Adaptive Charging Current Control for Battery-Housing Heat Balance
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Solution Overview
Problem
Fast charging technologies generate excessive heat, affecting user experience and reducing the service life of terminal device components, and existing methods to mitigate this by reducing charging current when temperature is high result in low efficiency during heavy use.
Innovation Solution
A charging control method that adjusts the charging current based on the temperature difference between the battery and housing temperatures, identifying the actual charging scenario and using specific control parameters to balance heat generation and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If charging current is increased to achieve fast charging, then charging power is improved, but heat generation increases causing temperature rise
Solution Approach 1:
The patent implements dynamic charging current adjustment based on real-time temperature monitoring. The charging current is not fixed but varies dynamically according to temperature conditions, transitioning between different charging modes (standard charging, fast charging, balanced charging) to optimize both charging power and temperature control throughout the charging process
Solution Approach 2:
The patent changes the charging current parameter based on temperature thresholds. When temperature exceeds predefined thresholds, the system adjusts the charging current parameter to reduce heat generation, while maintaining high charging power when temperature is within acceptable ranges
2Temperature
If charging current is reduced to control temperature, then temperature rise is mitigated, but charging efficiency decreases
Solution Approach 1:
The system dynamically adjusts charging current based on temperature conditions, switching between standard charging mode (lower current for temperature control) and fast charging mode (higher current for efficiency) according to real-time temperature monitoring, thereby optimizing both temperature management and charging efficiency at different charging stages
Solution Approach 2:
The patent implements periodic temperature monitoring and charging mode switching. The system periodically checks temperature and transitions between different charging modes, allowing high-efficiency fast charging during cool periods while ensuring temperature control is maintained through periodic intervention
3Temperature
If charging current is reduced during heavy use, then temperature control is improved, but charging speed becomes unacceptably slow
Solution Approach 1:
The patent segments temperature control into two independent monitoring systems: battery temperature monitoring and housing temperature monitoring. Each temperature source triggers different charging modes independently, allowing the system to maintain fast charging when housing temperature is high but battery temperature is acceptable, thereby preserving charging speed while monitoring housing temperature
Solution Approach 2:
The system applies different temperature control strategies to different parts of the device. Battery temperature directly controls charging current to protect the battery, while housing temperature serves as a reference for scenario identification. This localized quality control allows optimized charging behavior for each temperature source
4Duration of action of stationary object
If temperature-based charging control is implemented, then component service life is extended, but charging time increases
Solution Approach 1:
The system dynamically transitions between charging modes based on temperature conditions, spending more time in fast charging mode when temperatures are low to reduce overall charging time, while switching to temperature-controlled standard charging only when necessary to protect component service life, thereby optimizing the balance between charging speed and component protection
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures efficient charging while maintaining safe temperature levels by adaptively adjusting the charging current according to the device's usage intensity, thereby extending component life and improving user experience.
Implementation Method 1
acquiring a battery temperature and a housing temperature
Data Source
Figure 1
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AI summary
The present application relates to a charging control method, an electronic device and a readable storage medium. The method comprises the steps of: acquiring a battery temperature and a housing temperature, and calculating the temperature difference between the battery temperature and the housing temperature (S10); matching an actual charging scenario corresponding to the temperature difference, and determining a charging control parameter corresponding to the actual charging scenario (S20); and adjusting an actual charging current on the basis of the charging control parameter (S30).