发明名称 |
Method for battery state-of-health monitoring using battery voltage during vehicle starting |
摘要 |
A method is provided for determining a battery's state-of-health. An initial battery voltage is measured after a first voltage drop during an initiation of an engine cranking phase. A battery voltage is monitored during the remainder of the engine cranking phase. A lowest battery voltage is determined during the remainder of the engine cranking phase. A determination is made if a voltage difference between the lowest battery voltage and the initial battery voltage at the initiation of the engine cranking phase is less than a voltage threshold. A low battery state-of-health is identified in response to the voltage difference being less than the voltage threshold. |
申请公布号 |
US8111037(B2) |
申请公布日期 |
2012.02.07 |
申请号 |
US20080147552 |
申请日期 |
2008.06.27 |
申请人 |
ZHANG XIAODONG;KAPSOKAVATHIS NICK S.;ZHANG YILU;WALTERS DAVID W.;TANG XIDONG;SALMAN MUTASIM A.;GM GLOBAL TECHNOLOGY OPERATIONS LLC |
发明人 |
ZHANG XIAODONG;KAPSOKAVATHIS NICK S.;ZHANG YILU;WALTERS DAVID W.;TANG XIDONG;SALMAN MUTASIM A. |
分类号 |
H02J7/14;G01N27/416;H02J7/00;H04B1/38 |
主分类号 |
H02J7/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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