MONITORING AN APPARATUS FOR INDUCTIVE ENERGY TRANSMISSION - APPARATUS AND METHOD
First Claim
1. A monitoring apparatus (10) for at least one electrical apparatus designed for inductive energy transmission, the monitoring apparatus comprising:
- a sensor device (12) with a coil arrangement comprising at least one coil (14, 14a), wherein the coil arrangement including the at least one coil (14, 14a) is configured to be disposed at, on and/or in the electrical apparatus, and the single coil (14, 14a) or at least one of the coils (14, 14a) of the coil arrangement is integrated into at least one electronic circuit (18); and
an evaluation device (20), which is designed to perform one or more of the following acts;
to detect whether at least one physical variable (Δ
f1 to Δ
fn, Δ
A1 to Δ
An), which is measured by means of the at least one electronic circuit (18) or appears in the at least one electronic circuit, differs from at least one predefined normal range of values, and, provided that the at least one determined physical variable (Δ
f1 to Δ
fn, Δ
A1 to Δ
An) differs from the at least one predefined normal range of values,to output at least one control signal (36) to the electrical apparatus, a further electrical apparatus designed for inductive energy transmission, or both, by means of which control signal the electrical apparatus, the further electrical apparatus, or both can be directed into a predefined foreign object protection mode at least for a predefined period of time,to output at least one foreign object information signal (32) to at least one information output electronics (34), by means of which the at least one information output electronics (34) can be actuated to output at least one foreign object warning signal,and wherein,the at least one coil (14, 14a) of the coil arrangement is wound, designed, attached, or a combination of wound, designed, or attached to at least one filter (52) in such a manner that currents (I1, I2), voltages, or both induced in the at least one coil (14, 14a) of the coil arrangement can be at least partially averaged, filtered out, or both averaged and filtered out.
1 Assignment
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Accused Products
Abstract
The invention relates to a monitoring apparatus (10) for at least one electrical apparatus designed for inductive energy transmission, having a sensor device (12) with a coil arrangement comprising at least one coil (14) and an evaluation device (20) for detecting whether at least one measured physical variable differs from at least one predefined normal range of values, wherein the at least one coil (14) of the coil arrangement is wound, designed and/or attached to at least one filter in such a manner that currents and/or voltages induced in the at least one coil (14) of the coil arrangement can be at least partially averaged and/or filtered out. The invention also relates to electrical apparatuses equipped with the monitoring apparatus (10) and to corresponding methods.
7 Citations
16 Claims
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1. A monitoring apparatus (10) for at least one electrical apparatus designed for inductive energy transmission, the monitoring apparatus comprising:
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a sensor device (12) with a coil arrangement comprising at least one coil (14, 14a), wherein the coil arrangement including the at least one coil (14, 14a) is configured to be disposed at, on and/or in the electrical apparatus, and the single coil (14, 14a) or at least one of the coils (14, 14a) of the coil arrangement is integrated into at least one electronic circuit (18); and an evaluation device (20), which is designed to perform one or more of the following acts; to detect whether at least one physical variable (Δ
f1 to Δ
fn, Δ
A1 to Δ
An), which is measured by means of the at least one electronic circuit (18) or appears in the at least one electronic circuit, differs from at least one predefined normal range of values, and, provided that the at least one determined physical variable (Δ
f1 to Δ
fn, Δ
A1 to Δ
An) differs from the at least one predefined normal range of values,to output at least one control signal (36) to the electrical apparatus, a further electrical apparatus designed for inductive energy transmission, or both, by means of which control signal the electrical apparatus, the further electrical apparatus, or both can be directed into a predefined foreign object protection mode at least for a predefined period of time, to output at least one foreign object information signal (32) to at least one information output electronics (34), by means of which the at least one information output electronics (34) can be actuated to output at least one foreign object warning signal, and wherein, the at least one coil (14, 14a) of the coil arrangement is wound, designed, attached, or a combination of wound, designed, or attached to at least one filter (52) in such a manner that currents (I1, I2), voltages, or both induced in the at least one coil (14, 14a) of the coil arrangement can be at least partially averaged, filtered out, or both averaged and filtered out. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for monitoring at least on partial surrounding area of at least one electrical apparatus designed for inductive energy transmission, comprising the following steps:
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determining at least one physical variable (Δ
f1 to Δ
fn, Δ
A1 to Δ
An), wherein the at least one physical variable (Δ
f1 to Δ
fn, Δ
A1 to Δ
An) is measured by means of at least one electronic circuit (18) associated with at least one coil (14, 14a) of a coil arrangement comprising at least one coil (14, 14a) that is disposed at, on, or in the electrical apparatus, wherein the at least one coil (14, 14a) cooperates with at least one filter (52) in such a manner that currents (I1, I2), voltages, or both currents and voltages induced in the at least one coil (14, 14a) of the coil arrangement are at least partially averaged, filtered out, or both averaged and filtered out (S1);determining whether the at least one determined physical variable (Δ
f1 to Δ
fn, Δ
A1 to Δ
An) differs from at least one predefined normal range of values (S2); andprovided that the at least one determined physical variable (Δ
f1 to Δ
fn, Δ
A1 to Δ
An) differs from the at least one predefined normal range of values, carrying out at least one of the following steps (S3);directing the electrical apparatus, a further electrical apparatus, or both are designed for inductive energy transmission into a predefined foreign object protection mode at least for a predetermined period of time; and actuating at least one information output electronics (34) for outputting at least one foreign object warning signal. - View Dependent Claims (14, 15, 16)
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Specification