OK, this topic has induced me to resubscribe to the EVDL, it's
probably been 20 years since I was officially signed up. I've
occasionally passed replies through several members (thanks Lee,
thanks David), but maybe it's time to get out in the open.
What you have there is similar to the
Glad you found it informative.
These motors are frequently called "forklift motors", probably
because, well, they were used in forklifts... Your Siemens controller
is likely a "forklift controller", assuming that the conversion
company didn't design one from scratch and have Siemens construct
It's going to be very interesting to hear your report about this van
when you get it running. I can't imagine how they made it even close
to streetable with no gear changes and reverse being changing the
rotation of that motor! You can get away with that kind of stuff with
a series motor.
What we seem to have deduced is that the controller and motor are a
matched pair. It seems without doubt that the controller manages the
voltage delivered to both the armature and the fields, otherwise the
"reverse switch" wouldn't be workable. I'd image that the sequence
would be something
> It takes 1 BTU to raise one pound one degree.
The engineer in me won't allow this to pass unchallenged, although in
the context of this discussion, it probably doesn't matter.
It takes 1 BTU to raise one pound OF WATER one degree. You have to
consider the latent heat of whatever the object
>>We're going back to the way intertie started off decades ago. The
utilities
imposed impossible technical and insurance requirements on net metering,
which led PV hobbyists to start the Guerrilla Solar movement -- essentially
doing grid intertie on the sly.
This is veering around and nearly
No, you're not being misunderstood, but you apparently are
misunderstanding how the module-level inverters will be accepted by
your power provider.
Virtually ~all~ utility companies require a customer who plans to
produce power and introduce it to their grid to have complied with
stringent
Can't say about the availability of v.3 boards, the whole Clean Power
Auto inventory and business was sold to an Australian or New Zealand
company that modified the design, but seem to still be supplying units.
The "original" MiniBMS design ~was~ an open source project that was
developed on
>> A URL or name for this company would be appreciated.
Try this, although it seems some of the products are discontinued/out-of-stock:
https://evparts.com.au/ev-power-bms.html
>> Let me know once you have a few extra to sell.
This will likely be a fall/winter project, once the year's
Maybe I'll have a few made up and post them myself - "guerrilla
style" - near convenient-looking receptacles down at the po-lice station!! ;)
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>> I read recently that at many commercial EVSEs in France, billing is
strictly by time connected, not energy usage.
Something else to consider is that many utilities forbid the
reselling of their energy. In fact, in Oregon, its a state law, and
probably is elsewhere as well. No laws say you
>> AM radio would be nearly useless without those 50,000 watt broadcast
stations.
Actually, there are a limited number of those clear channel 50KW
stations, and for obvious reasons, a limited number of clear channels
for them to broadcast on.
Most AM stations have much more modest power
>> Anybody have experience with this or any other J1772 adapter?
Like several of the other respondents, I built my own after the local
utility put in two 30 ampere EVSE pedestals at the front of their
office in town.
The components to signal the EVSE to begin charging aren't at all
Since we are trotting out charging tales, here's mine, it ties in
with Bob's EV charging sign thread nicely as well:
Last year, right after I did my LiFePO4 conversion, I was unsure of
my range, and still being cautious about charging before heading out
to my rural home from town. I asked a
If it's not responding according to the instructions in the manual,
give Rich Rudman a call at Manzanita, he knows ~everything~. Be
prepared to spend some time on the phone, you'll learn lots about
that everything.
If necessary, send it back to them for repair. Mine's been back twice
after I
Yep, scorched a plastic hood scoop on my pusher trailer while
displaying a glass gallon jug of Biodiesel at the OEVA exhibition at
the Portland OMSI museum in 2002. Refraction is a harsh mistress...
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>> William Egan - Retired - Chief Engineer/Team Leader - Goodyear Tire ...
Bill Egan, not Tom, I realized that as soon as I pressed 'send', but
you can't suck the data back to correct. (if auto-correct is so
smart, why didn't it catch that?)
