在方向(xiang)盤下邊的(de)方向(xiang)桿(gan)上(shang)找到助力(li)電機,電機上(shang)一(yi)(yi)般(ban)有(you)一(yi)(yi)個(ge)小鐵蓋護著的(de)、帶四根(gen)線(帶有(you)一(yi)(yi)個(ge)插頭)的(de)就是轉向(xiang)助力(li)扭矩傳(chuan)感(gan)器,拆下小鐵蓋就能看到。
電(dian)動(dong)助力(li)(li)轉(zhuan)向(xiang)系(xi)(xi)統(tong)(tong)主(zhu)要(yao)由(you)扭(niu)矩(ju)傳(chuan)(chuan)感器(qi),車速(su)傳(chuan)(chuan)感器(qi),電(dian)動(dong)機,減速(su)機構與電(dian)子控(kong)(kong)制(zhi)單元(yuan)等組(zu)成(cheng)。該系(xi)(xi)統(tong)(tong)通過扭(niu)矩(ju)傳(chuan)(chuan)感器(qi)感知駕駛員在轉(zhuan)向(xiang)操作(zuo)(zuo)時(shi)方向(xiang)盤產生的扭(niu)矩(ju)力(li)(li)和轉(zhuan)向(xiang)角度,就會把操控(kong)(kong)信息轉(zhuan)換成(cheng)數(shu)字(zi)信號輸入到控(kong)(kong)制(zhi)單元(yuan),再經過控(kong)(kong)制(zhi)單元(yuan)對這些信號進行運算(suan)得到一個最佳(jia)的力(li)(li)矩(ju)最后控(kong)(kong)制(zhi)驅使電(dian)動(dong)機工作(zuo)(zuo)。以上就是整個電(dian)動(dong)助力(li)(li)系(xi)(xi)統(tong)(tong)構成(cheng)和工作(zuo)(zuo)的過程,不難看出(chu)扭(niu)矩(ju)傳(chuan)(chuan)感器(qi)在電(dian)動(dong)助力(li)(li)系(xi)(xi)統(tong)(tong)中是最為重要(yao)的器(qi)件之一。
扭(niu)矩(ju)傳(chuan)感(gan)器(qi)在電(dian)動(dong)(dong)助(zhu)(zhu)(zhu)(zhu)力轉(zhuan)(zhuan)(zhuan)向系(xi)(xi)(xi)統(tong)(tong)中的(de)作(zuo)用電(dian)動(dong)(dong)助(zhu)(zhu)(zhu)(zhu)力轉(zhuan)(zhuan)(zhuan)向系(xi)(xi)(xi)統(tong)(tong)可以稱之為EPS,它(ta)就是一種直(zhi)接依(yi)靠電(dian)機提(ti)(ti)供(gong)輔(fu)助(zhu)(zhu)(zhu)(zhu)扭(niu)矩(ju)的(de)動(dong)(dong)力轉(zhuan)(zhuan)(zhuan)向系(xi)(xi)(xi)統(tong)(tong)。在整個系(xi)(xi)(xi)統(tong)(tong)中,扭(niu)矩(ju)傳(chuan)感(gan)器(qi)起(qi)到決(jue)定(ding)性(xing)(xing)作(zuo)用。與傳(chuan)統(tong)(tong)的(de)液(ye)(ye)(ye)壓(ya)助(zhu)(zhu)(zhu)(zhu)力轉(zhuan)(zhuan)(zhuan)向系(xi)(xi)(xi)統(tong)(tong)不(bu)同的(de)是電(dian)動(dong)(dong)助(zhu)(zhu)(zhu)(zhu)力轉(zhuan)(zhuan)(zhuan)向系(xi)(xi)(xi)統(tong)(tong)具(ju)有(you)(you)性(xing)(xing)能(neng)應(ying)用上更(geng)大(da)的(de)優勢(shi)。它(ta)不(bu)光在需要(yao)轉(zhuan)(zhuan)(zhuan)向時(shi)才啟動(dong)(dong)電(dian)機產生助(zhu)(zhu)(zhu)(zhu)力,這(zhe)樣能(neng)大(da)大(da)的(de)減少發(fa)動(dong)(dong)機燃油消耗。電(dian)動(dong)(dong)助(zhu)(zhu)(zhu)(zhu)力能(neng)在各種行駛(shi)工況下提(ti)(ti)供(gong)最佳助(zhu)(zhu)(zhu)(zhu)力,減小(xiao)由路面不(bu)平所引起(qi)電(dian)動(dong)(dong)機的(de)輸出轉(zhuan)(zhuan)(zhuan)矩(ju)通過(guo)傳(chuan)動(dong)(dong)裝置的(de)作(zuo)用而(er)助(zhu)(zhu)(zhu)(zhu)力向系(xi)(xi)(xi)的(de)擾動(dong)(dong),改善汽(qi)車(che)的(de)轉(zhuan)(zhuan)(zhuan)向特性(xing)(xing),提(ti)(ti)高(gao)汽(qi)車(che)的(de)主(zhu)動(dong)(dong)安全性(xing)(xing)。和液(ye)(ye)(ye)壓(ya)助(zhu)(zhu)(zhu)(zhu)力相比沒有(you)(you)液(ye)(ye)(ye)壓(ya)回路,調整和檢測更(geng)容易(yi),裝配自(zi)動(dong)(dong)化程度(du)更(geng)高(gao),且可通過(guo)設置不(bu)同的(de)程序,快速以及(ji)不(bu)同車(che)型匹配,縮短生產和開發(fa)周期。
扭(niu)矩傳感器的作用是測(ce)量動態扭(niu)矩和靜(jing)態扭(niu)矩,其檢測(ce)穩定(ding)性、抗(kang)干(gan)擾性,以(yi)及(ji)精(jing)度都很好,每次使(shi)用不需(xu)要(yao)調整為零。
馬(ma)(ma)自(zi)達ATENZA在外觀內(nei)飾和動(dong)力都(dou)進行了全面(mian)升級,同時車身尺寸也大有長進。馬(ma)(ma)自(zi)達ATENZA進口(kou)上市后(hou),將與馬(ma)(ma)自(zi)達ATENZA、馬(ma)(ma)自(zi)達睿翼(yi)形成三(san)代同堂銷售的(de)局面(mian),而目前該車的(de)國產化(hua)工作也在進行中,最快(kuai)可能會在今年年內(nei)正式(shi)發(fa)布(bu)。
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