Wake wazibuza ukuthi kanjaniI-BMSIngabe ingakwazi ukubona ugesi webhethri le-lithium? Ingabe ikhona i-multimeter eyakhelwe ngaphakathi?
Okokuqala, kunezinhlobo ezimbili zezinhlelo zokuphatha ibhethri (i-BMS): izinguqulo ezihlakaniphile nezehadiwe. I-BMS ehlakaniphile kuphela enekhono lokudlulisa ulwazi lwamanje, kuyilapho inguqulo yehadiwe ingenalo.
I-BMS ivame ukuba nesekethe ehlanganisiwe yokulawula (i-IC), izinkinobho ze-MOSFET, izisekethe zokuqapha zamanje, kanye nezisekethe zokuqapha izinga lokushisa. Ingxenye ebalulekile yenguqulo ehlakaniphile yi-IC yokulawula, esebenza njengobuchopho bohlelo lokuvikela. Inesibopho sokuqapha ngesikhathi sangempela kwamandla ebhethri. Ngokuxhuma nesekethe yokuqapha yamanje, i-IC yokulawula ingathola ulwazi ngokunembile mayelana namandla ebhethri. Lapho amandla edlula imikhawulo yokuphepha esethiwe, i-IC yokulawula yenza isinqumo ngokushesha futhi iqalise izenzo zokuvikela ezihambisanayo.
Ngakho-ke, i-current itholakala kanjani?
Ngokuvamile, inzwa yomphumela we-Hall isetshenziselwa ukuqapha ugesi. Le nzwa isebenzisa ubudlelwano phakathi kwamasimu kazibuthe kanye nogesi. Lapho ugesi ugeleza, kukhiqizwa insimu kazibuthe ezungeze inzwa. Inzwa ikhipha isignali ye-voltage ehambisanayo ngokusekelwe emandleni ensimu kazibuthe. Uma i-IC yokulawula ithola lesi signali ye-voltage, ibala usayizi wamanje wangempela isebenzisa ama-algorithms angaphakathi.
Uma ugesi udlula inani lokuphepha elisethwe ngaphambilini, njengogesi odlulayo noma ugesi omfushane, i-IC yokulawula izolawula ngokushesha amaswishi e-MOSFET ukuze inqume indlela yamanje, ivikele ibhethri kanye nohlelo lonke lwesekethe.
Ngaphezu kwalokho, i-BMS ingasebenzisa ama-resistor athile nezinye izingxenye ukusiza ekuqapheni kwamanje. Ngokulinganisa ukwehla kwamandla kagesi ku-resistor, usayizi wamanje ungabalwa.
Lolu chungechunge lwemiklamo yesekethe eyinkimbinkimbi neqondile kanye nezindlela zokulawula konke kuhloswe ukuqapha amandla ebhethri ngenkathi kuvikelwa ezimweni zokusebenzisa amandla ngokweqile. Zidlala indima ebalulekile ekuqinisekiseni ukusetshenziswa okuphephile kwamabhethri e-lithium, ukwandisa impilo yebhethri, kanye nokuthuthukisa ukuthembeka kohlelo lonke lwebhethri, ikakhulukazi ezinhlelweni ze-LiFePO4 nakwezinye izinhlelo zochungechunge lwe-BMS.
Isikhathi sokuthunyelwe: Okthoba-19-2024
