System and method for controlling an AC traction motor without sensing
motor rotation speed
    142.
    发明授权
    System and method for controlling an AC traction motor without sensing motor rotation speed 有权
    用于控制交流牵引电动机而不检测电动机转速的系统和方法

    公开(公告)号:US6104148A

    公开(公告)日:2000-08-15

    申请号:US292429

    申请日:1999-04-15

    IPC分类号: B60L3/10 B01C15/08

    摘要: A processor system and method are provided for providing motor excitation frequency control in a vehicle propelled by AC electric traction motors. The processor system and method allow for computing an excitation frequency signal based on a sum of i) a signal indicative of a weighted average of an estimated rotor speed signal and a measured vehicle speed signal and ii) a compensated slip command signal. Effective wheel slip control is thus provided without requiring sensors for measuring rotational speed of the traction motors.

    摘要翻译: 提供了一种处理器系统和方法,用于在由AC电力牵引电动机驱动的车辆中提供电动机励磁频率控制。 处理器系统和方法允许基于i)指示估计的转子速度信号的加权平均值和测量的车速信号的和的总和来计算激励频率信号,以及ii)补偿的滑动指令信号。 因此,不需要用于测量牵引电动机的转速的传感器来提供有效的车轮滑动控制。

    AC locomotive operation without DC current sensor
    143.
    发明授权
    AC locomotive operation without DC current sensor 失效
    交流机车运行无直流电流传感器

    公开(公告)号:US5998880A

    公开(公告)日:1999-12-07

    申请号:US908259

    申请日:1997-08-07

    摘要: A system and method for controlling operation of a diesel electric traction vehicle of the type including a synchronous generator driven by a diesel engine for producing alternating current (AC) electric power, the AC electric power being converted to direct current (DC) electric power and transferred over a DC link to a plurality of DC to AC inverters, and each of the inverters being coupled to transfer controlled frequency power to at least one AC electric traction motor coupled in driving relationship to at least one wheel-axle set of the vehicle. A computer-based control system controls operation of the engine, generator and inverters in response to a power command signal. The control system computes power supplied by the generator from calculated torque developed by the AC traction motors and electric power losses in the inverters and other circuit elements coupling power from the generator to the motors. The computed generator supplied power is compared to the power command signal and engine operation is adjusted so as to minimize any difference between the commanded power and the computed power.

    摘要翻译: 一种用于控制柴油电动牵引车辆的操作的系统和方法,所述系统和方法包括由用于产生交流(AC)电力的柴油发动机驱动的同步发电机,所述AC电力被转换为直流(DC)电力, 通过DC链路传送到多个DC到AC逆变器,并且每个逆变器被耦合以将受控频率功率传递到与驱动关系耦合到至少一个车轮组的车轮组的至少一个AC电力牵引电动机。 基于计算机的控制系统响应于功率命令信号来控制发动机,发电机和逆变器的操作。 控制系统根据由交流牵引电动机产生的计算转矩和逆变器中的功率损耗以及将来自发电机的功率耦合到电动机的其他电路元件来计算发电机提供的功率。 将计算出的发电机供电功率与功率指令信号进行比较,并调整发动机运行,以便最小化指令功率和计算功率之间的任何差异。

    Controlled stop function for locomotives
    144.
    发明授权
    Controlled stop function for locomotives 失效
    机车控制停止功能

    公开(公告)号:US5992950A

    公开(公告)日:1999-11-30

    申请号:US50295

    申请日:1998-03-30

    摘要: A controlled stop system for an AC electric locomotive includes a braking effort control circuit responsive to a braking command regulating braking effort produced by AC traction motors coupled in driving relationship to wheels of the locomotive. The control circuit is responsive to a vehicle speed signal for adjusting motor operation to maintain braking effort to about zero speed. A filter processes the speed signal before application to the braking effort control circuit such that the control circuit operates as a speed regulator at zero speed to maintain the vehicle in a stopped condition.

