通常情況下,新能源汽車保養項(xiang)目分(fen)別(bie)為制(zhi)動系(xi)(xi)統、空(kong)調(diao)系(xi)(xi)統、充電系(xi)(xi)統、底盤(pan)部分(fen)檢查(cha)(cha)(cha)、車身部分(fen)檢查(cha)(cha)(cha)、動力電池系(xi)(xi)統檢查(cha)(cha)(cha)、冷卻系(xi)(xi)統檢查(cha)(cha)(cha)、轉(zhuan)向系(xi)(xi)統檢查(cha)(cha)(cha)、附加項(xiang)目等9個大項(xiang)目,共計近(jin)50項(xiang)小項(xiang)。
這個環節(jie)主要是(shi)檢(jian)查高壓線(xian)(xian)束(shu)的(de)(de)導電性和絕緣(yuan)性。像(xiang)傳(chuan)統汽(qi)車(che)的(de)(de)燃油系統一樣,高壓線(xian)(xian)束(shu)的(de)(de)好(hao)壞(huai)直(zhi)接(jie)決(jue)定(ding)著這臺車(che)能不能開和安全與(yu)否的(de)(de)問(wen)題。檢(jian)測的(de)(de)儀器是(shi)萬用表,檢(jian)測過程是(shi)將(jiang)連接(jie)動(dong)力電池的(de)(de)線(xian)(xian)束(shu)與(yu)電源控(kong)制器分離,然后用探針逐個測試(shi),如在規定(ding)數值內(nei)則判定(ding)為合格。值得(de)注意的(de)(de)是(shi),大多(duo)數汽(qi)車(che)廠家對(dui)高壓線(xian)(xian)束(shu)保修時間(jian)為5年。
大家在購買電(dian)動汽車(che)時,都會關心電(dian)池(chi)的(de)(de)壽(shou)命,國(guo)內(nei)汽車(che)廠商的(de)(de)電(dian)動汽車(che),多采用(yong)磷酸鐵鋰電(dian)池(chi),它比普通手機中使用(yong)的(de)(de)鋰離子電(dian)池(chi)壽(shou)命更長、充(chong)放電(dian)更快、安全性更高(gao)。通常(chang),磷酸鐵鋰電(dian)池(chi)可(ke)滿充(chong)滿放電(dian)2000次以上,按照一年充(chong)200次計算,電(dian)池(chi)可(ke)以有將近10年的(de)(de)使用(yong)壽(shou)命。
動力電(dian)(dian)(dian)池(chi)檢測(ce)是(shi)通過一(yi)臺(tai)檢測(ce)電(dian)(dian)(dian)腦和(he)數(shu)據連接(jie)器實現(xian)的,檢測(ce)過程需要(yao)拆下新能(neng)源汽車的儀表盤下擋(dang)板(ban)。鏈(lian)接(jie)電(dian)(dian)(dian)腦后,就可(ke)以使用電(dian)(dian)(dian)池(chi)檢測(ce)軟件(jian)輕松(song)看到各類電(dian)(dian)(dian)池(chi)信息,包括電(dian)(dian)(dian)池(chi)成組的情況、電(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)壓、電(dian)(dian)(dian)量(liang)、電(dian)(dian)(dian)池(chi)溫度、CAN總線(xian)通訊狀態等。一(yi)旦有個(ge)(ge)別(bie)電(dian)(dian)(dian)池(chi)單體(ti)出現(xian)問題,就會影響整個(ge)(ge)動力電(dian)(dian)(dian)池(chi)的工作狀態。
一次保(bao)養的時間(jian)大概在(zai)45分(fen)鐘左(zuo)右。隨著使用的時間(jian),由(you)于功(gong)能(neng)性組件的性能(neng)磨損、老(lao)化、腐蝕(shi)等原(yuan)因,可能(neng)致使行車安全性能(neng)逐漸降低,定(ding)期按照規(gui)定(ding)進行保(bao)養,才能(neng)保(bao)障(zhang)新(xin)能(neng)源汽(qi)車的安全行駛。
1、充電時間
