EV Digest 3902
Topics covered in this issue include:
1) Zivan K2 bites the dust
by Paul Wallace <[EMAIL PROTECTED]>
2) Re: EVDL poll where do you live ?
by "David" <[EMAIL PROTECTED]>
3) Re: EVDL poll where do you live ?
by Jon Glauser <[EMAIL PROTECTED]>
4) Re: EVDL poll where do you live ?
by "Raymond Knight" <[EMAIL PROTECTED]>
5) RE: / MR2 power steering pump / on ebay
by "August Johnson" <[EMAIL PROTECTED]>
6) RE: EVDL poll where do you live ?
by "Bryan Avery" <[EMAIL PROTECTED]>
7) Re: EVDL poll where do you live ?
by [EMAIL PROTECTED]
8) TS Chargers
by "Bill Dennis" <[EMAIL PROTECTED]>
9) Re: EVDL poll where do you live ?
by "andres olsen" <[EMAIL PROTECTED]>
10) Re: EVDL poll where do you live ?
by "andres olsen" <[EMAIL PROTECTED]>
11) Re: Different kind of commute
by Chris Zach <[EMAIL PROTECTED]>
12) HYBRID EV CONTROLLER THAT IS EDUCATIONAL
by "Jeff Tweed" <[EMAIL PROTECTED]>
13) Re: Solectria Force with NiMH batteries needs help getting on the
road
by Don Buckshot <[EMAIL PROTECTED]>
14) Treadmill motor for lawn tractor?
by Dave Cover <[EMAIL PROTECTED]>
15) use of electric forklift motors
by [EMAIL PROTECTED]
16) Re:EVDL poll where do you live?
by James H Wolfe <[EMAIL PROTECTED]>
17) ruminitions on energy
by Jeff Shanab <[EMAIL PROTECTED]>
18) Re: EVDL poll where do you live ?
by Brian Staffanson <[EMAIL PROTECTED]>
19) RE: / MR2 power steering pump / on ebay
by Christopher Robison <[EMAIL PROTECTED]>
20) Re: EVDL poll where do you live ?
by "Peter Eckhoff" <[EMAIL PROTECTED]>
21) Re: EVDL poll where do you live ?
by Dragan Stancevic <[EMAIL PROTECTED]>
22) Re: Avcon Adapter
by Danny Ames <[EMAIL PROTECTED]>
23) CivicWithACord: Latest & ? for trans. experts
by Bob Bath <[EMAIL PROTECTED]>
24) Ford Ranger Adapter Plate Dimensions?
by Dragan Stancevic <[EMAIL PROTECTED]>
25) Re: / MR2 power steering pump / on ebay
by "Steve Clunn" <[EMAIL PROTECTED]>
26) Re: Treadmill motor for lawn tractor?
by James Massey <[EMAIL PROTECTED]>
27) Re: use of electric forklift motors
by jerry dycus <[EMAIL PROTECTED]>
--- Begin Message ---
When the K2 decided to go into chatter mode during bulk phase last week,
I figured it wasn't going to be too long before it died completly. This
weekend I plugged it in to do a finish charge and ZAP, bad smells and no
power.
Now I'm using the PFC50 for all of my charging. Like Rich pointed out,
it is possible to do what the batteries require, it just takes a little
hand holding. Now I am without an onboard charger also. Not that
having one has ever been an advantage since Portland has very few public
charging locations.
I sent email off to ZAPI USA to find out where the repair depot is
nowdays. I can't find Greg McCrea or Gary Flo on the web anymore. The
Zapi web page still lists Greg as the repair guy. I'm hoping that I can
get my K2 fixed, but it doesn't look good so far.
If I can't get it fixed, I'd like to find a set of schematics. I can
always attempt to fix it myself. Better yet would be to find a used one
that someone would be willing to part with. I'm looking for leads if
any of you have either schematics, a contact for a repair depot, or a K2
that is gather dust that has high voltage output (220vdc max) 220vac
input, and knows the IUIa algorithm.
Paul Wallace
'91 Chevy S-10 full of SAFT nicads
--- End Message ---
--- Begin Message ---
Alabaster, AL (a suburb of Birmingham, AL)
No EV, yet.
