Re: [EVDL] EPRI TVA VW electric bus
Electric Vehicle Discussion List mailing list wrote > Curious, did they raise the floor to fit the battery box? You could > probably get a 40kWh lion pack in there, if it goes all the way through > :) > > Peri The floor is the normal location for a VW bus. There is massive storage space for batteries. There is an extra frame below the normal frame because of the extra weight of a ton of batteries. There are sliding doors on both sides of the bus so the battery pack can be pushed through with a new battery pack. -- Sent from: http://electric-vehicle-discussion-list.413529.n4.nabble.com/ ___ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
[EVDL] EPRI TVA VW electric bus
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 shunt-wound motor in my factory-conversion SCT Rabbit from 1981. I can't tell you anything about the controller, but the motor is very familiar. Shunt wound motors differ considerably from series wound motors. For one thing, they have regenerative capabilities as a native behavior. The field windings are energized separately from the armature (they are also known as "separately excited" motors). I'll leave it to you, or others to do the research on the technical principles involved, but suffice it to say, the armature runs at 100% voltage (direct connection to the batteries through a contactor), while the motor speed is controlled by ~weakening~ the field voltage. That's right, ~weakening~! You can not run this motor by simply applying a voltage and watching it spin. There is a startup sequence, which consists of applying full voltage to the field windings, and a current-limited (via resistors or other current limiters) voltage to the armature. This causes the armature to come up to an idle speed slowly (4-5 seconds), at which time the controller applies full battery voltage to the armature. These motors have poor stall torque, so it "idles" when not actually driving the vehicle forward. Mine idles at about 1,800 RPM (120 volt nominal battery supply). This is with full field. As the field is weakened (by a PWM or "chopper" circuit), the motor speeds up. This type of motor allows a fully functional "one pedal" driving style. Step on the accelerator to speed up and let off to activate *very* powerful regenerative braking. I see 200+ amperes while downshifting through all gears (I realize that your vehicle is locked in 2nd). Using the service brakes is not necessary except in an emergency or to come to a complete stop. Before you do anything else on this van, you MUST check a few things beforehand. On the end of the motor that you have pictured is a conical shroud held on by clips/clasps. This is the brush end of the motor. There are eight armature brushes under this shroud. If the van has been siting for any length of time, you would be well advised to pull this shroud and check to see that ~all~ of the brushes are free to slide in their holders *and* that none of them are stuck to the armature. also clean out any dirt/dust/cobwebs/insect or rodent nests you see! Now, as for your test to see if it ran. Did you twist the key over to the "start" position? Because the motor has a start sequence, there must be some method of engaging the field voltage and armature current limiting circuits. Installing a fresh 12 volt accessory battery will likely be necessary, as the controller obviously requires a low voltage supply in addition to the traction battery. Until last week, I had a web site with extensive documentation on my SCT Rabbit, including information on the motor, etc. Some of this may be useful to you, so drop in to the archive.org Wayback Machine and check some of the PDF files that got saved in a snapshot of my site from seven or eight years ago: http://web.archive.org/web/2009054159/http://www.mrsharkey.com/SCT/index.html Glad to answer and questions you have, sorry to be completely ignorant about your controller. 1 Cup (Before Bed) Burns Belly Fat Like Crazy! worldhealthlabs.com http://thirdpartyoffers.juno.com/TGL3131/5ce8c08fdf8e640876987st04duc ___ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
Re: [EVDL] EPRI TVA VW electric bus
Electric Vehicle Discussion List mailing list wrote > 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 shunt-wound motor in my > factory-conversion SCT Rabbit from 1981. I can't tell you anything > about the controller, but the motor is very familiar. > > Shunt wound motors differ considerably from series wound motors. For > one thing, they have regenerative capabilities as a native behavior. > The field windings are energized separately from the armature (they > are also known as "separately excited" motors). I'll leave it to you, > or others to do the research on the technical principles involved, > but suffice it to say, the armature runs at 100% voltage (direct > connection to the batteries through a contactor), while the motor > speed is controlled by ~weakening~ the field voltage. That's right, > ~weakening~! > > You