公开(公告)号：US20080185999A1

公开(公告)日：2008-08-07

申请号：US12026251

申请日：2008-02-05

申请人： Yasushi MATSUKAWA ,  Duncan BULLOCK ,  Tetsuya MIZOGUCHI

发明人： Yasushi MATSUKAWA ,  Duncan BULLOCK ,  Tetsuya MIZOGUCHI

IPC分类号： H02J7/00

CPC分类号： H02J7/0075 ,  H01M10/42 ,  H02J7/0077 ,  Y10T307/858

摘要： A power supply device that enables completion of precharging to be accurately determined without increasing manufacturing cost. The power supply device includes a battery pack, a positive main contactor, a precharge contactor, and a precharge resistor. The battery pack supplies DC power to an inverter. A smoothing capacitor is arranged between input terminals of the inverter. The positive main contact disconnects the inverter from a positive electrode of the battery pack. A voltmeter detects the voltage between a negative electrode of the battery pack and a connection node of the precharge contactor and precharge resistor. Voltage detection values taken by the voltmeter immediately before precharging and during precharging are used to determine precharging completion.

摘要翻译： 一种能够在不增加制造成本的情况下准确地确定预充电的电源装置。 电源装置包括电池组，正主接触器，预充电接触器和预充电电阻器。 电池组为变频器提供直流电源。 在逆变器的输入端子之间设置平滑电容器。 正主触点将变频器与电池组的正极断开。 电压表检测电池组的负极与预充电接触器和预充电电阻的连接节点之间的电压。 在预充电之前和预充电期间由电压表采集的电压检测值用于确定预充电完成。