Wireless Electric Vehicle Charging
NREL is investigating the requirements and feasibility of wireless electric vehicle charging.
High-power, in-road, dynamic wireless charging could go a long way toward realizing the potential of charge-sustaining electric vehicle operation (i.e., unlimited range with in-route recharge) while enabling the use of smaller, cheaper batteries.
Research focuses on associated hardware, communication, system planning, and control strategy needs, as well as its potential to be cost-competitive with conventional fast-charging technologies.
Researchers are looking at various interrelated variables to design an optimized system:
- Roadway classes to be electrified
- Roadway charging segment locations and lengths
- Charging power levels
- System interoperability to serve a range of vehicle classes (i.e., light-, medium-, and heavy-duty)
- Appropriate battery capacity to enable charge-sustaining operation for long-distance travel
- Feasibility of wireless charging for shared automated electric vehicles.
To do this, they're employing real-world global positioning system data from the Transportation Secure Data Center and Fleet DNA repositories along with NREL’s EVI-InMotion, the Electric Vehicle Infrastructure – In Motion Tool, a system planning and optimization tool.