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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 09-04-2008, 11:33 PM   #1 (permalink)
Addicted
 
bbjsw10's Avatar
 
Join Date: Jul 2008
Location: Findlay,OH
Posts: 555

bbjsw10 - '91 Geo Metro Xfi
90 day: 51.06 mpg (US)
Thanks: 0
Thanked 10 Times in 7 Posts
Electric Car Hub Motor

Found this while searching google images for electric cars. Searched on here and did not see it so I though I would share.

Thought it would make a nice coast assist motor if nothing else.

__________________
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 09-04-2008, 11:56 PM   #2 (permalink)
Addicted
 
bbjsw10's Avatar
 
Join Date: Jul 2008
Location: Findlay,OH
Posts: 555

bbjsw10 - '91 Geo Metro Xfi
90 day: 51.06 mpg (US)
Thanks: 0
Thanked 10 Times in 7 Posts
Did some math on these for a 155/80 12 like on my car.
At 350rpm = 22.67mph
850rpm = 55.06mph
I used this calculator.
__________________
  Reply With Quote
Old 09-05-2008, 10:09 AM   #3 (permalink)
EV test pilot
 
bennelson's Avatar
 
Join Date: Jan 2008
Location: Oconomowoc, WI, USA
Posts: 4,387

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: 14
Thanked 597 Times in 351 Posts
Those motors do look interesting.



The main thing I usually hear about hub motors for use in a car are questions about "sprung weight" since the weight of the motor is on the road instead of in the engine compartment, held up by the suspension.

Pretty cool that you can get ones that already have brake discs on them. Range of voltage isn't bad either, they have 48-96V versions.

My other concern is that they say "brushless DC". I know brushless controllers start to get a little on the fancy side (price!) and you would need one per wheel, so two controllers at a minimum. I am not sure how turns would effect the power/signal, etc going to the wheels either.

I would think that you could have one potentiometer sending the same signal to both motors, as long as everything is identical - exact same motor with same settings.

I really neat advantage of hub motors is that you don't need any room under the hood for the motor. Put two of these on the back of a Metro or Festiva, and you got a hot hybrid!!!
__________________


300mpg.org Learn how to BUILD YOUR OWN ELECTRIC CAR CHEAP
My YouTube Videos
  Reply With Quote
Old 09-05-2008, 11:25 AM   #4 (permalink)
Master EcoModder
 
Join Date: Jun 2008
Location: London, Ontario
Posts: 1,096

2k2Prot5 - '02 Mazda Protege5
90 day: 33.82 mpg (US)
Thanks: 0
Thanked 11 Times in 8 Posts
Yeah, used on the rear wheels as a hybrid would be pretty slick. Get up to speed, turn on your wheels and kill your engine... Wheel motors were used on the 600+hp electric BMW Mini that was posted before.
  Reply With Quote
Old 09-05-2008, 12:00 PM   #5 (permalink)
PaulH
 
MPaulHolmes's Avatar
 
Join Date: Feb 2008
Location: Maricopa, AZ (sort of. Actually outside of town)
Posts: 3,810

Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000
Thanks: 1,363
Thanked 1,096 Times in 722 Posts
No transmission, no adapter plate and coupler. All one gear probably. Man, that's clean. Kelly controllers have some pretty decent sized brushless controllers. I've heard Kelly controllers are "underpowered", but maybe they would work? 5 kWatt, on both back wheels makes, let's see, I have to do some figgerin...

5+5 = 10

10 kWatt!!! That's plenty! It's what my car is right now, and for in town driving, it has perfectly good acceleration. Plus, those brushless motors handle extra power just fine. They just get a bit toasty, but they'd be blowing in the wind, staying nice and cool.
__________________
kits and boards
  Reply With Quote
Old 09-05-2008, 12:32 PM   #6 (permalink)
Master EcoModder
 
Join Date: Jun 2008
Location: London, Ontario
Posts: 1,096

2k2Prot5 - '02 Mazda Protege5
90 day: 33.82 mpg (US)
Thanks: 0
Thanked 11 Times in 8 Posts
That's some fancy math you've got there. Glad to be in the shadow of such genius.
  Reply With Quote
Old 09-05-2008, 12:58 PM   #7 (permalink)
PaulH
 
