混合動力(li)汽車(che)有哪些 混合動力(li)汽車(che)優缺點
當(dang)純電動汽車還在(zai)舉(ju)步維艱時,混合動(dong)力汽車已經大搖大擺地進入了各(ge)大4S店,并且(qie)成(cheng)為(wei)不(bu)少消費(fei)者購車(che)時的重要考量。究其原因(yin),一方面是用(yong)車(che)習慣與傳統(tong)汽油車(che)相差無幾,而且(qie)能(neng)夠(gou)在日常用(yong)車(che)中節省不(bu)少燃(ran)油另一方面,不(bu)少車(che)企為(wei)了占(zhan)領市場,對混合動力(li)車(che)型(xing)提供(gong)了保養或(huo)價格方面的優惠(hui)。但(dan)是同為(wei)混合動力(li)車(che)型(xing),工作原理卻相差巨大(da)(da),現在就為(wei)大(da)(da)家(jia)簡(jian)要介紹混合動力(li)車(che)型(xing)的結構模式,讓大(da)(da)家(jia)能(neng)夠(gou)根據其結構特(te)點,選擇性能(neng)更佳、使用(yong)更方便的車(che)型(xing)。
通常,我們把混(hun)(hun)(hun)(hun)合(he)動(dong)(dong)力分為(wei)普通混(hun)(hun)(hun)(hun)合(he)動(dong)(dong)力、插電式混(hun)(hun)(hun)(hun)合(he)動(dong)(dong)力以(yi)及(ji)(ji)增(zeng)程式混(hun)(hun)(hun)(hun)合(he)動(dong)(dong)力三(san)種(zhong)。其(qi)(qi)實(shi),混(hun)(hun)(hun)(hun)合(he)動(dong)(dong)力的結構(gou)(gou)形式也能分為(wei)三(san)種(zhong),分別是串(chuan)聯(lian)結構(gou)(gou)、并聯(lian)結構(gou)(gou)以(yi)及(ji)(ji)混(hun)(hun)(hun)(hun)聯(lian)結構(gou)(gou)。其(qi)(qi)中增(zeng)程式混(hun)(hun)(hun)(hun)合(he)動(dong)(dong)力只能是串(chuan)聯(lian)結構(gou)(gou),而并聯(lian)結構(gou)(gou)和混(hun)(hun)(hun)(hun)聯(lian)結構(gou)(gou)既可(ke)以(yi)應用于普通混(hun)(hun)(hun)(hun)合(he)動(dong)(dong)力,也可(ke)以(yi)應用于插電式混(hun)(hun)(hun)(hun)合(he)動(dong)(dong)力。
串聯結構特點:結構簡單、使用方便
代表車型:雪佛蘭沃藍達、寶馬i3增程式混合動力車型、傳祺GA5增程式混合動力車型
串(chuan)聯(lian)(lian)(lian)結(jie)構(gou),顧(gu)名(ming)思義就是發動(dong)(dong)機(ji)(ji)(ji)(ji)(ji)和電(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)(ji)“串(chuan)”在(zai)(zai)一條(tiao)動(dong)(dong)力傳輸(shu)路徑上。串(chuan)聯(lian)(lian)(lian)結(jie)構(gou)最大的特點就是發動(dong)(dong)機(ji)(ji)(ji)(ji)(ji)在(zai)(zai)任(ren)何情況下都不(bu)參與驅動(dong)(dong)汽車(che)的工作,它只能(neng)通(tong)過帶(dai)動(dong)(dong)發電(dian)(dian)機(ji)(ji)(ji)(ji)(ji)為電(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)(ji)提供電(dian)(dian)能(neng)。串(chuan)聯(lian)(lian)(lian)結(jie)構(gou)的動(dong)(dong)力來源于電(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)(ji),發動(dong)(dong)機(ji)(ji)(ji)(ji)(ji)只能(neng)驅動(dong)(dong)發電(dian)(dian)機(ji)(ji)(ji)(ji)(ji)發電(dian)(dian),并(bing)不(bu)能(neng)直接驅動(dong)(dong)車(che)輛行駛。因此,串(chuan)聯(lian)(lian)(lian)結(jie)構(gou)中電(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)(ji)功率一般(ban)要大于發動(dong)(dong)機(ji)(ji)(ji)(ji)(ji)功率。
