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Comment: Re:Why does it need a 5 speed gearbox?? (Score 1) 158

by Viol8 (#49370729) Attached to: At the Track With Formula E, the First e-Racing Series

"google brushless motor efficiency, look at images if you don't fancy reading."

If you're going to try and be patronising it helps if you have a clue what your argument is and what the curves actually mean and how they relate to modern motor control systems using IGBTs.

"i said rarely. "

So what? Even it its only once it still needs a clutch unless you're suggesting they should push it from a standing start?

"once again, you don't need a clutch for an electric motor, whether it is mated to a gearbox or not"

Nice try. But don't try and flip the argument. You said F1 cars don't need a clutch so don't try and pretend you meant electric motors all along.

Comment: Re:Why does it need a 5 speed gearbox?? (Score 1) 158

by Viol8 (#49370373) Attached to: At the Track With Formula E, the First e-Racing Series

Oh FFS. Peak efficiency is for piston engines, not electric motors. Do you think theres a ratio swapping gearbox for every motor in a TGV?? Yet they still got one up to 320 mph.

"Considering f1 cars rarely stop, it's not a significant problem to forgo a clutch"

Umm, they stop for the pitstops and they have to move away at the start. Please suggest a way to do that without a clutch.

Comment: Re:Why does it need a 5 speed gearbox?? (Score 1, Informative) 158

by Viol8 (#49369971) Attached to: At the Track With Formula E, the First e-Racing Series

No idea why you got modded up for that comment. If you want to keep the motor rpm *up* then a gearbox is the last thing you want - just let the motor spin as fast as it can until back emf stops it or it flys apart. Gearboxes (on cars) are designed to keep the engine rpm *down*

Real Users find the one combination of bizarre input values that shuts down the system for days.

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