汽車空調壓縮機配件數據采(cai)集(ji)卡的主要(yao)技術指標包(bao)括：采(cai)樣(yang)率(lv)、分辨率(lv)、量(liang)程范圍、代碼寬(kuan)度、精度。本系(xi)統(tong)需要(yao)采(cai)集(ji)并傳(chuan)人到(dao)計(ji)算機內(nei)部的信號(hao)共(gong)4路信號(hao)，可選擇usb2．o多功能采(cai)集(ji)卡。系(xi)統(tong)軟件(jian)設計(ji).整個測(ce)試系(xi)統(tong)的結構如(ru)圖2所示(shi)。空壓機配件(jian)隔離耐壓 AC2．5 kV／min(50 Hz)絕緣(yuan)電(dian)阻 ≥100 MQ(DC500 V)沖擊電(dian)膨kV 5(峰值)根(gen)據以(yi)(yi)上技術指標分析，符合測(ce)量(liang)量(liang)程以(yi)(yi)及精度的要(yao)求，能夠工(gong)作在穩定的條件(jian)下。

    由于(yu)本系(xi)統(tong)(tong)(tong)不需(xu)(xu)要任(ren)何對(dui)(dui)空壓機(ji)的(de)(de)性能進(jin)行(xing)(xing)調(diao)(diao)整(zheng)(zheng)，所以系(xi)統(tong)(tong)(tong)中(zhong)沒(mei)有反(fan)饋(kui)電路或者是自動調(diao)(diao)整(zheng)(zheng)系(xi)統(tong)(tong)(tong)。經(jing)(jing)過(guo)對(dui)(dui)整(zheng)(zheng)個測(ce)試系(xi)統(tong)(tong)(tong)的(de)(de)測(ce)試，能夠(gou)準確測(ce)出題目要求(qiu)的(de)(de)各(ge)項指(zhi)標，并且能在(zai)計(ji)算機(ji)中(zhong)進(jin)行(xing)(xing)顯示，經(jing)(jing)過(guo)長時間的(de)(de)測(ce)試，系(xi)統(tong)(tong)(tong)能夠(gou)在(zai)穩定的(de)(de)條件下(xia)運行(xing)(xing)，傳感器(qi)、變送器(qi)等也能夠(gou)長時間地穩定運行(xing)(xing)，符合測(ce)試系(xi)統(tong)(tong)(tong)的(de)(de)要求(qiu)。本設計(ji)從硬(ying)件和軟(ruan)件兩方(fang)面(mian)比較(jiao)詳細地闡述(shu)了基于(yu)LabVIEw的(de)(de)空壓機(ji)檢(jian)測(ce)裝置設計(ji)過(guo)程。總體來講(jiang)，系(xi)統(tong)(tong)(tong)功(gong)能已經(jing)(jing)比較(jiao)完(wan)善，該檢(jian)測(ce)系(xi)統(tong)(tong)(tong)基本能夠(gou)實(shi)現現場測(ce)試需(xu)(xu)求(qiu)。

    故障(zhang)檢(jian)測：首(shou)先(xian)進行常(chang)規檢(jian)查——3000RPM壓(ya)(ya)縮機接合時(shi)高(gao)壓(ya)(ya)20BAR、低(di)壓(ya)(ya)1.6BAR正(zheng)常(chang)，高(gao)低(di)壓(ya)(ya)管路(lu)無(wu)結霜現象，發動(dong)機水溫不(bu)高(gao)，風扇(shan)運轉正(zheng)常(chang)，水箱和冷(leng)凝器也無(wu)臟污(wu)堵塞(sai)。因擔心制冷(leng)劑偏多，就回收并按標準(zhun)重新加(jia)注(zhu)了(le)480克(ke)，但故障(zhang)依舊。隨(sui)后開始檢(jian)查相關(guan)的控(kong)制電(dian)路(lu)，該車空調控(kong)制系統有(you)自診(zhen)斷功能(neng)，其讀取方(fang)法如(ru)下： 

