Kev ntsuas qhov tseeb tam sim no hauv Battery Management Systems (BMS) txiav txim siab thaj tsam kev nyab xeeb rau cov roj teeb lithium-ion hla lub tsheb hluav taws xob thiab kev teeb tsa lub zog. Cov kev tshawb fawb kev lag luam tsis ntev los no qhia tau tias ntau dua 23% ntawm cov teeb meem roj teeb thermal tshwm sim los ntawm calibration drift hauv kev tiv thaiv circuits.
BMS tam sim no calibration ua kom muaj qhov tseem ceeb rau kev tshaj tawm, tshaj tawm, thiab kev tiv thaiv luv luv ua haujlwm raws li tsim. Thaum ntsuas qhov tseeb degrades, roj teeb tuaj yeem ua haujlwm dhau qhov kev nyab xeeb ntawm lub qhov rais - uas ua rau thermal khiav tawm. Cov txheej txheem calibration muaj xws li:
- Baseline ValidationSiv cov ntawv pov thawj multimeter los txheeb xyuas cov kev siv tam sim no tiv thaiv BMS nyeem ntawv. Cov cuab yeej ua haujlwm qib qib calibration yuav tsum ua tiav ≤0.5% kam rau ua.
- yuam kev CompensationKho lub rooj tsav xwm kev tiv thaiv lub firmware coefficients thaum tsis sib xws tshaj cov chaw tsim khoom tshwj xeeb. Automotive-qib BMS feem ntau xav tau ≤1% qhov sib txawv tam sim no.
- Stress-Test VerificationSiv simulated load cycles los ntawm 10% -200% rated muaj peev xwm lees paub calibration stability nyob rau hauv lub ntiaj teb no tiag tiag tej yam kev mob.
"Uncalibrated BMS zoo li lub rooj zaum uas tsis paub txog kev tawg," hais tias Dr. Elena Rodriguez, tus kws tshawb fawb txog roj teeb ntawm Munich Technical Institute. "Kev ntsuas txhua xyoo tam sim no yuav tsum tsis muaj kev sib tham rau kev siv hluav taws xob siab."
Cov kev coj ua zoo tshaj plaws suav nrog:
- Siv qhov chaw tswj qhov kub thiab txias (± 2 ° C) thaum calibration
- Validating Hall sensor alignment ua ntej hloov
- Documenting pre/post-calibration tolerances for audit trails
Cov qauv kev nyab xeeb thoob ntiaj teb suav nrog UL 1973 thiab IEC 62619 tam sim no tswj hwm cov ntaub ntawv ntsuas kev ntsuas rau cov roj teeb hluav taws xob xa tawm. Cov chaw kuaj thib peb tshaj tawm 30% cov ntawv pov thawj sai dua rau cov tshuab nrog cov ntaub ntawv txheeb xyuas qhov tseeb.
Post lub sij hawm: Aug-08-2025
