在(zai)方向盤下邊的(de)方向桿上找(zhao)到助(zhu)力(li)電(dian)機,電(dian)機上一(yi)般有(you)一(yi)個小鐵蓋護著的(de)、帶(dai)四根(gen)線(帶(dai)有(you)一(yi)個插頭)的(de)就是轉向助(zhu)力(li)扭矩傳感(gan)器,拆下小鐵蓋就能看到。
電(dian)(dian)(dian)動(dong)助力轉(zhuan)向系統(tong)(tong)(tong)主要由(you)扭(niu)矩(ju)傳感器(qi)(qi)(qi),車(che)速傳感器(qi)(qi)(qi),電(dian)(dian)(dian)動(dong)機,減速機構(gou)與電(dian)(dian)(dian)子控(kong)(kong)制(zhi)(zhi)(zhi)單元(yuan)等組(zu)成(cheng)。該系統(tong)(tong)(tong)通過扭(niu)矩(ju)傳感器(qi)(qi)(qi)感知駕駛員在(zai)轉(zhuan)向操(cao)作(zuo)時方向盤產生的(de)扭(niu)矩(ju)力和(he)轉(zhuan)向角度,就會把操(cao)控(kong)(kong)信息轉(zhuan)換成(cheng)數字信號輸入到控(kong)(kong)制(zhi)(zhi)(zhi)單元(yuan),再(zai)經過控(kong)(kong)制(zhi)(zhi)(zhi)單元(yuan)對這些(xie)信號進行運算得到一個最(zui)佳(jia)的(de)力矩(ju)最(zui)后控(kong)(kong)制(zhi)(zhi)(zhi)驅使(shi)電(dian)(dian)(dian)動(dong)機工作(zuo)。以上就是整個電(dian)(dian)(dian)動(dong)助力系統(tong)(tong)(tong)構(gou)成(cheng)和(he)工作(zuo)的(de)過程(cheng),不難(nan)看出扭(niu)矩(ju)傳感器(qi)(qi)(qi)在(zai)電(dian)(dian)(dian)動(dong)助力系統(tong)(tong)(tong)中(zhong)是最(zui)為重要的(de)器(qi)(qi)(qi)件之(zhi)一。
扭矩傳感(gan)器(qi)在電動助(zhu)(zhu)(zhu)(zhu)力(li)(li)轉(zhuan)(zhuan)(zhuan)向(xiang)系(xi)(xi)(xi)統(tong)(tong)(tong)中(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)作用(yong)電動助(zhu)(zhu)(zhu)(zhu)力(li)(li)轉(zhuan)(zhuan)(zhuan)向(xiang)系(xi)(xi)(xi)統(tong)(tong)(tong)可以稱之為EPS,它就是(shi)一種(zhong)直接依(yi)靠(kao)電機(ji)提(ti)(ti)供(gong)輔助(zhu)(zhu)(zhu)(zhu)扭矩的(de)(de)(de)(de)(de)(de)(de)(de)動力(li)(li)轉(zhuan)(zhuan)(zhuan)向(xiang)系(xi)(xi)(xi)統(tong)(tong)(tong)。在整個系(xi)(xi)(xi)統(tong)(tong)(tong)中(zhong),扭矩傳感(gan)器(qi)起到決(jue)定(ding)性作用(yong)。與傳統(tong)(tong)(tong)的(de)(de)(de)(de)(de)(de)(de)(de)液(ye)壓助(zhu)(zhu)(zhu)(zhu)力(li)(li)轉(zhuan)(zhuan)(zhuan)向(xiang)系(xi)(xi)(xi)統(tong)(tong)(tong)不同(tong)的(de)(de)(de)(de)(de)(de)(de)(de)是(shi)電動助(zhu)(zhu)(zhu)(zhu)力(li)(li)轉(zhuan)(zhuan)(zhuan)向(xiang)系(xi)(xi)(xi)統(tong)(tong)(tong)具有性能應用(yong)上更(geng)大的(de)(de)(de)(de)(de)(de)(de)(de)優勢(shi)。它不光在需要轉(zhuan)(zhuan)(zhuan)向(xiang)時才啟動電機(ji)產(chan)生助(zhu)(zhu)(zhu)(zhu)力(li)(li),這(zhe)樣(yang)能大大的(de)(de)(de)(de)(de)(de)(de)(de)減少發動機(ji)燃油消耗(hao)。電動助(zhu)(zhu)(zhu)(zhu)力(li)(li)能在各種(zhong)行駛工況下提(ti)(ti)供(gong)最佳助(zhu)(zhu)(zhu)(zhu)力(li)(li),減小由路面(mian)不平所引(yin)起電動機(ji)的(de)(de)(de)(de)(de)(de)(de)(de)輸出轉(zhuan)(zhuan)(zhuan)矩通(tong)過傳動裝置的(de)(de)(de)(de)(de)(de)(de)(de)作用(yong)而助(zhu)(zhu)(zhu)(zhu)力(li)(li)向(xiang)系(xi)(xi)(xi)的(de)(de)(de)(de)(de)(de)(de)(de)擾動,改善(shan)汽車(che)(che)的(de)(de)(de)(de)(de)(de)(de)(de)轉(zhuan)(zhuan)(zhuan)向(xiang)特性,提(ti)(ti)高汽車(che)(che)的(de)(de)(de)(de)(de)(de)(de)(de)主動安全性。和(he)液(ye)壓助(zhu)(zhu)(zhu)(zhu)力(li)(li)相比沒有液(ye)壓回路,調整和(he)檢測更(geng)容(rong)易,裝配自動化程度更(geng)高,且可通(tong)過設置不同(tong)的(de)(de)(de)(de)(de)(de)(de)(de)程序,快(kuai)速(su)以及(ji)不同(tong)車(che)(che)型匹(pi)配,縮短生產(chan)和(he)開發周期。
扭(niu)矩(ju)傳感(gan)器(qi)的作用(yong)是測量(liang)動態扭(niu)矩(ju)和靜態扭(niu)矩(ju),其(qi)檢測穩定性、抗(kang)干擾性,以及精度都很好,每(mei)次使用(yong)不需要調(diao)整為零。
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