本技(ji)術(shu)涉(she)及(ji)新能源電池，更具體地，涉(she)及(ji)一種純電輕卡的超級快充控制策略及(ji)裝置。

背景技術：

1、新能(neng)源(yuan)(yuan)企業補能(neng)效(xiao)(xiao)率一(yi)(yi)(yi)(yi)直是制約其替代燃油車(che)的重要瓶(ping)頸，為此不同技(ji)(ji)術(shu)路(lu)線(xian)均有落地，如換電(dian)(dian)技(ji)(ji)術(shu)路(lu)線(xian)，可以實現(xian)3min補滿電(dian)(dian)，接近燃油車(che)補能(neng)效(xiao)(xiao)率。另(ling)外一(yi)(yi)(yi)(yi)條(tiao)就是超級快充策略，針對現(xian)有技(ji)(ji)術(shu)，固態電(dian)(dian)池(chi)(chi)產(chan)業化仍存在(zai)(zai)一(yi)(yi)(yi)(yi)些問題(ti)，新能(neng)源(yuan)(yuan)汽(qi)車(che)動力電(dian)(dian)池(chi)(chi)仍然以液(ye)態電(dian)(dian)解液(ye)為主，能(neng)量型電(dian)(dian)池(chi)(chi)本身允(yun)許(xu)快充能(neng)力有限(xian)，以新能(neng)源(yuan)(yuan)商用車(che)為例(li)，在(zai)(zai)電(dian)(dian)池(chi)(chi)無液(ye)冷情況下(xia)，快充倍率一(yi)(yi)(yi)(yi)般(ban)設計(ji)在(zai)(zai)0.8c，有液(ye)冷設計(ji)在(zai)(zai)1c。

2、隨(sui)著技(ji)術(shu)迭代進步(bu)，超(chao)級快(kuai)充(chong)(chong)電(dian)(dian)(dian)池(chi)技(ji)術(shu)有較(jiao)好的(de)(de)市場前景，最(zui)大優勢為(wei)提升了新能(neng)源純電(dian)(dian)(dian)輕(qing)卡快(kuai)充(chong)(chong)的(de)(de)補能(neng)效率。現有技(ji)術(shu)中(zhong)，以純電(dian)(dian)(dian)輕(qing)卡某車型為(wei)例，設(she)計最(zui)大充(chong)(chong)電(dian)(dian)(dian)倍率1c（1h充(chong)(chong)電(dian)(dian)(dian)倍率，如(ru)某款電(dian)(dian)(dian)池(chi)200ah，1c對(dui)應電(dian)(dian)(dian)流(liu)(liu)(liu)為(wei)200a，0.5c對(dui)應電(dian)(dian)(dian)流(liu)(liu)(liu)為(wei)100a），充(chong)(chong)電(dian)(dian)(dian)設(she)置(zhi)分步(bu)恒流(liu)(liu)(liu)的(de)(de)充(chong)(chong)電(dian)(dian)(dian)方(fang)式，一(yi)般(ban)分為(wei)4步(bu)恒流(liu)(liu)(liu)階段(duan)，并(bing)同時(shi)受電(dian)(dian)(dian)池(chi)最(zui)高溫(wen)度tmax限制，這(zhe)兩者計算的(de)(de)充(chong)(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)(liu)(liu)值(zhi)(zhi)實時(shi)對(dui)比，取小(xiao)值(zhi)(zhi)作(zuo)為(wei)發(fa)給充(chong)(chong)電(dian)(dian)(dian)樁的(de)(de)請求(qiu)電(dian)(dian)(dian)流(liu)(liu)(liu)值(zhi)(zhi)，給電(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)。

3、另外，由于電(dian)池極(ji)化跟電(dian)解液(ye)的導電(dian)率有關(guan)，極(ji)化嚴重時(shi)，電(dian)池最高電(dian)壓vmax會(hui)短(duan)時(shi)增大(da)而后持續回落，溫度低(di)時(shi)極(ji)化現象會(hui)更嚴重。

