技术研究的热点，而总线通讯技术和分布式控制网络也在汽车电子领域广泛应用。混合动力汽车是传统燃油汽车和纯电动汽车两相结合的新车型，具有低污染和低油耗的特点，是当前解决节能问题、环保问题的切实可行的过渡方案。为实现混合动力车辆能量管理和运动控制，基于DSP单片机和CAN总线技术实现混合动力汽车整车能量控制器的设计，包括电源管理模块、DSP外围配置电路、CAN接口电路、SCI串口通信电路、LCD显示电路、数据采集电路。DSP接收由数据采集单元采集来的车辆实时运行信息，如：加速踏板位置、刹车踏板位置、车速等信息，进行计算，求出车辆运行需要的发动机转矩、ISG驱动电机转矩，并通过CAN总线以电信号的形式将输出传输到各个控制单元以实现整车的实时控制。相对传统内燃机汽车，本控制器取消了发动机怠速；提高了发动机平均负荷率；实现了制动能量回收。优化了车辆的经济性。在车辆需要频繁加减速和怠速起停的城市循环工况下，节能效果更加明显。关键词：CAN总线，DPS，混合动力汽车，整车能量控制ThePowerControlSystemOfHybridElectricVehicleAbstractWiththedeteriorationoftheglobalclimateandtheexcessiveconsumeoftheoilresources,developingenergy-efficientautomobilesbecomesanimportantdirectionintheautomobileindustry.Hybridelectricvehiclehasbecomehot-spotinautomotiveengineering,andbuscommunicationanddistributedcontrolnetworkarewidelyusedinautomotiveelectronics.Hybridelectricvehicleemployingtwopowersouces-neternalcombustionengineandelectricmotor,hasbeenacceptedworld-widelyasoneofthemostpromisingmethodstosolvethesetwoproblems.TorealizeenergymanagementandkineticcontrolofHEV,accordingtoDSPandCANcommunicationcarryoutthethevehiclepowercontrolmodule,includingthepowermanagementmodule,DSPmodule,CANcommunicationmodule,SCIcommunicationmoduleandLCDmodule.DSPreceivesthedatathatcollectedofthevehiclethattheunitcollectsbythedatatogoaninformation,suchas:Acceleratepedalpositionandbrakingpedalposition,speedinformation,carryonacalculation,begthemotorthatavehiclecirculatesademandtoturnandISGtodriveelectricalengineeringtoturn,andpasstheCANcommunicationdeliverstheexportationtoeachcontrolunitbytheformoftelecommunicationwithcarryoutthevehiclepowercontrolmodule.Oppositetraditionalinternalcombustionenginecar,thiscontrollercanceledmotorDaisoon;Raisedamotortheburdenrateisontheaverage;Carriedouttomakeanamountofkineticenergyrecall.Itwasexcellenttoturntheeconomyofthevehicle.EconomizeonenergyeffectUndercirculatingworkconditioninthecitythatneedstobemultifarioustoaddandsubtractsoonto