Patent ID: 11905142
Assignee: OTIS ELEVATOR COMPANY
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 20:
21. A method of controlling an elevator system situated in a hoistway of a building, the method comprising:
detecting sway of the building;
determining characteristics of the detected sway including a plurality of building sway frequencies and associated periods of the sway of the building;
determining a relationship between the characteristics of the sway of the building and a configuration of components of the elevator system, wherein the components of the elevator system comprise at least elongated members of the elevator system, and wherein determining the relationship between the characteristics of the sway of the building and the configuration of the elongated members of the elevator system includes
using information regarding building design and building sway modes,
using information regarding the configuration or features of the elongated members,
establishing relationships between sets of characteristics of the sway of the building and resulting sway of the elongated members, and
determining an expected sway of the elongated members based on the relationships; and controlling at least one of position and movement of an elevator car in the hoistway based on the expected sway of the elongated member and based on the determined relationship including using a first control strategy when the determined characteristics comprise a first set of characteristics or a second control strategy when the determined characteristics comprise a second set of characteristics, wherein the first set of characteristics is different than the second set of characteristics and the first control strategy is different than the second control strategy.