本發明涉及電子技術領(ling)域(yu),特別涉及一(yi)種電池(chi)組電壓采集系(xi)統斷線檢(jian)測裝(zhuang)置和方法(fa)。
背景技術:
隨著電(dian)子信(xin)息技術的發(fa)展,移動(dong)電(dian)話、筆記本等便(bian)攜式的終端(duan)大量(liang)出(chu)現,電(dian)動(dong)車(che)也逐(zhu)漸普及。人們(men)更需要對終端(duan)的電(dian)池(chi)電(dian)量(liang)、電(dian)動(dong)車(che)的電(dian)池(chi)狀態(tai)進(jin)行監測,以便(bian)合理的管(guan)理電(dian)源能量(liang)。
電(dian)(dian)(dian)池(chi)(chi)在電(dian)(dian)(dian)動(dong)汽車市(shi)場(chang)、儲能市(shi)場(chang)等(deng)眾多(duo)場(chang)合(he)應用越(yue)(yue)來(lai)越(yue)(yue)廣泛(fan),電(dian)(dian)(dian)池(chi)(chi)猶如整個(ge)系統(tong)(tong)的(de)(de)心臟,給(gei)整個(ge)系統(tong)(tong)提供了(le)動(dong)力(li)。因此(ci),需要對電(dian)(dian)(dian)池(chi)(chi)信息進(jin)行實時監控(kong),而電(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)壓(ya)的(de)(de)采集(ji)是監控(kong)系統(tong)(tong)中的(de)(de)主(zhu)要參(can)數(shu)。一旦電(dian)(dian)(dian)池(chi)(chi)電(dian)(dian)(dian)壓(ya)采樣線斷線,系統(tong)(tong)失去對電(dian)(dian)(dian)池(chi)(chi)的(de)(de)監控(kong),錯(cuo)誤的(de)(de)電(dian)(dian)(dian)池(chi)(chi)信息會(hui)導(dao)致(zhi)電(dian)(dian)(dian)池(chi)(chi)過(guo)(guo)充、過(guo)(guo)放(fang)、一致(zhi)性(xing)降低,嚴重的(de)(de)甚至會(hui)發生爆炸,危及人身安全(quan)。
針對(dui)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)電(dian)(dian)(dian)(dian)壓(ya)采(cai)樣(yang)線(xian)的(de)斷(duan)線(xian)檢測(ce),目前已有一(yi)些專(zhuan)利(li)提(ti)出(chu)(chu)(chu)了解(jie)決(jue)方案。例如(ru)(ru)cn103825252a中(zhong)(zhong)提(ti)出(chu)(chu)(chu)了一(yi)種電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)連接(jie)斷(duan)線(xian)的(de)保護裝置及保護系統,該專(zhuan)利(li)預設(she)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)斷(duan)線(xian)保護電(dian)(dian)(dian)(dian)壓(ya),采(cai)集(ji)到(dao)的(de)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)電(dian)(dian)(dian)(dian)壓(ya)達(da)到(dao)預設(she)電(dian)(dian)(dian)(dian)壓(ya)時認為斷(duan)線(xian);又如(ru)(ru)專(zhuan)利(li)cn104391212a中(zhong)(zhong)提(ti)出(chu)(chu)(chu)了一(yi)種多路電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)電(dian)(dian)(dian)(dian)壓(ya)采(cai)集(ji)系統斷(duan)線(xian)檢測(ce)電(dian)(dian)(dian)(dian)路,如(ru)(ru)果電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)采(cai)樣(yang)線(xian)斷(duan)線(xian),電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)電(dian)(dian)(dian)(dian)壓(ya)通過控制開關信(xin)號被下拉到(dao)接(jie)地,微處理(li)器讀取到(dao)的(de)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)電(dian)(dian)(dian)(dian)壓(ya)為0,則判(pan)斷(duan)為斷(duan)線(xian);又如(ru)(ru)專(zhuan)利(li)cn106371031a中(zhong)(zhong)提(ti)出(chu)(chu)(chu)了一(yi)種電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)組斷(duan)線(xian)檢測(ce)方法和裝置,通過采(cai)集(ji)模塊采(cai)集(ji)電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)單(dan)體(ti)(ti)電(dian)(dian)(dian)(dian)壓(ya),通過判(pan)斷(duan)模塊判(pan)斷(duan)單(dan)體(ti)(ti)電(dian)(dian)(dian)(dian)壓(ya)是否為0,電(dian)(dian)(dian)(dian)池(chi)(chi)(chi)電(dian)(dian)(dian)(dian)壓(ya)為0則判(pan)斷(duan)為斷(duan)線(xian)。
從目前(qian)公開的(de)專利中(zhong)可(ke)以看出,現有(you)技術中(zhong)通過(guo)(guo)電(dian)(dian)(dian)(dian)池電(dian)(dian)(dian)(dian)壓(ya)(ya)來判(pan)斷(duan)(duan)是否斷(duan)(duan)線(xian)主(zhu)要(yao)的(de)方法(fa)(fa)有(you)兩種(zhong):一種(zhong)是設置電(dian)(dian)(dian)(dian)壓(ya)(ya)閾值,直接(jie)采集(ji)電(dian)(dian)(dian)(dian)池單(dan)體(ti)(ti)的(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)或通過(guo)(guo)硬(ying)件(jian)電(dian)(dian)(dian)(dian)路將電(dian)(dian)(dian)(dian)池的(de)采樣(yang)(yang)端(duan)進行處(chu)理后(hou)采集(ji)電(dian)(dian)(dian)(dian)池單(dan)體(ti)(ti)的(de)電(dian)(dian)(dian)(dian)壓(ya)(ya),若電(dian)(dian)(dian)(dian)壓(ya)(ya)達到(dao)閾值則(ze)判(pan)斷(duan)(duan)為斷(duan)(duan)線(xian)。