US 12,441,585 B2
Elevator system with method of position detection of a car
Henri Wenlin, Helsinki (FI); Juha Panula, Helsinki (FI); Oskari Perälä, Helsinki (FI); Niko Forsström, Helsinki (FI); Sami Janhunen, Helsinki (FI); Juha-Matti Aitamurto, Helsinki (FI); and Tarvo Viita-aho, Helsinki (FI)
Assigned to KONE CORPORATION, Helsinki (FI)
Filed by KONE Corporation, Helsinki (FI)
Filed on Dec. 29, 2020, as Appl. No. 17/136,732.
Claims priority of application No. 20150907 (EP), filed on Jan. 9, 2020.
Prior Publication US 2021/0214188 A1, Jul. 15, 2021
Int. Cl. B66B 5/00 (2006.01); B66B 1/34 (2006.01); B66B 11/02 (2006.01); B66B 15/02 (2006.01); F16H 55/36 (2006.01); G01D 5/244 (2006.01)
CPC B66B 5/0031 (2013.01) [B66B 1/3407 (2013.01); B66B 1/3461 (2013.01); B66B 1/3492 (2013.01); B66B 5/0025 (2013.01); B66B 11/02 (2013.01); B66B 15/02 (2013.01); F16H 55/36 (2013.01); G01D 5/244 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a rope pulley of an elevator system, the rope pulley being a free rotating pulley around which a hoisting rope of the elevator system is guided, wherein the free pulley is mounted to a car sling of an elevator car of the elevator system;
an encoder attached to the rope pulley, the encoder measuring the rotation movement of the pulley as movement data: and
a controller communicatively connected to the encoder, the controller receiving the movement data from the encoder and processing the movement data to caculate position of the elevator car in a hoistway of the elevator system,
wherein the controller controls movement of the elevator car on the basis of the calculated position.