Method and an elevator system for performing a synchronization run of an elevator car
AssigneeKone Corporation
InventorsAri Jussila, Toni Hirvonen, Ari Kattainen, Antti Hovi
Life of this patent
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Abstract
A method for performing a synchronization run for an elevator car stopped between floors—upon initiating the synchronization run, driving the elevator car at a low speed in order to detect a first magnet of the elevator shaft, detecting the first magnet of the elevator shaft, comparing the identification code of the detected first magnet to stored pre-information in order to identify the detected first magnet, in response to identification of the first magnet, generating a control signal to the elevator car to travel up to an elevator rated speed, and driving an elevator car with an elevator rated speed.
Claims17
A method for performing a synchronization run of an elevator car stopped between floors, the method comprising:
- upon initiating the synchronization run, driving the elevator car at a low speed in an elevator shaft,
- detecting a first magnet fixed to the elevator shaft,
- comparing an identification code of the detected first magnet to stored pre-information to identify the detected first magnet,
- in response to identification of the detected first magnet, generating a control signal to the elevator car to raise elevator speed,
- continuously obtaining pulse position information of the elevator car, and
- defining absolute position information of the elevator car by adding a predefined correction value to the obtained pulse position information of the elevator car, wherein the predefined correction value indicates drift between the obtained pulse position information of the elevator car and actual pulse position of the elevator car.
A method of performing a synchronization run of an elevator car stopped between floors of an elevator shaft, the method comprising:
- driving the elevator car at a first speed to detect a first magnet from a plurality of magnets fixed to the elevator shaft;
- comparing an identification code of the detected first magnet with stored pre-information to identify a magnet from among the plurality of magnets that corresponds to the detected first magnet;
- driving the elevator car at a second speed to detect a second magnet from the plurality of magnets fixed to the elevator shaft;
- comparing an identification code of the detected second magnet with the stored pre-information to identify a magnet from among the plurality of magnets that corresponds to the detected second magnet;
- obtaining pulse position information of the magnet that corresponds to the detected first magnet and pulse position information of the magnet that corresponds to the detected second magnet from the stored pre-information;
- determining a pulse position distance between the detected first magnet and the detected second magnet;
- comparing the pulse position distance to a first distance between the magnet that corresponds to the detected first magnet and the magnet that corresponds to the detected second magnet to provide a comparison result, the first distance obtained based on the stored pre-information;
- and
- generating a control signal to raise elevator speed based on the comparison result.
Dependencies are inferred from the claim text.