一種(zhong)是采樣(yang)(yang)需判(pan)斷(duan)(duan)的(de)電(dian)(dian)(dian)(dian)池單(dan)體(ti)(ti)及(ji)其前(qian)后(hou)節電(dian)(dian)(dian)(dian)池單(dan)體(ti)(ti)的(de)電(dian)(dian)(dian)(dian)壓(ya)(ya),通過(guo)(guo)相互(hu)之間(jian)的(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)變化關系判(pan)斷(duan)(duan)電(dian)(dian)(dian)(dian)池電(dian)(dian)(dian)(dian)壓(ya)(ya)采樣(yang)(yang)線(xian)是否斷(duan)(duan)線(xian)。上述方法(fa)(fa)對電(dian)(dian)(dian)(dian)池電(dian)(dian)(dian)(dian)壓(ya)(ya)采集(ji)線(xian)斷(duan)(duan)線(xian)檢測方法(fa)(fa)均以直接(jie)采集(ji)到(dao)的(de)電(dian)(dian)(dian)(dian)池單(dan)體(ti)(ti)電(dian)(dian)(dian)(dian)壓(ya)(ya)為判(pan)斷(duan)(duan)依據,這種(zhong)解(jie)決(jue)方案在“靜態”工況下(xia)判(pan)斷(duan)(duan)比較準確(que),未(wei)考(kao)慮到(dao)電(dian)(dian)(dian)(dian)池在“動態”工況下(xia)的(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)波動以及(ji)電(dian)(dian)(dian)(dian)路中(zhong)電(dian)(dian)(dian)(dian)容等(deng)對電(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)影響,在實際應用中(zhong)經常出現誤判(pan)的(de)情況,導致(zhi)錯誤報警及(ji)保護(hu),影響系統的(de)安(an)全穩定運(yun)行。
技術實現要素:
本發明要解決的(de)技術問題是(shi):提(ti)供一種電池組電壓采集系統斷(duan)線檢測裝置和方法,其(qi)既考慮了(le)電池的(de)靜態特性又(you)考慮了(le)電池的(de)實際動態工(gong)況,提(ti)高了(le)斷(duan)線檢測判斷(duan)的(de)準確性。
本發(fa)明的(de)解決(jue)方案(an)是這(zhe)樣實現的(de):一種電池組電壓采集系統斷線檢測裝(zhuang)置,包括:
濾波穩壓模(mo)塊(kuai),與(yu)電(dian)池單(dan)(dan)體(ti)連(lian)接(jie)(jie),用(yong)于(yu)濾除外接(jie)(jie)干(gan)擾引起的(de)電(dian)池單(dan)(dan)體(ti)的(de)電(dian)壓紋(wen)波,穩定(ding)電(dian)池單(dan)(dan)體(ti)的(de)輸(shu)出電(dian)壓;
上拉(la)電(dian)(dian)流(liu)源模塊,與電(dian)(dian)池單(dan)體連(lian)接,用于(yu)在電(dian)(dian)池單(dan)體電(dian)(dian)壓采(cai)集的過程中提供(gong)供(gong)應(ying)電(dian)(dian)流(liu)至測量引(yin)腳(jiao),從而(er)采(cai)集到電(dian)(dian)池單(dan)體的上拉(la)電(dian)(dian)壓;
下拉電(dian)(dian)(dian)流源(yuan)模塊(kuai),與電(dian)(dian)(dian)池(chi)單(dan)(dan)體(ti)連接,用于在電(dian)(dian)(dian)池(chi)單(dan)(dan)體(ti)電(dian)(dian)(dian)壓(ya)(ya)采集的過程中提供吸收電(dian)(dian)(dian)流至測量引腳,從而采集到電(dian)(dian)(dian)池(chi)單(dan)(dan)體(ti)的下拉電(dian)(dian)(dian)壓(ya)(ya);
電(dian)壓采集模塊,用于采集每一(yi)節電(dian)池單體的電(dian)壓值,并提供給斷線檢(jian)測(ce)模塊進行處理;
電(dian)(dian)流采集(ji)(ji)模塊,用(yong)于采集(ji)(ji)電(dian)(dian)池組的電(dian)(dian)流,用(yong)于電(dian)(dian)池異常工況(kuang)的判斷,并提供給斷線檢測模塊進行(xing)處(chu)理。
本發明的另(ling)一(yi)技(ji)術(shu)方案(an)在于在上(shang)述基礎(chu)之(zhi)上(shang),所述濾波(bo)穩壓模(mo)塊(kuai)由(you)若干濾波(bo)穩壓子模(mo)塊(kuai)組成,每個(ge)濾波(bo)穩壓子模(mo)塊(kuai)分(fen)別與電池單體連接。
本發明的另(ling)一技(ji)術方案在于在上(shang)述基礎之(zhi)上(shang),所述濾波(bo)穩壓(ya)子(zi)模塊由若干不(bu)同(tong)參數的電(dian)容和電(dian)阻組成的濾波(bo)穩壓(ya)電(dian)路。
本發明的(de)(de)另一技術(shu)方案在于在上(shang)(shang)(shang)述基(ji)礎之上(shang)(shang)(shang),所述上(shang)(shang)(shang)拉(la)電(dian)流源(yuan)模塊(kuai)(kuai)由(you)若干子上(shang)(shang)(shang)拉(la)電(dian)流源(yuan)模塊(kuai)(kuai)組成(cheng),每個子上(shang)(shang)(shang)拉(la)電(dian)流源(yuan)模塊(kuai)(kuai)分別與電(dian)池單體連接,上(shang)(shang)(shang)拉(la)電(dian)流源(yuan)模塊(kuai)(kuai)在電(dian)池單體電(dian)壓采集的(de)(de)過(guo)程中提(ti)供(gong)(gong)100μa的(de)(de)供(gong)(gong)應電(dian)流至測量引腳,從而(er)采集到(dao)電(dian)池單體的(de)(de)上(shang)(shang)(shang)拉(la)電(dian)壓。
本發明的另一(yi)技術方案在(zai)于(yu)在(zai)上(shang)述基礎(chu)之上(shang),所述下(xia)拉(la)電(dian)流源模(mo)塊(kuai)(kuai)由若干下(xia)拉(la)電(dian)流源子模(mo)塊(kuai)(kuai)組成(cheng),每個下(xia)拉(la)電(dian)流源子模(mo)塊(kuai)(kuai)分別(bie)與(yu)電(dian)池(chi)單體(ti)連接,下(xia)拉(la)電(dian)流源模(mo)塊(kuai)(kuai)在(zai)電(dian)池(chi)單體(ti)電(dian)壓采集(ji)的過程中提供100μa的吸收電(dian)流至測(ce)量(liang)引(yin)腳(jiao),從而采集(ji)到電(dian)池(chi)單體(ti)的下(xia)拉(la)電(dian)壓。
本(ben)發明的另一(yi)技術方案(an)在于在上述基礎之(zhi)上,所(suo)述電壓(ya)采(cai)集(ji)模塊包括(kuo)由ad采(cai)樣電路(lu)、ad校正(zheng)電路(lu)和(he)電壓(ya)調理電路(lu)。
本發(fa)明的另(ling)一技術(shu)方(fang)案在(zai)于在(zai)上(shang)述(shu)基(ji)礎之上(shang),所述(shu)電(dian)流采(cai)集模塊包括電(dian)流傳感器(qi)、電(dian)壓(ya)調理(li)電(dian)路、ad采(cai)樣電(dian)路和ad校正(zheng)電(dian)路。
