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公开(公告)号：US4896090A
公开(公告)日：1990-01-23
申请号：US265377
申请日：1988-10-31
CPC分类号： B60T8/1705 , B60L3/102 , B60L2200/26 , Y02T10/646 , Y02T10/648
摘要： A locomotive propulsion system includes wheelslip control with the following interrelated features: comparing the rotational speeds of the locomotive's separately driven wheels and detecting the highest and lowest; providing a reference speed value indicative of the rotational speed of a wheel that is not slipping; determining a desired maximum difference between the reference speed and a selected one of the detected speeds; deriving a speed error value by summing the reference speed, selected speed, and maximum difference; obtaining a wheelslip correction value which is a function of the speed error value; reducing the magnitude of voltage applied to the locomotive's traction motors in accordance with the correction value.
摘要翻译： 机车推进系统包括具有以下相关特征的滑轮控制：比较机车单独驱动的车轮的转速并检测最高和最低; 提供指示不滑动的车轮的转速的基准速度值; 确定所述参考速度与所选择的一个检测速度之间的期望最大差值; 通过对参考速度，选定速度和最大差值相加得出速度误差值; 获得作为速度误差值的函数的车轮修正值; 根据校正值减小施加到机车牵引电动机的电压的大小。
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公开(公告)号：US6163121A
公开(公告)日：2000-12-19
申请号：US405633
申请日：1999-09-24
申请人： Ajith K. Kumar , Edgar T. Balch
发明人： Ajith K. Kumar , Edgar T. Balch
CPC分类号： B61C15/08
摘要： A method and traction control system for an AC locomotive which separately controls the allowable creep level of each individual axle and optimizes traction performance by minimizing torsional vibration per axle. The traction control system includes a torque maximizer and a torsional vibration detector. The torque maximizer evaluates the change in traction system performance levels and actual creep level of individual axles and determines the desired torque maximizer state for maximizing traction performance of each individual axle. The torque maximizer utilizes digital filtering to minimize control cycle time. The torsional vibration detector digitally processes estimated torque feedback of each traction motor in order to detect an unacceptable level of torsional vibration. The outputs of the torque maximizer and the torsional vibration detector are provided to a creep modulator which processes these inputs in order to control the operating creep level of each locomotive axle. As a result, traction performance is improved while minimizing torsional vibration and operating noise levels due to wheel/rail squeal.
摘要翻译： 一种用于交流机车的方法和牵引力控制系统，其分别控制每个单独轴的允许的蠕变水平，并通过最小化每个轴的扭转振动来优化牵引性能。 牵引力控制系统包括转矩最大化器和扭转振动检测器。 扭矩最大化器评估牵引系统性能水平和单个轴的实际蠕变水平的变化，并确定期望的扭矩最大化器状态，以最大化每个单独轴的牵引性能。 扭矩最大化器利用数字滤波来最小化控制周期时间。 扭转振动检测器数字地处理每个牵引电动机的估计转矩反馈，以便检测不可接受的扭转振动水平。 扭矩最大化器和扭转振动检测器的输出被提供给蠕变调制器，其处理这些输入以便控制每个机车轴的操作蠕变水平。 结果，提高牵引性能，同时最小化由于轮/轨道尖叫引起的扭转振动和操作噪音水平。
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公开(公告)号：US5168416A
公开(公告)日：1992-12-01
申请号：US584566
申请日：1990-09-18
申请人： Ronald B. Bailey , Herbert J. Brown , Myron L. Smith , Edgar T. Balch , Roger D. Huczko , Joseph A. Laukaitis
发明人： Ronald B. Bailey , Herbert J. Brown , Myron L. Smith , Edgar T. Balch , Roger D. Huczko , Joseph A. Laukaitis
CPC分类号： B60L11/123 , B60L3/0061 , B60L3/0069 , B60L3/0092 , B60L3/06 , H02H7/0811 , B60L2200/26 , B60L2250/16 , Y02T10/6217 , Y02T10/646 , Y02T10/648 , Y02T10/7077
摘要： Flashover protection is provided for a locomotive propulsion system including a plurality of d-c traction motors each having a commutator subject to flashovers, a traction alternator having armature and field windings and a rotor driven by a prime mover, a controllable source of excitation current connected to the alternator field, and means including an electric power rectifier for connecting the alternator to the motor commutators. It comprises means for producing a fault signal whenever a flashover occurs in any motor, a solid-state controllable electric valve connected between the excitation current source and the alternator field and having alternative conducting and non-conducting states, and means for changing the valve from conducting to non-conducting states in response to a fault signal being produced, whereupon the magnitude of excitation current in the alternator field is rapidly reduced toward zero and the alternator's output current is correspondingly decreased whenever a flashover occurs.
