Quote:
Originally Posted by rmay635703
Yes but... If we were to place a constant output motor that runs at a very high efficiency but throttles up/down slowly couldn't one use it to run a generator with a small bank of capacitors or batteries to make up the power differential during acceleration?
The batteries/capacitors would have to be sized just big enough to allow for the accelleration periods, then the motor would take over driving the car directly once the car was steady state, similar to a hybrid but with more reliance on the electrical system.
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Thank you!
I've been waiting for someone to suggest such an option. This at least could give us highway efficiency in all conditions, even in heavy traffic. The problem is weight, but the whole set up should weigh less than the good portion of battery stack a usual EV conversion seems to carry around. Half that for some grid capasity, and put in a 20 HP generator for the rest seems a viable solution for extending an EV range.
Another more complicated solution is trying to obtain higher efficiency from the set up, by getting some power back from from the exhaust and cooling heat. Here the six cycle engine could be an advantage. Imagine having a 30HP engine, that uses the same amount of fuel as a 20HP one.
(dreaming...)
I can see the major issue to be overcome in form of water condensation in oil and causing lubrication problems. Since it would be going straight into the sump in most car applications, isn't there a some sort of filter element in place, like a brass (is it brass?) water repellant screen before it goes into the pump? I know this is used in motorcycle fuel tanks, but this obviously is a different set of conditons.
I've also heard of full-seal piston rings, would they help solving it at all?
I know this is just a set of ramblings, but they seem logical to me.