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 05-22-2011, 11:42 PM   #4781 (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
The Hass 300 is 0.625v per 300 amps. So at 300 amps, the output would be 2.5v + 0.625v. I have no idea about the temperature sensor. hahaha. I forgot.

__________________
kits and boards
  Reply With Quote
The Following User Says Thank You to MPaulHolmes For This Useful Post:
Camaro (05-23-2011)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 05-23-2011, 12:00 AM   #4782 (permalink)
EcoModding Apprentice
 
Join Date: Nov 2010
Location: Annapolis
Posts: 159
Thanks: 0
Thanked 32 Times in 27 Posts
Quote:
Originally Posted by Camaro View Post
Then you've had better luck than me. I've been working with PIC's and other micro controllers for many years, and I've never accidentally locked a controller until I messed with the AVR. Those stupid fuse bits. Why call them fuses? They're configuration bits. I've also never been happy with Arduino. For someone getting started it's fine, but I like having lower level control to my bits.
Hardware for Arduino doesn't have any specific limit. It's just AVR processor boards with some standardization. You don't have to use the limiting programming environment, and you get to take advantage of all of the hardware pieces that fit together.

And having the environment there lets you easily get back to a running system if anything goes wrong.
  Reply With Quote
Old 05-23-2011, 10:17 AM   #4783 (permalink)
EcoModding Apprentice
 
apowers's Avatar
 
Join Date: Aug 2009
Location: Tn
Posts: 126
Thanks: 14
Thanked 19 Times in 16 Posts
Hi Paul, and everybody else.

I am thinking about adding a second contacter. I have the unified 16k firmware . The chip is an M 8. Will this operate the second contacter?

This is to make it easier for someone else to drive the vehicle. Could someone get in and turn the key on , and between the time the key is switched and the second contacter is switched place their foot on the accelerator and cause a problem ? Did that make any sense?

Thanks Alvin
  Reply With Quote
Old 05-23-2011, 11:24 AM   #4784 (permalink)
EcoModding Apprentice
 
Join Date: Nov 2010
Location: Annapolis
Posts: 159
Thanks: 0
Thanked 32 Times in 27 Posts
Quote:
Originally Posted by apowers View Post

I am thinking about adding a second contacter. I have the unified 16k firmware . The chip is an M 8. Will this operate the second contacter?

This is to make it easier for someone else to drive the vehicle. Could someone get in and turn the key on , and between the time the key is switched and the second contacter is switched place their foot on the accelerator and cause a problem ? Did that make any sense?
My reading of the Cougar source code has the HPL / High Pedal Lockout check being done independently of the PRECHARGE_WAIT / contactor timeout. Someone that doesn't understand the delay, or just counted wrong, could have the contactor close and the controller immediately start to ramp up power.

It could be argued that this might be a safety problem. It would be trivial
to change the behavior by reordering the checks and making clearing them a sequential condition.

if (fault_bits & HPL_FAULT) {
.... /* Clear fault if the throttle pedal is released. */
}
if (fault_bits & PRECHARGE_WAIT) {
.... /* Clear fault after the timeout. */
}

------------

if (fault_bits & PRECHARGE_WAIT) {
.... /* Clear fault after the timeout. */
} else if (fault_bits & HPL_FAULT) {
.... /* Clear fault if the throttle pedal is released. */
}
  Reply With Quote
The Following User Says Thank You to DJBecker For This Useful Post:
apowers (05-23-2011)
Old 05-23-2011, 11:36 AM   #4785 (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
Ya, I've fixed that since then. I need to repost the updated software.
__________________
kits and boards
  Reply With Quote
The Following User Says Thank You to MPaulHolmes For This Useful Post:
apowers (05-23-2011)
Old 05-23-2011, 12:55 PM   #4786 (permalink)
EcoModding Apprentice
 
apowers's Avatar
 
Join Date: Aug 2009
Location: Tn
Posts: 126
Thanks: 14
Thanked 19 Times in 16 Posts
How long ago was that updated? I just loaded that firmware about a month ago.

Alvin
  Reply With Quote
Old 05-23-2011, 03:42 PM   #4787 (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
Oh just in the last few weeks actually. Well, the code had been changed, but I just hadn't emailed the .hex file to myself, since it was in the black pit of despair (linux). Hey! Check out the fish my dad just caught on Friday! He made the news too.

See photos of the latest catches from Westport | KING5.com Seattle
__________________
kits and boards
  Reply With Quote
Old 05-23-2011, 04:26 PM   #4788 (permalink)
EcoModding Lurker
 
Join Date: May 2011
Location: Atlanta, GA/Fairhope, AL
Posts: 17

ChiefsBuggy - '66 VW Dune Buggy Type 1 w/ Boss Bug body Bondo?
Thanks: 0
Thanked 6 Times in 5 Posts
Hell of a Halibut!

Bet he's kicking himself for not buying a derby ticket. :-)
  Reply With Quote
Old 05-23-2011, 04:53 PM   #4789 (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
He brought it in with 30 pound test line too. They weren't fishing for Halibut, so they had wimpier line since they just wanted to get sea bass, and maybe a ling cod or green ling. They only had 2 gaff hooks too, so they almost couldn't get it in the boat.
__________________
kits and boards
  Reply With Quote
Old 05-23-2011, 06:29 PM   #4790 (permalink)
AC-DC enthusiast
 
mrbigh's Avatar
 
Join Date: Nov 2009
Location: Long Island, NY
Posts: 282

Dual-PWR PHEV - '04 Toyota Prius

Kopper - '79 Bradley Bradley GT-II
Thanks: 123
Thanked 54 Times in 37 Posts
Quote:
Originally Posted by MPaulHolmes View Post
Oh just in the last few weeks actually. Well, the code had been changed, but I just hadn't emailed the .hex file to myself, since it was in the black pit of despair (linux). Hey! Check out the fish my dad just caught on Friday! He made the news too.

See photos of the latest catches from Westport | KING5.com Seattle
Holly mackarel !!!! a 133 pounder. I had never see such a big fish of that type.

__________________
. .. .. . .......
Prius Absolutum Dominium . ..........KOPPER
PHEV conversion since Dec 2006.. . .... .Future EV
. . . . . . . .CALCars # 27. . . . . . . . . . ..on the works now !!
. . . . . . . . . . . . . . . . .. . ........
  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