Anti-lock braking arrangement for an elevator and method for controlling same
A braking arrangement (21 ) for an elevator arrangement (1 ) is proposed. The braking arrangement (21 ) comprises a speed sensor arrangement (23) for generating an over- speed signal upon determining an over-speed of a moving component (3, 5) of the elevator arrangement (1 ), a hydraulic brake arran...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A braking arrangement (21 ) for an elevator arrangement (1 ) is proposed. The braking arrangement (21 ) comprises a speed sensor arrangement (23) for generating an over- speed signal upon determining an over-speed of a moving component (3, 5) of the elevator arrangement (1 ), a hydraulic brake arrangement (25) for generating a braking action (B) of the moving component (3, 5) upon application of a hydraulic pressure and an actuator arrangement (27) for generating and applying the hydraulic pressure to the hydraulic brake arrangement (25). Furthermore, the braking arrangement comprises a control (29) for controlling the actuator arrangement (27), the control (29) being connected to the speed sensor arrangement (23) and being specifically adapted to, upon receiving the over-speed signal from the speed sensor arrangement (23), initiating an ABS braking process by controlling the actuator arrangement (27) to repeatedly increase and decrease the hydraulic pressure to the hydraulic brake arrangement (25) with a repetition time interval (T |
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