Reuse Battery Characteristic Map Verification for Reliable Operation

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Solution Overview

Problem

Existing methods fail to accurately save characteristic map data for reused batteries, leading to impaired operational reliability due to errors in data storage, especially when batteries are reused with different states of health (SOH) from their initial condition.

Innovation Solution

A method involving a management unit that receives, verifies, and saves characteristic map data using an error-detecting code, ensuring the data corresponds to the battery's current state, thereby improving operational reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If characteristic map data is saved without verification, then data storage is simple and fast, but data accuracy and operational reliability deteriorate

Engineering Contradiction:
Improveoperational reliabilityVSAvoiddata verification complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by incorporating error-detecting codes into the characteristic map data before storage. The management unit generates and attaches error-detecting codes (such as checksums or CRC) to the characteristic map data prior to saving it in the storage portion. This preliminary verification mechanism ensures data integrity without requiring complex post-storage verification procedures, thus improving operational reliability while maintaining relatively simple implementation.

Inventive Principle:
Principle #10Preliminary action

2Measurement precision

If error-detecting code verification is implemented, then data accuracy improves, but processing time and complexity increase

Engineering Contradiction:
Improvedata accuracyVSAvoiddata processing time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent uses error-detecting codes as an intermediary element between the characteristic map data and the storage portion. These codes act as a mediator that enables verification of data accuracy without requiring complex re-measurement or re-acquisition of the characteristic map data. The error-detecting code serves as a lightweight verification mechanism that quickly validates data integrity, minimizing additional processing time while ensuring measurement precision.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of manufacture

If characteristic map data is not verified, then manufacturing process is simple, but operational reliability deteriorates due to potential errors

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidoperational reliability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent implements self-service by enabling the management unit to automatically generate, attach, and verify error-detecting codes for the characteristic map data during the manufacturing process. This self-verification mechanism allows the system to ensure data accuracy without requiring external verification procedures or additional manual checking steps. The management unit autonomously performs the verification function, maintaining manufacturing simplicity while improving operational reliability through automated error detection.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS20260009854A1Method of manufacturing reuse battery system and method of operating the same
Publication Date: 2026.01.08 GS YUASA INT LTD
  • US20260009854A1 patent drawing
  • US20260009854A1 patent drawing
  • US20260009854A1 patent drawing

AI summary

A method of manufacturing a reuse battery system includes receiving, by a management unit of a used battery, characteristic map data corresponding to a state of the used battery on or after a time when reuse of the used battery is started; verifying, by the management unit, the received characteristic map data by using an error-detecting code added to the characteristic map data; and saving, when the received characteristic map data is appropriate, the characteristic map data in a storage portion by the management unit.