每個(ge)車(che)主對車(che)的(de)使用情況(kuang)各不(bu)同的(de),因此,充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)要(yao)根據自己(ji)的(de)實際情況(kuang)進(jin)行,供選擇(ze)(ze)的(de)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)模式有快充(chong)(chong)(chong)(chong)(chong)、慢充(chong)(chong)(chong)(chong)(chong)。沒(mei)必要(yao)過(guo)(guo)于相(xiang)信別人經驗之(zhi)談,要(yao)充(chong)(chong)(chong)(chong)(chong)幾小時才行,或充(chong)(chong)(chong)(chong)(chong)滿(man)后(hou)在過(guo)(guo)充(chong)(chong)(chong)(chong)(chong)1小時,這(zhe)都(dou)不(bu)科學,電(dian)(dian)池在出(chu)廠前都(dou)進(jin)行過(guo)(guo)擴容,電(dian)(dian)池管理系(xi)統顯示以充(chong)(chong)(chong)(chong)(chong)滿(man)就(jiu)真的(de)充(chong)(chong)(chong)(chong)(chong)滿(man)了,過(guo)(guo)充(chong)(chong)(chong)(chong)(chong)會帶來很多隱形的(de)危(wei)害(hai)。還有就(jiu)是(shi)盡(jin)量不(bu)要(yao)選擇(ze)(ze)快充(chong)(chong)(chong)(chong)(chong),除非你應急(ji)時,選擇(ze)(ze)快充(chong)(chong)(chong)(chong)(chong),快充(chong)(chong)(chong)(chong)(chong)對電(dian)(dian)池的(de)危(wei)害(hai)就(jiu)不(bu)贅述(shu)了。
切記不要過(guo)度充電(dian)、過(guo)度放(fang)電(dian),盡(jin)量使用交流充電(dian)(慢充)。
2、充電頻次
關(guan)于充(chong)(chong)電(dian)(dian)頻次(ci)這(zhe)個問題,也(ye)要根據自己的(de)(de)行(xing)駛(shi)(shi)來進行(xing)判(pan)斷。在(zai)正(zheng)常(chang)行(xing)駛(shi)(shi)的(de)(de)情況下,如果電(dian)(dian)池管理(li)系統(tong)的(de)(de)提示該充(chong)(chong)電(dian)(dian)了(le)(le),就(jiu)真的(de)(de)該當充(chong)(chong)電(dian)(dian)了(le)(le);千萬(wan)不(bu)要硬(ying)抗,應(ying)盡(jin)快停止(zhi)運行(xing)充(chong)(chong)電(dian)(dian),否則電(dian)(dian)池會因為過(guo)度放電(dian)(dian)而縮短壽命。有(you)些(xie)人習慣每次(ci)出門前都充(chong)(chong)電(dian)(dian),有(you)時只運行(xing)了(le)(le)很短的(de)(de)時間(jian)就(jiu)續充(chong)(chong),這(zhe)個時候充(chong)(chong)電(dian)(dian)時間(jian)不(bu)宜(yi)過(guo)長(chang),否則就(jiu)會過(guo)度充(chong)(chong)電(dian)(dian)從而使電(dian)(dian)池發熱。
可以發現,純電動汽車對(dui)散熱(re)系(xi)統(tong)的要求還是(shi)很高的,常規保(bao)養項(xiang)目雖然少,周(zhou)期(qi)長,省錢省心,只是(shi)用電腦過一(yi)遍各(ge)項(xiang)參(can)數就差不(bu)多了,但該(gai)有的定(ding)期(qi)檢查(cha)必須得去(qu),而且很重要。對(dui)燃(ran)油(you)(you)車來(lai)說(shuo),保(bao)養不(bu)到位頂多是(shi)車子(zi)磨損(sun)厲害一(yi)點,油(you)(you)耗高一(yi)點,而對(dui)電動車來(lai)說(shuo),檢查(cha)不(bu)到位,一(yi)旦出現動力(li)系(xi)統(tong)故障(特別(bie)是(shi)電池),就一(yi)定(ding)不(bu)是(shi)小事情。
每位車(che)(che)主在購車(che)(che)時都會(hui)得到一本車(che)(che)主手冊,里面會(hui)附有一張(zhang)保(bao)養周(zhou)期(qi)表,明確告知車(che)(che)主在什么時候進(jin)行保(bao)養、該如何維護保(bao)養。不同(tong)車(che)(che)系和(he)品牌(pai)的(de)新能源車(che)(che)型,其(qi)保(bao)養周(zhou)期(qi)是不同(tong)的(de),最短的(de)1個(ge)月/3000公里就要做首(shou)保(bao),而大部分(fen)車(che)(che)型則是1萬公里或1年才需(xu)要首(shou)次保(bao)養。所以,按照保(bao)養手冊來進(jin)行保(bao)養就好了(le)。
