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Wireless power transfer takes centre stage in Berlin

CWIEME Berlin seminar to reveal how the latest wireless power transfer technology could drive the automotive industry towards a greener and more convenient future.

Submitted on 05/27/14, 01:08 PM

Imagine a world where you could charge your electric car while waiting for the traffic lights to change – or even as you drive down a special ‘charging’ lane. It’s not too distant a future, according to Dr. Faical Turki, head of R&D at Paul Vahle GmbH and a speaker at this year’s CWIEME Berlin exhibition.
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The key lies in wireless or inductive power transfer, which Dr. Turki will be discussing on the second day of the show’s CWIEME Central seminar programme.

“The simplest way to transfer energy wirelessly is to generate a magnetic field between two coils – a primary coil in the power source such as a garage charging point and a secondary one on an electric car. When the two coils move into range, the process begins automatically,” says Dr. Turki.

Without a charging cable, there is no danger of electrocution and motorists would never have to worry about forgetting to charge their electric car again. Wireless charging could also facilitate more frequent charging – power points could be installed on or under the surface of roads throughout an urban area – decreasing the size of the battery required and the weight of the car.

Breaking boundaries

Wireless charging is already widely used for small consumer products such as electric toothbrushes and mobile phones, while both static and dynamic power transfer have achieved some success in the industrial sector for the transit of goods and people. The Transrapid railway now operating in Shanghai is a case in point. However, this is the first time that the technology has been applied to private vehicles.
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