Energy Storage Control Subsystem Temperature-Based Discharge Management

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Solution Overview

Problem

Information handling systems face challenges in efficiently managing peak power demands, which existing approaches have not adequately addressed.

Innovation Solution

An information handling system with an energy storage device electrically coupled to an information handling resource, featuring energy storage cells and a control subsystem that selectively enables and disables discharging based on the temperature of the energy storage device to manage power delivery effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If the energy storage device continuously discharges to meet peak power demands, then the power delivery capability is improved, but the temperature of the energy storage device increases leading to safety issues and reduced reliability

Engineering Contradiction:
Improvepower delivery capabilityVSAvoidenergy storage device temperature
Core Design Contradiction:
PowerVSTemperature

Solution Approach 1:

The patent implements dynamic temperature-based control of the energy storage device. The control subsystem continuously monitors temperature and dynamically adjusts the discharge enablement state between enabled and disabled based on whether temperature thresholds are exceeded. This dynamic adjustment allows the system to maximize power delivery when safe and prevent overheating when necessary, resolving the contradiction between power delivery capability and temperature control.

Inventive Principle:
Principle #15Dynamics

2Device complexity

If the energy storage device operates without temperature-based control, then the system complexity is reduced, but the reliability and safety of the system deteriorates due to uncontrolled temperature rise

Engineering Contradiction:
Improvecontrol system complexityVSAvoidsystem reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The control subsystem automatically monitors temperature and makes decisions about discharge enablement without requiring external intervention or complex control algorithms. The system uses simple threshold-based logic where the temperature sensor directly controls the discharge enablement state, allowing the energy storage device to self-regulate its operation based on its own thermal state, thereby maintaining high reliability with minimal added complexity.

Inventive Principle:
Principle #25Self-service

3Temperature

If the energy storage device disables discharging to prevent overheating, then the temperature control is improved, but the power delivery capability to meet peak demands is reduced

Engineering Contradiction:
Improvetemperature controlVSAvoidpeak power delivery capability
Core Design Contradiction:
TemperatureVSPower

Solution Approach 1:

The control subsystem periodically monitors the temperature of the energy storage device and alternates the discharge enablement state between enabled and disabled based on temperature threshold crossings. This periodic monitoring and state switching allows the system to achieve both temperature control and power delivery by enabling discharge during safe temperature periods and disabling only when necessary, rather than maintaining a fixed disabled state.

Inventive Principle:
Principle #19Periodic action

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 solution reduces the disadvantages associated with peak power demands by optimizing energy storage and usage, ensuring efficient power distribution while preventing over-temperature conditions, thereby enhancing the system's operational efficiency and reliability.

Implementation Method 1

a control subsystem configured to selectively enable and disable discharging of the one or more energy storage cells to the information handling resource based on a temperature associated with the energy storage device

Methodology Applied
Scientific EffectTemperature sensing:

Implementation Method 2

an energy storage device electrically coupled to the information handling resource and comprising one or more energy storage cells

Methodology Applied
Scientific EffectEnergy storage: Battery (electricity)

Data Source

PatentUS11132039B2Systems and methods for controlling charging and discharging of an energy device based on temperature
Publication Date: 2021.09.28 DELL PROD LP
  • US11132039B2 patent drawing
  • US11132039B2 patent drawing

AI summary

An information handling system may include an information handling resource and an energy storage device electrically coupled to the information handling resource and comprising one or more energy storage cells and a control subsystem configured to selectively enable and disable discharging of the one or more energy storage cells to the information handling resource based on a temperature associated with the energy storage device.