4、現有技術的(de)超級(ji)(ji)快(kuai)充(chong)(chong)(chong)(chong)充(chong)(chong)(chong)(chong)電(dian)(dian)電(dian)(dian)流設(she)定邏輯為(wei)：當觸發電(dian)(dian)流限制后(hou)，充(chong)(chong)(chong)(chong)電(dian)(dian)電(dian)(dian)流下(xia)調，不允許(xu)往復(fu)判斷，充(chong)(chong)(chong)(chong)電(dian)(dian)電(dian)(dian)流不允許(xu)回(hui)調，即一(yi)旦觸發vmax或(huo)tmax，導致電(dian)(dian)流降(jiang)低，即使后(hou)續(xu)持續(xu)充(chong)(chong)(chong)(chong)電(dian)(dian)過程中，vmax或(huo)tmax恢復(fu)到上一(yi)步水平（即下(xia)降(jiang)），也不會(hui)通過重復(fu)判斷使得充(chong)(chong)(chong)(chong)電(dian)(dian)電(dian)(dian)流值上漲(zhang)。因此(ci)，現有超級(ji)(ji)快(kuai)充(chong)(chong)(chong)(chong)的(de)充(chong)(chong)(chong)(chong)電(dian)(dian)電(dian)(dian)流邏輯中，充(chong)(chong)(chong)(chong)電(dian)(dian)電(dian)(dian)流過度限制，導致無(wu)法發揮(hui)超級(ji)(ji)快(kuai)充(chong)(chong)(chong)(chong)能(neng)力。

技術實現思路

1、本技術提供一種純電(dian)(dian)(dian)(dian)(dian)輕卡的(de)(de)超級快(kuai)(kuai)充(chong)(chong)控制策略及裝置，由電(dian)(dian)(dian)(dian)(dian)池的(de)(de)實時最高溫度和荷電(dian)(dian)(dian)(dian)(dian)狀態確(que)定整(zheng)車(che)的(de)(de)允(yun)許(xu)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)倍率，使得充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流更切(qie)合實際(ji)，并且在第(di)(di)一最高電(dian)(dian)(dian)(dian)(dian)壓大(da)于當(dang)前(qian)的(de)(de)標定最高電(dian)(dian)(dian)(dian)(dian)壓（即觸(chu)發vmax）時，降(jiang)低允(yun)許(xu)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)倍率，并且在實時獲得的(de)(de)第(di)(di)二最高電(dian)(dian)(dian)(dian)(dian)壓降(jiang)低至當(dang)前(qian)的(de)(de)標定最高電(dian)(dian)(dian)(dian)(dian)壓以下，且當(dang)前(qian)的(de)(de)標定最高電(dian)(dian)(dian)(dian)(dian)壓與第(di)(di)二最高電(dian)(dian)(dian)(dian)(dian)壓的(de)(de)第(di)(di)二差(cha)值大(da)于預(yu)設值時，恢復(fu)正常的(de)(de)允(yun)許(xu)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)倍率，避免充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)流被異常降(jiang)低而(er)影響(xiang)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)性能，提高了快(kuai)(kuai)充(chong)(chong)補能效率。

2、本技術提(ti)供(gong)了一種純電輕(qing)卡的超級快充控制策略，包括(kuo)：

3、實時接收電(dian)池(chi)的第一(yi)最(zui)高(gao)(gao)溫度、第一(yi)荷電(dian)狀態以及第一(yi)最(zui)高(gao)(gao)電(dian)壓；

4、實時依據第(di)一(yi)最高溫度(du)和第(di)一(yi)荷(he)電(dian)狀態查詢倍率查詢表，獲得第(di)一(yi)允許充電(dian)倍率以及當前的標定最高電(dian)壓；

5、若第(di)(di)一(yi)最(zui)(zui)高電(dian)(dian)(dian)壓大于當(dang)(dang)前(qian)(qian)(qian)的(de)(de)標定最(zui)(zui)高電(dian)(dian)(dian)壓，則實(shi)時降(jiang)低第(di)(di)一(yi)允許(xu)(xu)充(chong)電(dian)(dian)(dian)倍(bei)(bei)率(lv)，獲得第(di)(di)二(er)(er)允許(xu)(xu)充(chong)電(dian)(dian)(dian)倍(bei)(bei)率(lv)，并實(shi)時將第(di)(di)二(er)(er)允許(xu)(xu)充(chong)電(dian)(dian)(dian)倍(bei)(bei)率(lv)作(zuo)為(wei)電(dian)(dian)(dian)流(liu)請(qing)求(qiu)值(zhi)(zhi)(zhi)發送給(gei)充(chong)電(dian)(dian)(dian)樁進行充(chong)電(dian)(dian)(dian)，直至實(shi)時獲得的(de)(de)第(di)(di)二(er)(er)最(zui)(zui)高電(dian)(dian)(dian)壓降(jiang)低至當(dang)(dang)前(qian)(qian)(qian)的(de)(de)標定最(zui)(zui)高電(dian)(dian)(dian)壓以下(xia)，且當(dang)(dang)前(qian)(qian)(qian)的(de)(de)標定最(zui)(zui)高電(dian)(dian)(dian)壓與(yu)第(di)(di)二(er)(er)最(zui)(zui)高電(dian)(dian)(dian)壓的(de)(de)第(di)(di)二(er)(er)差值(zhi)(zhi)(zhi)大于預設值(zhi)(zhi)(zhi)，此時將第(di)(di)一(yi)允許(xu)(xu)充(chong)電(dian)(dian)(dian)倍(bei)(bei)率(lv)作(zuo)為(wei)電(dian)(dian)(dian)流(liu)請(qing)求(qiu)值(zhi)(zhi)(zhi)發送給(gei)充(chong)電(dian)(dian)(dian)樁進行充(chong)電(dian)(dian)(dian)。

