BMW’s hybrid cars confirmed for IAA Frankfurt

Posted at July 31st, 2009 under Uncategorized | No Comments »

The German auto maker BMW has officially confirmed the production 7-Series and X6 ActiveHybrids will be unveiled at the IAA Frankfurt Motor Show in September.

BMW 7-Series Hybrid Prototype

Image courtesy : worldcarfans

Details are limited about the hybrid cars. Both hybrids are expected to be powered by a small electric motor that develops 15 kW (20 hp) and 210 Nm (155 lb-ft) of torque. The motor will be coupled to the transmission housing, which will effectively replace drag inducing auxiliary components such as the alternator and starter.

Power is expected to come from a small lithium-ion battery. The battery will be recharged via a Brake Energy Regeneration system. This system will provide more than enough energy to run the various electrical systems when the 4.4-liter twin-turbo V8 engine is deactivated.

The company claims the 7-Series hybrid will achieve a 15% improvement in fuel economy, while the X6 hybrid will offer up to a 20% improvement.