逆(ni)變(bian)器(qi)總成逆(ni)變(bian)器(qi)作(zuo)用就是把(ba)直流(liu)(liu)電(dian)(dian)變(bian)換為交流(liu)(liu)電(dian)(dian),逆(ni)變(bian)器(qi)主(zhu)流(liu)(liu)有2種連接方(fang)式:
1、直接連在汽車(che)電瓶上,功(gong)(gong)率較(jiao)高(gao),可以為更多(duo)大(da)功(gong)(gong)率用(yong)電器(qi)使用(yong),缺點是風險(xian)比較(jiao)大(da);
2、通過點煙器(qi)電(dian)源(yuan)轉(zhuan)換(huan),輸(shu)(shu)(shu)出(chu)功(gong)(gong)(gong)率(lv)(lv)比(bi)(bi)較小,但也足夠大多數小型電(dian)器(qi)使用。逆(ni)變(bian)(bian)器(qi)是把(ba)直(zhi)流電(dian)能(電(dian)池、蓄電(dian)瓶)轉(zhuan)變(bian)(bian)成交(jiao)流電(dian)(一般為220V,50Hz正弦波),其(qi)由逆(ni)變(bian)(bian)橋、控制邏輯和濾波電(dian)路組成。逆(ni)變(bian)(bian)器(qi)在(zai)工作時其(qi)本身也要(yao)消耗一部分電(dian)力,因此輸(shu)(shu)(shu)入(ru)功(gong)(gong)(gong)率(lv)(lv)要(yao)大于其(qi)輸(shu)(shu)(shu)出(chu)功(gong)(gong)(gong)率(lv)(lv)。逆(ni)變(bian)(bian)器(qi)的(de)效率(lv)(lv)即(ji)是逆(ni)變(bian)(bian)器(qi)輸(shu)(shu)(shu)出(chu)功(gong)(gong)(gong)率(lv)(lv)與(yu)輸(shu)(shu)(shu)入(ru)功(gong)(gong)(gong)率(lv)(lv)之比(bi)(bi),即(ji)逆(ni)變(bian)(bian)器(qi)效率(lv)(lv)為輸(shu)(shu)(shu)出(chu)功(gong)(gong)(gong)率(lv)(lv)比(bi)(bi)上輸(shu)(shu)(shu)入(ru)功(gong)(gong)(gong)率(lv)(lv)。
外(wai)形與動力方(fang)面(mian)的參數如(ru)上(shang)表所示,由于此(ci)次將在國內上(shang)市的車型(xing)沿用(yong)了北美的第四代(而非年初在底特律車展亮相(xiang)的采(cai)用全新(xin)平(ping)臺(tai)的第五代(dai)2008款(kuan)道奇Caravan車型),因此相(xiang)對老舊平(ping)臺(tai)帶來的發動機以及變速箱的(de)相對(dui)陳(chen)舊可說是此次進入國內車(che)型(xing)的(de)最大遺憾。不過實(shi)際上(shang)與(yu)之互為競爭關系的(de)GL8在北美已經是停產車(che)型(xing),同樣的(de)軟肋也存在于對(dui)手(shou)身上(shang)。
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