6、優選地，獲得第二允許充電倍(bei)率，具體包括：

7、實時(shi)計算第(di)(di)一(yi)最高電壓(ya)與當(dang)前的標定(ding)最高電壓(ya)的第(di)(di)一(yi)差值；

8、將第一差值(zhi)和預(yu)設(she)下調比例的(de)乘積作(zuo)為下調幅度；

9、依據第一(yi)允(yun)(yun)許充電倍率和下調(diao)幅度獲得第二允(yun)(yun)許充電倍率。

10、優選(xuan)地，若第(di)一(yi)最高電(dian)(dian)(dian)壓(ya)小于等于當(dang)前(qian)的(de)標定最高電(dian)(dian)(dian)壓(ya)，則(ze)持(chi)續將第(di)一(yi)允許充電(dian)(dian)(dian)倍率作為電(dian)(dian)(dian)流請求值發(fa)送給充電(dian)(dian)(dian)樁進行充電(dian)(dian)(dian)，直至(zhi)電(dian)(dian)(dian)池達到下(xia)一(yi)個標定荷電(dian)(dian)(dian)狀(zhuang)態(tai)。

11、優選地(di)，若下一個標定(ding)荷電(dian)狀(zhuang)(zhuang)態對應的(de)(de)第三允許(xu)(xu)(xu)(xu)充(chong)電(dian)倍(bei)率(lv)小于(yu)(yu)上(shang)一個標定(ding)荷電(dian)狀(zhuang)(zhuang)態對應的(de)(de)第四(si)允許(xu)(xu)(xu)(xu)充(chong)電(dian)倍(bei)率(lv)，則在從上(shang)一個標定(ding)荷電(dian)狀(zhuang)(zhuang)態轉到(dao)下一個標定(ding)荷電(dian)狀(zhuang)(zhuang)態的(de)(de)過程(cheng)中(zhong)，基于(yu)(yu)第四(si)允許(xu)(xu)(xu)(xu)充(chong)電(dian)倍(bei)率(lv)和第三允許(xu)(xu)(xu)(xu)充(chong)電(dian)倍(bei)率(lv)，采用(yong)差(cha)分法(fa)計(ji)算實(shi)時獲得的(de)(de)第二荷電(dian)狀(zhuang)(zhuang)態對應的(de)(de)第五(wu)允許(xu)(xu)(xu)(xu)充(chong)電(dian)倍(bei)率(lv)。

12、優選地(di)，若實時(shi)獲得的第(di)二(er)最高溫度大(da)于等于第(di)一(yi)溫度閾(yu)值，則對電池進行(xing)冷卻，同時(shi)在(zai)降(jiang)溫過程中(zhong)降(jiang)低允許充(chong)電倍率(lv)，直至電池的最高溫度降(jiang)低至第(di)二(er)溫度閾(yu)值；

13、其中第(di)二溫(wen)度閾值小于等于第(di)一溫(wen)度閾值。

14、優選地，若(ruo)第一荷(he)電狀(zhuang)態(tai)(tai)位于(yu)倍率(lv)查詢(xun)表中(zhong)兩個(ge)標定荷(he)電狀(zhuang)態(tai)(tai)之間，則(ze)基于(yu)其相(xiang)鄰(lin)的兩個(ge)荷(he)電狀(zhuang)態(tai)(tai)對(dui)應的第七允(yun)許充(chong)電倍率(lv)，采用差分(fen)法計(ji)算第一允(yun)許充(chong)電倍率(lv)；

15、若(ruo)第(di)一最高溫度(du)位于倍率查詢表中兩(liang)個標定(ding)(ding)最高溫度(du)之間，則基于其相鄰的(de)(de)兩(liang)個標定(ding)(ding)最高溫度(du)對應的(de)(de)第(di)八允許充電(dian)倍率，采用(yong)差(cha)分法計算第(di)一允許充電(dian)倍率。

