BRUSA Elektronik AG, an automotive Tier 1 power electronics supplier, has licensed Qualcomm Incorporated’s Halo (earlier post) patented inventions to commercialize Wireless Electric Vehicle Charging (WEVC) systems for Plug-In Hybrid and Electric Vehicles (EVs). Under the terms of the agreement, Qualcomm granted to BRUSA a royalty-bearing patent license to develop, make and supply WEVC systems for certain automobile manufacturers.
BRUSA, which has been working on its own Inductive Charging System (ICS) for wireless power transfer (WPT), developed its own coil geometry: FRAME technology. The coil is rectangular and enables inductive charging of electric vehicles with the integration of power electronics both in the vehicle and in the base plate, enabling a one-box system.
|From a Qualcomm Halo infographic. Click to enlarge.|
The first generation ICS from BRUSA is rated at 3.7 kW and has been available since 2014 to car manufacturers for functional testing.
Qualcomm Halo uses high-power, resonant magnetic inductive wireless energy transfer and supports a relatively wide air gap between base charging unit (BCU) and vehicle charging unit (VCU).
The charging pad’s multi-coil design (“Double “D” Quadrature”) delivers high energy-transfer efficiency and high power—3.3 kW, 6.6 kW or 20 kW—even if the pads are misaligned. The high degree of tolerance in both the vertical (z) and lateral (x,y) planes means drivers do not have to park accurately or need complex and expensive on-board alignment systems.
Qualcomm Halo licensees can bring to market highly efficient, fit-for-purpose, WEVC systems, which allow convenient charging and improve the EV driver’s user experience. We believe access to Qualcomm Halo technology is important to building WEVC systems that meet the needs of automotive OEMs and their end-customers, including WEVC systems incorporating magnetics based on a circular coil structure.—Steve Pazol, vice-president & general manager wireless charging, Qualcomm Incorporated
Wireless charging will win, it will give e-mobility a big boost, it will set new, sustainable technology apart from old gasoline-based technology. We are determined to make wireless charging a reality. We already offer technically sound and commercially viable systems to the market and we are excited about the potential of wireless charging.—Josef Brusa, CEO of BRUSA Elektronik AG