本發明(ming)的另一技術方案在于在上述基礎之上,還(huan)包括斷(duan)線檢測模(mo)(mo)塊,所述斷(duan)線檢測模(mo)(mo)塊與電壓采集(ji)模(mo)(mo)塊和電流(liu)采集(ji)模(mo)(mo)塊相(xiang)連。
本發(fa)明的另一技術方(fang)案在于在上述基(ji)礎之(zhi)上,所述斷線檢測模(mo)塊的檢測方(fang)法(fa)包括(kuo):
采樣(yang)電池組的總電流;
開啟上(shang)拉電流源模塊;
開啟下拉電流(liu)源模塊;
再次采(cai)樣電(dian)(dian)池(chi)組的總電(dian)(dian)流(liu),并(bing)判斷(duan)電(dian)(dian)流(liu)變化是(shi)否超過設定(ding)閾值(zhi)(zhi),若超過設定(ding)閾值(zhi)(zhi)則認為電(dian)(dian)池(chi)單體電(dian)(dian)壓采(cai)樣前后,電(dian)(dian)池(chi)工(gong)作在動(dong)(dong)態工(gong)況下,發生了(le)電(dian)(dian)壓波動(dong)(dong),容易(yi)產生誤判,放(fang)棄此次斷(duan)線(xian)檢測;
若電(dian)(dian)(dian)流變化未超過(guo)設定閾值,認為電(dian)(dian)(dian)池處于相對靜止的工況下(xia),電(dian)(dian)(dian)池單體(ti)電(dian)(dian)(dian)壓穩定,可以用來(lai)進行(xing)斷線(xian)檢測;
若第n接(jie)電池單體的上下(xia)拉電壓(ya)(ya)差(cha)值小于設定的電壓(ya)(ya)閾值,則認為第n-1節電池的采(cai)樣線斷線。
本發明的另一(yi)技術方案在于在上述基(ji)礎之(zhi)上,還提供了(le)一(yi)種(zhong)電(dian)(dian)池組電(dian)(dian)壓采集系統斷線檢測方法,包括以(yi)下步驟:
s1、采樣電(dian)池組的總電(dian)流并記錄為current_start;
s2、開啟上拉電(dian)(dian)流源(yuan)模(mo)塊,為電(dian)(dian)池(chi)單(dan)體電(dian)(dian)壓的采(cai)樣(yang)口提供(gong)100μa的供(gong)應電(dian)(dian)流,并采(cai)集電(dian)(dian)池(chi)單(dan)體的上拉電(dian)(dian)壓存放(fang)至cellpu(n);
s3、開啟下拉(la)電(dian)(dian)流源模塊(kuai),為電(dian)(dian)池(chi)(chi)單(dan)體電(dian)(dian)壓(ya)的采樣口提(ti)供100μa的吸(xi)收電(dian)(dian)流,并采集電(dian)(dian)池(chi)(chi)單(dan)體的下拉(la)電(dian)(dian)壓(ya)存放至(zhi)cellpd(n);
s4、再次(ci)采(cai)樣電(dian)(dian)池(chi)組的總電(dian)(dian)流并記錄為current_now,判斷(duan)電(dian)(dian)流變化是(shi)否(fou)超過(guo)設(she)定閾值,若(ruo)超過(guo)設(she)定閾值則認為電(dian)(dian)池(chi)單體電(dian)(dian)壓采(cai)樣前后,電(dian)(dian)池(chi)工作(zuo)在動(dong)態工況下,發生了電(dian)(dian)壓波動(dong),容易產生誤判,放棄此次(ci)斷(duan)線檢(jian)測;
s5、若(ruo)電流未超過設定閾值,認(ren)為電池處(chu)于相對(dui)靜止的工(gong)況(kuang)下,電池單(dan)體電壓(ya)穩(wen)定,可以用來進行(xing)斷線檢測;
s6、若第(di)n接(jie)電池單(dan)體的上下拉電壓差值(zhi)小于(yu)設定的電壓閾值(zhi),則認為第(di)n-1節電池的采樣線斷線。
從以(yi)上技(ji)術方案可以(yi)看(kan)出,本發明實施例(li)具有以(yi)下優點:
在(zai)本發明提供的(de)實(shi)施例中,提出一種(zhong)電(dian)(dian)池組采(cai)(cai)樣(yang)(yang)系統斷(duan)線(xian)檢測(ce)裝置和方(fang)法,其既考慮了電(dian)(dian)池的(de)靜態(tai)特性(xing)又考慮了電(dian)(dian)池的(de)實(shi)際動態(tai)工況(kuang),一方(fang)面并(bing)不直接(jie)采(cai)(cai)樣(yang)(yang)電(dian)(dian)池單體電(dian)(dian)壓,而是(shi)將采(cai)(cai)樣(yang)(yang)電(dian)(dian)池單體的(de)上下拉電(dian)(dian)壓作(zuo)為判斷(duan)依據(ju),通(tong)過采(cai)(cai)用電(dian)(dian)池電(dian)(dian)壓和系統電(dian)(dian)流相結合的(de)方(fang)式來(lai)檢測(ce)電(dian)(dian)池采(cai)(cai)樣(yang)(yang)線(xian)斷(duan)線(xian),簡化了電(dian)(dian)路設計,提高(gao)了采(cai)(cai)樣(yang)(yang)線(xian)斷(duan)線(xian)檢測(ce)的(de)準(zhun)確度從而保證(zheng)了系統的(de)安全性(xing)。
附圖說明
構成本(ben)發(fa)明(ming)(ming)的一部分的附圖用來(lai)提供(gong)對本(ben)發(fa)明(ming)(ming)的進一步理解(jie),本(ben)發(fa)明(ming)(ming)的示意(yi)性實施例及其說明(ming)(ming)用于(yu)解(jie)釋本(ben)發(fa)明(ming)(ming),并(bing)不(bu)構成對本(ben)發(fa)明(ming)(ming)的不(bu)當限定。
圖1為本發明一種實施方(fang)式中電池組電壓采集系統斷(duan)線(xian)檢測裝置的結構框圖;
圖(tu)2為發明一(yi)種實施方式中電(dian)池組電(dian)壓采集系統斷線(xian)檢(jian)測(ce)裝置的電(dian)路(lu)模塊圖(tu);
圖3為(wei)本發明一種實施方式中(zhong)電(dian)池(chi)組電(dian)壓(ya)采(cai)集系統斷線檢測方法的流程圖。
具體實施方式
下面結合(he)附(fu)圖對本(ben)發明進行詳細描述,本(ben)部分的(de)(de)描述僅(jin)是示范性(xing)和解(jie)釋性(xing),不應對本(ben)發明的(de)(de)保護范圍(wei)有任何的(de)(de)限制作用(yong)。此外(wai),本(ben)領域技術(shu)人員根據(ju)本(ben)文(wen)件(jian)的(de)(de)描述,可以(yi)對本(ben)文(wen)件(jian)中(zhong)實(shi)施(shi)例中(zhong)以(yi)及不同實(shi)施(shi)例中(zhong)的(de)(de)特(te)征(zheng)進行相(xiang)應組合(he)。
