Cooktop User Interface Adaptation for Heating Power Limit Management

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Solution Overview

Problem

Hobs face challenges in preventing heating output limits from being exceeded, especially with increasing complexity and the number of heating units, leading to potential inefficiencies and reduced flexibility in cooking processes.

Innovation Solution

A method for a hob that involves a control unit adapting the user interface to prevent heating output limits by selectively carrying out available heating types and adjusting input selections based on the present type of heating, ensuring that only a maximum heating output limit value is used, thereby optimizing cooking performance and flexibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the user interface is adjusted in the same way for all heating modes to prevent heating power limit exceedance, then the heating power limit is reliably prevented from being exceeded, but the flexibility and adaptability to different cooking situations is reduced

Engineering Contradiction:
Improveheating power limit preventionVSAvoidflexibility to cooking situations
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The user interface is dynamically adapted based on the detected heating mode. The control unit identifies the active heating mode (e.g., induction, ceramic, gas) and adjusts the user interface accordingly, allowing different input selections and power level displays for different heating types. This dynamic adaptation maintains reliability by preventing power limit exceedance while preserving flexibility through mode-specific interface configurations.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Different parts of the user interface are configured with different properties depending on the heating mode. For example, certain power levels may be available for induction heating but not for ceramic heating. The interface presents locally optimized options for each heating mode, allowing maximum flexibility within the constraints of available power for that specific heating type.

Inventive Principle:
Principle #3Local quality

2Adaptability or versatility

If the cooktop is equipped with many heating elements and heating modes to increase versatility, then the adaptability to different cooking situations is improved, but the complexity of preventing heating power limit exceedance increases

Engineering Contradiction:
Improvenumber of heating modesVSAvoiduser interface adaptation complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The control unit automatically identifies the active heating mode and configures the user interface without requiring manual intervention from the user. The system self-adapts by detecting which heating element is active and what type of heating is being used, then automatically presents the appropriate power level selections and interface elements, reducing the complexity burden on the user while supporting multiple heating modes.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

A single user interface design is used across all heating modes, but it is dynamically configured to provide mode-appropriate functionality. The same physical interface (buttons, display, knobs) serves multiple heating types by adapting its behavior and available options based on the detected heating mode, rather than requiring separate interfaces for each heating type.

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

3Reliability

If the heating power limit is strictly enforced to prevent overheating and ensure safety, then the reliability and safety are improved, but the cooking performance and operator satisfaction are reduced

Engineering Contradiction:
Improvesafety and overheating preventionVSAvoidcooking performance
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The heating power limit is dynamically adjusted based on the detected heating mode and the specific cooking situation. Different heating modes have different maximum power capabilities and thermal characteristics. The system enforces appropriate power limits for each mode to prevent overheating while allowing maximum cooking performance within those safe boundaries. The interface adapts to show available power levels that balance safety constraints with cooking effectiveness.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3509394B1Method for a hotplate
Publication Date: 2021.08.04 BOSCH SIEMENS HAUSGERATE GMBH
  • EP3509394B1 patent drawingFigure 1~2
  • EP3509394B1 patent drawingFigure 3~4
  • EP3509394B1 patent drawingFigure 5~6

AI summary

The invention relates to a method for a cooktop (10a-c), in particular for the manufacture and/or operation of the cooktop (10a-c), which has at least one user interface (12a-c) and which, in at least one operating state in which only a maximum heating power of a heating power limit is available for heating a cooking vessel (14a-c) with at least one heating mode, which is lower than a heating power selectable in at least one further operating state for the heating mode, prevents the heating power limit from being exceeded. In order to provide a generic device with improved flexibility, it is proposed that the heating power limit is prevented by adapting the user interface (12a-c) depending on the heating mode.