Quote:
Originally Posted by freebeard
On one level, that was my point. One reason would be to retain the clutch. Why would anyone do that? 
In that case, remove the ring gear's weight and embed the magnet in the flywheel proper.
Astro -- good point about the square-cut gears. There are aftermarket hi-torque starters for engines with super-high compression, but there goes reusing the existing parts.
Most of this goes right over my head, I'll go back to lurking now. |
Lurking around EV forums i get the impression there is a real mix of clutch and clutchless builds.
There is a long list of pros and cons for each.
If it were just about efficiency then clutchless, gearboxless would be the way to go.
But then you have to add in the builders abilities, skills, knowledge, access to tools etc, etc.
If i was using a DC motor then i would retain the clutch just for safety in case of a controller fail on situation.
For my AC motor conversion i have still retained the clutch, mainly because i will not be the only driver and so i am trying to keep the set up drivable by any driver with little to no instructions required. It is also my first conversion and i have this feeling that the less i change the less there is to muck up.
My father in-law is a machinist so if we decide at a later date to swap out the clutch and flywheel for a direct coupler then this should be possible.
If we went for a direct coupler initially and then later changed our minds then we would probably have to re-do the motor to gearbox spacing.
Also i know the slow gear changes would irk me. Even though gear changes should be much rarer in the EV than the ICE powered version.
I did a search and found an old thread
clutch-vs-clutchless. but it was a very short thread mainly about getting the controller to match the motor speed to the gear for easier gear changes. Maybe the thread should be resurrected?