Tommy Cookers wrote: ↑
Sat Jul 07, 2018 9:44 am
the most efficient gears are likely to be noisy - and quiet gears are unlikely to be the most efficient
neither will the electric 'motors' and their drive electronics be quiet
The sound from straight cut gears arise from features that could potentially be engineered away. Imperfections, lubrication and tolerances; at a guess. Why would optimizing those things reduce efficiency. The sound waves have to come from somewhere.
Big Tea wrote: ↑
Sat Jul 07, 2018 10:08 am
Would they benefit from some sort of narrow range CVT?
I know the torque of the motor is constant, but would varying the gearing slightly help with corner exit?
Efficiency and weight vs. gear ratio compromises. Top speed at pikes peak relatively low, and only one acceleration from very low speed. The weight of adding more gears, clutches, associated mechanisms, or CVTs. Hard to make a CVT as efficient as spur gears.