can not run this motor by simply applying a voltage and watching > it spin. There is a startup sequence, which consists of applying full > voltage to the field windings, and a current-limited (via resistors > or other current limiters) voltage to the armature. This causes the > armature to come up to an idle speed slowly (4-5 seconds), at which > time the controller applies full battery voltage to the armature. > > These motors have poor stall torque, so it "idles" when not actually > driving the vehicle forward. Mine idles at about 1,800 RPM (120 volt > nominal battery supply). This is with full field. As the field is > weakened (by a PWM or "chopper" circuit), the motor speeds up. > > This type of motor allows a fully functional "one pedal" driving > style. Step on the accelerator to speed up and let off to activate > *very* powerful regenerative braking. I see 200+ amperes while > downshifting through all gears (I realize that your vehicle is locked > in 2nd). Using the service brakes is not necessary except in an > emergency or to come to a complete stop. > > Before you do anything else on this van, you MUST check a few things > beforehand. > > On the end of the motor that you have pictured is a conical shroud > held on by clips/clasps. This is the brush end of the motor. There > are eight armature brushes under this shroud. If the van has been > siting for any length of time, you would be well advised to pull this > shroud and check to see that ~all~ of the brushes are free to slide > in their holders *and* that none of them are stuck to the armature. > also clean out any dirt/dust/cobwebs/insect or rodent nests you see! > > Now, as for your test to see if it ran. Did you twist the key over to > the "start" position? Because the motor has a start sequence, there > must be some method of engaging the field voltage and armature > current limiting circuits. Installing a fresh 12 volt accessory > battery will likely be necessary, as the controller obviously > requires a low voltage supply in addition to the traction battery. > > Until last week, I had a web site with extensive documentation on my > SCT Rabbit, including information on the motor, etc. Some of this may > be useful to you, so drop in to the archive.org Wayback Machine and > check some of the PDF files that got saved in a snapshot of my site > from seven or eight years ago: > > http://web.archive.org/web/2009054159/http://www.mrsharkey.com/SCT/index.html > > Glad to answer and questions you have, sorry to be completely > ignorant about your controller. Awesome, thanks so much for the information. This is a great start towards making this thing work. When I was in college, one of my computer science professors explained that the people in the factory put the magic smoke into the electronic components, and it is our job not to let the magic smoke out. I have taken this to heart when working on electric stuff like this which I know very very little about. Thus I am unwilling to just put voltage to a component like the motor and see what happens. Normally, when I go to work on something I have a massive technical library to draw upon, but in this case, I am starting out in the dark and this has shined some light. On the operational characteristics of this motor, by the field having full voltage at stop (or just more voltage than the armature), it overpowers the armature and creates drag buy forcing the system to generate electricity, and when the armature has more voltage it uses the battery power to turn. Is this correct? Not that it necessarily helps in getting it running, but I like to know how/why things function. I turned the key on, and to the start position a couple times, but I got nothing to indicate than any electrons were flowing anywhere in the system. I figured that the start position was just a
[EVDL] EVLN: EV-newswire posts for 20190526
http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-sputnik-sez-Marussia-Car-May-Become-NTSU-Sports-EV-ru-tp4693674.html
EVLN: sputnik sez Marussia Car May Become NTSU Sports EV.ru
Russia's Iconic Sports Car May Become Prototype for Advanced Electric
Vehicle
25.05.2019 ... create an electric car on the domestically made sports car
Marussia chassis ... nstu.ru first Russian company to produce supercars in
the country ...
https://cdn5.img.sputniknews.com/images/107533/42/1075334226.jpg
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EVLN: eFlyer4 e-plane> 3xFaster& 4xCheaper than driving (v)
BlackBird adding 100+ Bye electric airplanes to on-demand service by 2020,
3x faster and 4x cheaper than driving
May. 22nd 2019 The energy cost for the electric eFlyer 4 is four times less
expensive than driving a conventional car per mile, three times faster, and
requires no aviation fuel ...
https://youtu.be/YQSbt_hev1g
+ (Detroit media spewing koch-koolaid)
https://www.freep.com/story/money/cars/mark-phelan/2019/05/25/rivian-electric-pickup-truck/1199625001/
Electric pickups are coming, but does anyone really want them?
