Go Back   EcoModder Forum > EcoModding > Fossil Fuel Free > Open ReVolt: open source DC motor controller
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 11-19-2009, 04:08 PM   #2591 (permalink)
EcoModding Lurker
 
GrahamMc's Avatar
 
Join Date: Apr 2009
Location: Morton, IL
Posts: 38
Thanks: 1
Thanked 1 Time in 1 Post
Quote:
Originally Posted by MPaulHolmes View Post
Ya, but there were a few patent issues, since Hazen patented his controller. It is a really good idea though.
I don't think it is a violation of patent law if you are not selling the product. You can build your own 747 if you want, just dont try to sell it. Still a free country and all. Maybe you could design one and call it "Blazin' Hazen" as a tribute.

__________________
Information should be free. Let's work on that together.
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 11-19-2009, 04:30 PM   #2592 (permalink)
Master EcoModder
 
jackbauer's Avatar
 
Join Date: Sep 2009
Location: Ireland
Posts: 734
Thanks: 26
Thanked 304 Times in 171 Posts
First test drive today with the igbt controller at 24v. I'd like to thank everyone especially paul for all the help freely given. Without the work of everyone on this project i wouldn't have had so much fun today. Enjoy!

  Reply With Quote
Old 11-19-2009, 04:45 PM   #2593 (permalink)
PaulH
 
MPaulHolmes's Avatar
 
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
That is awesome!!!!! Nice enclosure too! An actual real life controller without the need for special machining equipment! Great Job! You know that one guy in Braveheart that said Ireland was his island? Ireland is your island!
__________________
kits and boards
  Reply With Quote
Old 11-19-2009, 05:12 PM   #2594 (permalink)
Master EcoModder
 
jackbauer's Avatar
 
Join Date: Sep 2009
Location: Ireland
Posts: 734
Thanks: 26
Thanked 304 Times in 171 Posts
Thanks Paul Its running with the 8mhz crystal , 8khz switching. Only a little noise at low current. I wouldn't have noticed if I wasn't looking. Heatsink stayed below 24c throughout the whole run and at 24v it would have to draw a lot of amps! I must have a look at getting the v1.1 firmware to run at 8mhz.
  Reply With Quote
Old 11-20-2009, 11:04 AM   #2595 (permalink)
Master EcoModder
 
jackbauer's Avatar
 
Join Date: Sep 2009
Location: Ireland
Posts: 734
Thanks: 26
Thanked 304 Times in 171 Posts
Did a few more runs today. Drove a total of 0.8 miles! Climbed the hill in third pulling 400 battery amps with 4 people in the car! Heatsink temp peaked at 28c. According to the pc program rtd explorer i consumed 7.8ah for the whole journey. Very impressed with the rtd program as i could actually see the motor amps graph climb as the hill got steeper. Despite running the controller at 8khz there is no noticeable noise. Only a tiny whine at low speed. Nothing like the curtis. I even managed an upshift from first to second. No problems.

All in a great test and proves its a viable vehicle. Next step 48v
  Reply With Quote
Old 11-20-2009, 12:51 PM   #2596 (permalink)
PaulH
 
MPaulHolmes's Avatar
 
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
That is freaking awesome! 400 battery amps??!! The motor amps were higher then. Are you using 2 IGBTs in parallel? What were their ratings again? I forgot!

P.S.: Oh no! 28 degC! hahahaha Talk about a safety margin!

-Paul
__________________
kits and boards
  Reply With Quote
Old 11-20-2009, 01:43 PM   #2597 (permalink)
Master EcoModder
 
jackbauer's Avatar
 
Join Date: Sep 2009
Location: Ireland
Posts: 734
Thanks: 26
Thanked 304 Times in 171 Posts
I'm using 2 igbts. One as the switch one as the freewheel with its gate - emitter tied together. they are rated at 1000amps 1200volts. That rating drops to 800amps at a tj of 125c. I drew about 300 ish amps for the climb and a peak at 400 amps at the very top where the hill is steepest. I'd guess if i had more voltage the current would have been less. I was amazed really. 4 people in the car and a boot full of tools! Nothing i tried would stop that motor! Slow it down yes but stop it no chance and that was with only 36v on the shunt field. It can take 80.
  Reply With Quote
Old 11-20-2009, 06:27 PM   #2598 (permalink)
EcoModding Lurker
 
Join Date: Mar 2009
Location: Florida
Posts: 37
Thanks: 0
Thanked 2 Times in 2 Posts
Jack,

What motor are you using?

Congrats on the sucess!!!!

Rick
  Reply With Quote
Old 11-20-2009, 06:39 PM   #2599 (permalink)
EcoModding Apprentice
 
Join Date: May 2009
Location: Australia
Posts: 109
Thanks: 0
Thanked 2 Times in 2 Posts
Great stuff Jack, you should have your own TV show it would be a lot more entertaining than Oprah!!

Had to laugh, you want a heater, it was 43 deg C here yesterday. I will send a can of it over for you.
  Reply With Quote
Old 11-21-2009, 02:25 AM   #2600 (permalink)
Master EcoModder
 
jackbauer's Avatar
 
Join Date: Sep 2009
Location: Ireland
Posts: 734
Thanks: 26
Thanked 304 Times in 171 Posts
I do have my own show its called 24! Motor is a 11.5" diameter 80v compound wound beast from a mitsubishi 4 ton forklift Torque city!

  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Paul and Sabrina's Cheap 3 Phase Inverter (AC Controller) with Field Oriented Control MPaulHolmes Fossil Fuel Free 3480 05-04-2022 05:43 PM
Paul & Sabrina's Cheap EV Conversion MPaulHolmes Fossil Fuel Free 542 11-12-2016 09:09 PM
Three Dirt Cheap DIY Electric Cars - Part 5 SVOboy EcoModder Blog Discussion 0 12-12-2008 04:10 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com