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Today's Topics:
1. Re: 5w 12v -25 pound motor solar power( Tommey Reed) (Mark Dutko)
2. Re: PFC-50 Hookup to 120V ((-Phil-))
3. Alternators: 1 on each wheel + 3 in the front (Steve Kobb)
4. Re: GM Hiring for VOLT related stuff (Tim Humphrey)
5. Tonight: Pullman EV Club meeting (Roger Daisley)
6. Re: Alternators: 1 on each wheel + 3 in the front
(Dan Frederiksen)
7. Re: Bench Testing Curtis 1221b controller, more info.
(Bill & Nancy)
8. Re: Alternators: 1 on each wheel + 3 in the front
(Peter VanDerWal)
9. Re: GM Hiring for VOLT related stuff (Bill Dube)
10. Re: 5w 12v -25 pound motor solar power( Tommey Reed)
(Peter VanDerWal)
11. K2, yet another unresponsive battery company (Dan Frederiksen)
12. Re: economy ac controller (Lee Hart)
13. Our 2 cars were a hit at EVS-23 (Michael T Kadie)
14. Re: economy ac controller (Andre' Blanchard)
15. Re: The "best" charger. ([EMAIL PROTECTED])
16. Re: economy ac controller (Andre' Blanchard)
17. Re: Our 2 cars were a hit at EVS-23 (Dan Frederiksen)
18. Re: K2, yet another unresponsive battery company (Morgan LaMoore)
19. Re: K2, yet another unresponsive battery company (Dan Frederiksen)
20. International Battery Inc (Ian Ward)
21. Re: International Battery Inc (Bob Rice)
22. Re: K2, yet another unresponsive battery company (Peter Oliver)
23. Re: EVS-23 Photos ([EMAIL PROTECTED])
24. Re: International Battery Inc (Chuck Homic)
25. Re: The "best" charger. (Dominant)
26. Re: EVS-23 Photos (Ian Ward)
27. Re: 5w 12v -25 pound motor solar power( Tommey Reed) (Dominant)
28. PHET Batteries (EV Pete)
29. Re: Brusa NLG5 charging profile for Deka 8G24M (tehben)
30. ADC motor for sale (Mark Thomasson)
31. Re: Alternators: 1 on each wheel + 3 in the front (Tom Shay)
32. Re: The "best" charger. (Gail Lucas)
33. Batteries for Jet 007 (Clif Martin)
34. Re: "still need a good affordable motor" AC (Jeff Shanab)
35. Re: economy ac controller (Jeff Shanab)
36. Where's KillaCycle? and EVS23 Radio show...
(Dave (Battery Boy) Hawkins)
37. Re: Brusa NLG5 charging profile for Deka 8G24M (storm connors)
38. Re: "still need a good affordable motor" AC (Ryan Stotts)
39. Re: International Battery Inc (storm connors)
40. Re: economy ac controller (Joe Fields)
41. Re: economy ac controller (Ryan Stotts)
----------------------------------------------------------------------
Message: 1
Date: Wed, 5 Dec 2007 12:03:38 -0800
From: Mark Dutko <[EMAIL PROTECTED]>
Subject: Re: [EVDL] 5w 12v -25 pound motor solar power( Tommey Reed)
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
25 years ago I hooked a tiny solar panel a few inched square to a dc
motor with a fan and it went quite fast. I'm not sure what it is you
are demonstrating. A load lest? A better motor? An inverter that runs
off solar? Your videos are entertaining but I am having a difficult
time understanding your objective.
On Dec 5, 2007, at 11:27 AM, [EMAIL PROTECTED] wrote:
> This motor has higher efficient the motor today...
> http://www.youtube.com/watch?v=bloOBX3Qw8s
> ________________________________________________________________________
> More new features than ever. Check out the new AIM(R) Mail ! -
> http://o.aolcdn.com/cdn.webmail.aol.com/mailtour/aol/en-us/text.htm?ncid=aimcmp00050000000001
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
------------------------------
Message: 2
Date: Wed, 5 Dec 2007 12:03:45 -0800
From: "(-Phil-)" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] PFC-50 Hookup to 120V
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
I'd wire it like this:
ground to ground
neutral on 5-15 to neutral AND L2 on 14-50
hot on 5-15 to L1 on 14-50
-Phil
----- Original Message -----
From: "MIKE WILLMON" <[EMAIL PROTECTED]>
To: <ev@lists.sjsu.edu>
Sent: Wednesday, December 05, 2007 10:52 AM
Subject: [EVDL] PFC-50 Hookup to 120V
> While my PFC-20 is out for some R&R I need to use the PFC-50 from my Pinto
> project to charge my truck. I have no 240VAC outlet in my garage, yet.
> But 12-14 amps at 120V has been sufficient for me using the PFC-20. So my
> question is about using the 14-50 plug that is on the PFC-50. I have a
> 14-50 receptacle and want to pigtail it to a 5-15 plug. Do I wire the the
> Line and Neutral on the 5-15P to L1 and Neutral on the 14-50R?....or to L1
> and L2 on the 14-50R?
>
> Mike
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
------------------------------
Message: 3
Date: Wed, 5 Dec 2007 12:03:53 -0800 (PST)
From: Steve Kobb <[EMAIL PROTECTED]>
Subject: [EVDL] Alternators: 1 on each wheel + 3 in the front
To: ev@lists.sjsu.edu
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=us-ascii
I was talking with a mechanic today about EVs. He told me that he'd seen an
interesting one lately.
The story got my curiosity, so I thought I'd share it with the list to see
what others might have to say about it.
Here goes:
According to my friend, a Vietnamese mechanic here in Houston has converted
an older, non-Bug VW to electric power. I can't remember how many batteries
were used, but there weren't many.
