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1. (US20160218567) Wireless power transfer device with foreign object detection, system, and method for performing the same

Office : United States of America
Application Number: 15088082 Application Date: 31.03.2016
Publication Number: 20160218567 Publication Date: 28.07.2016
Grant Number: 09929605 Grant Date: 27.03.2018
Publication Kind : B2
IPC:
H02J 50/60
B60L 11/18
H01F 38/14
H02J 5/00
H02J 50/12
H04B 5/00
[IPC code unknown for H02J 50/60]
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
L
PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
11
Electric propulsion with power supplied within the vehicle
18
using power supplied from primary cells, secondary cells, or fuel cells
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
F
MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
38
Adaptations of transformers or inductances for specific applications or functions
14
Inductive couplings
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
J
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
5
Circuit arrangements for transfer of electric power between ac networks and dc networks
[IPC code unknown for H02J 50/12]
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
5
Near-field transmission systems, e.g. inductive loop type
CPC:
B60L 11/182
B60L 11/1833
B60L 11/1846
B60L 11/1848
B60L 2210/10
B60L 2210/30
B60L 2210/40
B60L 2240/36
H01F 38/14
H02J 5/005
H02J 50/12
H02J 50/60
H04B 5/0037
H04B 5/005
Y02T 10/7005
Y02T 10/7072
Y02T 10/7216
Y02T 10/7241
Y02T 90/121
Y02T 90/122
Y02T 90/125
Y02T 90/127
Y02T 90/128
Y02T 90/14
Y02T 90/163
Y02T 90/169
Y04S 30/14
Applicants: Sony Corporation
Inventors: Hiroaki Nakano
Osamu Kozakai
Shinji Komiyama
Kenichi Fujimaki
Agents: Michael Best & Friedrich LLP
Priority Data: 2012-141203 22.06.2012 JP
Title: (EN) Wireless power transfer device with foreign object detection, system, and method for performing the same
Abstract: front page image
(EN)

Methods and apparatus for detecting the presence of undesirable foreign matter in a region between a wireless power transmission apparatus and a power reception apparatus are described. First and second detection methods, based on different detection schemes, may be used to detect and distinguish the presence of foreign matter from misalignment during power transfer operation method may be used while power is supplied to the load.


Also published as:
CN104365028EP2865101US20150171633CN105946611CN106100155US20180006505
US20180294679WO/2013/190809