串聯是混合動力中結構最簡單的,整體結構相當于純電動汽車加個汽油發電機,由于取消了普通汽車的變速箱,所以結構布置也更加靈活。同時,發動機總是工作在高效轉區,因此在中低速行駛時,串聯結構的混合動力汽車比普通汽車油耗更低,大約可以節油30%左右(you)。同(tong)時,由于(yu)串聯結構的駕駛模式只有電動(dong)模式,用戶使用起來非(fei)常方便。
但是串聯結構混合動力車型的發動機動能需要經過二次轉換才能為電動機供電,會造成較大的能量損失,使得高速行駛時油耗偏高,以雪佛蘭沃藍達為例,普通的1.4升(sheng)汽油車(che)型高速巡(xun)航(hang)時百公里油耗在6升左右,但沃藍達(da)卻(que)達(da)到了6.4升(sheng)。
目前,主流的串聯結構混動車型有:雪佛蘭沃藍達、寶馬i3增(zeng)程式混合動(dong)力(li)車型、傳祺GA5增程式混(hun)合動力車型,前兩款售價高達50萬元,傳祺GA5是目(mu)前自(zi)主(zhu)品(pin)牌中僅有(you)的(de)串聯結構(gou)混(hun)動(dong)車型,能夠享受國家和地方的(de)優惠補貼。
并聯結構特點:模式多樣、動力強勁
代表車型:目前市面上大多數混動車型都為該結構
并聯結構就是在普通汽車的基礎上加裝一套電能驅動系統(電動(dong)機和動(dong)力電池),發動(dong)(dong)機(ji)(ji)和電(dian)(dian)動(dong)(dong)機(ji)(ji)都能單獨驅動(dong)(dong)車輪(lun),也可以同時工作,共(gong)同驅動(dong)(dong)車輛行駛。當動(dong)(dong)力電(dian)(dian)池電(dian)(dian)量不足時,發動(dong)(dong)機(ji)(ji)還能帶動(dong)(dong)電(dian)(dian)動(dong)(dong)機(ji)(ji)反(fan)轉為動(dong)(dong)力電(dian)(dian)池充電(dian)(dian)。
并聯結構的(de)混動(dong)(dong)車型(xing)一般有(you)三種模(mo)式(shi)可(ke)以選擇:純電(dian)(dian)(dian)模(mo)式(shi),發(fa)(fa)動(dong)(dong)機(ji)關閉,電(dian)(dian)(dian)池為電(dian)(dian)(dian)動(dong)(dong)機(ji)供電(dian)(dian)(dian),驅(qu)動(dong)(dong)車輛(liang)行駛,該模(mo)式(shi)多用于中低速行駛,也(ye)有(you)部(bu)分車型(xing)可(ke)以實(shi)現高速巡航純油模(mo)式(shi),發(fa)(fa)動(dong)(dong)機(ji)啟(qi)動(dong)(dong),驅(qu)動(dong)(dong)車輛(liang)行駛,同時能夠帶(dai)動(dong)(dong)電(dian)(dian)(dian)動(dong)(dong)機(ji)反轉為動(dong)(dong)力電(dian)(dian)(dian)池充(chong)電(dian)(dian)(dian)混合模(mo)式(shi),發(fa)(fa)動(dong)(dong)機(ji)和(he)電(dian)(dian)(dian)動(dong)(dong)機(ji)同時啟(qi)動(dong)(dong),驅(qu)動(dong)(dong)車輛(liang)行駛,該模(mo)式(shi)多用于爬坡、急加速以及其他(ta)高負荷工作的(de)情(qing)況下。
與串聯結構不同的是,并聯結構中發動機和電動機可以同時驅動汽車,動力性能更加優越。以比亞迪秦為例,它的1.5T發(fa)動機和電動機功(gong)率相加后足有(you)300馬力,但(dan)秦僅是(shi)一臺自主品牌的緊湊(cou)型車而已。其次(ci),并聯結構的混動車型驅動模式較(jiao)多,可以適應多種工況,發動機(ji)能夠(gou)在(zai)中高速運行(xing)時單獨驅動汽車,無需進行(xing)能源的二次(ci)轉換,因此綜合油耗更低。