本(ben)發(fa)(fa)(fa)(fa)明(ming)(ming)的(de)(de)(de)(de)(de)(de)說(shuo)(shuo)明(ming)(ming)書和(he)權利要求書及(ji)(ji)上(shang)(shang)述(shu)(shu)(shu)附圖中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)術語“第(di)一”、“第(di)二”、“第(di)三”“第(di)四”等(如果存在(zai)(zai)(zai)(zai))是(shi)用于(yu)(yu)區別類(lei)似的(de)(de)(de)(de)(de)(de)對象,而不(bu)必(bi)用于(yu)(yu)描(miao)(miao)(miao)述(shu)(shu)(shu)特定(ding)的(de)(de)(de)(de)(de)(de)順(shun)(shun)序或(huo)(huo)(huo)(huo)(huo)先后次(ci)序。應該理(li)(li)解這(zhe)(zhe)樣使(shi)用的(de)(de)(de)(de)(de)(de)數據在(zai)(zai)(zai)(zai)適當(dang)情(qing)況(kuang)下(xia)可(ke)(ke)(ke)(ke)(ke)(ke)(ke)以(yi)(yi)(yi)(yi)互換,以(yi)(yi)(yi)(yi)便(bian)這(zhe)(zhe)里(li)描(miao)(miao)(miao)述(shu)(shu)(shu)的(de)(de)(de)(de)(de)(de)本(ben)發(fa)(fa)(fa)(fa)明(ming)(ming)的(de)(de)(de)(de)(de)(de)實施(shi)(shi)(shi)(shi)例(li),例(li)如能(neng)(neng)夠以(yi)(yi)(yi)(yi)除(chu)了(le)在(zai)(zai)(zai)(zai)這(zhe)(zhe)里(li)圖示(shi)(shi)(shi)(shi)或(huo)(huo)(huo)(huo)(huo)描(miao)(miao)(miao)述(shu)(shu)(shu)的(de)(de)(de)(de)(de)(de)那些(xie)以(yi)(yi)(yi)(yi)外(wai)的(de)(de)(de)(de)(de)(de)順(shun)(shun)序實施(shi)(shi)(shi)(shi)。此(ci)外(wai),術語“包(bao)括(kuo)”和(he)“具有(you)”以(yi)(yi)(yi)(yi)及(ji)(ji)他(ta)們(men)的(de)(de)(de)(de)(de)(de)任何變形,意圖在(zai)(zai)(zai)(zai)于(yu)(yu)覆蓋不(bu)排他(ta)的(de)(de)(de)(de)(de)(de)包(bao)含(han)(han),例(li)如,包(bao)含(han)(han)了(le)一系列步驟或(huo)(huo)(huo)(huo)(huo)單(dan)元的(de)(de)(de)(de)(de)(de)過程(cheng)(cheng)、方法(fa)(fa)、系統(tong)、產品或(huo)(huo)(huo)(huo)(huo)設備(bei)不(bu)必(bi)限于(yu)(yu)清楚(chu)地列出(chu)(chu)的(de)(de)(de)(de)(de)(de)那些(xie)步驟或(huo)(huo)(huo)(huo)(huo)單(dan)元,而是(shi)可(ke)(ke)(ke)(ke)(ke)(ke)(ke)包(bao)括(kuo)沒有(you)清楚(chu)地列出(chu)(chu)的(de)(de)(de)(de)(de)(de)或(huo)(huo)(huo)(huo)(huo)對于(yu)(yu)這(zhe)(zhe)些(xie)過程(cheng)(cheng)、方法(fa)(fa)、產品或(huo)(huo)(huo)(huo)(huo)設備(bei)固有(you)的(de)(de)(de)(de)(de)(de)其它(ta)步驟或(huo)(huo)(huo)(huo)(huo)單(dan)元。所(suo)述(shu)(shu)(shu)實施(shi)(shi)(shi)(shi)例(li)的(de)(de)(de)(de)(de)(de)示(shi)(shi)(shi)(shi)例(li)在(zai)(zai)(zai)(zai)附圖中(zhong)(zhong)示(shi)(shi)(shi)(shi)出(chu)(chu),其中(zhong)(zhong)自始至(zhi)終相同或(huo)(huo)(huo)(huo)(huo)類(lei)似的(de)(de)(de)(de)(de)(de)標號(hao)表示(shi)(shi)(shi)(shi)相同或(huo)(huo)(huo)(huo)(huo)類(lei)似的(de)(de)(de)(de)(de)(de)元件(jian)或(huo)(huo)(huo)(huo)(huo)具有(you)相同或(huo)(huo)(huo)(huo)(huo)類(lei)似功(gong)能(neng)(neng)的(de)(de)(de)(de)(de)(de)元件(jian)。下(xia)面通過參考附圖描(miao)(miao)(miao)述(shu)(shu)(shu)的(de)(de)(de)(de)(de)(de)實施(shi)(shi)(shi)(shi)例(li)是(shi)示(shi)(shi)(shi)(shi)例(li)性的(de)(de)(de)(de)(de)(de),僅用于(yu)(yu)解釋(shi)(shi)本(ben)發(fa)(fa)(fa)(fa)明(ming)(ming),而不(bu)能(neng)(neng)理(li)(li)解為(wei)對本(ben)發(fa)(fa)(fa)(fa)明(ming)(ming)的(de)(de)(de)(de)(de)(de)限制(zhi)。相反(fan),本(ben)發(fa)(fa)(fa)(fa)明(ming)(ming)的(de)(de)(de)(de)(de)(de)實施(shi)(shi)(shi)(shi)例(li)包(bao)括(kuo)落入(ru)所(suo)附加權利要求書的(de)(de)(de)(de)(de)(de)精神和(he)內(nei)涵范圍(wei)內(nei)的(de)(de)(de)(de)(de)(de)所(suo)有(you)變化、修改(gai)和(he)等同物。本(ben)部(bu)分(fen)(fen)的(de)(de)(de)(de)(de)(de)描(miao)(miao)(miao)述(shu)(shu)(shu)僅是(shi)示(shi)(shi)(shi)(shi)范性和(he)解釋(shi)(shi)性,不(bu)應對本(ben)發(fa)(fa)(fa)(fa)明(ming)(ming)的(de)(de)(de)(de)(de)(de)保護范圍(wei)有(you)任何的(de)(de)(de)(de)(de)(de)限制(zhi)作(zuo)用。此(ci)外(wai),本(ben)領(ling)域技(ji)(ji)術人員根據本(ben)文件(jian)的(de)(de)(de)(de)(de)(de)描(miao)(miao)(miao)述(shu)(shu)(shu),可(ke)(ke)(ke)(ke)(ke)(ke)(ke)以(yi)(yi)(yi)(yi)對本(ben)文件(jian)中(zhong)(zhong)實施(shi)(shi)(shi)(shi)例(li)中(zhong)(zhong)以(yi)(yi)(yi)(yi)及(ji)(ji)不(bu)同實施(shi)(shi)(shi)(shi)例(li)中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)特征(zheng)進(jin)行相應組合。