----- Original Message -----
From: "Danny Ames" <[EMAIL PROTECTED]>
To: "EV SEND MSG" <[EMAIL PROTECTED]>
Sent: Saturday, November 06, 2004 6:11 PM
Subject: EVDL poll where do you live ?
> It would be interesting to find out how many different places and
> countries EVDL members are in.
> Who knows you may discover your neighbor is on EVDL.
> I'm in Brisbane California USA 1 mile south of San Francisco.
> A few of you I have met this way.
> Cheers,
> Danny Ames
>
--- End Message ---
--- Begin Message ---
Boise, Idaho... I'm all by my self here...
-Jon
--- End Message ---
--- Begin Message ---
Brantford, Ontario, Canada.
15minutes East of Hamilton, Ontario
Bell invented the phone here, used it here for the first time, and it was
first manufactured here too. :)
I used to play street hockey with Wayne Gretzky too.
--- End Message ---
--- Begin Message ---
Hi Steve,
John's figures are about right for what I saw while playing with the
pump on 12V also. In the MR2, the pumps speed was varied according to
the vehicle speed, amount the steering wheel was being turned, etc. I'm
guessing that for a lighter vehicle, it wouldn't need as much boost. I
think I read somewhere that in the MR2, the pump rarely was running on
more than 9 volts.
August
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Steve Clunn
Sent: Monday, November 08, 2004 7:31 AM
To: [EMAIL PROTECTED]
Subject: / MR2 power steering pump / on ebay
I've been working on the power steering for the nission 300zx all this
weekend , and am finding that its taking a lot more power than I had
though
when you trun the steering wheel . I picked a motor that I though was
rated
about 1 1/2 hp 32v I ( looked like a better pick that the tread mill
motor i
also have) started with 3 to 1 ratio , now a 5 to 1 and still when the
steering wheel is being trunned it slows the motor down to almost a stop
,
I'm running it on 36v and am seeing 50 amp under load , so I'm looking
at
your e bay pump. any idea of the amps it needs to run on , at 12v this
could
be a lot .
Steve Clunn
----- Original Message -----
From: "August Johnson" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, November 07, 2004 7:22 PM
Subject: Selling Toyota MR2 power steering pump on ebay
> I'm selling the MR2 power steering pump that I bought a couple years
> ago. I bought it because I was going to build and EV, instead I bought
> Otmar's Sprint. It's listed as # 7933330981 on ebay.
>
> August Johnson
>
--- End Message ---
--- Begin Message ---
I'm in Eugene, Oregon. I know there's a bunch of listers in the Portland
area. Anyone else in my neck of the woods?
Bryan Avery
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
> Behalf Of Danny Ames
> Sent: Saturday, November 06, 2004 4:11 PM
> To: EV SEND MSG
> Subject: EVDL poll where do you live ?
>
> It would be interesting to find out how many different places and
> countries EVDL members are in.
> Who knows you may discover your neighbor is on EVDL.
> I'm in Brisbane California USA 1 mile south of San Francisco.
> A few of you I have met this way.
> Cheers,
> Danny Ames
--- End Message ---
--- Begin Message ---
Worth, Illinois. SW suburb of Chicago.
About 10 miles from Netgain, home of the WarP engine.
Currently converting a Kawasaki - Etek/sevcon electric motorcycle.
--- End Message ---
--- Begin Message ---
I know that Victor uses a Brusa to charge his series string of ThunderSky
batteries. What chargers do others of you in the group use to charge your
string of ThunderSky batteries? Thanks.
Bill Dennis
--- End Message ---
--- Begin Message ---
san juan, Argentina.1300 km (about 800 miles) east Buenos Aires.
----- Original Message -----
From: "EV DL" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, November 07, 2004 10:52 PM
Subject: Re: EVDL poll where do you live ?
> Previously: up the street from Otmar in Palo Alto, California.
> As of a few months ago: Cambridge, Massachusetts.
>
> I'm currently preparing the Electric Banana for my first EV winter. I
> bet I have one of the most rust-free 914's in New England-- for
> another two months or so.
