Go Back   EcoModder Forum > EcoModding > Fossil Fuel Free
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 09-17-2010, 12:23 PM   #331 (permalink)
EV test pilot
 
bennelson's Avatar
 
Join Date: Jan 2008
Location: Oconomowoc, WI, USA
Posts: 4,435

Electric Cycle - '81 Kawasaki KZ440
90 day: 334.6 mpg (US)

S10 - '95 Chevy S10
90 day: 30.48 mpg (US)

Electro-Metro - '96 Ben Nelson's "Electro-Metro"
90 day: 129.81 mpg (US)

The Wife's Car - Plug-in Prius - '04 Toyota Prius
90 day: 78.16 mpg (US)
Thanks: 17
Thanked 662 Times in 387 Posts
Quote:
Originally Posted by MPaulHolmes View Post
What does one do when there is no money, but time?
Sounds like Paul needs some old-fashioned Patronage!

He puts all of his hard work into these cool projects, and then just GIVES AWAY all this cool technology.

I encourage everyone who has been entertained, informed, or inspired by all he has done to send him $5 right now!

__________________


300mpg.org Learn how to BUILD YOUR OWN ELECTRIC CAR CHEAP
My YouTube Videos
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 09-17-2010, 02:48 PM   #332 (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 1,201 Times in 765 Posts
haha No Ben!! I'm fine. School starts on Monday, and I sold a couple kits a couple weeks into the vacation. So, you want to hear even more interesting news?! I sent in the power board layout too for the AC controller once I got that bankage (is that a word? hahaha) and it just arrived NOW!!! and then I found a 75 pound 9 HP AC motor on Ebay for $79 and $40 shipping. It also arrived NOW! (well, like 10 minutes ago). It may be able to be "rewound" using the trick from the Australian Electric Vehicle Association. Check out that link here:
You Australians are awesome!!!

The trick is to take a, say, 440v 1500RPM motor (numbers are chosen to make the math work out nicely in this example), and cut some of the windings and put them in parallel so that you get a 110v 1500 RPM motor. Then you run the motor at 4 times the rpm by overvolting it. So, now if you run it at 440v, it is doing 6000 rpm, which 4 times the power of what it was before. At least I think that's how it works. haha.

Hey! We also just got a donor car for FREE yesterday evening at 11pm. It's in really good shape. A Honda Civic hatchback. The owner, my wife's best friend, just gave it to us for nothing. It already got around 45 mpg when she drove it, so it's pretty efficient.
__________________
kits and boards
  Reply With Quote
The Following User Says Thank You to MPaulHolmes For This Useful Post:
mpgmike (01-26-2022)
Old 09-17-2010, 03:11 PM   #333 (permalink)
EcoModding Lurker
 
Join Date: Feb 2010
Location: Ann Arbor, MI
Posts: 53

ElectricZX2 - '98 Ford ZX2 Cool Coupe
90 day: 140.91 mpg (US)
Thanks: 0
Thanked 12 Times in 8 Posts
Awesome work Paul! So if you started with a 220v motor does that mean you could have twice the power on 110v? 440v is a crap ton of batteries!!! I shock myself all the time too when I work on my car (don't ask) so I'd be worried I might fry my brains out!
  Reply With Quote
Old 09-17-2010, 03:17 PM   #334 (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 1,201 Times in 765 Posts
I would never use 440v haha. I don't like going much over 72v myself. Let's say you start with a 220v 1750RPM motor. Let's say you cut windings to change it to a 110v 1750rpm motor. To double the power, you would have to "overvolt" it to 220v, which would give an rpm of 3500. Or you could just run it at 110v and get the same rpm that you would have gotten at 220v. Or you could (if you are lucky enough to know what windings to cut, and have access to them) change it to a 55v 1750 rpm motor, and then "overvolt" it to 110v and then you would have doubled the power, and 4 times the power at 220v, but then the rpm would start to get a little high.
__________________
kits and boards
  Reply With Quote
Old 09-17-2010, 03:42 PM   #335 (permalink)
EV test pilot
 
bennelson's Avatar
 
Join Date: Jan 2008
Location: Oconomowoc, WI, USA
Posts: 4,435

Electric Cycle - '81 Kawasaki KZ440
90 day: 334.6 mpg (US)

S10 - '95 Chevy S10
90 day: 30.48 mpg (US)

Electro-Metro - '96 Ben Nelson's "Electro-Metro"
90 day: 129.81 mpg (US)

The Wife's Car - Plug-in Prius - '04 Toyota Prius
90 day: 78.16 mpg (US)
Thanks: 17
Thanked 662 Times in 387 Posts
The trouble with AC systems is that since they tend to be higher voltages, you need LOTS of little batteries.

