BMW 7-series ActiveHybrid: LA 2008
November 19, 2008 by admin
The new BMW 7-series ActiveHybrid was shown in the USA for the first time today at the LA Auto Show. The 7-series hybrid uses the same mild hybrid system developed alongside Mercedes.
A 20 kW electric motor/generator is sandwiched between the engine and transmission. The motor provides start-stop and regenerative braking capability. A lithium ion battery pack stores the energy and when it’s not needed for electric boost, it provides energy for vehicle electrical systems thus reducing the parasitic loads on the engine.
The mild hybrid will be used with the 4.4L twin-turbo V8 that BMW uses in the standard 7-series. This will reportedly give about a 20 percent increase in mpg. The 7-series hybrid should be on sale world-wide from the second half of 2009.
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