【汽車穩壓器】汽車穩壓器的(de)作用?汽車穩壓器有用嗎

汽車穩壓器的作用?

汽車電源穩壓器，也(ye)稱電子整流器、電子穩(wen)(wen)壓器。多(duo)數產品表述(shu)成(cheng)可以穩(wen)(wen)定汽車12V主供電回路的電壓，提升汽車動力性能、節省燃油(you)，甚(shen)至(zhi)有些產品就直接命名為電子節油(you)器。

汽(qi)車供(gong)電(dian)(dian)(dian)的電(dian)(dian)(dian)源有蓄電(dian)(dian)(dian)池(chi)和發(fa)電(dian)(dian)(dian)機。汽(qi)車發(fa)動(dong)前(qian)，由蓄電(dian)(dian)(dian)池(chi)供(gong)電(dian)(dian)(dian)，電(dian)(dian)(dian)壓(ya)在(zai)12.0~12.6V之(zhi)間；汽(qi)車發(fa)動(dong)后(hou)，由發(fa)動(dong)機帶動(dong)發(fa)電(dian)(dian)(dian)機供(gong)電(dian)(dian)(dian)，供(gong)電(dian)(dian)(dian)電(dian)(dian)(dian)壓(ya)在(zai)13.3~14.8V之(zhi)間。電(dian)(dian)(dian)壓(ya)依車型、車輛所(suo)處(chu)工作(zuo)狀(zhuang)態不同而(er)有所(suo)差別。

蓄電池供電主要保證(zheng)汽車沒發動時的基本電路(lu)供電功能(neng)，如：ECU和儀表盤(pan)供電、燈光照(zhao)明等(deng)，還要為起動發動機(ji)提(ti)供保障。

發動(dong)機(ji)起(qi)動(dong)后，發電(dian)(dian)機(ji)投入(ru)工(gong)作(zuo)，因(yin)其輸出電(dian)(dian)壓高(gao)于蓄電(dian)(dian)池的(de)最高(gao)電(dian)(dian)壓，因(yin)此，原本(ben)處于供電(dian)(dian)狀(zhuang)態的(de)蓄電(dian)(dian)池轉(zhuan)為被充電(dian)(dian)狀(zhuang)態，汽車供電(dian)(dian)回路由發電(dian)(dian)機(ji)保證供電(dian)(dian)。而發動(dong)機(ji)的(de)工(gong)作(zuo)狀(zhuang)態有：怠速(su)、變檔(dang)、加速(su)、減速(su)和(he)巡航，還(huan)有不定(ding)時的(de)汽車空調短時負荷(he)，這些都會影(ying)響(xiang)發動(dong)機(ji)，導致轉(zhuan)速(su)發生變化，相應(ying)的(de)發電(dian)(dian)機(ji)轉(zhuan)速(su)也隨之(zhi)波動(dong)。

發電機與蓄電池不同，沒有電量儲備，其電量都是由發動機的動能瞬時轉化過來；因此，電路中的任何負荷變化，不論變化大小、時間長短，都要發電機來響應和承擔。發電機的供電響應滯后就會導致電壓波動，使汽車動力及操控性能變差。

汽車穩壓器有用嗎

發(fa)電(dian)(dian)(dian)機供電(dian)(dian)(dian)時因(yin)為沒有電(dian)(dian)(dian)量(liang)儲備，電(dian)(dian)(dian)壓始終在(zai)(zai)波(bo)動中(zhong)，在(zai)(zai)發(fa)動機工作狀態變化范圍越大時，電(dian)(dian)(dian)壓波(bo)動也(ye)會(hui)越劇烈。這(zhe)會(hui)對汽車(che)工作穩定(ding)性、可靠性造成(cheng)影響，也(ye)會(hui)降低發(fa)動機的(de)點火可靠性、噴油量(liang)的(de)準確性，從而(er)影響汽車(che)駕(jia)駛性能和(he)綜(zong)合性能。尤其是一些小排量(liang)大車(che)身(shen)的(de)款式會(hui)更為明(ming)顯，通常表現為起步緩(huan)慢、加速滯后(hou)，油門踩到底車(che)速上不去。

汽(qi)車原廠是由多家配(pei)套廠提供部件裝配(pei)，因此，各(ge)電(dian)(dian)(dian)(dian)路系(xi)(xi)(xi)統，如：點火系(xi)(xi)(xi)統、ECU系(xi)(xi)(xi)統、儀表系(xi)(xi)(xi)統、ABS系(xi)(xi)(xi)統等，都是在本系(xi)(xi)(xi)統上(shang)加寬適應(ying)電(dian)(dian)(dian)(dian)壓范圍，沒有(you)(you)總(zong)體的(de)穩壓考(kao)慮。汽(qi)車由發(fa)電(dian)(dian)(dian)(dian)機(ji)(ji)供電(dian)(dian)(dian)(dian)后，各(ge)系(xi)(xi)(xi)統只管自己(ji)系(xi)(xi)(xi)統可以(yi)適應(ying)，不(bu)管別的(de)電(dian)(dian)(dian)(dian)子(zi)控制(zhi)系(xi)(xi)(xi)統；故此，由于發(fa)動(dong)機(ji)(ji)轉速變化(hua)造(zao)成了電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)壓穩定(ding)性不(bu)良，有(you)(you)必要裝備一定(ding)儲(chu)電(dian)(dian)(dian)(dian)能力的(de)總(zong)回路的(de)穩壓器，才(cai)能保證整車穩定(ding)供電(dian)(dian)(dian)(dian)，提高整車各(ge)個電(dian)(dian)(dian)(dian)子(zi)系(xi)(xi)(xi)統的(de)全(quan)面穩定(ding)性和可靠性。