May 25, 2019 Just this year Amazon and Ford have led investments topping
$1.2 billion in Plymouth-based electric vehicle startup Rivian. Rivian's EV
pickup program also led ...
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https://www.theglobeandmail.com/business/international-business/us-business/article-tesla-says-solar-factory-will-now-make-ev-chargers-and-other-products/
Tesla says solar factory will now make EV chargers and other products
May 15, 2019 - Tesla says solar factory will now make EV chargers and other
products ... as the company has drastically scaled back the U.S. solar
business it ...
(1st 1MW of type3/l3= free @Leeds.uk carpark)
https://www.yorkshireeveningpost.co.uk/news/people/electric-vehicles-can-plug-in-for-free-as-pioneering-piece-of-charging-tech-comes-to-leeds-1-9783295
Electric vehicles can plug in for free as pioneering piece of charging tech
comes to Leeds
22 May 2019 ... The first 1,000 kilowatt-hours (kWh) of electricity used at
the charging point from Monday, May 27, will be free, CitiPark has confirmed
... enough to charge around 20 cars on a first come, first served basis ...
The Rapid Charger station can charge two vehicles at the same time, using
either a 50 kWh DC port or a 43 kWh AC port ...
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http://electric-vehicle-discussion-list.413529.n4.nabble.com/Vandals-target-attack-damage-UK-Zoe-EVs-tp4693671.html
Vandals target,attack, UK Zoe EVs
Vandals shut down UK electric car sharing program within months
May. 24th 2019 But the pilot has been abandoned after vandals targeted the
vehicles, the Birmingham Mail reports. A spokesman for E-Car Club, a UK
electric car sharing ...
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[EVDL] EVLN: Winnebago, Motiv preschool mobile> using sodium-nickel packs
https://www.trucks.com/2019/05/21/winnebago-electric-power-help-kids-breathe-easier/ Winnebago Converts to Electric Power to Help Kids Breathe Easier May 21, 2019 Alan Adler [images https://www.trucks.com/wp-content/uploads/2019/05/winnebago-feature.jpg Winnebago's battery-electric-powered mobile preschool will debut later this year in Colorado. (Photo: Jon Resnick, courtesy of Vail Valley Foundation) https://www.trucks.com/wp-content/uploads/2019/05/winnebago-steps.jpg Winnebago mobile preschool battery-electric Most of the families whose children will use the Winnebago mobile preschool live at or below the poverty line, according to the Vail Valley Foundation. (Photo: Jon Resnick, courtesy of Vail Valley Foundation) ] Winnebago Industries Inc., the maker of outsized recreational vehicles, bookmobiles and mobile insurance offices, is starting to build customized battery-electric RVs with no tailpipe emissions. It’s another example of a truck maker embracing electrification to help customers meet sustainability and environmental goals. Medium- and heavy-duty trucks accounted for 23 percent of heat-trapping greenhouse gas emissions from all transportation in 2016, according to the U.S. Environmental Protection Agency. Winnebago’s commercial offerings consume a lot of gasoline and diesel fuel. They come in lengths of nearly 34 feet and 39 feet. And they stand 12.5 feet tall, are almost 8.5 feet wide and weigh up to 26,000 pounds. “If I buy a diesel-powered (blood donation truck), it’s likely I won’t be able to register it in three years because the air quality district is probably going to put the clamps down,” said Jamie Sorenson, Winnebago director of specialty vehicles and advanced technology. ‘EXTREME’ MEASURES The California Air Resources Board last week suggested “extreme” measures for curbing tailpipe emissions. That might include a ban on internal combustion engines. CARB is battling with the Trump administration over its plan that would keep emission standards at current levels. Winnebago