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Search took 0.32 seconds. Search: Posts Made By: Astro
Forum: Fossil Fuel Free 09-16-2016, 12:19 PM
Replies: 3,480
Views: 916,527
Posted By MPaulHolmes
Well, something crazy happened! I emailed the...

Well, something crazy happened! I emailed the pictures to myself on the phone, and they emailed... Oh yes, it also has reverse polarity protection, as well as a fuse, and overvoltage protection on...
Forum: Fossil Fuel Free 09-16-2016, 01:33 AM
Replies: 3,480
Views: 916,527
Posted By MPaulHolmes
I got a new board made! I just want to mention...

I got a new board made! I just want to mention that I have really appreciated having Astro's controller for testing. I"m going to solder him one of the new boards.

This one includes voltage...
Forum: Fossil Fuel Free 07-11-2016, 07:25 AM
Replies: 3,480
Views: 916,527
Posted By MPaulHolmes
Oh no, you can just put the motor in the car. It...

Oh no, you can just put the motor in the car. It doesnt have to be tested on a bench. The PI test is actually a locked rotor test, but it only lasts like 1/20 of a sec so yhe post doesnt have time...
Forum: Fossil Fuel Free 04-30-2016, 07:41 AM
Replies: 3,480
Views: 916,527
Posted By MPaulHolmes
Thank you!! This is really good data. In theory...

Thank you!! This is really good data. In theory yhe hardware overcurrent is supposed to be 600amp (peak), and 350rms is about 500amp. My guess is that at that current the PI loop is staying...
Forum: Fossil Fuel Free 04-27-2016, 11:59 PM
Replies: 3,480
Views: 916,527
Posted By thingstodo
Update for April 27 continued Here are the...

Update for April 27 continued

Here are the log files for my test tonight:
AC1 and DC1 the AC controller started to cut back on over-temperature
AC2 and DC2 I hit the AC over-current, but I was...
Forum: Open ReVolt: open source DC motor controller 04-06-2016, 10:06 AM
Replies: 7,381
Views: 2,411,499
Posted By MPaulHolmes
I'm actually very happy to have this, and it's...

I'm actually very happy to have this, and it's extremely useful for me. Take the throttle you have and (if it's practical) power it up. It has a +5v and ground wire. Then, see what the voltage is...
Forum: Open ReVolt: open source DC motor controller 03-18-2016, 01:32 PM
Replies: 7,381
Views: 2,411,499
Posted By MPaulHolmes
We just got thingstodo's controller put together....

We just got thingstodo's controller put together. It should be good to about 1400-1500amp peak, 350-400v. Here's a test at 24v on my golf cart:...
Forum: Fossil Fuel Free 03-01-2016, 08:56 AM
Replies: 3,480
Views: 916,527
Posted By MPaulHolmes
Here's one of the new boards I ordered: ...

Here's one of the new boards I ordered:
http://i419.photobucket.com/albums/pp280/MPaulHolmes/NewACController.png (http://s419.photobucket.com/user/MPaulHolmes/media/NewACController.png.html)

It's...
Forum: Fossil Fuel Free 02-29-2016, 01:39 AM
Replies: 423
Views: 126,057
Posted By MPaulHolmes
Toyota MGR first test video

Here's a video of the motor spinning at 120vDC with saliency constant of +infinity (so treating it like a regular permanent magnet motor. Id = 0, Iq = throttle. I'll run some tests later to find...
Forum: Fossil Fuel Free 02-23-2016, 01:53 PM
Replies: 58
Views: 8,660
Posted By oil pan 4
Yeah $7 worth of natural gas, when I figured up...

Yeah $7 worth of natural gas, when I figured up those numbers would have been about 2MMBTU (if you could fill at home). Natural gas pumps at gas stations charge some where around $1.50 per gallon of...
Forum: Fossil Fuel Free 02-18-2016, 09:31 PM
Replies: 58
Views: 8,660
Posted By oil pan 4
Calling hydrogen fossil fuel free is hilarious. ...

Calling hydrogen fossil fuel free is hilarious.
If it were battery powered it would be cheaper to buy, cheaper to refuel, easier to refuel, actually have the possibility of actually being fossil...
Forum: Fossil Fuel Free 02-18-2016, 04:54 PM
Replies: 58
Views: 8,660
Posted By thingstodo
Past performance is not a good indicator of...

Past performance is not a good indicator of future performance ... :D

I'm good with any sort of change away from gasoline and diesel. Hydraulic hybrids, solar cars, compressed air motors ... even...
Forum: Fossil Fuel Free 02-12-2016, 12:07 PM
Replies: 54
Views: 12,649
Posted By MPaulHolmes
This is a huge step!! And you are doing it...

