公开(公告)号：US12190027B2

公开(公告)日：2025-01-07

申请号：US17265435

申请日：2019-08-27

Applicant: GS Yuasa International Ltd.

Inventor： Yosuke Okabe ,  Shigeki Yamate

IPC: G06F30/20 ,  G06F111/10 ,  G06F119/06

Abstract: A development support device, a terminal device, a development support method, and a computer program are provided. A receiving unit that receives a simulation condition of a power storage device from a terminal device after user authentication of the terminal device, a simulation execution unit that simulates behavior of the power storage device based on the received simulation condition, and a transmission unit that transmits a simulation result by the simulation execution unit to the terminal device are included.

公开(公告)号：US10371757B2

公开(公告)日：2019-08-06

申请号：US15407879

申请日：2017-01-17

Applicant: GS Yuasa International Ltd.

Inventor： Yohei Tao ,  Shigeki Yamate

IPC: G01R31/36 ,  G01R31/389 ,  G01R31/367 ,  G01R31/385 ,  G01R31/392 ,  H01M10/48 ,  H02J7/00 ,  H01M10/42

Abstract: A post-deterioration performance estimating apparatus wherein a post-deterioration performance value indicates performance of an energy storage device. The apparatus includes a post-deterioration performance estimator is configured to electronically estimate the post-deterioration performance value at a deterioration point using (1) a relation between a cumulative operating period and a resistance value, (2) a relation between the resistance value and energy storage capacity, and (3) the cumulative operating period at the deterioration point. Alternatively, the post-deterioration performance estimator is configured to electronically estimate the post-deterioration performance value at a deterioration point using (1) a relation between an equilibrial capacity decreased amount, (2) a kinetic capacity decreased amount, and (3) a cumulative operating period at the deterioration point.

公开(公告)号：US09983269B2

公开(公告)日：2018-05-29

申请号：US14917797

申请日：2014-08-11

Applicant: GS Yuasa International Ltd.

Inventor： Yohei Tao ,  Shigeki Yamate

IPC: G01N27/416 ,  G01R31/36 ,  H01M10/0525 ,  H01M10/42

CPC classification number: G01R31/3662 ,  G01R31/3651 ,  G01R31/3679 ,  H01M10/0525 ,  H01M10/4207

Abstract: A life estimating apparatus estimating a residual life that is of a usable accumulated residual period of an energy storage device, the life estimating apparatus includes: a relational expression acquisition unit that acquires a relational expression, in which a resistance value of a DC resistance or an AC resistance of the energy storage device at an accumulated use period elapsed time point that is of an accumulated value of a use period of the energy storage device is given by an expression including a term of a function of the accumulated use period; and a residual life estimating unit that estimates the residual life of the energy storage device using the acquired relational expression. When a value in which the resistance value in the relational expression is differentiated by the accumulated use period twice becomes a positive value, the relational expression acquisition unit sets the accumulated use period to a relational expression acquisition period, and acquires the relational expression obtained from a relationship between the resistance value and the accumulated use period up to the relational expression acquisition period elapsed time point.

公开(公告)号：US20150301123A1

公开(公告)日：2015-10-22

申请号：US14648657

申请日：2013-10-22

Applicant: GS YUASA INTERNATIONAL LTD.

Inventor： Yohei Tao ,  Shigeki Yamate

IPC: G01R31/36

CPC classification number: G01R31/392 ,  B60L3/0046 ,  B60L58/16 ,  B60Y2200/91 ,  B60Y2200/92 ,  B60Y2400/112 ,  G01R31/367 ,  G01R31/385 ,  G01R31/389 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/48 ,  H01M2220/20 ,  H02J7/00 ,  H02J7/0047 ,  Y02E60/122 ,  Y02T10/7011

Abstract: A performance deterioration detecting apparatus detects an initial state of sudden deterioration in performance of an energy storage device as a performance deterioration start state, and includes: a first acquiring unit configured to acquire a first maximum variation amount as a maximum value of a capacity variation amount that is a degree of variation in current carrying capacity relative to variation in voltage of the charged or discharged energy storage device, regarding a capacity-voltage property at a first time point, indicating relation between the capacity variation amount and the voltage; a second acquiring unit configured to acquire a second maximum variation amount as a maximum value of the capacity variation amount regarding the capacity-voltage property at a second time point after the first time point; and a performance deterioration determiner configured to determine that the energy storage device is in the performance deterioration start state at the second time point if a variation amount ratio as a ratio of the second maximum variation amount to the first maximum variation amount exceeds a predetermined value.

Abstract translation: 性能劣化检测装置检测作为性能劣化开始状态的能量存储装置的性能突然劣化的初始状态，并且包括：第一获取单元，被配置为获取第一最大变化量作为容量变化量的最大值 相对于充电或放电能量存储装置的电压变化，载流量相对于第一时刻的容量电压特性的变化程度，表示容量变化量与电压之间的关系; 第二获取单元，被配置为获取第二最大变化量作为与第一时间点之后的第二时间点的电容电压特性相关的容量变化量的最大值; 以及性能劣化确定器，被配置为如果作为所述第二最大变化量与所述第一最大变化量的比率的变化量比超过预定值，则确定所述能量存储装置在所述第二时间点处于所述性能劣化开始状态。