ADHESION CONTROL SYSTEM AND METHOD
    4.
    发明申请

    公开(公告)号:US20170320502A1

    公开(公告)日:2017-11-09

    申请号:US15662367

    申请日:2017-07-28

    CPC classification number: B61C17/12 B61C15/107

    Abstract: A system for controlling a consist of rail vehicles or other vehicles includes a control unit electrically coupled to a first rail vehicle in the consist, the control unit having a processor and being configured to receive signals representing a presence and position of one or more tractive effort systems on-board the first vehicle and other rail vehicles in the consist, and a set of instructions stored in a non-transient medium accessible by the processor, the instructions configured to control the processor to create a optimization schedule that manages the use of the one or more tractive effort systems based on the presence and position of the tractive effort systems within the consist.

    METHOD AND APPARATUS FOR DETECTING ALTERNATOR RECTIFIER DIODE SHORT FAULT
    5.
    发明申请
    METHOD AND APPARATUS FOR DETECTING ALTERNATOR RECTIFIER DIODE SHORT FAULT 有权
    用于检测交流整流二极管短路故障的方法和装置

    公开(公告)号:US20160241176A1

    公开(公告)日:2016-08-18

    申请号:US14620218

    申请日:2015-02-12

    CPC classification number: H02P9/48 H02P9/102 Y02E10/725

    Abstract: Methods for detecting a short fault of an alternator rectifier electronic component include sampling a field winding voltage or current signal of an alternator, during operation of the alternator, and determining a fault ripple period at which the alternator field winding signal exceeds a fault threshold. A short fault of an electronic component of a rectifier coupled to the alternator is detected in the event that the fault ripple period closely matches an alternator armature period. Alternatively or additionally, the sampled field winding signal is band pass filtered, and a short fault is detected in the event that an amplitude of the band pass filtered field winding signal exceeds a fault threshold. The methods can be implemented, for example, by an apparatus that includes a hysteresis frequency counter, a frequency comparator, and a countdown timer.

    Abstract translation: 用于检测交流发电机整流器电子部件的短路故障的方法包括在交流发电机的运行期间采样交流发电机的励磁绕组电压或电流信号,以及确定交流发电机励磁绕组信号超过故障阈值的故障纹波周期。 在故障波动周期与交流发电机电枢周期紧密匹配的情况下,检测到耦合到交流发电机的整流器的电子部件的短路故障。 或者或另外,采样的场绕组信号被带通滤波,并且在带通滤波的场绕组信号的幅度超过故障阈值的情况下,检测到短的故障。 这些方法可以例如通过包括滞后频率计数器,频率比较器和倒数计时器的装置来实现。

    METHOD AND SYSTEM FOR RECIPROCATING COMPRESSOR STARTING
    7.
    发明申请
    METHOD AND SYSTEM FOR RECIPROCATING COMPRESSOR STARTING 审中-公开
    压缩机起动方法及系统

    公开(公告)号:US20130280095A1

    公开(公告)日:2013-10-24

    申请号:US13857334

    申请日:2013-04-05

    Abstract: Systems and methods of the invention may overcome a higher than normal starting torque for in a reciprocating, electric motor driven air compressor for a vehicle. A detection component can be configured to detect a stall condition for a reciprocating compressor based on a force from compressed air being compressed into a reservoir of the reciprocating compressor. Based upon the detected stall condition, a controller can reverse direction or increase torque to alleviate the stall condition. In the reverse direction mode, the controller component can change a direction of a piston rotation. In the torque increase mode, the controller increases a number of poles for the motor, a line voltage, or a volt/hertz.

    Abstract translation: 本发明的系统和方法可克服用于车辆的往复式,电动马达驱动的空气压缩机中的高于正常起动转矩。 检测部件可以被配置为基于来自被压缩到往复式压缩机的容器中的压缩空气的力来检测往复式压缩机的失速状态。 基于检测到的失速状态,控制器可以反转方向或增加扭矩以减轻失速状况。 在反方向模式下,控制器部件可以改变活塞旋转的方向。 在转矩提升模式下,控制器增加电机的极数,线路电压或伏特/赫兹。

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