>
> Brandon Stafford
>
>
--- End Message ---
--- Begin Message ---
sorry meant WEST Buenos Aires . Itīs been a long day..........
----- Original Message -----
From: "andres olsen" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, November 08, 2004 11:27 PM
Subject: Re: EVDL poll where do you live ?
> san juan, Argentina.1300 km (about 800 miles) east Buenos Aires.
>
> ----- Original Message -----
> From: "EV DL" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Sunday, November 07, 2004 10:52 PM
> Subject: Re: EVDL poll where do you live ?
>
>
> > Previously: up the street from Otmar in Palo Alto, California.
> > As of a few months ago: Cambridge, Massachusetts.
> >
> > I'm currently preparing the Electric Banana for my first EV winter. I
> > bet I have one of the most rust-free 914's in New England-- for
> > another two months or so.
> >
> > Brandon Stafford
> >
> >
>
>
--- End Message ---
--- Begin Message ---
I put a group 31 under the seat of my son's jeep. I had to reverse the back
axle to get the motors out of the way.
Mmm. I can see that being a problem. The Hawker is a low battery, and
sits very low and snug forward and between the rear motors. So far it
hasn't shown any tendency to flip, which is good.
We even went to two SVR-14s with a single 4.5 inch motor with a four inch
lift kit and have had no more backward flips.
http://www.manzanitamicro.com/PW%20jeep.html and
http://www.geocities.com/sorefeets/ev/powerwheels/rudmanised.txt
*nod* I thought about replacing the motors with something a bit more
beefy, but to be honest they're doing a good job at this point. Down the
road I might replace them, but to be honest the kids will probably have
outgrown it by that point.
Chris
--- End Message ---
--- Begin Message ---
1) Is there anyone on the list that knows about David Arthurs Pulser ev
controller ?
2) If so why did he not vari the speed of the pulser drive motor which is low
current
to achieve the rate of pulse for the high current 4 brush switch motor (seems
better idea than
having low and high switches)?
This hybrid Opel GT is a nice beginner plan that can be adapted for other
vehicles.
FOR $25.00 Plan # 1764 from Mother Earth News IS A GREAT BUY FOR BEGINNERS
AND POOR FOLK ALIKE ........AND IT IS EDUCATIONAL
--- End Message ---
--- Begin Message ---
Will,
I had so much trouble with the NiMH batteries in my Force that I
converted over to Deka Dominator. Ovonics offered to sell me NiMH
replacements for $1000.00 EACH! Just a little more than I can afford!
Now the Force is working without ANY problems for the last year. Range
is about 40 miles per charge. My wife drives it every day to work and back.
Don
Kansas City, Mo
shoko tanabe wrote:
I have a friend that has purchased a Solectria Force
with NiMH batteries and needs help getting it back on
the road. The car has been sitting around for years
and all the batteries read zero. Will a few charging
cycles brings these batteries back?
- Will
Will Beckett, membership
4189 Baker Ave.
Palo Alto, CA 94306
(650) 494-6922
Become a member or donate to the Electric Auto
Association, donations are tax deductible.
http://eaaev.org/eaamembership.html
--- End Message ---
--- Begin Message ---
I had heard about using treadmill motors with lawn tractors and remembered we
had a problem with
our treadmill a while back. They sent us a replacement motor so the tech would
have it there to
fix the machine. Well, the motor wasn't the problem, and they didn't bother
asking for the
replacement back. So.... I need to figure out if this one will work. It's a
Keys treadmill, but I
don't know who built the motor. It's a "variable speed dc motor" but no other
identification
shown. There are three wires; one green labeled ground, one red wire labeled
"(+) (A-1)" and one
black wire labeled "(-) (A-2)." Here's more info from the label.
Part No.: 22352700
HP: 1.75
RPM: 4950
Duty: CONT
V.ARM: 100
A.ARM: 18.7
CLASS INSULATION: F
40 C AMBIENT
ENCL: OFC
MODEL: 4620D-15
DATE CODE: BT03
CUSTOMER P/N: 12-0002
FF: 1.0
S/N: 25721
The motor housing measures a skinny 8 and one eigth inches long by 4.5 inches
in diameter. The
shaft come out both ends of the motor but only one end is slotted with a
keyway. Does any
recognize the motor? Is it a keeper?
