EV Digest 6529
Topics covered in this issue include:
1) Re: Hybrid Car Crash - Tacoma WA - 3/6/07
by GWMobile <[EMAIL PROTECTED]>
2) Re: Hybrid Car Crash - Tacoma WA - 3/6/07
by "Erich Hunter" <[EMAIL PROTECTED]>
3) Re: [EV] Re: Regenerative suspension, more stuff
by Eduardo Kaftanski <[EMAIL PROTECTED]>
4) Advanced DC setting
by "[EMAIL PROTECTED]" <[EMAIL PROTECTED]>
5) Re: Hybrid Car Crash - Tacoma WA - 3/6/07
by "Richard Acuti" <[EMAIL PROTECTED]>
6) Re: Hybrid Car Crash - Tacoma WA - 3/6/07
by KARSTEN GOPINATH <[EMAIL PROTECTED]>
7) Re: Advanced DC setting
by Jim Husted <[EMAIL PROTECTED]>
8) Let's stop, was: Hybrid Car Crash - Tacoma WA - 3/6/07
by Cor van de Water <[EMAIL PROTECTED]>
9) Magnetics theory help (was Re: Motor mods Peter)
by "Peter Gabrielsson" <[EMAIL PROTECTED]>
10) Re: Magnetics theory help (was Re: Motor mods Peter)
by Lee Hart <[EMAIL PROTECTED]>
11) Re: Magnetics theory help (was Re: Motor mods Peter)
by "Peter Gabrielsson" <[EMAIL PROTECTED]>
12) Re: Voltmeter
by Lawrence Harris <[EMAIL PROTECTED]>
13) Hilux diff in EV conversion
by "Ev Performance (Robert Chew)" <[EMAIL PROTECTED]>
14) Re: Motor mods
by "Paul G." <[EMAIL PROTECTED]>
15) quote for Valence Li in standard packages
by john fisher <[EMAIL PROTECTED]>
16) Re: How to get Solectria AC55 motor to fit transmission, is it possible?
by Tony Hwang <[EMAIL PROTECTED]>
17) Re: Heatsinking a Curtis - necessary for golf cart versions?
by "Darin - at - metrompg.com" <[EMAIL PROTECTED]>
18) Re: Motor mods Peter Gabrielsson
by Jim Husted <[EMAIL PROTECTED]>
19) RE: Heatsinking a Curtis - necessary for golf cart versions?
by Cor van de Water <[EMAIL PROTECTED]>
20) Re: Motor mods
by James Massey <[EMAIL PROTECTED]>
21) Re: case cooling (was RE: Motor blower)
by Matthew Milliron <[EMAIL PROTECTED]>
22) RE: SCCA Problems with Electrics
by "Tim Gamber" <[EMAIL PROTECTED]>
23) RE: case cooling (was RE: Motor blower)
by Cor van de Water <[EMAIL PROTECTED]>
--- Begin Message ---
You must actually wear a hat with the website on the front while doing
an interview to force video to cover it.
Also eyeglass frames with a website works.
Otherwise they will try to crop it out of the picture.
That's why cspan conferences now have the webiste right near the top of
the podium because the camermen keep trying to tighting the shot to
exclude any other media links.
On Thu, 8 Mar 2007 10:45 am, Dewey, Jody R ATC COMNAVAIRLANT, N422G5G
wrote:
Does the news actually know what caused the crash? What do
investigators say? Sounds like a computer failure of drive by wire
technology - not EV technology.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Steven Lough
Sent: Thursday, March 08, 2007 13:18
To: Electric Vehicle Discussion List RCVR
Subject: Hybrid Car Crash - Tacoma WA - 3/6/07
As always ....The " PRESS" will fly in a helicopter, a crew, cameras,
etc. to cover a shooting, a robbery, a Car Accident..
any thing negative... But try and get them to cover an Electric Car
that CAN, a young person triumphing over some adversity, doing some
civic GOOD, building an EV, and the guy will tell ya..
"Good News Doesn't sell News Papers"
Well, this CRASH is not good news either.
KING TV NEWS:
http://www.king5.com/localnews/stories/NW_030607WABhybridcaraccidentJM.2
646476e.html
And all this just on the heels of Sherry Boschert's visit to Seattle,
( My EAA counterpart from San Francisco) and her Book Tour for her
new
book:
"Plug-In Hybrids: The Cars That Will Recharge America"
She did pull off a wonderful 1 hour interview on the local PBS station
(
KUOW) You can go to their audio archives for 3/6/07...
the Weekday Show, and listen to it...
(short cut) http://www.kuow.org/defaultProgram.asp?ID=12364
But the Media being what the Media IS... Sherry only got to mention the
Seattle EV Association once, and on their web site where they list
Additional WEB information on the Subject of the interview..
no mention of SEVA or any of the PHEV, and EV work we have done
over the last 26 years...
That hurt a little...
But I know any of us involved in Self Promotion of EV's and PHEV's or
Alt Fuel in general have run into this...
So the Good Fight Goes ON.
--
Steven S. Lough, Pres.
Seattle EV Association
6021 32nd Ave. N.E.
Seattle, WA 98115-7230
Day: 206 850-8535
Eve: 206 524-1351
e-mail: [EMAIL PROTECTED]
web: http://www.seattleeva.org
www.GlobalBoiling.com for daily images about hurricanes, globalwarming
and the melting poles.
www.ElectricQuakes.com daily solar and earthquake images.
