Battery Power Comparison for Charging Anomaly Detection

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Solution Overview

Problem

The existing battery management systems face challenges in efficiently managing the deterioration of components in battery stations and detecting anomalies such as foreign matter inclusion, leading to increased maintenance costs and potential failures in battery charging and discharging efficiency.

Innovation Solution

A battery management system that monitors the state of electrical power exchange between batteries and stations, detects deterioration, and predicts anomalies by comparing electrical power amounts during charging and discharging, allowing for proactive maintenance and reducing unnecessary inspections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If comprehensive monitoring and inspection of battery station components is performed, then reliability is improved, but device complexity and maintenance costs increase

Engineering Contradiction:
Improvebattery station component reliabilityVSAvoidmonitoring system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The battery station system performs self-diagnosis by automatically comparing electrical power amounts during charging and discharging operations. The comparison unit uses the station's own operational data to detect anomalies and deterioration, eliminating the need for external inspection systems and reducing overall system complexity while maintaining high reliability

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system implements continuous feedback loops where operational data from power exchange is constantly monitored and compared. The comparison unit provides real-time feedback on component health status, enabling proactive maintenance decisions and improving reliability through continuous self-assessment without requiring complex external monitoring infrastructure

Inventive Principle:
Principle #23Feedback

2Reliability

If frequent inspections and maintenance are conducted, then reliability is improved, but productivity is reduced due to operational interruptions

Engineering Contradiction:
Improvebattery station reliabilityVSAvoidbattery charging/discharging efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The comparison unit detects component deterioration and anomalies before they cause actual failures by continuously analyzing power exchange data. This preliminary detection allows maintenance to be scheduled at optimal times rather than requiring frequent preventive inspections, maintaining productivity while ensuring reliability through condition-based maintenance

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

Instead of implementing expensive, complex inspection systems that require frequent operational interruptions, the patent uses a simple, low-cost comparison mechanism that operates continuously without affecting battery charging/discharging processes. The solution prioritizes operational continuity while maintaining reliability through intelligent data analysis rather than physical inspections

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Measurement precision

If detailed monitoring of electrical power exchange is implemented, then measurement precision is improved, but device complexity increases

Engineering Contradiction:
Improveelectrical power amount measurement precisionVSAvoidmonitoring system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The system extracts only the essential information needed for anomaly detection by comparing total electrical power amounts during charging and discharging. Rather than implementing complex monitoring of multiple individual parameters, the solution focuses on the net power exchange difference, achieving high measurement precision for anomaly detection while keeping the system simple and easy to implement

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS20240051427A1Comparison system, comparison method, program, and computer-readable storage medium
Publication Date: 2024.02.15 HONDA MOTOR CO LTD
  • US20240051427A1 patent drawing
  • US20240051427A1 patent drawing
  • US20240051427A1 patent drawing

AI summary

A comparison system includes: a first acquisition unit which acquires a first input/output electrical power amount of a first electrical power device including a first terminal, the first input/output electrical power amount being an input/output electrical power amount more on a side of the first electrical power device than the first terminal; a second acquisition unit which acquires a second input/output electrical power amount of a second electrical power device including a second terminal attachable to the first terminal, the second input/output electrical power amount being an input/output electrical power amount more on a side of the second electrical power device than the second terminal; and a comparison unit which compares the first input/output electrical power amount and the second input/output electrical power amount when input/output of electrical power is performed between the first and second electrical power device while the first and second terminal are attached to each other.