    摘要翻译: 用于交流电力机车的控制停止系统包括制动力控制电路,该制动力控制电路响应于调节由驱动关系与机车车轮耦合的AC牵引电机产生的制动力的制动指令。 控制电路响应于车速信号来调节电动机操作,以将制动力保持在大约零速度。 滤波器在施加到制动力控制电路之前处理速度信号,使得控制电路作为零速度的速度调节器操作以将车辆保持在停止状态。

    AC locomotive operation with DC bus current sensor failure
    145.
    发明授权
    AC locomotive operation with DC bus current sensor failure 失效
    交流机车运行与直流母线电流传感器故障

    公开(公告)号:US5646510A

    公开(公告)日:1997-07-08

    申请号:US414899

    申请日:1995-03-31

    IPC分类号: B60L3/00 B60L11/08 H02P9/04

    摘要: A control system for an AC diesel electric locomotive allowing for continued operation of the locomotive even in the instance of failure of current sensors providing current feedback information. The system is coupled to a plurality of DC to AC inverters with each of the inverters being connected for supplying controlled AC power to at least one AC electric traction motor coupled in driving relationship to wheels of the locomotive. The control system controls the power output of the inverters in response to an operator's command and to sensed operating conditions of the locomotive. One of the sensed operating conditions is power output of the converter determined by measuring its voltage and current output, the latter measurement using a series connected current monitor. The system incorporates apparatus for sensing failure of the current monitor and, in response thereto for modifying the control system to substitute a selected value for the sensed power output of the converter.

    摘要翻译: 一种用于交流柴油电力机车的控制系统,即使在提供电流反馈信息的电流传感器故障的情况下也能够继续运行机车。 该系统耦合到多个DC至AC逆变器,其中每个逆变器被连接用于将至少一个AC驱动电动机耦合到机车的车轮上的受控交流电力提供受控的交流电力。 控制系统根据操作人员的指令和感测到的机车的运行状况来控制逆变器的功率输出。 检测到的操作条件之一是通过测量其电压和电流输出来确定转换器的功率输出,后者使用串联连接的电流监视器进行测量。 该系统包括用于感测电流监视器的故障的装置,并且响应于此来修改控制系统以将所选择的值替换为转换器的感测功率输出。

    Integrated friction modification system for a transporation network vechicle
    146.
    发明授权
    Integrated friction modification system for a transporation network vechicle 有权
    用于运输网络传播的综合摩擦改进系统

    公开(公告)号:US09376123B2

    公开(公告)日:2016-06-28

    申请号:US13591561

    申请日:2012-08-22

    摘要: A system includes a vehicle control system, a friction modification unit, and a friction management module. The vehicle control system is configured to obtain a trip plan for the vehicle. The trip plan is based on one or more characteristics of a trip of the vehicle along a route in a transportation network, characteristics of the vehicle, or characteristics of the route along which the vehicle travels. The trip plan designates one or more tractive operations or braking operations. The friction modification unit is configured to modify a friction characteristic of a surface of the route as the vehicle travels on the route. The friction management module is configured to direct the friction modification unit to modify the friction characteristic of the surface of the route based on the trip plan.

    摘要翻译: 系统包括车辆控制系统,摩擦修正单元和摩擦管理模块。 车辆控制系统被配置为获得车辆的行程计划。 旅行计划基于沿着交通网络中的路线,车辆特征或车辆行驶的路线的特征的车辆行程的一个或多个特征。 行程计划指定一个或多个牵引操作或制动操作。 所述摩擦修正单元构造成随着所述车辆在所述路线上的行驶而改变所述路线的表面的摩擦特性。 摩擦管理模块被配置为基于行程计划来引导摩擦修改单元改变路线表面的摩擦特性。

    Thermal management system and method
    148.
    发明授权
    Thermal management system and method 有权
    热管理系统及方法