Since my lawn tractor has a hydrostatic drive and the implements are driven off
the same pulley, I
was thinking I could replace the ICE with the electric motor and use it the
same way. Set the
motor to run at a certain RPM and drive. Hopefully I could use this for both
mowing and
snowblowing. Am I asking too much from this motor? What kind of controller do I
need? I'm sure I
could fit 4 to 6 batteries on the tractor if I needed to. I'd like to get about
2 to 4 hours
running time for mowing. If this is feasible, I may be working on two EVs this
winter instead of
one.
Any opinions out there?
Thanks
Dave Cover
--- End Message ---
--- Begin Message ---
Hello,
Does anyone have any experience with the use of electric series wound
forklift motors to power an EV? I know it has been done, but knot
fully aware of the outcome.
I would like to also know about the practice of using higher voltages
on a 36 volt motor and what this does to the amp draw, etc.
I've seen ADC 36 volt rated motors being run on higher voltages.
One of the motors I have is a GE 5.5 hp 36volt motor. Thinking of
running it at 48 volts or so, in a lightweight 3 wheeler.
Any thoughts?
Thanks,
Jeff
--- End Message ---
--- Begin Message ---
Glendale, AZ.
Northwest corner of Phoenix... where we have $2.00+ a gallon gasoline
and 6.6C Kwh electricity
--- End Message ---
--- Begin Message ---
I have been following your exploits with kids for years, makes me feel
like a kid :-)
It made me think you are the best person to run this past
If 75% of energy is thrown off of an ICE engine as heat then instead of
trying to recover the relativly smaller loss of regenerative braking,
shouldn't the hybrid manufactures look at regenerating the waste heat
from the exhaust?
recovery technology efficiency hybrid drive
sterling 40%(max) 80-90%
.4*.85 = 32 - 36 of 3/4 waste heat(more time for heat
exchange) = ~ 27% increase in mileage
steam turbine (~75%) .75
* .8 - .9 = 60 - 68 % of 1/2 waste heat = ~ 50-60% increase in
mileage
Thermo eletric ? 15% ?
= not worth it
questions for us kiddies
How big would a steam microturbine built like a capstone be I wonder?
are these numbers even close. more energy is given off as heat than is
turned into shaft motion, why aren't we driving steam cars run on gas?
--- End Message ---
--- Begin Message ---
The second from Logan, UT. We will see whose EV is up first.
Brian,
Converting a classic VW Bug, the EVW, an electric Voltswagon. It will
sure be fun.
Danny Ames wrote:
It would be interesting to find out how many different places and
countries EVDL members are in.
Who knows you may discover your neighbor is on EVDL.
I'm in Brisbane California USA 1 mile south of San Francisco.
A few of you I have met this way.
Cheers,
Danny Ames
--- End Message ---
--- Begin Message ---
A couple years back, Mark Farver put one of these pumps in a Ford
Ranger, and more recently Nick Viera put one in his 4WD Cherokee. In
both cases, the pump was definitely up to the task; steering is very
easy. The only downside is the whine; the pump will almost certainly be
the loudest thing in a typical EV, worse than the vacuum pump.
FWIW, I'll be putting this one in an Isuzu Hombre, unless you outbid me,
Steve :o) (No worries if that happens; these things pop up at
junkyards from time to time.)
Any thoughts on how one might make a pump like this "demand-driven"?
Like, with a torque sensor or something? Does the MR2 actually do this?
--chris
On Mon, 2004-11-08 at 19:37, August Johnson wrote:
> Hi Steve,
>
> John's figures are about right for what I saw while playing with the
> pump on 12V also. In the MR2, the pumps speed was varied according to
> the vehicle speed, amount the steering wheel was being turned, etc. I'm
> guessing that for a lighter vehicle, it wouldn't need as much boost. I
> think I read somewhere that in the MR2, the pump rarely was running on
> more than 9 volts.
