Quote:
Originally Posted by redpoint5
Some fraction of x is always less than x, even if that fraction is very high. It would always be more efficient to avoid spending energy than attempting to recover it.
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When you run the numbers for Inertia Resistance you'll see some values which puts a face on 'strange.'
Also, Volvo has the option of specifying a ULRR tire which can compensate for what would otherwise be additional rolling resistance, just as GM did with it's patented tires for Impact/ EV1, and Ultralite.
Aerodynamics never changes.
And average cycle velocities are weighted towards 'City' driving, where R-R dominates, and can be erased with tires.
The NEDC cycles have to be respected. That's not negotiable.
The authors of the thesis were just trying to work within the NEDC constraints.
And when you see the actual BSFC-e of the Volvo, you'll realize how the SUV can just shrug off the extra mass during acceleration.
There are no 'braking' losses.
It's not 'strange' but it is significantly different compared to 'legacy' dynamics.