在方(fang)向盤下邊(bian)的方(fang)向桿上找到(dao)(dao)助力(li)電機(ji),電機(ji)上一(yi)般有一(yi)個(ge)(ge)小鐵蓋護著(zhu)的、帶四根線(帶有一(yi)個(ge)(ge)插(cha)頭)的就(jiu)是(shi)轉(zhuan)向助力(li)扭矩(ju)傳感器,拆下小鐵蓋就(jiu)能看到(dao)(dao)。
電(dian)動(dong)助(zhu)力(li)轉(zhuan)向系(xi)(xi)統主(zhu)要(yao)由扭矩(ju)(ju)傳(chuan)(chuan)感器(qi)(qi),車速(su)傳(chuan)(chuan)感器(qi)(qi),電(dian)動(dong)機(ji),減速(su)機(ji)構與(yu)電(dian)子控(kong)制(zhi)單(dan)元等組成。該系(xi)(xi)統通過(guo)扭矩(ju)(ju)傳(chuan)(chuan)感器(qi)(qi)感知駕駛員在(zai)轉(zhuan)向操(cao)作時方向盤(pan)產生(sheng)的(de)扭矩(ju)(ju)力(li)和(he)轉(zhuan)向角度,就會把操(cao)控(kong)信(xin)息轉(zhuan)換成數字信(xin)號輸入到控(kong)制(zhi)單(dan)元,再經過(guo)控(kong)制(zhi)單(dan)元對這些信(xin)號進行運算得到一個(ge)最佳的(de)力(li)矩(ju)(ju)最后(hou)控(kong)制(zhi)驅使(shi)電(dian)動(dong)機(ji)工作。以上就是整(zheng)個(ge)電(dian)動(dong)助(zhu)力(li)系(xi)(xi)統構成和(he)工作的(de)過(guo)程,不難(nan)看(kan)出(chu)扭矩(ju)(ju)傳(chuan)(chuan)感器(qi)(qi)在(zai)電(dian)動(dong)助(zhu)力(li)系(xi)(xi)統中(zhong)是最為(wei)重要(yao)的(de)器(qi)(qi)件(jian)之(zhi)一。
扭矩(ju)傳(chuan)感(gan)器在電(dian)(dian)動(dong)(dong)(dong)助(zhu)(zhu)(zhu)力(li)轉(zhuan)向(xiang)系統(tong)中的(de)(de)作(zuo)(zuo)用(yong)電(dian)(dian)動(dong)(dong)(dong)助(zhu)(zhu)(zhu)力(li)轉(zhuan)向(xiang)系統(tong)可(ke)以(yi)稱之為(wei)EPS,它(ta)就是(shi)一種直接(jie)依靠(kao)電(dian)(dian)機提(ti)供(gong)輔助(zhu)(zhu)(zhu)扭矩(ju)的(de)(de)動(dong)(dong)(dong)力(li)轉(zhuan)向(xiang)系統(tong)。在整個系統(tong)中,扭矩(ju)傳(chuan)感(gan)器起到決定(ding)性(xing)作(zuo)(zuo)用(yong)。與傳(chuan)統(tong)的(de)(de)液壓(ya)(ya)助(zhu)(zhu)(zhu)力(li)轉(zhuan)向(xiang)系統(tong)不同的(de)(de)是(shi)電(dian)(dian)動(dong)(dong)(dong)助(zhu)(zhu)(zhu)力(li)轉(zhuan)向(xiang)系統(tong)具有性(xing)能(neng)應用(yong)上更大(da)(da)的(de)(de)優(you)勢。它(ta)不光在需要轉(zhuan)向(xiang)時才啟動(dong)(dong)(dong)電(dian)(dian)機產生助(zhu)(zhu)(zhu)力(li),這樣能(neng)大(da)(da)大(da)(da)的(de)(de)減少發動(dong)(dong)(dong)機燃油消(xiao)耗。電(dian)(dian)動(dong)(dong)(dong)助(zhu)(zhu)(zhu)力(li)能(neng)在各種行駛工況下提(ti)供(gong)最佳助(zhu)(zhu)(zhu)力(li),減小(xiao)由路面(mian)不平所引起電(dian)(dian)動(dong)(dong)(dong)機的(de)(de)輸出轉(zhuan)矩(ju)通(tong)過傳(chuan)動(dong)(dong)(dong)裝置的(de)(de)作(zuo)(zuo)用(yong)而(er)助(zhu)(zhu)(zhu)力(li)向(xiang)系的(de)(de)擾動(dong)(dong)(dong),改善汽(qi)車(che)的(de)(de)轉(zhuan)向(xiang)特性(xing),提(ti)高汽(qi)車(che)的(de)(de)主動(dong)(dong)(dong)安(an)全性(xing)。和(he)液壓(ya)(ya)助(zhu)(zhu)(zhu)力(li)相比沒有液壓(ya)(ya)回路,調整和(he)檢測更容易,裝配自動(dong)(dong)(dong)化(hua)程度更高,且可(ke)通(tong)過設置不同的(de)(de)程序,快速以(yi)及不同車(che)型匹配,縮短(duan)生產和(he)開(kai)發周期。
扭(niu)矩(ju)傳感器的作用(yong)(yong)是測量(liang)動態扭(niu)矩(ju)和靜(jing)態扭(niu)矩(ju),其檢測穩定性、抗干擾性,以及(ji)精度都很好(hao),每次使(shi)用(yong)(yong)不需要調整(zheng)為零。
從中國重汽VGV官(guan)方(fang)獲(huo)悉,旗(qi)下U75定制版車(che)(che)型已(yi)全面上(shang)市(shi),此次(ci)共推出2款(kuan)車(che)(che)型配置,分為(wei)U75 SG版5座、7座版及U75鉑金(jin)VP版。售價為(wei)12.49萬元(yuan)、12.69萬元(yuan)和26萬元(yuan)。
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