The surprising thing, though, is how he kept these things powered. He built
a bracket over each wheel well, and to this bracket, he attached an
alternator. So -- 4 wheels with 4 alternators... and all this stuff is
hanging off the OUTSIDE of the car.
Then, on the hub of each wheel, he's got a pulley... and, of course, there's
a belt turning each alternator.
Last, but not least, he's got 2 or 3 alternators on the front of the car,
and each of them are driven by fans.
Again, according to my mechanic friend, the owner of this EV is able to
drive around 6 hours on his rather modest battery pack... and he's taken the
car up to 110 mph.
Now, does this seem plausible to you? Have any laws of physics been broken
here?
Your comments are welcome.
Steve Kobb
--
View this message in context:
http://www.nabble.com/Alternators%3A-1-on-each-wheel-%2B-3-in-the-front-tf4952003s25542.html#a14179505
Sent from the Electric Vehicle Discussion List mailing list archive at
Nabble.com.
------------------------------
Message: 4
Date: Wed, 5 Dec 2007 13:17:48 -0700
From: Tim Humphrey <[EMAIL PROTECTED]>
Subject: Re: [EVDL] GM Hiring for VOLT related stuff
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="UTF-8"
On Wed, 5 Dec 2007 13:17:00 -0500, "james s" <[EMAIL PROTECTED]> wrote:
> This sounds positive, skepticism aside, could you get contact
> information for the hiring manager from GMs staff for those of us
> interested and not at EVS? This may be a good opportunity for those
> wishing to be in the belly of the beast and effect some change from
> the inside.
>
> James - Canada
>
http://www.gm.com/corporate/careers/jobsearch.jsp?p=search&term=job_search_professional
use search keyword; hybrid
three locations, 57 jobs
Torrance California
Indianapolis Indiana
Warren Michigan
Good luck!
--
Stay Charged!
Hump
I-5, Blossvale NY
------------------------------
Message: 5
Date: Wed, 5 Dec 2007 12:27:54 -0800
From: "Roger Daisley" <[EMAIL PROTECTED]>
Subject: [EVDL] Tonight: Pullman EV Club meeting
To: "'Electric Vehicle Discussion List'" <ev@lists.sjsu.edu>
Message-ID:
<!&!AAAAAAAAAAAYAAAAAAAAAOcyJwVXjiRPrt0SMPw+0CPCgAAAEAAAAPrPLY50yf1IgPsd/[EMAIL
PROTECTED]>
Content-Type: text/plain; charset="us-ascii"
Tonight will be the very first meeting of the Pullman (WA) EV club. The
purpose of the club is to promote, advise and encourage EV purchase,
construction and conversions within the club membership, but also to raise
positive awareness of EV's within the community.
Place: Pullman, WA, Pizza Hut (Next to Kinko's)
Time: 6:30PM
Contact: Roger Daisley
[EMAIL PROTECTED]
1-877-454-0205
Everyone is welcome
------------------------------
Message: 6
Date: Wed, 05 Dec 2007 21:38:55 +0100
From: Dan Frederiksen <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Alternators: 1 on each wheel + 3 in the front
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Steve Kobb wrote:
> Now, does this seem plausible to you? Have any laws of physics been broken
> here?
>
no on both counts I'm afraid. while you can run a car with fans just as
you can run a ship with sails it has little to do with 110mph for 6
hours. I would be surprised if the attachments would add anything in
range to a typical drive. while I believe the fantastic is possible,
indeed I know it is, I'm afraid the car in question is either by a
deranged man or a comedian
Dan
------------------------------
Message: 7
Date: Wed, 05 Dec 2007 12:43:36 -0800
From: Bill & Nancy <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Bench Testing Curtis 1221b controller, more info.
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Thanks for the advise on testing the controller. Good to know it works.
Bill
(-
Phil-) wrote:
> Sounds like the controller works!
>
> I assume 40 watts isn't enough to keep the high peaks from screwing with the
> controller.
>
> -Phil
>
>
>> ________________________________________
>> For subscription options, see
>> http://lists.sjsu.edu/mailman/listinfo/ev
>>
>>
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
>
------------------------------
Message: 8
Date: Wed, 5 Dec 2007 14:38:10 -0700 (MST)
From: "Peter VanDerWal" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Alternators: 1 on each wheel + 3 in the front
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain;charset=iso-8859-1
You do realize that April 1st was over 7 months ago, right?
>
> I was talking with a mechanic today about EVs. He told me that he'd seen
> an
> interesting one lately.
>
> The story got my curiosity, so I thought I'd share it with the list to see
> what others might have to say about it.
>
> Here goes:
>
> According to my friend, a Vietnamese mechanic here in Houston has
> converted
> an older, non-Bug VW to electric power. I can't remember how many
> batteries
> were used, but there weren't many.
>
> The surprising thing, though, is how he kept these things powered. He
> built
> a bracket over each wheel well, and to this bracket, he attached an
> alternator. So -- 4 wheels with 4 alternators... and all this stuff is
> hanging off the OUTSIDE of the car.
>
> Then, on the hub of each wheel, he's got a pulley... and, of course,
> there's
> a belt turning each alternator.
>
> Last, but not least, he's got 2 or 3 alternators on the front of the car,
> and each of them are driven by fans.
>
> Again, according to my mechanic friend, the owner of this EV is able to
> drive around 6 hours on his rather modest battery pack... and he's taken
> the
> car up to 110 mph.
>
> Now, does this seem plausible to you? Have any laws of physics been broken
> here?
>
> Your comments are welcome.
>
> Steve Kobb
>
> --
> View this message in context:
> http://www.nabble.com/Alternators%3A-1-on-each-wheel-%2B-3-in-the-front-tf4952003s25542.html#a14179505
> Sent from the Electric Vehicle Discussion List mailing list archive at
> Nabble.com.
