Adaptive Charging Control for Fast Charging Heat Management
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Solution Overview
Problem
The increasing charging speed of terminal devices generates excessive heat, affecting charging efficiency and user experience, and existing charging strategies fail to adapt to individual user habits and device states.
Innovation Solution
A charging control method that dynamically adjusts charging strategies based on battery electric quantity and current state information, including display screen status and power consumption, to optimize charging efficiency and temperature management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If charging power is increased to improve charging speed, then charging efficiency is improved, but temperature increases and charging efficiency deteriorates
Solution Approach 1:
The charging control method dynamically adjusts charging parameters (current, voltage, power) in real-time based on battery state (temperature, charge level, health) rather than using fixed charging rates. The system transitions between different charging stages (constant current, constant voltage, tapering) to optimize both speed and temperature control.
Solution Approach 2:
The method changes multiple charging parameters simultaneously including current, voltage, power, and time duration based on battery state. Different charging strategies are applied at different charge levels (e.g., higher power at 0-50%, reduced power at 50-80%, very low power at 80-100%) to balance speed and temperature.
2Temperature
If charging current is reduced to lower temperature, then temperature control is improved, but charging speed decreases
Solution Approach 1:
The charging process is divided into multiple stages and time periods (first time period, second time period, third time period) with different current profiles. The system segments the charge level range into zones (e.g., 0-50%, 50-80%, 80-100%) and applies appropriate current levels to each segment to optimize both speed and temperature control.
Solution Approach 2:
The charging method uses periodic pulse charging patterns with alternating charging and rest periods. During charging phases, current is applied; during rest phases, current is reduced or stopped to allow heat dissipation. This periodic action prevents continuous heat accumulation while maintaining overall charging progress.
3Device complexity
If fixed charging strategy is used to simplify control, then device complexity is reduced, but adaptability to user habits and device states deteriorates
Solution Approach 1:
The system continuously monitors battery state (temperature, charge level, voltage, current) and uses this feedback to adjust charging parameters in real-time. The control algorithm receives feedback from sensors and modifies charging strategy accordingly, enabling adaptation to different battery conditions and user preferences without requiring complex manual configuration.
Solution Approach 2:
The charging system automatically determines and adjusts its own parameters based on battery state and pre-configured user preferences. The device self-regulates charging current, voltage, and power without user intervention, adapting to battery health, temperature conditions, and charge level automatically through embedded control algorithms.
Data Source
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AI summary
A charging control method and apparatus, an electronic device, and a storage medium, the charge control method includes: obtaining a battery electric quantity of the terminal device and current state information of the terminal device (101); determining a target charging strategy according to the battery electric quantity and/or the current state information (102); and controlling the terminal device to be charged according to the target charging strategy (103).