Battery Module Discharge Calibration With Adaptive SOC Current Control
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Solution Overview
Problem
Conventional battery module calibration devices have complex structures with numerous connection cables, making them difficult for non-professionals to operate and leading to inaccuracies in State of Charge (SOC) determination.
Innovation Solution
A discharge calibration apparatus for battery modules featuring a simplified design with a battery module interface, load component, and electric control component that acquires cell parameters to regulate output current and voltage, using switching transistors to calibrate SOC accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional calibration device is used, then the battery module can be calibrated, but the device structure becomes complex with numerous connection cables
Solution Approach 1:
The patent integrates multiple calibration functions into a single calibration device that can simultaneously connect to and calibrate multiple battery modules. The device combines voltage detection circuits, current control circuits, and communication modules into one unified system, eliminating the need for separate calibration devices for each battery module and reducing overall system complexity.
Solution Approach 2:
The calibration device is designed with universal interfaces and standardized connection protocols that allow it to work with different types of battery modules. The device can perform multiple functions including voltage measurement, current control, SOC calibration, and communication, making it adaptable to various calibration scenarios without requiring additional specialized equipment.
2Reliability
If a conventional calibration device with complex structure is used, then calibration can be performed, but operations become complicated and unsuitable for non-professionals
Solution Approach 1:
The calibration device incorporates automatic detection and adaptive control features that allow it to self-configure when connected to a battery module. The device automatically detects battery parameters, selects appropriate calibration protocols, and adjusts control parameters without requiring manual configuration by the operator, making it user-friendly for non-professionals while maintaining calibration accuracy.
Solution Approach 2:
The device includes real-time monitoring and feedback mechanisms that display calibration progress, battery status, and system parameters to the user through an interface. This feedback allows operators to understand what is happening during calibration, verify proper operation, and trust the automated process, reducing the need for complex manual procedures.
3Adaptability or versatility
If additional battery modules are directly connected to the original system without calibration, then system expansion is achieved, but SOC deviation increases and actual battery capacity cannot be fully utilized
Solution Approach 1:
The calibration device performs preliminary SOC calibration on newly added battery modules before they are integrated into the main system. This preliminary action ensures that the SOC values of additional modules are accurate and synchronized with the existing system, preventing SOC deviation and enabling full utilization of the expanded battery capacity.
Data Source
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AI summary
A battery module discharge calibration apparatus and a battery module discharge calibration method. The battery module discharge calibration apparatus comprises: a battery module interface, used for connecting a battery module; a load assembly, the load assembly being electrically connected to the battery module interface, and when the battery module is connected to the battery module interface, the load assembly being used for consuming electric energy output by the battery module; and an electric control assembly, a communication end of the electric control assembly being connected to the battery module interface, and a control end of the electric control assembly being connected to the load assembly. The electric control assembly is used for acquiring battery cell parameters in the battery module when the battery module is connected to the battery module interface, and controlling, according to the battery cell parameters, the load assembly to consume the electric energy output by the battery module. When determining, according to the battery cell parameters, that the voltage of the battery module reaches a preset voltage threshold value, the electric control assembly is further used for adjusting the output current of the battery module according to the battery cell parameters, and performing SOC calibration for the connected battery module. The present application can solve the problem of existing calibration apparatuses being complex to use.