首页>
外国专利>
Method for determining remaining capacity of secondary storage battery, method and apparatus for detecting remaining capacity of secondary battery mounted on vehicle using determination result, and terminal for determining remaining capacity of secondary storage battery Method and apparatus for determining slope and intercept used to calculate voltage
Method for determining remaining capacity of secondary storage battery, method and apparatus for detecting remaining capacity of secondary battery mounted on vehicle using determination result, and terminal for determining remaining capacity of secondary storage battery Method and apparatus for determining slope and intercept used to calculate voltage
PPROBLEM TO BE SOLVED: To provide a method and device which calculate correctly the remaining capacity or SOC of a secondary battery. PSOLUTION: First, as for a lead storage battery, the remaining capacity or SOC of which is known, the relational expression between the terminal voltage VSBSOC/SBand the discharge current is required beforehand(S1). VSBSOC/SB=aSBSOC/SBI+bSBSOC/SB. Namely, a first coefficient aSBSOC/SBand a second coefficient bSBSOC/SBin each remaining capacity or SOC are obtained from the data acquired by two sorts of different discharge characteristic examinations. Subsequently, the judgment of the remaining capacity of the actual lead storage battery or SOC is performed (S2). As the method, data table processing is performed about the obtained relational expression(S2a). The discharge current value of the actual battery is measured, and is inputted into the relational expression, so that the terminal voltage VSBSOC/SBis calculated(S2b). The remaining capacity or SOC is determined by using the measured terminal voltage and the calculated terminal voltage(S2c). The determined result is applicable to the determination of the exchange time of the lead storage battery, or the idling stop processing, for example(S3). PCOPYRIGHT: (C)2005,JPO&NCIPI
展开▼
机译：
要解决的问题：提供一种能够正确计算二次电池的剩余容量或SOC的方法和设备。
解决方案：首先，对于已知其剩余容量或SOC的铅蓄电池，事先需要端电压V SOC 与放电电流之间的关系表达式（S1） 。 V SOC = a SOC I + b SOC 。即，从通过两种不同的放电特性检查获得的数据获得每个剩余容量或SOC中的第一系数a SOC 和第二系数b SOC 。随后，执行对实际铅蓄电池或SOC的剩余容量的判断（S2）。作为该方法，对所获得的关系式（S2a）进行数据表处理。测量实际电池的放电电流值，并将其输入到关系表达式中，从而计算出端子电压V SOC （S2b）。剩余容量或SOC通过使用测得的端电压和算出的端电压（S2c）确定。该确定结果可应用于例如确定铅蓄电池的更换时间或怠速停止处理（S3）。
