Battery Pack Ship Mode Control Without Fuel Gauge Reset
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Solution Overview
Problem
The existing ship mode technique for minimizing battery power consumption in electronic devices is limited by its dependence on system circuitry, leading to errors in battery life estimation and increased charging times due to incorrect regulation of battery charge levels.
Innovation Solution
An electronic device with a battery pack that includes a battery management circuitry capable of independently enabling and disabling the ship mode based on battery state information, allowing electrical disconnection and reconnection with the system circuitry, thereby reducing power consumption and preventing errors in battery life estimation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the ship mode is controlled by the power supply module of the system module, then the power consumption of the battery is minimized, but the battery life estimation becomes inaccurate and charging time increases
Solution Approach 1:
The patent divides the control function into two independent parts: the battery management module handles battery-specific operations (ship mode control, charge regulation) while the system module handles system operations. This segmentation allows the battery management module to maintain accurate fuel gauge data during ship mode without being reset by system module operations, resolving the contradiction between power minimization and measurement accuracy.
Solution Approach 2:
The battery management module independently controls the ship mode based on its own internal state (fuel gauge data, charge levels) without requiring system module intervention. This self-service capability ensures that battery management operations continue accurately during ship mode, preventing the loss of measurement precision while maintaining energy efficiency.
2Reliability
If the power supply module stops power supply based on voltage of battery cell, then the battery is protected, but the battery charge regulation becomes incorrect leading to increased charging time
Solution Approach 1:
The patent separates the power stop control function from the system module and places it in the battery management module. This segmentation allows the battery management module to make informed decisions about when to stop power supply based on accurate real-time battery state information, ensuring both battery protection and optimal charging speed without the delays caused by system module reset operations.
3Device complexity
If the ship mode is released by resetting power supply module functions, then the system is simplified, but the fuel gauge data is lost causing errors in battery measurement
Solution Approach 1:
The patent segments the control architecture so that the battery management module operates independently from the system module. This segmentation prevents the loss of fuel gauge data because the battery management module maintains its own separate data structures and state information that are not affected by system module reset operations.
Solution Approach 2:
The battery management module acts as an intermediary between the battery and the system module. It translates system module requests into battery-specific operations while maintaining its own internal state independently. This intermediary role prevents information loss by ensuring that critical battery data is preserved and managed separately from system module operations.
Data Source
AI summary
An electronic device including a battery pack and an operation method of the electronic device is provided. The electronic device includes a system circuitry and a battery pack, wherein the battery pack includes a battery management circuitry, a protection operation circuitry, and a battery, wherein the battery management circuitry may be configured to identify a state of the battery to obtain battery state information, activate, on the basis of the battery state information, a ship mode for minimizing power consumption of the battery, and control the protection operation circuitry to electrically disconnect the system circuitry from the battery pack, inactivate the ship mode on the basis of connection between a power key included in the system circuitry and a first pin of the battery management circuitry, and control the protection operation circuitry to electrically connect the system circuitry to the battery pack.