Multi-Battery Cooling Control for Temperature Balance

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Solution Overview

Problem

In electric devices with multiple batteries, temperature differences between batteries can compromise performance and usage experience due to inefficient cooling strategies.

Innovation Solution

A method to determine temperature differences between batteries and perform targeted cooling based on these differences, using multiple cooling units and control valves to ensure consistent battery temperatures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If cooling is started when battery temperature reaches threshold T0 and stopped when temperature drops to T1, then the probability of excessively high battery temperature is reduced, but temperature differences between multiple batteries in the same electric device increase

Engineering Contradiction:
Improvebattery temperature controlVSAvoidtemperature consistency between batteries
Core Design Contradiction:
TemperatureVSStability of the object's composition

Solution Approach 1:

The patent applies local quality by implementing independent temperature control for each battery based on its individual temperature characteristics. Each battery is monitored separately with its own temperature threshold, and cooling is applied locally to specific batteries that exceed their thresholds rather than uniform cooling of all batteries. This resolves the contradiction by maintaining temperature consistency across multiple batteries while allowing each to be controlled according to its local thermal state.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent segments the temperature control system into independent control units for each battery. Instead of treating all batteries as a single system with uniform control, the method divides the control strategy into separate temperature monitoring and cooling activation for each battery. This segmentation enables differentiated temperature management that prevents temperature disparities between batteries while maintaining overall system efficiency.

Inventive Principle:
Principle #1Segmentation

2Device complexity

If uniform cooling strategy is applied to all batteries, then system control is simplified, but cooling efficiency decreases due to unnecessary cooling of batteries that do not require it

Engineering Contradiction:
Improvecontrol system complexityVSAvoidcooling energy waste
Core Design Contradiction:
Device complexityVSLoss of energy

Solution Approach 1:

The patent implements self-service by enabling each battery to independently determine its own cooling needs based on its temperature threshold. Each battery essentially manages its own thermal state by activating cooling only when its specific temperature criterion is met, rather than being subjected to centralized uniform control. This reduces energy waste from unnecessary cooling while maintaining relatively simple control logic at the system level.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent applies parameter changes by using different temperature thresholds for different batteries based on their individual characteristics and operational states. Rather than applying a single uniform temperature threshold to all batteries, the system adjusts the temperature parameter (threshold) for each battery according to its specific conditions, enabling more efficient and targeted cooling that reduces energy consumption.

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 approach enhances battery performance and usage experience by reducing temperature disparities and improving cooling efficiency.

Implementation Method 1

performing cooling processing on the first battery

Methodology Applied
Scientific EffectHeat transfer: Conduction (thermal)

Data Source

PatentUS20260088384A1Battery temperature control method, apparatus, and system, device, and storage medium
Publication Date: 2026.03.26 CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
  • US20260088384A1 patent drawing
  • US20260088384A1 patent drawing
  • US20260088384A1 patent drawing

AI summary

This application relates to batteries and provides a method, device, and system for controlling battery temperature. The method includes obtaining temperatures of two batteries in an electric device, calculating the temperature difference between them, and when the difference is greater than a set threshold, cooling the battery with the higher temperature. This keeps the batteries at similar temperatures, improving overall performance and safety, and giving users a more stable experience.