MPaulHolmes's Avatar
 
Join Date: Feb 2008
Location: Maricopa, AZ (sort of. Actually outside of town)
Posts: 3,810

Michael's Electric Beetle - '71 Volkswagen Superbeetle 500000
Thanks: 1,363
Thanked 1,096 Times in 722 Posts
It's not a problem. As long as it's not my 8's I can add any pair of numbers from 0 to 9. So, feel free to let me know if there are any questions... For example, if there was a hub motor that was 9 kWatts, and another that was 5 kWatts, I could hook a brother up.

Have you guys seen the hub motors built in Italy for some GM prototype that were like 20 kWatts EACH! Where the crap are those??? I remember their grand plan was to use the hub motors only to improve acceleration of their gasoline car! Such vision! 20/200 vision. Did they sell the technology to Cobasys?

Oh No! I just wrapped copper around a nail, and hooked it to a battery. Quick, arrest me for patent infringement! haha!
__________________
kits and boards
  Reply With Quote
Old 09-05-2008, 05:21 PM   #8 (permalink)
Addicted
 
bbjsw10's Avatar
 
Join Date: Jul 2008
Location: Findlay,OH
Posts: 555

bbjsw10 - '91 Geo Metro Xfi
90 day: 51.06 mpg (US)
Thanks: 0
Thanked 10 Times in 7 Posts
Quote:
Originally Posted by bennelson View Post
I really neat advantage of hub motors is that you don't need any room under the hood for the motor. Put two of these on the back of a Metro or Festiva, and you got a hot hybrid!!!
My thought exactly.

Quote:
Originally Posted by MazdaMatt View Post
Get up to speed, turn on your wheels and kill your engine...
Or backwards of this use efficient electric to accel then bump start car and cruise with gas at high MPG. Let the electric do the bad mpg stuff accel, stop and go, etc. You may even be able to sneak through a drive-thru once in awhile.


Quote:
Originally Posted by MPaulHolmes View Post
No transmission, no adapter plate and coupler. All one gear probably. Man, that's clean. I have to do some figgerin...

5+5 = 10
I like the simplicity of these as well.

And I see you and me had same math teacher.
__________________
  Reply With Quote
Old 09-05-2008, 10:30 PM   #9 (permalink)
EcoModding Apprentice
 
Join Date: Sep 2008
Location: Australia
Posts: 109
Thanks: 1
Thanked 5 Times in 5 Posts
Why doesn't someone do something similar that is retro fittable to current cars ie, a 14" rim with the brushless motor built in the outer rim even if it required low profiles to fit, or alternately offset outwards, thus allowing any car to become a hybrid by just replacing the wheel and wiring up, even brake regen could be built in.
Would particularly suit FWD's and replace the rear wheels.
  Reply With Quote
Old 09-06-2008, 01:39 AM   #10 (permalink)
EcoModding Lurker
 
Join Date: Aug 2008
Location: Maryland
Posts: 92

Taurus - '99 Ford Taurus SE
90 day: 17.89 mpg (US)

Windstar1 - '97 Ford Windstar Cargo
90 day: 16.99 mpg (US)

Vulcan - '97 Kawasaki Vulcan 750
90 day: 45.96 mpg (US)

Suzuki - '09 Suzuki SX4 Technology AWD
90 day: 24.62 mpg (US)
Thanks: 0
Thanked 0 Times in 0 Posts
because its not that easy.

  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Can I use a GENERATOR to power an Electric car directly? Nerys Fossil Fuel Free 128 10-01-2012 01:24 AM
Active grill block idea holypaulie Aerodynamics 17 10-13-2008 09:31 AM
My First Electric car Experience WaxyChicken The Lounge 8 09-05-2008 08:46 PM
Home Brew Challenge for Electric Geniuses (make a DIY electric motor controller) WaxyChicken Off-Topic Tech 42 08-19-2008 01:05 AM
electric bike kit - hub motor bennelson For Sale 6 05-19-2008 09:52 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com