Dual-Channel Induction Energy Transfer for Signal Verification

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Solution Overview

Problem

Existing induction energy transfer systems lack sufficient safety measures and functionality, leading to potential hazards and malfunctions.

Innovation Solution

Incorporating multiple information channels for signal transmission between the power supply and receiving units, including a first information channel for encoding measured quantities and a second information channel for verifying these quantities, ensuring reliable and safe energy transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a single information channel is used for signal transmission, then the device complexity is reduced, but the safety and reliability are insufficient

Engineering Contradiction:
ImprovesafetyVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The information transmission is divided into two separate channels: a first information channel for transmitting a first signal encoding a measured quantity, and a second information channel for transmitting a second signal encoding the same or related measured quantity. This segmentation allows independent verification of measurements through multiple pathways, enhancing safety without requiring complete system redesign

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system implements feedback by transmitting the same measured quantity information through two different channels. The receiver can compare the first signal and second signal to verify measurement accuracy, creating a self-checking mechanism that improves reliability while maintaining manageable system complexity

Inventive Principle:
Principle #23Feedback

2Reliability

If multiple information channels are implemented for verifying measured quantities, then safety and reliability are improved, but the device complexity increases

Engineering Contradiction:
Improveoperational reliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The induction system performs multiple functions through the dual-channel architecture: primary energy transfer, measurement transmission via first channel, verification transmission via second channel, and automatic comparison/validation. This multi-functionality approach consolidates safety verification into the existing energy transfer infrastructure, avoiding the need for entirely separate verification systems

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If signal verification through multiple channels is implemented, then malfunctions are reduced, but the ease of operation may be affected

Engineering Contradiction:
Improvefunctional reliabilityVSAvoidease of use
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system performs self-verification by automatically comparing measurements transmitted through the first information channel with those transmitted through the second information channel. This self-service validation mechanism operates autonomously without requiring user intervention, maintaining ease of operation while significantly improving functional reliability through continuous verification

Inventive Principle:
Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enhances safety and operational reliability by verifying measured quantities, reducing malfunctions, and improving user satisfaction through enhanced functionality and ease of use.

Implementation Method 1

at least one supply unit (12a, 12b), in particular at least one power supply unit, which has at least one supply induction element (14a, 14b) that inductively provides energy

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentEP4042835B1Induction energy transmission system
Publication Date: 2026.03.25 BSH HAUSGERATE GMBH
  • EP4042835B1 patent drawingFigure 1~2
  • EP4042835B1 patent drawingFigure 3
  • EP4042835B1 patent drawingFigure 4

AI summary

The invention is based on an induction energy transmission system (10a-b), in particular an induction cooking system, having at least one supply unit (12a) which has at least one supply induction element (14a) which inductively provides energy in at least one operating state, having at least one receiving unit (16a-b) which receives at least part of the energy provided by the supply induction element (14a) in the operating state, having at least one sensor unit (20a) for detecting at least one measurement variable (22a), and having a first information channel (30a) for transmitting at least one first signal (32a) between the receiving unit (16a-b) and the supply unit (12a), which first signal codes the measurement variable (22a). In order to provide a system of the generic type having improved characteristics in terms of safety, according to the invention the induction energy transmission system (10a-b) has at least one second information channel (34a), which differs from the first information channel (30a), for transmitting at least one second signal (36a) between the receiving unit (16a-b) and the supply unit (12a), which second signal codes the measurement variable (22a).