Catching tire wear before it shows in the tread is
>> I hadn't really thought about it much until now,
>> but wouldn't that be yet another way for the "coal rollers"
>> to hassle EV drivers?
Works both ways. The reason that these knuckle-draggers can force
their engines to over-fuel is because of tampering with the engine
management computer's
I'm going to throw in on this as well. I'm still running on Goodyear
Invicta GLR's.
The first set I purchased after talking to Tom Egan of Goodyear, who
recommended pumping them up to 50+ PSI, he had little concern about
raising the pressure above the sidewall recommendations. My tire
>> what size were you looking for on which car model?
The EV is a 1981 VW Rabbit.
I don't know how particular I can be about size. Logic dictates that
narrow is better for rolling resistance. The car (as manufactured)
had 155-70R13's on it, but the conversion factory upgraded it to
5-1/2"
Time to turn up the dial on the technical channel.
After converting my car to a lightly-used set of Thundersky 160's,
I've finally gotten around to having some thermal images taken of the
cells after running the car up to temperature. My purpose was to make
sure that none of my cell
Thanks everyone for the thoughtful replies. I'm very hopeful that the
problem is something external that I have control over, rather than
internal, which I don't. I'll be putting lots of attention into that
terminal, strap and hardware tomorrow. It will be embarrassing if it
turns out to be
Well, it looks like this issue may have been one of my own making.
When I went to remove the cell interconnect strap, both bolts into
the cell terminals were "just snug", not tight. Apparently I got
distracted when completing the BMS card swap, and didn't torque the bolts.
The straps are made
While I can see how it might be appealing to try and purify the EV
Album to only display BEV's, those calling for that action should
consider the epic amount of work you would be tossing at Mike
Chancey. Every one of the 5400+ registered vehicles would need to be
reviewed, and a value
>> Tesla car drives itself through parking lots with 'Smart Summon' feature...
I can't figure this whole "self driving/autopilot" thing out at all.
If I paid that much for a car, I'd want to drive it myself, why let a
computer have all (or any) of the fun?
>> (The projector system) has to know exactly where your eye is, to
position the image correctly.
My understanding is that Tesla already has the ability to program the
headrests on seats to follow the movement of the passengers heads so
to keep the cushion directly behind as a safety feature.
Bill;
That's possibly ~very~ useful, assuming that I can actually find any
Audi 4000's to part out. Makes my heart ache, there used to be loads
of them at the wrecking yard I haunted 20 years ago. Still, it's
something to work towards.
I have the Suplex Coils Spring Application Guide from
I'm having a hard time figuring out how forcing a several hundred
thousand people to rely on hardware store gasoline generators and
extension cords to light their homes is reducing the fire danger.
Sounds a lot more like PG reducing their liability and foisting it
onto their ratepayers.
After doing a morning of fleabay research and consulting my Suprex
spring catalog, I took a leap of faith and purchased a set of two new
replacement springs from a seller in Germany for $75 w/shipping. I
probably could have fooled around trying to find a parts car
somewhere, or used some of
Since converting my car from lead to lithium, I've shaved about 600
pounds from the overall weight of the car, mostly from the rear axle
load. Of course, this means that the rear end is up in the air due to
the over-large rear coil springs that the conversion factory installed.
Last weekend,
> Use one of these:
>
> https://postimages.org/
> http://www.uploadhouse.com/
>
> Neither site even requires registration. It's easy, just point and click
> with your browser. The photo posts, and they give you the URL for viewing.
A note of caution: Be sure you read and agree completely with
> Perhaps it was the cannabis division that suggested it could be different.
If that were the case, the value of Pi would be 4.20
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> More to the point, lead-acid batteries are not recycled at "nearly 100%" as
> claimed. If you look at the numbers provided by the lead industry
itself, at
> _least_ 30% of them escape the recycling stream
Hopefully, whoever does this sort of bean counting took into account
the number of
>> SFChronicle attempts to force ad viewing. Screw 'em.
Likewise.
I did dig through the page code and copy-paste the fifth photo
address, so now I have a face to go with the name.