My friend's AC Dodge Neon is around 300V, with 27 or so 12V batteries in it.

I think that the Solectria Force was one of the most popular AC cars. That used a 156V AC system of 13 group27 size gel batteries.


Very exciting news about the car and the motor!
__________________


300mpg.org Learn how to BUILD YOUR OWN ELECTRIC CAR CHEAP
My YouTube Videos
  Reply With Quote
Old 09-17-2010, 05:20 PM   #336 (permalink)
Master EcoModder
 
Join Date: Sep 2008
Location: Texas
Posts: 632
Thanks: 0
Thanked 25 Times in 23 Posts
Use a boost converter just like the Prius does. The 2010 uses a pair of 650V motors.
__________________
If America manages to eliminate obesity, we would save as much fuel as if every American were to stop driving for three days every year. To be slender like Tiffany Yep is to be a real hypermiler...

Allie Moore and I have a combined carbon footprint much smaller than that of one average American...
  Reply With Quote
Old 09-18-2010, 04:50 AM   #337 (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 1,201 Times in 765 Posts
Holy cow, I soldered the 6 optocouplers where the 6 drivers were supposed to go. It took me like 6 hours to remove all the solder from the stupid holes and to put the 6 drivers in. Then I had to reorder the 6 hcpl-4506 optocouplers. I "overnighted" them, but tomorrow's saturday, so like an idiot, I just thought that was still a good idea. Know what? overnighting a shipment when the next day is saturday costs 2 times more than a normal overnighting. That was really really really dumb. I have to have that motor spin before monday. I HAVE TO!!! That's the rules. I didn't write 'em.

Hey, I put together a BOM for the AC controller. The new software as far as I can tell can't output the part numbers and name in the schematic. Like:

U7 IXDD4414pi
D1 abcdefg
R1 asflajsfsaf

So, I went through and typed each and every stinking part! There were like 300 of them I think. 97 resistors I believe, and 67 capacitors I think. We should post that bugger on the wiki I guess.
__________________
kits and boards
  Reply With Quote
Old 09-18-2010, 08:35 AM   #338 (permalink)
EcoModding Lurker
 
Join Date: Jul 2010
Location: Cleveland, OH
Posts: 89
Thanks: 5
Thanked 7 Times in 5 Posts
oh man that is the worst.. and a true test of patience.
  Reply With Quote
Old 09-18-2010, 10:46 AM   #339 (permalink)
ReVolt Enthusiast
 
Join Date: Jun 2009
Location: Michigan, USA
Posts: 239
Thanks: 98
Thanked 47 Times in 40 Posts
Quote:
Originally Posted by MPaulHolmes View Post
We should post that bugger on the wiki I guess.
Hey Paul,

Send me any files you want posted on the Wiki.

-Mark
  Reply With Quote
The Following User Says Thank You to sawickm For This Useful Post:
MPaulHolmes (09-18-2010)
Old 09-19-2010, 04:46 PM   #340 (permalink)
EcoModding Lurker
 
Join Date: Apr 2010
Location: Cali
Posts: 35
Thanks: 3
Thanked 4 Times in 3 Posts
Paul... you have me on the edge of my seat XD... Can't wait to hear how well it works.

Kinda curious... You have a heat-gun for soldering? Or just a nice iron?
The prior can be parted together pretty cheap if ya don't have one (and don't mind it being a bit of a hack-job, if an effective one) and makes a lot of SMT and through-hole work alot less difficult. Though I haven't had much time to play with mine--So far only replaced 2 of those gawd-awfully-tiny SMT resistors a few months back.
(Was a PC board a friend damaged accidentally when unscrewing something... thankfully it was one the few SMT resistors I've been able to actually look up the value of... ever... WTF thought leaving the numbers off those buggers was okay? -.-)

Hmmm. How many of those capacitors do you want to fit? I can think of some ways to fit quite a few :3...

Anyway xD watching with great anticipation.

  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Paul & Sabrina's cheap DIY 144v motor controller MPaulHolmes Open ReVolt: open source DC motor controller 7366 02-01-2022 09:52 AM
Paul & Sabrina's Cheap EV Conversion MPaulHolmes Fossil Fuel Free 542 11-12-2016 09:09 PM
Contest! Name Paul & Sabrina's controller MetroMPG Forum News & Feedback 120 10-22-2011 01:59 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com