If there were a neat, light 2 speed converterless auto ( needing no seperate clutch )
I'm not sure how you'd operate it (I think they use electric valve/hydraulic servo normally) but have you thought about an overdrive unit?.
Working around parts which are far from suitable is to be avoided, in my experience.
NickJ wrote:It may not be "perfect" or "right" but it will be fun finding out!
Setting some sort of target, ie: clutchless-single-speed, at least gives something to measure against.
my original query was as to some sort of rule of thumb for motor power (meaning torque of course) to vehicle all up weight which will allow single speed transmission.
With motor torque rarely being quoted in specifications but knowing that total output in kw is in fact a function of torque and rpm it did not seem unreasonable to me to ask for a rough ratio of kw to kgs to permit the use of a nice simple single speed conversion
Jeremy wrote:Exactly my thoughts. I f we all just hang around waiting for the perfect vehicle and perfect motor/controller/battery to arrive at a reasonable cost then we'll never move anything forward.
I guess there are two basic groups of people on here, those who want to copy stuff that's been proven to work well, accepting that the resulting compromise may have a performance that is below that which could be obtained, and those that wish to find novel ways to use newer technologies to give increased range, speed etc.
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