Opens in a new window

Chart displaying the energy and information flows controled by the energy-management-system.

© DLR Institut für Vernetzte Energiesysteme e.V.

The establishment of an inductive interface between the electric vehicle and the house will be of particular interest to owners of vehicles who only occasionally drive their cars, as it will enable them to use their traction battery as a quasi-stationary house storage device.

New hardware and software developed in this project will make it possible for electricity to flow inductively between the electric car and the house, both for charging and for discharging. Coils at the parking space and on the underside of the vehicle will enable the exchange of energy. In order to optimise the energy flow and to simultaneously ensure that the traction batteries last for as long as possible, the project partners coordinated by B2M Software GmbH also researched intelligent control algorithms.

They developed an app which “visualises” the energy flow between the smart home and the vehicle for the user. At the same time, this control element will make it possible to set the desired operating range of the battery for a specific time. Security is a top priority in this context: the interface has been specially secured so that only authorised users can access the data and the control system.
In this project, the household and electric car loads as well as the electricity fed in from a PV system were simulated on a test stand. The entire system was then tested in field trials.

The "Drahtlos" research project was funded by the Federal Ministry of Economics and Energy (BMWi) from January 2016 to December 2018.