Battery State Monitoring With Location-Based Environmental Reference

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Solution Overview

Problem

Existing battery management systems fail to accurately assess the state of batteries considering environmental factors such as temperature and humidity, leading to inefficiencies in tracking and observing battery performance during storage.

Innovation Solution

A battery management apparatus and method that includes a battery information measuring unit and a control unit to measure voltage, determine the storage location, obtain environment information, and set reference state information to judge the battery's state, adjusting voltage measurement cycles based on the judged state.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If continuous voltage measurement is performed to accurately track battery state, then measurement precision is improved, but energy consumption increases

Engineering Contradiction:
Improvebattery state measurement precisionVSAvoidpower consumption
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The patent applies dynamics by making the voltage measurement cycle adjustable rather than fixed. The control unit dynamically changes the measurement cycle based on the judged battery state - using shorter cycles when abnormal states are detected and longer cycles during normal operation. This resolves the contradiction by adapting measurement frequency to actual needs, maintaining precision when necessary while reducing energy consumption during normal periods.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of measurement cycle time based on battery state. By setting different voltage measurement cycles (e.g., first cycle for abnormal state, second cycle for normal state), the system optimizes the balance between measurement precision and energy consumption. This parameter adjustment allows the system to maintain accurate tracking when needed while minimizing power usage during stable operation.

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If voltage measurement cycle is shortened to improve state tracking, then measurement precision is improved, but energy consumption increases

Engineering Contradiction:
Improvebattery state tracking accuracyVSAvoidtime for voltage measurement
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The system dynamically adjusts the voltage measurement cycle based on battery state judgments. When abnormal states are detected, the measurement cycle is shortened to improve tracking accuracy. When battery state is normal, the cycle is extended to reduce time loss. This dynamic adaptation resolves the contradiction between tracking accuracy and time efficiency.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements parameter changes by setting different voltage measurement cycles according to battery condition. The control unit changes the measurement cycle parameter from a first value (for abnormal states) to a second value (for normal states), optimizing the balance between tracking precision and time consumption based on actual battery needs.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If environment information is collected and analyzed to judge battery state, then reliability is improved, but device complexity increases

Engineering Contradiction:
Improvebattery state judgment reliabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The control unit performs multiple functions: it judges battery state based on voltage information, determines storage location, obtains environment information, and adjusts measurement cycles. By making the control unit multi-functional, the patent improves reliability through comprehensive data analysis without significantly increasing device complexity, as the same processor handles diverse tasks.

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

Solution Approach 2:

The system uses its own control unit to integrate and analyze both battery voltage data and environment information, performing self-diagnosis and state judgment. This self-service approach improves reliability through comprehensive monitoring while avoiding the need for separate dedicated hardware for each function, thus controlling complexity.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS12578394B2Battery management apparatus and method
Publication Date: 2026.03.17 LG ENERGY SOLUTION LTD
  • US12578394B2 patent drawing
  • US12578394B2 patent drawing
  • US12578394B2 patent drawing

AI summary

Discussed is a battery management apparatus that can include a battery information measuring unit connected to a battery and configured to measure a voltage of the battery; and a control unit configured to receive from an outside, location information about a location where the battery is stored, receive battery information including the voltage of the battery from the battery information measuring unit, determine a target location where the battery is stored based on the received location information, obtain environment information of the determined target location, set reference state information of at least one reference cell stored around the determined target location, and judge a state of the battery based on at least one of the received battery information.