Battery Management Unit Voltage Threshold Control
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Solution Overview
Problem
Information handling systems and peripheral devices face challenges in efficiently managing battery discharge voltages, leading to potential damage and reduced functionality, as existing technologies do not effectively manage voltage thresholds to prevent battery degradation and ensure continuous operation.
Innovation Solution
A system and method that charge and discharge batteries across multiple voltage thresholds, utilizing a battery management unit to withhold power from components when reaching critical discharge voltages, and access reserved energy capacities to prevent damage and extend device utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the battery is discharged to the maximum extent to extend operational time, then the duration of action is improved, but the battery may reach damaging voltage levels and reliability deteriorates
Solution Approach 1:
The battery management unit performs preliminary actions by monitoring voltage levels and preemptively withholding power before the battery reaches damaging voltage thresholds. This prevents the battery from entering dangerous discharge states while still maximizing usable capacity, thereby extending operational time without compromising safety.
Solution Approach 2:
The system implements continuous feedback monitoring of battery voltage levels. The battery management unit receives real-time voltage information and dynamically adjusts power delivery to components based on current discharge state, ensuring the battery operates within safe voltage ranges while maximizing operational duration.
2Ease of operation
If power is continuously supplied to components to maintain functionality, then the ease of operation is improved, but the duration of action deteriorates due to increased energy consumption
Solution Approach 1:
The system dynamically adjusts power supply to components based on real-time battery voltage levels. As the battery discharges and voltage decreases, the battery management unit automatically reduces or withholds power to non-critical components, maintaining essential functionality while extending overall operational time.
Solution Approach 2:
The system changes operational parameters by adjusting power delivery levels to different components based on battery discharge state. When voltage reaches certain thresholds, the system modifies which components receive power and at what levels, optimizing the balance between functionality and duration.
3Reliability
If the battery management system monitors and withholds power at multiple voltage thresholds to prevent damage, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The battery management unit provides self-service by autonomously monitoring battery voltage and making decisions about power distribution without requiring complex external control systems. The integrated circuit performs all necessary monitoring and control functions internally, achieving high reliability through a relatively simple, self-contained design.
Data Source
AI summary
In one or more embodiments, one or more systems, methods, and/or processes may: charge a battery from a first end of discharge (EOD) voltage to a first voltage; discharge the battery to a second EOD voltage; in response to discharging the battery to the second EOD voltage, withhold power from one or more cells of the battery to at least one component of a system; charge, from the second EOD voltage to a second voltage, greater than the second voltage and less than the first voltage; discharge the battery to a third EOD voltage; in response to discharging the battery to the third EOD voltage, withhold power from the one or more cells to the at least one component; charge, from the third EOD voltage to a third voltage, greater than or equal to the second EOD voltage; and discharge the battery to the first EOD voltage.