Battery Power Limit Control for Event-Driven Emergency Supply
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Solution Overview
Problem
Existing battery management systems limit charging and discharging power to extend battery life, which can lead to power shortages or prolonged charging times during high power demand situations, such as disasters or outdoor events.
Innovation Solution
A controller adjusts the upper limit values of charging and discharging power based on predetermined events, increasing them during high demand to ensure power supply and rapid charging, while reducing them during normal conditions to conserve battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the upper limit value of discharging power is increased to supply power to more devices during high demand situations, then the power supply capability is improved, but the battery deterioration accelerates
Solution Approach 1:
The patent applies dynamics by making the upper limit value of discharging power adjustable rather than fixed. The controller dynamically changes the discharging power limit based on detected event types (e.g., disasters, outdoor events) and battery state of charge, allowing the system to adapt between conservative mode (lower limit for battery protection) and emergency mode (higher limit for power supply capability).
Solution Approach 2:
The patent changes the parameter of discharging power upper limit based on event conditions and battery state. By detecting specific events and battery charge levels, the system adjusts the power limit parameter to appropriate values, enabling flexible response to different operational scenarios while balancing power supply needs and battery protection.
2Loss of time
If the upper limit value of charging power is increased to reduce charging time during high demand situations, then the charging speed is improved, but the battery deterioration accelerates
Solution Approach 1:
The patent applies dynamics by making the upper limit value of charging power adjustable based on detected events and battery state. The controller dynamically sets charging power limits to appropriate values depending on whether it's an emergency situation requiring rapid charging or normal operation where battery protection is prioritized.
Solution Approach 2:
The patent changes the charging power upper limit parameter based on event conditions and battery state of charge. By detecting specific events and current charge levels, the system adjusts the charging power parameter to optimize between charging speed and battery protection.
3Reliability
If the upper limit value of discharging power is limited to protect battery life during normal conditions, then the battery life is extended, but the power supply capability is reduced
Solution Approach 1:
The patent applies dynamics by implementing a controllable upper limit for discharging power that can be adjusted based on detected events. During normal operations, the system maintains a conservative power limit to protect battery life, while during detected emergencies or outdoor events, the system dynamically increases the power limit to enhance power supply capability when needed.
4Reliability
If the upper limit value of charging power is limited to protect battery life during normal conditions, then the battery life is extended, but the charging speed is reduced
Solution Approach 1:
The patent applies dynamics by implementing a controllable upper limit for charging power that adapts based on detected events and battery state. During normal conditions, the system uses a conservative charging power limit to extend battery life, but during emergencies or when battery charge level is low, the system dynamically increases the charging power limit to reduce charging time.
Data Source
AI summary
An upper limit value of discharging power of a battery mounted on a moving object is made larger when a predetermined event has occurred than when it has not occurred.