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>> Glad you found something!
Yeah, me too. I went all around the battery and tested torque on the
rest of the 74 bolts, and only found a few that needed an extra
foot-pound or two. The threads have been coated with anti-seize, so
there is good lubrication, but I'm really gun-shy (wrench-shy?)
>> It is possible that the Noalox had become separated in the bottle
>> but as a long term industrial electrician who has never used
>> the stuff before, I decided to use the tried and tested method of having
>> bright clean (tight) connections.
That's always my first choice also, bright and
Not to draw this topic out too far, but I thought I'd post an image
that shows what I inherited when I bought the conversion truck and
began removing the cells for installation in my car.
This is large image, but I left it in the original resolution after
cropping so that the details wouldn't
No complaints here about the body styling. It's about time that EV
designers offered some conservative looks that don't scream "I'm an
EV, Look at me!"
The only minor quibbles I might toss out are that I'm not crazy about
cab-forward designs, and that some of us who don't have kids to stuff
> Or are you suggesting that they might have produced something usable
> had they been manufacturing small cars for as long as the Japanese
> automakers had?
Precisely this. After they bombed with the Corvair, there was little
to show for small economy cars, aside from Chevy II, Nova, etc. As
While I agree with Gail that more trees would be preferable to more
cars, more EV's is much more preferable to more ICE's.
Face it, those trees are eventually going to be paved over in the
name of "progress", is it more or less noble to be felled for a
purpose that will result in less overall
A couple of weeks back, there was an ongoing discussion about
building a custom battery that Peri was designing. An offshoot post
from that by Tim Economu offered an open source BMS/cell module
assembly project that he had worked up:
Depending on the version (and condition) of the boards, they are
repairable. The most common failure is of the optical relay that
isolates the cell module from the controller head. It's not a
particularly expensive part, and although it's surface mount (SMD),
it has only four leads, and can be
I sense a beautiful online relationship in the making here.
Unfortunately, I'm using the Nabble web archive to read messages,
which means I can't see your contact information (or even your name,
since Nabble bollixed up the interface a few years ago).
Here's a little email address puzzle to
My fantasy BMS would be to have the cell modules communicate with the
downstream electronics by way of fiber optic cable. Think of it, no
galvanic coupling, complete lack of magnetic induction pickup (no
shielding needed), wideband data path, low/no RF generation. A very
simple system could be
Tim;
I'm glad you posted this. I didn't know how much attention your
desired, but wanted the members of the list to recognize your contribution.
We haven't met or talked, but I'm sure if we did, we'd discover that
we have only a degree or two of separation in the RE industry, and
probably
> Use parts and methods with a *proven*
> reliability record; not whatever is cheap and handy.
Cheap And Handy is my alternate identity in the workshop!! ;)
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The MiniBMS system was originally started as an open source project
by users of the DIY Electric Car forum. It was mostly spearheaded by
Dimitri, with input from several interested users. The first version
as intended to be able to used with all the cell modules on one PCB,
with voltage sense
The usual instrument for measuring insulation leakage is called a
"megger" or "hipot tester". This can give you a quantified value of
the leakage in ohms-per-volts. Most any motor shop will have one, and
can test for you.
Finding your fault is likely going to me more involved even if you
buy
> I think the real problem is that our world leaders are incompetent
> sailors. They can't read the map of the future, don't understand the
> winds of change, and have no clear idea of where they are even heading.
Meanwhile, those of us who care are locked in the cargo hold of this
ship of
> Check the NEC if you wanna do it for your house
Section 310.4 of the National Electrical Code permits paralleling of
conductors only if the wire gauge used is 1/0 or larger. There are
further stipulations on the type and installation of the conductors.
For sure, follow the NEC guidelines.
I don't understand the problem, at least two opportunities for
entertainment and retail purchases while you charge. If I'd had
nearby services like these this morning, I would have stuck around
the electric utility's free EVSE for a full charge instead of bugging
out at 2/3 ;)
> tap your battery at the DC:DC's nominal voltage
nonononono, don't ever do this
I thought I would save some bother and tapped five of my 18 T-105's
(yeah, lead, I know, but) to run the E-Meter on my car. My attitude
was "how bad could it be?"
