2021-10-29, 05:09 PM
(2021-10-27, 12:52 AM)seandepagnier Wrote: Anyway, I suggest you consider the friction of backdriving the motor. Unless you have a gearless solution (which is very unlikely as the electric motor would have to be huge) the added friction will be a real problem to overcome in manual steering. So I suggest you reconsider a way to engage/disengage the motor from the wheel.
Absolutely right. I just pulled a windshield wiper motor from a 2010 Ford 150 and friction is indeed quite high. I severely underestimated the effect of the gearbox. A permanently linked motor wouldn't be wise, thank you for pointing it out.
So what now? A dog&spline clutch seems appropriate, but it will have to be machined for the purpose. I wouldn't know where to find one ready made.
Or something else?
Also, an afterthought: the wiring on that wiper motor allows for different motor speeds. Is there anything to tap here? Faster speed in heavy weather but slower when its nice, in order to save energy?
"Overthinking, I try very hard not to do that."