Fan Trigger Adjustment for Chamber-Less Thermal Control

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Solution Overview

Problem

Information handling systems in chamber-less environments face challenges in managing thermal capabilities effectively, particularly in maintaining optimal operating temperatures and cooling capacities.

Innovation Solution

The system adjusts fan speed based on calculated temperature deltas between maximum and current ambient temperatures, overriding thermal control trigger points to simulate higher ambient temperatures, thereby maintaining cooling capacity and managing thermal behavior.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the information handling system operates in a chamber-less environment with varying ambient temperatures, then the system can be deployed in more flexible locations, but the thermal management becomes difficult and cooling capacity is compromised

Engineering Contradiction:

Improvedeployment flexibilityVSAvoidcooling capacity

Core Design Contradiction:

Adaptability or versatilityVSTemperature

Solution Approach 1:

The system dynamically adjusts fan speed based on calculated temperature deltas between maximum supported ambient temperature and current ambient temperature. This parameter change allows the thermal management system to compensate for varying ambient conditions in chamber-less environments, maintaining effective cooling capacity despite deployment flexibility

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The thermal management system transitions from static ambient temperature assumptions to dynamic adjustment mechanisms. The fan speed is continuously adjusted based on real-time ambient temperature measurements and calculated temperature deltas, enabling the system to adapt to changing thermal conditions in uncontrolled environments

Inventive Principle:

Principle #15Dynamics

2Temperature

If the fan speed is increased to compensate for higher ambient temperatures, then the cooling capacity is improved, but the energy consumption increases

Engineering Contradiction:

Improvecooling capacityVSAvoidfan energy consumption

Core Design Contradiction:

TemperatureVSUse of energy by moving object

Solution Approach 1:

The system applies partial action by adjusting fan speed proportionally to the calculated temperature delta rather than running at maximum speed continuously. The fan speed adjustment is calibrated to provide sufficient cooling capacity while avoiding excessive energy consumption, applying just enough cooling power needed for the current thermal conditions

Inventive Principle:

Principle #16Partial or excessive action

3Measurement precision

If the thermal control trigger points are adjusted based on temperature delta, then the thermal management accuracy is improved, but the control system complexity increases

Engineering Contradiction:

Improvethermal control accuracyVSAvoidcontrol system complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The system performs preliminary calculation of the temperature delta between maximum supported ambient temperature and current ambient temperature before adjusting thermal control trigger points. This advance preparation allows for accurate thermal management decisions without requiring complex real-time calculations during thermal events

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The temperature delta calculation serves as an intermediary parameter that simplifies the control logic. Instead of directly comparing current temperature with multiple threshold values, the system uses the pre-calculated temperature delta to adjust trigger points, reducing control complexity while maintaining precision

Inventive Principle:

Principle #24Intermediary (Mediator)

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 approach ensures efficient thermal management by maintaining computing workload and preventing processor throttling or shutdown, even in varying ambient conditions.

Implementation Method 1

adjusting, based on the adjusted thermal control trigger points, a fan speed of a fan of the information handling system

Methodology Applied

Scientific EffectForced Convection: Forced Convection

Implementation Method 2

dissipating, based on the updated cooling capacity associated with the information handling system, heat of the information handling system

Methodology Applied

Scientific EffectThermal Conduction: Conduction (thermal)

Data Source

PatentUS12596415B2Managing thermal capabilities of an information handling system in a chamber-less environment

Publication Date: 2026.04.07 DELL PROD LP

AI summary

Managing thermal capabilities of an information handling system, including identifying a maximum supported ambient temperature of the information handling system; identifying a current ambient temperature of the information handling system; calculating a temperature delta based on the maximum supported ambient temperature of the information handling system and the current ambient temperature of the information handling system; adjusting, based on the temperature delta, one or more thermal control trigger points; adjusting, based on the adjusted thermal control trigger points, a fan speed of a fan of the information handling system; and determining, based on the adjusted fan speed of the fan, an updated cooling capacity associated with the information handling system.