Electromobility is an important part of the energy transition, since electricity can be used from environmentally friendly, regenerative sources while driving. For an optimal and cost-effective use of electric cars, a communication between different charging stations, the driver and the battery system of the vehicle is necessary. Within the framework of the Fraunhofer System Research for Electromobility, Fraunhofer IIS deals with the communication technology integration of electric vehicles into the surrounding infrastructure.
In the case of conductive charging, communication is implemented via the charging cable for safety reasons – at least in large part. The future use of inductive charging systems in electric vehicles requires a reliable wireless communication interface for controlling and monitoring the charging process. This interface should ensure the unique, wireless assignment of the vehicle to the charging station and transmit simple control information for monitoring the charging process or for optimal positioning of the vehicle without contact. Fraunhofer IIS with its expertise in the field of wireless communication is working on a solution based on inductive near-field communication.
Electromobility requirements for communication infrastructure:
- Record usage and availability requests of the vehicle user
- Record specifications for the optimal use of electrical energy from the power grid
- Communication with the Smart Grid
- Match usage requirements with specifications from the power grid
- Determine optimal charging strategy that can be changed as needed
- Document specifications from the power grid and capture energy
- Provide data for the billing process