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1. (US20150002166) Method for detecting foreign objects in an induction charging device

Office : United States of America
Application Number: 14318323 Application Date: 27.06.2014
Publication Number: 20150002166 Publication Date: 01.01.2015
Grant Number: 10101488 Grant Date: 16.10.2018
Publication Kind : B2
IPC:
G01R 31/02
G01V 3/10
G PHYSICS
01
MEASURING; TESTING
R
MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
31
Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
02
Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection
G PHYSICS
01
MEASURING; TESTING
V
GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
3
Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation
08
operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
10
using induction coils
CPC:
G01V 3/102
Applicants: Robert Bosch GmbH
Inventors: Dragan Krupezevic
Juergen Mack
Agents: Norton Rose Fulbright US LLP
Gerard Messina
Priority Data: 10 2013 212 588 28.06.2013 DE
Title: (EN) Method for detecting foreign objects in an induction charging device
Abstract: front page image
(EN)

A method for detecting foreign objects in an induction charging device, with the aid of at least one control and/or regulating unit of the induction charging device, includes: ascertaining a resonance frequency; determining an actual quality at the resonance frequency; and comparing the actual quality to a setpoint quality which is a function of a resonance frequency.