Battery Charging Pause Control for Temperature-Limited Modules
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Solution Overview
Problem
Existing battery cell packs lack effective temperature control during charging, leading to potential safety risks and inefficiencies due to unregulated charging currents.
Innovation Solution
Implementing a system that measures temperature, compares it to an upper threshold, and adjusts charging current accordingly, switching to a pause mode when the temperature exceeds the threshold, and operates circuit components in a low power mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If charging current is continuously supplied to the battery cell packs, then charging speed and productivity are improved, but temperature control and safety are worsened due to potential overheating
Solution Approach 1:
The patent implements periodic charging action by alternating between charging mode and cooling mode. The controller supplies charging current during charging mode, then interrupts the charging current and activates cooling fans during cooling mode when temperature reaches threshold. This periodic on-off charging action enables fast charging while preventing overheating, resolving the contradiction between charging speed and temperature control.
Solution Approach 2:
The patent employs temperature feedback control by continuously monitoring battery temperature via temperature sensors and adjusting charging current accordingly. When temperature exceeds the upper threshold, the controller reduces or interrupts charging current; when temperature is within safe range, normal charging resumes. This feedback mechanism ensures safe charging operations while maintaining high charging efficiency.
2Reliability
If temperature monitoring and control mechanisms are added to the battery system, then safety and temperature control are improved, but device complexity increases
Solution Approach 1:
The patent implements self-service temperature control where the battery management system automatically monitors temperature, compares it with preset thresholds, and adjusts charging current without external intervention. The controller autonomously switches between charging mode and cooling mode based on real-time temperature feedback, eliminating the need for complex external control systems while ensuring safety.
Solution Approach 2:
The patent simplifies the control system by changing operational parameters (charging current magnitude) rather than adding complex control hardware. The system maintains constant current charging within safe temperature limits by adjusting current levels based on temperature feedback, rather than implementing complex active cooling systems or multiple control circuits.
Data Source
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AI summary
Systems, methods and software products for controllably charging at least one energy storage element of an energy storage module. The methods comprise: measuring a temperature of the energy storage module; comparing the temperature to an upper threshold value; allowing a charging current to be supplied to the energy storage module for charging the at least one energy storage element when the temperature is below the upper threshold value; and placing the energy storage module in a charging pause mode when the temperature reaches or rises above the upper threshold value, whereby at least one circuit component of the energy storage module is caused to operate in a low power mode and the charging current is no longer being supplied to the at least one energy storage element.