不過,并(bing)聯結構(gou)(gou)的(de)(de)最顯著缺點(dian)就是,由于只有一(yi)臺電(dian)(dian)動(dong)機(ji),沒有獨(du)立的(de)(de)發(fa)電(dian)(dian)機(ji),無(wu)法實現混合模式下,發(fa)動(dong)機(ji)為動(dong)力電(dian)(dian)池充電(dian)(dian)的(de)(de)功能(neng),當電(dian)(dian)量耗盡時,只能(neng)依靠(kao)發(fa)動(dong)機(ji)驅動(dong)。與(yu)此同(tong)時,并(bing)聯結構(gou)(gou)更加(jia)復雜(za),制造成本(ben)也會相對高一(yi)些。目前(qian),市面上賣的(de)(de)混動(dong)車型(xing),絕大(da)(da)部(bu)分采用(yong)的(de)(de)是并(bing)聯結構(gou)(gou),尤其是受(shou)跑(pao)車廠商喜愛(ai),電(dian)(dian)動(dong)機(ji)和發(fa)動(dong)機(ji)互補,在節油的(de)(de)同(tong)時能(neng)夠極大(da)(da)地(di)提高加(jia)速性(xing)能(neng)。
混聯結構特點:技術先進、壟斷嚴重
代表車型:豐田普銳斯
在并聯的基礎上加一個發電機就是混聯了,但它不使用傳統的變速箱,而是用一種叫做“ECVT”的行星齒輪結(jie)構的耦合單元(yuan)來代(dai)替。這(zhe)種技術(shu)一(yi)直被豐田(tian)壟斷,也有(you)一(yi)些廠家在混聯結(jie)構中使用普通的變(bian)速(su)(su)箱(xiang),如雙離合變(bian)速(su)(su)箱(xiang)、無級變(bian)速(su)(su)箱(xiang)等,但是效果遠不及這(zhe)種叫做“ECVT”的變速結構。
混(hun)聯結(jie)構(gou)(gou)在發(fa)(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)和電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)協同(tong)驅(qu)(qu)動(dong)(dong)(dong)車輛行駛的(de)同(tong)時(shi),發(fa)(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)還能帶(dai)動(dong)(dong)(dong)發(fa)(fa)(fa)電(dian)(dian)(dian)機(ji)(ji)為(wei)動(dong)(dong)(dong)力電(dian)(dian)(dian)池充電(dian)(dian)(dian),不再像并(bing)聯結(jie)構(gou)(gou)中單(dan)一電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)需要(yao)身(shen)兼兩(liang)職(zhi),并(bing)且(qie)理論上它能夠實現發(fa)(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)帶(dai)動(dong)(dong)(dong)發(fa)(fa)(fa)電(dian)(dian)(dian)機(ji)(ji)發(fa)(fa)(fa)電(dian)(dian)(dian),電(dian)(dian)(dian)動(dong)(dong)(dong)機(ji)(ji)驅(qu)(qu)動(dong)(dong)(dong)車輛的(de)模式(shi)。因此,混(hun)聯結(jie)構(gou)(gou)的(de)驅(qu)(qu)動(dong)(dong)(dong)模式(shi)有,純電(dian)(dian)(dian)模式(shi)、純油模式(shi)、混(hun)合模式(shi)、充電(dian)(dian)(dian)模式(shi)四種。
混聯的結構優點和使用優點更加接近于并聯結構車型,但混聯的驅動模式更加豐富,在并聯的混合驅動模式基礎上,加入了充電功能,這意味著發動機和電動機全力驅動車輛時也不用擔心電量消耗的問題。并且得益于“ECVT”的(de)(de)加入,使電動機(ji)和發動機(ji)的(de)(de)配合更加默契,能夠(gou)適應(ying)的(de)(de)工況更多,節油(you)效果更加出色。
不過由于混聯結構更加復雜,相應車型的價格也更高,而且由于“ECVT”存在技術(shu)壟斷,其他廠家(jia)無法選擇,但是隨著(zhu)豐田專利的(de)到(dao)期(qi),相信未來將會有更多的(de)混聯車型推出。