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Thursday, April 14th, 2016

Wireless charging system for electric vehicles

Author:    
Source:     the engineer
Publication Date:     4th April 2016 12:19 pm
Link: Wireless charging system for electric vehicles
Stephan:   Tesla sold $10 billions worth of electric cars that no one would actually see for probably two years in 36 hours, hundreds of thousands; more than all the electric cars sold by Detroit in the last five years. In addition to the technological innovation aspect of this story I think it should also be seen a  as a sign that the electric powered vehicle trend has left the station, is gathering speed and a range of related markets servicing that reality is now going to spring up and prosper as well. I think one of the first, will be the entire delivery system.  Here is a very interesting data point in that trend.
Credit: ORNL

Credit: ORNL

According to the scientists, the system has achieved 90 per cent efficiency and functions at three times the rate of the plug-in systems commonly used for electric vehicles today. For the demonstration, the single-converter system was integrated into an electric Toyota RAV4 equipped with an additional 10-kilowatt hour battery. Energy was transferred from a transmitting plate in the ground to a receiving plate in the vehicle’s front end. This was in turn transferred to the battery via a controller.

“We have made tremendous progress from the lab proof-of-concept experiments a few years ago,” said Madhu Chinthavali, ORNL Power Electronics Team lead.

“We have set a path forward that started with solid engineering, design, scale-up and integration into several Toyota vehicles. We now have a technology that is moving closer to being ready for the market.”

The next steps of the project will aim for the target of 50-kilowatt wireless charging, which would match the power levels of commercially available plug-in quick chargers. Wireless charging on a par with conventional plug-in charging could […]

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