Battery Pack Aging Estimation Across Different Charger Types
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Solution Overview
Problem
Existing methods fail to accurately and continuously determine the type-dependent aging state or state variable of a battery pack, which is crucial for supplying electrical drive power to processing devices, especially when switching between different charger types.
Innovation Solution
A method and system that automatically recognize the type of charger coupled with the battery pack and determine the aging state or state variable by analyzing charging variables, such as charging current and voltage, using a battery management system, allowing for continuous and consolidated monitoring across different types of chargers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single fixed method is used to determine aging state, then the method is simple to implement, but it cannot accurately determine aging state across different charger types
Solution Approach 1:
The patent implements a dynamic determination method that automatically adapts to different charger types by recognizing charger characteristics and selecting appropriate determination algorithms. The system transitions from a static single-method approach to a dynamic multi-method approach, enabling accurate aging state determination across various charger types while maintaining operational simplicity through automated selection.
Solution Approach 2:
The patent changes the determination parameters based on charger type recognition. By identifying specific charger characteristics and adjusting the determination methodology accordingly, the system achieves accurate aging state measurement for each charger type without requiring manual configuration, thus resolving the contradiction between precision and complexity.
2Reliability
If continuous monitoring is implemented across different charger types, then aging state tracking is maintained, but the system complexity increases
Solution Approach 1:
The patent creates a universal determination system that can handle multiple charger types through a single integrated approach. The system recognizes different charger types and applies appropriate determination methods automatically, providing continuous reliable monitoring without requiring separate systems for each charger type, thus maintaining reliability while controlling complexity.
Solution Approach 2:
The system implements feedback mechanisms that continuously monitor charging parameters and automatically adjust determination methods based on recognized charger types. This feedback loop ensures continuous reliable aging state tracking while automating the complexity management, as the system learns and adapts to different charger characteristics over time.
3Measurement precision
If type-dependent determination is implemented, then aging state accuracy improves, but the ease of operation decreases
Solution Approach 1:
The patent implements a self-service determination system that automatically recognizes charger types and selects appropriate determination methods without user intervention. The system performs type-dependent determination autonomously, maintaining high accuracy while preserving ease of operation, as users simply connect the charger and the system handles all complexity internally.
Data Source
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AI summary
The invention relates to a method for determining the type-dependent state of aging (SOH) or a state variable corresponding to the state of aging of a battery pack (1) for supplying an electrically driven processing device (2) with electrical drive power (AL), wherein the battery pack (1) and a charger (3) for supplying the battery pack (1) with electrical charging power (LL) can be coupled together, wherein the charger (3) is from a set of different types (Ta, Tb) of chargers (3a, 3b), wherein the method comprises the steps: a) recognizing a type (Ta, Tb) of the coupled charger (3a, 3b), in particular by means of the battery pack (1), and b) determining the state of aging (SOH) or the state variable as a function of the recognized type (Ta, Tb), in particular by means of the battery pack (1).