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扭矩傳感器簡介

在(zai)方向盤下邊的(de)方向桿上(shang)找到助力電(dian)機(ji)，電(dian)機(ji)上(shang)一(yi)般有(you)一(yi)個小鐵蓋(gai)護著的(de)、帶(dai)四根線（帶(dai)有(you)一(yi)個插(cha)頭）的(de)就(jiu)是(shi)轉向助力扭(niu)矩傳(chuan)感器，拆下小鐵蓋(gai)就(jiu)能(neng)看到。

電(dian)(dian)動(dong)(dong)助(zhu)力轉(zhuan)(zhuan)(zhuan)向系(xi)(xi)統(tong)(tong)主要(yao)由扭矩(ju)傳(chuan)感(gan)器(qi)，車速(su)傳(chuan)感(gan)器(qi)，電(dian)(dian)動(dong)(dong)機(ji)，減(jian)速(su)機(ji)構與電(dian)(dian)子控(kong)制(zhi)(zhi)單元等組成。該(gai)系(xi)(xi)統(tong)(tong)通過扭矩(ju)傳(chuan)感(gan)器(qi)感(gan)知駕駛(shi)員(yuan)在轉(zhuan)(zhuan)(zhuan)向操作時方向盤產(chan)生的(de)扭矩(ju)力和(he)轉(zhuan)(zhuan)(zhuan)向角度，就會把操控(kong)信息轉(zhuan)(zhuan)(zhuan)換(huan)成數字(zi)信號輸入到(dao)(dao)控(kong)制(zhi)(zhi)單元，再(zai)經過控(kong)制(zhi)(zhi)單元對(dui)這(zhe)些信號進(jin)行運(yun)算得到(dao)(dao)一(yi)個(ge)最佳(jia)的(de)力矩(ju)最后控(kong)制(zhi)(zhi)驅使電(dian)(dian)動(dong)(dong)機(ji)工(gong)作。以(yi)上就是(shi)(shi)整個(ge)電(dian)(dian)動(dong)(dong)助(zhu)力系(xi)(xi)統(tong)(tong)構成和(he)工(gong)作的(de)過程(cheng)，不(bu)難(nan)看出扭矩(ju)傳(chuan)感(gan)器(qi)在電(dian)(dian)動(dong)(dong)助(zhu)力系(xi)(xi)統(tong)(tong)中是(shi)(shi)最為重(zhong)要(yao)的(de)器(qi)件之(zhi)一(yi)。

扭矩傳感器的作用

扭(niu)矩傳(chuan)感器(qi)在電動(dong)(dong)(dong)助(zhu)(zhu)(zhu)(zhu)力(li)轉(zhuan)(zhuan)向(xiang)(xiang)系(xi)(xi)統(tong)(tong)中的(de)(de)作(zuo)用(yong)(yong)電動(dong)(dong)(dong)助(zhu)(zhu)(zhu)(zhu)力(li)轉(zhuan)(zhuan)向(xiang)(xiang)系(xi)(xi)統(tong)(tong)可(ke)(ke)以稱之為EPS，它(ta)(ta)就(jiu)是一種(zhong)直接依靠電機(ji)提(ti)供(gong)輔(fu)助(zhu)(zhu)(zhu)(zhu)扭(niu)矩的(de)(de)動(dong)(dong)(dong)力(li)轉(zhuan)(zhuan)向(xiang)(xiang)系(xi)(xi)統(tong)(tong)。在整(zheng)個(ge)系(xi)(xi)統(tong)(tong)中，扭(niu)矩傳(chuan)感器(qi)起(qi)到決定性(xing)作(zuo)用(yong)(yong)。與傳(chuan)統(tong)(tong)的(de)(de)液壓(ya)(ya)助(zhu)(zhu)(zhu)(zhu)力(li)轉(zhuan)(zhuan)向(xiang)(xiang)系(xi)(xi)統(tong)(tong)不(bu)同的(de)(de)是電動(dong)(dong)(dong)助(zhu)(zhu)(zhu)(zhu)力(li)轉(zhuan)(zhuan)向(xiang)(xiang)系(xi)(xi)統(tong)(tong)具(ju)有性(xing)能應用(yong)(yong)上更大(da)的(de)(de)優勢。它(ta)(ta)不(bu)光在需要轉(zhuan)(zhuan)向(xiang)(xiang)時才啟(qi)動(dong)(dong)(dong)電機(ji)產(chan)生助(zhu)(zhu)(zhu)(zhu)力(li)，這樣能大(da)大(da)的(de)(de)減少發(fa)動(dong)(dong)(dong)機(ji)燃油消耗。電動(dong)(dong)(dong)助(zhu)(zhu)(zhu)(zhu)力(li)能在各種(zhong)行駛工況下提(ti)供(gong)最佳助(zhu)(zhu)(zhu)(zhu)力(li)，減小由路(lu)面不(bu)平所引起(qi)電動(dong)(dong)(dong)機(ji)的(de)(de)輸(shu)出轉(zhuan)(zhuan)矩通(tong)過傳(chuan)動(dong)(dong)(dong)裝置的(de)(de)作(zuo)用(yong)(yong)而(er)助(zhu)(zhu)(zhu)(zhu)力(li)向(xiang)(xiang)系(xi)(xi)的(de)(de)擾動(dong)(dong)(dong)，改善汽(qi)(qi)車(che)的(de)(de)轉(zhuan)(zhuan)向(xiang)(xiang)特(te)性(xing)，提(ti)高汽(qi)(qi)車(che)的(de)(de)主動(dong)(dong)(dong)安全性(xing)。和(he)液壓(ya)(ya)助(zhu)(zhu)(zhu)(zhu)力(li)相比沒有液壓(ya)(ya)回路(lu)，調(diao)整(zheng)和(he)檢測更容易，裝配自(zi)動(dong)(dong)(dong)化程度更高，且可(ke)(ke)通(tong)過設(she)置不(bu)同的(de)(de)程序(xu)，快(kuai)速以及不(bu)同車(che)型匹配，縮短生產(chan)和(he)開(kai)發(fa)周(zhou)期。

扭矩傳感器的(de)作用是測量(liang)動態扭矩和靜態扭矩，其(qi)檢測穩(wen)定(ding)性、抗干擾性，以及精度都很好，每次使用不(bu)需(xu)要調(diao)整為零。

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