--- End Message ---
--- Begin Message ---
Just for the aesthetic of having a big red "DO NOT PUSH" emergency button.
On 3/8/07, Peri Hartman <[EMAIL PROTECTED]> wrote:
Regardless of the cause, when I build (eventually) my ev, it's definitely
going to have a red push-in panic disconnect button.
Peri Hartman
----- Original Message -----
From: "Shawn Waggoner, FLEAA" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: 08 March, 2007 12:14 PM
Subject: RE: Hybrid Car Crash - Tacoma WA - 3/6/07
> In the article and on the video they mention that the guy had to get
> multiple dealers to check the car to make sure it was safe...why? Was it
> previously wrecked? I would believe that the brakes failed before I
> believe
> that computer or electronic failure caused the car to speed away. I
wonder
> if the brake system had a failure and that was why there was a problem
> with
> the car.
>
> I agree with you Steve, it is very frustrating to hear this ignorance
make
> the news. Keep up the good work though!
>
> Shawn Waggoner
> Florida EAA
> 561-543-9223
> www.floridaeaa.org
>
>
> -----Original Message-----
> From: Dewey, Jody R ATC COMNAVAIRLANT, N422G5G
> [mailto:[EMAIL PROTECTED]
> Sent: Thursday, March 08, 2007 1:35 PM
> To: [email protected]
> Subject: RE: Hybrid Car Crash - Tacoma WA - 3/6/07
>
> Does the news actually know what caused the crash? What do
> investigators say? Sounds like a computer failure of drive by wire
> technology - not EV technology.
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
> Behalf Of Steven Lough
> Sent: Thursday, March 08, 2007 13:18
> To: Electric Vehicle Discussion List RCVR
> Subject: Hybrid Car Crash - Tacoma WA - 3/6/07
>
> As always ....The " PRESS" will fly in a helicopter, a crew, cameras,
> etc. to cover a shooting, a robbery, a Car Accident..
> any thing negative... But try and get them to cover an Electric Car
> that CAN, a young person triumphing over some adversity, doing some
> civic GOOD, building an EV, and the guy will tell ya..
> "Good News Doesn't sell News Papers"
>
> Well, this CRASH is not good news either.
> KING TV NEWS:
> http://www.king5.com/localnews/stories/NW_030607WABhybridcaraccidentJM.2
> 646476e.html
>
> And all this just on the heels of Sherry Boschert's visit to Seattle,
> ( My EAA counterpart from San Francisco) and her Book Tour for her new
> book:
> "Plug-In Hybrids: The Cars That Will Recharge America"
>
> She did pull off a wonderful 1 hour interview on the local PBS station (
> KUOW) You can go to their audio archives for 3/6/07...
> the Weekday Show, and listen to it...
> (short cut) http://www.kuow.org/defaultProgram.asp?ID=12364
>
> But the Media being what the Media IS... Sherry only got to mention the
> Seattle EV Association once, and on their web site where they list
> Additional WEB information on the Subject of the interview..
> no mention of SEVA or any of the PHEV, and EV work we have done
> over the last 26 years...
> That hurt a little...
> But I know any of us involved in Self Promotion of EV's and PHEV's or
> Alt Fuel in general have run into this...
>
> So the Good Fight Goes ON.
>
> --
> Steven S. Lough, Pres.
> Seattle EV Association
> 6021 32nd Ave. N.E.
> Seattle, WA 98115-7230
> Day: 206 850-8535
> Eve: 206 524-1351
> e-mail: [EMAIL PROTECTED]
> web: http://www.seattleeva.org
>
>
--- End Message ---
--- Begin Message ---
>
> Well the Chevy Nova was a joke in Spanish-speaking countries, since "no
> va" would be "doesn't go".
> If I remember my Spanish, an implied subject is normal, so this is even
> a complete sentence- "(it) doesn't go (run/move)".
It does mean that... but in spanish its not normal to really care
about what a name means...
The Chevy Nova was a very good seller in its time in this country
at least...
THey one that had to get its name changed was the Mitsubishy Pajero in
Chile. :)
--
Eduardo K. | Darwin pone las reglas.
http://www.carfun.cl | Murphy, la oportunidad.
http://ev.nn.cl |
| Yo.
--- End Message ---
--- Begin Message ---
Hey all:
How can I confirm that my 9 inch advanced DC motor is set in the advanced
setting. I seem to remember a number of years ago that this motor was on a
regen truck and needed to be removed from the advanced setting. I don't
remember what that setting is now and would like to confirm that it is set up
right before I continue with this project.
Jim Donovan
Westwood, KS
________________________________________________________________________
Interested in getting caught up on today's news?
Click here to checkout USA TODAY Headlines.
http://track.juno.com/s/lc?s=198954&u=http://www.usatoday.com/news/front.htm?csp=24
--- End Message ---
--- Begin Message ---
What a stupid article. In over 100 years of use, an ICE powered car has
never crashed into a building due to a stuck accelerator? The 12v electrical
system has never sparked a gasoline fire after an accident?
I can see some upset soccer mommy in front of a Congressional committee now:
"Hybrids and electric-drive cars are a menace to our highways and must be
stopped!"
You know, although the article quoted the guy saying he applied the brakes,
never once did he say "I shut off the ignition switch". I realize he was
taken by surprise and probably only had seconds to act but that probably
would have prevented the whole thing. Just as it would for any other ICE
vehicle.