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
--
If you send email to me, or the EVDL, that has > 4 lines of legalistic
junk at the end; then you are specifically authorizing me to do whatever I
wish with the message. By posting the message you agree that your long
legalistic signature is void.
------------------------------
Message: 9
Date: Wed, 05 Dec 2007 13:49:50 -0700
From: Bill Dube <[EMAIL PROTECTED]>
Subject: Re: [EVDL] GM Hiring for VOLT related stuff
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="us-ascii"; format=flowed
I picked up the job listing sheet, but gave it to a fellow EVer at
the show that mentioned he was looking for a job. I have no contact
information. All I know is they are beating the bushes for EV
technical folks and I thought I'd pass that along.
Sorry,
Bill Dube'
At 11:17 AM 12/5/2007, you wrote:
>This sounds positive, skepticism aside, could you get contact
>information for the hiring manager from GMs staff for those of us
>interested and not at EVS? This may be a good opportunity for those
>wishing to be in the belly of the beast and effect some change from
>the inside.
>
>James - Canada
>
>On Dec 5, 2007 3:00 AM, Bill Dube <[EMAIL PROTECTED]> wrote:
> > Just got back from the EVS-23.
> >
> > I dropped by the GM booth chatted a bit. It turns out that they are
> > actively looking for electric vehicle types for quite a variety of
> > positions. I looked at a long list of slots they were trying to fill
> > and I recall seeing technicians, battery testing engineers, electric
> > drive system engineers, ICE engine engineers and about twenty other
> > categories, some in project management, etc.
> >
> > Months ago I was skeptical about how committed GM was to the VOLT,
> > now I am convinced that they are "betting the farm" on the VOLT. They
> > are genuinely scrambling to make this car happen and get to market as
> > quickly as they can. It is definitely not a token effort as some have
> > suggested, but an all out push to make it happen.
> >
> > Bill Dube'
> >
> > _______________________________________________
> > For subscription options, see
> > http://lists.sjsu.edu/mailman/listinfo/ev
> >
>
>_______________________________________________
>For subscription options, see
>http://lists.sjsu.edu/mailman/listinfo/ev
------------------------------
Message: 10
Date: Wed, 5 Dec 2007 14:39:58 -0700 (MST)
From: "Peter VanDerWal" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] 5w 12v -25 pound motor solar power( Tommey Reed)
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain;charset=iso-8859-1
So you've doubled you efficiency? For zero precent to 2x zero percent?
> This motor has higher efficient the motor today...
> http://www.youtube.com/watch?v=bloOBX3Qw8s
> ________________________________________________________________________
> More new features than ever. Check out the new AIM(R) Mail ! -
> http://o.aolcdn.com/cdn.webmail.aol.com/mailtour/aol/en-us/text.htm?ncid=aimcmp00050000000001
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
--
If you send email to me, or the EVDL, that has > 4 lines of legalistic
junk at the end; then you are specifically authorizing me to do whatever I
wish with the message. By posting the message you agree that your long
legalistic signature is void.
------------------------------
Message: 11
Date: Wed, 05 Dec 2007 22:21:48 +0100
From: Dan Frederiksen <[EMAIL PROTECTED]>
Subject: [EVDL] K2, yet another unresponsive battery company
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I sent a request for a quote on 2000 cells a few days ago. nothing yet.
anyone else get a response?
------------------------------
Message: 12
Date: Wed, 05 Dec 2007 15:03:26 -0600
From: Lee Hart <[EMAIL PROTECTED]>
Subject: Re: [EVDL] economy ac controller
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=windows-1252; format=flowed
Arak Leatham wrote:
> ... it seems that for a prototype or DIY project a DC motor used as
> the controller for an inductive AC could work, somewhat better than
> marginally.
I'd say that's a fair assessment. It won't work great, but could be
acceptable.
If folks really want to experiment with this (and have done the
experimentation with a small AC motor as I suggested earlier), then here
is a hopeful strategy.
Get a DC series motor controller (Curtis, etc). It will be used as a
variable-voltage, current-limited, temperature-limited power supply.
Wire it up normally, but with a big series inductor in place of the
usual series motor.
Build a 3-phase bridge with six big IGBT modules. Put it on the same
heatsink as the Curtis controller. The Curtis controller's protection
circuits will tend to automatically limit the voltage, current, and
temperature of your IGBTs, so you will blow a lot fewer parts!
Use an ordinary 60 Hz, 3-phase, 4-pole 240 vac, AC induction motor of
about 5 HP. It will have four coils per phase (one per pole) -- rewire
the four coils per phase in parallel instead of in series to convert it
to 60 vac. Also wire the 3 sets of phase windings in wye configuration
(not delta).
Build a 6-step controller to drive the IGBTs. You can use whatever
technology you are most comfortable with -- anything from a rotary
switch spun by a motor, to discrete digital ICs, to a microcomputer. The
6-step waveforms are very simple; there are 6 square waves, one for each
IGBT, and each cycle has 6 steps. Sort of like this:
phase A, +IGBT ___---
phase A, -IGBT ---___
phase B, +IGBT __---_
phase B, -IGBT --___-
phase C, +IGBT _---__
phase C, -IGBT -___--
The six dashes represent the 6 steps in one cycle; - means on, _ means off.
As a first run, just make the frequency of these waveforms proportional
to the average output voltage of the Curtis controller (which is in turn
set by the potbox and load).
Finesse: twiddle the frequency to get the best efficiency for each
combination of load and potbox position. For example, the lighter the
load, the higher the frequency can be for any given voltage.
