User-Configurable Cooling Device Speed Modifiers for Thermal Management

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Solution Overview

Problem

Existing information handling systems lack the ability for users to customize the cooling response of individual cooling devices within the system, leading to inefficient thermal management and increased noise due to uniform fan speed increases across all fans.

Innovation Solution

Implementing user-configurable device speed modifiers that allow users to adjust the speed of specific cooling devices independently, using thermal curve offsets or multipliers, without altering the pre-defined thermal table or USTT mode, enabling tailored cooling responses to specific hardware needs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If user-selectable thermal tables (USTT) are used to increase cooling fan speed response for heavy thermal loads, then cooling performance is improved, but system acoustics deteriorate due to loud noise from all fans operating at higher speeds

Engineering Contradiction:
Improvecooling performanceVSAvoidsystem noise
Core Design Contradiction:
TemperatureVSObject-affected harmful factors

Solution Approach 1:

The patent divides the cooling fan control into individual controllable units. Instead of controlling all fans uniformly through a single thermal table, each cooling fan can be independently assigned to different thermal tables or have individual speed modifiers applied. This segmentation allows selective control where only specific fans operating near hot components are increased in speed, while other fans maintain lower speeds, thereby reducing overall system noise while maintaining adequate cooling performance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by allowing different cooling fans to have different speed response characteristics based on their specific locations and the thermal load they serve. Users can assign different thermal tables or speed modifiers to different fans, creating localized optimization where fans cooling high-heat components operate at higher speeds while fans in cooler areas operate at lower speeds. This resolves the contradiction by concentrating cooling power only where needed rather than uniformly across the entire system.

Inventive Principle:
Principle #3Local quality

2Ease of operation

If pre-defined thermal tables specify fan speed values for all cooling fans, then thermal management is simplified, but user flexibility deteriorates as users cannot customize individual fan responses

Engineering Contradiction:
Improvethermal management simplicityVSAvoiduser customization flexibility
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The patent introduces dynamic configurability to the thermal management system. While pre-defined thermal tables provide a simple baseline configuration, the system dynamically allows users to modify individual fan assignments and apply speed modifiers to specific fans. This creates a multi-level control structure where the simplicity of pre-defined tables is preserved as a foundation, but users can dynamically adjust individual fan responses to match specific hardware configurations and thermal requirements.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent makes the thermal management system multi-functional by combining multiple control mechanisms: pre-defined thermal tables for simplicity, individual fan assignment capabilities for customization, and speed modifiers for fine-tuning. This universal approach allows the same system to serve both users who want simple plug-and-play operation and users who need detailed customization, resolving the contradiction between ease of operation and adaptability.

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

3Temperature

If all cooling fans are increased in speed uniformly, then cooling capacity is improved, but energy consumption increases across all fans

Engineering Contradiction:
Improvecooling capacityVSAvoidtotal fan energy consumption
Core Design Contradiction:
TemperatureVSUse of energy by moving object

Solution Approach 1:

The patent segments the cooling fan population into different controllable groups, allowing selective speed adjustment. Instead of uniformly increasing all fan speeds, the system allows individual fans or fan groups to be assigned different thermal tables or speed modifiers based on their specific cooling requirements. This ensures that energy is consumed only by fans that need to operate at higher speeds to cool specific hot components, while other fans maintain lower, more energy-efficient speeds.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent enables selective parameter changes for different cooling fans. By allowing individual speed modifiers and different thermal table assignments per fan, the system can precisely adjust the operational parameters (speed) of each fan based on local thermal conditions. This resolves the contradiction by changing parameters only where necessary, optimizing the balance between cooling capacity and energy consumption across the entire fan system.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS9952636B2Systems and methods for user modification of cooling device response in information handling systems
Publication Date: 2018.04.24 DELL PROD LP
  • US9952636B2 patent drawing
  • US9952636B2 patent drawing
  • US9952636B2 patent drawing

AI summary

Systems and methods are provided that may be implemented for facilitating user modification of cooling device speed response to sensed temperature in information handling systems. The disclosed systems and methods may be implemented to allow an information handling system user to modify how one or more individual cooling device/s respond to device speed control values specified by stored device speed control information without requiring the user to change the identity or pre-defined device speed values of the device speed control information with which the information system is currently operating.