Very bad. The brand new battery pack failed
> A fluoride-ion battery, or FIB, generates electricity
> by shuttling fluoride ions (etc, etc, blah, blah)
WOW!!! A battery that generates electricity would never need charging!
Whitens and strengthens your teeth at the same time it self-charges!
Look Ma, no cavities!
> I see online that the MiniBMS idle current is 2.2ma.
Depends on the version of the MiniBMS. The early "analog" models
(original and v.2) that use the LM239/339 comparitor chips typically
have a quiescent current of about 6.5mA. Individual modules can have
a current draw of up to 9mA. These
> Wouldn't you expect that these large oil companies would have
> the ability to weather industry downturns, improve the
> technology, and remain around to service warranties, like Siemens,
> as opposed to a smaller company?
Well, sure, that would be the expectation, but in their prior
exploits
> Are you saying that they didn't honor the warranty on
> some panels you bought?
No, I purchased Siemens panels which are now out-of-warranty. The
point of my comment is that PV manufacturers have been a shifting
landscape for years, and few of them stay in business or sell the PV
division
> With modern electronics you could react very quickly if the draw
> dropped (current flow started to go negative) and essentially never
> backfeed the grid.
Such a project is already developed and it's Open Source!
http://openenergymonitor.org/
I was involved in this project in the very early
Don't forget that both BP and Shell (A.K.A. "Royal Dutch Shell") have
attempted to greenwash their image in the past by entering into
photovoltaic manufacturing.
Just try getting them to honor the 25 year warranty on any of those
solar panels they sold 15 and 20 years ago...
> I would run up against at's 8gb data limit way
> before the end of the month because today's web pages have so
> many ads, and auto-stream videos, etc. that eat data voraciously
I think this part of your post verifies David's concerns about Yahell
very nicely. That's ~exactly~ his point, some
> I have heard of copper pipe being crushed flat, then drilled, to
> create suitable custom high amp busbars
Beware! Copper water pipe is not pure copper, but is composed of
alloy, you won't be getting the conductivity of 99% copper. Also,
crushing and drilling pipe is time consuming and
> stack several of them for the 5p17s pack
While it looks like you have done the calculations on voltage drop
and heat production, and the values are acceptable, I'd question the
wisdom of trying to build a 5p pack using the Leaf busbars, mostly
because layering up multiple short busbars to
> Don't put one in your pocket with change
> and other conductive items
I did that with a handful of mostly dead AA alkaline cells once. It
was exciting, briefly.
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> Your choice, but I'm sticking (sorry) [you should be...] with LRR.
Depends on your comfort level. My Goodyear Invicta GLR LRR tires were
*dangerously* slippery. I can think of at least two instances of
incidents that I was involved in that would have resulted in a
smashup if I had been
> The determination of which of these, if any, is made in a Leaf size
> will be left as an exercise for the reader
Oh, but this isn't the "What tires fit my Leaf" topic, this is the
"VW eGolf owner wants to have Hot Hatch performance" thread. (If Hot
Hatch even applies to a 4-door buggy, my
> 90% of my driving is local, 90% of my driving is EV.
> That's not 100%; but the perfect is the enemy of the good.
> I'm not willing to pay the Tesla premium
> for a perfect 100% EV solution.
If more people realized this, more of them would purchase EV's.
I'm frequently asked by interested
Similarly, I think that the six SCT Rabbit conversions that were in
fleet service for the city of Portland, OR in the 1980's got a
similar reception from the city employees that were "forced" to drive
them. It was part of a federally-funded study, and drivers were
expected to complete a
> They've sold small cars grudgingly, and only because
> of the CAFE requirements.
Oh, it goes back way farther than that. Look at some of the more
innovative vehicles that became popular. The Thunderbird and Corvette
come to mind immediately, but there are many more examples.
