Kodi munayamba mwadzifunsapo momwe aBMSKodi mungazindikire kuchuluka kwa batire ya lithiamu? Kodi pali multimeter yomangidwa mmenemo?
Choyamba, pali mitundu iwiri ya Battery Management Systems (BMS): mitundu yanzeru ndi ya Hardware. Ndi BMS yanzeru yokha yomwe imatha kutumiza zidziwitso zamakono, pomwe mtundu wa Hardware sutero.
BMS nthawi zambiri imakhala ndi control integrated circuit (IC), masiwichi a MOSFET, mabwalo owunika apano, ndi mabwalo owunikira kutentha. Chigawo chachikulu cha mtundu wanzeru ndi IC yowongolera, yomwe imakhala ngati ubongo wachitetezo. Ili ndi udindo woyang'anira nthawi yeniyeni ya batri yamakono. Polumikizana ndi dera loyang'anira pano, IC yowongolera imatha kupeza zambiri za batri. Pomwepo ikadutsa malire otetezedwa, IC yowongolera imapanga chigamulo mwachangu ndikuyambitsa njira zodzitetezera.
Ndiye, kodi madzimadzi amadziwika bwanji?
Nthawi zambiri, sensa ya Hall effect imagwiritsidwa ntchito kuyang'anira zamakono. Sensa iyi imagwiritsa ntchito mgwirizano pakati pa maginito ndi maginito. Pamene panopa ikuyenda, mphamvu ya maginito imapangidwa mozungulira sensor. Sensa imatulutsa chizindikiro chofananira chamagetsi kutengera mphamvu ya maginito. IC yowongolera ikalandira siginecha yamagetsi iyi, imawerengera kukula komwe kulipo pogwiritsa ntchito ma aligorivimu amkati.
Ngati zamakono zimaposa mtengo wachitetezo wokonzedweratu, monga wowonjezerapo kapena wafupipafupi, IC yolamulira idzawongolera mofulumira masinthidwe a MOSFET kuti adule njira yomwe ilipo, kuteteza batire ndi dongosolo lonse lozungulira.
Kuphatikiza apo, BMS itha kugwiritsa ntchito zopinga ndi zida zina kuti zithandizire pakuwunika komwe kulipo. Poyesa kutsika kwamagetsi pa resistor, kukula kwapano kumatha kuwerengedwa.
Mndandanda wamapangidwe ovuta komanso olondola ozungulira ndi njira zowongolera zonse zimangoyang'anira batire pomwe mukuziteteza kuzinthu zomwe zimachitika mopitilira muyeso. Amagwira ntchito yofunika kwambiri pakuwonetsetsa kuti mabatire a lithiamu akugwiritsidwa ntchito moyenera, kukulitsa moyo wa batri, komanso kukulitsa kudalirika kwa batire yonse, makamaka pamapulogalamu a LiFePO4 ndi machitidwe ena amtundu wa BMS.
Nthawi yotumiza: Oct-19-2024