Rich A.
Message-ID: <[EMAIL PROTECTED]>
Date: Thu, 08 Mar 2007 10:17:31 -0800
From: Steven Lough <[EMAIL PROTECTED]>
MIME-Version: 1.0
To: Electric Vehicle Discussion List RCVR <[email protected]>
Subject: Hybrid Car Crash - Tacoma WA - 3/6/07
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
As always ....The " PRESS" will fly in a helicopter, a crew, cameras,
etc. to cover a shooting, a robbery, a Car Accident..
any thing negative... But try and get them to cover an Electric Car
that CAN, a young person triumphing over some adversity, doing some
civic GOOD, building an EV, and the guy will tell ya..
"Good News Doesn't sell News Papers"
Well, this CRASH is not good news either.
KING TV NEWS:
http://www.king5.com/localnews/stories/NW_030607WABhybridcaraccidentJM.2646476e.html
And all this just on the heels of Sherry Boschert's visit to Seattle,
( My EAA counterpart from San Francisco) and her Book Tour for her new
book:
"Plug-In Hybrids: The Cars That Will Recharge America"
She did pull off a wonderful 1 hour interview on the local PBS station
( KUOW) You can go to their audio archives for 3/6/07...
the Weekday Show, and listen to it...
(short cut) http://www.kuow.org/defaultProgram.asp?ID=12364
But the Media being what the Media IS... Sherry only got to mention the
Seattle EV Association once, and on their web site where they list
Additional WEB information on the Subject of the interview..
no mention of SEVA or any of the PHEV, and EV work we have done
over the last 26 years...
That hurt a little...
But I know any of us involved in Self Promotion of EV's and PHEV's or
Alt Fuel in general have run into this...
So the Good Fight Goes ON.
_________________________________________________________________
The average US Credit Score is 675. The cost to see yours: $0 by Experian.
http://www.freecreditreport.com/pm/default.aspx?sc=660600&bcd=EMAILFOOTERAVERAGE
--- End Message ---
--- Begin Message ---
This happens all the time with ICE vehicles. Hitting the brakes should
have stopped the car even if that little Prius engine was going at full
throttle. He probably hit the gas instead of the brakes.
On Mar 8, 2007, at 2:16 PM, Richard Acuti wrote:
What a stupid article. In over 100 years of use, an ICE powered car
has never crashed into a building due to a stuck accelerator? The 12v
electrical system has never sparked a gasoline fire after an accident?
I can see some upset soccer mommy in front of a Congressional
committee now: "Hybrids and electric-drive cars are a menace to our
highways and must be stopped!"
You know, although the article quoted the guy saying he applied the
brakes, never once did he say "I shut off the ignition switch". I
realize he was taken by surprise and probably only had seconds to act
but that probably would have prevented the whole thing. Just as it
would for any other ICE vehicle.
Rich A.
Message-ID: <[EMAIL PROTECTED]>
Date: Thu, 08 Mar 2007 10:17:31 -0800
From: Steven Lough <[EMAIL PROTECTED]>
MIME-Version: 1.0
To: Electric Vehicle Discussion List RCVR <[email protected]>
Subject: Hybrid Car Crash - Tacoma WA - 3/6/07
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit
As always ....The " PRESS" will fly in a helicopter, a crew, cameras,
etc. to cover a shooting, a robbery, a Car Accident..
any thing negative... But try and get them to cover an Electric Car
that CAN, a young person triumphing over some adversity, doing some
civic GOOD, building an EV, and the guy will tell ya..
"Good News Doesn't sell News Papers"
Well, this CRASH is not good news either.
KING TV NEWS:
http://www.king5.com/localnews/stories/
NW_030607WABhybridcaraccidentJM.2646476e.html
And all this just on the heels of Sherry Boschert's visit to Seattle,
( My EAA counterpart from San Francisco) and her Book Tour for her new
book:
"Plug-In Hybrids: The Cars That Will Recharge America"
She did pull off a wonderful 1 hour interview on the local PBS station
( KUOW) You can go to their audio archives for 3/6/07...
the Weekday Show, and listen to it...
(short cut) http://www.kuow.org/defaultProgram.asp?ID=12364
But the Media being what the Media IS... Sherry only got to mention the
Seattle EV Association once, and on their web site where they list
Additional WEB information on the Subject of the interview..
no mention of SEVA or any of the PHEV, and EV work we have done
over the last 26 years...
That hurt a little...
But I know any of us involved in Self Promotion of EV's and PHEV's or
Alt Fuel in general have run into this...
So the Good Fight Goes ON.
_________________________________________________________________
The average US Credit Score is 675. The cost to see yours: $0 by
Experian.
http://www.freecreditreport.com/pm/default.aspx?
sc=660600&bcd=EMAILFOOTERAVERAGE
--- End Message ---
--- Begin Message ---
Hey Jim
If you take a look at the three (two on the 8's) pole
shoe mounting bolts located in the middle of the motor
housing. Look down those bolt heads and line them up
as you look down the barrel of the housing toward the
brush end. If those bolt heads line up with where the
brushes are then it's nuetral.
If they are offset and not in-line with the pole shoe
bolts it's either advanced or retarded. There are
usually 3 sets of holes you can mount into and the
middle set is nuetral.
