Patent application number | Description | Published |
20100065378 | ELEVATOR SYSTEM WITH MULTIPLE CARS IN A SINGLE HOISTWAY - Controlling the movement of elevator cars ( | 03-18-2010 |
20100065381 | SWAY MITIGATION IN AN ELEVATOR SYSTEM - An elevator system ( | 03-18-2010 |
20100294598 | DYNAMIC COMPENSATION DURING ELEVATOR CAR RE-LEVELING - An exemplary method of controlling elevator car position includes determining that an elevator car required re-leveling. Elevator car dynamics information associated with a current position of the elevator car is determined. A gain for controlling operation of a motor responsible for moving the elevator car for the re-leveling is adjusted based on the determined elevator car dynamics information. | 11-25-2010 |
20100314202 | ELEVATOR DISPATCHING CONTROL FOR SWAY MITIGATION - An elevator system ( | 12-16-2010 |
20110073414 | ELEVATOR MOTION PROFILE CONTROL - An exemplary device for controlling an elevator car motion profile includes a controller ( | 03-31-2011 |
20110233004 | ELEVATOR CAR POSITIONING USING A VIBRATION DAMPER - An exemplary method of controlling elevator car position includes determining that an elevator car requires re-leveling and determining whether a vibration damper is activated. A gain for controlling operation of a motor responsible for moving the elevator car for the re-leveling is adjusted if the vibration damper is activated. | 09-29-2011 |
20120125720 | Rope Sway Mitigation Via Rope Tension Adjustment - A rope sway mitigation device for an elevator system includes a rope tension adjuster connected to a plurality of ropes operably connected to an elevator car. The rope tension adjuster is configured to adjust a tension of at least one individual rope of the plurality of ropes thereby mitigating excitation of natural frequencies of the plurality of ropes during sway of at least one component of the elevator system and or a building in which the elevator system is located. Further disclosed is an elevator system including a rope sway mitigation device and a method of rope sway mitigation in an elevator system. | 05-24-2012 |
20130133983 | ELEVATOR SYSTEM WITH ROPE SWAY DETECTION - An exemplary elevator system includes a first mass that is moveable within a hoistway. A second mass is moveable within the hoistway. A plurality of elongated members couple the first mass to the second mass. At least one damper is positioned to selectively contact at least one of the elongated members if sway occurs. A sensor is associated with the damper. The sensor detects contact between the damper and the at least one of the elongated members. A controller adjusts at least one aspect of elevator system operation responsive to the detected contact. | 05-30-2013 |
20130277152 | FRICTIONAL DAMPER FOR REDUCING ELEVATOR CAR MOVEMENT - An exemplary device for use in an elevator system includes at least one friction member that is selectively moveable into a damping position in which the friction member is useful to damp movement of an elevator car associated with the device. A solenoid actuator has an armature that is situated for vertical movement. The armature moves upward when the solenoid is energized to move the friction member into the damping position. The armature mass urges the armature in a downward vertical direction causing the friction member to move out of the damping position when the solenoid is not energized. | 10-24-2013 |