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紹興四輪一帶-中特重工(在線咨詢)-攤鋪機四輪一帶：

汽(qi)車(che)(che)的(de)(de)驅(qu)(qu)動(dong)形式(shi)一般有以下幾種(zhong)：前置(zhi)(zhi)后(hou)(hou)(hou)驅(qu)(qu)(FR)、前置(zhi)(zhi)前驅(qu)(qu)(FF)、后(hou)(hou)(hou)置(zhi)(zhi)后(hou)(hou)(hou)驅(qu)(qu)(RR)、中置(zhi)(zhi)后(hou)(hou)(hou)驅(qu)(qu)(MR)、四(si)輪(lun)驅(qu)(qu)動(dong)。所謂(wei)驅(qu)(qu)動(dong)形式(shi)，是(shi)指發(fa)動(dong)機的(de)(de)布置(zhi)(zhi)方式(shi)及驅(qu)(qu)動(dong)輪(lun)的(de)(de)數量、位置(zhi)(zhi)的(de)(de)形式(shi)。國內外(wai)大多數貨(huo)車(che)(che)(含皮卡)、部分(fen)轎車(che)(che)(尤其是(shi)轎車(che)(che))和部分(fen)客(ke)車(che)(che)都采用前置(zhi)(zhi)后(hou)(hou)(hou)驅(qu)(qu)的(de)(de)驅(qu)(qu)動(dong)型式(shi)，但采用該(gai)型式(shi)的(de)(de)小型車(che)(che)很少。所謂(wei)全輪(lun)驅(qu)(qu)動(dong)，又稱四(si)輪(lun)驅(qu)(qu)動(dong)，是(shi)指汽(qi)車(che)(che)前后(hou)(hou)(hou)輪(lun)都有動(dong)力(li)。一般用4X4或4WD來表(biao)示(shi)，如(ru)果(guo)你(ni)看見一輛車(che)(che)上標(biao)有上述(shu)字樣，那就表(biao)示(shi)該(gai)車(che)(che)輛擁有4輪(lun)驅(qu)(qu)動(dong)的(de)(de)功能。

概述目前，2轎車的(de)(de)(de)(de)4輪驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)裝置已經引進了電子(zi)計算機控(kong)制系統，當前輪或后(hou)輪驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)時(shi)(shi)，車子(zi)隨時(shi)(shi)根據(ju)路面(mian)狀態的(de)(de)(de)(de)反(fan)饋信(xin)息分(fen)配(pei)前后(hou)輪子(zi)的(de)(de)(de)(de)動(dong)(dong)(dong)(dong)(dong)力，變(bian)為(wei)4輪驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)。4輪驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)又可(ke)(ke)以細分(fen)成4種驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)模(mo)式：全(quan)(quan)時(shi)(shi)驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)（Full－Time）、分(fen)時(shi)(shi)驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)（Part-Time）、適(shi)時(shi)(shi)驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)（Real－Time）和(he)分(fen)時(shi)(shi)/適(shi)時(shi)(shi)混(hun)和(he)驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)。全(quan)(quan)時(shi)(shi)驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)全(quan)(quan)時(shi)(shi)驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)（Full－Time） 全(quan)(quan)時(shi)(shi)驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)特點就(jiu)是(shi)(shi)無論怎么樣，永遠都保(bao)持四輪驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)模(mo)式，這(zhe)種傳動(dong)(dong)(dong)(dong)(dong)系統都是(shi)(shi)不需要駕(jia)駛(shi)人選擇操(cao)作的(de)(de)(de)(de)。行駛(shi)的(de)(de)(de)(de)時(shi)(shi)將(jiang)發動(dong)(dong)(dong)(dong)(dong)機輸出扭(niu)矩按50∶50 設定在前后(hou)輪上(shang)，使(shi)前后(hou)排車輪保(bao)持等量的(de)(de)(de)(de)扭(niu)矩，遇到特別路面(mian)的(de)(de)(de)(de)時(shi)(shi)候就(jiu)可(ke)(ke)以自動(dong)(dong)(dong)(dong)(dong)將(jiang)不同的(de)(de)(de)(de)扭(niu)距分(fen)配(pei)到各個輪子(zi)上(shang)面(mian)。全(quan)(quan)時(shi)(shi)驅(qu)(qu)(qu)(qu)(qu)動(dong)(dong)(dong)(dong)(dong)系統具有良(liang)好的(de)(de)(de)(de)駕(jia)駛(shi)操(cao)控(kong)性(xing)(xing)和(he)行駛(shi)循(xun)跡(ji)性(xing)(xing)，不過缺(que)點也是(shi)(shi)很(hen)明顯(xian)的(de)(de)(de)(de)，那(nei)就(jiu)是(shi)(shi)比較廢油，經濟性(xing)(xing)不夠(gou)好，而(er)且車輛沒有任何裝置來控(kong)制輪胎轉速的(de)(de)(de)(de)差異，一旦一個輪胎離(li)開地面(mian)就(jiu)有可(ke)(ke)能(neng)讓你(ni)無法前進。

四輪一代市場如(ru)何進行(xing)供(gong)給(gei)側改革

目前的現狀是大家都在壓價格，拼營銷，山推、三一鏈條搞活動價格一低在低，四輪有的企業平進平出，一個輪子利潤幾塊錢都在做，造假不斷，搞笑的是，假l貨在市場上名氣很大了，反而原廠真的被視為假l貨；大部分企業也認識到單純比拼營銷已無法適應新的市場形勢，“練內功”成為企業關注的重點。四輪一帶

目(mu)前(qian)市(shi)場是，履帶(dai)要求質(zhi)量高，利潤相對高一(yi)(yi)些，很多代理商選擇大廠的鏈(lian)軌去(qu)銷售，利潤也(ye)算可(ke)以，四輪像山推、三一(yi)(yi)、徐工(gong)、龍工(gong)的都價格(ge)(ge)超(chao)高，后市(shi)場基本不選擇，而(er)一(yi)(yi)些小廠質(zhi)量可(ke)靠價格(ge)(ge)略(lve)低的反而(er)市(shi)場不錯，目(mu)前(qian)行情(qing)保持一(yi)(yi)周七(qi)天(tian)不休(xiu)。四輪一(yi)(yi)帶(dai)

大家都在拼價格導致整個四輪一帶后市場行業都不愿投入無法進行，加上勞動力成本逐年增加，企業較小私l募股權和創業投資很難進行，只有靠自己關系去主機廠搞新技術和國家稅收制度改革了。四輪一帶