Method and system for diagnosing an arm-shot of a bi-directional DC/DC converter
    3.
    发明授权
    Method and system for diagnosing an arm-shot of a bi-directional DC/DC converter 有权
    用于诊断双向DC / DC转换器的臂射击的方法和系统

    公开(公告)号:US06885173B2

    公开(公告)日:2005-04-26

    申请号:US10331232

    申请日:2002-12-30

    申请人: Young-Kook Lee

    发明人: Young-Kook Lee

    CPC分类号: H02M3/1582 H02M1/32

    摘要: An arm-short diagnostic method for a bi-directional DC/DC converter that includes a buck switching device, a buck diode, a boost switching device, and a boost diode, is presented. The method includes detecting an output current of the bi-directional DC/DC converter, and determining whether the output current is detected in a positive direction. The method also includes maintaining supply of a turn-off gating signal to the boost switching device, and supplying a turn-on gating signal to the buck switching device, if the detected output current is in a positive direction. Finally, the method includes determining whether the output current of the bi-directional DC/DC converter increases in a positive direction, and determining that at least one of the boost switching device and the buck diode is in a short circuit state, if it is determined that the output current of the bi-directional DC/DC converter does not increase in the positive direction.

    摘要翻译: 提出了一种包括降压开关器件,降压二极管,升压开关器件和升压二极管的双向DC / DC转换器的短臂诊断方法。 该方法包括检测双向DC / DC转换器的输出电流,并确定是否在正方向上检测输出电流。 该方法还包括如果检测到的输出电流是正方向,则保持向升压开关装置提供关断门控信号,以及向降压开关装置提供导通选通信号。 最后,该方法包括确定双向DC / DC转换器的输出电流是否以正方向增加,以及确定升压开关装置和降压二极管中的至少一个处于短路状态,如果是 确定双向DC / DC转换器的输出电流在正方向上不增加。

    System and method for controlling power distribution of fuel cell hybrid electric vehicle
    4.
    发明授权
    System and method for controlling power distribution of fuel cell hybrid electric vehicle 有权
    燃料电池混合动力汽车配电控制系统及方法

    公开(公告)号:US06847127B1

    公开(公告)日:2005-01-25

    申请号:US10331229

    申请日:2002-12-30

    申请人: Young-Kook Lee

    发明人: Young-Kook Lee

    摘要: The present invention relates to a system and method for controlling power distribution of a fuel cell hybrid electric vehicle. The system includes a fuel cell, a battery, a DC/DC converter connected to the battery for the input and output of power, an inverter connected to the DC/DC converter and fuel cell, a motor connected to the inverter, and a controller for estimating the required vehicle power. Further the present invention controls power transmission between the fuel cell, the battery, the DC/DC converter, and the inverter. The controller selectively performs control into one of a fuel cell mode, a battery discharge mode, a battery charge mode, and a regeneration mode.

    摘要翻译: 本发明涉及一种用于控制燃料电池混合动力电动车辆的配电的系统和方法。 该系统包括燃料电池,电池,连接到用于输入和输出电力的电池的DC / DC转换器,连接到DC / DC转换器和燃料电池的逆变器,连接到逆变器的电动机和控制器 用于估计所需的车辆功率。 此外,本发明控制燃料电池,电池,DC / DC转换器和逆变器之间的电力传输。 控制器选择性地执行燃料电池模式,电池放电模式,电池充电模式和再生模式之一的控制。