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

MPaulHolmes · 03-21-2009, 10:02 PM

Much smoother!!!! ya!!!! Before you could hear a faint sound in the motor from noise because of sloppy A/D conversions. I slowed down the Analog to digital converter sampling rate, and I lowered the delay when the hardware shuts down the circuit. Now I can drive up the driveway at very low RPM.

I decided to floor it down the street!!! hahaha! The car accelerated VERY well, and then the current just held pinned at the current limit. You can hear a faint sound when the hardware current limiting kicks in! It's so fun!

I wish I could feel this at a higher voltage.

Video coming soon!!! ya!!! Controller #2 will be super easy to make! ya!!!!!!!!!

03-21-2009, 10:02 PM	#605 (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: 1,362 Thanked 1,202 Times in 765 Posts	Much smoother!!!! ya!!!! Before you could hear a faint sound in the motor from noise because of sloppy A/D conversions. I slowed down the Analog to digital converter sampling rate, and I lowered the delay when the hardware shuts down the circuit. Now I can drive up the driveway at very low RPM. I decided to floor it down the street!!! hahaha! The car accelerated VERY well, and then the current just held pinned at the current limit. You can hear a faint sound when the hardware current limiting kicks in! It's so fun! I wish I could feel this at a higher voltage. Video coming soon!!! ya!!! Controller #2 will be super easy to make! ya!!!!!!!!! __________________ kits and boards Last edited by MPaulHolmes; 03-21-2009 at 10:26 PM..