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Today's Topics:
1. Re: Another EV in the news (Roland Wiench)
2. Re: Frames and Chassis (Lee Hart)
3. Re: GM EV Commercial Heard (Lee Hart)
4. Re: New Low Cost... flying car (Lee Hart)
5. Re: Overdiven 10hp AC (Lee Hart)
6. Re: GM EV Commercial Heard (Marty Hewes)
7. Re: Check out my Blog on EVWorld.com (storm connors)
8. Re: Another EV in the news (Dave Stensland)
9. Re: Modified K&W BC-20 questions (primary input leads)
(Hunter Cook)
10. Silent vehicles, was Re: Sensors at drive throughs
([EMAIL PROTECTED])
11. Re: Silent vehicles, was Re: Sensors at drive throughs (JS)
12. Re: Another EV in the news (David Roden)
13. Re: Another EV in the news (TrotFox Greyfoot)
14. Re: Another EV in the news (Ben)
15. Re: Silent vehicles, was Re: Sensors at drive throughs
(David Roden)
16. Re: Group 31 battery size (Bill & Nancy)
17. Re: Silent vehicles, was Re: Sensors at drive throughs
(George Swartz)
18. Re: Silent vehicles, was Re: Sensors at drive throughs
(Marty Hewes)
19. Re: Silent vehicles, was Re: Sensors at drive throughs
([EMAIL PROTECTED])
20. Re: Silent vehicles, was Re: Sensors at drive throughs
(TrotFox Greyfoot)
21. LED driver that runs off of 12V (Rod Hower)
22. Re: Modified K&W BC-20 questions (primary input leads)
(Roland Wiench)
23. Request for ev links for SSI-Racing.com was RE: 2SSIC Race
Report Sep 23 (Michael T Kadie)
24. Re: Silent vehicles, was Re: Sensors at drive throughs
(Marty Hewes)
25. Re: Silent vehicles, was Re: Sensors at drive throughs
(Andre' Blanchard)
26. Re: LED driver that runs off of 12V (Lee Hart)
27. Re: Silent vehicles, was Re: Sensors at drive throughs
(Paul Compton)
----------------------------------------------------------------------
Message: 1
Date: Thu, 4 Oct 2007 08:47:24 -0600
From: "Roland Wiench" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Another EV in the news
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="iso-8859-1"
What would the range be at 50% DOD and at 60 mph? I could claim my EV can
do 167 miles at 100% DOD which would be all non-stop city driving at about
20 mph. Actual range of my EV at 60 mph is 39.5 miles at 50% DOD.
Roland
----- Original Message -----
From: "Ben" <[EMAIL PROTECTED]>
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Sent: Thursday, October 04, 2007 7:09 AM
Subject: [EVDL] Another EV in the news
> http://ozarksfirst.com/content/fulltext/?cid=12364
>
> Claims 150 miles on lead acid. Just jam-packed full of batteries? I
> haven't had time to watch the video yet, but it sounds like he's done
> something fancier than the usual conversion. Maybe the experts can
> weigh in on this.
>
> Ben
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
------------------------------
Message: 2
Date: Thu, 04 Oct 2007 08:32:40 -0500
From: Lee Hart <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Frames and Chassis
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Timothy Balcer wrote:
> Building a car from scratch is a lot of effort. That being said, I'm
> sure it can be rewarding! :-) Look around online for plans to build
> light EVs. I like R.Q. Riley's XR3 meself,
>
> http://www.rqriley.com/
>
> It has an EV option in the plans, FYI.
While the R.Q. Riley vehicles are simple, they are also very tedious to
build. Out of perhaps 40,000 sets of plans sold, very few cars have ever
been finished. You may want to talk to Jerry Dycus <[EMAIL PROTECTED]> for
ideas on techniques that are far less labor-intensive.
--
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: 3
Date: Thu, 04 Oct 2007 08:44:23 -0500
From: Lee Hart <[EMAIL PROTECTED]>
Subject: Re: [EVDL] GM EV Commercial Heard
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>> There is no product to advertize. They don't even have fully
>> functional prototypes. They have no way of knowing for sure
>> whether they can deliver the claimed range and performance
>> characteristics.
Dale Ulan wrote:
> Likely, they can predict the range and performance characteristics
> very well.
You don't need to "predict" the performance of vaporware. You just make
it up as you go along!
GM is using a tried-and-true marketing trick with the Volt. They are
deathly afraid of Edsel syndrome (building something that won't sell).
So, they mock up a concept car, and haul it to all the car shows and
media events to see what people say. They will keep changing the claims,
and see what effect it has on the comments they get. It is far easier to
add or remove features that are nothing but talk or words on a page than
it is to actually build them and get them to work!
Once they have a clear picture of whether the idea actually interests
people, and what features it must have to sell, THEN they go off and try
to design a car that meets them. Of course, the resulting car won't
resemble the theoretical show car very much. But by then people will
have forgotten the original claims anyway.
--
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: 4
Date: Thu, 04 Oct 2007 09:37:49 -0500
From: Lee Hart <[EMAIL PROTECTED]>
Subject: Re: [EVDL] New Low Cost... flying car
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
R Patterson wrote:
> Now with some super conducting field coils, a cryogenic cooled rotor,
> light weight motor housing, and some yet to be developed weightless
> batteries [or better yet a portable fusion generator (fusor)] we could
> have an awesome aero-EV.
This is why one of my favorite aphorisms is that the Perfect is the
enemy of the Good.
Nothing is perfect. When someone promises you a perfect solution, look
out for the sales pitch! All he has is a perfect way to extract money
from your wallet!
The irresistible lure for perfection can be a good thing -- it is
hopeful, optimistic; it excites and inspires us, and drives us forward.