and Motiv Power Systems are working on six electric conversions [ https://winnebagoind.com/company/news/electric-specialty-vehicle ]. Motiv substitutes battery packs for the internal combustion engine in a Ford Motor Co. chassis. Winnebago provides the RV shell. The shell is customized by a second-stage manufacturer known as an upfitter. Winnebago’s first electric customer is UCLA Medical Center, which will take delivery of a Mobile Surgical Instrument Lab in June. It will be used to sterilize surgical instruments for the university’s two hospitals, shuttling seven miles between them. “It’s going to save about $60,000 a month because they’re currently contracting that work out,” Sorensen said. Winnebago mobile preschool battery-electric [image] Winnebago’s mobile preschool will help Eagle County, Colo., meet environmental goals. (Photo: Jon Resnick, courtesy of Vail Valley Foundation) The customized Winnebago includes a high-temperature pressure chamber called an autoclave that requires a lot of electricity. That means as many as three air conditioners are needed to keep the vehicle comfortable. The lab will stay plugged in except when being driven from one hospital to the other. The mobile lab costs about $425,000. State grants cover $90,000. BREATHMOBILES, LUNG CANCER SCREENING Winnebago has contracts to create four electric-powered Breathmobiles in low-income areas of California. These vehicles treat asthmatic youngsters. Funding will come from a $119 million settlement paid by Southern California Gas Co. for a 2015 methane leak. Winnebago built the original gas-powered Breathmobile. “You’re worried about your lungs and you’re breathing in fumes,” Sorensen said. A zero-emission Breathmobile removes the irony, he said. Winnebago and Motiv last year worked with Samsung Neurologica, the medical arm of Samsung that makes CT scanners. Samsung’s battery-powered low-dose CT for early detection of lung cancer made it ideal for mobile use. Winnebago launched the world’s first mobile lung cancer-screening unit last September at the Global Climate Action Summit. MOBILE PRESCHOOL Later this year in Colorado, an electric-powered mobile preschool will help educate children whose parents work at ski resorts in Vail and Breckenridge. More than half of those families live at or below the national poverty line, said Tom Boyd, a spokesman for the philanthropic Vail Valley Foundation. It also will help meet Eagle County environmental goals of reducing greenhouse-gas emissions by 25 percent by 2025. “If there’s a way we can go pick up these kids and reduce emissions at the same time, let’s do it,” Boyd said. Individuals are paying for most of the new preschool. The state kicked in some of the money it received in the Volkswagen diesel cheating settlement, Boyd said. “We’re an early adopter and a good test case,” he said. CHARGING AHEAD An electric conversion adds about two weeks to the four months
[EVDL] EVLN: EV-newswire posts for 20190527
http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-Winnebago-Motiv-preschool-mobile-using-sodium-nickel-packs-tp4693677.html
EVLN: Winnebago,Motiv preschool mobile> using sodium-nickel packs
Winnebago Converts to Electric Power to Help Kids Breathe Easier
These vehicles treat asthmatic youngsters ... “We’re an early adopter and a
good test case,” he said. An electric conversion ...
https://www.trucks.com/wp-content/uploads/2019/05/winnebago-feature.jpg
http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-Kona-e-SUV-launches-in-India-on-7-9-v-tp4693678.html
EVLN: Kona e-SUV launches in India on 7/9 (v)
Hyundai Kona electric SUV India launch on 9th July: India's 1st e-SUV
May 22, 2019 The Hyundai Kona electric SUV is going to launch in India on
the 9th of July this year ... Though not confirmed, it is likely that the
Hyundai Kona EV is going to be ...
