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并聯(lián)充電式混合動力驅(qū)動系統(tǒng)故障診斷分析儀開發(fā)

發(fā)布時(shí)間:2018-01-04 00:07

  本文關(guān)鍵詞:并聯(lián)充電式混合動力驅(qū)動系統(tǒng)故障診斷分析儀開發(fā) 出處:《武漢理工大學(xué)》2011年碩士論文 論文類型:學(xué)位論文


  更多相關(guān)文章: 混合動力 驅(qū)動系統(tǒng) 診斷分析儀 觸摸屏 故障診斷


【摘要】:隨著全球汽車保有量的增加,石油的供應(yīng)日趨緊張,石油資源的枯竭正在加劇,同時(shí)汽車排入大氣中的有害污染物導(dǎo)致空氣中有害污染物增加,環(huán)境污染問題日益嚴(yán)重,新能源汽車以其低能耗、低污染等特點(diǎn)成為當(dāng)前各汽車企業(yè)和科研機(jī)構(gòu)的研發(fā)熱點(diǎn)。 混合動力汽車以其低排放,低能耗,以及兼有傳統(tǒng)汽車和新能源汽車雙方的優(yōu)點(diǎn),引起各政府和各大汽車公司的關(guān)注。但是混合動力汽車控制系統(tǒng)和功能比傳統(tǒng)的汽車復(fù)雜很多,因此在混合動力汽車開發(fā)的過程中,其開發(fā)和調(diào)試診斷的成本、難度都高于傳統(tǒng)汽車。本文分析對比了幾種混合動力汽車的布置形式,在此基礎(chǔ)上提出了并聯(lián)充電式的混合動力系統(tǒng)的基本結(jié)構(gòu),并且對發(fā)動機(jī)、電機(jī)、變速箱、電池、整車控制單元等基本組成部件進(jìn)行分析介紹。同時(shí)本文還研究了國內(nèi)外混合動力汽車和汽車診斷的發(fā)展現(xiàn)狀,分析了各種汽車故障診斷方法,在對并聯(lián)充電式混合動力驅(qū)動系統(tǒng)進(jìn)行詳細(xì)分析的基礎(chǔ)上,提出了適合合于充電式混合動力驅(qū)動系統(tǒng)的故障診斷儀的基本構(gòu)架。在分析了診斷儀系統(tǒng)的基本需求后,對系統(tǒng)的軟件和硬件進(jìn)行了選型,選擇PLC、EVIEW觸摸屏作為系統(tǒng)的硬件基礎(chǔ),選擇EVIEW自帶的EV5000作為系統(tǒng)與混合動力驅(qū)動系統(tǒng)整車控制單元通訊程序和系統(tǒng)顯示、診斷界面的編程軟件。 根據(jù)系統(tǒng)的基本需求,分析了并聯(lián)充電式混合動力驅(qū)動系統(tǒng)可能出現(xiàn)的故障種類,并在整車控制單元的控制程序中編寫了相關(guān)的子程序?qū)赡艹霈F(xiàn)的故障進(jìn)行了判斷,判斷后生成一個(gè)標(biāo)志位信號,這個(gè)標(biāo)志位和EVIEW中制作的故障指示界面中故障指示燈地址相同,這樣故障信號就從整車控制單元傳到觸摸屏中,同時(shí)設(shè)置驅(qū)動系統(tǒng)各參數(shù)在PLC中的地址和觸摸屏中的制作的顯示界面中的各元件的地址相同。通過這個(gè)通訊程序,就可以將系統(tǒng)各參數(shù)的實(shí)時(shí)狀態(tài)和出現(xiàn)的故障傳到EVIEW觸摸屏中,實(shí)現(xiàn)了對系統(tǒng)的實(shí)時(shí)監(jiān)測和故障的報(bào)警。 實(shí)驗(yàn)表明,診斷儀能夠?qū)︱?qū)動系統(tǒng)在啟動、加速、換檔、制動過程中各參數(shù)的狀態(tài)進(jìn)行實(shí)時(shí)的顯示,并且在系統(tǒng)出現(xiàn)故障時(shí)能夠及時(shí)的在診斷界面提示報(bào)警,基本實(shí)現(xiàn)了對于并聯(lián)充電式混合動力驅(qū)動系統(tǒng)的故障診斷,并且為后續(xù)研究開發(fā)提供了必要的經(jīng)驗(yàn)。
[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.
【學(xué)位授予單位】:武漢理工大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2011
【分類號】:TH165.3

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