Early T-birds
Great tech advice as usual, Bill.
Contacting a wheel repair place here in Oregon (Eugene area is the
closest), I find that straightening the three slightly deformed 14x6"
factory alloy wheels that I intended to use is $150 each. I about
choked on that price, then I found out what a set of
One of the reasons for posting here was to expand my search to the
knowledge base that exists on the mailing list. I wanted to be sure
that I wasn't overlooking any viable options by being too narrow in
my search field (mostly tirerack.com)
Apparently, according to searches on the Pirelli web
Bill;
No worries on the Audi spring swap. I went into it with eyes open,
just the tip that the springs were compatible helped me move forward.
I think that a complete spring/shock assembly *is* a drop-in
replacement. Whether the ride height is completely stock afterwards
is open to question,
The Goodyear Invicta GLR's on my car finally had to be replaced after
all these years. Tire wear was one factor, but mostly, they were
beginning to look unsafe, all checked and separating. The random
take-off used tires I had on hand to replace them bit me with a 13%
increase in energy
> Your choices will probably be wider if you splurge for
> 15" wheels and fit lower profile tires...
David, thanks, I'll look into the Nokian's. 185-65/14 will work
although I'd prefer them in 60-series tires.
This ~would~ be a whole lot easier if I was willing to bump up a
wheel size, but
> I'll never understand this bizarre styling trend for making
> massive car wheels with thin little tires
When I was spending my hang-out-online time at a popular VW forum
(vwvortex), there were constantly users complaining about how they
hit some pothole or other, usually in a big city, and
> Remember that the top of a tire is moving forward
> at *twice* the speed of the car
I was discussing this a short while back with a friend. If the top of
the tire is moving at 2x, the axle is moving at 1x, then the bottom
of the tire would have to be standing still. But we all know that it
Car and Driver wrote:
"CitiCar didn't win any beauty pageants -- it looked like a cross
between a doorstop and a milk carton"
HAHAHAHAHA!
Who says gear heads don't have a way with words?
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>> Tesla claims its Cybertruck will be bulletproof
>
>Maybe Musk has realized that he'll need a
> bulletproof vehicle for himself if he keeps reselling
> bought-back lemons to his customers
If he started building them with drinking fountains, he could drown
his sorrows without having to stop at
> It uses a standard size panel mount breaker
As Lee says, these breakers should be commonly available new and
used. One brand of this type of breaker is "Airpax".
https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2047675.m570.l1311&_nkw=airpax+circuit+breaker&_sacat=0
Not sure I'd be
This doesn't help you with the battery selection and purchase, but:
Back in April, Tim Economu offered an open source BMS/cell module
assembly project that he had worked up:
http://electric-vehicle-discussion-list.413529.n4.nabble.com/custom-battery-DKblock-td4696973.html
(Pointing at the
Our local People's Utility District has been offering free charging
from two 30 amp EVSE parking stations at their offices for a couple
of years now, and touting them in their monthly newsletter that gets
sent out with bills.
They've now decided to remove the free pedestals and replace them
> we both don't like the angry-aggressive front grill face it has
> (I know that's a silly reason )
No, it's not a silly reason. If consumers keep purchasing ugly
products (in this case automobiles), they'll keep making them, and
they will continue to be more and more horrendous looking.
Out
After doing a short bit of research, maybe you are referring to these:
https://www.ebay.com/itm/For-Nissan-Leaf-Battery-G1-Spacers/124105429028
What I have are probably end plates (you are welcome to those if you want them)
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School me here, I haven't seen all the parts and pieces that make up
a Leaf pack.
Are you referring to the stamped metal plates with the kind-of hook
that stands up on the end opposite the terminals? If so, I have one
pair for you.
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Jay;
I'll raise my hand on this one. I've been tinkering with the MiniBMS
modules, and have a few spares that I intended on changing the
setpoints so that I could put them on the Leaf cells that I installed
in my GE Electrak. For now, I'm the BMS, I hover around the tractor
while it's
> In fact we do have a forum gateway, as a feature of the
> archive ... It's a bit clunky, but I'm working on that.
