Method for operating an elevator control system

Patent metadata

Field	Value
Publication number	US-9745170-B2
Application number	US-201415038103-A
Country	US
Kind code	B2
Filing date	Nov 13, 2014
Priority date	Nov 21, 2013
Publication date	Aug 29, 2017
Grant date	Aug 29, 2017

Abstract

A method for operating an elevator control system for controlling and monitoring the movements of at least one elevator car when the elevator car approaches individual floors in a building, and in the process stops at a respective floor in a prescribed stopping position, the method including, in conjunction with a floor stop, determining an overall error in the form of a deviation between an actual position of the elevator car and a position of the elevator car assumed as the current position. The elevator control system generates service signals based on a statistical acquisition of several values for the overall error, and/or wherein the overall error is used to ascertain a derivative value, which is taken into account along with the current or stopping position during a comparison between the current position and stopping position performed by the elevator control system for approaching the respective stopping position.

First claim

The invention claimed is:

1. A method for operating an elevator control system for controlling and monitoring movements of at least one elevator car, wherein the at least one elevator car approaches individual floors in a building under control of the elevator control system and stops at a respective floor in a prescribed stopping position, the method comprising the steps of:
in conjunction with a floor stop of the at least one elevator car at one of the floors, determining an overall error as a deviation between an actual position of the at least one elevator car and a position of the at least one elevator car assumed as a current position; and
generating from the elevator control system at least one service signal based on a statistical acquisition of a plurality of values of the overall error associated with a plurality of stops at the one floor.

2. The method according to claim 1 including using the overall error to ascertain a derivative value, and taking into account the derivative value along with the current position during a comparison between the current position and a stopping position performed by the elevator control system for approaching the one floor.

3. The method according to claim 2 including ascertaining the derivative value for each of the floors of the building based on the overall error for the respective floor.

4. The method according to claim 2 including ascertaining at least two derivative values based on respective ones of the overall error for the one floor being a first floor-specific derivative value for upward movement prior to the floor stop and a second floor-specific derivative value for downward movement prior to the floor stop.

5. The method according to claim 2 including ascertaining at least four derivative values based on the respective ones of the overall error for at least several of the floors being a first floor-specific derivative value for an upward movement prior to the floor stop and an upward movement after the floor stop, a second floor-specific derivative value for a downward movement prior to the floor stop and a downward movement after the floor stop, a third floor-specific derivative value for an upward movement prior to the floor stop and a downward movement after the floor stop, and a fourth floor-specific derivative value for a downward movement prior to the floor stop and an upward movement after the floor stop.

6. The method according to claim 2 wherein the elevator control system reads out the derivative value floor-specifically from a look-up table.

7. A digital storage medium with non-transitory electronically readable control signals that interact with the elevator control system to implement the method according to claim 1 .

8. A control program product with program code means for performing the method according to claim 1 while the elevator control system executes the program code means with a processing unit of the elevator control system.

9. An elevator control system with a processing unit in which the control program product according to claim 8 is loaded for executing the program code means is executed by the processing unit during operation of the elevator control system.

Assignees

• Inventio Ag

Inventors

• Roussel Frank Olivier

Classifications

• B66B5/0037

  Performance analysers · CPC title

• B66B5/0025 Primary

  for maintenance or repair · CPC title

• B66B5/0018

  Devices monitoring the operating condition of the elevator system · CPC title

• B66B1/40

  and for correct levelling at landings · CPC title

• B66B1/36

  Means for stopping the cars, cages, or skips at predetermined levels · CPC title