But, it also has a dark side. People will ignore perfectly good
solutions today, and instead throw their time and money away in the
pursuit of perfection in some vague tomorrow. They wind up with nothing;
neither the good solution, nor the perfect one.
This is how I see EVs. Most people do nothing but wait for someone else
to develop the perfect solution -- it never comes, of course. Some think
they can get rich by investing in the "perfect" battery or motor or
whatever -- but their money will just be squandered and lost to people
who are big on promises but weak on results.
Real EVs will come from a third group; the tiny minority that puts their
time and money into *good* solutions -- the ones we already have today,
that we can actually buy and put to work right now. They aren't perfect;
but they're better than nothing! More importantly, investments in good
solutions really *do* move the field forward. They get EVs on the road,
they encourage pioneers to keep exploring, and they finance new
businesses to produce more.
--
There's a cartoon that shows a city street full of people. All of them
have a stick taped to their back that arches forward over their heads. A
carrot is hanging from each stick, just out of their reach. Everyone is
madly racing forward, trying to reach their own personal carrot. Except
one man, who is peeing on the carrot.
--
Lee A. Hart, 814 8th Ave N, Sartell MN 56377, leeahart_at_earthlink.net
------------------------------
Message: 5
Date: Thu, 04 Oct 2007 09:58:28 -0500
From: Lee Hart <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Overdiven 10hp AC
To: [EMAIL PROTECTED], Electric Vehicle Discussion List
<ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>> Electric motors have a certain horsepower per pound. It isn't
>> really affected by AC vs. DC, but rather the basic physics
>> involved. Assuming you're using the same copper wire, iron
>> laminations, bearings, magnets, etc. then either an AC or DC motor
>> will have the same performance characteristics
Peter VanDerWal wrote:
> Hold on, that isn't true, at least not as you've expressed it. I've
> seen 10hp motors that weight less than 10 lbs and others that weigh
> over 200 lbs.
>
> Increasing the RPM of a motor allows it to produce more power for the
> same weight.
>
> I can see a relationship between torque and weight, but I don't see
> it between power and weight.
My answer assumed the usual "all things being equal..." proviso. Sorry;
I should have stated that explicitly.
A motor is basically a transformer. Instead of electrical power in,
electrical power out; it is electrical power in, mechanical power out.
The more power you cram in, the more power you get out. The only real
limits are thermal -- how *long* can you get a given amount of power
before it overheats. So, to compare motors, you need to also specify for
how *long* they can develop that power level. "Continuous duty" ratings
are common. EV-duty motors are often rated at the 1-hour rating. Extreme
cooling measures, or extremely short on-times will allow extremely high
power-to-weight ratios on any motor.
The next issue is materials. At some magnetic flux density, the iron
saturates and little useful increases in torque will be produced above
that point. You can change the magnetic material to improve performance;
but any material can be used in any motor to get the same ultimate limit.
Likewise, you can change the electrical conductors. Copper is almost
universally used. Aluminum appears in some cheap motors. Silver is the
better, but very rarely used due to cost. Superconducting coils are
possible, but now you're *really* getting exotic.
Finally, transformers only work on AC. The same is true for motors; all
practical designs are AC motors. The power-to-weight ratio for a
transformer or motor is directly related to frequency -- the higher the
frequency (RPM), the higher the power. In motors, this becomes a
strength of materials issue; is your extremely good magnetic material
also extremely strong mechanically?
People like to say that the commutator in a DC motor limits its maximum
RPM. That is true for traditional commutators that are built for low-RPM
motors. But there are also designs for 10,000 RPM and even 100,000 RPM
commutators. They just aren't normally used in cheap motors.
The key point is not to look at the limitations of a particular motor,
and assume that they apply to *all* versions of that motor.
--
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: 6
Date: Thu, 4 Oct 2007 10:27:19 -0500
From: "Marty Hewes" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] GM EV Commercial Heard
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
This isn't unique to the auto industry. I see the same thing at the
Consumer Electronics show in Vegas, the Housewares show in Chicago, even the
international Electronics show in Hong Kong. A large percentage of the
newest products you see there are mockups or prototypes, which they may or
may not admit. A lot of that stuff you see in AliBaba won't ever finish
development if they don't get a large order. If they don't see enough
interest, production never happens. If they hear a lot of "if it could do
this then I'd buy", then specs and features change. It's a fine line
between fraud and market research. Some companies I work with will not go
to production unless they bag a Walmart deal and see orders for 10,000
pieces, some will speculate a bit more. But competition has driven many
companies to take fewer risks, if they can.
Marty
----- Original Message -----
From: "Lee Hart" <[EMAIL PROTECTED]>
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Sent: Thursday, October 04, 2007 8:44 AM
Subject: Re: [EVDL] GM EV Commercial Heard
>>> There is no product to advertize. They don't even have fully
>>> functional prototypes. They have no way of knowing for sure
>>> whether they can deliver the claimed range and performance
>>> characteristics.
>
> Dale Ulan wrote:
>> Likely, they can predict the range and performance characteristics
>> very well.
>
> You don't need to "predict" the performance of vaporware. You just make
> it up as you go along!
>
> GM is using a tried-and-true marketing trick with the Volt. They are
> deathly afraid of Edsel syndrome (building something that won't sell).
> So, they mock up a concept car, and haul it to all the car shows and
> media events to see what people say. They will keep changing the claims,
> and see what effect it has on the comments they get. It is far easier to
> add or remove features that are nothing but talk or words on a page than
> it is to actually build them and get them to work!
