1. Technical University of Denmark, Anker Engelunds Vej 101, Kogens Lyngby 2800, Denmark
2. Department of Control for Transportation and Vehicle System, Faculty of Transportation Engineering and Vehicle Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3, Budapest 1111, Hungary
3. Department of Transport Technology and Economics, Faculty of Transportation Engineering and Vehicle Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3, Budapest 1111, Hungary