2)充(chong)電(dian)時(shi)間長(chang)達(da)6-8個小時(shi)，是比較科學的(de)。也就是說，實際上電(dian)動汽車充(chong)電(dian)的(de)便捷性(xing)是大家(jia)不能接受(shou)的(de)。一是用家(jia)里220V交流(liu)電(dian)來充(chong)電(dian)，充(chong)電(dian)時(shi)間要(yao)6-8小時(shi)；二是到充(chong)電(dian)站(zhan)用直流(liu)充(chong)電(dian)，除了排(pai)隊外，充(chong)電(dian)過程(cheng)要(yao)的(de)時(shi)間也必須要(yao)在30分鐘(zhong)以上；三是買換(huan)電(dian)池(chi)的(de)車吧(ba)，基本上沒有(you)賣的(de)。

二、提高充電(dian)方便性基本途徑
1)如果(guo)(guo)能用民用交(jiao)流電(dian)充(chong)電(dian)，如果(guo)(guo)充(chong)電(dian)時間少于要3小(xiao)時能接(jie)受；
2)如果到充(chong)(chong)電(dian)站用直流充(chong)(chong)電(dian)，充(chong)(chong)電(dian)時(shi)間(jian)少(shao)于(yu)1個小時(shi)能接受；
3)如果換電池，必須電池是自己專用，是可以接受。
三、鋰離子(zi)動(dong)力(li)電池組的充電模式
下面(mian)是充電(dian)曲(qu)線，即充電(dian)模式采用“限流、限壓”兩(liang)階段充電(dian)模式。
1)限(xian)流過程：
這一階段的(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)叫“限(xian)流(liu)(liu)”充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)，充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)保(bao)持在限(xian)流(liu)(liu)值(zhi)。隨著充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)延續，電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)(dian)(dian)(dian)動勢(shi)不(bu)(bu)斷上升(sheng)，電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的(de)(de)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)壓也不(bu)(bu)斷上升(sheng)。當電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)(dian)(dian)(dian)壓上升(sheng)到允許的(de)(de)最(zui)高(gao)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)壓時，保(bao)持恒(heng)壓充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)。廠家建議：一般采用最(zui)佳充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)倍率(lv)(鋰離子電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)為0.3CA)進行(xing)限(xian)流(liu)(liu)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)。
2)限壓過程(cheng)：
在這(zhe)一(yi)階(jie)段(duan)，由于電(dian)(dian)池(chi)電(dian)(dian)動勢(shi)還在不斷(duan)上(shang)升，而充(chong)(chong)電(dian)(dian)電(dian)(dian)壓又(you)保持(chi)不變，所以電(dian)(dian)池(chi)的(de)充(chong)(chong)電(dian)(dian)流(liu)呈(cheng)雙曲(qu)線趨勢(shi)不斷(duan)下(xia)降(jiang)(jiang)，一(yi)直下(xia)降(jiang)(jiang)到零。這(zhe)一(yi)階(jie)段(duan)的(de)充(chong)(chong)電(dian)(dian)叫恒“恒壓”充(chong)(chong)電(dian)(dian)，這(zhe)一(yi)階(jie)段(duan)的(de)充(chong)(chong)電(dian)(dian)電(dian)(dian)壓：U=E+IR=恒壓值。
(實際做法：當充(chong)電(dian)電(dian)流減小到0.015CA時就可停止充(chong)電(dian)。)
三、對(dui)離(li)子動力電池組充(chong)電，實(shi)際是一(yi)個動態的(de)過(guo)程(cheng)
充電系(xi)統必須具(ju)有自動調(diao)節充電參(can)數、自動控制和自動保護功(gong)能：
1)自動調節充(chong)電(dian)參(can)數
a)例(li)如，在充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)時，尤其(qi)在恒壓(ya)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)階段，如果電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)組中(zhong)有(you)某一(yi)個單體(ti)電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的(de)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)超過允許的(de)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(根據不(bu)同鋰電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的(de)特性一(yi)般設(she)定為3.9V～4.3V之間(jian))時，充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)系統應會根據電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)管(guan)理系統(BMS)輸(shu)出的(de)信號(hao)，自(zi)動減(jian)小充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)和電(dian)(dian)(dian)(dian)(dian)(dian)流，使(shi)該電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的(de)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)不(bu)超過允許的(de)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)，防(fang)止(zhi)該電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)過壓(ya)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)。
b)再如，在(zai)充(chong)電(dian)(dian)(dian)開始(shi)時，經電(dian)(dian)(dian)池管(guan)理系統(tong)(BMS)監測(ce)到有某(mou)一個單體(ti)電(dian)(dian)(dian)池的電(dian)(dian)(dian)壓過低，充(chong)電(dian)(dian)(dian)系統(tong)應能(neng)自動改(gai)小初始(shi)充(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流，待電(dian)(dian)(dian)池的電(dian)(dian)(dian)壓正常后，再轉(zhuan)入(ru)正常充(chong)電(dian)(dian)(dian)。
所以，在(zai)充電過(guo)程中，充電系統必須能根據(ju)電池組的狀態、電池管(guan)理系統(BMS)輸出的信息(xi)和(he)整(zheng)車監控輸出的信息(xi)，自(zi)動(dong)調節(jie)充電參(can)數(shu)和(he)自(zi)動(dong)控制充電。
2)自動控制和自動保護功能
在充電(dian)(dian)過程中，電(dian)(dian)池組(zu)和電(dian)(dian)動車發生任何不正常情況時，如電(dian)(dian)池組(zu)短路、斷(duan)路、高溫、起(qi)火(huo)和有電(dian)(dian)池損壞時，充電(dian)(dian)系(xi)統應(ying)能迅速切斷(duan)電(dian)(dian)源，停(ting)止充電(dian)(dian)。
3)與整車CAN總線通信
在充電過程中(zhong)，充電系統(tong)的(de)信息可與整車CAN總線通信。

上海施能電器設備有限公司始建于(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。