Voila -- A cheap AC motor controller! It will have about the same
efficiency as a series DC motor. But, you can improve that. It just
takes more time and money :-)
--
Ring the bells that still can ring
Forget the perfect offering
There is a crack in everything
That's how the light gets in -- Leonard Cohen
--
Lee A. Hart, 814 8th Ave N, Sartell MN 56377, leeahart_at_earthlink.net
------------------------------
Message: 13
Date: Wed, 5 Dec 2007 13:23:44 -0800
From: "Michael T Kadie" <[EMAIL PROTECTED]>
Subject: [EVDL] Our 2 cars were a hit at EVS-23
To: "'Electric Vehicle Discussion List'" <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="us-ascii"
AutoBlogGreen
(http://www.autobloggreen.com/2007/12/05/evs23-just-try-to-catch-these-bad-e
v-boys-all-electric-musta/
<blocked::http://www.autobloggreen.com/2007/12/05/evs23-just-try-to-catch-th
ese-bad-ev-boys-all-electric-musta/> )
Popular Mechanics
(http://www.popularmechanics.com/automotive/new_cars/4234814.html?page=5
<blocked::http://www.popularmechanics.com/automotive/new_cars/4234814.html?p
age=5> )
Edmunds (http://blogs.edmunds.com/.eea0f39
<blocked::http://blogs.edmunds.com/.eea0f39> )
And Look for us in EV World and MSN Auto soon
Michael Kadie
SSI-Racing.com
------------------------------
Message: 14
Date: Wed, 05 Dec 2007 15:35:26 -0600
From: "Andre' Blanchard" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] economy ac controller
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 12:43 PM 12/5/2007, you wrote:
>Well, looking at all the details written, it seems that for a prototype or
>DIY project a DC motor used as the controller for an inductive AC could
>work, somewhat better than marginally.
>
>It also adds up that the two motors would not /should not share a direct
>drive linkage. The small DC could first drive a larger commutator that
>maps to the AC motor directly. Phaze angles and slippage is then fairly
>automatic. Could also map a more complex commutator if improvements are needed.
>
>The acceleration profile of the dc should be similar to the AC under load.
>(load modification can be linked back though an automotive fan-clutch)
>Then next you can add noise suppression or waveform treatment, if you wish.
>
>At some point later (and when you have saved up a couple thousand) you rip
>out the DC motorized-controller and get a technically competent AC controller.
>
>For me it could be a cheep way to get an AC powered vehicle up and running
>for chasis/handling/Power testing.
>
>Then later I already have the right size motor installed (if not the best
>motor), so I only need the controller etc to complete final efficency and
>range testing.
>
>The hard part in this is providing the right controlling commutator.
>Something left over from and even bigger dc motor with 3 circuit? This all
>makes sense to be if you have the parts laying about unused.
>
>
>
>Arak Leatham - Web and Desktop Systems Developer
I was thinking about doing this a while back.
I figured it would be easiest and result in the smoothest operation if the
DC motor was attached to and rotated with the rotor of the AC motor. That
way the speed command you feed to the DC motor would be the slip frequency
and give a constant torque type of operation.
You would need a set of slip rings but they will be small compared to the
slip rings you will need to feed the mechanical inverter/commutator.
__________
Andre' B. Clear Lake, Wi.
------------------------------
Message: 15
Date: Wed, 5 Dec 2007 13:18:13 -0800 (PST)
From: [EMAIL PROTECTED]
Subject: Re: [EVDL] The "best" charger.
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain;charset=iso-8859-1
> I have used a Russco, and they are good chargers - but he spec'd a charger
> that has 120V and 240V input, which I don't believe Russco has. Am I
> wrong,
> Russ?
>
> Joseph H. Strubhar
>
> Web: www.gremcoinc.com
>
> E-mail: [EMAIL PROTECTED]
The current line of RUSSCO chargers operate off 120 VAC only and charge
packs of 72-156 volts. The present charger concept is not well suited for
revision to 120/240 VAC operation. For a dual voltage charger, I would
design and manufacture a completely new design using an active PFC boost
converter feeding a buck converter. This would allow 120/240 VAC
operation and have the capability to charge packs of 12 volts to 350
volts. No buck/boost transformer would be required. Packaging would be
no larger than present and a two-pole 240 volt Square D QO circuit
breaker/GFCI would be used. Perhaps next year.
Russ Kaufmann
RUSSCO Engineering
www.http://russcoev.com
The Other PFC Charger With Built In GFCI
------------------------------
Message: 16
Date: Wed, 05 Dec 2007 15:54:55 -0600
From: "Andre' Blanchard" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] economy ac controller
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 03:03 PM 12/5/2007, you wrote:
>Use an ordinary 60 Hz, 3-phase, 4-pole 240 vac, AC induction motor of
>about 5 HP. It will have four coils per phase (one per pole) -- rewire
>the four coils per phase in parallel instead of in series to convert it
>to 60 vac. Also wire the 3 sets of phase windings in wye configuration
>(not delta).
>
How about this motor.
http://www.surpluscenter.com/item.asp?UID=2007120515423248&item=10-2111&catname=electric
It is 6 pole and wound for 120 volts at 60 Hz. Wonder if it can stand
being spun up to 240 Hz or so.
__________
Andre' B. Clear Lake, Wi.
------------------------------
Message: 17
Date: Wed, 05 Dec 2007 23:04:47 +0100
From: Dan Frederiksen <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Our 2 cars were a hit at EVS-23
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
very nice. not my prefered car style but they'll serve well in busting
the stereotype that EVs are small ugly and weak.
that is if they actually run. do they or are they just mockups?
youtube doesn't seem to reveal any demonstrations
Michael T Kadie wrote:
> AutoBlogGreen
> (http://www.autobloggreen.com/2007/12/05/evs23-just-try-to-catch-these-bad-e
> v-boys-all-electric-musta/
> <blocked::http://www.autobloggreen.com/2007/12/05/evs23-just-try-to-catch-th
> ese-bad-ev-boys-all-electric-musta/> )
> Popular Mechanics
> (http://www.popularmechanics.com/automotive/new_cars/4234814.html?page=5
> <blocked::http://www.popularmechanics.com/automotive/new_cars/4234814.html?p
> age=5> )
> Edmunds (http://blogs.edmunds.com/.eea0f39
> <blocked::http://blogs.edmunds.com/.eea0f39> )
> And Look for us in EV World and MSN Auto soon
>
> Michael Kadie
> SSI-Racing.com
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
>
------------------------------
Message: 18
Date: Wed, 5 Dec 2007 16:10:24 -0600
From: "Morgan LaMoore" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] K2, yet another unresponsive battery company
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1
Yeah, I got a response.