>
> Once they have a clear picture of whether the idea actually interests
> people, and what features it must have to sell, THEN they go off and try
> to design a car that meets them. Of course, the resulting car won't
> resemble the theoretical show car very much. But by then people will
> have forgotten the original claims anyway.
>
> --
> 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
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
------------------------------
Message: 7
Date: Thu, 4 Oct 2007 11:58:43 -0400
From: "storm connors" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Check out my Blog on EVWorld.com
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1
Interesting thoughts. I never thought about how my EV used roller coaster
technique to save energy- but it does. And watch out for over revving when
going down hill.
On 10/4/07, Joseph Lado <[EMAIL PROTECTED]> wrote:
>
> The LUV Rollercoaster EV
>
>
> http://www.evworld.com/blogs/index.cfm?page=blogentry&authorid=46&blogid=523&archive=0
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
--
http://www.austinev.org/evalbum/1059
http://stormselectric.blogspot.com/
Storm
------------------------------
Message: 8
Date: Thu, 04 Oct 2007 11:58:02 -0400
From: Dave Stensland <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Another EV in the news
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Here's a another article about it with more photos...
http://tinyurl.com/39h6l9
-Dave
http://www.megawattmotorworks.com
Ben wrote:
> http://ozarksfirst.com/content/fulltext/?cid=12364
>
> Claims 150 miles on lead acid. Just jam-packed full of batteries? I
> haven't had time to watch the video yet, but it sounds like he's done
> something fancier than the usual conversion. Maybe the experts can
> weigh in on this.
>
> Ben
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
>
------------------------------
Message: 9
Date: Thu, 04 Oct 2007 10:58:23 -0500
From: Hunter Cook <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Modified K&W BC-20 questions (primary input
leads)
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain
Thanks for the advice, Roland.
I don't think it's that serious...the transformer looks like it's fine
to me. The burns are just on the input terminal, which I'm thinking I
should be able to replace independent of the transformer. I don't know
if it's glued on or what...it's on there tight. Figure I'll drop by
radioshack today and see if they've got something similar.
I put some pictures of it up in case you or anybody else wants to have a
look: http://www.fivepointchilidog.com
Thanks
Hunter
On Wed, 2007-10-03 at 12:40 -0600, Roland Wiench wrote:
>
>
> ----- Original Message -----
> From: "Hunter Cook" <[EMAIL PROTECTED]>
> To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
> Sent: Wednesday, October 03, 2007 9:49 AM
> Subject: Re: [EVDL] Modified K&W BC-20 questions
>
>
> > Roland-
> >
> > Very interesting history there...basically just shows that for at least
> > the last 30 years you've been a lot harder core than me. Not that any
> > more proof was necessary ;-)
> >
> > My batteries do not look "super clean." I suppose it's time I tested for
> > leakage. But the first thing on my mind today is what to do about my
> > burned up primary input connections on the boost transformer.
> >
> > Thanks again for all your help,
> >
> > Hunter
>
> Hello Hunter,
>
> If the primary input leads go's directly into the transformer windings and
> the insulation is brittle or gone, you could remove the transformer and take
> it to a motor shop. It may be as simple as re-enameling the core, if the
> transformer test out ok.
>
> If the transformer is a one winding core, then they have a winding machine
> that counts the number of windings as it is remove from the core, and than
> winds new wire on the core. Takes less than 30 minutes to do.
>
> If the leads terminate to a bolt in transformer tab, then you can replace
> these leads with some good high temperature motor leads, that I normally get
> from a motor shop. This type of wire is fine multi strand wire. A No 10 AWG
> may be 52 strand with a 105 C rating or more.
>
> Use a non-insulated solid wire terminal and heat shrink. Sometimes, I had
> transformers or motor leads insulation burn off, and I was able to insulated
> with a 3M high temperature glass tape by wrapping the wire twice half
> lapping the tape. This makes four layers.
>
> If the lead wire has no terminal points and the copper wire itself looks
> brittle, sometimes I could cut the wires leaving about 1 inch from the
> windings and use a non-insulated solid wire inline splice to a flexible
> motor lead wire and heat shrink and glass wrap that connection.
>
> I also spray all these transformer connections with motor enamel spray you
> can also get from a motor shop. Its not the bake on type.
>
> If you ever brake down a DC brush type motor, which I do about every ten
> years, for cleaning, inspecting or replacing the brushes, I use this spray
> on motor enamel to recoat all the field windings, the front of the
> commentator down to the motor shaft and the motor shaft up to the bearing
> surfaces.
>
> When a motor is brand new and never been run, I record the ohm values of the
> motor terminals to the motor frame which should read over 20 meg ohms. The
> commentator windings to the field windings (with the jumpers remove, should
> also read over 20 meg ohms.
>
> As time goes on, the brush dust inside the motor will increase the
> conductance and it may get down to 50 k ohms or less which you may get arc
> over. The its time to clean the motor. Enameling these areas on the
> commentator and motor shaft has increase resistance which allow the motor to
> go over 15 years with no brush replacements.
>
> Roland
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
------------------------------
Message: 10
Date: Thu, 04 Oct 2007 12:27:28 -0400
From: [EMAIL PROTECTED]
Subject: [EVDL] Silent vehicles, was Re: Sensors at drive throughs
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
[EMAIL PROTECTED] wrote:
> I've seen some discussion as to whether electric / hybrid cars need
> some form of noise-maker for urban environments where pedestrians are
> used to being able to hear traffic, including the visually impaired.
>
> I've been toying with the idea of outfitting my (future) EV with
> speakers. And some soundtracks. Like hoof beats. Sleigh bells.
> Tie Fighters. I suppose dog panting might be taken amiss. X-34
> Landspeeder. Etc., etc.
