公开(公告)号：US20150127281A1

公开(公告)日：2015-05-07

申请号：US14534259

申请日：2014-11-06

Applicant: DENSO CORPORATION

Inventor： Yoshikazu KUSANO ,  Hisashi UMEMOTO ,  Naomi AWANO ,  Manabu YAMADA

IPC: G01R31/36 ,  G06N99/00

CPC classification number: G01R31/3648 ,  G01R31/367 ,  G01R31/382 ,  G06N20/00

Abstract: A battery characteristics learning apparatus is provided for calculating learning values of circuit constants of an equivalent circuit of a rechargeable battery. The apparatus includes: (1) means for acquiring values of terminal voltage of the battery sensed by voltage-sensing means and values of current of the battery sensed by current-sensing means and storing the acquired values in time series; (2) means for determining, based on the acquired values of the current, whether there has occurred a predetermined change in the current; and (3) means for calculating, when it is determined that the predetermined change has occurred, the learning values of the circuit constants based on those values of the terminal voltage and the current which are acquired at sampling time points or during sampling periods, each of the sampling time points and the sampling periods being set according to a corresponding one of time constants defined by the circuit constants.

Abstract translation: 提供一种用于计算可再充电电池的等效电路的电路常数的学习值的电池特性学习装置。 该装置包括：（1）用于获取由电压感测装置感测的电池的端子电压的值和由电流感测装置感测的电池的电流值并且以时间序列存储所获取的值的装置; （2）用于基于所获取的电流值确定当前是否发生预定变化的装置; 和（3）用于当确定发生了预定变化时计算基于在采样时间点或采样周期期间获得的端电压和电流值的电路常数的学习值的装置，每个 的采样时间点和采样周期根据由电路常数定义的相应的一个时间常数来设置。