在(zai)(zai)(zai)(zai)本(ben)發(fa)(fa)(fa)(fa)明(ming)(ming)的(de)(de)(de)(de)(de)(de)描(miao)(miao)(miao)述(shu)(shu)(shu)中(zhong)(zhong),需(xu)要說(shuo)(shuo)明(ming)(ming)的(de)(de)(de)(de)(de)(de)是(shi),除(chu)非另(ling)有(you)明(ming)(ming)確的(de)(de)(de)(de)(de)(de)規(gui)定(ding)和(he)限定(ding),術語“相連(lian)”、“連(lian)接(jie)(jie)(jie)(jie)”應做廣義理(li)(li)解,例(li)如,可(ke)(ke)(ke)(ke)(ke)(ke)(ke)以(yi)(yi)(yi)(yi)是(shi)固定(ding)連(lian)接(jie)(jie)(jie)(jie),也可(ke)(ke)(ke)(ke)(ke)(ke)(ke)以(yi)(yi)(yi)(yi)是(shi)可(ke)(ke)(ke)(ke)(ke)(ke)(ke)拆卸(xie)連(lian)接(jie)(jie)(jie)(jie),或(huo)(huo)(huo)(huo)(huo)一體地連(lian)接(jie)(jie)(jie)(jie);可(ke)(ke)(ke)(ke)(ke)(ke)(ke)以(yi)(yi)(yi)(yi)是(shi)機械連(lian)接(jie)(jie)(jie)(jie),也可(ke)(ke)(ke)(ke)(ke)(ke)(ke)以(yi)(yi)(yi)(yi)是(shi)電連(lian)接(jie)(jie)(jie)(jie);可(ke)(ke)(ke)(ke)(ke)(ke)(ke)以(yi)(yi)(yi)(yi)是(shi)直(zhi)接(jie)(jie)(jie)(jie)相連(lian),也可(ke)(ke)(ke)(ke)(ke)(ke)(ke)以(yi)(yi)(yi)(yi)通過中(zhong)(zhong)間(jian)媒(mei)介間(jian)接(jie)(jie)(jie)(jie)相連(lian)。對于(yu)(yu)本(ben)領(ling)域的(de)(de)(de)(de)(de)(de)普通技(ji)(ji)術人員而言,可(ke)(ke)(ke)(ke)(ke)(ke)(ke)以(yi)(yi)(yi)(yi)具體情(qing)況(kuang)理(li)(li)解上(shang)(shang)述(shu)(shu)(shu)術語在(zai)(zai)(zai)(zai)本(ben)發(fa)(fa)(fa)(fa)明(ming)(ming)中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)具體含(han)(han)義。此(ci)外(wai),在(zai)(zai)(zai)(zai)本(ben)發(fa)(fa)(fa)(fa)明(ming)(ming)的(de)(de)(de)(de)(de)(de)描(miao)(miao)(miao)述(shu)(shu)(shu)中(zhong)(zhong),除(chu)非另(ling)有(you)說(shuo)(shuo)明(ming)(ming),“多個(ge)(ge)”的(de)(de)(de)(de)(de)(de)含(han)(han)義是(shi)兩(liang)個(ge)(ge)或(huo)(huo)(huo)(huo)(huo)兩(liang)個(ge)(ge)以(yi)(yi)(yi)(yi)上(shang)(shang)。流程(cheng)(cheng)圖中(zhong)(zhong)或(huo)(huo)(huo)(huo)(huo)在(zai)(zai)(zai)(zai)此(ci)以(yi)(yi)(yi)(yi)其他(ta)方式(shi)描(miao)(miao)(miao)述(shu)(shu)(shu)的(de)(de)(de)(de)(de)(de)任何過程(cheng)(cheng)或(huo)(huo)(huo)(huo)(huo)方法(fa)(fa)描(miao)(miao)(miao)述(shu)(shu)(shu)可(ke)(ke)(ke)(ke)(ke)(ke)(ke)以(yi)(yi)(yi)(yi)被(bei)理(li)(li)解為(wei),表示(shi)(shi)(shi)(shi)包(bao)括(kuo)一個(ge)(ge)或(huo)(huo)(huo)(huo)(huo)更(geng)多個(ge)(ge)用于(yu)(yu)實現(xian)(xian)特定(ding)邏(luo)輯(ji)功(gong)能(neng)(neng)或(huo)(huo)(huo)(huo)(huo)過程(cheng)(cheng)的(de)(de)(de)(de)(de)(de)步驟的(de)(de)(de)(de)(de)(de)可(ke)(ke)(ke)(ke)(ke)(ke)(ke)執行指令的(de)(de)(de)(de)(de)(de)代碼的(de)(de)(de)(de)(de)(de)模塊(kuai)、片段(duan)或(huo)(huo)(huo)(huo)(huo)部(bu)分(fen)(fen),并且本(ben)發(fa)(fa)(fa)(fa)明(ming)(ming)的(de)(de)(de)(de)(de)(de)優選實施(shi)(shi)(shi)(shi)方式(shi)的(de)(de)(de)(de)(de)(de)范圍(wei)包(bao)括(kuo)另(ling)外(wai)的(de)(de)(de)(de)(de)(de)實現(xian)(xian),其中(zhong)(zhong)可(ke)(ke)(ke)(ke)(ke)(ke)(ke)以(yi)(yi)(yi)(yi)不(bu)按(an)(an)所(suo)示(shi)(shi)(shi)(shi)出(chu)(chu)或(huo)(huo)(huo)(huo)(huo)討論(lun)的(de)(de)(de)(de)(de)(de)順(shun)(shun)序,包(bao)括(kuo)根據所(suo)涉及(ji)(ji)的(de)(de)(de)(de)(de)(de)功(gong)能(neng)(neng)按(an)(an)基(ji)本(ben)同時(shi)的(de)(de)(de)(de)(de)(de)方式(shi)或(huo)(huo)(huo)(huo)(huo)按(an)(an)相反(fan)的(de)(de)(de)(de)(de)(de)順(shun)(shun)序,來執行功(gong)能(neng)(neng),這(zhe)(zhe)應被(bei)本(ben)發(fa)(fa)(fa)(fa)明(ming)(ming)的(de)(de)(de)(de)(de)(de)實施(shi)(shi)(shi)(shi)例(li)所(suo)屬技(ji)(ji)術領(ling)域的(de)(de)(de)(de)(de)(de)技(ji)(ji)術人員所(suo)理(li)(li)解。
本發(fa)明實施例(li)如下,如圖1所示,一種電池(chi)組(zu)電壓采集(ji)系統(tong)斷線檢(jian)測(ce)裝置,包(bao)括:
濾波(bo)穩壓(ya)模塊100,與電池單(dan)(dan)體連接(jie),用于濾除外接(jie)干(gan)擾引(yin)起的(de)電池單(dan)(dan)體的(de)電壓(ya)紋(wen)波(bo),穩定電池單(dan)(dan)體的(de)輸出(chu)電壓(ya);
上拉(la)電(dian)流源(yuan)模(mo)塊200,與電(dian)池(chi)單體(ti)(ti)(ti)連接,用于(yu)在(zai)電(dian)池(chi)單體(ti)(ti)(ti)電(dian)壓采集(ji)的(de)過程中提供供應電(dian)流至測量引(yin)腳,從而采集(ji)到電(dian)池(chi)單體(ti)(ti)(ti)的(de)上拉(la)電(dian)壓;
下拉電(dian)流源(yuan)模塊300,與電(dian)池(chi)(chi)單體(ti)連接,用于在電(dian)池(chi)(chi)單體(ti)電(dian)壓采集的(de)(de)過程中提供吸收(shou)電(dian)流至測量引腳,從而(er)采集到(dao)電(dian)池(chi)(chi)單體(ti)的(de)(de)下拉電(dian)壓;
電(dian)壓(ya)采(cai)集(ji)模塊400,用于采(cai)集(ji)每一節電(dian)池單體(ti)的電(dian)壓(ya)值,并提供給斷線檢(jian)測模塊進行處理;
