A novel BEV concept based on fixed and swappable li-ion battery packs

In this paper a novel battery electric vehicle (BEV) concept based on a small fixed and a big swappable li-ion battery pack is proposed in order to achieve: longer range, lower initial purchase price and lower energy consumption at short ranges. For short ranges the BEV is only powered by the relatively small fixed battery pack, without the large swappable battery pack. In this way the mass of the vehicle is reduced and therefore the energy consumed per unit distance is improved. For higher ranges the BEV is powered by both battery packs. This concept allows the introduction of subscription-based ownership models to distribute the cost of the large battery pack over the vehicle lifetime. A methodology is proposed for the analysis and evaluation of the proposed concept in comparison with a direct owned non swappable single pack BEV, proving that significant improvements on city fuel economy (up to 20 %) and economic benefits are achievable under several scenarios. These results encourage further study of battery swapping service plans and energy management strategies.

[1]  Torben N. Matzen,et al.  Motor Integrated Permanent Magnet Gear in a Battery Electrical Vehicle , 2013, IEEE Transactions on Industry Applications.

[2]  Andreas Jossen,et al.  Fundamentals of battery dynamics , 2006 .

[3]  Remus Teodorescu,et al.  Multi-Functional Converter with Integrated Motor Control, Battery Charging and Active Module Balancing for Electric Vehicular Application , 2014, 2014 IEEE Vehicle Power and Propulsion Conference (VPPC).

[4]  Alireza Khaligh,et al.  Battery, Ultracapacitor, Fuel Cell, and Hybrid Energy Storage Systems for Electric, Hybrid Electric, Fuel Cell, and Plug-In Hybrid Electric Vehicles: State of the Art , 2010, IEEE Transactions on Vehicular Technology.

[5]  Willett Kempton,et al.  Vehicle-to-grid power fundamentals: Calculating capacity and net revenue , 2005 .

[6]  Mitchell Lee,et al.  Battery storage: Comparing shared to individually owned storage given rural demand profiles of a cluster of customers , 2014, IEEE Global Humanitarian Technology Conference (GHTC 2014).

[7]  J. Apt,et al.  Lithium-ion battery cell degradation resulting from realistic vehicle and vehicle-to-grid utilization , 2010 .

[8]  Shuang Zhao,et al.  An Integrated 20-kW Motor Drive and Isolated Battery Charger for Plug-In Vehicles , 2013, IEEE Transactions on Power Electronics.

[9]  S Latham,et al.  A reference book of driving cycles for use in the measurement of road vehicle emissions , 2009 .

[10]  Dirk Uwe Sauer,et al.  Development and Validation of an Energy Management System for an Electric Vehicle with a split Battery Storage System , 2013 .

[11]  Jeremy Neubauer,et al.  A Techno-Economic Analysis of BEV Service Providers Offering Battery Swapping Services , 2013 .

[12]  Wonsuk Ko,et al.  Analysis of Consumer Preferences for Electric Vehicles , 2013, IEEE Transactions on Smart Grid.

[13]  Jeremy J. Michalek,et al.  Optimal Plug-In Hybrid Electric Vehicle Design and Allocation for Minimum Life Cycle Cost, Petroleum Consumption, and Greenhouse Gas Emissions , 2010 .

[14]  Erik Schaltz,et al.  Influence of Li-Ion Battery Models in the Sizing of Hybrid Storage Systems with Supercapacitors , 2014, 2014 IEEE Vehicle Power and Propulsion Conference (VPPC).

[15]  F. Baronti,et al.  Battery Management System: An Overview of Its Application in the Smart Grid and Electric Vehicles , 2013, IEEE Industrial Electronics Magazine.

[16]  Klaus Muhlback,et al.  The societal acceptance of private electro mobility in Germany and its perception by consumers: An empirical analysis of the status quo and the medium-term future expectations , 2015, 2015 5th International Electric Drives Production Conference (EDPC).

[17]  Dong-Myoung Joo,et al.  On the Feasibility of Integrated Battery Charger Utilizing Traction Motor and Inverter in Plug-In Hybrid Electric Vehicles , 2015, IEEE Transactions on Power Electronics.

[18]  Vilayanur V. Viswanathan,et al.  Second Use of Transportation Batteries: Maximizing the Value of Batteries for Transportation and Grid Services , 2011, IEEE Transactions on Vehicular Technology.

[19]  Dirk Uwe Sauer,et al.  Experimental investigation of the lithium-ion battery impedance characteristic at various conditions and aging states and its influence on the application , 2013 .

[20]  Alireza Khaligh,et al.  Influence of Battery/Ultracapacitor Energy-Storage Sizing on Battery Lifetime in a Fuel Cell Hybrid Electric Vehicle , 2009, IEEE Transactions on Vehicular Technology.

[21]  Rui Esteves Araujo,et al.  Combined Sizing and Energy Management in EVs With Batteries and Supercapacitors , 2014, IEEE Transactions on Vehicular Technology.

[22]  M. Broussely,et al.  Main aging mechanisms in Li ion batteries , 2005 .