I don't know if it's acceptable to share that sort of information, but
I will say that it was a pretty good discount. Nothing amazing like
50% off, but still significant. And this was for only 500 cells.
I just hope they keep dealing with individuals. I don't think I can
afford enough for a bike now, but in a few years, I'll want to get
some.
"Grilling them" about their cells is probably a bad business relations
strategy. Definitely ask questions and make sure you're getting a
quality product, but be polite about it. You should get a better
response that way.
-Morgan LaMoore
On Dec 5, 2007 3:21 PM, Dan Frederiksen <[EMAIL PROTECTED]> wrote:
> I sent a request for a quote on 2000 cells a few days ago. nothing yet.
>
> anyone else get a response?
------------------------------
Message: 19
Date: Wed, 05 Dec 2007 23:15:28 +0100
From: Dan Frederiksen <[EMAIL PROTECTED]>
Subject: Re: [EVDL] K2, yet another unresponsive battery company
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Morgan LaMoore wrote:
> I don't know if it's acceptable to share that sort of information, but
>
you can weigh any misguided sense of loyalty against the fate of the
planet. do spill the price
Dan
------------------------------
Message: 20
Date: Wed, 5 Dec 2007 16:49:23 -0600
From: "Ian Ward" <[EMAIL PROTECTED]>
Subject: [EVDL] International Battery Inc
To: ev@lists.sjsu.edu
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1
http://www.greencarcongress.com/2007/12/international-b.html
Apparently, Thundersky's US distributor just closed funding to open a US
factory. I respect and sympathize with the skepticism and negative feelings
about the company due to past dealings. However, I'm excited about the tests
Rich Rudman has conducted and I would be much more willing to buy from a
domestic company that I have legal recourse with or will be more compatible
with US business culture. If nothing else, I see this as additional
competition to drive down prices. Once that happens, lithium will be a much
more effective anti-depressant. ;-)
Cheers,
ian
------------------------------
Message: 21
Date: Wed, 5 Dec 2007 18:05:51 -0500
From: "Bob Rice" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] International Battery Inc
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Hi EVerybody;
Now That's cheery Christmas time news! Let's hope they can get their shit
together? WHERE will the factory be?IF they can berth a few million more
like Rich has?
Seeya
Bob
----- Original Message -----
From: "Ian Ward" <[EMAIL PROTECTED]>
To: <ev@lists.sjsu.edu>
Sent: Wednesday, December 05, 2007 5:49 PM
Subject: [EVDL] International Battery Inc
>
> Apparently, Thundersky's US distributor just closed funding to open a US
> factory. I respect and sympathize with the skepticism and negative
> feelings
> about the company due to past dealings. However, I'm excited about the
> tests
> Rich Rudman has conducted and I would be much more willing to buy from a
> domestic company that I have legal recourse with or will be more
> compatible
> with US business culture. If nothing else, I see this as additional
> competition to drive down prices. Once that happens, lithium will be a
> much
> more effective anti-depressant. ;-)
>
> Cheers,
> ian
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
>
> --
> Internal Virus Database is out-of-date.
> Checked by AVG Free Edition.
> Version: 7.5.488 / Virus Database: 269.13.28/1023 - Release Date:
> 9/22/2007 1:27 PM
>
>
------------------------------
Message: 22
Date: Wed, 5 Dec 2007 15:10:00 -0800
From: "Peter Oliver" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] K2, yet another unresponsive battery company
To: "'Electric Vehicle Discussion List'" <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="us-ascii"
Pretty much the entire sales staff was in Anaheim for EVS23. They were
aggressive in their pricing to me in person, we will see when the quote
comes in writing.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Dan Frederiksen
Sent: Wednesday, December 05, 2007 2:15 PM
To: Electric Vehicle Discussion List
Subject: Re: [EVDL] K2, yet another unresponsive battery company
Morgan LaMoore wrote:
> I don't know if it's acceptable to share that sort of information, but
>
you can weigh any misguided sense of loyalty against the fate of the
planet. do spill the price
Dan
_______________________________________________
For subscription options, see
http://lists.sjsu.edu/mailman/listinfo/ev
------------------------------
Message: 23
Date: Wed, 05 Dec 2007 15:15:50 -0800
From: [EMAIL PROTECTED]
Subject: Re: [EVDL] EVS-23 Photos
To: ev@lists.sjsu.edu
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes";
format="flowed"
<<< I went to the EVS23 show in Anaheim this weekend. It was very
interesting; the turnout was very good according to people who have
gone to previous EVS shows.
Here are some photos I snapped:
http://www.electric-lemon.com/?q=node/280 >>>
Thanks for the pics, Peter! I went to EVS12, also in Anaheim, and
haven't been back, but I see the players have changed -- no EV1,
WaveDriver, or German Postal Service with zinc-air powered trucks!
------------------------------
Message: 24
Date: Wed, 05 Dec 2007 18:20:00 -0500
From: Chuck Homic <[EMAIL PROTECTED]>
Subject: Re: [EVDL] International Battery Inc
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Bob Rice wrote:
> Now That's cheery Christmas time news! Let's hope they can get their shit
> together? WHERE will the factory be?IF they can berth a few million more
> like Rich has?
