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    • 1. 发明公开
    • Lift brake control method and apparatus
    • Verfahren und Vorrichtung zur Steuerung einer Aufzugbremse。
    • EP0130750A1
    • 1985-01-09
    • EP84304233.4
    • 1984-06-22
    • Grossi, AlfredoGrossi, Ricardo
    • Grossi, AlfredoGrossi, Ricardo
    • B66B1/32
    • B66B1/285B66B1/32
    • The invention controls the braking of a lift (35), stopping it exactly at a selected floor stop level (23) independently of initial speed (34) and load conditions, optimizing travel time and security. Braking is activated at a preestablished distance (34) from the floor level (23) when the lift cabin (35) trips a reference sensor (39, 41). From there on, the real time speed (V) of the lift is compared with a theoretical value to generate a signal controlling the braking power of the reversed driver-motor (47). The theoretical value is determined exclusively from a preset table (45) on the basis of the remaining distance (D) to the floor level (23), unlike some prior art system which use time for the control variable. The remaining distance (D) and real time speed data (V) are obtained from a single transducer consisting of a perforated disc (55) coupled to the motor (46) shaft and a optoelectronic circuit (59) which emits a pulse for each unitary distance (D) travelled by the lift (35).
    • 本发明控制升降机(35)的制动,与初始速度(34)和负载条件无关地精确地停在选定的地板停止水平(23),优化行驶时间和安全性。 当提升舱(35)跳闸参考传感器(39,41)时,制动在与地板水平面(23)的预定距离(34)下被激活。 从那里,升降机的实时速度(V)与理论值进行比较,以产生控制反向驱动器电动机(47)的制动功率的信号。 与使用时间为控制变量的现有技术系统不同,理论值仅基于预设表(45),基于剩余距离(D)到楼层(23)而确定。 剩余的距离(D)和实时速度数据(V)从单个换能器获得,该单个换能器由耦合到马达(46)轴的多孔盘(55)和发射每个单位的脉冲的光电子回路(59)组成 电梯行驶距离(D)(35)。