電流(liu)采集(ji)模塊500,用于(yu)采集(ji)電池組(zu)的電流(liu),用于(yu)電池異(yi)常工況(kuang)的判斷,并提供給(gei)斷線(xian)檢測模塊進(jin)行處理。
在上(shang)(shang)述(shu)實施例(li)的基礎上(shang)(shang),本發明另一實施例(li)中,所述(shu)濾波(bo)穩壓模(mo)(mo)塊(kuai)100由若(ruo)干濾波(bo)穩壓子模(mo)(mo)塊(kuai)組(zu)成,每個濾波(bo)穩壓子模(mo)(mo)塊(kuai)分別(bie)與(yu)電池單體連接。
在(zai)上述實施(shi)例的(de)基礎上,本發明另一(yi)實施(shi)例中,所述濾(lv)波穩壓(ya)子模塊由若干不同(tong)參(can)數(shu)的(de)電容和電阻(zu)組(zu)成(cheng)的(de)濾(lv)波穩壓(ya)電路。
在上(shang)述實施例的(de)基礎上(shang),本發明另(ling)一(yi)實施例中,所述上(shang)拉電(dian)(dian)流(liu)(liu)(liu)(liu)源(yuan)模(mo)塊(kuai)(kuai)(kuai)200由若干子(zi)上(shang)拉電(dian)(dian)流(liu)(liu)(liu)(liu)源(yuan)模(mo)塊(kuai)(kuai)(kuai)200組成,每個子(zi)上(shang)拉電(dian)(dian)流(liu)(liu)(liu)(liu)源(yuan)模(mo)塊(kuai)(kuai)(kuai)200分別與電(dian)(dian)池單(dan)體(ti)連(lian)接,上(shang)拉電(dian)(dian)流(liu)(liu)(liu)(liu)源(yuan)模(mo)塊(kuai)(kuai)(kuai)200在電(dian)(dian)池單(dan)體(ti)電(dian)(dian)壓(ya)采集(ji)的(de)過(guo)程(cheng)中提供100μa的(de)供應電(dian)(dian)流(liu)(liu)(liu)(liu)至(zhi)測(ce)量引(yin)腳,從而(er)采集(ji)到電(dian)(dian)池單(dan)體(ti)的(de)上(shang)拉電(dian)(dian)壓(ya)。
在上述(shu)實施例的(de)基礎上,本(ben)發(fa)明另一實施例中,所述(shu)下(xia)拉電流源模塊300由若干下(xia)拉電流源子模塊組成,每個下(xia)拉電流源子模塊分別與電池(chi)單(dan)體(ti)連接,下(xia)拉電流源模塊300在電池(chi)單(dan)體(ti)電壓采集的(de)過程中提供100μa的(de)吸收(shou)電流至(zhi)測量(liang)引腳(jiao),從而(er)采集到電池(chi)單(dan)體(ti)的(de)下(xia)拉電壓。
在上述(shu)實施(shi)例的(de)基(ji)礎(chu)上,本發明另一(yi)實施(shi)例中,所述(shu)電壓(ya)(ya)采集模塊400包括由ad采樣電路、ad校正電路和電壓(ya)(ya)調理電路。
在上述(shu)實施(shi)例的(de)基(ji)礎上,本發明另一實施(shi)例中,所述(shu)電(dian)(dian)流采(cai)集模塊500包括電(dian)(dian)流傳感器、電(dian)(dian)壓調理電(dian)(dian)路、ad采(cai)樣電(dian)(dian)路和(he)ad校(xiao)正電(dian)(dian)路。
在上(shang)述實施(shi)例的基礎上(shang),本發明另一(yi)實施(shi)例中(zhong),還(huan)包括斷線檢測(ce)模塊600,所述斷線檢測(ce)模塊600與電壓采(cai)集模塊400和電流(liu)采(cai)集模塊500相連。
在(zai)上述實(shi)施(shi)例(li)(li)的(de)基礎上,本發明另(ling)一實(shi)施(shi)例(li)(li)中,所述斷線檢測(ce)模塊(kuai)600的(de)處理方法包括:
采樣(yang)電池(chi)組的總電流;
開啟上拉電流源模塊200;
開啟(qi)下(xia)拉電流源模塊(kuai)300;
再次(ci)采樣電池組的總電流,并判斷(duan)電流變化是否超過設定閾值(zhi),若超過設定閾值(zhi)則(ze)認(ren)為電池單(dan)體電壓采樣前后,電池工作在動態(tai)工況下,發(fa)生了電壓波動,容易產(chan)生誤判,放棄此(ci)次(ci)斷(duan)線檢測;
若(ruo)電(dian)(dian)流(liu)變化未超過設(she)定閾值(zhi),認為(wei)電(dian)(dian)池處(chu)于相(xiang)對靜止的工況下(xia),電(dian)(dian)池單體電(dian)(dian)壓(ya)穩定,可(ke)以用來進行(xing)斷線檢測;
若第n接電池(chi)(chi)單(dan)體的(de)上下拉電壓差值(zhi)小于設定的(de)電壓閾值(zhi),則認(ren)為第n-1節電池(chi)(chi)的(de)采樣線斷(duan)線。
如圖(tu)2所示,是(shi)以六(liu)(liu)節串聯的(de)單體(ti)(ti)電池(chi)應(ying)用為例的(de)斷(duan)線保護裝置示意圖(tu)。需要說明(ming)的(de)是(shi),圖(tu)2中以六(liu)(liu)節串聯單體(ti)(ti)電池(chi)為例進(jin)行說明(ming)僅(jin)是(shi)示意性的(de),本(ben)發(fa)明(ming)中對(dui)電池(chi)組中單體(ti)(ti)電池(chi)的(de)數量并無限制(zhi),以六(liu)(liu)節串聯單體(ti)(ti)電池(chi)為例僅(jin)是(shi)為了清楚起(qi)見。
其中(zhong),濾(lv)(lv)波(bo)(bo)穩壓(ya)模塊(kuai)100由七個子濾(lv)(lv)波(bo)(bo)穩壓(ya)模塊(kuai)組成,分(fen)別(bie)與第(di)(di)一(yi)(yi)節電(dian)(dian)(dian)(dian)(dian)(dian)池負(fu)(fu)極(ji)(ji)(ji)(ji)c0、正(zheng)(zheng)極(ji)(ji)(ji)(ji)c1,第(di)(di)二節電(dian)(dian)(dian)(dian)(dian)(dian)池負(fu)(fu)極(ji)(ji)(ji)(ji)c1、正(zheng)(zheng)極(ji)(ji)(ji)(ji)c2,第(di)(di)三節電(dian)(dian)(dian)(dian)(dian)(dian)池負(fu)(fu)極(ji)(ji)(ji)(ji)c2、正(zheng)(zheng)極(ji)(ji)(ji)(ji)c3,第(di)(di)四節電(dian)(dian)(dian)(dian)(dian)(dian)池負(fu)(fu)極(ji)(ji)(ji)(ji)c3、正(zheng)(zheng)極(ji)(ji)(ji)(ji)c4,第(di)(di)五節電(dian)(dian)(dian)(dian)(dian)(dian)池負(fu)(fu)極(ji)(ji)(ji)(ji)c4、正(zheng)(zheng)極(ji)(ji)(ji)(ji)c5,第(di)(di)六節電(dian)(dian)(dian)(dian)(dian)(dian)池負(fu)(fu)極(ji)(ji)(ji)(ji)c5、正(zheng)(zheng)極(ji)(ji)(ji)(ji)c6相連接(jie)。