本文選題：電控發(fā)動(dòng)機(jī) + 傳感器��； 參考：《吉林大學(xué)》2016年碩士論文

【摘要】：隨著汽車電子控制信息技術(shù)的飛速發(fā)展,現(xiàn)代電控發(fā)動(dòng)機(jī)內(nèi)部結(jié)構(gòu)越來(lái)越復(fù)雜,面臨電控發(fā)動(dòng)機(jī)故障的復(fù)雜性和信號(hào)的多變性,獲得準(zhǔn)確故障參數(shù)和信息更加困難,發(fā)生的故障更加繁雜,意味著對(duì)電控系統(tǒng)故障維修診斷難度增加,對(duì)發(fā)動(dòng)機(jī)診斷技術(shù)提出更高的要求,以往傳統(tǒng)單一的電控系統(tǒng)故障檢測(cè)診斷技術(shù)或維修方法無(wú)法滿足當(dāng)前電控發(fā)動(dòng)機(jī)故障維修診斷的需要,為提高電控發(fā)動(dòng)機(jī)的檢測(cè)、診斷速度和維修水平,以實(shí)現(xiàn)快速、準(zhǔn)確判斷發(fā)動(dòng)機(jī)故障原因,將波形分析和故障診斷技術(shù)相結(jié)合應(yīng)用到發(fā)動(dòng)機(jī)故障診斷過(guò)程中具有重大的意義。本文以K3電控發(fā)動(dòng)機(jī)(1.3L)為研究對(duì)象,對(duì)K3發(fā)動(dòng)機(jī)常見(jiàn)的故障類型和故障原因進(jìn)行闡述,對(duì)傳感器和執(zhí)行器的典型故障產(chǎn)生機(jī)理進(jìn)行分析,按照發(fā)動(dòng)機(jī)電控系統(tǒng)故障原因診斷程序和試驗(yàn)方法,采用DISⅡ示波器、X431電腦故障診斷儀和K3發(fā)動(dòng)機(jī)故障模擬試驗(yàn)臺(tái)組建試驗(yàn)平臺(tái),利用示波器存貯多次測(cè)試的傳感器和執(zhí)行器正常和異常波形進(jìn)行對(duì)比分析,重點(diǎn)針對(duì)傳感器和執(zhí)行器的幾個(gè)典型故障進(jìn)行波形診斷分析研究,對(duì)執(zhí)行器和傳感器輸出的正常和異常波形以及記錄的故障現(xiàn)象進(jìn)行分析,得出故障原因與波形異常變化之間的對(duì)應(yīng)關(guān)系和規(guī)律,進(jìn)而提出波形診斷分析技術(shù)在K3發(fā)動(dòng)機(jī)故障診斷上應(yīng)用的可行性。
[Abstract]:With the rapid development of automotive electronic control information technology, the internal structure of modern electronic control engine is becoming more and more complex, and it is more difficult to obtain accurate fault parameters and information because of the complexity of fault and the variability of signal. The faults occurred are more complicated, which means that it is more difficult for the maintenance and diagnosis of the electronic control system, and higher requirements for the engine diagnosis technology are put forward. In order to improve the detection, diagnosis speed and maintenance level of electronic control engine, the traditional single fault detection and diagnosis technology or maintenance method can not meet the need of fault maintenance diagnosis of electronic control engine. It is of great significance to accurately judge the cause of engine fault and apply waveform analysis and fault diagnosis technology to the process of engine fault diagnosis. In this paper, the common fault types and causes of K3 engine are described, and the typical fault generation mechanism of sensors and actuators is analyzed. According to the fault diagnosis program and test method of engine electronic control system, a test platform was constructed by using DIS 鈪，

本文編號(hào)：1908717