    公开(公告)号:US08720344B2

    公开(公告)日:2014-05-13

    申请号:US13219954

    申请日:2011-08-29

    IPC分类号: B61C5/02

    摘要: A system includes an interior duct, a blower, a vent coupling, and a secondary duct. The interior duct is fluidly coupled with the inlet and with an energy storage device disposed in a vehicle. The blower draws cooling fluid received through the inlet and through the interior duct to cause a first portion of the cooling fluid to flow over and/or through the energy storage device. The vent coupling directs the first portion of the cooling fluid that flowed over and/or through the energy storage device into a vented area. The secondary duct directs a second portion of the cooling fluid from the interior duct into the vent coupling to mix with the first portion of the cooling fluid after the first portion of the cooling fluid flows over and/or through the energy storage device.

    摘要翻译: 系统包括内部管道,鼓风机,排气联接器和次级管道​​。 内部管道与入口流体耦合,并且设置在车辆中的能量存储装置。 鼓风机抽出通过入口接收的冷却流体并通过内部管道,使冷却流体的第一部分流过和/或通过能量存储装置。 排气联接器将流过和/或通过能量存储装置的冷却流体的第一部分引导到排气区域。 次级管道将冷却流体的第二部分从内部管道引导到通气联接器中,以在冷却流体的第一部分流过和/或通过能量存储装置之后与冷却流体的第一部分混合。

    Control assembly and control method for supplying power to electrified rail vehicles
    149.
    发明授权
    Control assembly and control method for supplying power to electrified rail vehicles 有权
    电气化轨道车辆供电控制装配和控制方法

    公开(公告)号:US08684150B2

    公开(公告)日:2014-04-01

    申请号:US12815996

    申请日:2010-06-15

    IPC分类号: B60M3/00 B60M3/04 B60M3/06

    CPC分类号: B60M3/00

    摘要: A control assembly includes a monitoring module and a switching module. The monitoring module determines a load demand of a first rail vehicle traveling along a track, wherein the first rail vehicle is supplied with electric current from a plurality of power sources over a conductive pathway extending along the track. The switching module is communicatively coupled with the monitoring module and is joined with a switch controller disposed between the power sources and the conductive pathway. The switching module directs the switch controller to change which of the power sources supply the electric current to the first rail vehicle over the conductive pathway based on the load demand.

    摘要翻译: 控制组件包括监控模块和切换模块。 监测模块确定沿着轨道行驶的第一轨道车辆的负载需求,其中第一轨道车辆在沿着轨道延伸的导电路径上从多个电源被提供电流。 开关模块与监控模块通信耦合,并与设置在电源和导电路径之间的开关控制器连接。 开关模块引导开关控制器,以根据负载需求改变哪个电源在导电路径上向第一轨道车辆提供电流。

    Vehicle suspension control system and method
    150.
    发明授权
    Vehicle suspension control system and method 有权
    车辆悬架控制系统及方法

    公开(公告)号:US08677909B2

    公开(公告)日:2014-03-25

    申请号:US13492610

    申请日:2012-06-08

    IPC分类号: B61C15/14

    CPC分类号: B61C15/04 B61F3/06

    摘要: Methods and systems are provided for a vehicle having a plurality of axles and a lift mechanism configured to dynamically transfer weight from one axle to another. In one example, the method comprises, responding to an operating condition by adjusting the lift mechanism to provide a determined amount of lift, and in response to vehicle braking, a vehicle stall risk, poor infrastructure conditions, and/or a high vehicle penalty, reducing the determined amount of lift.

    摘要翻译: 为具有多个轴的车辆提供了方法和系统,以及构造成将重量从一个轴动态地传递到另一个轴的提升机构。 在一个示例中,该方法包括通过调整升降机构以提供确定量的升力来响应于操作状态,并且响应于车辆制动,车辆失速风险,基础设施条件差和/或高车辆损坏, 减少确定的电梯数量。