I must have reasonably good karma, because just after I posted this the
AP did an article on the National Federation for the Blind pushing for
minimum noise standards for cars:
http://money.aol.com/news/articles/_a/blind-people-hybrid-cars-pose-hazard/n20071003012309990002
or
http://tinyurl.com/yvr84q
------------------------------
Message: 11
Date: Thu, 04 Oct 2007 09:36:54 -0700
From: JS <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Silent vehicles, was Re: Sensors at drive
throughs
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
You wrote:
>
> I must have reasonably good karma, because just after I posted this the
> AP did an article on the National Federation for the Blind pushing for
> minimum noise standards for cars:
>
> http://money.aol.com/news/articles/_a/blind-people-hybrid-cars-pose-hazard/n20071003012309990002
>
> or
>
> http://tinyurl.com/yvr84q
----------------------------
Next is minimum noise standards for my four electric bicycles.
'Deaf Like Me', maybe we should sue for 120 DB minimums,
we are handicapped too!
John, skeptic in Sylmar CA
PV EV
------------------------------
Message: 12
Date: Thu, 04 Oct 2007 12:39:37 -0400
From: "David Roden" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Another EV in the news
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=US-ASCII
On 4 Oct 2007 at 11:58, Dave Stensland wrote:
> Here's a another article about it with more photos...
> http://tinyurl.com/39h6l9
This statement, "'In order to get a patent on something like this, we had to
make the government happy about the road tax,' Luedtke said," sets off my BS
detector. Last I heard, that wasn't a qualification for granting a patent.
Also, it might be the photo, but I think those battery interconnects look a
little light for a Caravan at 96 volts.
I'm not sure that pieces like this in the media do much for the EV cause.
David Roden - Akron, Ohio, USA
EVDL Administrator
= = = = = = = = = = = = = = = = = = = = = = = = = = = = =
EVDL Information: http://www.evdl.org/help/
= = = = = = = = = = = = = = = = = = = = = = = = = = = = =
Note: mail sent to "evpost" or "etpost" addresses will not
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email address from the webpage http://www.evdl.org/help/ .
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------------------------------
Message: 13
Date: Thu, 4 Oct 2007 12:47:34 -0400
From: "TrotFox Greyfoot" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Another EV in the news
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1
Add to your skepticism the question of it's range when reading the two
articles. This is really picking a nit but the second article gently
contradicts itself when it claims that the pictures batts can deliver
600 miles of range and that it would require Li-Ion bats for the same
range.
The first article claims 500 on Li-Ions?
I'm just sayin'...
Trot, the semi-detailed, fox...
On 10/4/07, David Roden <[EMAIL PROTECTED]> wrote:
> On 4 Oct 2007 at 11:58, Dave Stensland wrote:
>
> > Here's a another article about it with more photos...
> > http://tinyurl.com/39h6l9
>
> This statement, "'In order to get a patent on something like this, we had to
> make the government happy about the road tax,' Luedtke said," sets off my BS
> detector. Last I heard, that wasn't a qualification for granting a patent.
>
> Also, it might be the photo, but I think those battery interconnects look a
> little light for a Caravan at 96 volts.
>
> I'm not sure that pieces like this in the media do much for the EV cause.
>
> 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
>
--
| /\_/\ TrotFox \ Always remember,
| ( o o ) AKA Landon Solomon \ "There is a
| >\_/< [EMAIL PROTECTED] \ third alternative."
------------------------------
Message: 14
Date: Thu, 4 Oct 2007 12:53:53 -0400
From: Ben <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Another EV in the news
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset=UTF-8
Yeah, the whole thing is full of wild claims and suspiciously
contradictory information.
Has anyone found this patent he claims to have? Be interesting to see
some details on the "revolutionary" propulsion system, and how it's
better than simply direct drive with a motor.
I'll try to search around this afternoon.
On 10/4/07, TrotFox Greyfoot <[EMAIL PROTECTED]> wrote:
> Add to your skepticism the question of it's range when reading the two
> articles. This is really picking a nit but the second article gently
> contradicts itself when it claims that the pictures batts can deliver
> 600 miles of range and that it would require Li-Ion bats for the same
> range.
>
> The first article claims 500 on Li-Ions?
>
> I'm just sayin'...
>
> Trot, the semi-detailed, fox...
>
> On 10/4/07, David Roden <[EMAIL PROTECTED]> wrote:
> > On 4 Oct 2007 at 11:58, Dave Stensland wrote:
> >
> > > Here's a another article about it with more photos...
> > > http://tinyurl.com/39h6l9
> >
> > This statement, "'In order to get a patent on something like this, we had to
> > make the government happy about the road tax,' Luedtke said," sets off my BS
> > detector. Last I heard, that wasn't a qualification for granting a patent.
> >
> > Also, it might be the photo, but I think those battery interconnects look a
> > little light for a Caravan at 96 volts.
> >
> > I'm not sure that pieces like this in the media do much for the EV cause.
> >
> > 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
> >
>
>
> --
> | /\_/\ TrotFox \ Always remember,
> | ( o o ) AKA Landon Solomon \ "There is a
> | >\_/< [EMAIL PROTECTED] \ third alternative."
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
------------------------------
Message: 15
Date: Thu, 04 Oct 2007 13:09:59 -0400
From: "David Roden" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Silent vehicles, was Re: Sensors at drive
throughs
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=US-ASCII
On 4 Oct 2007 at 12:27, [EMAIL PROTECTED] wrote:
> National Federation for the Blind [is] pushing for
> minimum noise standards for cars
Nuts. Noise is pollution. That's like advocating minimum CO and HC
emissions for ICEs, IMO.