>
According to the article, which was linked in the original email:
"This funding will allow the Company to complete its large-format
lithium-ion manufacturing facility in Allentown, Pennsylvania"
------------------------------
Message: 25
Date: Thu, 06 Dec 2007 09:24:22 +1000
From: Dominant <[EMAIL PROTECTED]>
Subject: Re: [EVDL] The "best" charger.
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 11:36 PM 4/12/2007, you wrote:
>Is there a charger consider the "BEST" for a string of thirteen x 12 Volts,
>100 AH AGMs?
>
>Preferably something that could work off of 110 VAC when on the road and 220
>VAC for a faster charge when at home.
Aside from the Rusco and PFC chagers already listed, there's the
BRUSA charger series from Metric Mind (
http://www.metricmind.com/charger.htm ). They'll accept any input
from 90VDC to 240VDC, are flash upgradeable, suit any battery type,
stackable, pump out as much as 75A (per unit), and one model is
water-cooled. They'll probably outlast any battery pack you use.
However, they're frighteningly expensive. Despite the high cost,
they're currently at the top of my list as far as chargers goes.
------------------------------
Message: 26
Date: Wed, 5 Dec 2007 15:36:44 -0800 (PST)
From: Ian Ward <[EMAIL PROTECTED]>
Subject: Re: [EVDL] EVS-23 Photos
To: ev@lists.sjsu.edu
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=us-ascii
Best report on the show, yet! Thanks, Peter!
- ian
--
View this message in context:
http://www.nabble.com/EVS-23-Photos-tf4948148s25542.html#a14183243
Sent from the Electric Vehicle Discussion List mailing list archive at
Nabble.com.
------------------------------
Message: 27
Date: Thu, 06 Dec 2007 09:06:22 +1000
From: Dominant <[EMAIL PROTECTED]>
Subject: Re: [EVDL] 5w 12v -25 pound motor solar power( Tommey Reed)
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 05:27 AM 6/12/2007, Tommy Reed wrote:
>This motor has higher efficient the motor today...
>http://www.youtube.com/watch?v=bloOBX3Qw8s
Earlier on, David Roden wrote:
>If you have an EV or are interested in acquiring or building one, and wish to
>discuss EVs, then the EVDL is for you.? However, please find another place to
>post your experimental motor reports.? Do not continue to post them here.
>
>Thanks.
>
>David Roden - Akron, Ohio, USA
>EVDL Administrator
I like technology. I like lateral thinking. I like tinkering. I
don't like nonsense.
------------------------------
Message: 28
Date: Wed, 5 Dec 2007 15:53:11 -0800 (PST)
From: EV Pete <[EMAIL PROTECTED]>
Subject: [EVDL] PHET Batteries
To: ev@lists.sjsu.edu
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=us-ascii
I believe the single most exciting item I saw at EVS 23 was the PHET battery
solution. It may be just that I have never been to the big city before, if
you know what I mean.
They have a product called the PHET Prismatic Battery which is a cluster of
between 20 and 80 of their 3.2 v batteries connected in parallel in a
beautiful plastic case. EACH CELL is fused and each case is fused and BMS
tracks down to the individual cell level. If a single cell fails in a 60
battery module it is no real big deal and if it starts to go BIG the fuse
blows before it can take any friends along.
Please check out www.phet.com.tw
I am curious about how much the fusing impacts performance or other
concerns.
Other thoughts be the seasoned Veterans?
--
View this message in context:
http://www.nabble.com/PHET-Batteries-tf4953043s25542.html#a14183246
Sent from the Electric Vehicle Discussion List mailing list archive at
Nabble.com.
------------------------------
Message: 29
Date: Wed, 5 Dec 2007 15:31:22 -0900
From: tehben <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Brusa NLG5 charging profile for Deka 8G24M
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1
Thanks for the recommendation David, but I did confuse myself on one point.
I made up a profile for the charger and it is only charging them up to
13.3v per bat.
My charger can only put out 1kw at mains=120v and I have it plugged
into 110 right now, so during the initial bulk charging phase
(1kw/385v=2.6amps) I was measuring very close to that.
So my question is about this:
> That voltage condition should cause a change to the next stage. In that
> stage, maintain constant voltage at the above compensated voltage per module
> until current falls to 1.5 amps, then change to the next stage
Is that 1.5 amp stage change if you were charging one 12v battery?
(15v x 2.5amps = 37.5watts)
I made the profile without thinking about it and just now did the
calculations and It seems like if I cut off the charger after the
current drops below 1.5amps it would be stopping while there is still
around 0.5kw going in.
So what current should it drop to before shutting off with my pack of
26, 12volt Gel's.... 100 milliamps? (37.5/385 = 0.097)
...am I anywhere close?
Thanks,
--
Tehben
'90 Toyota 4x4 Pickup
'hElix EV'
Website: www.helixev.com
evalbum: http://www.austinev.org/evalbum/1225
------------------------------
Message: 30
Date: Wed, 05 Dec 2007 18:06:42 -0600
From: "Mark Thomasson" <[EMAIL PROTECTED]>
Subject: [EVDL] ADC motor for sale
To: <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
reply-type=response
FYI, 6.7" series motor for sale on Craig's list in Houston. Mark
http://houston.craigslist.org/pts/494952005.html
------------------------------
Message: 31
Date: Wed, 5 Dec 2007 16:30:44 -0800
From: "Tom Shay" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Alternators: 1 on each wheel + 3 in the front
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Connecting an alternator to each wheel and three more up front is
really doing things the hard way. A single larger alternator can be
attached to the motor that propels the car or to a seperate motor.
