空調壓力(li)傳(chuan)感器壓力(li)傳(chuan)感器是(shi)一(yi)種能將檢測(ce)到的(de)壓力(li)信(xin)號轉換成(cheng)電(dian)子信(xin)號,由電(dian)腦(nao)板芯片進行微處理(li),根(gen)據(ju)壓力(li)檢測(ce)的(de)結果對空調機(ji)的(de)零部(bu)件(jian)進行精細的(de)控制。
1、工作原理
為兩種壓力傳感器的外觀,如今絕大多數壓力傳感器都是電容式壓力傳感器,它由兩個靠近的平行膜片和一個堅固的小巧殼體構成。空(kong)(kong)(kong)(kong)(kong)調(diao)(diao)壓(ya)(ya)力(li)傳(chuan)(chuan)感(gan)(gan)(gan)器(qi)是(shi)自動(dong)空(kong)(kong)(kong)(kong)(kong)調(diao)(diao)控(kong)制(zhi)系統(tong)的一個傳(chuan)(chuan)感(gan)(gan)(gan)器(qi)元件,其(qi)作(zuo)用是(shi)防(fang)止(zhi)制(zhi)冷(leng)系統(tong)在極限制(zhi)冷(leng)劑管(guan)(guan)路壓(ya)(ya)力(li)下工作(zuo),并幫助控(kong)制(zhi)發動(dong)機(ji)(ji)冷(leng)卻(que)風扇(shan)的轉(zhuan)速。 壓(ya)(ya)力(li)傳(chuan)(chuan)感(gan)(gan)(gan)器(qi)安(an)裝在發動(dong)機(ji)(ji)艙內(nei)空(kong)(kong)(kong)(kong)(kong)調(diao)(diao)高(gao)壓(ya)(ya)管(guan)(guan)路上。該傳(chuan)(chuan)感(gan)(gan)(gan)器(qi)向發動(dong)機(ji)(ji)ECM或空(kong)(kong)(kong)(kong)(kong)調(diao)(diao)控(kong)制(zhi)單元輸出壓(ya)(ya)力(li)信(xin)號(hao),當檢(jian)測到(dao)空(kong)(kong)(kong)(kong)(kong)調(diao)(diao)制(zhi)冷(leng)管(guan)(guan)路壓(ya)(ya)力(li)過低或過高(gao)時(shi),控(kong)制(zhi)系統(tong)停(ting)止(zhi)對空(kong)(kong)(kong)(kong)(kong)調(diao)(diao)壓(ya)(ya)縮(suo)(suo)機(ji)(ji)離合器(qi)供電(dian),壓(ya)(ya)縮(suo)(suo)機(ji)(ji)停(ting)止(zhi)運轉(zhuan),以免(mian)對空(kong)(kong)(kong)(kong)(kong)調(diao)(diao)系統(tong)造成損壞。當制(zhi)冷(leng)劑壓(ya)(ya)力(li)達(da)到(dao)一中(zhong)等(deng)壓(ya)(ya)力(li)值時(shi),散熱器(qi)風扇(shan)高(gao)速運轉(zhuan),降(jiang)低空(kong)(kong)(kong)(kong)(kong)調(diao)(diao)制(zhi)冷(leng)劑壓(ya)(ya)力(li)。
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