Maybe we should start a group to lobby for MAXIMUM noise standards for cars.
Define them so that only EVs can meet them.
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/ .
= = = = = = = = = = = = = = = = = = = = = = = = = = = = =
------------------------------
Message: 16
Date: Thu, 04 Oct 2007 10:21:35 -0700
From: Bill & Nancy <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Group 31 battery size
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Group 31 battery size: 13 x 6 13/18 x 9 7/16.
Bill
------------------------------
Message: 17
Date: Thu, 4 Oct 2007 10:21:11 -0700
From: "George Swartz" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Silent vehicles, was Re: Sensors at drive
throughs
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=iso-8859-1
David, I have seen people walk in front of EV's in parking lots because the
cars are so quiet. So, there is an actual problem.
On Thu, 04 Oct 2007 13:09:59 -0400, David Roden wrote
> On 4 Oct 2007 at 12:27, [EMAIL PROTECTED] wrote:
>
> > National Federation for the Blind [is] pushing for
> > minimum noise standards for cars
>
> Nuts. Noise is pollution. That's like advocating minimum CO and HC
> emissions for ICEs, IMO.
>
> Maybe we should start a group to lobby for MAXIMUM noise standards
> for cars. Define them so that only EVs can meet them.
>
> 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
------------------------------
Message: 18
Date: Thu, 4 Oct 2007 12:28:50 -0500
From: "Marty Hewes" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Silent vehicles, was Re: Sensors at drive
throughs
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
OK, I know I'm off topic, but how about a nice noiseless EV Harley. I'm
really tired of those guys yanking the baffles and making enough miserable
beer fart noises to wake the dead. Why don't they get busted for noise
pollution? I never got away with making that much noise in my hot rod
Chevies. I suspect it's because most cops own Harleys. Of course the
average Harley rider would never ride a silent Harley, it wouldn't be
obnoxious enough, and vibrate enough, to make up for their E.D.
Now a strobe on an EV when driven in the city I could see.
Marty
----- Original Message -----
From: "David Roden" <[EMAIL PROTECTED]>
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Sent: Thursday, October 04, 2007 12:09 PM
Subject: Re: [EVDL] Silent vehicles, was Re: Sensors at drive throughs
> On 4 Oct 2007 at 12:27, [EMAIL PROTECTED] wrote:
>
>> National Federation for the Blind [is] pushing for
>> minimum noise standards for cars
>
> Nuts. Noise is pollution. That's like advocating minimum CO and HC
> emissions for ICEs, IMO.
>
> Maybe we should start a group to lobby for MAXIMUM noise standards for
> cars.
> Define them so that only EVs can meet them.
>
> 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
>
>
------------------------------
Message: 19
Date: Thu, 04 Oct 2007 13:53:12 -0400
From: [EMAIL PROTECTED]
Subject: Re: [EVDL] Silent vehicles, was Re: Sensors at drive
throughs
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Marty Hewes wrote:
> Now a strobe on an EV when driven in the city I could see.
Will no one think of the epileptics?
(Apologies to any actual epileptics on the list.)
------------------------------
Message: 20
Date: Thu, 4 Oct 2007 13:58:24 -0400
From: "TrotFox Greyfoot" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Silent vehicles, was Re: Sensors at drive throughs
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset=ISO-8859-1
Do you ride?
Awful nice to know that the person you're passing can tell you're
there. Otherwise they're likely to miss your smaller than usual self
and attempt to move into your lane, possibly without signaling and
possibly quickly! This is one reason motorcycles are frequently
noisy... same reason the blind folks want noisemakers installed on
hybrids and EVs.
It's not something that makes me happy, mind, but I do understand
where these people are coming from. No, I do not ride and have never
owned a motorcycle but I roomed with a guy that did once. He
frequently came home with stories of people nearly running him off the
road or squeezing him into another vehicle as they changed lanes. He
said he was very tempted to kick some door panels when that happened.
He rode an import sport-bike that was not quiet but did have
mufflers...
Personally, I could see some variety of beeper for when the vehicle is
doing less than ~20 MPH. Above that people aren't going to be able to
dodge you too well anyway. ; ] A strobe does the blind no good.
Trot, the sympathetic, fox...
On 10/4/07, Marty Hewes <[EMAIL PROTECTED]> wrote:
> OK, I know I'm off topic, but how about a nice noiseless EV Harley. I'm
> really tired of those guys yanking the baffles and making enough miserable
> beer fart noises to wake the dead. Why don't they get busted for noise
> pollution? I never got away with making that much noise in my hot rod
> Chevies. I suspect it's because most cops own Harleys. Of course the
> average Harley rider would never ride a silent Harley, it wouldn't be
> obnoxious enough, and vibrate enough, to make up for their E.D.
>
> Now a strobe on an EV when driven in the city I could see.
>
> Marty
--
| /\_/\ TrotFox \ Always remember,
| ( o o ) AKA Landon Solomon \ "There is a
| >\_/< [EMAIL PROTECTED] \ third alternative."
------------------------------
Message: 21
Date: Thu, 4 Oct 2007 11:00:17 -0700 (PDT)
From: Rod Hower <[EMAIL PROTECTED]>
Subject: [EVDL] LED driver that runs off of 12V
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset=iso-8859-1
Thought somebody might want to roll their own,,,
http://electronicdesign.com/Articles/ArticleID/16763/16763.html
http://electronicdesign.com/files/29/16763/Figure_01.jpg
------------------------------
Message: 22
Date: Thu, 4 Oct 2007 12:32:10 -0600
From: "Roland Wiench" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Modified K&W BC-20 questions (primary input
leads)
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="iso-8859-1"
When wire connections are burn like this, this is normally cause by a loose
connections and/or the terminals were connected up with out cleaning the a
dull tarnish surface that may be on the transformers connections which
causes a higher resistance.
