DoE Support Hyundai-Kia America Technical Center-Mojo Work
Aimed at Boosting Appeal of EVs by Making Charging Convenient
Michigan’s Hyundai-Kia America Technical Center, Inc. is working with Santa Clara, Calif.-based Mojo Mobility to further develop a versatile and efficient wireless system for electric vehicle charging. updated July 20
“Wireless charging technology has the potential to significantly enhance the convenience of electric vehicles – and thereby increase the appeal and acceptance among consumers – while possibly enabling smaller battery pack sizes and reduced vehicle weight,” HATCI says.
The partners are moving into the third stage of a three-phase project backed by EERE, the U.S. Department of Energy’s Office of Energy Efficiency and Renewable Energy via NETL, the National Energy Technology Laboratory.
Flexible and Efficient – 92%
The goal is to demonstrate real-world durability, interoperability, safety, and performance of the Mojo system, which is said to be more efficient than other wireless charging products, and more tolerant of car-to-charger misalignment.
The collaboration started before Kia unveiled the Song EV, which is the platform for the current work, says Mojo Mobility CEO Afshin Partovi. Overall, it’s a $6 million effort, he says.
During phase one, according to a release by HATCI this week, the partnership developed a wireless power transfer system with better than 85% grid-to-vehicle efficiency and able to transfer more than 10 kilowatts to the vehicle for fast charging.
‘Easier and More Convenient’
The system allows for “misalignment between the energy transmitter on the ground and the energy receiver on the vehicle, making it easier and more convenient for day-to-day usage,” states the release.
In phase two, HATCI says, the partners integrated a compact system optimized for the Soul EV and demonstrated full operation at a record 92% efficiency.
In addition to the unprecedented efficiency, CEO Afshin Partovi terms the Mojo Mobility “position freedom.” He told F&F that the system works even if the transmitter and car are seven tenths of a meter off-center, meaning a driver has a target circle of more than four feet on which to park.
Five Kia Soul EVs
“Innovative technologies such as this align well with one of our core goals, which is to create a vehicle experience that is intuitive and easy for the consumer.” HATCI president Sung Hwan Cho says in his company’s announcement.
“Real-world performance data will be gathered in the third and final phase of the project,” states the release, “using five Kia Soul EVs and corresponding energy transmission units.”
The final phase “will test the systems’ durability, interoperability, safety, and performance,” the partners say.
Mojo’s goal is a wireless fast-charge system that can deliver 20 kilowatts of power. The firm is also working on dynamic charging to allow electric vehicles to be charged at stop lights or even while in motion.
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Source: Kia Motors America with Fleets & Fuels follow-up