| 发明名称 | Apparatus of SOC estimation during plug-in charge mode | ||
| 摘要 | A system and method for estimating parameters of a rechargeable energy storage system during a plug-in charge mode include reading a first measured voltage and a measured current from the rechargeable energy storage system while charging the rechargeable energy storage system during a plug-in charge mode, interrupting the charge to stop current flow to the rechargeable energy storage system for a predetermined period of time, reading a second measured voltage during the charge interrupt, calculating a resistance based on the first measured voltage, the second measured voltage and the measured current, calculating an open circuit voltage of the rechargeable energy storage system based on the resistance, the second measured voltage, the measured current and determining the state-of-charge for the rechargeable energy storage system using the open circuit voltage. | ||
| 申请公布号 | US9354277(B2) | 申请公布日期 | 2016.05.31 |
| 申请号 | US201012916262 | 申请日期 | 2010.10.29 |
| 申请人 | GM Global Technology Operatins LLC | 发明人 | Lin Jian;Tang Xidong;Koch Brian J.;Baraszu Robert C.;Minarcin Monika A.;Patterson Steven A. |
| 分类号 | H02J7/00;H02J7/04;H02J7/16;G01R31/36 | 主分类号 | H02J7/00 |
| 代理机构 | Miller IP Group, PLC | 代理人 | Miller John A.;Miller IP Group, PLC |
| 主权项 | 1. A method for estimating parameters of a rechargeable energy storage system during a plug-in charge mode, said method comprising: reading a first measured voltage and a measured current from the rechargeable energy storage system while charging the rechargeable energy storage system during a plug-in charge mode; interrupting the charge to stop current flow to the rechargeable energy storage system for a predetermined period of time; reading a second measured voltage during the charge interrupt; calculating a resistance based on the first measured voltage, the second measured voltage and the measured current; calculating an open circuit voltage of the rechargeable energy storage system based on the resistance, the second measured voltage, and the measured current; calculating a residual voltage to compensate for an offset due to a limited period of rest relating to the predetermined period of time; calculating an open circuit voltage of the rechargeable energy storage system based on the resistance, the second measured voltage, the measured current and the residual voltage; and determining the state-of-charge for the rechargeable energy storage system using the open circuit voltage. | ||
| 地址 | Detroit MI US | ||