Maximizing Power Transfer for Dynamic Wireless Charging Electric Vehicles
Dynamic (on the go) wireless electrical charging is a new, challenging frontier for vehicular technologies, as it would allow a dramatic increase in the feasible distance range of electrical vehicles. This paper presents a system under development for optimizing the power transfer for dynamic charging vehicles. The system relies on a coil coupling sensor and a camera. The coupling sensor measures the coupling level between the road and vehicle coils, while the camera detects the distance of the vehicle from the two lines of the lane. A sensor fusion system is needed because, on one hand, the coil sensor is highly accurate but cannot distinguish the direction of the misalignment, while the camera is less precise but can provide information about the position of the lane center, where the centroid of the transmitting coil is expected to be and complete a series of other non-magnetic information needed like the obstacle presence.
KeywordsWireless power transfer Electric Vehicles Alignment detection ICT Camera
This work was also supported by the European Commission under FABRIC, a collaborative project part of the FP7 for research, technological development and demonstration (Grant Agreement No. 605405). The authors would like to thank all partners within FABRIC for their cooperation and valuable contribution.
- 1.Cirimele, V., Diana, M., El Sayed, N., Freschi, F., Guglielmi, P., Piccoli, G.: An innovative next generation E-mobility infrastructure: The eCo-FEV project. In: 2014 IEEE International Electric Vehicle Conference (IEVC), pp. 1–7 (2014)Google Scholar
- 3.Prasanth, V., Bauer, P.: Study of misalignment for on road charging. In: 2013 IEEE Transportation Electrification Conference and Expo (ITEC), pp. 1–8 (2013)Google Scholar
- 4.Sukprasert, P., Nguyen, B.M., Fujimoto, H.: Estimation and control of lateral displacement of electric vehicle using WPT information. In: 2015 IEEE International Conference on Mechatronics (ICM), pp. 329–334 (2015)Google Scholar
- 5.Hwang, K., Park, J., Kim, D., Park, H.H., Kwon, J.H., Il Kwak, S., Ahn, S.: Autonomous coil alignment system using fuzzy steering control for electric vehicles with dynamic wireless charging. Math. Probl. Eng. 2015, 1–14 (2015)Google Scholar
- 8.Villa, J.L., Sallan, J., Osorio, J.F.S., Llombart, A.: High-misalignment tolerant compensation topology for ICPT systems. IEEE Trans. Ind. Electron. 59(2), 945–951 (2012)Google Scholar
- 9.Bucher, A., Duerbaum, T.: Analysis and design of a contactless power transmission system based on the extended first harmonic approximation. In: 2012 IEEE Industry Applications Society Annual Meeting, pp. 1–7 (2012)Google Scholar
- 10.Cirimele, V., Freschi, F., Guglielmi, P.: Wireless power transfer structure design for electric vehicle in charge while driving. In: 2014 International Conference on Electrical Machines (ICEM), pp. 2461–2467 (2014)Google Scholar
- 11.Hong, S., Smith, T., Borrelli, F., Hedrick, J.K.: Vehicle inertial parameter identification using extended and unscented Kalman filters. In: 16th International IEEE Conference on Intelligent Transportation Systems (ITSC 2013), pp. 1436–1441 (2013)Google Scholar