Battery Capacity Measurement Algorithm Management
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Solution Overview
Problem
Existing battery management systems in electronic systems face challenges in efficiently utilizing battery capacity during maintenance discharge cycles, leading to increased exposure to single-point failures and reduced data security due to inadequate capacity measurement methods.
Innovation Solution
Implementing a method that alternates between 'battery floor' and 'battery ceiling' measurement algorithms to determine available battery capacity, allowing for efficient use of both maximum and minimum charge levels, thereby extending the protected state of the electronic system and reducing exposure to power failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single battery measurement algorithm is used, then the system is simple to operate, but the battery capacity utilization is inefficient and data security is reduced
Solution Approach 1:
The system dynamically switches between battery floor algorithm and battery ceiling algorithm based on the detected operating mode (maintenance discharge cycle mode vs. normal mode). This dynamic adaptation allows the system to optimize battery capacity measurement for each specific mode, improving both reliability and capacity utilization without requiring manual configuration.
Solution Approach 2:
The system changes the measurement parameter (algorithm type) based on operating conditions. During maintenance discharge cycles, it uses one algorithm to measure capacity relative to minimum capacity, while during normal operation, it uses another algorithm to measure capacity relative to maximum capacity. This parameter change resolves the contradiction by adapting the measurement approach to the operational context.
2Duration of action of moving object
If battery capacity is measured relative to maximum capacity, then the protected state is extended, but the exposure to single-point failures increases during maintenance cycles
Solution Approach 1:
The system dynamically adjusts the reference capacity level based on operating mode. During maintenance discharge cycles, it measures relative to minimum capacity to reduce failure exposure, while during normal operation, it measures relative to maximum capacity to extend the protected state duration. This dynamic adjustment resolves the contradiction by optimizing the reference level for each operational phase.
3Measurement precision
If maintenance discharge cycles are performed, then battery accuracy is improved, but the system exposure to power failures increases
Solution Approach 1:
The system performs maintenance discharge cycles as preliminary actions to recalibrate and improve measurement accuracy of the battery capacity. By scheduling these cycles proactively and using appropriate algorithms during and after the cycles, the system maintains high measurement precision while managing the temporary increase in failure exposure.
Solution Approach 2:
The system uses feedback from the operating mode detection to select the appropriate algorithm. When a maintenance discharge cycle is detected, the system switches to the algorithm optimized for that mode, ensuring accurate capacity measurement during the cycle and properly managing the system's exposure to failures throughout the process.
Data Source
AI summary
A method of backing up data from an electronic system is disclosed. The method may include detecting an operating mode of the battery subsystem that is a maintenance discharge cycle operating mode and in response, calculating, using a first algorithm, the available battery capacity relative to a minimum battery capacity. The method may also include detecting an operating mode of the battery subsystem that is a normal operating mode and in response, calculating, using a second algorithm, the available battery capacity relative to a maximum battery capacity. The method may also include comparing the available battery capacity to a battery capacity sufficient to complete a backup operation, detecting a backup trigger condition and in response to the backup trigger condition and the available battery capacity being sufficient to complete a backup operation, backing up, data from the electronic system.