System for inductive transfer of power, communication and position sensing to a guideway-operated vehicle
US6499701B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2000 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Jul 3, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T90/16
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Inductive transfer methods and structures combine, in a single system, at least two of the three functions of transferring power, communicating data, and sensing position with a vehicle on a guideway. A set of conductors is installed on the guideway to inductively couple a multiplicity of diverse signals with a corresponding set of conductors on the vehicle. The vehicle may be moving or stationary, and signals may be coupled in one or both directions. Coupling is effected without direct electrical contact, through a common region or gap, and the structures provide suitable and precise air gap control for the conductors effecting coupling of each signal. In addition, the windings are arranged with a topology and/or symmetry to cancel crosstalk between different signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.