It is best to use a torque wrench on these type of connections. Normally a
1/2 grade 5 bolt takes 50 ftlbs, a 3/8 at 35 ftlbs and a 5/16 at about 25
ftlbs if it's a straight through bolt with a nut. If it's a set screw type
of terminal, then your manual should tell you want the torque should be.
If this terminals are a solder on connection or the connection was compress
incorrectly by using only one point type crimp, then I would cut off these
terminal lugs and have new heavy duty tin plated copper terminal lugs crimp
on.
NAPA auto stores sell very heavy duty spec grade un-insulated wire terminals
that they keep in the back shelf's. I got 100 each 2/0 size wire terminals
for about $2.50 each. They may have two or three crimping guild lines that
is mark on the barrel. If there is two guild lines, then you crimp first
next to the cable and then the second crimp next to the bolt hole. If you
crimp next to the bolt hole section first, then the cable may push out some.
If it's has three guild lines, then crimp in the center guild line first,
the second by the wire and third at the bolt hole section.
The NAPA auto store, I go to can either crimp the wire terminals on the
cables which may be a hydraulic crimper, or you can rent a hand crimper from
them. Make sure you slip on the heavy duty heat shrink that has a sealent
in it first before you install the terminal.
It looks like there are un-plated thin copper wire terminals are use on your
battery links. You will have to watch these connections very closely, as
copper to lead will increase in turnish at the contact point which may
increase in resistance. After a while, bright copper will turn dark, to a
green color and then to something looking like white frosted coating. I
would give them a very good cleaning and torque them also.
A very good terminal coating I use, is that tool dip liquid compound make by
LocTite. It should be listed as acid proof and can be use on batteries.
Roland
----- Original Message -----
From: "Hunter Cook" <[EMAIL PROTECTED]>
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Sent: Thursday, October 04, 2007 9:58 AM
Subject: Re: [EVDL] Modified K&W BC-20 questions (primary input leads)
> Thanks for the advice, Roland.
>
> I don't think it's that serious...the transformer looks like it's fine
> to me. The burns are just on the input terminal, which I'm thinking I
> should be able to replace independent of the transformer. I don't know
> if it's glued on or what...it's on there tight. Figure I'll drop by
> radioshack today and see if they've got something similar.
>
> I put some pictures of it up in case you or anybody else wants to have a
> look: http://www.fivepointchilidog.com
>
> Thanks
>
> Hunter
>
> On Wed, 2007-10-03 at 12:40 -0600, Roland Wiench wrote:
> >
> >
> > ----- Original Message -----
> > From: "Hunter Cook" <[EMAIL PROTECTED]>
> > To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
> > Sent: Wednesday, October 03, 2007 9:49 AM
> > Subject: Re: [EVDL] Modified K&W BC-20 questions
> >
> >
> > > Roland-
> > >
> > > Very interesting history there...basically just shows that for at
> > > least
> > > the last 30 years you've been a lot harder core than me. Not that any
> > > more proof was necessary ;-)
> > >
> > > My batteries do not look "super clean." I suppose it's time I tested
> > > for
> > > leakage. But the first thing on my mind today is what to do about my
> > > burned up primary input connections on the boost transformer.
> > >
> > > Thanks again for all your help,
> > >
> > > Hunter
> >
> > Hello Hunter,
> >
> > If the primary input leads go's directly into the transformer windings
> > and
> > the insulation is brittle or gone, you could remove the transformer and
> > take
> > it to a motor shop. It may be as simple as re-enameling the core, if
> > the
> > transformer test out ok.
> >
> > If the transformer is a one winding core, then they have a winding
> > machine
> > that counts the number of windings as it is remove from the core, and
> > than
> > winds new wire on the core. Takes less than 30 minutes to do.
> >
> > If the leads terminate to a bolt in transformer tab, then you can
> > replace
> > these leads with some good high temperature motor leads, that I normally
> > get
> > from a motor shop. This type of wire is fine multi strand wire. A No 10
> > AWG
> > may be 52 strand with a 105 C rating or more.
> >
> > Use a non-insulated solid wire terminal and heat shrink. Sometimes, I
> > had
> > transformers or motor leads insulation burn off, and I was able to
> > insulated
> > with a 3M high temperature glass tape by wrapping the wire twice half
> > lapping the tape. This makes four layers.
> >
> > If the lead wire has no terminal points and the copper wire itself looks
> > brittle, sometimes I could cut the wires leaving about 1 inch from the
> > windings and use a non-insulated solid wire inline splice to a flexible
> > motor lead wire and heat shrink and glass wrap that connection.
> >
> > I also spray all these transformer connections with motor enamel spray
> > you
> > can also get from a motor shop. Its not the bake on type.
> >
> > If you ever brake down a DC brush type motor, which I do about every ten
> > years, for cleaning, inspecting or replacing the brushes, I use this
> > spray
> > on motor enamel to recoat all the field windings, the front of the
> > commentator down to the motor shaft and the motor shaft up to the
> > bearing
> > surfaces.
> >
> > When a motor is brand new and never been run, I record the ohm values of
> > the
> > motor terminals to the motor frame which should read over 20 meg ohms.
> > The
> > commentator windings to the field windings (with the jumpers remove,
> > should
> > also read over 20 meg ohms.
> >
> > As time goes on, the brush dust inside the motor will increase the
> > conductance and it may get down to 50 k ohms or less which you may get
> > arc
> > over. The its time to clean the motor. Enameling these areas on the
> > commentator and motor shaft has increase resistance which allow the
> > motor to
> > go over 15 years with no brush replacements.