https://youtu.be/vOivJ74lvQ0
+
https://utilityweek.co.uk/red-dwarf-star-calls-industry-tackle-ev-fud/
Red Dwarf star calls on industry to tackle EV 'fud'
21/05/2019 Actor and electric vehicle (EV) advocate Robert Llewellyn has
called for more people to speak out against what he calls the “fear,
uncertainty and doubt” (fud) ...
https://inc42.com/features/india-ev-industry-awaits-charging-infrastructure-framework/
Will India’s Charging Infrastructure Framework Be The Shot In The Arm For EV
Industry
22 May'19 India's charging infrastructure framework will be released once
the new government is formed ... EV companies seek bigger role ... in the
standardisation of batteries ... Setting up a public charging station will
be de-licensed ... State governments to fix the ceiling of services charges
...
https://i0.wp.com/cdn.inc42.com/wp-content/uploads/2019/05/OREOS-4X-batteries.gif
http://www.bikeexif.com/zero-sr-pikes-peak-hillclimb-electric-motorcycle
Racing To The Clouds: The Pikes Peak Zero SR/F
2019-05-25 The Race To The Clouds tends to be associated with
fire-breathing, custom-built four-wheelers and European rally cars ...
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http://electric-vehicle-discussion-list.413529.n4.nabble.com/Tesla-X-lands-On-A404-Guardrail-fr-precariously-Bizarrely-Balanced-tp4693672.html
Tesla-X lands On A404 Guardrail.fr precariously> Bizarrely Balanced
Tesla Model X Bizarrely Balances On Guardrail After Crash
Also Read: New Tesla Model X Crashes Going Up Mountain, Was Autopilot System
Slow To React? It seems as though the electric ...
https://images.carscoops.com/2019/05/7f8127e4-tesla-model-x-crash.jpg
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[EVDL] EVLN: Kona e-SUV launches in India on 7/9 (v)
https://www.financialexpress.com/auto/car-news/exclusive-hyundai-kona-electric-suv-india-launch-on-9th-july-india-1st-e-suv/1585816/
Hyundai Kona electric SUV India launch on 9th July: India’s 1st e-SUV
May 22, 2019 Arpit Mahendra
[image
https://images.financialexpress.com/2019/05/kona-ev-final.jpg
Hyundai Kona EV
video
https://youtu.be/vOivJ74lvQ0
Hyundai Venue Features Explained Through Animation
]
The Hyundai Kona EV, country's first all-electric SUV is going to launch in
India on the 9th of July this year. Prices are expected to fall in-between
the range of Rs 20 lakh to Rs 25 lakh.
It's confirmed! The Hyundai Kona electric SUV is going to launch in India on
the 9th of July this year. It is going to be India's first all-electric SUV.
Prices for the same are expected to fall in-between the range of Rs 20 lakh
to Rs 25 lakh. The same will be imported to India via the CKD (Completely
Knocked Down) route. Initially, Hyundai is going to aim at selling close to
1000 units of this vehicle in the Indian market for the first year. The
company has also confirmed that initially, it will sell the Kona in select
cities which will include the top-10 metros. In the global markets, the
Hyundai Kona, in addition to its all-electric powertrain, is available with
a gasoline engine as well. For the time being, Hyundai is going to launch
only the electric variant of the Kona in India. Whether or not the company
decides to launch its gasoline derivatives at a later stage remains to be
seen.
Though not confirmed, it is likely that the Hyundai Kona EV is going to be
powered by a 39.2 kWh battery. This battery pack is going to produce an
equivalent of 135 BHP along with 335 Nm of peak torque. This battery pack is
going to offer a range of close to 250 Km. Electric cars are famous for
offering immense off-the-line acceleration due to the immediate delivery of
torque. The Kona will offer a similar experience with its 0 to 100 km/h time
standing at 7.6 seconds. Hyundai is going to provide charging solutions to
the owners of the Kona. These could include fast-charging kits which will be
installed at the owner's home. In the European markets, an all-electric
Hyundai Kona takes 54 minutes in charging to 80% of its battery capacity
when plugged into a 100 kW DC fast charger.