To advance rotate the comm plate in the reverse
direction that the motor spins. Looking from the
drive end you would rotate the comm plate CWDE to get
a CCWDE advancement.
Hope this helps, if in doubt send me an offlist pic
and I'll have a look. Best to get me a full motor
view and make sure the brush cover band is removed or
than I can see where the brushes are 8^)
Cya
Jim Husted
Hi-Torque Electric
--- "[EMAIL PROTECTED]"
<[EMAIL PROTECTED]> wrote:
> Hey all:
> How can I confirm that my 9 inch advanced DC motor
> is set in the advanced setting. I seem to remember
> a number of years ago that this motor was on a regen
> truck and needed to be removed from the advanced
> setting. I don't remember what that setting is now
> and would like to confirm that it is set up right
> before I continue with this project.
> Jim Donovan
> Westwood, KS
>
>
>
>
>
________________________________________________________________________
> Interested in getting caught up on today's news?
> Click here to checkout USA TODAY Headlines.
>
http://track.juno.com/s/lc?s=198954&u=http://www.usatoday.com/news/front.htm?csp=24
>
>
____________________________________________________________________________________
Don't pick lemons.
See all the new 2007 cars at Yahoo! Autos.
http://autos.yahoo.com/new_cars.html
--- End Message ---
--- Begin Message ---
This is typical a garbage in - garbage out process.
So, let's stop wasting our time and energy on this list.
If you want to contact the newspaper about their omissions
and errors in reporting, that might make a difference, or they
conclude: when writing provocative like we did, people notice.
Sometimes being noticed is more important than being correct,
especially if ad income depends on it.
Let's drop the thread.
Cor van de Water
Systems Architect
Proxim Wireless Corporation http://www.proxim.com
Email: [EMAIL PROTECTED] Private: http://www.cvandewater.com
Skype: cor_van_de_water IM: [EMAIL PROTECTED]
Tel: +1 408 542 5225 VoIP: +31 20 3987567 FWD# 25925
Fax: +1 408 731 3675 eFAX: +31-87-784-1130
Second Life: www.secondlife.com/?u=3b42cb3f4ae249319edb487991c30acb
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of KARSTEN GOPINATH
Sent: Thursday, March 08, 2007 2:35 PM
To: [email protected]
Subject: Re: Hybrid Car Crash - Tacoma WA - 3/6/07
This happens all the time with ICE vehicles. Hitting the brakes should have
stopped the car even if that little Prius engine was going at full throttle.
He probably hit the gas instead of the brakes.
On Mar 8, 2007, at 2:16 PM, Richard Acuti wrote:
> What a stupid article. In over 100 years of use, an ICE powered car
> has never crashed into a building due to a stuck accelerator? The 12v
> electrical system has never sparked a gasoline fire after an accident?
>
> I can see some upset soccer mommy in front of a Congressional
> committee now: "Hybrids and electric-drive cars are a menace to our
> highways and must be stopped!"
>
> You know, although the article quoted the guy saying he applied the
> brakes, never once did he say "I shut off the ignition switch". I
> realize he was taken by surprise and probably only had seconds to act
> but that probably would have prevented the whole thing. Just as it
> would for any other ICE vehicle.
>
> Rich A.
>
>
> Message-ID: <[EMAIL PROTECTED]>
> Date: Thu, 08 Mar 2007 10:17:31 -0800
> From: Steven Lough <[EMAIL PROTECTED]>
> MIME-Version: 1.0
> To: Electric Vehicle Discussion List RCVR <[email protected]>
> Subject: Hybrid Car Crash - Tacoma WA - 3/6/07
> Content-Type: text/plain; charset=us-ascii; format=flowed
> Content-Transfer-Encoding: 7bit
>
> As always ....The " PRESS" will fly in a helicopter, a crew, cameras,
> etc. to cover a shooting, a robbery, a Car Accident..
> any thing negative... But try and get them to cover an Electric Car
> that CAN, a young person triumphing over some adversity, doing some
> civic GOOD, building an EV, and the guy will tell ya..
> "Good News Doesn't sell News Papers"
>
> Well, this CRASH is not good news either.
> KING TV NEWS:
> http://www.king5.com/localnews/stories/
> NW_030607WABhybridcaraccidentJM.2646476e.html
>
> And all this just on the heels of Sherry Boschert's visit to Seattle,
> ( My EAA counterpart from San Francisco) and her Book Tour for her new
> book:
> "Plug-In Hybrids: The Cars That Will Recharge America"
>
> She did pull off a wonderful 1 hour interview on the local PBS station
> ( KUOW) You can go to their audio archives for 3/6/07...
> the Weekday Show, and listen to it...
> (short cut) http://www.kuow.org/defaultProgram.asp?ID=12364
>
> But the Media being what the Media IS... Sherry only got to mention
> the Seattle EV Association once, and on their web site where they list
> Additional WEB information on the Subject of the interview..
> no mention of SEVA or any of the PHEV, and EV work we have done
> over the last 26 years...
> That hurt a little...
> But I know any of us involved in Self Promotion of EV's and PHEV's or
> Alt Fuel in general have run into this...
>
> So the Good Fight Goes ON.
>
> _________________________________________________________________
> The average US Credit Score is 675. The cost to see yours: $0 by
> Experian.
> http://www.freecreditreport.com/pm/default.aspx?
