Battery Pack Display for Non-Invasive Serviceability Assessment
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Solution Overview
Problem
Existing battery packs for electric vehicles deteriorate over time due to heavy duty cycles, making it difficult to assess their serviceability and condition without invasive and dangerous testing methods.
Innovation Solution
The implementation of a device with a visible display that provides service information, such as Remaining Useful Life and State of Health, for battery modules and packs, allowing for quick sorting and disposition of battery modules and reducing the need for invasive testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If invasive testing methods are used to assess battery condition, then measurement precision may be improved, but safety deteriorates due to electrical hazards
Solution Approach 1:
The patent introduces an intermediary display device that visually communicates battery service information without requiring direct physical or electrical contact with the battery cells. This intermediary system allows operators to assess battery condition safely from a distance, eliminating the need for invasive testing that exposes personnel to electrical hazards while still providing accurate condition assessment through visual indicators.
Solution Approach 2:
The battery system performs self-assessment and self-display of its service information. The battery module autonomously generates and displays its own condition data (such as state of charge, health status, and serviceability indicators) without requiring external testing equipment or personnel intervention. This self-service capability eliminates the need for dangerous invasive testing while maintaining measurement accuracy.
2Measurement precision
If invasive testing methods are used to assess battery serviceability, then measurement precision may be improved, but loss of time increases due to complex testing procedures
Solution Approach 1:
The system performs preliminary assessment of battery serviceability by continuously monitoring and displaying key parameters (state of charge, health status, temperature) before any physical handling or testing is required. This preliminary visual assessment allows operators to quickly determine whether a battery module is serviceable without undertaking time-consuming invasive testing procedures, thereby reducing overall time loss while maintaining assessment accuracy.
Solution Approach 2:
The visual display acts as an intermediary that provides immediate serviceability information without requiring time-consuming physical testing. Operators can rapidly assess battery condition through visual indicators rather than performing lengthy invasive tests, significantly reducing the time required for serviceability determination while maintaining measurement precision through the display of accurate sensor data.
3Device complexity
If no display is provided, then device complexity is reduced, but loss of information occurs as service conditions cannot be easily determined
Solution Approach 1:
The patent introduces a minimal-complexity visual display as an intermediary that bridges the gap between the battery's internal state and external observation. This display system provides comprehensive service condition information (charge level, health status, serviceability) without adding significant complexity to the battery system itself, thereby preventing information loss while maintaining relative simplicity.
Solution Approach 2:
The system uses color-coded visual indicators to communicate battery service conditions. Different colors represent different states (e.g., green for good condition, yellow for degraded, red for failed), allowing operators to quickly understand battery status without complex interfaces or additional system complexity. This color-change approach efficiently prevents information loss through intuitive visual communication.
Data Source
AI summary
In some implementations, a device may include a cell arrangement that stores energy for operating an energy storage system. In addition, the device may include a display that is positioned at the battery and configured to receive service information from the management system and to display the service information that relates to the cell arrangement such that at least one of a serviceability and condition of the battery is decipherable by viewing the display.