Position determining system for multicar ropeless elevator system
US10689226B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2016 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Jan 31, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B9/003
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elevator car travels in a lane (113, 115, 117) of an elevator shaft (111). A linear propulsion system imparts force to the car (214). The system includes a first part (116) mounted in the lane of the shaft and a second part (118) mounted to the elevator car configured to co-act with the first part to impart movement to the car. Car state sensors (360a-c) are disposed in the lane and determine a state space vector of the car within the lane. A sensed element (364) on the car is sensed by the plurality of car state sensors when the car is in proximity to the respective car state sensor. A control system (225) applies an electrical current to at least one of the first part and the second part and the plurality of car state sensors communicate with the control system and the linear propulsion system to provide state space vector data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.