KERS will enable the regeneration and storage of braking energy, which will then be available on tap as an extra source of power under acceleration to complement the output of a Formula One car’s V8 engine. Flexibility in the regulations will allow for either electric or mechanical solutions, with BMW Sauber opting for the former.
The 2009 BMW Sauber F1.09 will be equipped with a hybrid system consisting of a combination of electric motor and generator, the requisite power electronics and an energy storage module. In accordance with the regulations, this will store enough energy under braking to provide an additional 60 kW of output over around 6.5 seconds of acceleration.
BMW already use a brake energy regeneration system in a large number of their production cars. Although their Formula One KERS will not be dissimilar in principle, its efficiency and packaging - the complete system will weigh under 40 kg - should be in a different league.
“We are standing at the threshold between a conventional package of engine and independent transmission and an integrated drive system. The power density of the KERS components will far exceed that of today’s hybrid vehicles,” added Theissen.
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