每一(yi)(yi)個子濾(lv)(lv)波(bo)(bo)穩壓(ya)模塊(kuai)由第(di)(di)一(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)、第(di)(di)一(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)和第(di)(di)二電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)組成,其中(zhong)第(di)(di)一(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)為(wei)低通濾(lv)(lv)波(bo)(bo)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu),如圖(tu)2中(zhong)所示的(de)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)r68-r74,第(di)(di)一(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)和第(di)(di)二電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)為(wei)的(de)低通濾(lv)(lv)波(bo)(bo)及穩壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong),第(di)(di)一(yi)(yi)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)如圖(tu)2中(zhong)所示的(de)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)c37-c43,第(di)(di)二電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)如圖(tu)2中(zhong)所示的(de)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)c44-c51。通過濾(lv)(lv)波(bo)(bo)穩壓(ya)模塊(kuai),保證電(dian)(dian)(dian)(dian)(dian)(dian)池單體電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)在采集(ji)時的(de)穩定(ding);
上(shang)(shang)拉(la)電(dian)(dian)(dian)(dian)流(liu)源模(mo)塊200由七個子上(shang)(shang)拉(la)電(dian)(dian)(dian)(dian)流(liu)源模(mo)塊組(zu)成(cheng),分別與第一節(jie)(jie)電(dian)(dian)(dian)(dian)池(chi)負(fu)(fu)極(ji)(ji)(ji)(ji)(ji)c0、正(zheng)極(ji)(ji)(ji)(ji)(ji)c1,第二節(jie)(jie)電(dian)(dian)(dian)(dian)池(chi)負(fu)(fu)極(ji)(ji)(ji)(ji)(ji)c1、正(zheng)極(ji)(ji)(ji)(ji)(ji)c2,第三節(jie)(jie)電(dian)(dian)(dian)(dian)池(chi)負(fu)(fu)極(ji)(ji)(ji)(ji)(ji)c2、正(zheng)極(ji)(ji)(ji)(ji)(ji)c3,第四節(jie)(jie)電(dian)(dian)(dian)(dian)池(chi)負(fu)(fu)極(ji)(ji)(ji)(ji)(ji)c3、正(zheng)極(ji)(ji)(ji)(ji)(ji)c4,第五(wu)節(jie)(jie)電(dian)(dian)(dian)(dian)池(chi)負(fu)(fu)極(ji)(ji)(ji)(ji)(ji)c4、正(zheng)極(ji)(ji)(ji)(ji)(ji)c5,第六節(jie)(jie)電(dian)(dian)(dian)(dian)池(chi)負(fu)(fu)極(ji)(ji)(ji)(ji)(ji)c5、正(zheng)極(ji)(ji)(ji)(ji)(ji)c6相連接(jie)。上(shang)(shang)拉(la)電(dian)(dian)(dian)(dian)流(liu)源模(mo)塊200在電(dian)(dian)(dian)(dian)池(chi)單(dan)(dan)體電(dian)(dian)(dian)(dian)壓(ya)的采(cai)集端提供(gong)100μa的供(gong)應(ying)電(dian)(dian)(dian)(dian)流(liu),從而采(cai)集到電(dian)(dian)(dian)(dian)池(chi)單(dan)(dan)體的上(shang)(shang)拉(la)電(dian)(dian)(dian)(dian)壓(ya);
下(xia)(xia)拉電(dian)(dian)流(liu)源模塊300由七個子下(xia)(xia)拉電(dian)(dian)流(liu)源模塊組成,分別與第一節(jie)(jie)電(dian)(dian)池負極(ji)c0、正(zheng)極(ji)c1,第二節(jie)(jie)電(dian)(dian)池負極(ji)c1、正(zheng)極(ji)c2,第三節(jie)(jie)電(dian)(dian)池負極(ji)c2、正(zheng)極(ji)c3,第四節(jie)(jie)電(dian)(dian)池負極(ji)c3、正(zheng)極(ji)c4,第五節(jie)(jie)電(dian)(dian)池負極(ji)c4、正(zheng)極(ji)c5,第六節(jie)(jie)電(dian)(dian)池負極(ji)c5、正(zheng)極(ji)c6相連接。下(xia)(xia)拉電(dian)(dian)流(liu)源模塊300在電(dian)(dian)池單體(ti)電(dian)(dian)壓的(de)采集端提供(gong)100μa的(de)吸收電(dian)(dian)流(liu),從(cong)而采集到電(dian)(dian)池單體(ti)的(de)下(xia)(xia)拉電(dian)(dian)壓;
電(dian)(dian)壓(ya)采(cai)集(ji)(ji)模(mo)(mo)塊400由(you)七路電(dian)(dian)壓(ya)采(cai)集(ji)(ji)子模(mo)(mo)塊組成,分(fen)別與第一節(jie)(jie)電(dian)(dian)池(chi)負(fu)極(ji)(ji)(ji)(ji)c0、正極(ji)(ji)(ji)(ji)c1,第二節(jie)(jie)電(dian)(dian)池(chi)負(fu)極(ji)(ji)(ji)(ji)c1、正極(ji)(ji)(ji)(ji)c2,第三節(jie)(jie)電(dian)(dian)池(chi)負(fu)極(ji)(ji)(ji)(ji)c2、正極(ji)(ji)(ji)(ji)c3,第四(si)節(jie)(jie)電(dian)(dian)池(chi)負(fu)極(ji)(ji)(ji)(ji)c3、正極(ji)(ji)(ji)(ji)c4,第五節(jie)(jie)電(dian)(dian)池(chi)負(fu)極(ji)(ji)(ji)(ji)c4、正極(ji)(ji)(ji)(ji)c5,第六節(jie)(jie)電(dian)(dian)池(chi)負(fu)極(ji)(ji)(ji)(ji)c5、正極(ji)(ji)(ji)(ji)c6相連接。經(jing)過電(dian)(dian)壓(ya)采(cai)集(ji)(ji)模(mo)(mo)塊400采(cai)集(ji)(ji),得到所有(you)電(dian)(dian)池(chi)單體(ti)的上拉(la)或下拉(la)電(dian)(dian)壓(ya)值,并將采(cai)樣值提供給(gei)斷線(xian)檢測模(mo)(mo)塊進行(xing)處理(li);
