Recognizing the importance of a single approach for DC fast charging for future electric vehiles, Audi, BMW, Daimler, Ford, General Motors, Porsche and Volkswagen have agreed on a combined charging system as an standardized international approach to charge electric vehicles (EV) in Europe and the United States.
The system integrates all charging scenarios into one vehicle inlet/charging connector, and uses identical ways for the vehicle to communicate with the charging station.
This means electric vehicles from the seven automakers can share the same fast charging stations.
The seven believe the development of a common charging approach is good for customers and charging infrastructure providers. Standardization will reduce complexity, accelerate the installation of common systems internationally and, most importantly, improve the ownership experience for EV drivers.
The endorsement of the combined charging system was based on reviews and analysis of existing charging strategies, ergonomics and the preference of customers in both the US and Europe.
The harmonized approach will also provide a framework for future infrastructure planning as well as a communication protocol to assist in the integration of electric vehicles into the smart grids – with HomePlug Green Phy used as the communication protocol to facilitate integration of vehicles into future smart grid applications.
Automakers point to the success of Level 1 and Level 2 (for 220V charging in the US) as an example of how standardization will increase the adoption of electric vehicles and increased customer satisfaction.
The harmonized electric vehicle charging solution is backward compatible with the J1772 connector standard in the US.
Backward compatibility has also been achieved in Europe, where the system is based on the IEC 62196 Type 2.
The approval of the J1772 standard means electric vehicle owners can charge at all Level 2 charging stations. Prior to standardization, an EV owner had no way of knowing if the charge port they were pulling up to was compatible with their vehicle.