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    • 8. 发明申请
    • METHODS AND APPARATUS FOR UPDATING A FUEL GAUGE AND ESTIMATING STATE OF HEALTH OF AN ENERGY STORAGE CELL
    • 用于更新燃料计量和估计储能细胞健康状态的方法和设备
    • WO2017151525A1
    • 2017-09-08
    • PCT/US2017/019770
    • 2017-02-27
    • UNIVERSITY OF HAWAII
    • DUBARRY, MatthieuDEVIE, Arnaud
    • G01R31/36
    • G01R31/367G01R31/3835G01R31/3842G01R31/392
    • In one aspect, an embodiment of this invention comprises an apparatus for updating an active fuel gauge of a battery cell. The apparatus comprises a memory, a sensor, and a processor. The memory stores data regarding an active fuel gauge of the battery cell based on a first voltage and state of charge (SOC) relationship. The processor receives first second, and third resting voltage measurements at different times. The processor calculates differences in capacity between pairs of the resting voltage measurements based on the first voltage and state of charge (SOC) relationship. When the differences are equal the reference capacity- difference, the processor identifies an estimate of a remaining capacity of the battery cell corresponding with the active fuel gauge. When the differences are not equal to the reference capacity difference, the processor updates the active fuel gauge based on an identified second voltage and SOC relationship.
    • 在一个方面,本发明的实施例包括用于更新电池单元的有源电量计的装置。 该装置包括存储器,传感器和处理器。 存储器基于第一电压和充电状态(SOC)关系存储关于电池单元的有源电量计的数据。 处理器在不同时间接收第一和第二静止电压测量值。 处理器基于第一电压和充电状态(SOC)关系计算静止电压测量值对之间的电容差。 当差值等于参考容量差值时,处理器识别对应于有源电量计的电池单元的剩余容量的估计值。 当差值不等于参考容量差值时,处理器根据识别的第二电压和SOC关系更新有效燃油表。