16、優選地，在電(dian)池從第(di)二最(zui)高溫(wen)度降低(di)到第(di)二溫(wen)度閾值的(de)(de)過(guo)程中，保持(chi)第(di)二最(zui)高溫(wen)度對應的(de)(de)第(di)六允(yun)許充(chong)電(dian)倍(bei)率；

17、第六允許充(chong)電(dian)(dian)倍(bei)率(lv)是基于第一(yi)(yi)溫度閾(yu)值和下一(yi)(yi)標定最高(gao)溫度對應的充(chong)電(dian)(dian)倍(bei)率(lv)，采用差分法計(ji)算獲得的。

18、本(ben)技術還(huan)提供(gong)一(yi)種純電輕卡的超級快充控制裝置(zhi)，包括(kuo)接收模(mo)(mo)塊(kuai)、查(cha)詢模(mo)(mo)塊(kuai)、計(ji)算模(mo)(mo)塊(kuai)以及發送模(mo)(mo)塊(kuai)；

19、接(jie)收(shou)(shou)模塊用于實時接(jie)收(shou)(shou)電池的第(di)一(yi)最(zui)高溫度、第(di)一(yi)荷電狀態(tai)以及第(di)一(yi)最(zui)高電壓；

20、查詢模塊用于(yu)實(shi)時依據第一(yi)最高(gao)溫度和第一(yi)荷電狀態查詢倍(bei)率(lv)查詢表，獲得第一(yi)允(yun)許充電倍(bei)率(lv)以及當前的標定最高(gao)電壓；

21、計算(suan)模塊(kuai)用于在第一(yi)最高(gao)電壓大于當前(qian)的標定最高(gao)電壓時，實時獲得第二允許充(chong)電倍(bei)率；

22、發送(song)模塊用于(yu)在(zai)第一(yi)最(zui)高電(dian)(dian)(dian)壓大(da)于(yu)當(dang)前的(de)標(biao)定(ding)最(zui)高電(dian)(dian)(dian)壓時，實時將(jiang)(jiang)第二(er)允許充(chong)(chong)電(dian)(dian)(dian)倍率作為(wei)電(dian)(dian)(dian)流(liu)請(qing)(qing)求(qiu)值(zhi)發送(song)給(gei)充(chong)(chong)電(dian)(dian)(dian)樁進行(xing)(xing)充(chong)(chong)電(dian)(dian)(dian)；在(zai)實時獲得的(de)第二(er)最(zui)高電(dian)(dian)(dian)壓降低至當(dang)前的(de)標(biao)定(ding)最(zui)高電(dian)(dian)(dian)壓以下，且當(dang)前的(de)標(biao)定(ding)最(zui)高電(dian)(dian)(dian)壓與第二(er)最(zui)高電(dian)(dian)(dian)壓的(de)第二(er)差值(zhi)大(da)于(yu)預設(she)值(zhi)時，實時將(jiang)(jiang)第一(yi)允許充(chong)(chong)電(dian)(dian)(dian)倍率作為(wei)電(dian)(dian)(dian)流(liu)請(qing)(qing)求(qiu)值(zhi)發送(song)給(gei)充(chong)(chong)電(dian)(dian)(dian)樁進行(xing)(xing)充(chong)(chong)電(dian)(dian)(dian)。

23、優(you)選地(di)，計算模塊用于在第一(yi)最(zui)高電(dian)壓(ya)大于當前的標定(ding)最(zui)高電(dian)壓(ya)時(shi)，實時(shi)計算第一(yi)最(zui)高電(dian)壓(ya)與當前的標定(ding)最(zui)高電(dian)壓(ya)的第一(yi)差(cha)值(zhi)，將第一(yi)差(cha)值(zhi)和預設下(xia)(xia)調比例的乘積作為下(xia)(xia)調幅(fu)度，并依據第一(yi)允許(xu)充電(dian)倍率和下(xia)(xia)調幅(fu)度獲(huo)得第二(er)允許(xu)充電(dian)倍率。

24、優選地(di)，發送模塊還用于在(zai)第一最高(gao)電(dian)(dian)壓(ya)小于等于當前的(de)標定最高(gao)電(dian)(dian)壓(ya)時，持續將第一允許(xu)充電(dian)(dian)倍率作為電(dian)(dian)流請求值發送給充電(dian)(dian)樁進(jin)行(xing)充電(dian)(dian)，直至(zhi)電(dian)(dian)池達(da)到下一個(ge)標定荷電(dian)(dian)狀態。

