Umbuzo oqhelekileyo uvela: phantsi kweziphi iimeko apho i-BMS yebhetri ye-lithium-ion ivuselela ukhuseleko lokutshaja kakhulu, kwaye yeyiphi indlela efanelekileyo yokuchacha kuyo?
Ukhuseleko lokutshaja kakhulu kwiibhetri ze-lithium-ion luqala xa nayiphi na kwezi meko zimbini ifezekisiwe. Okokuqala, iseli enye ifikelela kwi-voltage yayo yokutshaja kakhulu. Okwesibini, i-voltage iyonke yebhetri ihlangabezana nomlinganiselo wokutshaja kakhulu. Umzekelo, iiseli ze-lead-acid zine-voltage engaphezulu ye-3.65V, ngoko ke i-BMS idla ngokuseta i-voltage engaphezulu yeseli enye ukuya kwi-3.75V, kunye nokhuseleko lwe-voltage iyonke olubalwa njenge-3.7V luphindaphindwe ngenani leeseli. Kwiibhetri ze-lithium ezintathu, i-voltage epheleleyo yokutshaja yi-4.2V ngeseli nganye, ngoko ke ukhuseleko lokutshaja kakhulu lweseli enye ye-BMS lumiselwe kwi-4.25V, kwaye imeko yokhuseleko lwe-voltage iyonke yi-4.2V ephindaphindwe ngenani leeseli.
Umbuzo ohlala ubuzwa phakathi kwabasebenzisi: Ngaba ukushiya ibhetri ye-EV itshajiwe ubusuku bonke (ukususela ezinzulwini zobusuku ukuya kusuku olulandelayo) kuyayonakalisa ekuhambeni kwexesha? Impendulo ixhomekeke kulungiselelo oluthile. Ukuba ibhetri kunye netshaja zihambelana nomenzi wezixhobo zokuqala (i-OEM), akukho mfuneko yokukhathazeka - i-BMS inika ukhuseleko oluthembekileyo. Ngokwesiqhelo, i-voltage yokukhusela i-BMS yokutshaja kakhulu ibekwa phezulu kunemveliso yetshaja. Xa iiseli zigcina ulungelelwano oluhle (njengakwiibhetri ezintsha), ukhuseleko lwe-overcharge aluyi kuqaliswa emva kokutshaja ngokupheleleyo. Njengoko ibhetri iguga, ukuhambelana kweseli kuyawohloka, kwaye i-BMS iqala ukubonelela ngokhuseleko.
Okuphawulekayo kukuba, kukho umsantsa wevolthi phakathi kwevolthi ye-BMS's overcharge trigger kunye nomlinganiselo wokubuyisela. Olu luhlu lwevolthi olugciniweyo luthintela umjikelo onobungozi: ukusebenza kokhuseleko → ukuhla kwevolthi → ukukhululwa kokhuseleko → ukuphinda utshaje → ukuphinda ukhusele, okunceda ukwandisa ubomi benkonzo yebhetri. Ukuze kubekho ukhuseleko oluphezulu kunye nexesha elide, eyona ndlela ilungileyo kukutshaja xa kuyimfuneko kwaye ukhulule itshaja xa ibhetri itshaje ngokupheleleyo.
Ixesha leposi: Disemba-11-2025
