在(zai)方向盤下邊的方向桿(gan)上找到(dao)助力電(dian)機(ji),電(dian)機(ji)上一般有一個小鐵蓋護(hu)著的、帶四(si)根線(帶有一個插頭)的就(jiu)是轉向助力扭矩傳感器,拆下小鐵蓋就(jiu)能看到(dao)。
電(dian)(dian)(dian)動(dong)助(zhu)(zhu)力(li)轉向(xiang)(xiang)(xiang)系(xi)統主要由扭矩傳(chuan)(chuan)感(gan)(gan)器(qi),車速傳(chuan)(chuan)感(gan)(gan)器(qi),電(dian)(dian)(dian)動(dong)機,減速機構與電(dian)(dian)(dian)子控(kong)制(zhi)單(dan)元等組(zu)成。該系(xi)統通過扭矩傳(chuan)(chuan)感(gan)(gan)器(qi)感(gan)(gan)知駕駛員在轉向(xiang)(xiang)(xiang)操作(zuo)時方(fang)向(xiang)(xiang)(xiang)盤(pan)產生的(de)扭矩力(li)和轉向(xiang)(xiang)(xiang)角度(du),就會(hui)把操控(kong)信(xin)息轉換成數字信(xin)號輸(shu)入到(dao)控(kong)制(zhi)單(dan)元,再(zai)經過控(kong)制(zhi)單(dan)元對這些信(xin)號進行運算得到(dao)一個(ge)最(zui)佳的(de)力(li)矩最(zui)后控(kong)制(zhi)驅使電(dian)(dian)(dian)動(dong)機工作(zuo)。以上就是(shi)(shi)整(zheng)個(ge)電(dian)(dian)(dian)動(dong)助(zhu)(zhu)力(li)系(xi)統構成和工作(zuo)的(de)過程(cheng),不難看出扭矩傳(chuan)(chuan)感(gan)(gan)器(qi)在電(dian)(dian)(dian)動(dong)助(zhu)(zhu)力(li)系(xi)統中(zhong)是(shi)(shi)最(zui)為重要的(de)器(qi)件之一。
扭矩(ju)傳感(gan)器在電(dian)動(dong)(dong)助(zhu)(zhu)力(li)轉(zhuan)向(xiang)(xiang)(xiang)系(xi)(xi)統(tong)中(zhong)的(de)作用電(dian)動(dong)(dong)助(zhu)(zhu)力(li)轉(zhuan)向(xiang)(xiang)(xiang)系(xi)(xi)統(tong)可以稱(cheng)之(zhi)為(wei)EPS,它就是一種(zhong)直接(jie)依靠電(dian)機(ji)提(ti)供輔助(zhu)(zhu)扭矩(ju)的(de)動(dong)(dong)力(li)轉(zhuan)向(xiang)(xiang)(xiang)系(xi)(xi)統(tong)。在整個系(xi)(xi)統(tong)中(zhong),扭矩(ju)傳感(gan)器起到決(jue)定(ding)性(xing)作用。與傳統(tong)的(de)液壓(ya)助(zhu)(zhu)力(li)轉(zhuan)向(xiang)(xiang)(xiang)系(xi)(xi)統(tong)不(bu)同的(de)是電(dian)動(dong)(dong)助(zhu)(zhu)力(li)轉(zhuan)向(xiang)(xiang)(xiang)系(xi)(xi)統(tong)具(ju)有性(xing)能應用上更大(da)的(de)優(you)勢。它不(bu)光在需要轉(zhuan)向(xiang)(xiang)(xiang)時(shi)才啟動(dong)(dong)電(dian)機(ji)產生助(zhu)(zhu)力(li),這(zhe)樣能大(da)大(da)的(de)減少(shao)發動(dong)(dong)機(ji)燃油消耗。電(dian)動(dong)(dong)助(zhu)(zhu)力(li)能在各種(zhong)行駛工況下提(ti)供最佳助(zhu)(zhu)力(li),減小由路(lu)面不(bu)平所引起電(dian)動(dong)(dong)機(ji)的(de)輸出轉(zhuan)矩(ju)通(tong)(tong)過傳動(dong)(dong)裝置(zhi)的(de)作用而助(zhu)(zhu)力(li)向(xiang)(xiang)(xiang)系(xi)(xi)的(de)擾動(dong)(dong),改(gai)善汽車的(de)轉(zhuan)向(xiang)(xiang)(xiang)特性(xing),提(ti)高(gao)汽車的(de)主動(dong)(dong)安全性(xing)。和液壓(ya)助(zhu)(zhu)力(li)相比沒有液壓(ya)回路(lu),調整和檢(jian)測更容易,裝配(pei)自動(dong)(dong)化程度更高(gao),且可通(tong)(tong)過設置(zhi)不(bu)同的(de)程序,快速以及不(bu)同車型匹(pi)配(pei),縮短生產和開發周期。
扭矩(ju)傳感器的(de)作用(yong)是測量動(dong)態(tai)扭矩(ju)和靜態(tai)扭矩(ju),其檢(jian)測穩定性(xing)、抗干擾性(xing),以及精(jing)度都很好(hao),每次使用(yong)不需要調整為零。
1994年(nian)(nian)(nian),匆匆進入中(zhong)國的雷(lei)諾(nuo)與三(san)江航天集團(tuan)共同(tong)出資9800萬美元在(zai)湖北孝(xiao)感匆匆上馬了其在(zai)中(zhong)國內(nei)(nei)地的第(di)一(yi)個項(xiang)目(mu)——三(san)江雷(lei)諾(nuo)汽車(che)公司(si),三(san)江集團(tuan)持股55%,雷(lei)諾(nuo)持股45%,合作期限(xian)30年(nian)(nian)(nian)。按照(zhao)最初的設(she)計,當年(nian)(nian)(nian)以CKD方式投產(chan),到1997年(nian)(nian)(nian),產(chan)銷(xiao)量達到千輛(liang)(liang)(liang)。1998年(nian)(nian)(nian)底,涂裝、焊(han)裝、總(zong)(zong)裝三(san)條生(sheng)產(chan)線(xian)全面建成(cheng),具備年(nian)(nian)(nian)產(chan)15萬輛(liang)(liang)(liang)的能力,但命運總(zong)(zong)是捉弄(nong)人(ren),在(zai)1994年(nian)(nian)(nian)至2001年(nian)(nian)(nian)的8年(nian)(nian)(nian)時間內(nei)(nei),“塔菲(fei)克(ke)”客(ke)車(che)總(zong)(zong)共卻只銷(xiao)售了4000多輛(liang)(liang)(liang)。年(nian)(nian)(nian)均不到500輛(liang)(liang)(liang),這顯然不是雷(lei)諾(nuo)想(xiang)看到的結果。
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