Yeah, Ya think? I use the Nabble archive exclusively to view
messages. Some years ago, the formatting changed so that it's no
longer possible to see who posted which message, who
Best of luck to Bruce in his new enterprise. Apparently, he considers
that the tag EVLN is personal property, which was the reason for his
departure here.
Back in 2016, Bruce decided to "spend a whole day" writing up an
archive of some of the pages from my now defunct web site. I wrote
him a
> In any case, I expect the general content of posts here to improve.
Sorry, I'll try harder in the future...
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Tiffany Trump Makes News as She
I'd say it's more likely a calibration error brought on by shallow
cycling and disuse.
The only way the "car" (computer algorithm) knows how far the car can
go is to compare battery health to recent mileage. This would require
it to observe recent discharge/recharge cycles to develop
> the milage of driving up and down the driveway is much
> worse than actually driving somewhere
This would be true in any vehicle. Lubricants wouldn't have time to
heat up and become less viscous, tires would stay stiff on a short
run, brake pads and calipers would have more residual friction
> Musk seems to think that he's above the law, bigger and stronger
> than the NHTSA bulldozer. He's putting himself, and
> Tesla, right in front of it. It'll be interesting to see who wins.
The winner might be determined by which party has the self-driving
feature activated, and who the
And the icing on this solution's cupcake is that ~any~ Lowe's utility
trailer is *much less* ugly than the Tesla fever-dream designed truck.
Sponsored by
https://www.newser.com/?utm_source=part_medium=uol_campaign=rss_taglines_more
The sooner you abandon this idea, the sooner you'll get started on a
logical solution to your transportation needs that actually makes sense.
There are few, if any successful homebrew series hybrid conversions.
The idea of running a generator seems like it would make sense, but
there are
> - How did you open the charge port door manually?
> - Was the 12v battery dead? Or the traction pack? Or both?
> - How did you "reboot" the system?
> - Once it finally charged back up, have you observed any capacity
loss, or other consequences?
Shush, Lee, the useful information he's
> the "energy-star" design will NOT let the
> defrost come on when power is restored
Curiously, with the somewhat-ancient Kenmore refer here, that's the
~first~ thing it does after a power interruption, run a defrost
cycle. I have to remember yank the cord out of the wall before I
transfer my
> Tesla lawyers recently admitted the $10,000 option that Tesla
> sells as Full Self-Driving Capability is not, in fact, capable of full
> self-driving.
I still don't get the fascination with self-driving cars. If I was
going to cough up the asking price for the pinnacle of automotive
> I capacity tested six of them and found
> them to have a 48 AH capacity
That's good news, Jay. The ten second-generation modules I bought
from an online seller probably came from several vehicles, all with
different mileage, etc. All of them tested within a few Ah of each
other, about 50Ah
> where's the parking brake to set when
> I launch the ski boat at the boat ramp?
You didn't spring for the $25k submersible option? I hear it's self-navigating.
Sponsored by
> pay a cabbie $25 per trip to take you on local
> errands twice a week for 20 years
... but you still wouldn't get to drive an exciting, cutting edge EV,
aaannnddd... the cabbie probably drives an old ICE beater with
bedbugs in the upholstery. Ask me whose driving I have more
confidence in,
>I don't think you get much from 3.3 to 3.6
During testing, I took them down to 2.9v per cell, but you're right,
after about 3.4v, there really isn't much left. I was running two
modules in series feeding a Trace DR series inverter and using a 600W
space heater for a load. The inverter
> Consider: You are going to use your lithiums until they die
Actually, I'm hoping for the reverse, that my battery packs last
longer than I do.
Sponsored by
> I'm thinking 3 of these on my ElecTrak 36v pack
While it's not a strict apples-to-apples comparison, I use a 45 amp
Todd "Power Source" switching power supply as the on-board charger on
my E20 ET. The three 15 amp internal modules were changed from
parallel to series connection. No problems
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