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    • 75. 发明授权
    • Method and system for controlling chopper
    • 控制斩波器的方法和系统
    • US4801855A
    • 1989-01-31
    • US63417
    • 1987-06-18
    • Makoto NohmiEiji Kozu
    • Makoto NohmiEiji Kozu
    • B60L15/28B60L3/10H02P5/16
    • B60L3/106B60L3/10B60L2200/26B60L2220/20B60L2220/30Y02T10/7258Y10S388/902Y10S388/903Y10S388/92Y10S388/93
    • The magnitude of current change for the change of input voltage or for the change of speed of rotation of the shunt motor is utilized, i.e., the shunt characteristics are utilized, and the voltage applied to the motor is limited so that the armature current decreases by an amount that corresponds to the increase in the armature voltage when slipping and to the decrease in the armature voltage when sliding have taken place, thereby to obtain improved adhesion characteristics. For this purpose according to the invention, an electromotive force of the motor is calculated from a motor speed detected by a detector and from a field current of the motor, a voltage drop caused by the motor resistance and the motor current is calculated, a motor voltage is calculated by adding the thus calculated voltage drop to the electromotive force of the motor, and the voltage applied to the motor is limited depending upon the calculated motor voltage.
    • 利用输入电压变化或分流电机转速变化的电流变化幅度,即利用分流特性,限制施加到电动机的电压,使电枢电流减小 对应于当滑动时电枢电压的增加和滑动发生时电枢电压降低的量,从而获得改善的粘附特性。 为此,根据本发明,根据由检测器检测到的电动机转速和电动机的励磁电流来计算电动机的电动势,计算由电动机电阻和电动机电流引起的电压降,电动机 通过将如此计算的电压降加到电动机的电动势上来计算电压,并且根据所计算的电动机电压来限制施加到电动机的电压。
    • 76. 发明授权
    • Electric powered vehicle and method of propelling the same
    • 电动车及其推进方法
    • US4633147A
    • 1986-12-30
    • US719258
    • 1985-04-03
    • Bonne W. PosmaRowland A. Hill
    • Bonne W. PosmaRowland A. Hill
    • B60K1/02B60L3/10B62D11/02B61C15/12
    • B60K1/02B60L3/10B62D11/02
    • An electric powered vehicle or the like includes a first mechanical drive system for a first side of the vehicle and a second mechanical drive system for a second side of the vehicle. A first DC motor and a second DC motor are respectively coupled to the first mechanical drive system and the second mechanical drive system. A source of DC power is on the vehicle. The first DC motor has a first field and a first armature and the second DC motor has a second field and a second armature. The first field, the first armature, the second field, and the second armature are connected in a series circuit with the source of power. A voltage sensing relay across the first armature can detect a high voltage across the first armature to sense a loss of traction of the first mechanical drive system. A switching circuit is employed to disable the first motor from the series circuit in response to the voltage sensing relay. There is also included a method for providing propulsion for an electric powered vehicle when a mechanical drive system at one side thereof experiences a loss of traction.
    • 电动车辆等包括用于车辆的第一侧的第一机械驱动系统和用于车辆的第二侧的第二机械驱动系统。 第一直流电动机和第二直流电动机分别耦合到第一机械驱动系统和第二机械驱动系统。 车载直流电源。 第一直流电动机具有第一电场和第一电枢,第二直流电动机具有第二电场和第二电枢。 第一电场,第一电枢,第二电场和第二电枢连接在与电源的串联电路中。 跨越第一电枢的电压感测继电器可以检测跨越第一电枢的高电压以感测第一机械驱动系统的牵引力的损失。 采用开关电路来响应于电压感测继电器将串联电路的第一电动机禁止。 还包括当其一侧的机械驱动系统遭受牵引力损失时为电动车辆提供推进的方法。
    • 77. 发明授权
    • Slip-limiting control for rail vehicles
    • 铁路车辆限滑控制
    • US4588932A
    • 1986-05-13
    • US650501
    • 1984-09-14
    • Pierre Riondel
    • Pierre Riondel
    • B60L3/10B61C15/08B60T8/00
    • B60L3/106B60L3/10B60L2200/26
    • A method and device for slip-limiting control on a rail vehicle wherein for controlling or limiting slip, it is necessary to determine the actual speed of the rail vehicle. The invention overcomes the problems in traction vehicles such as, for example, locomotives which only have driving wheels and no running wheels, especially if all driving wheels slip simultaneously. For the accurate determination of the vehicle speed, the traction motor current for the associated motor is reduced for a short period, of about 3 s, at the driving wheel which is rearmost in the direction of motion, by means of a slip-reduction signal which is supplied to a slip-limiting controller which also reduces the speed of this driving wheel so that this wheel no longer slips and its peripheral wheel speed is equal to the vehicle speed. During a presettable long-term period of about 25 s, all slip-limiting controllers of the rail vehicle are preset with a speed reference signal (v.sub.ref) having a slight rise in speed so that the peripheral wheel speed of the driving wheel is somewhat greater than the vehicle speed but not great enough for the wheels to spin. A jolt detector is provided for intializing this measure.
    • 一种用于轨道车辆的滑移限制控制的方法和装置,其中为了控制或限制滑移,需要确定轨道车辆的实际速度。 本发明克服了牵引车辆中的问题,例如,仅具有驱动轮和没有行驶车轮的机车,特别是如果所有驱动轮同时滑动。 为了准确地确定车速,用于相关联的电动机的牵引电动机电流在运动方向最后方的驱动轮上通过减速信号减少约3秒的短时间段 其被提供给滑差限制控制器,其也降低了该驱动轮的速度,使得该车轮不再滑动,并且其周轮速度等于车速。 在大约25秒的预设长时间段内,轨道车辆的所有滑移限制控制器都预先设置有速度参考信号(vref),速度参考信号稍微升高,使得驱动轮的周边轮速度稍大 车速不足以使车轮旋转。 提供抖动检测器用于初始化该措施。