US 12,466,694 B2
Method for operating an elevator
Jaakko Kalliomaki, Helsinki (FI); Jarkko Saloranta, Helsinki (FI); Mikko Puranen, Helsinki (FI); Sakari Mantyla, Helsinki (FI); and Joonas Sorvari, Helsinki (FI)
Assigned to Kone Corporation, Helsinki (FI)
Filed by Kone Corporation, Helsinki (FI)
Filed on Dec. 30, 2020, as Appl. No. 17/138,343.
Claims priority of application No. 20150524 (EP), filed on Jan. 7, 2020.
Prior Publication US 2021/0206597 A1, Jul. 8, 2021
Int. Cl. B66B 1/34 (2006.01); B66B 1/28 (2006.01); B66B 5/02 (2006.01); B66B 7/06 (2006.01); B66B 7/12 (2006.01)
CPC B66B 1/28 (2013.01) [B66B 1/3407 (2013.01); B66B 1/3461 (2013.01); B66B 1/3492 (2013.01); B66B 5/02 (2013.01); B66B 7/06 (2013.01); B66B 7/1215 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for operating an elevator installed in connection with a building, the method comprising:
obtaining building acceleration data using a building acceleration sensor of the building;
determining a movement profile for an elevator car in the elevator using an elevator controller, the elevator configured to cause movement of the elevator car in the elevator according to the movement profile;
calculating a predicted elevator car position of the elevator car in the elevator based on the movement profile;
calculating an estimated rope sway of a hoist rope in the elevator based on the predicted elevator car position and the building acceleration data, the hoist rope coupled to the elevator car and running at least partially around a sheave of the elevator, the sheave is a traction sheave or a compensation sheave;
comparing the estimated rope sway with a threshold value to determine a predicted excessive rope sway at the predicted elevator car position; and
controlling an operation of the elevator in order to counteract the predicted excessive rope sway.