EV Charging Adapter Protocol Translation
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Solution Overview
Problem
Existing plug-in charging systems for electric vehicles are not compatible with different data communication technologies, such as power-line transmission and CAN bus, which limits the ability to fast charge vehicles with varying charging systems, like CHAdeMO and CCS, at different charging stations.
Innovation Solution
An adapter that includes a processing unit to convert data between power-line and CAN bus protocols, allowing electric vehicles with CCS systems to be charged at CHAdeMO stations, and vice versa, by enabling communication through pulse-width modulation and power-line communication, ensuring compatibility and enabling fast charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If different data communication technologies (power-line transmission and CAN bus) are used in vehicle-side and station-side charging systems, then each system can operate with its own optimized protocol, but compatibility between vehicle and station is lost, preventing charging across different standards
Solution Approach 1:
The patent introduces an intermediary device that acts as a bridge between the vehicle-side charging system and station-side charging system. This intermediary contains both a power-line communication interface and a CAN bus interface, translating data packets between the two different communication protocols. The intermediary device receives data from one protocol, converts it to the other protocol, and transmits it to the corresponding system, thereby enabling compatibility without requiring either system to change its native communication technology.
2Adaptability or versatility
If a universal charging system supporting multiple data communication protocols is designed, then compatibility across different charging standards is achieved, but device complexity increases significantly
Solution Approach 1:
The patent divides the charging system into three separate functional segments: the vehicle-side charging system with its native protocol, the station-side charging system with its native protocol, and a separate intermediary translation device. Each segment maintains its own simplified data interface optimized for its specific protocol, avoiding the complexity that would arise from integrating multiple protocols into a single system. The intermediary device handles the complexity of protocol translation independently, allowing the vehicle and station systems to remain simple and focused.
Data Source
AI summary
Adapter for the electric charging of an electric vehicle according to a vehicle-side plug-in charging system at a charging station according to a station-side plug-in charging system that is different from the vehicle-side plug-in charging system, the adapter having a charging socket according to the station-side plug-in charging system, a charging plug according to the vehicle-side plug-in charging system, a data interface according to a data communications technology of the vehicle-side plug-in charging system, and a data interface according to a data communications technology of the station-side plug-in charging system.