制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)系統是關系到(dao)人(ren)車(che)安全的(de)(de)(de)(de)關鍵(jian)部件，汽車(che)的(de)(de)(de)(de)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)系統按(an)照可(ke)靠、省力(li)等要(yao)求設置了(le)多種裝置。*常見的(de)(de)(de)(de)有(you)雙回(hui)路(lu)(lu)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)系統、真空制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)增(zeng)壓器等。輕(qing)型汽車(che)大都采(cai)用液(ye)壓制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)，既(ji)然(ran)是液(ye)壓就要(yao)使用管路(lu)(lu)。雙回(hui)路(lu)(lu)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)系統就是指系統內有(you)兩個(ge)(ge)(ge)分別獨立的(de)(de)(de)(de)液(ye)壓制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)管路(lu)(lu)系統，起保險的(de)(de)(de)(de)作用。一般前(qian)(qian)(qian)輪驅(qu)動(dong)(dong)(dong)(dong)轎車(che)多采(cai)用交叉對(dui)角(jiao)線形(xing)式，制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)主缸的(de)(de)(de)(de)前(qian)(qian)(qian)腔(qiang)與右前(qian)(qian)(qian)輪、左(zuo)后(hou)輪的(de)(de)(de)(de)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)管路(lu)(lu)相(xiang)通(tong)，后(hou)腔(qiang)與左(zuo)前(qian)(qian)(qian)輪、右后(hou)輪的(de)(de)(de)(de)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)管路(lu)(lu)相(xiang)通(tong)，形(xing)成一個(ge)(ge)(ge)交叉的(de)(de)(de)(de)“X”形(xing)對(dui)角(jiao)線，這樣的(de)(de)(de)(de)好處是當有(you)一個(ge)(ge)(ge)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)系統發生故障(zhang)時，另(ling)一個(ge)(ge)(ge)系統依然(ran)能(neng)進行*低(di)限度的(de)(de)(de)(de)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)，且不(bu)會(hui)發生跑(pao)偏(pian)現象(xiang)。而后(hou)輪驅(qu)動(dong)(dong)(dong)(dong)轎車(che)因負荷較大，多采(cai)用前(qian)(qian)(qian)后(hou)輪分別獨立制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)形(xing)式，即有(you)兩套(tao)(tao)制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)總泵，一套(tao)(tao)控(kong)(kong)制(zhi)(zhi)(zhi)前(qian)(qian)(qian)輪制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)，另(ling)一套(tao)(tao)控(kong)(kong)制(zhi)(zhi)(zhi)后(hou)輪制(zhi)(zhi)(zhi)動(dong)(dong)(dong)(dong)。以上是小車(che)通(tong)用行的(de)(de)(de)(de)剎(cha)車(che)。物(wu)理中運動(dong)(dong)(dong)(dong)學(xue)中說(shuo)：質量與滑行距離成正比。氣剎(cha)的(de)(de)(de)(de)力(li)度要(yao)大于油剎(cha)的(de)(de)(de)(de)5-6倍(bei)。

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