Balanced Charging of Electric Vehicles

The goal of the iMove project is the system-optimal charging of electric vehicles. That is, not only the volume of traffic but also the condition of the underlying electrical network must be taken into account.


In the future, the growing number of electric vehicles on the roads will lead to new challenges for both the traffic and the energy system. Therefore, the BMWi funded project iMove deals with such a problem in the field of electromobility. Within the project we focus on the current situation in the city of Stuttgart. We analyze current real data on charging behavior, road and energy networks. Moreover, we forecast future bottlenecks within these systems based on the data and counteract bottlenecks by means of incentive and control mechanisms developed in the project. For example, the electric vehicles are navigated to available charging stations in such a way that on the one hand the traffic flow is not obstructed and on the other hand the underlying electric network is not overloaded by the charging behavior. The navigation proposals and other incentives will be optimized with regard to the interests of the individual electric vehicle driver as well as with regard to the interests of the infrastructure providers for traffic and electricity systems. This optimization problem stands out from other scientific problems in the field of electromobility in particular by taking into account the state of the energy grid.



  • Creating an integrated database which includes the raw data of the transport system, the charging infrastructure and the energy system
  • Implementation of a backend data server via which the anonymized data of all project partners is bundled and made available
  • Determination of future bottlenecks on the basis of condition, demand and capacity utilization forecasts for electric fleets, traffic routes and the electricity supply system
  • Development of incentive and control mechanisms which allow the system-optimal influencing of electrified vehicles to avoid the predicted bottlenecks in mobility and electricity supply systems
  • Validation of results with regard to applicability, scalability and transferability


In this project, we are cooperating with two other chairs of the RWTH Aachen University: the Chair of Operations Management and the Institute of Urban and Transport Planning. Furthermore, we are partnering with the following industrial partners: TomTom as mobility service provider, Hubject as charging service provider, Stattwerke Stuttgart as energy supplier and Soptim as energy manager. Due to the different expertise that the individual project partners bring to the project, as well as the different points of view, it is possible to take the interests of the different system actors into account. For this purpose, we consider scenarios tailored to these various requirements.