Also Watch: Hyundai Venue features explained through animation
The Hyundai Kona is expected to launch in India in a single, top-spec
variant. As a result of this, it will be loaded right up-to-the-brim with
features and creature comforts. Expect this electric SUV to get leather
upholstery, touchscreen infotainment system with Android Auto and Apple Car
Play, automatic climate control, LED projector headlamps, daytime running
lights along with a host of other features that you can expect from a
premium SUV.
Get live Stock Prices from BSE and NSE and latest NAV, portfolio of Mutual
Funds, calculate your tax by Income Tax Calculator, know market’s Top
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on Twitter.
[© financialexpress.com]
+
https://inc42.com/features/india-ev-industry-awaits-charging-infrastructure-framework/
Will India’s Charging Infrastructure Framework Be The Shot In The Arm For EV
Industry
22 May'19 India's charging infrastructure framework will be released once
the new government is formed ... EV companies seek bigger role ... in the
standardisation of batteries ... Setting up a public charging station will
be de-licensed ... State governments to fix the ceiling of services charges
...
https://i0.wp.com/cdn.inc42.com/wp-content/uploads/2019/05/OREOS-4X-batteries.gif
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[EVDL] Vandals target,attack, UK Zoe EVs
Vandals target,attack, UK Zoe EVs
https://electrek.co/2019/05/24/vandals-uk-electric-car-program/
Vandals shut down UK electric car sharing program within months
May. 24th 2019 Phil Dzikiy
[image
https://i1.wp.com/electrek.co/wp-content/uploads/sites/3/2019/05/ecarclubrenaultzoes.jpg
Zoe EV-shares
]
A promising electric car-sharing program in a UK town only lasted a few
months, as the EVs quickly became a target for vandals who caused
“exceptional levels of damage” to the cars.
The initiative launched late last year in Solihull, a town of about 123,000
people near Birmingham. It made 18 all-electric Renault Zoes available for
locals to hire, as its backers looked to promote the use of electric
vehicles.
But the pilot has been abandoned after vandals targeted the vehicles, the
Birmingham Mail reports. A spokesman for E-Car Club, a UK electric car
sharing service which placed the Renault Zoes into the Solihull program,
said it was forced to suspend the service in February, and it doesn’t look
to return to the area:
“Following discussions with EIT Climate-KIC (who were part funding the
project), the local police and after internally assessing the risks and
costs of damage for the scheme with the Europcar security and risk teams, it
has been deemed too high risk to re-introduce vehicles into North Solihull.
Therefore, the company regretfully has had to close the scheme with
immediate effect. It is incredibly disappointed to have to take this
difficult decision, as it felt the scheme had significant potential for the
local area.”
E-Car Club operates in several other UK locations. It wouldn’t comment on
the nature of the acts of vandalism in Solihull, so all we know from the
spokesman is that those damage levels were “exceptional.”
Local officials expressed their support for getting the program up and
running again, but for a number of reasons, they don’t seem optimistic about
the possibility of a return.
Electrek’s Take
We can’t say if the cars were explicitly targeted because they were EVs, or
if there were other reasons involved — though of course, no reasons are
good, and what would they even be otherwise?
And it’s not like we haven’t seen EVs as targets for vandalism before,
especially with Teslas in the US — that’s partly why Sentry Mode is such a
useful feature. But really, people: what the hell?