> >
> > Roland
> >
> > _______________________________________________
> > For subscription options, see
> > http://lists.sjsu.edu/mailman/listinfo/ev
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
------------------------------
Message: 23
Date: Thu, 4 Oct 2007 11:37:51 -0700
From: "Michael T Kadie" <[EMAIL PROTECTED]>
Subject: [EVDL] Request for ev links for SSI-Racing.com was RE: 2SSIC
Race Report Sep 23
To: "'Electric Vehicle Discussion List'" <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="us-ascii"
Looking forward to racing you Dennis. I plan on doing something special for
the January ElectricDragin.com event :)
I've added a links section to my forum on http://ssi-racing.com and would
like people to post links to their favorite site (including there own).
Have fun,
Michael
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Wednesday, October 03, 2007 2:53 PM
To: ev@lists.sjsu.edu
Subject: Re: [EVDL] 2SSIC Race Report Sep 23
In a message dated 10/3/2007 11:59:17 AM US Mountain Standard Time,
[EMAIL PROTECTED] writes:
> ubj: Re: [EVDL] 2SSIC Race Report Sep 23
> Date:10/3/2007 11:59:17 AM US Mountain Standard Time From:[EMAIL PROTECTED]
> Reply-to:ev@lists.sjsu.edu To:ev@lists.sjsu.edu Received from
> Internet:
>
>
>
> Oh, yeah I guess times and MPH would be good. So when I did a good
> burn out I was doing 7.8x seconds and 86-88 mph in the 1/8 mile. And
> when I didn't do a long burn or after the 3rd run without recharging
> 7.9x and 84 mph
>
> And I should not say the pack gave out, the pack was fine, it has just
> dropped below my conservative shut off voltage of 2 volts / cell
> causing the zilla to disengage (on purpose). Thanks for that Bill, I
> don't want to be mis-representing.
>
> And I've got the packs set up so that they cool down really quick.
> Probably too quick, by the time I can pickup my slip and get back into
> line they are ambient.
>
> Thanks Bill for reminding me about what people might actually want to
> hear about,
>
> Michael
>
> -----Original Message-----
> From: Bill Dube [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, October 03, 2007 9:24 AM
> To: Electric Vehicle Discussion List
> Subject: Re: [EVDL] 2SSIC Race Report Sep 23
>
> What sort of ETs and MPH did you run?
>
> Put a temperature probe on the battery pack to be sure you are not
> getting too hot and damaging the cells. You don't want to start a race at
over 75 C.
> You also don't want to stay at high temperature from very long as the
> cells age rapidly when they are hot.
>
> Also, it is not a good idea to run the pack down to near 100% DOD. At
> this point, it is easy to reverse cells and this can do damage to
> them. If you top up between runs, you won't risk reversing cells.
>
> Bill Dube'
>
> At 09:47 AM 10/3/2007, you wrote:
> >Got Rained out (again, this time in SAN DIEGO) the 21, but 23 was
> >GOOD
> >
> >Well it was great fun and I beat a lot of cars.
> >
> >The work on the brake was brilliant, no problems slowing down. I
> >decided that I didn't want to bother with the wheelie bars though so
> >I kept the power at 65%.
> >
> >I found out that I can get approximate 5 run's in before I need to
> >recharge the batteries (they gave out in the 6th run). I lost a
> >little over 2/10's before they gave out, but still a thrill ride.
> >
> >I also found out that I need to do a longer burnout than I thought;
> >not to warm up the tires, but the batteries. After a longer burnout
> >I launch harder and shave almost 1/10 second off my time. This means
> >that to really go hard I either need to heat up my batteries, or more
> power, or both.
> >
> >Still a whole lot of fun.
> >
> >Oh and while I was working on the lights I got back to back .00
> >reaction times (.005 and .008) whee!
> >
> >KD
These are good times and mph for the 1/8 mile,with your great reaction times
we will be stuck together all the way down the track at the January race.
Dennis Berube/S10
------------------------------
Message: 24
Date: Thu, 4 Oct 2007 13:44:28 -0500
From: "Marty Hewes" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Silent vehicles, was Re: Sensors at drive throughs
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 suppose a strobe doesn't help the blind, but equally, noise wouldn't help
the deaf. Maybe we ought to at least drive with the headlights on, as
required of motorcycles, and make some sound. Regarding the epileptic,
isn't that flash frequency dependant? Messes up brain wave activity at a
particular brain wave frequency? There are certainly a lot of flashing
lights in use already.
Regarding motorcycles, I do ride, a Yamaha Virago 750 and an old Kawasaki
KZ400. Neither makes much noise, at least not like the Harley guys like to
make. Since the risks are generally in front of you, and the exhaust is
pointing back, I don't personally see how making a godawful racket behind
you is a very effective or civilized solution. It has to be pretty loud
before cars ahead of you, with the radio on and the windows up, are going to
hear you coming in time. As far as I care, riding is risky. If riding
defensively with the lights on isn't good enough, don't ride, or only ride
out in the open country. I don't see the risk as being a license to
irritate society, just an excuse. Amuzingly, it's often the bikes with
helmetless riders and inadequate eye protection making the most racket, for
safety? Right. What's wrong with that picture.
Marty
----- Original Message -----
From: "TrotFox Greyfoot" <[EMAIL PROTECTED]>
To: "Electric Vehicle Discussion List" <ev@lists.sjsu.edu>
Sent: Thursday, October 04, 2007 12:58 PM
Subject: Re: [EVDL] Silent vehicles, was Re: Sensors at drive throughs
> Do you ride?
