Charging Device Function Negotiation for Bidirectional Battery Energy Flow
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing charging devices have a single function mode, limiting their ability to satisfy the charging or discharging requirements of electric devices in various application scenarios.
Innovation Solution
A device communication method and system that enables negotiation between charging devices and electric devices for charging and discharging functions, allowing for multiple function modes such as charging, discharging, or alternately charging and discharging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the charging device provides only a single charging function, then the device structure remains simple, but the adaptability to different application scenarios deteriorates
Solution Approach 1:
The charging device is designed to perform multiple functions including charging, discharging, and energy feedback operations. The device can switch between different operational modes based on negotiation with the electric device, allowing a single device to serve multiple purposes without requiring separate dedicated devices for each function.
2Loss of energy
If the charging device continuously charges the battery without discharging capability, then the charging process is simple, but the energy wastage increases due to inability to utilize released energy
Solution Approach 1:
The charging device incorporates an energy feedback mechanism that allows it to receive energy released by the battery during discharging operations. This feedback loop enables the device to utilize the released energy rather than letting it waste, improving overall energy efficiency. The device negotiates with the electric device to determine when to charge and when to discharge, optimizing energy utilization.
3Adaptability or versatility
If the charging device lacks discharging function negotiation, then the communication protocol remains simple, but the functional versatility deteriorates
Solution Approach 1:
The communication protocol is extended to support negotiation of multiple functional modes including charging, discharging, and energy feedback. The support function message structure is enhanced to carry additional information about discharging capabilities, allowing the devices to agree on the most appropriate operational mode based on their respective capabilities and current conditions.
Data Source
AI summary
A device communication method includes: establishing, by an electric device, a communication connection with a charging device; and performing, by the electric device, a function negotiation with the charging device through the communication connection. A service function of the function negotiation includes a charging and discharging function and/or a discharging function.