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1. (US20140266036) Apparatus and method for detecting foreign object in wireless power transmitting system

Office : United States of America
Application Number: 14213923 Application Date: 14.03.2014
Publication Number: 20140266036 Publication Date: 18.09.2014
Grant Number: 09423439 Grant Date: 23.08.2016
Publication Kind : B2
IPC:
G01R 29/08
H02J 7/02
B60L 11/18
H02J 5/00
H04B 5/00
B60L 3/04
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
29
Arrangements for measuring or indicating electric quantities not covered by groups G01R19/-G01R27/135
08
Measuring electromagnetic field characteristics
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
7
Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
02
for charging batteries from ac mains by converters
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
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
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
5
Near-field transmission systems, e.g. inductive loop type
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
3
Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration, power consumption
04
Cutting-off the power supply under fault conditions
Applicants: HANRIM POSTECH CO., LTD.
Inventors: Chun Kil Jung
Byong Uk Hwang
Agents: Stein IP, LLC
Priority Data: 10-2013-0028169 15.03.2013 KR
Title: (EN) Apparatus and method for detecting foreign object in wireless power transmitting system
Abstract: front page image
(EN)

An apparatus and method for detecting a foreign object in a wireless power transmitting system are provided. In a case in which a foreign object is not detected prior to charging, an attempt to detect a foreign object detection during charging is performed, and when a foreign object is not detected while a power signal is being received, power is limited based on a temperature sensor.


Also published as:
JP2014183731CN104052164