METHOD FOR OPERATING A LIFT SYSTEM, CONTROL SYSTEM, AND LIFT SYSTEM
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United States of America Patent
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Issued Date -
Mar 21, 2019
app pub date -
Jul 7, 2016
filing date -
Jul 7, 2016
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Abstract
A method for operating an elevator installation may be used with elevator installations that have at least two cars in one elevator shaft. A first car may be travelling or configured to travel in a direction of a second car, and the first car may be moved with reference to a travel curve in such a way that a distance between the first car and the second car can be controlled to an adjustable minimum distance. The adjustable minimum distance may be set as a function of a speed of at least one of the first car or the second car. Further, the distance between the first car and the second car can be controlled to the adjustable minimum distance with continuous calculation of a virtual stopping point for the first car, at which virtual stopping point the first car is stoppable with a safety clearance from the second car.
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