e-NUE: Co-Simulation of Electrified and Connected Vehicles


The transition from classic combustion engine to electric vehicles is a major step to reduce worldwide CO2 emissions. In order to correctly and efficiently investigate impacts on the electric grid and the dimensioning of charging infrastructure, or to explore new technologies for a further increase of the driving range, realistic simulation models are required.
In this project we develop an accurate yet computationally inexpensive battery and kinematic model - including recuperation and a range extender module - to be used in microscopic traffic simulation and to help study the performance of thousands of electric vehicles. The overall power balance is derived from the vehicle’s speed and a set of constant predefined parameters only, therefore the model can be easily coupled with current sophisticated traffic simulators (SUMO). The long period of the field trial (Schaufenster Elektromobilität, e-NUE) provides the necessary data and allows to validate the model's behavior.
Another research focus is on the incremental substitution of combustion driven cars in vehicle fleets of companies. The simulations shed light on several questions: Regarding, for example, the optimal degree of electrification with respect to the utilization profile of the fleet, or the required charging infrastructure.
In order to investigate the optimization potential of Inter Vehicular Communication (IVC) on the power consumption, the vehicle model is extended by modules reflecting wireless communication devices. Based on that, a co-simulation framework - coupling traffic and network simulation (Veins) - is used to calculate the impact of Intelligent Transportation Systems (ITSs) on electrified vehicles.

  • Keywords: electromobility, modeling, co-simulation, IVC
  • Project Period: 2013-07-01 - 2015-12-31

Project Members

Project Partner

Audi AG
N-ERGIE Aktiengesellschaft

  1. David Eckhoff and Christoph Sommer, "Simulative Performance Evaluation of Vehicular Networks," in "Vehicular Communications and Networks: Architectures, Protocols, Operation and Deployment", Wai Chen (Ed.), Elsevier/Woodhead Publishing, pp. 255-274, 2015
  2. Rüdiger Berndt, Sebastian Schellenberg, David Eckhoff and Reinhard German, "Modeling IVC-based Energy Savings of Electric Vehicles," 7th IEEE Vehicular Networking Conference (VNC 2015), Kyoto, Japan, December 2015
  3. Christian Bewermeyer, Rüdiger Berndt, Sebastian Schellenberg, Reinhard German and David Eckhoff, "Poster: cOSMetic - Towards Reliable OSM to SUMO Network Conversion," 7th IEEE Vehicular Networking Conference (VNC 2015), Kyoto, Japan, December 2015
  4. Rüdiger Berndt, Sebastian Schellenberg, David Eckhoff and Reinhard German, "A Lightweight Simulation Framework for the Analysis of Electrified Vehicle Fleets," 81th IEEE Vehicular Technology Conference Spring (VTC 2015-Spring), Glasgow, Scotland, May 2015
  5. Sebastian Schellenberg, Rüdiger Berndt, David Eckhoff and Reinhard German, "How Electric Vehicles Can Benefit from Vehicular Networking," 3rd GI/ITG KuVS Fachgespräch Inter-Vehicle Communication (FG-IVC 2015), Ulm, Germany, March 2015
  6. Robert Bodenheimer, Alexej Brauer, David Eckhoff and Reinhard German, "Enabling GLOSA for Adaptive Traffic Lights," 6th IEEE Vehicular Networking Conference (VNC 2014), Paderborn, Germany, pp. 167-174, December 2014  
  7. David Eckhoff, Mykola Protsenko and Reinhard German, "Toward an Open Source Location Privacy Evaluation Framework for Vehicular Networks," 80th IEEE Vehicular Technology Conference Fall (VTC 2014-Fall), Vancouver, BC, Canada, pp. 1-2, September 2014  
  8. Ekaterina Masalkina, David Eckhoff, Rüdiger Berndt and Reinhard German, "Towards the City-scale Simulation and Performance Assessment of Electric Vehicles," 2nd GI/ITG KuVS Fachgespräch Inter-Vehicle Communication (FG-IVC 2014), Luxembourg, Luxembourg, pp. 13-16, February 2014
  9. Sebastian Schellenberg, Rüdiger Berndt, David Eckhoff and Reinhard German, "A Computationally Inexpensive Battery Model for the Microscopic Simulation of Electric Vehicles," 80th IEEE Vehicular Technology Conference Fall (VTC 2014-Fall), Vancouver, BC, Canada, pp. 1-6, September 2014  
  10. Sebastian Schellenberg, Rüdiger Berndt, Reinhard German and David Eckhoff, "Evaluating the Electrification of Vehicle Fleets Using the Veins Framework," Proceedings of the 1st OMNeT++ Community Summit 2014, Hamburg, Germany, September 2014
  11. David Eckhoff, Bastian Halmos and Reinhard German, "Potentials and Limitations of Green Light Optimal Speed Advisory Systems," 5th IEEE Vehicular Networking Conference (VNC 2013), Boston, MA, USA, pp. 103-110, December 2013  
  12. David Eckhoff, Christoph Sommer and Falko Dressler, "On the Necessity of Accurate IEEE 802.11p Models for IVC Protocol Simulation," 75th IEEE Vehicular Technology Conference (VTC2012-Spring), Yokohama, Japan, pp. 1-5, May 2012  
  13. Christoph Sommer, Reinhard German and Falko Dressler, "Bidirectionally Coupled Network and Road Traffic Simulation for Improved IVC Analysis," in IEEE Transactions on Mobile Computing vol. 10 (1), pp. 3-15., 2011  

