Elevator system and method for optimizing advanced door opening

EP4665668A1Pending Publication Date: 2025-12-24KONE OYJ
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Patent Information

Application Number
EP2023704982
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-02-13
Publication Date
2025-12-24

AI Technical Summary

Technical Problem

Elevators with advanced door opening functions often create a dangerous vertical step between the car floor and landing floor due to inaccuracies in door opening timing, which can be hazardous for passengers.

Method used

An elevator system with a positioning system and controller that adjusts the advanced door opening starting point based on real-time car and landing floor position differences, using sensors and a predefined motion profile to ensure accurate door alignment and minimize the step height, thereby optimizing door opening and reducing waiting times.

Benefits of technology

The system effectively prevents tripping hazards and optimizes door-to-door times by automatically adjusting the door opening position for each landing, ensuring safe and efficient passenger access.

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Abstract

An elevator system comprising an elevator shaft (1); one or more landings (30) provided with landing floors (32); an elevator car (10) comprising a car door (11) and a car floor (12) and adapted to transfer passengers and / or cargo in the shaft; a hoisting machine (5) operable to drive the car; a positioning system (20) configured to provide an indication of a car position in the shaft; a door operator (13) configured to open or close the car door (11) in combination with an adjacent landing door (31); at least one door sensor (14) indicating that an opening of the car door / adjacent landing door combination (11 / 31) has advanced to a predefined point; a controller (50) configured to obtain information from the positioning system (20) and from the door sensor (14), and to generate a door opening request for the door operator (13), when the car (10) approaching a destination landing (30) has arrived at an ADO starting point; and to adjust the ADO starting point for the particular landing (30), if the car position deviates from a predetermined value range at the time when the opening of the car door / adjacent landing door combination (11 / 31) has advanced to the predefined point. A method for optimizing elevator advanced door opening.
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