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昭通四輪一帶-中特重工(在線咨詢)-攤鋪機四輪一帶：

全輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)(dong)(dong)(dong)也(ye)分兩種(zhong)形(xing)式：一(yi)(yi)種(zhong)是(shi)(shi)全時(shi)(shi)全輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)(dong)(dong)(dong)，即(ji)全部時(shi)(shi)間都是(shi)(shi)全輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)(dong)(dong)(dong)；另一(yi)(yi)種(zhong)是(shi)(shi)短(duan)時(shi)(shi)全輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)(dong)(dong)(dong)，它可(ke)以切斷某個橋(qiao)的動(dong)(dong)(dong)(dong)(dong)(dong)力(li)，以減(jian)少燃料消耗(hao)和磨損，只在(zai)(zai)需要(yao)時(shi)(shi)再(zai)使(shi)用全輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)(dong)(dong)(dong)。過去只有(you)越(yue)野車(che)(che)采(cai)用4輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)(dong)(dong)(dong)，一(yi)(yi)般的越(yue)野車(che)(che)，變(bian)速(su)器后(hou)(hou)(hou)面裝有(you)手動(dong)(dong)(dong)(dong)(dong)(dong)分離器，前(qian)(qian)(qian)后(hou)(hou)(hou)車(che)(che)軸各裝一(yi)(yi)個稱為驅(qu)動(dong)(dong)(dong)(dong)(dong)(dong)橋(qiao)的部件。變(bian)速(su)器輸出的扭矩通過分力(li)器和傳(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)軸，分別傳(chuan)遞到前(qian)(qian)(qian)后(hou)(hou)(hou)車(che)(che)軸上(shang)的驅(qu)動(dong)(dong)(dong)(dong)(dong)(dong)橋(qiao)，再(zai)通過驅(qu)動(dong)(dong)(dong)(dong)(dong)(dong)橋(qiao)將扭矩傳(chuan)遞到輪(lun)(lun)(lun)子上(shang)。現(xian)在(zai)(zai)轎車(che)(che)的馬力(li)都比較大，加速(su)時(shi)(shi)后(hou)(hou)(hou)移，全車(che)(che)重量就會向后(hou)(hou)(hou)軸移動(dong)(dong)(dong)(dong)(dong)(dong)，造成(cheng)前(qian)(qian)(qian)軸輕(qing)飄。前(qian)(qian)(qian)輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)(dong)(dong)(dong)的轎車(che)(che)即(ji)使(shi)在(zai)(zai)良好的路面上(shang)也(ye)會打滑(hua)，4輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)(dong)(dong)(dong)就可(ke)以防止這種(zhong)現(xian)象發生。轎車(che)(che)上(shang)的4輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)(dong)(dong)(dong)裝置是(shi)(shi)常嚙合(he)式，增加了(le)粘性耦(ou)合(he)器，省去了(le)手動(dong)(dong)(dong)(dong)(dong)(dong)分力(li)器，自動(dong)(dong)(dong)(dong)(dong)(dong)將扭矩按需分配在(zai)(zai)前(qian)(qian)(qian)后(hou)(hou)(hou)輪(lun)(lun)(lun)子上(shang)。在(zai)(zai)正常路面上(shang)，4輪(lun)(lun)(lun)驅(qu)動(dong)(dong)(dong)(dong)(dong)(dong)裝置將引擎輸出扭矩的92%分配到前(qian)(qian)(qian)輪(lun)(lun)(lun)，8%分配到后(hou)(hou)(hou)輪(lun)(lun)(lun)；在(zai)(zai)滑(hua)溜(liu)的路面上(shang)，將至少40%的引擎機(ji)輸出扭矩分配給后(hou)(hou)(hou)輪(lun)(lun)(lun)；當前(qian)(qian)(qian)輪(lun)(lun)(lun)開始打滑(hua)時(shi)(shi)，前(qian)(qian)(qian)、后(hou)(hou)(hou)輪(lun)(lun)(lun)的轉(zhuan)(zhuan)速(su)差異會使(shi)耦(ou)合(he)器中的粘液(ye)立即(ji)變(bian)稠(chou)并鎖住耦(ou)合(he)器，從(cong)而使(shi)傳(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)軸只將扭矩傳(chuan)遞至后(hou)(hou)(hou)輪(lun)(lun)(lun)，待前(qian)(qian)(qian)、后(hou)(hou)(hou)輪(lun)(lun)(lun)的轉(zhuan)(zhuan)速(su)差異消失就自動(dong)(dong)(dong)(dong)(dong)(dong)回復原有(you)驅(qu)動(dong)(dong)(dong)(dong)(dong)(dong)形(xing)式。