>
> August
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
> Behalf Of Steve Clunn
> Sent: Monday, November 08, 2004 7:31 AM
> To: [EMAIL PROTECTED]
> Subject: / MR2 power steering pump / on ebay
>
> I've been working on the power steering for the nission 300zx all this
> weekend , and am finding that its taking a lot more power than I had
> though
> when you trun the steering wheel . I picked a motor that I though was
> rated
> about 1 1/2 hp 32v I ( looked like a better pick that the tread mill
> motor i
> also have) started with 3 to 1 ratio , now a 5 to 1 and still when the
> steering wheel is being trunned it slows the motor down to almost a stop
> ,
> I'm running it on 36v and am seeing 50 amp under load , so I'm looking
> at
> your e bay pump. any idea of the amps it needs to run on , at 12v this
> could
> be a lot .
> Steve Clunn
>
>
> ----- Original Message -----
> From: "August Johnson" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Sunday, November 07, 2004 7:22 PM
> Subject: Selling Toyota MR2 power steering pump on ebay
>
>
> > I'm selling the MR2 power steering pump that I bought a couple years
> > ago. I bought it because I was going to build and EV, instead I bought
> > Otmar's Sprint. It's listed as # 7933330981 on ebay.
> >
> > August Johnson
> >
>
--- End Message ---
--- Begin Message ---
Peter Eckhoff
Durham, NC
Member TEAA http://www.rtpnet.org/~teaa/
Supporter of the EV Challenge http://www.evchallenge.org/
Rebuilding Suzuki Samurai
--- End Message ---
--- Begin Message ---
San Jose, CA
On Saturday 06 November 2004 16:11, Danny Ames wrote:
> It would be interesting to find out how many different places and
> countries EVDL members are in.
> Who knows you may discover your neighbor is on EVDL.
> I'm in Brisbane California USA 1 mile south of San Francisco.
> A few of you I have met this way.
> Cheers,
> Danny Ames
--
Peace can only come as a natural consequence
of universal enlightenment. -Dr. Nikola Tesla
--- End Message ---
--- Begin Message ---
http://becketts.ws/eaa/eaasv-forms/avconbox.pdf
http://www.avconev.com/
Avcon folks had one for hobbyist about 175.00 about 2 years ago.
Both links still work.
The EAA Avcon box is a nice robust rig.
Great for many EV car users - mine has been used by several folks.
Danny...
Lawrence Rhodes wrote:
>
> Is it possible to wire up a homemade Avcon adapter or is the EAA Avcon a
> good deal. The problem is the waiting period of 6 weeks. Anybody have a
> unit used they want to part with. Lawrence Rhodes.......
--- End Message ---
--- Begin Message ---
Hey all,
Can't tell you how stoked I am to have the vac.
pump issue resolved. Fabbed a mount for the Gast +
Square D switch. SOOOO quiet! Now I cut in at 10"
Hg, and cut off at 20" Hg.
My last issue is a grinding sound that starts at
about 20-30 mph. There's little doubt it's something
having to do with the transmission.
a) The car hydroplaned and hit a curb during rain at
20K miles. Wheel was replaced, but not the CV axle.
Any chance this screwed up the tranny in the 70K miles
between the incident and converting it?
b) Any idea what it might be? Main bearing? Is
there something I should check into first? It stops
when I put it into 2nd, but only for a little while.
And I really shouldn't be shifting out for a lot
longer. (Controller goes into current limit mode).
This car is too quiet to put up with a grind at
certain speeds!
Thanks in advance,
=====
'92 Honda Civic sedan, 144V
____
__/__|__\ __
=D-------/ - - \
'O'-----'O'-'
Would you still drive your car if the tailpipe came out of the steering wheel?
Are you saving any gas for your kids?
__________________________________
Do you Yahoo!?
Check out the new Yahoo! Front Page.
www.yahoo.com
--- End Message ---
--- Begin Message ---
Hi-
does anyone have dimesions for a late 90's 4 cylinder Ford Ranger adapter
plate? I'll be measuring the clutch bell this weekend and I was wondering if
anyone has already done it, could save me a lot of trouble.
