Sensor and drive motor learn run for elevator systems

Patent metadata

Field	Value
Publication number	US-10787340-B2
Application number	US-201715619871-A
Country	US
Kind code	B2
Filing date	Jun 12, 2017
Priority date	Jun 13, 2016
Publication date	Sep 29, 2020
Grant date	Sep 29, 2020

Abstract

A method of operating an elevator system for a learn run sequence including the steps of moving, using a linear propulsion system, an elevator car through a lane of an elevator shaft at a selected velocity; detecting, using a sensor system, the location of the elevator car when it moves through the lane; controlling, using a control system, the elevator car, the control system being in operable communication with the elevator car, the linear propulsion system, and the sensor system; and determining, using the control system, a location of each of the car state sensors relative to each other within the lane in response to at least one of a travel time of the elevator car, a velocity of the elevator car, a position of the elevator car, and a height of the elevator car.

First claim

What is claimed is:

1. A method of operating an elevator system for a learn run sequence, the method comprising:
moving, using a linear propulsion system, a first elevator car through a first lane of an elevator shaft at a selected velocity by co-acting a first part mounted in the elevator lane with a second part mounted to the elevator car;
detecting, using a sensor system, a location of the first elevator car when it moves through the lane by detecting a plurality of sensed elements disposed on the elevator car using a plurality of car state sensors disposed within the lane;
controlling, using a control system, the first elevator car; and
determining, using the control system, a location of each of the plurality of car state sensors relative to each other within the first lane in response to at least one of a travel time of the first elevator car, a velocity of the first elevator car, a position of the first elevator car, and a height of the first elevator car.

2. The method of claim 1 , further comprising:
determining, using the control system, at least one of a location, a length, and a phasing of one or more motor segments mounted in the first lane of the elevator shaft in response to a back electromotive force of the one or more motor segments.

3. The method of claim 2 , further comprising:
configuring one or more associated drives of the one or more motor segments in response to the location of the one or more motor segments.

4. The method of claim 1 , further comprising:
determining, using the plurality of car state sensors, a location of the first elevator car and a second elevator car disposed in the first lane of the elevator shaft.

5. The method of claim 1 , wherein:
determining, using the plurality of car state sensors, a location of a second elevator car disposed in a second lane of the elevator shaft.

6. An elevator system comprising:
a linear propulsion system configured to move a first elevator car through a first lane of an elevator shaft at a selected velocity, the linear propulsion system comprising:
a first part mounted in the first lane of the elevator shaft; and
a second part mounted to the first elevator car, the second part being configured to co-act with the first part to impart movement to the first elevator car;
a sensor system configured to detect a location of the first elevator car when it moves through the first lane, the sensor system comprising;
a plurality of sensed elements disposed on the first elevator car; and
a plurality of car state sensors disposed within the first lane, the plurality of car state sensors being configured to detect the sensed element when the first elevator car is in proximity to the respective car state sensor;
a control system configured to control the first elevator car, the control system being in operable communication with the first elevator car, the linear propulsion system, and the sensor system, wherein the control system is configured to determine a location of each of the plurality of car state sensors relative to each other within the first lane in response to at least one of a travel time of the first elevator car, a velocity of the first elevator car, a position of the first elevator car, and a height of the first elevator car.

7. The elevator system of claim 6 , wherein:
the first part comprises one or more motor segments and one or more associated drives; and
the second part comprises one or more permanent magnets.

8. The elevator system of claim 7 , wherein the control system is configured to determine at least one of a location, a length, and a phasing of each of the one or more motor segments in response to a back electromotive force of the one or more motor segments.

9. The elevator system of claim 8 , wherein each of the one or more associated drives is configured in response to the location of the one or more motor segments.

10. The elevator system of claim 6 , further comprising a second elevator car disposed in the first lane of the elevator shaft as the first elevator car, wherein the plurality of car state sensors are configured to determine a location of the first elevator car and the second elevator car.

11. The elevator system of claim 6 , wherein:
the plurality of car state sensors define a plurality of first car state sensors disposed with a first lane, the elevator system further comprising:
a second elevator car disposed in a second lane of the elevator shaft; and
a plurality of second car state sensors disposed within the second lane configured to determine a location of the second elevator car.

12. A computer program product tangibly embodied on a computer readable medium, the computer program product including instructions that, when executed by a processor, cause the processor to perform operations comprising:
moving, using a linear propulsion system, a first elevator car through a first lane of an elevator shaft at a selected velocity by co-acting a first part mounted in the elevator lane with a second part mounted to the elevator car;
detecting, using a sensor system, a location of the first elevator car when it moves through the lane by detecting a plurality of sensed elements disposed on the elevator car using a plurality of car state sensors disposed within the lane;
controlling, using a control system, the first elevator car; and
determining, using the control system, a location of each of a plurality of car state sensors relative to each other within the first lane in response to a travel time of the first elevator car, a velocity of the first elevator car, a position of the first elevator car, and a height of the first elevator car.

13. The computer program product of claim 12 , wherein the operations further comprise:
determining, using the control system, at least one of a location, a length, and a phasing of one or more motor segments mounted in the first lane of the elevator shaft one or more motor segments in response to a back electromotive force of the one or more motor segments.

14. The computer program product of claim 13 , wherein the operations further comprise:
configuring one or more associated drives of the one or more motor segments in response to the location of the motor segment.

15. The computer program product of claim 12 , wherein:
determining, using a plurality of car state sensors, a location of the first elevator car and a second elevator car disposed in the first lane of the elevator shaft.

16. The computer program product of claim 12 , wherein:
determining, using the plurality of car state sensors, a location of a second elevator car disposed in a second lane of the elevator shaft.

Assignees

• Otis Elevator Co

Inventors

• Ginsberg David
• Krishnamurthy Shashank
• Xing Lei
• Geng Penghe
• Gupta Ankit Anand
• Jadhav Yogesh Parmod
• Goudra Basavanagouda
• Gurukumar Pramod Mandikal

Classifications

• B66B1/40

  and for correct levelling at landings · CPC title

• B66B1/3492 Primary

  Position or motion detectors or driving means for the detector (B66B1/40, B66B1/50 take precedence; length measuring G01B; speed measuring G01P) · CPC title

• B66B9/00 Primary

  Kinds or types of lifts in, or associated with, buildings or other structures (characterised by control systems B66B1/00; apparatus for raising or lowering persons on stages of theatres A63J5/12) · CPC title

• B66B1/18

  with means for storing pulses controlling the movements of several cars or cages {(B66B1/2458 takes precedence)} · CPC title

• B66B5/0018

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