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    • 7. 发明授权
    • System and method for dealing with ground fault conditions that can arise in an electrical propulsion system
    • 用于处理电力推进系统中可能出现的接地故障状况的系统和方法
    • US07562945B2
    • 2009-07-21
    • US11782239
    • 2007-07-24
    • Mark Alan LinebachAjith Kuttannair KumarBret Dwayne WordenJeremy T. McGarryScott Joseph Zarella
    • Mark Alan LinebachAjith Kuttannair KumarBret Dwayne WordenJeremy T. McGarryScott Joseph Zarella
    • B60T8/34
    • B60L9/005B60L2200/26
    • A method and system is provided for detecting and performing diagnostics regarding an incipient ground fault that may occur in an electrical propulsion system of a traction vehicle, such as a locomotive, transit vehicle, or off-highway vehicle. The method allows providing a first ground connection for the electrical propulsion system. This first ground connection forms a grounding path generally used by the electrical propulsion system during normal operation. The method further allows providing a second ground connection for the electrical propulsion system. This second ground connection forms a grounding path selectively usable in lieu of the first ground connection. A control strategy is defined for switching between the first ground connection and the second ground connection. A respective leakage current associated with at least one of the first and second ground connections may be monitored. Switching between the first and second ground connections may be controlled based on the monitored leakage current associated with at least one of the first and second ground connections.
    • 提供了一种方法和系统,用于检测和执行可能在诸如机车,过境车辆或越野车辆的牵引车辆的电推进系统中可能发生的初始接地故障的诊断。 该方法允许为电推进系统提供第一接地连接。 该第一接地连接形成在正常操作期间通常由电推进系统使用的接地路径。 该方法还允许为电推进系统提供第二接地连接。 该第二接地连接形成可选择地用于代替第一接地连接的接地路径。 定义了在第一接地连接和第二接地连接之间切换的控制策略。 可以监视与第一和第二接地连接中的至少一个相关联的相应泄漏电流。 可以基于与第一和第二接地连接中的至少一个相关联的所监视的泄漏电流来控制第一和第二接地连接之间的切换。
    • 8. 发明申请
    • System and Method for Modification of a Baseline Ballast Arrangement of a Locomotive
    • 机车基准镇流器布置改造系统及方法
    • US20090031916A1
    • 2009-02-05
    • US11833858
    • 2007-08-03
    • Ajith Kuttannair KumarBret Dwayne Worden
    • Ajith Kuttannair KumarBret Dwayne Worden
    • B61C11/00F16F1/00
    • B61C15/06B61F3/04B61F5/36
    • A system and method for modification of a baseline ballast arrangement of a locomotive having an overall tractive effort rating based on symmetrical distribution of weight and driving torque applied by the locomotive to the respective axles of the locomotive. The system includes a locomotive truck comprising an un-powered first axle and a powered second axle. The system also includes a first suspension assembly configured to apply to the first axle a first portion of a locomotive weight and a second suspension assembly configured to apply to the second axle a second portion of the locomotive weight different from the first portion. An amount of locomotive weight allocated from the first axle to the second axle allows modification of a baseline ballast arrangement by reducing an amount of ballast in the baseline ballast arrangement corresponding to the amount of weight allocated from the first axle to the second axle.
    • 一种用于修改机车的基准镇流器布置的系统和方法,其具有基于对称重量分布和由机车施加到机车的相应轴的驱动转矩的总牵引力等级。 该系统包括一个包括未动力第一轴和动力第二轴的机车。 该系统还包括第一悬挂组件,其被配置为将机车重物的第一部分和第二悬架组件施加到第一轴上,第二悬架组件被配置为向第二轴施加不同于第一部分的机车重物的第二部分。 从第一车轴分配给第二车轴的机车重量允许通过减少基准镇流器布置中对应于从第一车轴分配给第二车轴的重量的量来调节基准镇流器布置。