05-24-2011, 02:13 PM
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#4791 (permalink)
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EcoModding Lurker
Join Date: Jun 2010
Location: Texas
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Controller Assembly progress
So this weekend I started the assembly process.
I drilled out all the holes necessary - tinsel fun time, my wife loved it.
I then attached the M bus bar to the power board. Now I decided to be adventurous. The instructions mention using silver epoxy.
I decided to go with what I had in the garage which was a bunch of solder, a propane torch and some spring loaded clamps.
I wet the copper with the solder (heating the copper from the underside to melt the solder using the copper bar itself-not the torch)
I then used the 230 watt heat gun to wet the power board areas for the solder.
Smooth everything off- then line the copper bar on the holes with all the solder facing each other. Used the spirng clamps.
Went over the entire length of the bar with the propane torch.
Let it cool and the whole thing seems solid.
What do you guys think? I don't believe anything burned or caught fire (the board didn't smoke i wanted to be careful)
As far as all the bus bars, as i mentioned in an earlier post I would like to face them all the same way... i believe I saw someones controller like that...is there stuff i should be aware of (i'm pretty sure i'm missing something)
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05-24-2011, 02:46 PM
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#4792 (permalink)
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Master EcoModder
Join Date: Nov 2008
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JackBauer - what size are your copper bus bars?
I started soldering my control board finally! Now I just need time to FINISH soldering it...
Paul, what revision are we calling this board? 3? Square root of 5?
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05-24-2011, 02:49 PM
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#4793 (permalink)
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PaulH
Join Date: Feb 2008
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You can call this board whatever you want. Just don't call it late for dinner.
Yo, Voltmatic Automation, Awesome!!! I don't think there's any downside to soldering those buggers right to the power board, if you are able to do it. And I don't think there's a problem with having the bars all out the same direction either. At least in practice it seems to work just fine.
Last edited by MPaulHolmes; 05-24-2011 at 02:57 PM..
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05-24-2011, 04:22 PM
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#4794 (permalink)
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Master EcoModder
Join Date: Sep 2009
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The bus bar is 20mm x 10mm.
__________________
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
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The Following User Says Thank You to jackbauer For This Useful Post:
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05-25-2011, 01:28 PM
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#4795 (permalink)
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Master EcoModder
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Quote:
Originally Posted by jackbauer
The bus bar is 20mm x 10mm.
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Crazy 'Mericans....*grumble* *math noises*
0.394" x 0.787" bars. Call it 3/8" x 3/4", I guess. That was the size we were hunting anyway.
Thanks, JackBauer. |
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05-25-2011, 03:09 PM
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#4796 (permalink)
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AC-DC enthusiast
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Quote:
Originally Posted by Nevyn
Crazy 'Mericans....*grumble* *math noises*
0.394" x 0.787" bars. Call it 3/8" x 3/4", I guess. That was the size we were hunting anyway.
Thanks, JackBauer.
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Yea, 3/4 x 3/8 is what I use too
good for about 450Amp at DC level if my math is not wrong.
__________________
. .. .. . .... ...
Prius Absolutum Dominium . ..........KOPPER
PHEV conversion since Dec 2006.. . .... .Future EV
. . . . . . . .CALCars # 27. . . . . . . . . . ..on the works now !!
. . . . . . . . . . . . . . . . .. . ........
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05-25-2011, 03:46 PM
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#4797 (permalink)
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Master EcoModder
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okokokok (Leo Getz) , who's trying to upstage me with the igbts and caps ?? 
__________________
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
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05-25-2011, 06:24 PM
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#4798 (permalink)
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AC-DC enthusiast
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Quote:
Originally Posted by jackbauer
okokokok (Leo Getz) , who's trying to upstage me with the igbts and caps ?? |
It's got to be meee!!!!
__________________
. .. .. . .......
Prius Absolutum Dominium . ..........KOPPER
PHEV conversion since Dec 2006.. . .... .Future EV
. . . . . . . .CALCars # 27. . . . . . . . . . ..on the works now !!
. . . . . . . . . . . . . . . . .. . ........
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05-27-2011, 03:54 AM
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#4799 (permalink)
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EcoModding Lurker
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Tazzy - '02 Toyota Tazz Sport 90 day: 43 mpg (US)
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Very nice looking, MrBigh.
Are we going to have a little photo competition for the best looking controller?
Dawid
Last edited by DawidvC; 05-27-2011 at 03:56 AM..
Reason: Humour
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05-27-2011, 06:11 AM
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#4800 (permalink)
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VW Polo EV
Join Date: Aug 2009
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Kp & Ki
Can some one please explain the relationship between Kp & Ki in the controller settings & how do the different settings make the controller behave.
For example (for all examples use a 144V pack, the same motor & a 100Ah LiFePo battery pack):
If Kp is 2, what is the difference between having Ki at 20 or having Ki at 100.
What would the likely results be with the following different settings:
Kp 2 Ki 20
Kp 6 Ki 50
Kp 1 Ki 160
The wiki description does not really explain how the 2 interact together & what effect on the controller the differing settings actually make.
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