Indlela ye-IC ezinikeleyo okanye iya kuba sisikhubekiso senkqubo yolawulo lwebhetri

2022/04/08

Umbhali :Iflowpower-UMboneleli weSikhululo saMandla esiphathwayo

Ukuboleka ixesha kuqoqosho, iimveliso ze-BMS zeemoto zombane okwangoku zikwimeko "yokuswela". Nangona umsebenzi wemveliso uhlala uphucula, isicelo semarike siyanda, kodwa inqanaba lobugcisa eliphambili lemveliso lisamile, indawo yentlungu yokuqala isekho. Esinye sezizathu ezibalulekileyo zale meko yindlela yethu yoyilo lwemveliso, olu lulawulo lwebhetri olukhethekileyo lwe-IC olubonelelwa ngabavelisi be-IC semiconductor bangaphandle, kunye noyilo kunye nokusetyenziswa kwayo.

Iimveliso ze-BMS zinokwahlulwa zibe ziinxalenye ezimbini ezizimeleyo ze-algorithm yesoftware kunye nolwakhiwo lwehardware kuba ii-algorithms zesoftware zinobuchwephesha kwaye zinxulunyaniswa nezixhobo zehardware. Eli nqaku liqhuba kuphela inxalenye yoqhagamshelwano phakathi kwe-architecture ye-hardware kunye nomsebenzi wemveliso. Ingxoxo yohlalutyo.

Isiqalo sokuqala kulawulo lwebhetri ezinikeleyo chip. Ukuvela kunye nophuhliso lolawulo lwebhetri olunikezelweyo lwe-IC luhambelana ngokusondeleyo kwiingxaki ezahlukeneyo ezifunyenwe kwinkqubo yebhetri ye-lithium ion. Okokuqala, ukwenzela ukusombulula ukugqithiswa kwebhetri ye-lithium-ion, ukuhlawulwa kunye nokukhupha i-chip yokukhusela ibhetri enye yenzelwe.

Kamva, yaphuhliswa kwi-multi-segment yebhetri ye-lithium-ion ukuphuhlisa i-chip string string. Ngeli xesha, yaba yi-chip yolawulo lweBattery, kubalulekile ukuqokelela idatha yombane webhetri nganye kwipakethi yebhetri. Ukuqhubela phambili, ukwenzela ukujamelana nengxaki yokungahambelani, umsebenzi wokuqhuba umbane wombane udityaniswa ngakumbi, i-IC yokulawula ibhetri kunye nokulinganisa.

Ukuthetha injongo, ulawulo lwebhetri oluzinikeleyo lwe-IC lufezekise ishishini le-BMS kwangoko kwaye lukhokele uphuhliso lweemveliso ze-BMS. Kungenxa yokuba kukho i-chip ekhethekileyo, uyilo lwe-BMS lunokwenziwa lula kakhulu, kwaye i-miniaturization kunye nokuthembeka kwemveliso kuphuculwe kakhulu, kodwa kwangaxeshanye, kufuneka sibone imida yeetshiphusi ezikhethekileyo. Njengoko bekutshiwo ngaphambili, ulawulo lwebhetri olunikezelweyo lwe-chip lukwaphuhliswa kunye nokusetyenziswa kweebhetri ze-lithium ion, kwaye iibhetri ze-lithium-ion zakuqala zisetyenziswa kwisixhobo esincinci sombane, kwaye kamva zisetyenziswa ngokubanzi kwiilaptops, kwaye ulawulo lwebhetri olunikezelweyo luhlala luhlala. ibe imitya Low, iinkonzo izixhobo ezincinci.

Xa ibhetri ye-lithium-ion ifakwe kwiimoto zombane, imeko ishintshile. Isithuthi sombane se-lithium ion ibhetri ipakethe yintambo ephezulu, ibhetri enkulu yomthamo isetyenziswe kwichungechunge, kwaye inani leentambo zeshumi okanye namakhulu eentambo azisekho i-laptop, kwaye uluhlu lwemigca ye-serialized ingasetyenziswa kwi-series. I-IC ezinikeleyo ayizange isebenze, kwaye imveliso yeentambo ezininzi izicelo iqaliswa ngokukhawuleza, kodwa ngokuqwalasela i-voltage kunye nobunzima besicelo ngokubanzi akukho ngaphezu kweentambo ze-20.

Uyilo oluqhelekileyo lwe-BMS kusetyenziswa ezi ICs luyilo olusembindini. Kukho uxhulumaniso olunye kuphela phakathi kwe-BMS kunye nepakethe yebhetri, kuxhomekeke kwinani leepakethi zebhetri, inani lee-chips ezithile kwibhodi ye-BMS nayo ixhomekeke kwinani leebhetri. Njengoko kunokubonwa kwiskimu, izibonelelo zeemveliso ze-BMS ezisembindini zilula kwaye zinexabiso eliphantsi.

