Alternator Control. Dead nailed. MS3 / MS3-Pro / MSPNP-Pro - Page 5 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


ECUs and Tuning Discuss Engine Management, Tuning, & Programming

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 07-02-2014, 12:50 PM   #81
Senior Member
iTrader: (1)
 
Join Date: Apr 2011
Location: Columbia, SC
Posts: 1,342
Total Cats: 78
Default

Quote:
Originally Posted by DNMakinson View Post
Did you ever get this working, or did you go to the hardware module?
I installed the board I had purchased from Frank. No regrets.
Schuyler is offline   Reply With Quote
Old 07-02-2014, 12:57 PM   #82
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,892
Total Cats: 1,792
Default

I spoke to the developer, no reason it shouldn't be working, and it seems we have more than a few running it succesfully.

Should just need a generic pwm out, 5v pull-up to the alt field out.
Braineack is offline   Reply With Quote
Old 07-02-2014, 12:59 PM   #83
Senior Member
iTrader: (1)
 
Join Date: Apr 2011
Location: Columbia, SC
Posts: 1,342
Total Cats: 78
Default

Quote:
Originally Posted by Braineack View Post
I spoke to the developer, no reason it shouldn't be working, and it seems we have more than a few running it succesfully.

Should just need a generic pwm out, 5v pull-up to the alt field out.
My 1k resistor was probably just too much for the pull-up, and should have been like 460ohms. Just by the time I had to desolder the resistor from the proto area and all, I just installed Frank's board since it was already apart.
Schuyler is offline   Reply With Quote
Old 07-02-2014, 01:07 PM   #84
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,892
Total Cats: 1,792
Default

dunno. i dont think that's really the issue.
Braineack is offline   Reply With Quote
Old 07-11-2014, 12:34 PM   #85
Supporting Vendor
 
Matt Cramer's Avatar
 
Join Date: Sep 2006
Posts: 2,266
Total Cats: 51
Default

Quote:
Originally Posted by Reverant View Post
Woah there with the hatin'. What's next? Asking for the source code for the current stable version?
Released this morning.

Megasquirt MSEXTRA / MS3EFI • MS3 1.3.2 source code released (View topic)
Matt Cramer is offline   Reply With Quote
Old 07-11-2014, 01:10 PM   #86
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,892
Total Cats: 1,792
Default

rev just got a bone.
Braineack is offline   Reply With Quote
Old 07-11-2014, 06:08 PM   #87
Supporting Vendor
iTrader: (10)
 
Reverant's Avatar
 
Join Date: Jun 2006
Location: Athens, Greece
Posts: 5,441
Total Cats: 198
Default

Yay!
Reverant is offline   Reply With Quote
Old 07-19-2014, 01:45 AM   #88
Elite Member
 
Chiburbian's Avatar
 
Join Date: Feb 2008
Location: Gilberts, IL
Posts: 2,158
Total Cats: 131
Default

I attempted this yesterday. I haven't put it together because I ran out of time.

Does this look correct? It is from the 5v pad on the underside of the expander board through a 1k ohm 1/4 watt resistor to pin #27 (VVT).
Chiburbian is offline   Reply With Quote
Old 07-25-2014, 12:21 AM   #89
Elite Member
 
Chiburbian's Avatar
 
Join Date: Feb 2008
Location: Gilberts, IL
Posts: 2,158
Total Cats: 131
Default

Well, I squashed a few other bugs unrelated to the alternator control and got my car running again tonight.

Unfortunately though my battery voltage isn't increasing. I installed a brand new AGM battery since I fear that my old one was toast and partially contributing to my problems and that battery was installed at 11.2v indicated from the wire that normally provides 12v to the MAF.

After several minutes the voltage increased to 11.4 volts but it never went up from there. It never dropped below 11.4 volts after probably 20 minutes of running so the battery IS being charged to some degree or else I imagine it would have died long before that and certainly the voltage wouldn't have gone UP.

For the record, it is an 01. The position 3M (labeled as Generator Field Control) was wired to the VVT out with a 5v pull up.



What should be my next step in troubleshooting?
Attached Thumbnails
Alternator Control.  Dead nailed.  MS3 / MS3-Pro / MSPNP-Pro-plugpositions.jpg  

Last edited by Chiburbian; 07-25-2014 at 12:34 AM.
Chiburbian is offline   Reply With Quote
Old 07-25-2014, 09:04 AM   #90
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,892
Total Cats: 1,792
Default

what makes you think PK3 is VCC?

VCC is H5. (it's actually labeled as such)




As far as I'm aware PK3 goes no where, so you're not adding a 5v pull up.