電(dian)(dian)流采集模塊(kuai)500采集六節電(dian)(dian)池(chi)組成的電(dian)(dian)池(chi)組的總電(dian)(dian)流,并將采樣值提供給斷線檢測模塊(kuai)600進行(xing)處理。
其中,斷線(xian)檢測(ce)模塊(kuai)600的處理(li)方法(fa),如圖3所(suo)示,包括(kuo)以下步驟(zou):
s1、采(cai)樣電池組的總電流并記錄為current_start;
s2、開啟(qi)上拉(la)電(dian)(dian)流源模塊200,為電(dian)(dian)池單體電(dian)(dian)壓的(de)采樣口提供100μa的(de)供應(ying)電(dian)(dian)流,并采集電(dian)(dian)池單體的(de)上拉(la)電(dian)(dian)壓存放至cellpu(n);
s3、開啟下(xia)拉電(dian)流源模塊300,為電(dian)池(chi)單體電(dian)壓的采(cai)樣口(kou)提供100μa的吸收(shou)電(dian)流,并采(cai)集電(dian)池(chi)單體的下(xia)拉電(dian)壓存(cun)放至cellpd(n);
s4、再次采(cai)樣電(dian)池組的總電(dian)流并記錄為current_now,判(pan)(pan)斷(duan)電(dian)流變化是否超過設定閾(yu)值,若超過設定閾(yu)值則(ze)認為電(dian)池單(dan)體電(dian)壓(ya)采(cai)樣前后,電(dian)池工作在(zai)動(dong)態工況下(xia),發生(sheng)了電(dian)壓(ya)波動(dong),容(rong)易(yi)產生(sheng)誤判(pan)(pan),放棄此(ci)次斷(duan)線檢(jian)測;
s5、若電流未超過設定閾(yu)值,認為(wei)電池(chi)處(chu)于相對靜(jing)止的工況下,電池(chi)單體電壓穩(wen)定,可(ke)以用來進(jin)行斷線檢測;
s6、若第n接電(dian)池單體(ti)的(de)上下拉電(dian)壓差值小于設定(ding)的(de)電(dian)壓閾值,則(ze)認(ren)為(wei)第n-1節電(dian)池的(de)采樣(yang)線斷線。
從以上技術方案(an)可以看出,本發明實(shi)施例(li)具有以下優點:
在(zai)本發(fa)明(ming)提(ti)供(gong)的(de)(de)(de)(de)實施例(li)中,提(ti)出(chu)一種電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)組采(cai)樣(yang)(yang)(yang)(yang)系(xi)統斷(duan)(duan)線檢測(ce)(ce)裝(zhuang)置和方(fang)(fang)法,其通(tong)過(guo)在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)單(dan)體(ti)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)采(cai)樣(yang)(yang)(yang)(yang)口(kou)之前(qian)添(tian)加濾波穩(wen)壓(ya)(ya)模塊,濾除(chu)外接高(gao)低頻(pin)信號帶來的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)波動(dong)(dong)影響(xiang),提(ti)高(gao)采(cai)樣(yang)(yang)(yang)(yang)精(jing)度(du);既考慮(lv)了(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)的(de)(de)(de)(de)靜態特性又考慮(lv)了(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)的(de)(de)(de)(de)實際動(dong)(dong)態工況(kuang),一方(fang)(fang)面并不(bu)直接采(cai)樣(yang)(yang)(yang)(yang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)單(dan)體(ti)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya),而(er)是將(jiang)采(cai)樣(yang)(yang)(yang)(yang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)單(dan)體(ti)的(de)(de)(de)(de)上(shang)下(xia)拉電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)作為(wei)判(pan)斷(duan)(duan)依(yi)據,通(tong)過(guo)在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)單(dan)體(ti)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)采(cai)樣(yang)(yang)(yang)(yang)口(kou)之前(qian)添(tian)加上(shang)下(xia)拉恒流源(yuan)模塊,給(gei)串聯的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)采(cai)樣(yang)(yang)(yang)(yang)提(ti)供(gong)或吸(xi)收一定(ding)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流,將(jiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)單(dan)體(ti)的(de)(de)(de)(de)上(shang)下(xia)拉電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)做為(wei)判(pan)斷(duan)(duan)依(yi)據,一方(fang)(fang)面對采(cai)樣(yang)(yang)(yang)(yang)口(kou)進行(xing)保(bao)護,一方(fang)(fang)面提(ti)高(gao)了(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)變化的(de)(de)(de)(de)識別度(du);另外,通(tong)過(guo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)及電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流相結合(he)的(de)(de)(de)(de)方(fang)(fang)式判(pan)斷(duan)(duan)采(cai)樣(yang)(yang)(yang)(yang)線是否斷(duan)(duan)線,提(ti)高(gao)了(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)動(dong)(dong)態的(de)(de)(de)(de)工況(kuang)下(xia)的(de)(de)(de)(de)斷(duan)(duan)線檢測(ce)(ce)準確率,從而(er)保(bao)證了(le)系(xi)統的(de)(de)(de)(de)安全性。
以上所述僅是本(ben)發明(ming)的優選實施方式,應當指出,對于(yu)本(ben)技術(shu)領(ling)域的普通技術(shu)人員來說,在不(bu)脫離本(ben)發明(ming)原(yuan)理的前提下,還(huan)可以做出若干(gan)改進和(he)潤(run)(run)飾,這些改進和(he)潤(run)(run)飾也應視為本(ben)發明(ming)的保護范圍。