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Originally Posted by aerohead
Please read the thesis. There's no point discussing it until you have. This place where I use the computer is closing. I'll be back Thursday.
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This is physics. Not magic. I don't second guess physics. Nothing in the thesis proves that a heavier BEV is more efficient overall.
In fact it states in figure 4.1 that the small BEV uses the least amount of energy per distance.
It also states on page 26 that
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The small BEV’s efficiency is noticeably lower in the city cycle than the medium sized but responds predictable in the other two cycles in line with the larger cars. This rather strange behaviour is connected to the regenerative braking which is dependent on available wheel power and mass. Larger mass results in both a higher accelerating kinetic energy and thus carries more energy which is available during braking.
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This is exactly what I am getting at. The small BEV uses less energy overall. But it seems less efficient in urban driving due to a smaller mass that results in a lower accelerating kinetic energy.