CNCAddict wrote:Yeah, this is all coming together pretty nicely. The motor I'm building will be "capable" of very high peak power levels somewhere north of 15Kw if it is geared correctly and run at high voltages. The problem is that the current controllers will not limit power when temps get out of hand. This is something I really worry about if Joe the plumber buys one of these. Riding hard in the mountains pulling 9Kw continuous would heat things up a lot...and ruin the motor. We need some sort of circuit to measure controller/motor temps and start beeping like mad and limit the throttle when temps get out of hand. This should be an easy project for anyone with a bit of programming skills
I'd be more worried if Sarah Palin buys one (Sorry I couldn't resist).
The Eagle Tree Logger has provisions for adding temperature sensors. I don't know if it has any provision for outputting a signal that can be used to limit the throttle.
I don't need the very high power. What I want is something that is bullet proof and efficient in the range of about 2kW to 3kW sustained (hill climbing). I also don't want to run at over 36v or 48v. I want a system that is safe and reliable in the rain. That means I am going to do everything I reasonably can to make all of the electronics waterproof. But in case there is a problem I don't want to be riding an 85v system with a short circuit.
This raises a question. Will your motor or one of your motors (if you have multiple 60 series models) operate efficiently at 36v or 48v?
And a suggestion. I would do everything that you conveniently can do to encourage purchasers and make it easy for purchasers to assemble and install a system that is safe in the rain.
I also have a question for Matt. What is the approximate range of reductions that will be available with your two stage drive unit?