> sc=660600&bcd=EMAILFOOTERAVERAGE
>
--- End Message ---
--- Begin Message ---
Ok, so enough people have told me to never put anything between the
pole shoes and motor housing that I'm inclined to believe they're
right :)
I have a little bit of knowledge about magnetic circuit theory, just
enough to be dangerous and do silly things like painting the back of
the pole shoes and inside of the housing. The theory I know tells me
that putting something between the pole shoes and housing makes no
difference to the magnetic flux at the air gap but since this is never
done there must be something I'm overlooking. Maybe someone more
experienced ( Lee?) can point out the mistake in my reasoning below.
armature
----------------
| |
> >
>Rg >Rg
> >
| |
/ \+ / \-
( F1) ( F2)
\ /- \ /+
| |
> >
>Rp >Rp
> >
| |
----------------
Motor casing
The model above shows a simple model of the magnetics in the motor. F1
and F2 are the fields, Rg is the air gap reluctance, Rp is the
reluctance I introduced when painting behind the pole shoes.
Reluctance is defined as R = l/(mu*A), where l is length , mu is
permeability and A is cross sectional area.
So, when I introduced Rp the reluctance of Rg should have been reduced
by the value of Rp due to the distance between armature and housing
being fixed. ( I presume mu of paint to be the same as air)
The same holds true for the magneto motive force across Rg, it is
reduce by the magneto motive force across Rp.
F1+F2 = F(RG)+F(RG)+F(Rp) +F(Rp)
or
2F(Rg) = F1+F2 - 2F(Rp)
Since Flux = F/R the flux in the air gap should therefore remain the same.
So someone please tear my reasoning apart. :)
-Peter
On 3/8/07, Jeff Major <[EMAIL PROTECTED]> wrote:
Eric, Peter and all,
There should never be any non-magnetic material between the pole and the
frame, such as paint, paper (Nomex) or air. Sometimes steel shims are used
between the pole and frame to adjust the main airgap distance (clearance
between the armature and pole face). Called pole shims. Made from steel or
iron. Adding pole shims reduces air gap which increases flux at light loads
and therefore reduces light load speed in series motors. Doesn't affect it
much at heavy loads.
Nomex (high temp paper) is often used to insulate field coils against frame
and pole. But if it was between the frame and pole, someone made a mistake.
Jeff
Eric Poulsen <[EMAIL PROTECTED]> wrote:
On my motor, the paper was behind the pole shoe _windings, but NOT on
the metal base that bolted to the motor housing. In fact, there were
some steel shims there.
Peter Gabrielsson wrote:
> After giving it some more thought, I could swear there was a thick
> sheet of nomex paper behind the pole shoes when I took it apart. Since
> you've presumable taken more of these apart than I have, tell me if
> I'm just hallucinating.
>
> -Peter
---------------------------------
Be a PS3 game guru.
Get your game face on with the latest PS3 news and previews at Yahoo! Games.
--
www.electric-lemon.com
--- End Message ---
--- Begin Message ---
From: Peter Gabrielsson
> So when I introduced Rp, the reluctance of Rg should have been
> reduced by the value of Rp due to the distance between armature
> and housing being fixed...
All fine so far. But look at the area of the pole pieces facing the armature
compared to the area against the outside case. I think you'll find that the
outside case area is smaller, so the effect of a given size of air gap is more
severe.
--
Lee Hart
--- End Message ---
--- Begin Message ---
I'm having a DUH moment here. Thanks lee.
On 3/8/07, Lee Hart <[EMAIL PROTECTED]> wrote:
From: Peter Gabrielsson
> So when I introduced Rp, the reluctance of Rg should have been
> reduced by the value of Rp due to the distance between armature
> and housing being fixed...
All fine so far. But look at the area of the pole pieces facing the armature
compared to the area against the outside case. I think you'll find that the
outside case area is smaller, so the effect of a given size of air gap is more
severe.
--
Lee Hart
--
www.electric-lemon.com
--- End Message ---
--- Begin Message ---
I think it has been mentioned before. You could do your sensing at
source or in a box under the hood and send PWM or other optically
isolated digital signal to the dashboard where a micro or simple PWM to
voltage converter makes it suitable for display.
Lawrence
Lee Hart wrote:
Bruce wrote:
I don't understand what double-isolated wiring means.
"Double insulation" is the safety agency approval's name for systems
that have two independent insulating systems to prevent a shock hazard.
Normal wiring is single insulated; there is just one layer of
insulation between you and the conductor. It is only allowed for low
voltages (under 30 volts), where it is impossible for people to touch
it (inside electrical boxes or conduit), or where lobbyists have paid
good money to get it grandfathered in (we've always used
single-insulated "zip" cords for lamps, and we ain't a gonna change!).
A double-insulated wire has *two* layers of insulation, made of
different materials, each of which is adequate all by itself to
insulate the voltage in question. This is what you see for all house
wiring (romex), and on all newer appliances invented after the antique
rules for lamps etc. got grandfathered in (computers, etc).
As applied to a device (meter, electric drill, etc.) double-insulated
means there are at least two independent layers of insulation, each
able to withstand the full voltage, between all live parts and the
operator.
With regard to a dashboard-mounted voltmeter: Double insulated means
the wires running to it have two layers of insulation (for example,
the wire itself, and an insulating sleeve over the wires). The meter
itself probably has a plastic or glass case; that counts as one layer
of insulation (if it got broken or removed, you could touch the wires
inside). So, you'd mount it behind a clear glass or plastic panel (the
second layer of insulation).
