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Search took 0.08 seconds. Search: Posts Made By: duncan
Forum: Open ReVolt: open source DC motor controller 11-19-2015, 12:31 AM
Replies: 7,381
Views: 2,411,548
Posted By MPaulHolmes
In theory 388v should be fine. in theory......

In theory 388v should be fine. in theory... haha. They are 600v components, so I doubt 388v is a concern. How much is it fully charged?
Forum: Open ReVolt: open source DC motor controller 03-05-2015, 01:11 AM
Replies: 7,381
Views: 2,411,548
Posted By Bela
I didn't want to spam the forum but OK here goes:...

I didn't want to spam the forum but OK here goes:

Why did the cowboy get a dachsund?

People kept telling him to get a long little doggie.
Forum: Open ReVolt: open source DC motor controller 01-17-2015, 02:02 PM
Replies: 7,381
Views: 2,411,548
Posted By flores
So I'm BACK!!! Sorry for the delay friends,...

So I'm BACK!!!

Sorry for the delay friends, I've been busy.
Today I mounted the controller in the beetle.

Set the amps limit to 300 (so that is 1200A) and took it for a spin... it drives...
Forum: Open ReVolt: open source DC motor controller 12-14-2014, 11:30 PM
Replies: 7,381
Views: 2,411,548
Posted By MPaulHolmes
I was thinking of calling it "The Stinky Diaper",...

I was thinking of calling it "The Stinky Diaper", because it's inappropriate and unprofessional, and I change a lot of diapers. If that sounds like a bad idea, I'm open to suggestions. haha. I'm...
Forum: Open ReVolt: open source DC motor controller 12-05-2014, 09:39 PM
Replies: 7,381
Views: 2,411,548
Posted By 64jeep
I've got a standard Warp 9 and it works fine...

I've got a standard Warp 9 and it works fine because the PWM never gets high enough for the motor voltage to reach 170v. In fact if I was at 100% duty cycle I think the pack voltage would sag to...
Forum: Open ReVolt: open source DC motor controller 12-05-2014, 09:10 PM
Replies: 7,381
Views: 2,411,548
Posted By thingstodo
My warp 9 and warp 11 are rated for 160V, maybe...

My warp 9 and warp 11 are rated for 160V, maybe 170V. I read somewhere .. perhaps over at EVTV? .. that you start to damage the brushes above 170V. I don't remember if it's just the brushes that...
Forum: Open ReVolt: open source DC motor controller 12-03-2014, 07:35 PM
Replies: 7,381
Views: 2,411,548
Posted By MPaulHolmes
Question posted! Now I'm waiting for replies... ...

Question posted! Now I'm waiting for replies... There are some crazy smart people on there, so we should get some good insight.
Forum: Open ReVolt: open source DC motor controller 12-03-2014, 07:13 PM
Replies: 7,381
Views: 2,411,548
Posted By MPaulHolmes
Ya, all the controller can do is ramp up to 100%...

Ya, all the controller can do is ramp up to 100% duty, at which point it's basically a dead short from the batteries through the motor. I remember you saying that at one point the battery amps were...
Forum: Open ReVolt: open source DC motor controller 12-01-2014, 09:01 AM
Replies: 7,381
Views: 2,411,548
Posted By MPaulHolmes
Man that was a hilarious story Duncan! It sounds...

Man that was a hilarious story Duncan! It sounds like a lot of fun!! You should be able to do 350v-400v or so and a peak current of maybe 1200-1400amp. The igbts and ring cap are good to about...
Forum: Open ReVolt: open source DC motor controller 11-24-2014, 04:36 AM
Replies: 7,381
Views: 2,411,548
Posted By MPaulHolmes
hello! That's great to hear. The hissing is the...

hello! That's great to hear. The hissing is the spread spectrum switching so there won't be a piercing 8khz tone. Will the races be filmed? I'm curious to see you in action!
Forum: Open ReVolt: open source DC motor controller 11-19-2014, 12:34 AM
Replies: 7,381
Views: 2,411,548
Posted By MPaulHolmes
Yahoo!!!!!!! I can send you 1200amp code...

Yahoo!!!!!!!

I can send you 1200amp code tonight if you want. I will do that. And you can use it if you want.
Forum: Open ReVolt: open source DC motor controller 11-18-2014, 10:25 PM
Replies: 7,381
Views: 2,411,548
Posted By MPaulHolmes
Crap, I wonder what I had the hardware...

Crap, I wonder what I had the hardware overcurrent set to. There's a little cube shaped pot on the control board. I can't remember how far I have it twisted clockwise. Fully Clockwise should cause...
Forum: Open ReVolt: open source DC motor controller 11-13-2014, 03:01 PM
Replies: 7,381
Views: 2,411,548
Posted By MPaulHolmes
I don't know what the response time is in your...

