Kev xaiv lub lithium Battery Management System (BMS) zoo yog qhov tseem ceeb rau kev ua kom muaj kev nyab xeeb, kev ua tau zoo, thiab lub neej ntev ntawm koj lub roj teeb. Txawm hais tias koj tab tom muab hluav taws xob rau cov khoom siv hluav taws xob, tsheb fais fab, lossis cov kev daws teeb meem khaws cia hluav taws xob, ntawm no yog phau ntawv qhia kom pab koj txiav txim siab tau zoo:
1. Txheeb xyuas cov yam ntxwv ntawm roj teeb
Pib los ntawm kev nkag siab txog koj lub roj teeb cov yam ntxwv tseem ceeb kom ntseeg tau tias sib xws nrog BMS:
- Hom roj teeb
Txheeb xyuas cov tshuaj lom neeg ntawm lub roj teeb lithium:Trinary Lithium (NCM/NCA),LiFePO4 (LFP), lossis lwm yam. Txhua hom muaj cov qauv hluav taws xob tshwj xeeb thiab cov kev cai nyab xeeb.
Piv txwv li: Cov roj teeb lithium peb txheej (3.7V nominal) xav tau kev tiv thaiv overcharge kom raug (≤4.25V), thaum LiFePO4 (3.2V nominal) ua haujlwm tau zoo txog li 3.65V.
- Peev Xwm (Ah)
Sib phim BMStam sim no tas mus li thiab siab tshaj plawsrau koj lub roj teeb lub peev xwm. Cov roj teeb muaj peev xwm siab xav tau cov BMS units uas muaj peev xwm tswj tau tam sim no zoo.
- Qhov Voltage Ntau Yam
Xyuas kom meej tias BMS qhov voltage ntau npaum li cas npog koj lub roj teebnominal voltage,tag nrho cov nqi hluav taws xob, thiabqhov tsawg kawg nkaus tso tawm hluav taws xobCov kab sib txawv tsis sib xws yuav ua rau puas tsuaj lossis txo qis kev ua haujlwm.
Ib lub BMS txhim khu kev qha yuav tsum tiv thaiv thiab ua kom lub roj teeb ua haujlwm zoo dua los ntawm:
- Kev Tiv Thaiv Overcharge
Yuav txiav kev them thaum lub zog hluav taws xob tshaj qhov txwv kev nyab xeeb (piv txwv li, 4.3V rau ternary lithium).
- Kev Tiv Thaiv Kev Tshaj Tawm Ntau Dhau
Nres qhov kev tso tawm ua ntej qhov hluav taws xob poob qis dua qhov tseem ceeb (piv txwv li, 2.5V rau ternary lithium) kom tiv thaiv kev puas tsuaj ntawm lub cell.
- Kev Tiv Thaiv Overcurrent thiab Short-Circuit
Tshawb pom cov hluav taws xob ntau dhau lossis luv luv (lub sijhawm teb: <100μs) kom tiv thaiv kev khiav tawm ntawm thermal.
- Kev Sib Npaug ntawm Cell
Kev sib npaug tsis tu ncuatshem tawm cov zog ntau dhau ua cua sov (pheej yig rau cov pob me me).
Kev sib npaug nquagrov faib zog ntawm cov cell (zoo tagnrho rau cov kab ke loj, ua kom lub neej ntev dua).
- Cov Nta Siab Tshaj Plaws
Kev Soj Ntsuam Xyuas Lub Xeev (SOC): Taug qab qhov muaj peev xwm ntawm lub roj teeb uas tseem tshuav kom raug.
Kev Tswj Kub: Saib xyuas thiab tswj qhov kub ntawm lub cell kom tiv thaiv kev kub dhau.
Kev Sib Txuas Lus: Txhawb nqa CAN bus, UART, lossis Bluetooth rau cov ntaub ntawv tiag tiag thiab kev kuaj mob.
3. Soj Ntsuam Qhov Zoo thiab Kev Ntseeg Tau
Kev nqis peev rau hauv BMS uas lav qhov ruaj khov thiab ua raws li txoj cai:
- Cov Hom Lag Luam Muaj Koob Npe
Xaiv cov chaw tsim khoom uas muaj kev paub dhau los hauv kev tsim qauv thiab daim ntawv pov thawj BMS (piv txwv li, UL, CE, ISO 26262 rau tsheb).
- Tsim Kom Zoo
Qib siabCov ntaub ntawv PCB, kev vuam zoo, thiab cov khoom zoo tshaj plaws (piv txwv li, MOSFETs ua haujlwm tau zoo) ua kom muaj kev ruaj khov thiab kev ua haujlwm thermal.
- Software thiab Algorithms
Cov software BMS siab heev ua rau muaj kev kwv yees SOC raug, kuaj mob qhov txhaum, thiab hloov kho firmware.
4. Sib phim cov kev xav tau ntawm ib puag ncig thiab daim ntawv thov
Kho koj qhov kev xaiv rau cov xwm txheej siv:
- Qhov Loj thiab Kev Sib Koom Ua Ke
Cov chav BMS me me haum rau cov ntawv thov uas muaj qhov chaw txwv, thaum cov qauv tsim modular ua kom yooj yim rau kev nthuav dav rau cov kab ke kev lag luam.
- Kev Tiv Thaiv Kub
Xaiv cov chav BMS uas ntsuas tau rau qhov kub thiab txias heev (piv txwv li, -40 ° C txog 105 ° C) rau kev siv tsheb lossis sab nraum zoov.
- Cov Kev Cai Tshwj Xeeb
Cov kev daws teeb meem BMS uas tiv taus dej (IP67), tiv taus plua plav, lossis tiv taus kev co ua rau muaj kev ntseeg siab hauv cov chaw ib puag ncig hnyav.
Xaus lus
Kev xaiv lub lithium BMS kom raug yuav tsum muaj kev sib npaug ntawm cov lus qhia txog kev siv tshuab, kev tiv thaiv, kev txawj ntse ntawm software, thiab kev hloov pauv ib puag ncig. Lub BMS uas sib phim zoo tsis yog tsuas yog tiv thaiv kev ua tsis tiav xwb tab sis kuj ua kom lub zog siv tau zoo dua thiab ua kom lub roj teeb siv tau ntev dua.
Yog xav tau cov kev daws teeb meem uas haum rau koj, tshawb nrhiav peb cov khoom BMS uas tau ntawv pov thawj uas tsim los rau ntau yam kev siv roj teeb lithium. Tiv tauj peb pab neeg kom nrhiav tau qhov sib phim zoo tshaj plaws rau koj cov kev xav tau!
Lub sijhawm tshaj tawm: Tsib Hlis-04-2025