--- End Message ---
--- Begin Message ---
Hi All,
Anyone out there that has used a hilux diff in a EV conversion, preferabbly
a performance vehicle. I want to source a good diff to use that won't break
under use and also break my bank in a datsun 1200 ute project.
Cheers
--- End Message ---
--- Begin Message ---
On Mar 7, 2007, at 8:18 PM, Jim Husted wrote:
I just had to start with Pauls little comment. Yeah I
walked into that one huh? Okay 4th bolt, how's that
funnyboy??? Then it looks to me as though you're
saying something about my crap work, LMAO!
I just can't catch a break with you guys!
Just checkin' to see if you where still awake :-) Can't have the
motor-man sleeping on the job!
Last time I looked you still owed me a ride in your
buggy! I'm not a chaulkboard kind of guy but you get
one more mark and well... hehe.
Why are you 200 miles south of where all the best EVs are? LMAO (oops,
hope I didn't wake Plasma Boy!) hehe
Looks like you gotta get out more often. Perhaps you can hit up a show
I can be at (that is, when I'm not chained to an airplane.) Rides are
free, but the range isn't 200 miles! <g>
[snip ahead in this thread]
I told James if he paints them red I'll kill him 8^o
You better not fry my insulation attaching the add-on
studs either. I can see James burning them to a crisp
just so he could take a picture of my (how'd Paul put
it..) crap work? 8^p
What! YOU paint them RED! I hope NetGain doesn't start hunting you down
now <G> (see <http://www.evsource.com/tls_motors.php> for what I'm
talking about)
How about purple - I like purple <http://www.evfun.com>. O.K. - that
may be a bit much, or righteously obvious :-)
Paul "neon" G.
--- End Message ---
--- Begin Message ---
Just in case this is helpful to anyone...Patrick Kopooshian <[EMAIL PROTECTED]>
FWIW dept.
I got a quote from the Valence rep as follows:
Pricing at low volumes (<50 pieces):
U1-12XP: $ 635 13.4 lbs
U24-12XP: $ 1,515 35.4 lbs
U27-12XP: $ 1,905 40.9 lbs
BMS - $ 100
Chargers:
PFC-20
Zivan NG series
CONTACT Patrick Kopooshian <[EMAIL PROTECTED]>
U1 40 ah nom 12V
U24 100 ah group24 nom 12V
U27 130 ah group27 nom 12V
www.valence.com has the pdf with full info, but no pricing.
I did not hear about using them in parallel with the BMS he sells.
$1900 is an expensive battery!
HTH
John
--- End Message ---
--- Begin Message ---
Hi Shari,
Do you have more detailed schematics/dimensions for the AC55 motor? The
document on Azuredynamics's website only shows a few dimensions. Or maybe more
detailed photos of the front/sides of the system, and at an angle? This motor
is so close to fitting, from my measurements, I need to clear about 0.5" or so
from a 4 inch area on the side of the motor near where it mounts to the
transmission. (I could also space the motor out from the transmission, but I
don't want to do that). Thanks!
- Tony
----- Original Message ----
From: Electro Automotive <[EMAIL PROTECTED]>
To: [email protected]
Sent: Thursday, March 8, 2007 10:41:56 AM
Subject: Re: How to get Solectria AC55 motor to fit transmission, is it
possible?
At 02:38 AM 3/8/2007, you wrote:
>The Solectria AC55 motor seems to be a good choice for a "budget" AC system:
>
>http://www.azuredynamics.com/pdf/AC55%20-%20June%202005.pdf
>
>It's diameter is 13.7", though! HUGE!
>
>The center of my transmission to the right wheel drive axle (the
>transmission is to the left of the engine) measures about 5.5
>inches. So, it would appear this motor would be too big, but I was
>wondering if one trimmed some of the heatsink fins near the drive
>shaft, plus maybe a little bit into the casing, if this would
>provide enough clearance? I think I would need to trim off enough to
>gain 1.35" of clearance, I'm estimating.
Drive axle interference can definitely be a problem with the AC55 in
FWD cars. Also, it requires a minimum of 288V, and 312V is
considered optimum. We recommend this motor mostly for pickups.
Shari Prange
Electro Automotive POB 1113 Felton CA 95018-1113 Telephone 831-429-1989
http://www.electroauto.com [EMAIL PROTECTED]
Electric Car Conversion Kits * Components * Books * Videos * Since 1979
--- End Message ---
--- Begin Message ---
Thanks, Damon.
So the advantage then to the heat sink is the cooler it's kept, the
longer it'll deliver amps closer to its max rating.
The car is going to see mostly gentle, slow driving on flat side
streets, but having seen the 40 and 50A draws @ 100+V people are
reporting in the other thread just to spin the wheels *on jackstands*,
it sounds like I'm going to need all the reserve current I can get from
this puppy.
Darin
It all depends on your current draw. I had a controller similar to
yours on the first go around with my motorcycle. With a single fixed
gear ratio, I found that I needed a heatsink to avoid the controller
from going into thermal cutback on hills.
--- End Message ---
--- Begin Message ---
Hey Peter, all
Well I just came from your site and having scanned
through it I wanted to say "well having you been a
busy little motor beaver" 8^=
Well you done did it now mister you gave me you blog
address, hehe. Having stuck my big nose into your
business I thought I'd put out some thoughts.
