发明名称 |
Charging and discharging device to increase battery temperature by controlling ripple current |
摘要 |
A charging and discharging device includes a switching circuit, an input of which is connected to a power supply, the switching circuit adjusting an output current IB to a power storing unit connected to an output of the switching circuit, and a control unit configured to generate an ON/OFF signal DGC to the switching circuit. The control unit includes a temperature-rise control unit configured to separately generate, based on a signal BTMP equivalent to the temperature of the power storing unit, a control signal FC for adjusting a ripple component of the output current IB and a control signal OFS for adjusting a non-ripple component of the output current IB and generates the ON/OFF signal DGC based on the control signal FC and the control signal OFS and outputs the ON/OFF signal DGC to the switching circuit. |
申请公布号 |
US9520733(B2) |
申请公布日期 |
2016.12.13 |
申请号 |
US201113978426 |
申请日期 |
2011.01.07 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
Kitanaka Hidetoshi;Yoshioka Shoji;Hatanaka Keita |
分类号 |
B60L11/18;H02J7/00;B60L3/00;B60L9/00;H01M10/44;B60L11/14;B60L11/00;H01M10/052;H01M10/30;H01M10/34 |
主分类号 |
B60L11/18 |
代理机构 |
Buchanan Ingersoll & Rooney PC |
代理人 |
Buchanan Ingersoll & Rooney PC |
主权项 |
1. A charging and discharging device mounted on an electric vehicle, the charging and discharging device comprising:
a switching circuit, an input of which is connected to a power supply, the switching circuit adjusting an output current to a power storing unit connected to an output of the switching circuit; and a control unit configured to generate an ON/OFF signal to the switching circuit, wherein the control unit includes a temperature-rise control unit configured to generate, based on a signal equivalent to a temperature of the power storing unit and a signal equivalent to speed of the electric vehicle, a control signal for adjusting a ripple component of the output current or a control signal for adjusting a time varying component of the output current, the control unit generating the ON/OFF signal based on the control signal and outputting the ON/OFF signal to the switching circuit, wherein
the temperature-rise control unit comprises at least one of:
a current-limiting-signal generating unit configured to generate a current limiting signal for adjusting magnitude of a non-ripple component of the output current, based on a maximum value and a minimum value of the output current including a ripple component of a detection signal of the output current; anda voltage limiting signal for adjusting magnitude of the non-ripple component of the output current, based on a maximum value and a minimum value of an output voltage including a ripple component of a detection signal of the output voltage. |
地址 |
Chiyoda-Ku, Tokyo JP |