Invention Reference Number
Oak Ridge National Laboratory has developed a novel wireless charging architecture for electric vehicles that integrates the vehicle’s existing traction drive components to simplify system design and reduce costs. This technology eliminates redundant hardware, resulting in improved efficiency and compactness without compromising performance. By integrating charging and traction functions, it enables a more streamlined and scalable approach to electric vehicle power systems—supporting the broader adoption of wireless charging infrastructure and advancing vehicle electrification.
Description
This technology presents an innovative wireless electric vehicle (EV) charging system that integrates key elements of the vehicle’s onboard traction drive inverter to function as part of the wireless power receiver. The approach removes the need for certain conventional components typically required for wireless power transfer systems, reducing system redundancy and thermal management complexity. The result is a simplified, high-performance wireless charger that achieves high power density and conversion efficiency while maintaining compatibility with existing EV architectures.
Validated through prototype testing at a medium power level, the system demonstrated strong efficiency even when integrated with standard EV hardware. The design maintains stable operation under various load and alignment conditions and is compliant with established electromagnetic field exposure guidelines. This integrated configuration supports compact, cost-effective deployment of wireless charging for both passenger and fleet vehicles.
Benefits
- Reduced hardware redundancy and system cost
- Simplified thermal management and improved efficiency
- Compact and lightweight design suitable for onboard integration
Applications and Industries
- Electric and hybrid vehicle manufacturers
- Wireless charging infrastructure providers
- Fleet and commercial EV operations
Contact
To learn more about this technology, email partnerships@ornl.gov or call 865-574-1051.
