Dynamic Battery Discharge Protection via Status-Adaptive Thresholds
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional battery technologies face challenges in accurately determining discharge protection parameters, leading to inefficient battery capacity utilization due to fixed discharge cut-off voltages that do not account for varying operation statuses or conditions.
Innovation Solution
A method and system that dynamically adjust discharge protection parameters based on real-time status parameters such as discharge current and temperature, allowing for tailored discharge protection operations to optimize battery usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a fixed discharge cut-off voltage is used for discharge protection, then the discharge protection parameter determination is simple, but the battery capacity utilization is insufficient and discharge protection accuracy is poor
Solution Approach 1:
The patent implements dynamic discharge protection by switching between different discharge cut-off voltage thresholds based on the battery's operation status. The control circuit dynamically adjusts the discharge protection parameter from a first threshold (e.g., 3.0V) under normal conditions to a second threshold (e.g., 2.8V) under abnormal conditions, enabling the system to adapt to varying operational requirements and improve discharge protection accuracy without excessive complexity
Solution Approach 2:
The patent changes the discharge protection parameter (cut-off voltage threshold) based on detected operation status parameters such as temperature or discharge rate. When abnormal status is detected, the system modifies the discharge cut-off voltage parameter to better match the actual battery conditions, thereby improving measurement precision while maintaining reasonable system complexity
2Device complexity
If a fixed discharge cut-off voltage is used for discharge protection, then the system complexity is low, but the battery capacity utilization is limited
Solution Approach 1:
The system dynamically adjusts discharge protection parameters based on real-time operation status detection, allowing the battery to discharge more fully under abnormal conditions (using a lower second threshold) while maintaining standard protection under normal conditions. This dynamic approach increases battery capacity utilization without requiring permanently complex system architecture
Solution Approach 2:
The control circuit automatically detects operation status parameters and autonomously switches between different discharge protection thresholds without external intervention. This self-service capability enables improved battery capacity utilization through adaptive protection while keeping the system relatively simple, as the battery management system handles adjustments independently
3Ease of operation
If discharge protection is performed without considering operation status, then the discharge protection operation is simple to implement, but the discharge protection accuracy is insufficient
Solution Approach 1:
The system incorporates feedback mechanisms by continuously detecting operation status parameters (such as temperature or discharge rate) and using this information to adjust the discharge protection threshold. The control circuit receives feedback from the battery status and automatically modifies the discharge cut-off voltage accordingly, improving accuracy while maintaining ease of operation through automated feedback-driven adjustment
Solution Approach 2:
The battery management system performs self-service by automatically detecting its own operation status and adjusting discharge protection parameters without external control. The control circuit independently monitors battery conditions and switches between protection thresholds based on detected abnormalities, improving discharge protection accuracy while keeping the operation simple for the user
Data Source
AI summary
A method for controlling a battery includes obtaining a present status parameter of the battery, and determining a discharge protection parameter according to the present status parameter for using in a discharge protection operation on the battery.