Method, elevator control unit, and elevator system for dynamically adjusting a levelling speed limit of an elevator car
AssigneeKone Corporation
InventorsJuha-Matti Aitamurto, Antti Hovi, Ari Jussila, Ari Kattainen
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Abstract
A method for dynamically adjusting a levelling speed limit of an elevator car during a levelling operation includes obtaining an indication that the elevator car is detected to arrive to a zone; obtaining at least one value indicating the speed of the elevator car, in response to detecting that the elevator car arrives to the zone; and dynamically adjusting the levelling speed limit of the elevator car based on the speed of the elevator car. An elevator control unit and a system are provided to perform at least partly the method.
Claims20
A method for dynamically adjusting a levelling speed limit of an elevator car during a levelling operation, the method comprising the steps of:
- obtaining an indication that the elevator car is detected to arrive to a zone;
- obtaining at least one value indicating the speed of the elevator car, in response to detecting that the elevator car is arriving to the zone;
- and
- dynamically adjusting the levelling speed limit of the elevator car based on the speed of the elevator car,
- wherein the speed of the elevator car is determined at a number of points during the levelling operation of the elevator car, and the levelling speed limit is adjusted at each point based on the speed of the elevator car determined at the respective point.
An elevator controller for dynamically adjusting a levelling speed limit of an elevator car during a levelling operation, the elevator control unit comprising:
- at least one processor;
- and
- at least one memory storing at least one portion of computer program code,
- wherein the at least one processor is configured to cause the elevator control unit at least to:
- obtain an indication that the elevator car is detected to arrive to a zone;
- obtain at least one value indicating speed of the elevator car, in response to detecting that the elevator car is arriving to the zone;
- and
- dynamically adjust the levelling speed limit of the elevator car based on the speed of the elevator car,
- wherein the speed of the elevator car is determined at a number of points during the levelling operation of the elevator car, and the levelling speed limit is adjusted at each point based on the speed of the elevator car determined at the respective point.
An elevator system for dynamically adjusting a levelling speed limit of an elevator car during a levelling operation, the elevator system comprising:
- at least one of the following:
- position sensor, drive, acceleration sensor, door zone sensor unit comprising at least one magnetic sensor;
- and
- an elevator controller configured to:
- obtain an indication that the elevator car is detected to arrive to a zone;
- obtain at least one value indicating speed of the elevator car, in response to detecting that the elevator car arrives to the zone;
- and
- dynamically adjust the levelling speed limit of the elevator car based on the speed of the elevator car,
- wherein the elevator controller and the at least one of the following:
- position sensor, drive, acceleration sensor, door zone sensor unit, are communicatively coupled to each other, and
- wherein the speed of the elevator car is determined at a number of points during the levelling operation of the elevator car, and the levelling speed limit is adjusted at each point based on the speed of the elevator car determined at the respective point.
Dependencies are inferred from the claim text.