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1. (WO2001002211) SYSTEM FOR INDUCTIVE TRANSFER OF POWER, COMMUNICATION AND POSITION SENSING TO A GUIDEWAY-OPERATED VEHICLE

Pub. No.:    WO/2001/002211    International Application No.:    PCT/US2000/018402
Publication Date: Fri Jan 12 00:59:59 CET 2001 International Filing Date: Tue Jul 04 01:59:59 CEST 2000
IPC: B60L 5/00
B60L 13/00
B60L 13/06
B60L 15/00
B61B 13/08
Applicants: MAGNEMOTION, INC.
THORNTON, Richard, D.
PERREAULT, Brian, M.
CLARK, Tracy, M.
Inventors: THORNTON, Richard, D.
PERREAULT, Brian, M.
CLARK, Tracy, M.
Title: SYSTEM FOR INDUCTIVE TRANSFER OF POWER, COMMUNICATION AND POSITION SENSING TO A GUIDEWAY-OPERATED VEHICLE
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.