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中特工程廠家(圖)-徐工四輪一帶-上海四輪一帶：

概述目前，2轎車(che)的(de)(de)4輪(lun)驅(qu)(qu)(qu)動(dong)(dong)裝置已經(jing)引進(jin)了電子(zi)計算機控(kong)(kong)制系(xi)統，當前輪(lun)或后(hou)輪(lun)驅(qu)(qu)(qu)動(dong)(dong)時(shi)，車(che)子(zi)隨時(shi)根據路面狀態的(de)(de)反(fan)饋信(xin)息分(fen)(fen)配前后(hou)輪(lun)子(zi)的(de)(de)動(dong)(dong)力，變為4輪(lun)驅(qu)(qu)(qu)動(dong)(dong)。4輪(lun)驅(qu)(qu)(qu)動(dong)(dong)又可(ke)以(yi)細分(fen)(fen)成4種驅(qu)(qu)(qu)動(dong)(dong)模(mo)式：全時(shi)驅(qu)(qu)(qu)動(dong)(dong)（Full－Time）、分(fen)(fen)時(shi)驅(qu)(qu)(qu)動(dong)(dong)（Part-Time）、適(shi)時(shi)驅(qu)(qu)(qu)動(dong)(dong)（Real－Time）和(he)分(fen)(fen)時(shi)/適(shi)時(shi)混(hun)和(he)驅(qu)(qu)(qu)動(dong)(dong)。全時(shi)驅(qu)(qu)(qu)動(dong)(dong)全時(shi)驅(qu)(qu)(qu)動(dong)(dong)（Full－Time） 全時(shi)驅(qu)(qu)(qu)動(dong)(dong)的(de)(de)特點(dian)就是(shi)無論怎(zen)么樣，永遠都(dou)保(bao)持(chi)四輪(lun)驅(qu)(qu)(qu)動(dong)(dong)模(mo)式，這種傳動(dong)(dong)系(xi)統都(dou)是(shi)不(bu)需要駕駛(shi)人選擇操作的(de)(de)。行(xing)駛(shi)的(de)(de)時(shi)將(jiang)發動(dong)(dong)機輸出(chu)扭矩按50∶50 設定在前后(hou)輪(lun)上，使前后(hou)排(pai)車(che)輪(lun)保(bao)持(chi)等量的(de)(de)扭矩，遇到特別路面的(de)(de)時(shi)候就可(ke)以(yi)自動(dong)(dong)將(jiang)不(bu)同的(de)(de)扭距分(fen)(fen)配到各個輪(lun)子(zi)上面。全時(shi)驅(qu)(qu)(qu)動(dong)(dong)系(xi)統具有良(liang)好的(de)(de)駕駛(shi)操控(kong)(kong)性和(he)行(xing)駛(shi)循跡性，不(bu)過缺點(dian)也(ye)是(shi)很明顯(xian)的(de)(de)，那(nei)就是(shi)比較廢油，經(jing)濟性不(bu)夠好，而且車(che)輛沒有任何(he)裝置來控(kong)(kong)制輪(lun)胎轉(zhuan)速的(de)(de)差(cha)異，一旦一個輪(lun)胎離開地面就有可(ke)能讓你無法前進(jin)。

分(fen)(fen)動器(qi)的(de)功(gong)能(neng)是(shi)(shi)執行(xing)前(qian)后輪扭矩分(fen)(fen)配功(gong)能(neng)，在分(fen)(fen)動器(qi)中間布置一個濕式多片離合器(qi)，該離合器(qi)右端通過傳(chuan)動軸驅動后輪，左(zuo)端通過鏈(lian)傳(chuan)動驅動前(qian)輪。電(dian)(dian)(dian)(dian)控(kong)(kong)單元（ECU)ECU是(shi)(shi)AWD系(xi)統的(de)核心(xin)，其功(gong)用是(shi)(shi)根據制(zhi)(zhi)定的(de)控(kong)(kong)制(zhi)(zhi)方(fang)案(an)，按照編制(zhi)(zhi)的(de)程序對各(ge)種(zhong)傳(chuan)感(gan)器(qi)輸(shu)入信號進行(xing)分(fen)(fen)析、計算、處(chu)理(li)，輸(shu)出一定的(de)控(kong)(kong)制(zhi)(zhi)信號指令(ling)，驅動電(dian)(dian)(dian)(dian)磁閥動作。AWD系(xi)統ECU主要由輸(shu)入信號調理(li)電(dian)(dian)(dian)(dian)路(lu)(lu)、微(wei)處(chu)理(li)器(qi)、輸(shu)出信號處(chu)理(li)電(dian)(dian)(dian)(dian)路(lu)(lu)、電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)路(lu)(lu)等硬件部分(fen)(fen)以及(ji)控(kong)(kong)制(zhi)(zhi)系(xi)統和控(kong)(kong)制(zhi)(zhi)程序、軟件平臺等軟件部分(fen)(fen)組成。為保證控(kong)(kong)制(zhi)(zhi)系(xi)統可靠地工作，電(dian)(dian)(dian)(dian)控(kong)(kong)單元還必須采取(qu)有效的(de)抗(kang)干擾措施和故障自診斷處(chu)理(li)措施。

    中特重工~四輪一帶誠信商家

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