NewsRSS

Co-Simulation (Automotive) overview

Two accepted papers at VNC 2017

Both of our papers submitted to the IEEE Vehicular Network Conference 2017 to be held in Torino, Italy got accepted. The papers called "A Stochastic V2V LOS/NLOS Model Using Neural Networks for Hardware-In-The-Loop Testing" and "Multi-hop for GLOSA Systems: Evaluation and Results from a Field Experiment" are collaborations together with our external PhD students at AUDI Christina Stadler and Rainer Stahlmann as well as our alumnus David Eckhoff at TUMCREATE in Singapore. The conference is one of the most important platforms for the scientific exchange between researchers in the field of vehicular networks.

Published on 2017-10-10 04:10:12 (Permalink)

5th GI/ITG KuVS Fachgespräch Inter-Vehicle Communication

The chair of Computer Science 7 (Computer Networks and Communication Systems) organized the 5th GI/ITG KuVS Fachgespräch Inter-Vehicle Communication (FG-IVC 2017), April 6-7 2017. Under the presence of a local television channel, numerous participants from the IVC-Community were initially inspired by a very interesting impulse speech by Dr. Sigfried Balleis (former mayor of the city of Erlangen and team member of the "German Innovation Lab"). Afterwards, young researchers have presented and discussed their current research topics. Further information: http://www7.cs.fau.de/fgivc2017  

Published on 2017-04-03 18:11:28 (Permalink)

Three papers at VNC 2016

The Chair Computer Science 7 for Computer Networks and Communication Systems is going to present three papers at this year's Vehicular Networking Conference (VNC 2016) in Columbus, Ohio. The conference is one of the most important platforms for the scientific exchange between researchers in the field of vehicular networks. The research team around David Eckhoff and Reinhard German will be presenting their work on the impact of antenna patterns on VANET simulations, a holistic approach to solve the location privacy problem in vehicular networks, and, in collaboration with Rainer Stahlmann from AUDI, new methods and results in the field of vehicle-to-traffic light communication. The conference will take place from 8th to 10th of December. More information can be found at http://www.ieee-vnc.org/.

Published on 2016-10-28 05:39:52 (Permalink)

Final steps of project e-NUE

The project e-NUE is now almost successfully completed. The objects of study of the second wave (AUDI A3 e-tron) have been already returned to the AUDI AG in September 2015. In the subsequent data analysis period, all developed computer models were successfully validated with regard to the behaviour of the real-world vehicles. At this moment, all relevant scientific results are subject to documentation. We want to express our thanks for three years of intensive and productive cooperation together with the AUDI AG and the N-ERGIE Aktiengesellschaft.

Published on 2016-02-03 16:03:39 (Permalink)

Project e-NUE: Handover of 2nd wave of vehicles

In the project e-NUE the second wave of electric vehicles will be handed over on 27 September 2014. 6 Audi A3 e-tron cars will be used in a field trial to test electric cars in commercial fleets.

http://www.elektromobilitaet-verbindet.de/projekt-e-tron-e-nue-startet-in-phase-2.html

audi_etron_N_0751

Source: Stefan Bösl/AUDI AG

audi_etron_N_0189

Source: Stefan Bösl/AUDI AG

Published on 2014-09-24 19:31:36 (Permalink)