Thanks.
--
Peace can only come as a natural consequence
of universal enlightenment. -Dr. Nikola Tesla
--- End Message ---
--- Begin Message ---
----- Original Message -----
From: "August Johnson" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, November 08, 2004 8:37 PM
Subject: RE: / MR2 power steering pump / on ebay
> Hi Steve,
>
> John's figures are about right for what I saw while playing with the
> pump on 12V also. In the MR2, the pumps speed was varied according to
> the vehicle speed, amount the steering wheel was being turned, etc. I'm
> guessing that for a lighter vehicle, it wouldn't need as much boost.
This Nissan is far for light with maybe 26 golf cart batteries . I played a
little more with the set up I had made this weekend and even with 48 v the
load of the ps pump slowed the motor down almost to a stop so a few blast
with the torch and I redo the mount and put it on the front of the net gain
9" motor , I first tried using a pulley 1/2 the size of the one on the pump
on the motor. Hooded a 12v battery to the 9" and it spins the pump , and
even a this low speed the ps is working . I did some amp reading which I
found interesting . the little motor that I had first set up was pulling
around 50 amp when loaded hard , the 9" also used 50 (but at just 12v)and
went to 70 amps when loaded ( turning the steering wheel) ,
it would seem the big 9" is 3 times more eff that the smaller motor.
I
> think I read somewhere that in the MR2, the pump rarely was running on
> more than 9 volts.
>
and how many amps ? and do you have to have all the control boxes or could
it just be hooked for one speed , getting all those boxes to talk to each
other might not be so easy.
Steve clunn
> August
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
> Behalf Of Steve Clunn
> Sent: Monday, November 08, 2004 7:31 AM
> To: [EMAIL PROTECTED]
> Subject: / MR2 power steering pump / on ebay
>
> I've been working on the power steering for the nission 300zx all this
> weekend , and am finding that its taking a lot more power than I had
> though
> when you trun the steering wheel . I picked a motor that I though was
> rated
> about 1 1/2 hp 32v I ( looked like a better pick that the tread mill
> motor i
> also have) started with 3 to 1 ratio , now a 5 to 1 and still when the
> steering wheel is being trunned it slows the motor down to almost a stop
> ,
> I'm running it on 36v and am seeing 50 amp under load , so I'm looking
> at
> your e bay pump. any idea of the amps it needs to run on , at 12v this
> could
> be a lot .
> Steve Clunn
>
>
> ----- Original Message -----
> From: "August Johnson" <[EMAIL PROTECTED]>
> To: <[EMAIL PROTECTED]>
> Sent: Sunday, November 07, 2004 7:22 PM
> Subject: Selling Toyota MR2 power steering pump on ebay
>
>
> > I'm selling the MR2 power steering pump that I bought a couple years
> > ago. I bought it because I was going to build and EV, instead I bought
> > Otmar's Sprint. It's listed as # 7933330981 on ebay.
> >
> > August Johnson
> >
>
--- End Message ---
--- Begin Message ---
At 07:33 PM 8/11/04 -0800, Dave Cover wrote:
I had heard about using treadmill motors <snip>There are three wires; one
green labeled ground, one red wire labeled "(+) (A-1)" and one
black wire labeled "(-) (A-2)." Here's more info from the label.
Ground just goes to the frame. It should be a permanent magnet (field)
motor. + and - are nominal for the preferred direction of rotation (it will
run backwards with reverse connection, but the brushes may be timed for one
direction only).
HP: 1.75
Should be the continuous HP rating, at 4950RPM and 100V. Note that this is
the out put horsepower, 1.3kW, the power consumed is (18.7 amps x 100V)
1.87kW, making this motor only around 70% efficient.
RPM: 4950
Loaded speed
Duty: CONT
Continuous rated (at 1.75hp, etc)
V.ARM: 100
100 Volts DC for the armature (needed to achieve full power and RPM)
A.ARM: 18.7
Armature will be drawing 18.7 amps at 100V at 4950RPM.
