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Originally Posted by kenny
I don't think anyone has mentioned this, if so I'm sorry.
If it takes more energy to get a heavier tire up to speed that means it has more kinetic energy at that speed.
Hence wouldn't it give back more energy to the IMA battery when slowing down?
I'm not saying it is a wash since no mechanism is 100% efficient, but I think should be considered.
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Yes, you don't lose as much energy when you use the kinetic energy to recharge your batteries. It's the same as with the total weight of the car. A heavier car could regenerate more energy when decelerating. Nontheless, the way to improve FE is to reduce the weight of the vehicle, not increase it.
Hybrid != perpetuum mobile.