需要提醒的是,也要根據車輛的具體使用環境(jing)來確定保(bao)養里程(cheng),比如說你經(jing)(jing)常跑山(shan)路(lu),或(huo)者經(jing)(jing)常在高速上行(xing)駛等等情況要自行(xing)縮短保(bao)養里程(cheng)。
1、避免大電流放電
電動車在起(qi)步、載人、上(shang)坡(po)時,盡量避免猛踩加(jia)速,形成(cheng)瞬間大電流放電。大電流放電容易導(dao)致產(chan)生硫(liu)酸鉛結晶,從而損害(hai)電池極板的(de)物理性能(neng)。
2、嚴禁存放時虧電
所謂的虧電(dian)狀(zhuang)態(tai),即(ji)是(shi)電(dian)池使(shi)用后沒(mei)有及時充電(dian),虧電(dian)狀(zhuang)態(tai)下容易引起(qi)電(dian)池硫酸鹽(yan)化,堵塞電(dian)離(li)子通(tong)道(dao),造成充電(dian)不足,電(dian)池容量下降(jiang)。
正確的做法是電(dian)池(chi)(chi)閑(xian)置不(bu)用(yong)時(shi),應每月充(chong)(chong)電(dian)一次,讓電(dian)池(chi)(chi)保持健康的狀(zhuang)態。不(bu)過得(de)益于電(dian)池(chi)(chi)現代化的BMS電(dian)池(chi)(chi)管理系統,即使充(chong)(chong)電(dian)時(shi)間稍長也不(bu)會對車輛造成影響哦。
3、正確掌握充電時間
在使用(yong)過(guo)程中(zhong),應根據實(shi)際(ji)情況準確把(ba)握充(chong)電(dian)時間,參考(kao)平時使用(yong)頻(pin)(pin)率及(ji)行駛(shi)里程情況,把(ba)握充(chong)電(dian)頻(pin)(pin)次。正常行駛(shi)時,如果(guo)電(dian)量表指示紅燈和黃燈亮(liang),就應充(chong)電(dian)了;如只(zhi)剩下紅燈亮(liang),應停止運行,盡快(kuai)充(chong)電(dian),否則電(dian)瓶過(guo)度放電(dian)會嚴(yan)重(zhong)縮短其壽命(ming)。
充(chong)(chong)滿電(dian)(dian)后運行時間(jian)較短(duan)就充(chong)(chong)電(dian)(dian),充(chong)(chong)電(dian)(dian)時間(jian)不(bu)宜過長,否則會形成過度(du)充(chong)(chong)電(dian)(dian),使(shi)電(dian)(dian)瓶發熱。過度(du)充(chong)(chong)電(dian)(dian)、過度(du)放(fang)電(dian)(dian)和充(chong)(chong)電(dian)(dian)不(bu)足都會縮短(duan)電(dian)(dian)瓶壽命。
一(yi)般情況蓄電池平均(jun)充(chong)電時間在10小(xiao)時左右。充(chong)電過程如電瓶溫度超過65℃,應(ying)停止充(chong)電。
4、經常檢查輪胎氣壓
將輪胎(tai)(tai)氣(qi)壓保(bao)持在正確(que)的(de)胎(tai)(tai)壓,必須每兩星期或至少每月檢(jian)查(cha)一次輪胎(tai)(tai)氣(qi)壓。不正確(que)的(de)輪胎(tai)(tai)氣(qi)壓會造成耗(hao)電、行駛(shi)(shi)里程短,降低駕駛(shi)(shi)的(de)舒適性(xing),降低輪胎(tai)(tai)壽命并(bing)降低行車(che)安全性(xing)。
6、防止暴曬
電(dian)動車嚴(yan)禁(jin)在陽(yang)光(guang)下暴曬。溫度過高的環境會使蓄電(dian)池內部壓力增加(jia)而使電(dian)池失水(shui),引(yin)發電(dian)池活性(xing)下降,加(jia)速極(ji)板老化。
7、定期檢查
在使用過程中,如果電動汽車的(de)續航里程(cheng)在短時間內(nei)突然大幅(fu)度下(xia)降(jiang)十幾公里,則很有(you)可能(neng)是電(dian)(dian)(dian)池組中最(zui)少有(you)一塊電(dian)(dian)(dian)池出現問題。此時,應及時到銷售(shou)中心或代理商維(wei)修部進(jin)行檢查、修復或配組。這樣(yang)能(neng)相對(dui)延長電(dian)(dian)(dian)池組的(de)壽命,最(zui)大程(cheng)度地(di)節省(sheng)您(nin)的(de)開支。