Dual-Battery Control for Mobility Emergency Power Balancing
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Solution Overview
Problem
Current battery management systems for mobility, especially in air-based applications, face challenges in efficiently controlling battery operations to extend lifespan and ensure emergency driving capabilities due to the lack of effective monitoring and control mechanisms for multiple batteries.
Innovation Solution
A battery control apparatus and system that includes an information obtaining unit and a controller to manage the operation of primary and secondary batteries, allowing for power assistance, balancing, and emergency mode activation based on mobility information, battery state, and abnormality detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a single primary battery is used to supply power to mobility, then the battery management system is simple, but the battery lifespan cannot be extended and emergency driving capability is lacking
Solution Approach 1:
The battery system is segmented into a primary battery (first battery) for main power supply and multiple secondary batteries (second batteries) as auxiliary power sources. This segmentation allows the primary battery to operate within optimal parameters for extended lifespan while secondary batteries provide emergency backup power, resolving the contradiction between extending battery lifespan and maintaining system simplicity.
2Reliability
If multiple secondary batteries are added as auxiliary power sources, then emergency driving capability is improved, but the system complexity and control difficulty increase
Solution Approach 1:
The control apparatus merges the management of primary and secondary batteries into a unified control system. The controller integrates monitoring of battery states (charge level, temperature, health) and automatically manages power distribution, charging, and discharging operations. This unified approach improves emergency driving capability while preventing control system complexity from becoming unmanageable.
Solution Approach 2:
The control apparatus implements feedback mechanisms that continuously monitor the state of charge (SOC), state of health (SOH), and temperature of all batteries. Based on this feedback, the controller dynamically adjusts power distribution, activates balancing operations when SOC deviation exceeds thresholds, and switches between normal and emergency driving modes. This feedback-driven control improves reliability while maintaining manageable system complexity through automated decision-making.
3Duration of action of stationary object
If active balancing control is implemented among secondary batteries, then battery degradation is reduced and lifespan is extended, but energy consumption and control complexity increase
Solution Approach 1:
The balancing control is implemented partially rather than continuously. The controller activates balancing operations only when the SOC deviation between secondary batteries exceeds a predetermined threshold. This partial action approach extends battery lifespan by preventing degradation from imbalance while minimizing energy consumption by avoiding unnecessary balancing operations during normal operating conditions.
Data Source
AI summary
Discussed is a battery control apparatus that may include an information obtaining unit configured to obtain information about a mobility, information about a first battery configured to supply power to a module included in the mobility, and information about a second battery provided in the module and configured to supply power to the module as an auxiliary power source for the first battery based on an operation of the mobility and a controller configured to generate a control signal for controlling an operation of the first battery and an operation of the second battery based on the information about the mobility, the information about the first battery, and the information about the second battery.