Heating System Control Unit Altitude Adaptation

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Solution Overview

Problem

Heating systems used at high altitudes require manual adjustments to fan speed, which can lead to excessive heat output and premature wear due to incorrect settings, especially after power failures or in variable weather conditions.

Innovation Solution

A method for automatically determining altitude using various parameters like air pressure, GPS data, or radio waves, and storing corresponding operating parameters in a control unit with memory, ensuring the heating system operates within specified output ranges and preventing erroneous settings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If manual adjustment of fan speed is performed during installation, then the heating system can be adapted to altitude, but the fan speed may be set too high causing excessive heat output and premature wear

Engineering Contradiction:
Improvealtitude adaptationVSAvoidsystem wear
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The control unit automatically determines altitude using sensors (pressure, GPS, radio waves) and self-adjusts operating parameters without manual intervention. This eliminates human error in setting fan speed, ensuring the system adapts to altitude while maintaining reliable operation within specified output ranges.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system continuously monitors altitude parameters and adjusts operating parameters based on feedback from sensors. This closed-loop control ensures fan speed is optimally set for the current altitude, preventing excessive heat output and reducing system wear while maintaining adaptability.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If manual correction of fan speed characteristic is performed, then altitude adaptation is achieved, but erroneous or abusive incorrect setting occurs leading to operation outside specified output range

Engineering Contradiction:
Improvealtitude correctionVSAvoidparameter setting accuracy
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The control unit autonomously determines altitude and calculates appropriate operating parameters without human intervention. This eliminates erroneous manual settings, ensuring precise parameter adjustment that keeps the system within specified output ranges while achieving proper altitude adaptation.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Manual mechanical adjustment of fan speed characteristics is replaced by electronic control through the control unit. The system uses sensors and algorithms to automatically set operating parameters, eliminating human error and achieving precise parameter setting accuracy while maintaining altitude adaptability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of operation

If complete reset is performed after power failure, then system can restart, but operating parameters are lost requiring manual re-adjustment

Engineering Contradiction:
Improvesystem restartVSAvoidre-adjustment time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The control unit stores determined altitude and operating parameters in memory before power failure occurs. After restart, the system retrieves these pre-stored parameters automatically, eliminating the need for manual re-adjustment and reducing re-adjustment time to zero while maintaining ease of operation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The control unit automatically restores operating parameters from stored data after power failure without requiring manual intervention. This self-restoration capability eliminates time loss during restart while maintaining ease of operation, as the system independently recovers its operational state.

Inventive Principle:
Principle #25Self-service

4Extent of automation

If automatic altitude determination is implemented, then parameter setting becomes automated, but device complexity increases due to additional sensors and control logic

Engineering Contradiction:
Improveparameter setting automationVSAvoidcontrol system complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The control unit performs multiple functions: it controls heating operations, determines altitude using various sensors (pressure, GPS, radio waves), stores operating parameters, and automatically adjusts settings. This multi-functionality achieves parameter setting automation while minimizing additional complexity by consolidating control capabilities in a single unit.

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

Solution Approach 2:

The system automatically changes operating parameters (fan speed, heat output) based on determined altitude parameters. This automated parameter adjustment achieves the desired automation level while the complexity is managed through software-based control logic rather than additional mechanical components.

Inventive Principle:
Principle #35Parameter changes

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

This method ensures the heating system operates within the specified heat output range, reducing wear and tear, and maintaining optimal performance across different altitudes and conditions, while preventing incorrect parameter settings.

Implementation Method 1

an altitude or an altitude parameter is determined

Methodology Applied
Scientific EffectBarometric measurement: Pressure Gradient

Implementation Method 2

GPS data, or radio waves

Methodology Applied
Scientific EffectGPS positioning:

Data Source

PatentEP3255342B1Method and control unit for controlling and/or calibrating a heating system and a heating system
Publication Date: 2020.02.05 ROBERT BOSCH GMBH
  • EP3255342B1 patent drawingFigure 1~2
  • EP3255342B1 patent drawingFigure 3~4
  • EP3255342B1 patent drawingFigure 5~6

AI summary

The invention relates to a method (10) for controlling and/or calibrating a heating system (12) with a control unit (14) having a memory (16). It is proposed that the method comprises the following steps: • Determining an altitude (20), • Storing operating parameters (24) based on the altitude (20) in the control unit (14), • Controlling and/or calibrating the heating system (12) based on the operating parameters (24). The invention also relates to a control unit (14) configured to carry out the method (10) according to the invention, and to a heating system (12) with the control unit (14) according to the invention.