Audi revamps 2015 R18 e-tron quattro Le Mans diesel hybrid racer; 4MJ class
Green Car Congress
MARCH 23, 2015
The encapsulated WHP flywheel energy storage system that sits in the cockpit alongside the driver can store up to 700 kilojoules (KJ) of energy that it subsequently returns to the electrical machine—about 17% more than in 2014. The improved hybrid output, however, results in a restriction for the internal combustion engine.
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