CONTROLLING A DRIVE MOTOR OF AN ELEVATOR INSTALLATION
First Claim
1. An elevator method, comprising:
- determining, for an elevator cage in an elevator installation, a movement profile of the elevator cage for movement of the elevator cage to a destination stopping point position in the elevator installation, the determining being based at least in part on an anticipated slip between a drive pulley and a support coupled to the elevator cage;
detecting a movement of the elevator cage based at least in part on signals of a rotary encoder coupled to the drive pulley or to a drive motor; and
during the movement of the elevator cage, controlling the drive motor based at least in part on the signals of the rotary encoder and the movement profile.
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Accused Products
Abstract
A movement of an elevator cage is detected by an elevator control on the basis of signals of a rotary encoder, coupled with a rotational movement of the drive motor or the drive pulley. Before movement of the cage begins, a movement plot in the form of a trip/speed profile is calculated for travel of the elevator cage from an instantaneous elevator cage position to a destination stopping point position. An anticipated slip between the drive pulley and a support means is included in the calculation of the trip/speed profile, and during the travel of the elevator cage a rotational movement of the drive motor and thus of the drive pulley is controlled by the elevator control in dependence on the calculated trip/speed profile and on signals of the rotary encoder.
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Citations
18 Claims
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1. An elevator method, comprising:
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determining, for an elevator cage in an elevator installation, a movement profile of the elevator cage for movement of the elevator cage to a destination stopping point position in the elevator installation, the determining being based at least in part on an anticipated slip between a drive pulley and a support coupled to the elevator cage; detecting a movement of the elevator cage based at least in part on signals of a rotary encoder coupled to the drive pulley or to a drive motor; and during the movement of the elevator cage, controlling the drive motor based at least in part on the signals of the rotary encoder and the movement profile. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An elevator installation comprising:
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an elevator cage disposed in a shaft; a drive pulley; a support coupled to the elevator cage and to the drive pulley; a rotary encoder coupled to the drive pulley or to a drive motor; and an elevator control unit, the elevator control unit being configured to, receive a movement profile of the elevator cage for a movement of the elevator cage to a destination stopping point position in the shaft, the movement profile being based at least in part on an anticipated slip between the drive pulley and the support, detect a movement of the elevator cage based at least in part on signals of the rotary encoder, and during the movement of the elevator cage, controlling the drive motor based at least in part on the signals of the rotary encoder and the movement profile.
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16. An elevator system component, comprising:
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at least one processor; a memory having stored therein instructions which, when executed by the processor, cause the processor to, determine, for an elevator cage in the elevator installation, a movement profile of the elevator cage for a movement of the elevator cage to a destination stopping point position in the elevator installation, the determining being based at least in part on an anticipated slip between a drive pulley and a support coupled to the elevator cage, detect a movement of the elevator cage based at least in part on signals of a rotary encoder coupled to the drive pulley or to a drive motor, and during the movement of the elevator cage, control the drive motor based at least in part on the signals of the rotary encoder and the movement profile.
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17. Method of controlling a drive motor of an elevator installation, wherein an elevator cage can be moved along a travel path by the drive motor by way of a drive pulley and at least one flexible support and stopped at stopping point positions of a plurality of stopping points, wherein a movement of the elevator cage is detected by an elevator control on the basis of signals of a rotary encoder coupled with a rotational movement of the drive motor or the drive pulley, before the start of travel of the elevator cage a movement course in the form of a trip/speed profile for travel of the elevator cage from a instantaneous elevator cage position to a destination stopping point position is calculated, and anticipated slip between the drive pulley and the support means is included in the calculation of the trip/speed profile and during travel of the elevator cage a rotational movement of the drive motor and thus of the drive pulley is controlled by the elevator control in dependence on the calculated trip/speed profile and on signals of the rotary encoder.
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18. A memory having encoded thereon instructions which, when executed by a processor, cause the processor to perform a method, the method comprising:
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determining, for an elevator cage in the elevator installation, a movement profile of the elevator cage for a movement of the elevator cage to a destination stopping point position in the elevator installation, the determining being based at least in part on an anticipated slip between a drive pulley and a support coupled to the elevator cage; detecting a movement of the elevator cage based at least in part on signals of a rotary encoder coupled to the drive pulley or to a drive motor; and during the movement of the elevator cage, controlling the drive motor based at least in part on the signals of the rotary encoder and the movement profile.
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Specification