When I was a teenager and before my head became crammed with
ideas about electrical engineering, physics and thermodynamics,
I "invented" an electric car that needed no batteries. It used a two-
shaft motor. One shaft was connected to the transmission to drive
the car. The other shaft drove a generator which produced electricity
to run the motor. A hand crank or small starter motor could spin the
motor and generator to get the car started.
Even as a teenager I had doubts about this system. Surely somebody
had already invented this scheme and tried it. It probably didn't work
or else electric cars without batteries would be widely used.
----- Original Message -----
From: "Steve Kobb" <[EMAIL PROTECTED]>
To: <ev@lists.sjsu.edu>
Sent: Wednesday, December 05, 2007 12:03 PM
Subject: [EVDL] Alternators: 1 on each wheel + 3 in the front
>
> I was talking with a mechanic today about EVs. He told me that he'd seen
> an
> interesting one lately.
>
> The story got my curiosity, so I thought I'd share it with the list to see
> what others might have to say about it.
>
> Here goes:
>
> According to my friend, a Vietnamese mechanic here in Houston has
> converted
> an older, non-Bug VW to electric power. I can't remember how many
> batteries
> were used, but there weren't many.
>
> The surprising thing, though, is how he kept these things powered. He
> built
> a bracket over each wheel well, and to this bracket, he attached an
> alternator. So -- 4 wheels with 4 alternators... and all this stuff is
> hanging off the OUTSIDE of the car.
>
> Then, on the hub of each wheel, he's got a pulley... and, of course,
> there's
> a belt turning each alternator.
>
> Last, but not least, he's got 2 or 3 alternators on the front of the car,
> and each of them are driven by fans.
>
> Again, according to my mechanic friend, the owner of this EV is able to
> drive around 6 hours on his rather modest battery pack... and he's taken
> the
> car up to 110 mph.
>
> Now, does this seem plausible to you? Have any laws of physics been broken
> here?
>
> Your comments are welcome.
>
> Steve Kobb
------------------------------
Message: 32
Date: Wed, 5 Dec 2007 18:48:00 -0800
From: "Gail Lucas" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] The "best" charger.
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Russ,
Did you mean http://www.russcoev.com/ ?
Gail
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Sent: Wednesday, December 05, 2007 1:18 PM
Subject: Re: [EVDL] The "best" charger.
> Russ Kaufmann
>
> RUSSCO Engineering
>
> www.http://russcoev.com
>
> The Other PFC Charger With Built In GFCI
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
------------------------------
Message: 33
Date: Wed, 5 Dec 2007 21:38:55 -0500
From: "Clif Martin" <[EMAIL PROTECTED]>
Subject: [EVDL] Batteries for Jet 007
To: <[EMAIL PROTECTED]>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="iso-8859-1"
I am in the process of working on my jet 007 to get it up and running now
that I finally have the title for it. I have been reading the list for almost
2 years now. The car originally had 20 6 volt golf cart batteries. It had
none when I bought it. Range not acceleration is my primary concern. If I am
correct in what I've seen on this list, flooded lead acid 6 volt batteries will
give the best range and will get along best with my old Lester charger. They
also don't require BMS if I do a balance charge every 5 to 10 days. They are
also the cheapest and the most forgiving type of battery. I should stay away
from Sam's Club, etc. and should go with Trojan or US Battery. Is my
interpretation right on all this?
I just talked to a person at Harris Battery. He recommends their Discover
AGM 6 volt batteries. He said they have heavier plates than optimas and give
the same range as Trojans flooded 6 volt batteries. He said acceleration will
be a little slower than optimas. He says they can be discharged 100% without
hurting them. However it will shorten their life. He said they will last 1100
cycles if discharged to only 50% and about half that if discharged 100%. Am I
right in saying that this doesn't agree with the experience of people driving
evs on this list? I hope to get some traded in batteries to test the car out
before I spend the money on new batteries. What are the preferred post types?
I also have to make battery cables. Should I run 2/0 cable between all the
batteries? Any suggestions are welcome.
Thanks,
Clif
------------------------------
Message: 34
Date: Wed, 05 Dec 2007 19:02:37 -0800
From: Jeff Shanab <[EMAIL PROTECTED]>
Subject: Re: [EVDL] "still need a good affordable motor" AC
To: ev@lists.sjsu.edu
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1
We have community members making chargers, controllers, balancers, and
kick but Dc motors. One of us needs to take on the charge for a good EV
motor.
If I had some money I would love to be the one, I have done a lot of
research and found that the cost of materials isn't that bad.
My thought was to wind them by hand myself getting optimum packing,
until I can develop a more automatic way. Then to take the motors to the
local motor shop to have the windings vacuum impregnated and dynoed.
There were some roadblocks
The biggest was the laminations. Laminations of standard
commodity design and sizes are available but only in low quality ferrite.
I was unable to find a supplier that would make these laminations
in ceramic coated low-loss silicon or cobolt steel. All the manufactures
that make low-loss laminations, have done the detailed magnetic design
and seem to make the motors.
The second roadblock was how to make a rotor that can handle
10,000 rpm, there are two techniques. Casting and Swedging. Both require
some major equipment.
Perhaps the answer is to make a 3 phase switched reluctance motor
and provide the added external inductance or what ever to the tri-zilla
to drive that.
------------------------------
Message: 35
Date: Wed, 05 Dec 2007 19:17:59 -0800
From: Jeff Shanab <[EMAIL PROTECTED]>
Subject: Re: [EVDL] economy ac controller
To: ev@lists.sjsu.edu
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1
I think traditional 6 step is adequate for driving AC induction motors.
If we are winding the motor ourself we can wind them to prefer,
efficiency wise, this "squarish wave " pattern.
I think the switching losses can be less in the 6 step or trapezoidal
than the sinusoidal at the expense of low rpm smoothness.
