Quote:
Originally Posted by knighty
hi gwyllion, thanks for confirming the motor-generator weight, mine was an approximation at 20Kg, but 45Kg is obviously a very heavy piece of kit!........I'm pretty sure the F1 KERS systems are in the region of 20-30Kg, it was a rough comparison in all honesty.......... but the point still stands, the williams flywheel system is one heavy mo-fo........it will be interesting to see how they all compare, for sure I cant see pug and Toyotas systems being anywhere near as heavy
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http://scarbsf1.wordpress.com/2012/0...rs-development contains some details about the Mercedes KERS. The comment from a Zytek employee who worked on the project in 2009, is also interesting:
http://scarbsf1.wordpress.com/2012/0.../#comment-4712
In 2009 the whole Mercedes solution (battery, motor and electronics) weighed 27 kg and in 2011 24 kg. In 2009 the batteries had to be replaced every 2 races (2400 km), but in 2011 the life time of the batteries was extended to 10000 km. The efficiency of solution (energy released vs energy harvested/stored) is 80%.