2)充電(dian)時間(jian)(jian)長達(da)6-8個小時，是比較科(ke)學的。也(ye)(ye)就是說，實(shi)際上(shang)電(dian)動汽(qi)車充電(dian)的便捷(jie)性是大(da)家不能接受的。一(yi)是用家里220V交流電(dian)來充電(dian)，充電(dian)時間(jian)(jian)要(yao)6-8小時；二是到(dao)充電(dian)站用直(zhi)流充電(dian)，除了排隊外，充電(dian)過程要(yao)的時間(jian)(jian)也(ye)(ye)必須要(yao)在(zai)30分鐘(zhong)以上(shang)；三是買換電(dian)池的車吧，基本上(shang)沒有賣的。

二、提高充電方便(bian)性(xing)基本途徑(jing)
1)如果能用(yong)民用(yong)交流電(dian)(dian)充電(dian)(dian)，如果充電(dian)(dian)時間少于(yu)要3小時能接受；
2)如(ru)果(guo)到(dao)充(chong)電站(zhan)用直(zhi)流充(chong)電，充(chong)電時間少于1個小(xiao)時能接受；
3)如果換(huan)電池，必須電池是自(zi)己專用，是可以接受。
三(san)、鋰離子動力電池組的充電模式
下面是(shi)充(chong)電曲線，即充(chong)電模式采用“限流、限壓”兩階段充(chong)電模式。
1)限流(liu)過(guo)程(cheng)：
這一(yi)階段的(de)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)叫“限流(liu)”充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)，充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)流(liu)保(bao)持在限流(liu)值。隨著充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)的(de)延續，電(dian)(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)(dian)動勢不斷(duan)上(shang)(shang)升(sheng)，電(dian)(dian)(dian)(dian)池(chi)(chi)的(de)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)壓也(ye)不斷(duan)上(shang)(shang)升(sheng)。當電(dian)(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)(dian)壓上(shang)(shang)升(sheng)到允許的(de)最(zui)高(gao)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓時，保(bao)持恒壓充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)。廠家建(jian)議：一(yi)般采(cai)用最(zui)佳充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)倍率(鋰離子電(dian)(dian)(dian)(dian)池(chi)(chi)為0.3CA)進(jin)行(xing)限流(liu)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)。
2)限壓(ya)過(guo)程：
在這一階段(duan)，由(you)于電(dian)(dian)池(chi)電(dian)(dian)動勢還在不(bu)斷上(shang)升，而充(chong)電(dian)(dian)電(dian)(dian)壓(ya)又保持不(bu)變，所以電(dian)(dian)池(chi)的充(chong)電(dian)(dian)流呈雙曲線趨勢不(bu)斷下降，一直(zhi)下降到零(ling)。這一階段(duan)的充(chong)電(dian)(dian)叫(jiao)恒“恒壓(ya)”充(chong)電(dian)(dian)，這一階段(duan)的充(chong)電(dian)(dian)電(dian)(dian)壓(ya)：U=E+IR=恒壓(ya)值。
(實際做法：當充電(dian)電(dian)流(liu)減小到0.015CA時就可停止充電(dian)。)
三、對(dui)離子(zi)動(dong)力(li)電(dian)池組(zu)充電(dian)，實際是一個動(dong)態的過程(cheng)
充(chong)電系統(tong)必須具有自(zi)動調節充(chong)電參數、自(zi)動控制和(he)自(zi)動保護功能：
1)自(zi)動調節充電參(can)數
a)例如，在(zai)充電(dian)(dian)(dian)(dian)時，尤(you)其在(zai)恒(heng)壓(ya)(ya)充電(dian)(dian)(dian)(dian)階段，如果電(dian)(dian)(dian)(dian)池(chi)組中有某(mou)一(yi)(yi)個單(dan)體電(dian)(dian)(dian)(dian)池(chi)的(de)充電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)(ya)超過允許的(de)充電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)(ya)(根據(ju)不同鋰電(dian)(dian)(dian)(dian)池(chi)的(de)特性(xing)一(yi)(yi)般設定為3.9V～4.3V之間)時，充電(dian)(dian)(dian)(dian)系(xi)統應會根據(ju)電(dian)(dian)(dian)(dian)池(chi)管理系(xi)統(BMS)輸出的(de)信號(hao)，自動減小充電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)(ya)和電(dian)(dian)(dian)(dian)流，使該(gai)電(dian)(dian)(dian)(dian)池(chi)的(de)充電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)(ya)不超過允許的(de)充電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)(ya)，防止該(gai)電(dian)(dian)(dian)(dian)池(chi)過壓(ya)(ya)充電(dian)(dian)(dian)(dian)。
b)再如，在充(chong)電(dian)(dian)開始時，經(jing)電(dian)(dian)池管理系統(BMS)監測到有某一個單體電(dian)(dian)池的(de)(de)電(dian)(dian)壓(ya)(ya)過低，充(chong)電(dian)(dian)系統應能(neng)自動(dong)改小(xiao)初始充(chong)電(dian)(dian)電(dian)(dian)流，待電(dian)(dian)池的(de)(de)電(dian)(dian)壓(ya)(ya)正常后(hou)，再轉入正常充(chong)電(dian)(dian)。
所以，在充(chong)電過程(cheng)中，充(chong)電系統必須能根(gen)據電池(chi)組的狀態、電池(chi)管理系統(BMS)輸出(chu)的信(xin)息和整車(che)監控輸出(chu)的信(xin)息，自動(dong)調節充(chong)電參數和自動(dong)控制充(chong)電。
2)自動(dong)控制和自動(dong)保護功(gong)能
在充電(dian)(dian)過(guo)程中(zhong)，電(dian)(dian)池組和(he)電(dian)(dian)動車發生任何(he)不正(zheng)常情(qing)況時，如(ru)電(dian)(dian)池組短路(lu)、斷(duan)路(lu)、高溫、起火和(he)有(you)電(dian)(dian)池損壞(huai)時，充電(dian)(dian)系統應(ying)能迅速切斷(duan)電(dian)(dian)源，停止充電(dian)(dian)。
3)與整車CAN總線通信
在充電(dian)(dian)過程中(zhong)，充電(dian)(dian)系統的信息可與整車CAN總線通信。

上海(hai)施能電器(qi)設備有限公(gong)司(si)始建于(yu)1984年，上海市高新技術企業，中國工業車輛優秀配套供應商，上海電器行業名優產品，主要生產工頻系列充電機，高頻系列充電機，鋰電池充電機，系列放電機，系列充放電機等電器產品。