>
> Awful nice to know that the person you're passing can tell you're
> there. Otherwise they're likely to miss your smaller than usual self
> and attempt to move into your lane, possibly without signaling and
> possibly quickly! This is one reason motorcycles are frequently
> noisy... same reason the blind folks want noisemakers installed on
> hybrids and EVs.
>
> It's not something that makes me happy, mind, but I do understand
> where these people are coming from. No, I do not ride and have never
> owned a motorcycle but I roomed with a guy that did once. He
> frequently came home with stories of people nearly running him off the
> road or squeezing him into another vehicle as they changed lanes. He
> said he was very tempted to kick some door panels when that happened.
> He rode an import sport-bike that was not quiet but did have
> mufflers...
>
> Personally, I could see some variety of beeper for when the vehicle is
> doing less than ~20 MPH. Above that people aren't going to be able to
> dodge you too well anyway. ; ] A strobe does the blind no good.
>
> Trot, the sympathetic, fox...
>
> On 10/4/07, Marty Hewes <[EMAIL PROTECTED]> wrote:
>> OK, I know I'm off topic, but how about a nice noiseless EV Harley. I'm
>> really tired of those guys yanking the baffles and making enough
>> miserable
>> beer fart noises to wake the dead. Why don't they get busted for noise
>> pollution? I never got away with making that much noise in my hot rod
>> Chevies. I suspect it's because most cops own Harleys. Of course the
>> average Harley rider would never ride a silent Harley, it wouldn't be
>> obnoxious enough, and vibrate enough, to make up for their E.D.
>>
>> Now a strobe on an EV when driven in the city I could see.
>>
>> Marty
>
>
> --
> | /\_/\ TrotFox \ Always remember,
> | ( o o ) AKA Landon Solomon \ "There is a
> | >\_/< [EMAIL PROTECTED] \ third alternative."
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
>
------------------------------
Message: 25
Date: Thu, 04 Oct 2007 12:55:56 -0500
From: "Andre' Blanchard" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Silent vehicles, was Re: Sensors at drive
throughs
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID: <[EMAIL PROTECTED]>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 12:28 PM 10/4/2007, you wrote:
>OK, I know I'm off topic, but how about a nice noiseless EV Harley. I'm
>really tired of those guys yanking the baffles and making enough miserable
>beer fart noises to wake the dead. Why don't they get busted for noise
>pollution? I never got away with making that much noise in my hot rod
>Chevies. I suspect it's because most cops own Harleys. Of course the
>average Harley rider would never ride a silent Harley, it wouldn't be
>obnoxious enough, and vibrate enough, to make up for their E.D.
>
>Now a strobe on an EV when driven in the city I could see.
>
>Marty
http://www.epilepsyfoundation.org/answerplace/Medical/seizures/precipitants/photosensitivity/photosensitivity.cfm
__________
Andre' B. Clear Lake, Wi.
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Message: 26
Date: Thu, 4 Oct 2007 14:54:43 -0400 (EDT)
From: Lee Hart <[EMAIL PROTECTED]>
Subject: Re: [EVDL] LED driver that runs off of 12V
To: Electric Vehicle Discussion List <ev@lists.sjsu.edu>
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset=UTF-8
From: Rod Hower
> Thought somebody might want to roll their own,,,
> http://electronicdesign.com/Articles/ArticleID/16763/16763.html
It always amazes me how complicated they can make driving an LED.
This circuit uses dozens of parts and ICs to drive some 3.6v LEDs from a 12v
battery. A plain old resistor for each three LEDs in series also does the job
nicely. The resistor will drop 12v - (3 x 3.6v) = 1.2v which means the overall
circuit is 90% efficient -- higher than this switching regulator circuit. It
automatically draws no current if the battery goes dead because the LEDs stop
conducting.
Yes, the light output varies with battery voltage; but how often is that a
problem. Car tail lights also vary as the car's electrical system wanders
around 12-14v. An ordinary 3v flashlight bulb could be used as the series
resistor as a crude constant current source, for a 1-component solution.
--
"Excellence does not require perfection." -- Henry James
--
Lee A. Hart, 814 8th Ave N, Sartell MN 56377, leeahart-at-earthlink.net
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Message: 27
Date: Thu, 4 Oct 2007 19:57:27 +0100
From: "Paul Compton" <[EMAIL PROTECTED]>
Subject: Re: [EVDL] Silent vehicles, was Re: Sensors at drive throughs
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
> Do you ride?
Quite a bit and filtering (lane splitting) is legal in the UK.
> Awful nice to know that the person you're passing can tell you're
> there. Otherwise they're likely to miss your smaller than usual self
> and attempt to move into your lane, possibly without signaling and
> possibly quickly! This is one reason motorcycles are frequently
> noisy...
That's total bollocks!
Motorcycles are loud because people want them to be, often to the point of
stupidity.
My own favourite bike is quite loud (due to the 'Riservato Competizione'
exhaust) and recorded 100dB @ 0.5m in the noise test at a recent rack day
(105dB limit). It's not a noise people seem to object to however and if I'm
coming home late at night I can keep it fairly quiet by judicious use of the
throttle.
Even if 'Loud Pipes Save Lives' it would only work if they faced forwards.
Even when I'm riding one of the quiet bikes, I often can't hear things
coming up from behind.
Blind people who claim EVs and Hybrids are dangerous are more likely to be
run down by a high end BMW or Merc, they're almost as quiet.
'Loud Pipes Cost Rights!'
Paul Compton
www.evguru.co.uk
www.sciroccoev.co.uk
www.bvs.org.uk
www.morini-mania.co.uk
www.compton.vispa.com/the_named
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End of EV Digest, Vol 3, Issue 14
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