I don't know what the response time is in your motor's case. The throttle ramp rate is maximum, but the PI loop may need to be tuned for faster response. It's set for 1000amp at the moment. Do you...
Forum: Open ReVolt: open source DC motor controller 11-13-2014, 04:32 AM
Replies: 7,381
Views: 2,411,548
Posted By MPaulHolmes
We will have to do the PI loop differently if you...

We will have to do the PI loop differently if you want a really fast response from the throttle. I finally learned how it works while doing the AC controller. What you have now may turn out to be a...
Forum: Open ReVolt: open source DC motor controller 11-13-2014, 01:07 AM
Replies: 7,381
Views: 2,411,548
Posted By MPaulHolmes
I think you need to select the dspic30f4011...

I think you need to select the dspic30f4011 device. Maybe a different microcontroller is selected. I'm on my phone, but will be on the computer later

The yellow dot on the board (closest pin to...
Forum: Open ReVolt: open source DC motor controller 11-02-2014, 09:39 PM
Replies: 7,381
Views: 2,411,548
Posted By MPaulHolmes
Hi Duncan, I'll email you the new code hex file...

Hi Duncan, I'll email you the new code hex file (and c code if you want it).

I love manual contactor control!

Yes, you need to provide the controller with 9-18v.

The pins on the pickit are...
Forum: Open ReVolt: open source DC motor controller 09-30-2014, 09:44 AM
Replies: 7,381
Views: 2,411,548
Posted By MPaulHolmes
Oh crap, it might be 300 amps at full throttle. ...

Oh crap, it might be 300 amps at full throttle. Haha. I also think the serial reprogramming isnt enabled on the code you have. And no thermal cutback enabled. You need the latest code. Do you...
Forum: Open ReVolt: open source DC motor controller 09-30-2014, 09:14 AM
Replies: 7,381
Views: 2,411,548
Posted By MPaulHolmes
You can cut off the precharge and contactor wire...

You can cut off the precharge and contactor wire and LED wire. The LED does nothing at this point. Cut it off too if you want. I think your code is fine except the temperature sensing is disabled....
Forum: Open ReVolt: open source DC motor controller 09-24-2014, 10:48 AM
Replies: 7,381
Views: 2,411,548
Posted By MPaulHolmes
OK, J6 is for powering the main contactor coil. ...

OK, J6 is for powering the main contactor coil.
J5 is for powering the precharge relay coil (J5 is NOT the precharge relay, just for powering the precharge relay coil. The precharge relay must...
Forum: Open ReVolt: open source DC motor controller 07-16-2014, 02:49 AM
Replies: 7,381
Views: 2,411,548
Posted By flores
Jerald, If you connect a computer to the...

Jerald,

If you connect a computer to the serial port you can adjust the max amps yourself. Do you have a computer with com port ? or serial USB cable?
Forum: Open ReVolt: open source DC motor controller 07-08-2014, 09:17 PM
Replies: 7,381
Views: 2,411,548
Posted By Astro
I'll take a stab at this one. Welly probably...

I'll take a stab at this one. Welly probably refers to rubber boot / gum boot / waders, you know the ones. Black knee high rubber boots for splashing in mud and puddles.

Giving it more welly is...
Forum: Open ReVolt: open source DC motor controller 07-07-2014, 01:16 PM
Replies: 7,381
Views: 2,411,548
Posted By MPaulHolmes
Duncan, I tested yours in my golf cart. If the...

Duncan, I tested yours in my golf cart. If the code needs tweaking, you will need a pickit2 or 3. They are like $35 or so. It drove around without any problems, but it was a very limited test. ...
Forum: Open ReVolt: open source DC motor controller 07-03-2014, 02:47 AM
Replies: 7,381
Views: 2,411,548
Posted By jedsmd
End Panel details ...

End Panel details
http://i.imgur.com/xSEAOj7.jpg


http://i.imgur.com/OctZTzl.jpg
Cut a piece of ABS the size of the end of the controller. I used 1/8" sheet because I had some, I think 1/4"...
Forum: Open ReVolt: open source DC motor controller 07-01-2014, 11:01 AM
Replies: 7,381
Views: 2,411,548
Posted By jedsmd
The cardboard box was smooshed up some also, so I...

The cardboard box was smooshed up some also, so I pretty sure it was tossed around by the post office.



The ends caps are actually pretty easy, no special tools or skills required. If anyone...
Forum: Open ReVolt: open source DC motor controller 06-24-2014, 01:42 AM
Replies: 7,381
Views: 2,411,548
Posted By MPaulHolmes
Ok you guys! Mr donut (duncan), arnold...

Ok you guys! Mr donut (duncan), arnold Schwarzenegger ( Mr. Olympia), and hamster beaver ( hamster dam), 2 of them will ship tomorrow. I got one boxed by 5:30pm, but my post office closes at 4pm. ...
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