Dynamic Discharge Ratio Control for Multi-Pack Battery Systems
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Solution Overview
Problem
Conventional power management systems fail to efficiently manage the discharge ratio of multiple battery packs, leading to uneven battery decay and the need for custom or expensive solutions to meet power requirements in electronic devices.
Innovation Solution
A battery management system (BMS) that uses voltage converters to control the relative discharge of standard off-the-shelf battery packs, monitored by a microcontroller to balance the state of charge and health of each battery pack, allowing for independent discharge control based on real-time conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If conventional systems use multiple standard battery packs to meet power requirements, then power requirements can be met, but the battery packs discharge unevenly leading to imbalance in state of charge and state of health
Solution Approach 1:
The system dynamically adjusts the discharge ratio parameters of multiple battery packs based on real-time monitoring of state of charge and state of health. The microcontroller modifies discharge current distribution to maintain balance, preventing uneven decay while meeting power requirements.
Solution Approach 2:
The system implements continuous feedback monitoring of battery pack parameters including state of charge and state of health. Based on this feedback, the microcontroller dynamically adjusts the discharge ratio to maintain balance between battery packs, ensuring reliable operation.
2Productivity
If custom battery packs are designed to meet power requirements, then power management efficiency improves, but development cost and time increase
Solution Approach 1:
The system creates a universal power management solution that works with multiple standard battery pack configurations. The dynamic discharge ratio control mechanism can adapt to different battery pack combinations, eliminating the need for custom-designed battery packs while maintaining efficient power management.
Solution Approach 2:
The system enables standard battery packs to self-regulate their discharge through the control mechanism. The microcontroller automatically manages the discharge ratio based on real-time conditions, allowing the system to optimize power management without requiring custom-engineered battery packs.
3Power
If multiple battery packs discharge simultaneously to meet power requirements, then power delivery is sufficient, but output voltage must be in similar state which limits flexibility
Solution Approach 1:
The system dynamically adjusts the discharge ratio of each battery pack in real-time based on their individual states. This dynamic control allows battery packs with different output voltages and characteristics to discharge simultaneously while maintaining system stability and meeting power requirements.
Data Source
AI summary
Methods and systems are provided for an electronic device. One method includes storing a data structure at a memory device by a processor, where the data structure is configured to store a plurality of parameters used for determining a discharge ratio of a first battery pack and a second battery pack of a charging system of a device, the discharge ratio indicating a relative rate of discharge of the first battery pack and the second battery pack; detecting by the processor, a discharge condition associated with at least one of the first battery pack and the second battery pack; utilizing by the processor, the data structure for determining the discharge ratio; and controlling by the processor, based on the determined discharge ratio, a discharge rate of the first battery pack using a first voltage controller and a discharge rate of the second battery pack using a second voltage controller.