公开(公告)号：US20160190831A1

公开(公告)日：2016-06-30

申请号：US14972967

申请日：2015-12-17

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Shinichiro MORI ,  Junichi KIKUCHI ,  Koji TAMARU

IPC: H02J7/00 ,  B60L11/18

CPC classification number: B60L11/1809 ,  B60L53/00 ,  H02J7/0081

Abstract: A voltage control method for a secondary battery includes: calculating a voltage difference between a first voltage value as an initial voltage of the secondary battery and a second voltage value as a voltage of the secondary battery after being charged by constant-current charging during a predetermined time period; calculating an internal resistance of the secondary battery based on the voltage difference and a value of constant current applied in the constant-current charging; calculating an additional voltage based on the internal resistance and a value of constant current applied during voltage control, and calculating a target voltage by adding the additional voltage to a predetermined required voltage; controlling the voltage by charging the secondary battery with constant current until the target voltage is reached; and determining that the secondary battery is defective when the target voltage is not reached within a predetermined permissible time period while the voltage is controlled.

Abstract translation: 一种用于二次电池的电压控制方法包括：计算作为二次电池的初始电压的第一电压值和作为二次电池的电压的第二电压值之间的电压差，该电压值在预定的 时间段; 基于在恒定电流充电中施加的电压差和恒定电流的值来计算二次电池的内部电阻; 基于所述内部电阻和在电压控制期间施加的恒定电流的值来计算附加电压，以及通过将所述附加电压加到预定的所需电压来计算目标电压; 通过以恒定电流对二次电池充电直到目标电压达到来控制电压; 以及当控制所述电压时在预定的允许时间段内没有达到所述目标电压时，确定所述二次电池是有缺陷的。