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 07-13-2014, 09:49 AM   #6671 (permalink)
EV Connoisseur
 
Join Date: Aug 2010
Location: Amsterdam
Posts: 309
Thanks: 70
Thanked 109 Times in 90 Posts
So there is no problem?

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 07-13-2014, 10:00 AM   #6672 (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: 1,362
Thanked 1,202 Times in 765 Posts
There is a hardware overcurrent protection circuit for each separate IGBT. I'm not doing anything with the other 2 current feedbacks at the moment inside the micro.
__________________
kits and boards
  Reply With Quote
Old 07-13-2014, 10:19 AM   #6673 (permalink)
EV Connoisseur
 
Join Date: Aug 2010
Location: Amsterdam
Posts: 309
Thanks: 70
Thanked 109 Times in 90 Posts
Okay.. I think the best thing to do is leave the setting at 100A and drive it around.. and monitor it closely.. with separate devices
  Reply With Quote
The Following User Says Thank You to flores For This Useful Post:
MPaulHolmes (07-13-2014)
Old 07-14-2014, 01:08 AM   #6674 (permalink)
PLUGnGO
 
jedsmd's Avatar
 
Join Date: Sep 2012
Location: Olympia Wa
Posts: 137
Thanks: 75
Thanked 82 Times in 54 Posts
At last the home move is winding down and I can work on my new controller.

Today I got it into the truck and fully connected up


A lot of orange cable going this way and that

Right now the controller is setting above a fan that feeds air through a gap under the controller. I don't know if that will be enough cooling for my around town driving style. I will monitor the plate temperature and add a heatsink if required.


Low voltage end with cover open, note the relay added to the contactor circuit to isolate the 24volt controller from the 12 volt contactor coil.


So when I fire it up absolutely nothing happens

Paul is possible I can get some software?
  Reply With Quote
The Following User Says Thank You to jedsmd For This Useful Post:
MPaulHolmes (07-14-2014)
Old 07-14-2014, 02:18 AM   #6675 (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: 1,362
Thanked 1,202 Times in 765 Posts
Minor details. I guess it would be good to program it first. I'll send you a hex file tomorrow morning. I probably just had some debug mode code on it at the moment.
__________________
kits and boards
  Reply With Quote
The Following User Says Thank You to MPaulHolmes For This Useful Post:
jedsmd (07-14-2014)
Old 07-14-2014, 01:38 PM   #6676 (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: 1,362
Thanked 1,202 Times in 765 Posts
Oh crap. I forgot that your throttle is inverted. I almost sent you the wrong code. PHEW. I'll try to find some time today to make the modification so it goes 5k = zero throttle and 0k = max throttle. There will be a little dead zone, so as to guarantee that the throttle contactor closes well BEFORE the throttle is considered nonzero. You definitely don't want the throttle to be nonzero, and the poor pwm ramping up to 100% in the vain attempt to see a nonzero current feedback (no current can flow when the contactor is closed).
__________________
kits and boards

Last edited by MPaulHolmes; 07-14-2014 at 01:51 PM..
  Reply With Quote
The Following User Says Thank You to MPaulHolmes For This Useful Post:
jedsmd (07-14-2014)
Old 07-14-2014, 02:26 PM   #6677 (permalink)
EV Connoisseur
 
Join Date: Aug 2010
Location: Amsterdam
Posts: 309
Thanks: 70
Thanked 109 Times in 90 Posts
Wouldn't it be a good idea to make that configurable?
  Reply With Quote
The Following User Says Thank You to flores For This Useful Post:
MPaulHolmes (07-14-2014)
Old 07-14-2014, 02:30 PM   #6678 (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: 1,362
Thanked 1,202 Times in 765 Posts
Well, now that you mention it, yes! That would be good. I had been half-heartedly trying to keep things as similar as possible to the other serial structure, but I've had to depart from it somewhat. So I may as well add that!
__________________
kits and boards
  Reply With Quote
The Following User Says Thank You to MPaulHolmes For This Useful Post:
flores (07-14-2014)
Old 07-14-2014, 10:08 PM   #6679 (permalink)
EcoModding Lurker
 
Join Date: Jul 2014
Location: Ottawa, Canada
Posts: 2
Thanks: 15
Thanked 1 Time in 1 Post
Irony

Quote:
Originally Posted by xtian999 View Post
Yes, it is like a pc fan, only much bigger. About 6" across and 2" thick. I will splice in a plug for it and see what happens. If it causes the controller to fry, then we will know that it was a big fan of irony.
Reading through the whole thread. This one killed me!

You guys are funny guys.
  Reply With Quote
The Following User Says Thank You to Sunny2 For This Useful Post:
MPaulHolmes (07-14-2014)
Old 07-15-2014, 07:19 AM   #6680 (permalink)
EV Connoisseur
 
Join Date: Aug 2010
Location: Amsterdam
Posts: 309
Thanks: 70
Thanked 109 Times in 90 Posts
btw.. I ordered this RS232 Shield - floris.cc so I can start building that web interface netduino thing.

  Reply With Quote
The Following User Says Thank You to flores For This Useful Post:
MPaulHolmes (07-15-2014)
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 3431 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