发明名称 |
METHOD OF CALCULATING INTERNAL RESISTANCE OF SECONDARY BATTERY FOR VEHICLE |
摘要 |
A current Ibe and a voltage Vbe before a large current discharge in a secondary battery are stored in a memory. Plural voltage-current pairs are detected and stored in the memory during the large current discharge. Next, a regression curve (or a regression line) is obtained based on the plural voltage-current pairs stored in the memory using a well-known method. A discharge current Ip which exceeds a current-sensor detectable range is input in the regression curve to obtain a voltage Vp. A maximum discharge coordinate is set using the discharge current Ip and the voltage Vp. An internal resistance Rin of the secondary battery is calculated based on an inclination of a line that connects the coordinates (Ibe, Vbe) and (Ip, Vp).
|
申请公布号 |
US2008215266(A1) |
申请公布日期 |
2008.09.04 |
申请号 |
US20080034699 |
申请日期 |
2008.02.21 |
申请人 |
NIPPON SOKEN, INC.;DENSO CORPORATION |
发明人 |
MIZUNO SATORU;SAKAI SHOJI;ONO HIROAKI |
分类号 |
H01M10/48;B60R16/04;G01R31/36;G06F19/00;H02J7/00 |
主分类号 |
H01M10/48 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|