摘要翻译： 提供了用于机车推进系统的闪络保护，该机车推进系统包括多个直流牵引电动机，每个直流牵引电动机具有经受闪络的换向器，具有电枢和励磁绕组的牵引交流发电机和由原动机驱动的转子，可控的励磁电流源连接到 交流发电机场，以及包括用于将交流发电机连接到电动机换向器的电力整流器的装置。 其包括用于在任何电动机中发生闪络时产生故障信号的装置，连接在励磁电流源和交流发电机电场之间并且具有替代的导通和非导通状态的固态可控电动阀，以及用于将阀从 响应于产生的故障信号而导通到非导通状态，于是交流发电机电场中的励磁电流的大小迅速地向零减小，并且每当发生闪络时交流发电机的输出电流相应地减小。
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公开(公告)号：US4634887A
公开(公告)日：1987-01-06
申请号：US747628
申请日：1985-06-24
CPC分类号： F02D31/007 , B60L11/02 , B60L15/20 , B60L2200/26 , Y02T10/645 , Y02T10/70 , Y02T10/7077 , Y02T10/72 , Y02T10/7275
摘要： The propulsion control system of a diesel-electric locomotive includes means responsive to the rotational speed and the gross horsepower of a locomotive engine for controlling the rate at which traction load is added to the engine, when more load is called for, so that the loading rate will increase (between predetermined minimum and maximum limits) as the product of speed and horsepower increases. The loading rate is also increased in response to the ratio of combustion air to diesel fuel increasing above a predetermined no-smoke threshold.
摘要翻译： 柴油电力机车的推进控制系统包括响应于机车发动机的转速和总马力的装置，用于控制在需要更多负载时将牵引负荷加到发动机的速率，以便负载 随着速度和马力的乘积的增加，速率将增加（在预定的最小和最大极限之间）。 响应于燃烧空气与柴油的比例增加到预定的无烟阈值以上，负载率也增加。
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5.发明授权Method, system and storage medium for determining a vehicle reference speed 有权用于确定车辆参考速度的方法，系统和存储介质公开(公告)号：US06758087B2
公开(公告)日：2004-07-06
申请号：US09842554
申请日：2001-04-26
IPC分类号： B61C1508
CPC分类号： B60L3/10 , B60L2200/26 , B60L2210/20 , G01P3/56 , G01P21/02 , Y02T10/725
摘要： An exemplary embodiment of the invention is a method for determining a reference speed approximating a ground speed of a vehicle having a plurality of axles. The method includes selecting a minimum vehicle speed based on one of the axles having a minimum speed. An axle having a lowest amount of creep is determined and designated as a speed axle. A derived speed from the speed axle is obtained and compensated by subtracting a creep value from the derived speed to obtain a corrected speed. Operating dynamics for the vehicle are determined and a reference speed is determined based on the minimum vehicle speed or the corrected speed in response to the operating dynamics.
摘要翻译： 本发明的示例性实施例是用于确定近似具有多个车轴的车辆的地面速度的参考速度的方法。 该方法包括基于具有最小速度的一个轴选择最小车速。 确定具有最小蠕变量的轴并将其指定为速度轴。 通过从导出的速度减去蠕变值来获得来自速度轴的导出速度，并获得校正速度。 确定车辆的操作动态，并且响应于操作动态，基于最小车速或校正速度来确定参考速度。
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公开(公告)号：US5245495A
公开(公告)日：1993-09-14
申请号：US983499
申请日：1992-11-30
申请人： Ronald B. Bailey , Herbert J. Brown , Myron L. Smith , Edgar T. Balch , Roger D. Huczko , Joseph A. Laukaitis
发明人： Ronald B. Bailey , Herbert J. Brown , Myron L. Smith , Edgar T. Balch , Roger D. Huczko , Joseph A. Laukaitis
CPC分类号： B60L3/0069 , B60L3/0023 , H02H7/0811 , B60L2200/26 , Y02T10/646 , Y02T10/648
摘要： Flashover protection is provided for a locomotive propulsion system including a plurality of d-c traction motors each having a commutator subject to flashovers, a traction alternator having armature and field windings and a rotor driven by a prime mover, a controllable source of excitation current connected to the alternator field, and means including an electric power rectifier for connecting the alternator to the motor commutators. It comprises means for producing a fault signal whenever a flashover occurs in any motor, a solid-state controllable electric valve connected between the excitation current source and the alternator field and having alternative conducting and non-conducting states, and means for changing the valve from conducting to non-conducting states in response to a fault signal being produced, whereupon the magnitude of excitation current in the alternator field is rapidly reduced toward zero and the alternator's output current is correspondingly decreased whenever a flashover occurs.
摘要翻译： 提供了用于机车推进系统的闪络保护，该机车推进系统包括多个直流牵引电动机，每个直流牵引电动机具有经受闪络的换向器，具有电枢和励磁绕组的牵引交流发电机和由原动机驱动的转子，可控的励磁电流源连接到 交流发电机场，以及包括用于将交流发电机连接到电动机换向器的电力整流器的装置。 其包括用于在任何电动机中发生闪络时产生故障信号的装置，连接在励磁电流源和交流发电机电场之间并且具有替代的导通和非导通状态的固态可控电动阀，以及用于将阀从 响应于产生的故障信号而导通到非导通状态，于是交流发电机电场中的励磁电流的大小迅速地向零减小，并且每当发生闪络时交流发电机的输出电流相应地减小。
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