This is a huge step!! And you are doing it right. There's really not THAT much that you have to do to get it driveable. Stick a motor on, stick some batteries on your lap, and drive away.
Forum: Fossil Fuel Free 02-11-2016, 09:56 PM
Replies: 3,480
Views: 916,527
Posted By thingstodo
AWESOME! If you would like someone to...

AWESOME! If you would like someone to critique/comment on the instructions - I am available!

Paul - what do you say to an official release version number? Change the firmware from 1.00 to .....
Forum: Fossil Fuel Free 02-11-2016, 05:44 PM
Replies: 3,480
Views: 916,527
Posted By WindyDrew
Received my controller today from Paul. Plan on...

Received my controller today from Paul. Plan on writing a instruction guide with pics as I put my race car together. Thanks
Forum: Fossil Fuel Free 02-03-2016, 05:53 PM
Replies: 3,480
Views: 916,527
Posted By MPaulHolmes
Is it just me, or was that freaking awesome? I'm...

Is it just me, or was that freaking awesome? I'm surprised that there are no occasional overcurrent trips. Things seem to be pretty under control. Oh that just makes me so happy!
Forum: Fossil Fuel Free 02-03-2016, 05:26 PM
Replies: 3,480
Views: 916,527
Posted By thingstodo
Jan 31 update I tried again to get over 360...

Jan 31 update

I tried again to get over 360 AC Amps, with a freshly-charged Lead-acid pack.

Log file and spreadsheet attached.

https://youtu.be/GR2rcev1Mlo
Forum: Fossil Fuel Free 01-22-2016, 11:39 PM
Replies: 3,480
Views: 916,527
Posted By thingstodo
Update from Jan 22 A rarity - I got 20...

Update from Jan 22

A rarity - I got 20 minutes to try Paul's new firmware, at least in a limited way, and I'm getting the results posted ON THE SAME DAY!

Without video, since I did not stop to...
Forum: Fossil Fuel Free 12-09-2015, 09:02 AM
Replies: 3,480
Views: 916,527
Posted By thingstodo
As usual, 'normal' is subject to interpretation ...

As usual, 'normal' is subject to interpretation

460V US three phase is 'nominal' 650V peak to peak, but the motors will take the 480V that is the actual output of the transformers, plus 5% easily,...
Forum: Fossil Fuel Free 12-06-2015, 12:17 PM
Replies: 3,480
Views: 916,527
Posted By thingstodo
Yes, I just close a contactor to the 24V circuit...

Yes, I just close a contactor to the 24V circuit - no DC controller - to run the Warp9 DC motor. That's why it is a separate battery pack, and why it is such a low voltage. The unloaded speed of...
Forum: Fossil Fuel Free 11-30-2015, 04:30 PM
Replies: 3,480
Views: 916,527
Posted By e*clipse
LOL! It's all good - that guy in back is holding...

LOL! It's all good - that guy in back is holding it up. :p
Forum: Fossil Fuel Free 11-25-2015, 10:07 AM
Replies: 3,480
Views: 916,527
Posted By MPaulHolmes
OK I"m done with the lookup table and binary...

OK I"m done with the lookup table and binary search for going from A/D result to resistance to degrees celcius. I should have done that a long time ago. It really helps having another person test...
Forum: Fossil Fuel Free 11-07-2015, 11:36 PM
Replies: 3,480
Views: 916,527
Posted By thingstodo
Nov 2 - 24V load test Drive the DC motor...

Nov 2 - 24V load test

Drive the DC motor with two deep cycle batteries this time around. Still no controller - none of mine work right now.

Put the AC controller and AC motor into regenerative...
Forum: Fossil Fuel Free 09-18-2015, 12:45 AM
Replies: 3,480
Views: 916,527
Posted By thingstodo
Update for Sep 17 It seems that I owe Paul...

Update for Sep 17

It seems that I owe Paul an apology ...

But first!

foc test 15 showed a slip in the encoder coupler. No useful information.

foc test 16 - run-rotor-test does not...
Forum: Fossil Fuel Free 09-09-2015, 12:05 PM
Replies: 3,480
Views: 916,527
Posted By MPaulHolmes
Oh heck, I'll add "config" and "settings" and we...

Oh heck, I'll add "config" and "settings" and we can go from there. I'll automatically save the best rotor time constant once it's found. The command is
rotor-time-constant-index 13
(or whatever...
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