在方向(xiang)盤下邊的(de)方向(xiang)桿(gan)上找(zhao)到助力電機(ji),電機(ji)上一般有一個(ge)小鐵蓋(gai)護(hu)著(zhu)的(de)、帶(dai)四根(gen)線(帶(dai)有一個(ge)插頭)的(de)就是轉向(xiang)助力扭矩傳感器,拆下小鐵蓋(gai)就能看到。
電(dian)動(dong)(dong)(dong)助力(li)轉(zhuan)向系(xi)(xi)統主(zhu)要由扭矩(ju)傳(chuan)(chuan)(chuan)感(gan)器(qi)(qi)(qi),車速傳(chuan)(chuan)(chuan)感(gan)器(qi)(qi)(qi),電(dian)動(dong)(dong)(dong)機,減速機構與電(dian)子控(kong)制(zhi)單(dan)元等組(zu)成(cheng)。該系(xi)(xi)統通過扭矩(ju)傳(chuan)(chuan)(chuan)感(gan)器(qi)(qi)(qi)感(gan)知駕駛員在(zai)轉(zhuan)向操(cao)(cao)作(zuo)時(shi)方向盤(pan)產(chan)生的扭矩(ju)力(li)和(he)轉(zhuan)向角(jiao)度(du),就(jiu)會把操(cao)(cao)控(kong)信息轉(zhuan)換成(cheng)數字信號(hao)輸(shu)入到(dao)控(kong)制(zhi)單(dan)元,再(zai)經過控(kong)制(zhi)單(dan)元對這些信號(hao)進行運算(suan)得到(dao)一(yi)個(ge)最佳的力(li)矩(ju)最后控(kong)制(zhi)驅使電(dian)動(dong)(dong)(dong)機工作(zuo)。以(yi)上就(jiu)是(shi)整個(ge)電(dian)動(dong)(dong)(dong)助力(li)系(xi)(xi)統構成(cheng)和(he)工作(zuo)的過程,不難看出扭矩(ju)傳(chuan)(chuan)(chuan)感(gan)器(qi)(qi)(qi)在(zai)電(dian)動(dong)(dong)(dong)助力(li)系(xi)(xi)統中是(shi)最為重(zhong)要的器(qi)(qi)(qi)件之一(yi)。
扭矩(ju)(ju)傳(chuan)感(gan)器在(zai)(zai)(zai)電(dian)動(dong)助(zhu)(zhu)力(li)(li)(li)轉向系(xi)(xi)統中(zhong)(zhong)的作用(yong)電(dian)動(dong)助(zhu)(zhu)力(li)(li)(li)轉向系(xi)(xi)統可(ke)以(yi)稱之為EPS,它(ta)就是(shi)一種(zhong)直接(jie)依靠電(dian)機提(ti)(ti)供(gong)輔助(zhu)(zhu)扭矩(ju)(ju)的動(dong)力(li)(li)(li)轉向系(xi)(xi)統。在(zai)(zai)(zai)整個系(xi)(xi)統中(zhong)(zhong),扭矩(ju)(ju)傳(chuan)感(gan)器起到決(jue)定性(xing)作用(yong)。與傳(chuan)統的液壓(ya)助(zhu)(zhu)力(li)(li)(li)轉向系(xi)(xi)統不同(tong)(tong)的是(shi)電(dian)動(dong)助(zhu)(zhu)力(li)(li)(li)轉向系(xi)(xi)統具有(you)性(xing)能應用(yong)上更大的優(you)勢(shi)。它(ta)不光在(zai)(zai)(zai)需要轉向時才(cai)啟(qi)動(dong)電(dian)機產(chan)生助(zhu)(zhu)力(li)(li)(li),這樣能大大的減少發動(dong)機燃油(you)消(xiao)耗(hao)。電(dian)動(dong)助(zhu)(zhu)力(li)(li)(li)能在(zai)(zai)(zai)各種(zhong)行駛工況下(xia)提(ti)(ti)供(gong)最佳助(zhu)(zhu)力(li)(li)(li),減小由路面不平(ping)所引(yin)起電(dian)動(dong)機的輸出(chu)轉矩(ju)(ju)通過傳(chuan)動(dong)裝置的作用(yong)而助(zhu)(zhu)力(li)(li)(li)向系(xi)(xi)的擾動(dong),改善(shan)汽車(che)的轉向特性(xing),提(ti)(ti)高汽車(che)的主動(dong)安全性(xing)。和液壓(ya)助(zhu)(zhu)力(li)(li)(li)相(xiang)比沒有(you)液壓(ya)回路,調(diao)整和檢(jian)測更容易,裝配自動(dong)化程度更高,且可(ke)通過設置不同(tong)(tong)的程序,快速以(yi)及不同(tong)(tong)車(che)型匹配,縮(suo)短生產(chan)和開(kai)發周期。
扭矩(ju)傳感器的作(zuo)用(yong)是(shi)測量動態扭矩(ju)和靜態扭矩(ju),其檢測穩定性、抗干擾性,以(yi)及精(jing)度都(dou)很(hen)好,每次使用(yong)不需要調整(zheng)為零(ling)。
州豐田(tian)(tian)第(di)(di)二代豐田(tian)(tian),中文名定(ding)為(wei)雅(ya)力士。是豐田(tian)(tian)旗(qi)下一(yi)款(kuan)重要的全球(qiu)戰略車(che)型,在(zai)1999年第(di)(di)一(yi)代Yaris面世之前,豐田(tian)(tian)在(zai)歐洲(zhou)緊湊型兩廂車(che)市(shi)(shi)場上只是個小角色,市(shi)(shi)場占有率不足(zu)的到(dao)來(lai)徹底的改變了這一(yi)局面,讓豐田(tian)(tian)在(zai)歐洲(zhou)站穩(wen)了腳跟。田(tian)(tian)雅(ya)力士是豐田(tian)(tian)公司一(yi)款(kuan)重要的小型車(che),在(zai)全球(qiu)市(shi)(shi)場取得了巨大成功。
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