In article ,
NY wrote:
It sounds a good idea: design an engine that is as efficient as possible
at one speed, and then develop transmission that tries to maintain this
engine speed for a wide range of road speeds.

But it's not just engine speed but the load on it. At the end of the day
you need enough 'power' from the combination of IC and electric unit to
maintain its maximum cruising speed. With likely quite a bit in reserve to
climb hills without slowing down considerably.

It's why hybrids tend to give good MPG figures when driven gently. But
often worse than a conventional vehicle when driven fast.

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*IF A PARSLEY FARMER IS SUED, CAN THEY GARNISH HIS WAGES?

Dave Plowman London SW
To e-mail, change noise into sound.