Xa inani leentambo kwipakethi yebhetri, umzekelo, i-10 ingumtya, uxhulumaniso alunzima kakhulu, kwaye kwimeko apho umthamo webhetri uncinci, indawo yokufaka i-BMS inokusondela kwipakethi yebhetri yonke, mfutshane. umgama wocingo, ipakethe yebhetri ---- BMS, yonke inkqubo yamandla ixinene ngakumbi, ifaneleka ngakumbi kwiibhayisekile zombane kunye nezithuthuthu zombane. Nangona kunjalo, xa isetyenziswe kwipakethi yebhetri ye-lithium ion yesithuthi sombane, ngenxa yokuba umthamo webhetri mkhulu, ubukhulu bomzimba bukhulu kakhulu emva kweqela, uxhulumaniso luya kuba lude, kwaye ubude abukho kakhulu, kunye nenani leentambo. , kukho ezininzi , Amashumi okanye ulungiselelo lwamakhulu emigca luyinkathazo kakhulu. Enye ingcaciso ebalulekileyo kukuba umyalelo wezi ziqhagamshelo kufuneka ulungiswe, kuba i-pin ye-chip ekhethekileyo sele ibandakanye ukulandelelana kwebhetri kwangaphambili, ngoko uxhulumaniso kumtya ngamnye kufuneka lufikeleleke kwi-Pin foot bit echazwe yi. BMS.

Nangona kungekho bunzima kumsebenzi woyilo lwe-BMS, yingxaki encinci kunxibelelwano lokwenyani phakathi kwe-BMS kunye neepakethi zebhetri. Imigca eqhelekileyo ixhunywe kwibhetri kunye, kwaye enye isiphelo ixhunyiwe kwi-BMS nge-plugin, kwaye umsebenzi uqhagamshelwe kwibhetri. Kwakhona kunzima ukugqiba, kwaye kunzima ukugqiba ngomatshini, oxhunywe kwi-electrode nganye yeseli nganye.

Awunakwenza naziphi na iimpazamo, lo msebenzi wonke ulungile. Ngokuhlalutya kwe-architecture ephakathi, sibona ukuba i-IC ezinikeleyo ifanelekile kumthamo omncinci, iintambo eziphantsi, kwaye kuya kubakho imigca edibeneyo kumthamo omkhulu kunye neentambo eziphezulu. Jonga ingxaki elungeleleneyo, i-architecture ye-centralized ifaneleke ngakumbi ukugqitywa kwe-balance balance, kwaye i-design yesekethe ayinakho ubunzima obutsha, kwaye i-IC ehamba phambili ezinikeleyo yangoku inomsebenzi.

Nangona kunjalo, umthamo wangoku ukhawulelwe, inqanaba lesiqingatha seyure, kwaye ingxaki ayinkulu ukuba ukuhambelana kokuqala kwebhetri ayinkulu, kwaye kuya kubakho umngcipheko wokulungiswa kokungalingani phakathi kunye nokuhambelana kamva. Ukuba ufuna ukujoyina umsebenzi wokulinganisela osebenzayo, i-architecture ekhoyo ngokusisiseko ayincedi, kunye ne-harness eyongezelelweyo kunye nokutshintsha kwe-matrix, ubunzima besiphaluka bukhuphuke ngokukhawuleza. I-matrix yokutshintsha kufuneka ibe nenani elikhulu lokutshintsha kwe-elektroniki, kodwa ngenxa yenani, isiphaluka solawulo sinzima kakhulu, kwaye inkampani ithathelwa indawo yi-relay, yenza lula ukuyila, kodwa ukuzisa i-relay njengokutshintsha komatshini kwiingxaki zobomi kwaye ukungaqondi umngcipheko.

Ewe kunjalo, kuyenzeka ukuba bandise ubomi bayo ngokunciphisa ukujikeleza kokutshintsha kwe-relay, ukunqanda imingcipheko ngokuhlolwa kokungasebenzi kakuhle, kodwa oku kuhlala kungenakukwazi ukuqinisekisa ukungaphumeleli okuphakathi kwesixhobo, kwaye ngaphezulu, inani lokuhanjiswa kwakhona. , ngaphezu kwesinye. Le yindlela yokulungelelanisa engavumelekanga, kunokusombulula isisombululo esilungileyo se-matrix yokutshintsha okusebenzayo. Ukuze kulungiswe umngeni onzima woxhulumaniso, i-BMS yolwakhiwo olusasazwayo ibonakala.

