发明名称 |
METHOD AND APPARATUS FOR ESTIMATING SOC OF A BATTERY |
摘要 |
A method of determining a state-of-charge for a battery is provided. A startup state-of-charge of the battery is determined as a function of a present open circuit voltage measurement for a present ignition startup, at least one open circuit voltage observation of a previous ignition startup, and a current draw integration over a time period from a previous ignition startup event to a present ignition startup event. A run state-of-charge change of the battery is determined for an ignition key-on operation. The run state-of-charge change comprises a difference between the present open circuit voltage measurement and the at least one previous open circuit voltage observation, and is determined in response to of a current draw integration over a respective period of time. The state-of-charge of the battery is calculated based on a function of the startup state-of-charge and the run state-of-charge change of the battery.
|
申请公布号 |
US2012072144(A1) |
申请公布日期 |
2012.03.22 |
申请号 |
US20100887644 |
申请日期 |
2010.09.22 |
申请人 |
ZHANG YILU;SHIN KWANG-KEUN;TANG XIDONG;SALMAN MUTASIM A.;GM GLOBAL TECHNOLOGY OPERATIONS, INC. |
发明人 |
ZHANG YILU;SHIN KWANG-KEUN;TANG XIDONG;SALMAN MUTASIM A. |
分类号 |
G01R31/36 |
主分类号 |
G01R31/36 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|