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公开(公告)号：EP1505401A4
公开(公告)日：2007-03-28
申请号：EP03725717
申请日：2003-04-30
Applicant: SONY CORP
Inventor： YAMAZAKI KAZUO , HATAZAWA TSUYONOBU , TOMITA TAKASHI , IKEDA TAMON , NAWA RYUICHI , ISHIKAWA YUUICHI , HORI MASANORI
CPC classification number: G01R31/3679 , G01R31/362 , G01R31/3648 , G01R31/3675
Abstract: A battery capacity calculation methods includes a reference discharge curve calculation step for obtaining a discharge curve as a reference, a correction voltage calculation step for correcting the battery measurement voltage (V1) by a battery resistance component so as to obtain a corrected voltage (V), and a capacity calculation step for calculating the battery discharge capacity from the discharge curve serving as the reference by using the corrected voltage (V). The capacity calculation step has a deterioration index calculation step for calculating a capacity deterioration index (S) as a capacity reduction ratio attributed to battery deterioration. The discharge capacity calculated from the discharge curve as the reference by using the corrected voltage (V) is further multiplied by the capacity deterioration index (S), thereby calculating a discharge capacity.
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公开(公告)号：JP2003329744A
公开(公告)日：2003-11-19
申请号：JP2002139167
申请日：2002-05-14
Inventor： YAMAZAKI KAZUO , HATASAWA TAKENOBU , TOMITA TAKASHI , IKEDA TAMON , NAWA RYUICHI , ISHIKAWA YUICHI , HORI MASANORI
CPC classification number: G01R31/3679 , G01R31/362 , G01R31/3648 , G01R31/3675
Abstract: PROBLEM TO BE SOLVED: To precisely calculate the remaining capacity of a battery regardless of its deteriorated state and measuring conditions.
SOLUTION: A method has a reference discharge curve calculating process for finding a reference discharge curve, a corrected voltage calculating process for finding a corrected voltage V by correcting a measured voltage V1 of the battery with its resistance component, and a capacity calculating process for calculating a discharged capacity from the reference discharge curve by using the corrected voltage V. The capacity calculating process has a deterioration index calculating process for calculating a capacity deterioration index S being a reduction ratio of the capacity caused by the deterioration of the battery. It is favorable that the discharged capacity should be calculated by multiplying the discharged capacity computed from the reference discharge curve by using the corrected voltage V, with the deterioration index S in addition.
COPYRIGHT: (C)2004,JPOAbstract translation: 要解决的问题：为了精确地计算电池的剩余容量，而不管其劣化状态和测量条件如何。 解决方案：一种方法具有用于求出参考放电曲线的参考放电曲线计算处理，通过用电阻分量校正电池的测量电压V1来求出校正电压V的校正电压计算处理和容量计算 用于通过使用校正电压V从参考放电曲线计算放电容量的处理。容量计算处理具有用于计算作为由电池劣化引起的容量的减小率的容量劣化指数S的劣化指数计算处理。 通过将从基准放电曲线计算的放电容量乘以校正电压V与劣化指数S相加来计算放电容量。 版权所有（C）2004，JPO
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