7/10/2014

BMW, Mercedes-Benz to Develop Wireless EV Charging

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Rivals BMW AG and Daimler AG are collaborating to develop a common system to recharge their electric and plug-in hybrid vehicles wirelessly.

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Rivals BMW AG and Daimler AG are collaborating to develop a common system to recharge their electric and plug-in hybrid vehicles wirelessly.

The inductive system transmits energy between a pad that can be placed on a garage floor or parking space and a secondary coil built into the vehicle's undertray. The system works indoors or outdoors in virtually all weather conditions.

BMW Says the wireless 3.6-kW system can recharge a plug-in car's battery in about three hours. The company adds that a 7-kW system may be developed for all-electric cars so their larger batteries can be fully charged overnight.

Daimler will test the technology with its S 500 plug-in hybrid luxury sedan, which will go on sale in September. BMW aims to use the charging technology with its "I" series electric cars and future plug-in hybrid models.