進(jin)氣溫度傳(chuan)感(gan)(gan)器是一個負溫度系數熱敏電(dian)(dian)阻(zu)(zu),當溫度升高時(shi)(shi),電(dian)(dian)阻(zu)(zu)阻(zu)(zu)值(zhi)減小(xiao),當溫度降低(di)時(shi)(shi),電(dian)(dian)阻(zu)(zu)阻(zu)(zu)值(zhi)增大,隨著電(dian)(dian)路中電(dian)(dian)阻(zu)(zu)的(de)(de)(de)變化,導致(zhi)電(dian)(dian)壓的(de)(de)(de)變化,從而產生(sheng)不同(tong)的(de)(de)(de)電(dian)(dian)壓信(xin)(xin)號,完(wan)成控(kong)制系統的(de)(de)(de)自動(dong)操作。在冷車時(shi)(shi),進(jin)氣溫度傳(chuan)感(gan)(gan)器的(de)(de)(de)信(xin)(xin)號與發動(dong)機水溫傳(chuan)感(gan)(gan)器信(xin)(xin)號基本相同(tong),在熱車時(shi)(shi),其信(xin)(xin)號電(dian)(dian)壓大約是水溫傳(chuan)感(gan)(gan)器的(de)(de)(de)2~3倍(bei)。
進(jin)氣(qi)(qi)溫(wen)度傳感(gan)器的(de)作用(yong)是檢測(ce)發動(dong)機(ji)的(de)進(jin)氣(qi)(qi)溫(wen)度,送(song)給(gei)ECU作為修(xiu)正噴(pen)油量(liang)的(de)參考(kao)。該傳感(gan)器在(zai)電控燃油噴(pen)射系統(tong)中測(ce)量(liang)進(jin)氣(qi)(qi)溫(wen)度,并(bing)輸入到(dao)ECU,用(yong)以修(xiu)正體積(ji)型(xing)空氣(qi)(qi)流量(liang)傳感(gan)器由(you)于大氣(qi)(qi)溫(wen)度變化帶來的(de)進(jin)氣(qi)(qi)質量(liang)檢測(ce)的(de)誤差。
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