PS. syncronous means no slip, ie not an induction motor. There must be a
field for this, permanent magnets or slip-ring driven coils. The prius
uses magnets(the most compact)
The insight and accord use salient pole syncronous PM motors, This means
the coils don't overlap in anyway. the BEMF waveform, which determines
how they should be driven is non-overlaping squarewave. This is pure
trapizoidial drive.
I think these are easier motors to start with. I have wanted to stack up
4 of them in place of the whole motor in an insight.
------------------------------
Message: 36
Date: Wed, 5 Dec 2007 20:20:57 -0700 (GMT-07:00)
From: "Dave (Battery Boy) Hawkins" <[EMAIL PROTECTED]>
Subject: [EVDL] Where's KillaCycle? and EVS23 Radio show...
To: ev@lists.sjsu.edu
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset=UTF-8
All,
John Bryan and I are heading back from EVS23 to Colorado, but have stopped in
Phoenix, AZ, to visit relatives, and to see if Dennis Berube would pay use for
one-half hour in the back of the van with the bike!
Also, while I was in Anaheim, CA, ESPN Radio 800 RPM TODAY out of San Diego did
a live radio broadcast at:
http://www.totallymotorsports.com/podcast/12-2-07/
Later,
BB
------------------------------
Message: 37
Date: Wed, 5 Dec 2007 23:20:06 -0500
From: "storm connors" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Brusa NLG5 charging profile for Deka 8G24M
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1
What is the problem with "floating forever"? Isn't this what UPS
systems do? I'm asking because my dc/dc pretty much does this to my
12v battery.
> 1. Perform a short equalization at 1.5 amps constant current, voltage
> limited to 14.3 (14.1) v/m, TC as above. This could be perhaps 1 - 2 hours.
> I wouldn't do this every cycle, however.
>
> 2. Go to a constant voltage float of 13.8 volts per module. I don't
> recommend floating forever.
>
> 3. Shut off the charger.
>
> Set a watchdog (stop with error indication) for exceeding 100-125ah of
> charge and/or module temperature above 50 deg C.
>
> Hope this helps.
>
> David Roden - Akron, Ohio, USA
> EVDL Administrator
>
> = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
> EVDL Information: http://www.evdl.org/help/
> = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
> Note: mail sent to "evpost" or "etpost" addresses will not
> reach me. To send a private message, please obtain my
> email address from the webpage http://www.evdl.org/help/ .
> = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
>
>
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
--
http://www.austinev.org/evalbum/1059
http://stormselectric.blogspot.com/
Storm
------------------------------
Message: 38
Date: Wed, 5 Dec 2007 22:23:58 -0600
From: "Ryan Stotts" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] "still need a good affordable motor" AC
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset=UTF-8
So essentially; all the existing off the shelf AC motors are useless
in a EV application?
http://www.lincolnmotors.com/products/
http://www.reliance.com/prodserv/motgen/motgenhome.htm
------------------------------
Message: 39
Date: Wed, 5 Dec 2007 23:25:29 -0500
From: "storm connors" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] International Battery Inc
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1
Hey Bob. We can save shipping cost and just pick them up!
On Dec 5, 2007 6:20 PM, Chuck Homic <[EMAIL PROTECTED]> wrote:
> Bob Rice wrote:
> > Now That's cheery Christmas time news! Let's hope they can get their shit
> > together? WHERE will the factory be?IF they can berth a few million more
> > like Rich has?
> >
> According to the article, which was linked in the original email:
>
> "This funding will allow the Company to complete its large-format
> lithium-ion manufacturing facility in Allentown, Pennsylvania"
>
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
--
http://www.austinev.org/evalbum/1059
http://stormselectric.blogspot.com/
Storm
------------------------------
Message: 40
Date: Wed, 5 Dec 2007 20:26:36 -0800 (PST)
From: Joe Fields <[EMAIL PROTECTED]>
Subject: Re: [EVDL] economy ac controller
To: ev@lists.sjsu.edu
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=us-ascii
Whoops, Morgan LaMoore's comment was completely right
and my response was not. I wasn't thinking of induction motors,
which blinded me to the presence of the word INDUCTION in
his note.
Sorry Morgan, you are right, I was wrong.
So to make the system I'm thinking of work we either have
to have a small dc motor that drives the inverter or
a synchronous motor. I'm wondering how tough it would be
to replace the rotor on a big induction motor with a rig full of
those neodymium super magnets...
Cheers,
Joe
Joe Fields wrote:
>
>
>
> Morgan LaMoore wrote:
>>
>> The problem is that for an AC induction motor, you don't want AC at
>> the mechanical rotation frequency, you want a slightly different
>> frequency.
>>
>
> Not quite. As Lee Hart pointed out this _is_ how DC motors
> work. What you want is essentially a phase angle difference between
> the rotating magnetic field set up by the motor's field windings and the
> position of the rotor. Most motors are controlled the way you you're
> suggesting so that, integrated over time, they have this phase
> difference, but this is actually sub-optimal -- there's slippage.
> If it were easy to get the controller matched to the motor's
> frequency but slightly advance in phase, I think most controllers
> would do that -- think about brushless DC.
>
>
>
>> Also, for EV use, you probably want Flux Vector Control to
>> give you proper torque control, and it would take a genius to figure
>> that out mechanically. (If you want info on Flux Vector Control, check
>> out Microchip application note AN908; it's a good, if somewhat
>> simplified, reference.)
>>
>> -Morgan LaMoore
>>
>
> Thanks for the reference, I'll check it out.
>
> Best,
> Joe
>
>
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------------------------------
Message: 41
Date: Wed, 5 Dec 2007 22:29:16 -0600
From: "Ryan Stotts" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] economy ac controller
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset=UTF-8
Can these be scaled up or modified?
http://curtisinst.com/index.cfm?fuseaction=cProducts.dspProductCategory&catID=8
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