分(fen)時(shi)驅(qu)(qu)動(dong)(dong)分(fen)時(shi)驅(qu)(qu)動(dong)(dong)就是(shi)由駕(jia)駛員(yuan)根據路(lu)(lu)(lu)面情(qing)況(kuang)(kuang)，選擇(ze)四(si)驅(qu)(qu)或(huo)者(zhe)兩驅(qu)(qu)，這也是(shi)一般(ban)越(yue)野車(che)(che)或(huo)四(si)驅(qu)(qu)SUV 常(chang)見的(de)(de)驅(qu)(qu)動(dong)(dong)模式(shi)。分(fen)時(shi)驅(qu)(qu)動(dong)(dong)較(jiao)大(da)的(de)(de)特點就是(shi)人工操(cao)作(zuo)，由駕(jia)駛員(yuan)根據路(lu)(lu)(lu)面情(qing)況(kuang)(kuang)通過接(jie)通或(huo)斷(duan)開分(fen)動(dong)(dong)器來(lai)變化兩輪(lun)(lun)(lun)(lun)驅(qu)(qu)動(dong)(dong)或(huo)四(si)輪(lun)(lun)(lun)(lun)驅(qu)(qu)動(dong)(dong)模式(shi)，較(jiao)大(da)的(de)(de)優點就是(shi)可(ke)以根據實際情(qing)況(kuang)(kuang)來(lai)選取驅(qu)(qu)動(dong)(dong)模式(shi)，比(bi)較(jiao)經濟。就拿普通的(de)(de)越(yue)野車(che)(che)而言，一般(ban)都有(you)三種驅(qu)(qu)動(dong)(dong)模式(shi)可(ke)以選擇(ze)：在(zai)(zai)公(gong)路(lu)(lu)(lu)上行(xing)駛使用(yong)2H 高速(su)兩輪(lun)(lun)(lun)(lun)驅(qu)(qu)動(dong)(dong)檔，當(dang)遇到雨雪路(lu)(lu)(lu)況(kuang)(kuang)時(shi)選擇(ze)4H 高速(su)驅(qu)(qu)動(dong)(dong)增強(qiang)車(che)(che)輛(liang)(liang)的(de)(de)附(fu)著(zhu)(zhu)力和操(cao)控性，而面對惡劣路(lu)(lu)(lu)況(kuang)(kuang)的(de)(de)挑戰時(shi)又可(ke)采用(yong)4L 低速(su)四(si)輪(lun)(lun)(lun)(lun)驅(qu)(qu)動(dong)(dong)，使動(dong)(dong)力作(zuo)用(yong)在(zai)(zai)全部四(si)個車(che)(che)輪(lun)(lun)(lun)(lun)上，從而降低了(le)對每個輪(lun)(lun)(lun)(lun)胎附(fu)著(zhu)(zhu)力的(de)(de)要求，減小了(le)轉彎時(shi)車(che)(che)輪(lun)(lun)(lun)(lun)空轉的(de)(de)幾率，發動(dong)(dong)機(ji)制(zhi)動(dong)(dong)能(neng)力也得以增強(qiang)，極大(da)地提高了(le)車(che)(che)輛(liang)(liang)在(zai)(zai)崎嶇(qu)或(huo)光(guang)滑路(lu)(lu)(lu)面行(xing)駛時(shi)在(zai)(zai)油門突然關(guan)閉的(de)(de)情(qing)況(kuang)(kuang)下的(de)(de)可(ke)控性。優點是(shi)可(ke)根據實際情(qing)況(kuang)(kuang)來(lai)選取驅(qu)(qu)動(dong)(dong)模式(shi)，比(bi)較(jiao)經濟；缺點是(shi)其機(ji)械結構比(bi)較(jiao)復雜，駕(jia)駛員(yuan)要具有(you)一定的(de)(de)經驗(yan)才能(neng)掌握好切換(huan)時(shi)機(ji)。

四(si)輪(lun)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)（4 Wheel Drive)主變(bian)(bian)速(su)器通過一個輔(fu)助變(bian)(bian)速(su)器將動(dong)(dong)(dong)力傳送到前(qian)輪(lun)和后輪(lun). 輔(fu)助變(bian)(bian)速(su)器通常有三檔(dang)(dang)選(xuan)擇(ze)(ze)； 空檔(dang)(dang)，四(si)輪(lun)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)，四(si)輪(lun)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)低(di)檔(dang)(dang)。空檔(dang)(dang)時，四(si)輪(lun)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)就(jiu)變(bian)(bian)成了(le)(le)兩(liang)輪(lun)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)。四(si)輪(lun)驅(qu)(qu)(qu)(qu) 動(dong)(dong)(dong)適合(he)于惡(e)劣的路(lu)面駕(jia)(jia)(jia)(jia)駛，例如，雨雪天和多沙石路(lu)面。四(si)輪(lun)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)低(di)檔(dang)(dang)則適合(he)高難(nan)度的越野(ye)駕(jia)(jia)(jia)(jia)駛。全輪(lun)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong) (All Wheel Drive)全輪(lun)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)是四(si)輪(lun)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)的一種(zhong). 它自動(dong)(dong)(dong)將發動(dong)(dong)(dong) 機提(ti)供的 扭矩分送到前(qian)輪(lun)和后輪(lun)，不需要手動(dong)(dong)(dong)去調整(zheng)，也沒有低(di)檔(dang)(dang)選(xuan)擇(ze)(ze)。全輪(lun)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong) 減(jian)低(di)了(le)(le)車輪(lun)打滑的程度，改善了(le)(le)駕(jia)(jia)(jia)(jia)駛者的控(kong)車能力。全輪(lun)驅(qu)(qu)(qu)(qu)動(dong)(dong)(dong)通常是一種(zhong) 正常路(lu)面駕(jia)(jia)(jia)(jia)駛系統，并不設計用于越野(ye)駕(jia)(jia)(jia)(jia)駛。