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起動繼電器簡介

起動繼電器：保(bao)護線路，點火開(kai)關(guan)。

汽車啟動(dong)繼電器(qi)的作用：

1、主要是通過控(kong)制(zhi)低壓線(xian)路的電(dian)流來控(kong)制(zhi)高壓線(xian)路的電(dian)流，起到(dao)電(dian)流開關的作(zuo)用(yong)。啟(qi)動(dong)繼電(dian)器是啟(qi)動(dong)系統組成(cheng)部件之一，在(zai)汽車上(shang)主要作(zuo)用(yong)為(wei)小(xiao)電(dian)流；

2、控制(zhi)(zhi)大電(dian)(dian)(dian)流方式啟動(dong)(dong)馬達轉(zhuan)動(dong)(dong)，從而帶動(dong)(dong)發(fa)電(dian)(dian)(dian)機內部磁(ci)(ci)電(dian)(dian)(dian)機轉(zhuan)子轉(zhuan)動(dong)(dong)，給點火器(qi)輸入點火脈沖信(xin)號，使點火器(qi)產生電(dian)(dian)(dian)火花(hua)，點燃汽缸內的(de)混(hun)合燃氣并做(zuo)功。繼電(dian)(dian)(dian)器(qi)屬于開(kai)關類，它(ta)是(shi)利用電(dian)(dian)(dian)磁(ci)(ci)原理、機電(dian)(dian)(dian)原理使接點閉合或斷開(kai)來驅動(dong)(dong)或控制(zhi)(zhi)相關電(dian)(dian)(dian)路的(de)；

3、繼(ji)電(dian)(dian)器為一(yi)種控(kong)(kong)制(zhi)器件，它有(you)受控(kong)(kong)系統（輸(shu)(shu)入(ru)回路(lu)(lu)）和(he)控(kong)(kong)制(zhi)系統（輸(shu)(shu)出回路(lu)(lu)）兩部分(fen)。當輸(shu)(shu)入(ru)量（電(dian)(dian)、磁(ci)、光(guang)、熱等(deng)物理量）達到某一(yi)定值(zhi)時(shi)，輸(shu)(shu)出量躍變(bian)式(shi)地由(you)零變(bian)化到一(yi)定值(zhi)（或由(you)一(yi)定值(zhi)跳(tiao)變(bian)到零），從(cong)而實(shi)現對電(dian)(dian)路(lu)(lu)的(de)控(kong)(kong)制(zhi)、保護、調節和(he)傳遞(di)信息等(deng)目的(de)。

啟動(dong)(dong)繼電(dian)器是(shi)單(dan)獨部(bu)件，其作(zuo)用是(shi)接通、斷開吸(xi)引(yin)線圈和(he)保持線圈電(dian)路。在電(dian)冰箱、空調器這類小型制(zhi)(zhi)冷(leng)設備中(zhong)，制(zhi)(zhi)冷(leng)壓縮機(ji)多采(cai)用單(dan)相(xiang)分(fen)相(xiang)式異步電(dian)動(dong)(dong)機(ji)，啟動(dong)(dong)繼電(dian)器的作(zuo)用是(shi)幫助電(dian)動(dong)(dong)機(ji)啟動(dong)(dong)，啟動(dong)(dong)完(wan)成后(hou)自動(dong)(dong)斷開副繞組(zu)，避(bi)免燒壞副繞組(zu)線圈。

新城市獵人簡介

       "BJ2020VB新城市(shi)獵人"是北京吉(ji)普(pu)汽車有(you)限(xian)公(gong)司引進(jin)戴(dai)姆勒-克萊斯勒公(gong)司的(de)先(xian)進(jin)技(ji)術(shu)，同時結合中國實際情況研制(zhi)開發的(de)輕型越(yue)(yue)野車，裝(zhuang)(zhuang)備(bei)(bei)了498電噴發動(dong)機(ji)、SIEMENS電噴控(kong)制(zhi)系(xi)統(tong)、五速(su)變速(su)箱，充(chong)分(fen)保證車輛的(de)動(dong)力(li)(li)性能；前盤(pan)后鼓制(zhi)動(dong)系(xi)統(tong)，增加了制(zhi)動(dong)的(de)可靠(kao)性；動(dong)力(li)(li)轉向，增加了駕駛(shi)(shi)的(de)舒適(shi)性。 　　BJ2020VB裝(zhuang)(zhuang)備(bei)(bei)2.5升(sheng)四缸多(duo)點(dian)電子噴射發動(dong)機(ji)。先(xian)進(jin)的(de)多(duo)點(dian)燃油(you)噴射系(xi)統(tong)是根據中國道(dao)路、氣候、燃油(you)等(deng)諸多(duo)因素重新設計、標定的(de)，它(ta)保證了發動(dong)機(ji)時刻運轉在最佳的(de)工(gong)作狀態，為(wei)傳(chuan)動(dong)系(xi)統(tong)輸出強勁動(dong)力(li)(li)；同時可裝(zhuang)(zhuang)備(bei)(bei)三元催(cui)化裝(zhuang)(zhuang)置，配(pei)合閉環控(kong)制(zhi)技(ji)術(shu)，排(pai)放達到歐(ou)洲I號法規(gui)要求；裝(zhuang)(zhuang)備(bei)(bei)五速(su)手動(dong)變速(su)器，與傳(chuan)統(tong)四速(su)變速(su)器相比(bi)，高速(su)行駛(shi)(shi)時更加省油(you)；裝(zhuang)(zhuang)備(bei)(bei)4X4分(fen)動(dong)器，充(chong)分(fen)保證車輛的(de)越(yue)(yue)野能力(li)(li)。