I remember getting you the brushes, used just enough I
couldn't sell as new but something I'd likely not use
myself so I'm glad they found a good home. I didn't
know you had a blog going so it was my first visit. I
actually link to Jay Donnaways site being I hadn't
been to his in a while (hey Jay)(if you got your ears
on).
looking at the coils there were a couple spots where
the insulation is breaking down, one where the sensor
was attached and the other being at least in a great
area to be in, which is the last wind which can be
easily wrapped. BTW what's that funky orange tape
stuff, that don't look class H to me lol. I saw the
field upgrade and read the blog and it states "all
that's left to do is install them and varnish them.
I'm hoping you finished wrapping the coils before
doing that. You'll want the entire coil wrapped.
Might be a "well dah Jim" note but just want to make
sure, didn't see no finished pic of it completely
wrapped. I was glad to see you used silver solder so
you've got a nice connection there.
How are you going to varnish it? You have a local
shop you'll have do it? I'm asking cause you'd be a
good cadidate for AC-46 spray. I bake mine but it
will air dry anyway thought I'd throw that at you. I
know James Massey has an issue getting it but you
should have no problem. Just throwing that out there
for the inhouse repair guys needing a good, cheap,
insulation option to having to sub that part out.
Ohh btw make sure you check those fields for a short
to the housing before you lock it down with varnish
(specialy using the type of tape you used) or you'll
be bumming. I use a .007 non-adhisive fiberglass wrap
and not a tape. I find the sticky edges of the tape
attract carbon dust specialy if left unvarished. I
also try to wrap my coils without a splice and
flipping 20' of tape around a coil would get well
sticky, lmao.
Also 3/4 turn on the springs sounds right. That's a
lot of difference from the 1/4 or 1 1/4 turn you
posted earlier, LMAO!!
All in all you're looking good, just wanted to add
this little input. But I'll be keeping my eye on you
mister!
Hope this helps
Jim Husted
Hi-Torque Electric
____________________________________________________________________________________
Don't get soaked. Take a quick peek at the forecast
with the Yahoo! Search weather shortcut.
http://tools.search.yahoo.com/shortcuts/#loc_weather
--- End Message ---
--- Begin Message ---
When spending 40 to 50A (at 100+V) just to turn the wheels on jackstands,
that is an indication of severe drag.
Either brake drag, or "goop" instead of thin oil in the transmission and
diff,
or bearings that are grinding the last remains of the balls to metal dust...
Why would it take 5kW to perform no work, only overcome friction of unloaded
wheels while the entire car is supposed to run at about 10kW while cruising
down the road at constant speed? It sounds to me that about half the energy
is wasted in a bad driveline of other drag, that could have been used in
propelling the vehicle.
With the different issues fixed, the current draw must be much lower.
NOTE that it is entirely possible that the used amp-meter did not
correctly measure the current (peak-hold iso average) or that
motor amps were reported, which can be large but if the motor voltage was
10V or so, then this does not represent a significant power draw....
Regards,
Cor van de Water
Systems Architect
Proxim Wireless Corporation http://www.proxim.com
Email: [EMAIL PROTECTED] Private: http://www.cvandewater.com
Skype: cor_van_de_water IM: [EMAIL PROTECTED]
Tel: +1 408 542 5225 VoIP: +31 20 3987567 FWD# 25925
Fax: +1 408 731 3675 eFAX: +31-87-784-1130
Second Life: www.secondlife.com/?u=3b42cb3f4ae249319edb487991c30acb
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Darin - at - metrompg.com
Sent: Thursday, March 08, 2007 11:34 AM
To: [email protected]
Subject: Re: Heatsinking a Curtis - necessary for golf cart versions?
Thanks, Damon.
So the advantage then to the heat sink is the cooler it's kept, the longer
it'll deliver amps closer to its max rating.
The car is going to see mostly gentle, slow driving on flat side streets,
but having seen the 40 and 50A draws @ 100+V people are reporting in the
other thread just to spin the wheels *on jackstands*, it sounds like I'm
going to need all the reserve current I can get from this puppy.
Darin
> It all depends on your current draw. I had a controller similar to
> yours on the first go around with my motorcycle. With a single fixed
> gear ratio, I found that I needed a heatsink to avoid the controller
> from going into thermal cutback on hills.
--- End Message ---
--- Begin Message ---
At 04:22 PM 8/03/07 -0800, Paul "neon" G. wrote:
On Mar 7, 2007, at 8:18 PM, Jim Husted wrote:
<snip>
I told James if he paints them red I'll kill him 8^o
You better not fry my insulation attaching the add-on
studs either. I can see James burning them to a crisp
just so he could take a picture of my (how'd Paul put
it..) crap work? 8^p
What! YOU paint them RED! I hope NetGain doesn't start hunting you down
now <G> (see <http://www.evsource.com/tls_motors.php> for what I'm talking
about)
G'day Paul, Jim and All
Jim was having a go at me for painting the inside of an MKZ motor red, as
that was the colour of the rattle can of motor winding paint the wholesaler
had. Any colour you want, as long as you want red. They are getting me in
some clear stuff!
The second MKZ of the pair has two fields that went through to the pole
shoes and burned the insulation off to the point where the turns are
shorted to each other. Jim is sending me some reconditioned field windings
he has wrapped and baked (usual work of art stuff) and he doesn't want me
grafiti painting over Rembrant (or maybe that's more like Picasso!).