CLASS INSULATION: F
Not certain, maybe 130 degree C insulation. Lee Hart can probably quote
this from memory.
40 C AMBIENT
To meet the continuous spec, ambient temperature needs to be below 40 Celcius.
ENCL: OFC
Enclosure: open frame construction (no protection against water, insects etc.)
MODEL: 4620D-15
DATE CODE: BT03
CUSTOMER P/N: 12-0002
FF: 1.0
S/N: 25721
Means nothing that you can't measure from the motor, except to the
manufacturer perhaps.
The motor housing measures a skinny 8 and one eigth inches long by 4.5
inches in diameter. The
shaft come out both ends of the motor but only one end is slotted with a
keyway. Does any
recognize the motor? Is it a keeper?
Yes, motor or generator a useful item.
Since my lawn tractor has a hydrostatic drive and the implements are
driven off the same pulley, I was thinking I could replace the ICE with
the electric motor and use it the same way. Set the
motor to run at a certain RPM and drive.
The speed will vary with load, but not as much as a series motor, more like
a shunt motor. However, it is designed to rev fast, and have fairly high
voltages applied, which it needs to develop the horsepower without burning up.
Hopefully I could use this for both mowing and
snowblowing. Am I asking too much from this motor? What kind of controller
do I need? I'm sure I
could fit 4 to 6 batteries on the tractor if I needed to. I'd like to get
about 2 to 4 hours
running time for mowing. If this is feasible, I may be working on two EVs
this winter instead of
one.
Any opinions out there?
A 96V ride-on mower. batteries, controller... um, maybe a 24V/36V/48V/96V
contactor controller with the batteries in series/paralell combinations?
Simple and conventional (even though someone convinced the US patent office
to give them a patent on one). It would work, but how well? Expect some
input from EV mower owners on how many HP is needed.
Thanks
Dave Cover
The nameplate information is fact, the rest is just my $0.02 worth..
James Massey,
Launceston, Tasmania, Australia.
--- End Message ---
--- Begin Message ---
Hi Jeff and All,
--- [EMAIL PROTECTED] wrote:
> Hello,
> Does anyone have any experience with the use of
> electric series wound
> forklift motors to power an EV? I know it has been
> done, but knot
> fully aware of the outcome.
Not much different than other EV motors other than
some of them are very low RPM like 1200. This is an
asset as you need a lower final drive and can easily
be increased by upping the batt pack voltage to double
at least.
They also usually are designed to take heavier
amps like 150-200 cont.
How high voltage can you go with an 36vdc motor
safely? At least twice and maybe 3 times for a low rpm
rated motor.
Surplus Center has one for about $339 that would
do well.
They also have a 5hp, Sep-excited, shunt motor
without an end bearing for $139.95, at 48vdc, 67 amps
, 2300 rpm for NEV's but probably need 2 of them for
direct drive like mine.
They do regen when set up right though. Low
starting torque.
> I would like to also know about the practice of
> using higher voltages
> on a 36 volt motor and what this does to the amp
> draw, etc.
Amp draw is how much you load it!!! Gear it so it
doesn't overload and you are safe. Basicly it needs to
run at it's rated amps or less at the speeds you need
to go on the flat, no wind. I like a 25% margin for
hills, ect at least.
If uses more, them change your gearing to a higher
number, less top speed until the amps are under rated
levels on the flat, no wind.
> I've seen ADC 36 volt rated motors being run on
> higher voltages.
> One of the motors I have is a GE 5.5 hp 36volt
> motor. Thinking of
> running it at 48 volts or so, in a lightweight 3
> wheeler.
> Any thoughts?
I've been doing that for yrs with a 36vdc, 100amp
Ge motor from a Citi-car. I get 45 mph, 3300RPM, from
36vdc and 55-60 mph from 48vdc at about 1200 lbs
loaded weight.
But this is the very low end to keep up with
traffic but only costs $.01/mile for electricity and
get under 100watt-hr/mile at 45 mph.
You are smart for going to a lower weight EV as it
keeps the total costs down and range, speed up even if
it's more work at first.
HTH's,
jerry dycus
> Thanks,
> Jeff
>
>
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