Move your wire to the correct place: H5
Attached Thumbnails
Alternator Control.  Dead nailed.  MS3 / MS3-Pro / MSPNP-Pro-ms3x-jps.png  
Braineack is offline   Reply With Quote
Old 07-25-2014, 09:51 AM   #91
Elite Member
 
Chiburbian's Avatar
 
Join Date: Feb 2008
Location: Gilberts, IL
Posts: 2,158
Total Cats: 131
Default

LOL. I swear I double and triple checked that and still screwed it up.

Thanks Brain.
Chiburbian is offline   Reply With Quote
Old 07-25-2014, 05:27 PM   #92
Elite Member
 
Chiburbian's Avatar
 
Join Date: Feb 2008
Location: Gilberts, IL
Posts: 2,158
Total Cats: 131
Default

Fixed and alternator control is working... Kinda.

While cruising I am at 13.9v for some reason. And a/c does bork my voltage at least initially but that could be because it drops rpm so fast. I will do more research this week end.
Chiburbian is offline   Reply With Quote
Old 08-06-2014, 10:42 AM   #93
Boosting since 1984
iTrader: (1)
 
stefanst's Avatar
 
Join Date: Sep 2011
Location: Levittown
Posts: 1,198
Total Cats: 68
Default

I've been running the new code for a few weeks now and it works flawlessly for me so far. It's a bit weird at night, when you floor it and the lights dim a little, but that is a sacrifice I'm willing to make for some additional hp.

Thanks to the developers!
stefanst is offline   Reply With Quote
Old 08-06-2014, 11:54 AM   #94
Ben
Supporting Vendor
Thread Starter
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

Quote:
Originally Posted by stefanst View Post
I've been running the new code for a few weeks now and it works flawlessly for me so far. It's a bit weird at night, when you floor it and the lights dim a little, but that is a sacrifice I'm willing to make for some additional hp.

Thanks to the developers!
The alternator cut off vs TPS can be disabled by setting the cut off point at 101% throttle position. It was a feature requested by some autocrossers where a couple of thou's might mean a lot.
Ben is offline   Reply With Quote
Old 08-06-2014, 12:25 PM   #95
Boosting since 1984
iTrader: (1)
 
stefanst's Avatar
 
Join Date: Sep 2011
Location: Levittown
Posts: 1,198
Total Cats: 68
Default

Quote:
Originally Posted by Ben View Post
The alternator cut off vs TPS can be disabled by setting the cut off point at 101% throttle position. It was a feature requested by some autocrossers where a couple of thou's might mean a lot.
Please don't get me wrong- it's quite a welcome feature. Every little bit counts! But it scares me a little every time it happens
stefanst is offline   Reply With Quote
Old 08-23-2014, 05:36 PM   #96
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,892
Total Cats: 1,792
Default

Trying to get this running as we speak. I have it on the Stim, no change to the actual system voltage has any reaction to the alt control duty/freq.

BUT voltage on the output drops from ~7v to 0v at 15.1v--so looks like it's working. But the tune shows my target voltage is 14.0 at this instance.
Braineack is offline   Reply With Quote
Old 01-05-2015, 05:50 PM   #97
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,892
Total Cats: 1,792
Default

Any reason for the voltage spike?
Attached Files
File Type: msl 2015-01-04_20.59.09.msl (226.1 KB, 71 views)
File Type: msq CurrentTune (2).msq (224.3 KB, 66 views)
Braineack is offline   Reply With Quote
Old 01-05-2015, 06:29 PM   #98
Ben
Supporting Vendor
Thread Starter
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

Not that I see. I asked Ken & James to have a look.

Have you tried using a different PWM output?
Ben is offline   Reply With Quote
Old 01-05-2015, 08:50 PM   #99
Boosting since 1984
iTrader: (1)
 
stefanst's Avatar
 
Join Date: Sep 2011
Location: Levittown
Posts: 1,198
Total Cats: 68
Default

Quote:
Originally Posted by Braineack View Post
Any reason for the voltage spike?
It happened right after you lost sync as well. If it wasn't your unit, I would guess a bad ground: it would explained lost sync and a ground floating up means actual voltage put out to the alt control would be greater than needed.
stefanst is offline   Reply With Quote
Old 01-05-2015, 09:27 PM   #100
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,892
Total Cats: 1,792
Default

oh i didn't notice the loss sync. thanks, that helps figure it out.

i build the unit, I'm not running it personally.
Braineack is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Buzzing from driver side of engine bay? (MS3 install) nick470 MEGAsquirt 7 06-16-2017 02:53 PM
My solution for Oiltemp and Oilpressure input into Megasuirt (MS3) Zaphod MEGAsquirt 41 01-24-2016 01:25 PM
WTB MP62 (Hotside) (NB2) Rick02R WTB 3 01-03-2016 08:18 PM
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 10:39 AM
Another Alternator thread ihiryu General Miata Chat 9 09-28-2015 11:22 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 09:15 AM.