Regards
[Technik] James
--- End Message ---
--- Begin Message ---
On Wed, 07 Mar 2007 21:17:45 -0600, Matthew Milliron <[EMAIL PROTECTED]>
wrote:
>On Wed, 7 Mar 2007 15:51:33 -0800, you wrote:
>
>>> My LeSled EV (Lectric Leopard based on Renault LeCar, but
>>> using 120V of floodeds) is inching toward full-time use.
>>> After my close-to-home trials the motor is usually too
>>> hot to leave my hand on it.
>>Adding a blower or driving in a different gear make sense... a cheap bit
>
> How about a piece of copper tubing bent into a long S shape. You
>could braze it onto the case or just use a few long hose clamps. Then
>a small radiator core and pump?
>
>R. Matt Milliron
>1981 Jet Electrica
>http://www.austinev.org/evalbum/702
>My daughter named it, "Pikachu". It's yellow and black,
>electric and contains Japanese parts, so I went with it.
Robert Matthew Milliron
--- End Message ---
--- Begin Message ---
I can't see how a few battery meltdowns could get you banned from a track
because of the cost of repairing it. After all gasoline powered cars catch
of fire and blow up on the track all the time.
From: David Dymaxion <[EMAIL PROTECTED]>
Reply-To: [email protected]
To: [email protected]
Subject: SCCA Problems with Electrics
Date: Thu, 8 Mar 2007 08:56:08 -0800 (PST)
<http://sccaforums.com/forums/permalink/222005/221933/ShowThread.aspx#221933>
Quoted from http://www.sccaforums.com:
Two years ago at the SCCA convention someone brought up the idea in
the main Town Hall meeting about electric race cars. He basically
sort of accused the SCCA of not bothering to care about electric race
cars in general and said we needed to be exploring it. Then
someone from Arizona (IIRC) said their region had several folks who had
tried electric race cars but that they had several have battery
meltdowns on track and they were banned from at least one track because
of the damage and cleanup problems from this kind of failure. I
can only imagine that even if you got the necessary monitoring down to
prevent this that you'd still have to worry about the problems caused
by wrecks.
Anyway, the "meltdown" problem is one that should
definitely be carefully considered for autocross use since it's pretty
easy to lose sites these days and very hard to get new ones. All
that said, the idea of building an electric autocross car is fairly
intriguing. Think about the ramifications of being able to dial
your power delivery up and down based on how many runs you plan to take
and how long the course is. The tire cost debate would go out the
window compared to the battery cost debate, though! I used to
race electric RC off road buggies and believe me, you haven't seen
anything like the battery wars we could see in autocross with a popular
electric class!
The whole thread:
<http://sccaforums.com/forums/1/222005/ShowThread.aspx>
____________________________________________________________________________________
Looking for earth-friendly autos?
Browse Top Cars by "Green Rating" at Yahoo! Autos' Green Center.
http://autos.yahoo.com/green_center/
_________________________________________________________________
Dont waste time standing in linetry shopping online. Visit Sympatico / MSN
Shopping today! http://shopping.sympatico.msn.ca
--- End Message ---
--- Begin Message ---
Watch out - from what I understand from motor gurus (Jim, have your ears
on?)
It is often the brushes that are heating up the quickest.
So, if the outside of your motor is hot, it is not a good idea to just cool
the outside case and think the more severe problem won't bite you.
I suggest you add a blower, though if this is a totally enclosed case that
may be difficult without making holes in it.
Is there a built-in fan on the motor axle? Which motor is this?
What RPMs are you running the motor - make sure it's not lugging (too low
RPM, too high current and little cooling because the fan isn't moving much
air.
I think more motors died from lugging than from 'sploding (over-revving).
Cor van de Water
Systems Architect
Proxim Wireless Corporation http://www.proxim.com
Email: [EMAIL PROTECTED] Private: http://www.cvandewater.com
Skype: cor_van_de_water IM: [EMAIL PROTECTED]
Tel: +1 408 542 5225 VoIP: +31 20 3987567 FWD# 25925
Fax: +1 408 731 3675 eFAX: +31-87-784-1130
Second Life: www.secondlife.com/?u=3b42cb3f4ae249319edb487991c30acb
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Matthew Milliron
Sent: Thursday, March 08, 2007 6:32 PM
To: [email protected]
Subject: Re: case cooling (was RE: Motor blower)
On Wed, 07 Mar 2007 21:17:45 -0600, Matthew Milliron <[EMAIL PROTECTED]>
wrote:
>On Wed, 7 Mar 2007 15:51:33 -0800, you wrote:
>
>>> My LeSled EV (Lectric Leopard based on Renault LeCar, but using 120V
>>> of floodeds) is inching toward full-time use.
>>> After my close-to-home trials the motor is usually too hot to leave
>>> my hand on it.
>>Adding a blower or driving in a different gear make sense... a cheap
>>bit
>
> How about a piece of copper tubing bent into a long S shape. You
>could braze it onto the case or just use a few long hose clamps. Then
>a small radiator core and pump?
>
>R. Matt Milliron
>1981 Jet Electrica
>http://www.austinev.org/evalbum/702
>My daughter named it, "Pikachu". It's yellow and black, electric and
>contains Japanese parts, so I went with it.
Robert Matthew Milliron
--- End Message ---
