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    • 45. 发明公开
    • Actuator emergency operation
    • 执行器应急操作
    • EP0181763A2
    • 1986-05-21
    • EP85308051.3
    • 1985-11-06
    • WESTINGHOUSE BRAKE AND SIGNAL COMPANY LIMITED
    • Wickham, David John
    • B60T7/00B60T17/00
    • B60T13/74Y10T307/615Y10T307/625
    • @ Electrical circuit configurations are described for the operation of an electrically powered actuator in an emergency to drive the actuator to a predetermined position. In particular the actuator is connected to apply friction brakes of a railway vehicle. The configurations have in common are emergency power circuit connected between an emergency power source and the actuator, means for breaking the power circuit when the actuator reaches the emergency position and latching means to prevent run-back. Preferably and in order to minimise size and weight the emergency power source is of limited capacity, sufficient for, say, two such emergency applications and is recharged from a normal power supply; the recharging circuit being interlocked with the latching means such that the actuator may not be released from the emergency position unless the power source has sufficient charge for at least one further emergency operation.
    • 描述了用于紧急情况下的电动致动器的操作以将致动器驱动到预定位置的电路​​结构。 特别是执行机构被连接以施加铁路车辆的摩擦制动器。 这些配置共有紧急电源电路,其连接在应急电源和致动器之间,当致动器到达紧急位置时断开电源电路的装置和用于防止回退的锁定装置。 优选地并且为了最小化尺寸和重量,应急电源具有有限的容量,足够用于例如两个这样的应急应用并且从正常电源再充电; 再充电电路与锁定装置互锁,使得致动器可以不从紧急位置释放,除非电源具有用于至少一个另外的紧急操作的充足电荷。
    • 50. 发明公开
    • Wheel slip control system
    • 车轮防滑控制系统
    • EP0078655A2
    • 1983-05-11
    • EP82305689.0
    • 1982-10-27
    • WESTINGHOUSE BRAKE AND SIGNAL COMPANY LIMITED
    • Poole, John David
    • B60T8/08B60T8/12B60K41/20B60L3/00
    • B60T8/1705
    • A wheel slip control system particularly for use on a light railway vehicle such as a mass transit car. The outputs (2, 4) of a vehicle acceleration sensor (1) and a wheel acceleration sensor (3) are compared by a comparator (5) to detect onset of wheel slip, either skidding or spinning. The comparator output (6a, 6b) is employed to modify the braking or tractive effect in a sense to eliminate the wheel slip. All braked and driven wheels or axles may be included in the systems and their respective braking/ tractive efforts modified as necessary to balance the acceleration and braking of the vehicle by making maximum use of available adhesion.
    • 特别适用于轻型铁路车辆(如公共交通车)的车轮防滑控制系统。 通过比较器(5)比较车辆加速度传感器(1)和车轮加速度传感器(3)的输出(2,4),以检测打滑或旋转的车轮打滑的开始。 在某种意义上使用比较器输出(6a,6b)来修改制动或牵引效应以消除车轮打滑。 所有制动和驱动的车轮或轮轴都可以包含在系统中,并且根据需要对其各自的制动/牵引力进行修改,以通过最大限度地利用可用的粘附来平衡车辆的加速和制动。