【汽車穩(wen)壓(ya)器】汽車穩(wen)壓(ya)器的作用?汽車穩壓器有用嗎

汽車穩壓器的作用?

汽車電源穩壓器，也稱電(dian)子(zi)整流器、電(dian)子(zi)穩壓器。多數產品表述成可以穩定汽車(che)12V主供電(dian)回路的(de)電(dian)壓，提升(sheng)汽車(che)動力性能、節省燃油(you)(you)，甚至有些產品就直接命名(ming)為電(dian)子(zi)節油(you)(you)器。

汽(qi)車(che)供(gong)電(dian)(dian)(dian)(dian)的電(dian)(dian)(dian)(dian)源有蓄電(dian)(dian)(dian)(dian)池和發電(dian)(dian)(dian)(dian)機。汽(qi)車(che)發動(dong)(dong)前(qian)，由蓄電(dian)(dian)(dian)(dian)池供(gong)電(dian)(dian)(dian)(dian)，電(dian)(dian)(dian)(dian)壓(ya)在12.0~12.6V之(zhi)間；汽(qi)車(che)發動(dong)(dong)后，由發動(dong)(dong)機帶動(dong)(dong)發電(dian)(dian)(dian)(dian)機供(gong)電(dian)(dian)(dian)(dian)，供(gong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)在13.3~14.8V之(zhi)間。電(dian)(dian)(dian)(dian)壓(ya)依車(che)型、車(che)輛所處工作狀態(tai)不(bu)同(tong)而有所差別。

蓄電(dian)池供電(dian)主要保(bao)證(zheng)汽(qi)車(che)沒(mei)發動(dong)時的(de)基本電(dian)路供電(dian)功(gong)能，如：ECU和儀(yi)表盤供電(dian)、燈光照明(ming)等(deng)，還要為起(qi)動(dong)發動(dong)機提供保(bao)障。

發(fa)(fa)(fa)(fa)動(dong)(dong)機起動(dong)(dong)后，發(fa)(fa)(fa)(fa)電(dian)機投入(ru)工作，因其(qi)輸出電(dian)壓(ya)高(gao)于蓄電(dian)池的(de)(de)最高(gao)電(dian)壓(ya)，因此(ci)，原(yuan)本處于供電(dian)狀態(tai)的(de)(de)蓄電(dian)池轉為被充電(dian)狀態(tai)，汽車供電(dian)回路(lu)由發(fa)(fa)(fa)(fa)電(dian)機保證供電(dian)。而發(fa)(fa)(fa)(fa)動(dong)(dong)機的(de)(de)工作狀態(tai)有(you)：怠速(su)(su)、變檔、加(jia)速(su)(su)、減速(su)(su)和巡航，還有(you)不(bu)定時(shi)的(de)(de)汽車空調(diao)短時(shi)負(fu)荷，這些都(dou)會(hui)影(ying)響(xiang)發(fa)(fa)(fa)(fa)動(dong)(dong)機，導致轉速(su)(su)發(fa)(fa)(fa)(fa)生變化，相應的(de)(de)發(fa)(fa)(fa)(fa)電(dian)機轉速(su)(su)也隨之波動(dong)(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

發電(dian)(dian)機(ji)供(gong)電(dian)(dian)時因(yin)為(wei)沒有電(dian)(dian)量儲備，電(dian)(dian)壓(ya)始終在(zai)波動(dong)(dong)中，在(zai)發動(dong)(dong)機(ji)工(gong)作狀態(tai)變化范圍越大(da)時，電(dian)(dian)壓(ya)波動(dong)(dong)也會越劇烈。這會對汽車(che)工(gong)作穩(wen)定性(xing)、可靠性(xing)造成影響(xiang)，也會降低發動(dong)(dong)機(ji)的點火可靠性(xing)、噴(pen)油量的準確性(xing)，從而影響(xiang)汽車(che)駕駛性(xing)能和綜合性(xing)能。尤其(qi)是一(yi)些小(xiao)排量大(da)車(che)身的款式(shi)會更為(wei)明顯(xian)，通常表現為(wei)起步緩慢、加(jia)速滯后，油門踩到底車(che)速上(shang)不去。

汽車原廠是由多家配套廠提供部件裝配，因(yin)此(ci)，各電(dian)(dian)(dian)路系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)，如：點火系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)、ECU系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)、儀表系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)、ABS系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)等(deng)，都是在本系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)上(shang)加寬適(shi)應電(dian)(dian)(dian)壓范圍，沒有總體的穩壓考慮。汽車由發電(dian)(dian)(dian)機(ji)供電(dian)(dian)(dian)后，各系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)只管自己(ji)系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)可以(yi)適(shi)應，不管別(bie)的電(dian)(dian)(dian)子控制(zhi)系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)；故(gu)此(ci)，由于發動(dong)機(ji)轉速(su)變化造成了電(dian)(dian)(dian)源電(dian)(dian)(dian)壓穩定(ding)(ding)性不良，有必要裝備一(yi)定(ding)(ding)儲電(dian)(dian)(dian)能力(li)的總回路的穩壓器，才(cai)能保證整車穩定(ding)(ding)供電(dian)(dian)(dian)，提高整車各個(ge)電(dian)(dian)(dian)子系(xi)(xi)(xi)(xi)(xi)(xi)統(tong)(tong)(tong)(tong)的全面穩定(ding)(ding)性和可靠性。