Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Paul & Sabrina's cheap DIY 144v motor controller

MPaulHolmes · 07-17-2014, 10:12 AM

Be gentle with your driving at the moment. I had the temperature protection disabled by mistake. I'm almost done making several changes. It should be ready in a few minutes.

My wife just got done doing our state online taxes, so NOW it should be ready in a few minutes!

BTW, if there is a single hardware overcurrent event, the controller will shut down, and you will have to cycle power. It would be preferable to clear the fault after some amount of time, but just for now during debugging I thought it would be best to shut it all down if that happens. You don't want to keep clearing hardware overcurrent faults if they happen in rapid succession. That blew up one guy's controller a couple years ago.

One thing I'm very curious about: Will the driving smoothness be affected by the spread spectrum switching? The period keeps changing, which may complicate the PI loop convergence. But it might be OK. One test is worth a 1000 theories, as they say. haha

07-17-2014, 10:12 AM	#6697 (permalink)
MPaulHolmes PaulH Join Date: Feb 2008 Location: Maricopa, AZ (sort of. Actually outside of town) Posts: 3,832 Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000 Thanks: 1,368 Thanked 1,202 Times in 765 Posts	Be gentle with your driving at the moment. I had the temperature protection disabled by mistake. I'm almost done making several changes. It should be ready in a few minutes. My wife just got done doing our state online taxes, so NOW it should be ready in a few minutes! BTW, if there is a single hardware overcurrent event, the controller will shut down, and you will have to cycle power. It would be preferable to clear the fault after some amount of time, but just for now during debugging I thought it would be best to shut it all down if that happens. You don't want to keep clearing hardware overcurrent faults if they happen in rapid succession. That blew up one guy's controller a couple years ago. One thing I'm very curious about: Will the driving smoothness be affected by the spread spectrum switching? The period keeps changing, which may complicate the PI loop convergence. But it might be OK. One test is worth a 1000 theories, as they say. haha __________________ kits and boards Last edited by MPaulHolmes; 07-17-2014 at 12:05 PM..