Battery Wake-Up Control for Low-Energy Thermal Management
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Solution Overview
Problem
Battery efficiency and quality are compromised at extreme temperatures due to continuous thermal management functions, which consume excessive energy and can damage the battery.
Innovation Solution
A system that monitors battery temperature and sends wake-up signals only when necessary to trigger thermal management, using constraints like hysteresis and signal rate limits to conserve energy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If thermal management functions are constantly active to maintain battery temperature, then battery quality and efficiency are protected, but energy consumption increases significantly
Solution Approach 1:
The patent implements periodic temperature monitoring at defined intervals (e.g., every 10 minutes) instead of continuous monitoring, and only activates thermal management functions when temperature thresholds are exceeded. This periodic action approach maintains battery protection while significantly reducing energy consumption by keeping the system in a low-power state during normal operating conditions.
Solution Approach 2:
The system performs preliminary temperature checks at scheduled intervals before critical temperature issues arise. By monitoring temperature periodically and activating thermal management only when needed, the system prepares for potential temperature problems in advance rather than reacting continuously, thereby reducing unnecessary energy consumption while maintaining battery reliability.
2Object-affected harmful factors
If thermal management functions are constantly active to prevent battery damage, then battery protection is improved, but energy is wasted
Solution Approach 1:
The patent employs periodic temperature monitoring instead of continuous monitoring, checking battery temperature at predefined intervals (e.g., every 10 minutes). Thermal management functions are only activated when temperature exceeds thresholds, preventing battery damage while avoiding continuous energy waste from unnecessary system operation.
Solution Approach 2:
The battery management system serves itself by autonomously monitoring its own temperature and activating thermal management only when actually needed. This self-service approach ensures battery protection while eliminating energy waste from constant system operation, as the system intelligently determines when intervention is necessary.
3Measurement precision
If the battery management system remains fully active to monitor and control temperature, then temperature control precision is maintained, but energy consumption increases
Solution Approach 1:
The patent implements periodic temperature monitoring at defined intervals (e.g., every 10 minutes) rather than continuous monitoring. This approach maintains sufficient temperature measurement precision to detect when thermal management is needed while significantly reducing energy consumption by keeping monitoring circuits in a low-power state between measurements.
Solution Approach 2:
The system changes the operational state of monitoring components based on temperature parameters. When temperature is within acceptable ranges, monitoring operates in a low-power periodic mode. When temperature thresholds are exceeded, the system transitions to active monitoring and control mode, optimizing the balance between measurement precision and energy consumption.
Data Source
AI summary
A computer system having processing circuitry to handle a battery arrangement is provided. The battery arrangement comprises a first battery cell and a cell monitoring unit. The cell monitoring unit is configured to monitor the first battery cell. The processing circuitry is configured to obtain by the cell monitoring unit, a first indication indicative of an estimated or measured temperature of the first battery cell. The processing circuitry is configured to, based on the estimated or measured temperature of the first battery cell in relation to a preferred temperature range of the first battery cell, determine whether or not to transmit a first wake up signal to a battery control module. The first wake up signal is arranged to indicate to the battery control module to trigger a thermal management function for the battery arrangement.