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 12-25-2009, 02:29 PM   #2801 (permalink)
EcoModding Apprentice
 
Join Date: Mar 2009
Location: Costa Rica
Posts: 137
Thanks: 24
Thanked 47 Times in 39 Posts
Haven't been able to log on here in quite a while. 2 nights ago, I sat and read this entire thread. I have to say, it is a funny read. Except for the Oprah Fan, it is VERY entertaining. Great job both writing and building, Paul. Thanks for the thread.

  Reply With Quote
The Following User Says Thank You to HaroldinCR For This Useful Post:
MPaulHolmes (12-27-2009)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 12-27-2009, 09:50 PM   #2802 (permalink)
EV test pilot
 
bennelson's Avatar
 
Join Date: Jan 2008
Location: Oconomowoc, WI, USA
Posts: 4,435

Electric Cycle - '81 Kawasaki KZ440
90 day: 334.6 mpg (US)

S10 - '95 Chevy S10
90 day: 30.48 mpg (US)

Electro-Metro - '96 Ben Nelson's "Electro-Metro"
90 day: 129.81 mpg (US)

The Wife's Car - Plug-in Prius - '04 Toyota Prius
90 day: 78.16 mpg (US)
Thanks: 17
Thanked 658 Times in 384 Posts
I FINALLY got to play around with programming the controller!

Adam (over the phone) walked me through connecting up the Cougar to a laptop with the RTD software and graph the data from the controller.

He also showed me how to change a couple of the settings.
It's dark and cold out now, but I plan on playing around with "tweaking" the settings on the controller now that I know how.

My only complaints about the controller at all have had to do with the "character" of the controller, which is controlled through the software. Since I can now mess with the software, I will simply brainwash the controller like a Stepford Wife until it behaves just the way I want it to!

Thanks for your help Adam!
__________________


300mpg.org Learn how to BUILD YOUR OWN ELECTRIC CAR CHEAP
My YouTube Videos
  Reply With Quote
Old 12-27-2009, 10:09 PM   #2803 (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 1,119 Times in 734 Posts
Quote:
Originally Posted by bennelson View Post
Since I can now mess with the software, I will simply brainwash the controller like a Stepford Wife until it behaves just the way I want it to!
Oh my... There's a spicy meatball! hahahaha!

I'm working on a syncronous rectification version of the controller right now. I've been making all the components in PCB Artist the last few days, since I can never find anything. It will also have CAN bus communications, so that it will be able to talk to a charger, and a BMS. Can can (haha) communicate really fast, like 1 Mb/s and has lots of error correction and all sorts of stuff. Once the layout is done and I've had like 50 gaggiiliioon people check it since I'm an idiot, then I'll send away for the pcb to be made by the dictatorship in the far east, then I'll hawk the boards, so people can make kits with them or something. hahaha.

I also am going to try to make a power section that's not etched at my dang house. CNC is great and all, but... a few days ago, I left to go eat some cereal while it was doing its thing, and I heard terrible honking noises. Ya, I forgot to tighten the drill bit before turning on the machine. Drill bits don't drill when they don't spin. They just bang into stuff.
__________________
kits and boards
  Reply With Quote
Old 12-28-2009, 04:29 AM   #2804 (permalink)
Master EcoModder
 
jackbauer's Avatar
 
Join Date: Sep 2009
Location: Ireland
Posts: 734
Thanks: 26
Thanked 296 Times in 168 Posts
I'm working on a very simple power stage using two of these babies:
IGBT Modul FUJI 2MBI450U4E-120 on eBay (end time 06-Jan-10 15:24:30 GMT)
Won't even need bus bars or a pcb for the caps. Anyone with a hand drill and a hacksaw can build it.
__________________
Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
www.evbmw.com
  Reply With Quote
Old 12-28-2009, 04:41 AM   #2805 (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 1,119 Times in 734 Posts
Oh heck ya Jack!!!!! But seriously, what are you doing up at 1:40am??!! Man, go to sleep. hehe. Jack, I think you are McGuyver.

My wife and son and brother in law went out to the store to get Lettuce... At 1:40am. It's true. So, I'm just here trying to finish this dang schematic, and then do my first layout in my whole life.
__________________
kits and boards
  Reply With Quote
Old 12-28-2009, 04:43 AM   #2806 (permalink)
Master EcoModder
 
jackbauer's Avatar
 
Join Date: Sep 2009
Location: Ireland
Posts: 734
Thanks: 26
Thanked 296 Times in 168 Posts
Nah thats Jack O'Neill and its actually 9:40am in Ireland
__________________
Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
www.evbmw.com
  Reply With Quote
Old 12-28-2009, 09:33 AM   #2807 (permalink)
Out of my mind, back in 5
 
Join Date: Nov 2009
Location: Malmoe, SWEDEN
Posts: 124
Thanks: 1
Thanked 5 Times in 5 Posts
Quote:
Originally Posted by jackbauer View Post
I'm working on a very simple power stage using two of these babies:
IGBT Modul FUJI 2MBI450U4E-120 on eBay (end time 06-Jan-10 15:24:30 GMT)
Won't even need bus bars or a pcb for the caps. Anyone with a hand drill and a hacksaw can build it.
Will that be compatible with synchronous rectification? (response and such of the IGBT's) I hate trying to dechiper stuff in german... Gives me a headache...

I like this as it's then possible to build a powerstage with different sized IGBT's and cap's for different power...
  Reply With Quote
Old 12-28-2009, 03:18 PM   #2808 (permalink)
Master EcoModder
 
jackbauer's Avatar
 
Join Date: Sep 2009
Location: Ireland
Posts: 734
Thanks: 26
Thanked 296 Times in 168 Posts
Yes they would work with sync rectification at 8khz. That guy on the German ebay is great i've bought quite a bit from him with no problems. I personally think igbts are more rugged than fets. Just my experience.

Hey paul am i right in thinking that the lems output 625mv over the full scale so say a 50amp lem would output 625mv at 50 amps but could actually read 150 amps at 1.875v?
__________________
Now, Cole, when you shift the gear and that little needle on the ammeter goes into the red and reads 2000 Amps, that's bad.
www.evbmw.com
  Reply With Quote
Old 12-28-2009, 05:45 PM   #2809 (permalink)
EcoModding Lurker
 
Join Date: Mar 2009
Location: Florida
Posts: 37
Thanks: 0
Thanked 2 Times in 2 Posts
Jack,

Your close. The Lems work off a zero current position of 2.5 volts. Therefore, the 50 amp Lem would read 2.5+.625 volts at 50 amps discharge or it would read 2.5-.625 at 50 amps discharge. They do produce a linear output all the way to their max current allowable so 150 amps discharge would be 4.375 volts. You do need to check them at their zero current voltage. They are usually off by a few mv.

Rick
  Reply With Quote
Old 12-29-2009, 12:33 AM   #2810 (permalink)
EcoModding Lurker
 
Join Date: Sep 2009
Location: EDMONTON
Posts: 23
Thanks: 1
Thanked 2 Times in 2 Posts
an attractive LCD

here is quite the little lcd package

BlueScreen

cannot say what it would take to use it with CAN bus. I ran across it while looking into I2C devices.

  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 3477 05-24-2021 03:28 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 - 2021, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com