Wanem Samting Bilong Nau?
Eniwan we i wok wetem BMS i bin lukSOCol riding we i no matjem rilitis. Bateri i soim 30% na foklift i dai wantu tasol. O em i paitim 80% na em i kalap i go stret i go inap tru. Brausim wanem forklift forum na bai yu painim ol tred long "bateri i soim 100% tasol yu no inap stat" o "saddaun long 25% SOC." I save stap olsem sel imbalens, algorithm we i no stret, o ol bug blong BMS. Tasol wanpela samting planti taim ol i no luksave long en: mak bilong nau yet inap pinis.
Putum wan stret resistor long series wetem seket, mesarem voltej drop, aplaem Loa blong Ohm. Ol i kolim dispela resistor olsem wanpela shunt.
EV na indastrial bateri sistem i yusim ol shunt long 25μΩ i go long 100μΩ mak. Bilong wanem i daunbilo tru? Push 600A tru long 0.5mΩ shunt na yu lukluk long 180W bilong hat i go nabaut. Dispela hat i mas go long wanpela hap. Planti prodaksen ikwipmen i gat ol dediket thermal rot long ol sensing asembli i stap nau tasol bilong dil wantaim dispela.
Ol sensor bilong haus i save skelim magnetik fil i kamap long rot bilong ron bilong karent na noken putim i go insait long bikpela seket. Ol i bin wokim i stap longwe long ol narapela. Tasol stretpela pasin i save karim pen na hevi long ol liklik karent-a 1000A-}reit Hall modul we i gat 10A i ken soim planti taim moa asua winim 500A. Planti BMS disain i save yusim Hall olsem bek-ap, wantaim ol shunt i save mekim praimeri sensing.
Pasin bilong nau em i hap bilong piksa tasol. BMS i nidim SOC, we i minim blong integretem karent ova long taem-}coulomb kaontem. Sampling i gat nois na ofset. Ranim longpela taim inap na ol asua i bungim. Ol sistem tru i bungim koulomb kaunting wantaim open- saket voltej kros- sekim, o yusim Kalman filtering. Kipim SOC asua insait long 5% em i wanpela komon mak.
Sel fomesen long fektori i nidim strongpela karent stret winim rantaim BMS. Fomesen karent i afektem SEI leja kwaliti, we i afektem sel konsistensi truaot long batj. Ol floa bilong prodaksen i save yusim ol hai-}lipris shunt wantaim 24{{5}bit ADCs. Lab-grade tes i save yusim ol sensa bilong fluksgate{-ppm-level, tasol i dia tumas.
Wanem wei blong yusum i dipen long aplikesen. Ol forklift i lukim ol mak bilong sampela handet amp long taim bilong apim-BMS i mas lukautim ol dispela spik i no gat ol giaman trip. Ol golf kat i no save pulim planti taim tasol ol inap sindaun nating inap planti mun, olsem na ol i mas skelim liklik self-}}discharge karent i bikpela samting moa.
