Umbuzo ovamile uphakama: ngaphansi kwaziphi izimo lapho i-BMS yebhethri le-lithium-ion isebenza khona ukuvikela ukushaja ngokweqile, futhi iyiphi indlela efanele yokululama kukho?
Ukuvikelwa kokushaja ngokweqile kwamabhethri e-lithium-ion kuqaliswa lapho noma yiziphi izimo ezimbili zaneliswa. Okokuqala, iseli elilodwa lifinyelela i-voltage yalo yokushaja ngokweqile elinganisiwe. Okwesibili, i-voltage yephakethe lebhethri iyonke ihlangabezana nomkhawulo wokushaja ngokweqile olinganisiwe. Isibonelo, amaseli e-lead-acid ane-voltage yokushaja ngokweqile engu-3.65V, ngakho-ke i-BMS ivame ukusetha i-voltage yokushaja ngokweqile yeseli elilodwa ibe ngu-3.75V, ngokuvikelwa okuphelele kwe-voltage kubalwa njengo-3.7V okuphindaphindwe ngenani lamaseli. Kumabhethri e-lithium amathathu, i-voltage yokushaja egcwele ingu-4.2V ngeseli ngalinye, ngakho-ke ukuvikelwa kokushaja ngokweqile kweseli elilodwa le-BMS kusethwe ku-4.25V, kanti isimo sokuvikelwa kwe-voltage iyonke siphindwe izikhathi ezingu-4.2V kunenani lamaseli.
Umbuzo ovame ukubuzwa phakathi kwabasebenzisi: Ingabe ukushiya ibhethri le-EV lishajwe ubusuku bonke (kusukela phakathi kwamabili kuze kube usuku olulandelayo) kuyalimaza ngokuhamba kwesikhathi? Impendulo incike ekusethweni okuthile. Uma ibhethri neshaja kufana nomkhiqizi wemishini yokuqala (i-OEM), asikho isidingo sokukhathazeka - i-BMS inikeza isivikelo esithembekile. Ngokuvamile, i-voltage yokuvikela i-BMS yokushaja ngokweqile ibekwa phezulu kunokukhishwa kweshaja. Lapho amaseli egcina ukuvumelana okuhle (njengakumabhethri amasha), isivikelo se-overcharge ngeke siqaliswe ngemva kokushaja ngokugcwele. Njengoba ibhethri liguga, ukuqina kweseli kuyawohloka, futhi i-BMS iqala ukunikeza isivikelo.
Okuphawulekayo ukuthi kukhona igebe likagesi phakathi kwe-BMS's overcharge trigger voltage kanye nomkhawulo wokubuyisa. Leli banga likagesi eligciniwe livimbela umjikelezo oyingozi: ukusebenza kokuvikela → ukwehla kukagesi → ukukhululwa kokuvikela → ukushaja kabusha → ukuvikela kabusha, okusiza ukwandisa impilo yesevisi yebhethri. Ukuze uthole ukuphepha okuphezulu kanye nokuphila isikhathi eside, umkhuba omuhle kakhulu ukushaja uma kudingeka bese ukhipha ishaja uma ibhethri selishajwe ngokugcwele.
Isikhathi sokuthunyelwe: Disemba 11-2025