Le BMS ihlulwe kweminye imisebenzi ukuya kweminye imisebenzi, kwaye yonke inkqubo yahlulwe kwi-CSC (iyunithi yolawulo enye), i-BMU (umlawuli wolawulo lwebhetri), kwaye i-CSC ifakwe kwibhetri enye, inoxanduva lokuqokelela ulwazi lwebhetri lomtya kunye nokudluliselwa. , umtya ngamnye webhetri ufakwe kwi-BMU ngebhasi. Olu lwakhiwo lusombulula umceli mngeni onzima we-harness ngebhasi, kwaye kulula ukufakwa, ukusebenza kakuhle okuphezulu, ukuguquguquka okuhle, kufanelekile kwiiphakheji ezahlukeneyo zebhetri. I-BMS esasazwayo ayinakusebenzisa ulawulo lwebhetri oluzinikeleyo lwe-IC, oluyingcamango enempumelelo ngokwentelekiso ngeenjongo zoyilo olutsha.

Akwanelanga, ulwakhiwo olusasaziweyo alukasonjululwa ubudlelwane obuhambelanayo kunye nomngeni osebenzayo olungelelanisiweyo. I-CSC iphinda ibeke idilesi (nangona inokusetwa emva kofakelo, kuyimfuneko ukwenza kube lula ukuphumeza phambi kofakelo, impazamo enokwenzeka encinci), ibhalansi esebenzayo isafuna i-harness eyongezelelweyo kunye nokutshintsha i-matrix. Ngaphezu koko, ngenxa yokuba i-CSC nganye kufuneka ibe yi-MCU kunye nebhasi yonxibelelwano eyedwa, ixabiso liphezulu kune-BMS ye-architecture ephakathi, ngakumbi kwiintambo eziphantsi.

Izimvo ezisasazwayo wanika incam kakuhle isimbo central, nto leyo ngokusebenzisa ibhasi ukusombulula ingxaki izibuko, kunye nokuzinikela IC uye wabona iingenelo, kwaye ngokukhawuleza usungule ibhasi yonxibelelwano kungekho wedwa, ngakumbi ngcono ngokwabo. Ulwakhiwo olusasazwe kancinci, eneneni ulwakhiwo olusembindini lwesibini luye lwaba lolunye loyilo oluqhelekileyo lwe-BMS. Oku kukwahlula icandelo lonke lebhetri kwiimodyuli ezininzi.

Imodyuli nganye isebenzisa i-BMS encinci eyilwe ngechip ezinikeleyo, kwaye emva koko iqhagamshela kumlawuli wokugqibela ngebhasi. I-architecture esasazwa ngokulinganayo igxile kwiinzuzo ze-harness esasazwayo kunye neenzuzo zoyilo oluphakathi, kodwa ngelishwa, ingxaki yokuba i-architecture yangaphambili ayizange isombululwe kwaye ilandelwe, imbalelwano enye kunye nengxaki esebenzayo elinganayo ikhona. Ukuxosha umthombo, imbalelwano enye ukuya kwelinye, ingxaki yokutshintsha i-matrix kwibhalansi esebenzayo, ukusuka kwimida eqhelekileyo yolawulo lwebhetri ye-chip ekhethekileyo, nangona i-chip ekhethekileyo yolawulo lwebhetri iphinda iguquke.

Ngenxa yokuba sisicelo se-multi-brace, kwi-IC enikezelweyo, ishaneli nganye yokukhangela ibhetri kufuneka igqitywe kwangaphambili, kwaye emva koko, umyalelo wesiteshi ngasinye awukwazi ukucinga, kwaye ngoku ubone nayiphi na i-ICs ayikwazi ukuyila umsebenzi onjalo. Ngokufanayo, i-matrix yokutshintsha nayo isuka kwizicelo ezininzi zeentambo, kodwa nangenxa yecandelo lamandla, oku kuyindalo kunye nobuthathaka be-IC, kwaye i-architecture ekhoyo sisizathu sokulinganisela okusebenzayo. Ngoko ke, ukuba intambo ephantsi, akukho mfuneko yokulungelelanisa ngokusebenzayo umsebenzi, onokwenzeka, njengezixhobo zombane, iibhayisikili zombane kunye nezithuthuthu zombane; ekusebenziseni amanqanaba ezithuthi zombane, ngokukodwa umsebenzi wokulinganisa osebenzayo, i-Design BMS kwi-IC ezinikeleyo isengaphezulu.

Ukususela kwimveliso ye-2015, imoto yombane igqibe ngempumelelo ixesha lokungeniswa kweshishini, lilandelwa lixesha lophuhliso. I-BMS ifuna ukusombulula esi sifo ngokukhawuleza, imarike ibiza iimveliso ezintsha, tsiba kuphela kwindlela ekhethekileyo ye-IC, i-BMS innovation party inokukhangela phambili. .

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