并联充电式混合动力驱动系统故障诊断分析仪开发

发布时间：2018-01-04 00:07

本文关键词：并联充电式混合动力驱动系统故障诊断分析仪开发　出处：《武汉理工大学》2011年硕士论文　论文类型：学位论文

【摘要】：随着全球汽车保有量的增加,石油的供应日趋紧张,石油资源的枯竭正在加剧,同时汽车排入大气中的有害污染物导致空气中有害污染物增加,环境污染问题日益严重,新能源汽车以其低能耗、低污染等特点成为当前各汽车企业和科研机构的研发热点。混合动力汽车以其低排放,低能耗,以及兼有传统汽车和新能源汽车双方的优点,引起各政府和各大汽车公司的关注。但是混合动力汽车控制系统和功能比传统的汽车复杂很多,因此在混合动力汽车开发的过程中,其开发和调试诊断的成本、难度都高于传统汽车。本文分析对比了几种混合动力汽车的布置形式,在此基础上提出了并联充电式的混合动力系统的基本结构,并且对发动机、电机、变速箱、电池、整车控制单元等基本组成部件进行分析介绍。同时本文还研究了国内外混合动力汽车和汽车诊断的发展现状,分析了各种汽车故障诊断方法,在对并联充电式混合动力驱动系统进行详细分析的基础上,提出了适合合于充电式混合动力驱动系统的故障诊断仪的基本构架。在分析了诊断仪系统的基本需求后,对系统的软件和硬件进行了选型,选择PLC、EVIEW触摸屏作为系统的硬件基础,选择EVIEW自带的EV5000作为系统与混合动力驱动系统整车控制单元通讯程序和系统显示、诊断界面的编程软件。根据系统的基本需求,分析了并联充电式混合动力驱动系统可能出现的故障种类,并在整车控制单元的控制程序中编写了相关的子程序对可能出现的故障进行了判断,判断后生成一个标志位信号,这个标志位和EVIEW中制作的故障指示界面中故障指示灯地址相同,这样故障信号就从整车控制单元传到触摸屏中,同时设置驱动系统各参数在PLC中的地址和触摸屏中的制作的显示界面中的各元件的地址相同。通过这个通讯程序,就可以将系统各参数的实时状态和出现的故障传到EVIEW触摸屏中,实现了对系统的实时监测和故障的报警。实验表明,诊断仪能够对驱动系统在启动、加速、换档、制动过程中各参数的状态进行实时的显示,并且在系统出现故障时能够及时的在诊断界面提示报警,基本实现了对于并联充电式混合动力驱动系统的故障诊断,并且为后续研究开发提供了必要的经验。
[Abstract]:With the increase of global automobile ownership, the supply of oil is becoming increasingly tight, the depletion of oil resources is increasing, and the harmful pollutants emitted into the atmosphere by cars lead to the increase of harmful pollutants in the air. The problem of environmental pollution is becoming more and more serious. New energy vehicles have become the research and development hotspot of automobile enterprises and scientific research institutions because of its low energy consumption and low pollution. Hybrid vehicles (HEVs) have the advantages of low emissions, low energy consumption and both conventional and new energy vehicles. However, the control system and function of HEV are more complicated than the traditional vehicle, so in the process of development of HEV, the cost of development and debugging diagnosis of HEV is much higher. The difficulty is higher than the traditional vehicle. This paper analyzes and compares the layout of several hybrid electric vehicles, and puts forward the basic structure of the parallel charging hybrid power system, and the engine, motor. The basic components, such as gearbox, battery, vehicle control unit and so on, are analyzed and introduced. At the same time, the development status of hybrid electric vehicle and vehicle diagnosis at home and abroad is studied, and various vehicle fault diagnosis methods are analyzed. Based on the detailed analysis of the parallel charging hybrid drive system. The basic frame of fault diagnosis instrument suitable for charging hybrid drive system is put forward. After analyzing the basic requirements of diagnostic instrument system, the software and hardware of the system are selected and PLC is selected. The EVIEW touch screen is used as the hardware base of the system, and the EV5000 of EVIEW is chosen as the communication program and system display between the system and the whole vehicle control unit of the hybrid drive system. Diagnostic interface programming software. According to the basic requirements of the system, the possible fault types of the parallel charging hybrid drive system are analyzed. In the control program of the whole vehicle control unit, a related subroutine is written to judge the possible faults, and a signal is generated after the judgment. This flag bit is the same as the address of the fault indicator lamp in the fault indication interface made in EVIEW, so that the fault signal is transmitted from the whole vehicle control unit to the touch screen. At the same time, the address of each parameter of the drive system in the PLC is the same as the address of each component in the display interface made in the touch screen. The real-time state and faults of the system parameters can be transmitted to the EVIEW touch screen, and the real-time monitoring and alarm of the system can be realized. The experiment shows that the diagnosis instrument can display the state of the parameters in the process of starting, accelerating, shifting and braking, and can prompt the alarm in the diagnosis interface in time when the system fails. The fault diagnosis of parallel charging hybrid drive system is basically realized, and the necessary experience is provided for further research and development.
【学位授予单位】：武汉理工大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH165.3

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