A．關(guan)閉點火開關(guan)和風(feng)扇開關(guan)，將溫度控制旋鈕(niu)置于(yu)zui冷位(wei)且模式(shi)控制旋鈕(niu)置于(yu)通(tong)風(feng)位(wei)置。 

B．接(jie)通(tong)點(dian)火開關ON(II)，然(ran)(ran)后按下(xia)并保持空氣循環控(kong)制開關。10秒鐘內按壓后車(che)窗除霧(wu)器開關5次。空氣循環指示燈將(jiang)閃爍兩(liang)次，然(ran)(ran)后開始自診斷。 

C．如(ru)果系(xi)統存(cun)在故(gu)(gu)(gu)障(zhang)(zhang)，將由(you)“空(kong)氣(qi)(qi)循環(huan)指示燈(deng)(deng)”來(lai)閃爍診斷(duan)故(gu)(gu)(gu)障(zhang)(zhang)代(dai)碼(ma)(ma)(DTC7-13)；而(er)蒸發器(qi)溫度(du)傳感(gan)器(qi)電路有故(gu)(gu)(gu)障(zhang)(zhang)時，則由(you)“空(kong)調指示燈(deng)(deng)”來(lai)閃爍故(gu)(gu)(gu)障(zhang)(zhang)代(dai)碼(ma)(ma)（DTC14和15)。若未發現(xian)故(gu)(gu)(gu)障(zhang)(zhang)代(dai)碼(ma)(ma)，則指示燈(deng)(deng)不閃爍。如(ru)果系(xi)統出現(xian)多種故(gu)(gu)(gu)障(zhang)(zhang)時，空(kong)氣(qi)(qi)循環(huan)指示燈(deng)(deng)將只(zhi)顯示閃爍次數zui少(shao)的DTC。 

D．關閉點火開關會取消(xiao)自診斷功(gong)能(neng)。

    汽車空調壓縮(suo)機(ji)配(pei)件可(ke)分為往(wang)復式(shi)(shi)(shi)和(he)旋(xuan)轉式(shi)(shi)(shi)二大類。往(wang)復式(shi)(shi)(shi)的又分曲軸(zhou)連桿(gan)式(shi)(shi)(shi)，軸(zhou)向活(huo)塞式(shi)(shi)(shi)，和(he)徑(jing)向活(huo)塞式(shi)(shi)(shi)。其(qi)中軸(zhou)向活(huo)塞式(shi)(shi)(shi)又分旋(xuan)轉斜(xie)盤(pan)式(shi)(shi)(shi)和(he)搖(yao)(yao)擺斜(xie)盤(pan)式(shi)(shi)(shi)。旋(xuan)轉式(shi)(shi)(shi)又分刮(gua)片式(shi)(shi)(shi)，滾動活(huo)塞式(shi)(shi)(shi)，三角轉子式(shi)(shi)(shi)，渦旋(xuan)式(shi)(shi)(shi)，螺桿(gan)式(shi)(shi)(shi)。本文主要研(yan)究5 缸搖(yao)(yao)擺斜(xie)盤(pan)式(shi)(shi)(shi)的汽車空調壓縮(suo)機(ji)。  

    搖擺斜盤式的(de)(de)(de)(de)汽車空(kong)調(diao)壓縮機(ji)的(de)(de)(de)(de)工(gong)作原理是通過(guo)主軸的(de)(de)(de)(de)旋轉(zhuan)(zhuan)帶動(dong)(dong)斜盤的(de)(de)(de)(de)轉(zhuan)(zhuan)動(dong)(dong)，通過(guo)只(zhi)能進行(xing)(xing)擺動(dong)(dong)的(de)(de)(de)(de)行(xing)(xing)星盤將旋zhuan運(yun)動(dong)(dong)轉(zhuan)(zhuan)化(hua)為活(huo)塞的(de)(de)(de)(de)往復運(yun)動(dong)(dong)，活(huo)塞在氣缸里對制冷(leng)劑(ji)進行(xing)(xing)壓縮。