25、優(you)選地，計算模塊還用于(yu)(yu)在下一(yi)(yi)個標定荷(he)(he)電(dian)(dian)(dian)狀態(tai)(tai)(tai)對應的第三允(yun)許(xu)充電(dian)(dian)(dian)倍(bei)率(lv)(lv)小于(yu)(yu)上一(yi)(yi)個標定荷(he)(he)電(dian)(dian)(dian)狀態(tai)(tai)(tai)對應的第四(si)允(yun)許(xu)充電(dian)(dian)(dian)倍(bei)率(lv)(lv)時，在從上一(yi)(yi)個標定荷(he)(he)電(dian)(dian)(dian)狀態(tai)(tai)(tai)轉(zhuan)到下一(yi)(yi)個標定荷(he)(he)電(dian)(dian)(dian)狀態(tai)(tai)(tai)的過程中，基于(yu)(yu)第四(si)允(yun)許(xu)充電(dian)(dian)(dian)倍(bei)率(lv)(lv)和第三允(yun)許(xu)充電(dian)(dian)(dian)倍(bei)率(lv)(lv)，采用差分法計算實時獲得的第二荷(he)(he)電(dian)(dian)(dian)狀態(tai)(tai)(tai)對應的第五允(yun)許(xu)充電(dian)(dian)(dian)倍(bei)率(lv)(lv)。

26、優選(xuan)地，發送(song)模(mo)塊還用于(yu)在(zai)(zai)實時獲得的第二最(zui)(zui)高溫(wen)(wen)(wen)度(du)大于(yu)等于(yu)第一(yi)溫(wen)(wen)(wen)度(du)閾值(zhi)(zhi)時，在(zai)(zai)降溫(wen)(wen)(wen)過程(cheng)中降低(di)允許充(chong)電(dian)倍率(lv)，直(zhi)至電(dian)池的最(zui)(zui)高溫(wen)(wen)(wen)度(du)降低(di)至第二溫(wen)(wen)(wen)度(du)閾值(zhi)(zhi)；

27、其中第二溫(wen)度閾值小于等于第一(yi)溫(wen)度閾值。

28、優選地(di)，計(ji)算模塊還(huan)用(yong)于(yu)(yu)在(zai)第(di)一(yi)荷(he)電狀(zhuang)態(tai)位于(yu)(yu)倍率(lv)(lv)查詢(xun)表(biao)中兩個標(biao)定(ding)荷(he)電狀(zhuang)態(tai)之間(jian)時，基于(yu)(yu)其(qi)相鄰(lin)的兩個荷(he)電狀(zhuang)態(tai)對(dui)應的第(di)七允(yun)許(xu)充電倍率(lv)(lv)，采(cai)用(yong)差(cha)分法計(ji)算第(di)一(yi)允(yun)許(xu)充電倍率(lv)(lv)；并且在(zai)第(di)一(yi)最高(gao)溫度(du)位于(yu)(yu)倍率(lv)(lv)查詢(xun)表(biao)中兩個標(biao)定(ding)最高(gao)溫度(du)之間(jian)時，基于(yu)(yu)其(qi)相鄰(lin)的兩個標(biao)定(ding)最高(gao)溫度(du)對(dui)應的第(di)八允(yun)許(xu)充電倍率(lv)(lv)，采(cai)用(yong)差(cha)分法計(ji)算第(di)一(yi)允(yun)許(xu)充電倍率(lv)(lv)。

29、優選地(di)，計算模塊還(huan)用于(yu)(yu)在實時(shi)(shi)獲得(de)的第二最高(gao)溫(wen)(wen)度大于(yu)(yu)等于(yu)(yu)第一(yi)(yi)溫(wen)(wen)度閾值時(shi)(shi)，基于(yu)(yu)第一(yi)(yi)溫(wen)(wen)度閾值和下(xia)一(yi)(yi)標(biao)定最高(gao)溫(wen)(wen)度對(dui)應的充電(dian)倍率，采用差分法(fa)計算獲得(de)第二最高(gao)溫(wen)(wen)度對(dui)應的第六允許充電(dian)倍率；

30、發(fa)送模塊還用于在電(dian)(dian)(dian)(dian)池從第二最(zui)高溫度(du)降(jiang)低到(dao)第二溫度(du)閾值的過(guo)程中，保持(chi)將(jiang)第六允許充(chong)電(dian)(dian)(dian)(dian)倍率作(zuo)為電(dian)(dian)(dian)(dian)流請(qing)求值發(fa)送給充(chong)電(dian)(dian)(dian)(dian)樁(zhuang)進行充(chong)電(dian)(dian)(dian)(dian)。

31、通過以下(xia)參照(zhao)附圖(tu)對本技(ji)術(shu)(shu)的(de)示例性實(shi)施例的(de)詳細描述，本技(ji)術(shu)(shu)的(de)其它特征及其優點(dian)將會變得清楚。