[© electrek.co]
...
https://www.birminghammail.co.uk/news/midlands-news/solihull-electric-car-scheme-axed-16321523
+ (1st 1MW of type3/l3= free @Leeds.uk carpark)
https://www.yorkshireeveningpost.co.uk/news/people/electric-vehicles-can-plug-in-for-free-as-pioneering-piece-of-charging-tech-comes-to-leeds-1-9783295
Electric vehicles can plug in for free as pioneering piece of charging tech
comes to Leeds
22 May 2019 ... The first 1,000 kilowatt-hours (kWh) of electricity used at
the charging point from Monday, May 27, will be free, CitiPark has confirmed
... enough to charge around 20 cars on a first come, first served basis ...
The Rapid Charger station can charge two vehicles at the same time, using
either a 50 kWh DC port or a 43 kWh AC port ...
https://images-a.jpimedia.uk/imagefetch/w_700,f_auto,ar_3:2,q_auto:low,c_fill/if_h_lte_200,c_mfit,h_201/https://www.yorkshireeveningpost.co.uk/webimage/1.9783294.1558535358!/image/image.jpg
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Re: [EVDL] EPRI TVA VW electric bus
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 (them). It might be possible to find more information on that unit by haunting industrial material handling equipment sites and forums. It is possible that your controller also does some armature voltage control, some sep-ex motor controller do, so that's something to keep in mind when I go on about the armature having full battery voltage on it continuously during operation. My controller is a dedicated design by EHV Systems specifically for the SCT Rabbit vehicle, so obviously SCT didn't find off-the-shelf controllers to be suitable in some way. It might be possible to power the motor from 12 volts directly. You would need to identify the field wiring and disconnect it from the controller (label things first). On my motor the fields are powered by a cable running in the flange on the output shaft end of the motor, on a length of SO-type rubber cord. The fields draw only about 10 amperes at 120 volts, so not much is needed in the way of heavy wiring. The low field current is also a reason that the controller can be much simplified, no heavy current switching devices. The armature connection is two additional cables exiting the motor adjacent to the field cable. The armature in my controller is limited to 275 amperes at 120 volts. I don't know what the armature would draw at 12 volts, might not be enough to draw much of a spark when connected. Because the motor has poor locked-rotor torque, it will pull more current until it attains some rotational speed. Idle current at 120 volts is about 10 amperes. If it looks like it is going to try and spin up, you might give it some manual assistance to get past that stall problem at low voltage. Do inspect the brushes, if you get the motor running with stuck-ish brushes, you risk a burned commutator, particularly at higher voltage. I would check the brushes and then move on to investigating the controller, the motor is about the least likely reason that you get no response so far. If the van is limited to second gear, how is reverse accomplished? Shutting down the motor to reverse it's rotation seems like a nightmare for an on-road vehicle, would make parking a real hassle. Stop motor, reverse fields, restart motor, repeat as necessary. Uhg. If you get it running, you might want to consider changing the transmission setup. I use all four gears and reverse. 4th isn't useful until about 50 MPH, but a lot will depend on your final drive ratio. Don't some (all) of the old VW vans have reduction gearing after the differential? A link to my SCT Rabbit on the EV Album: http://evalbum.com/91 In particular, a PDF of the field and armature control circuitry in the SCT controller, This will give a sense of how the motor expects to be supplied with voltage: http://web.archive.org/web/2009035218/http://www.mrsharkey.com/SCT/field.pdf At startup, K1 & K2 are energized, field gets full voltage (PWM is disabled in controller card) the armature gets battery voltage through two paralleled 3 ohm resistors and begins to rotate. When the controller determines that the armature is spinning by monitoring the voltage, it pulls in K3, directly connecting the armature to the batteries, and the PWM circuit (Darlington transistor pair) is enabled to allow field weakening in response to accelerator position. At this stage, the key can be released to the "run" position. Shutdown is all relays de-energized. Something to consider: It would be fairly easy to design and build a substitute controller with an Arduino, some instrumentation-grade op-amps and a couple hundred lines of code. The days of using TTL/CMOS discrete components to build logic and control circuits is long past. Overloaded yet? At 08:50 AM 5/25/2019, you wrote: Awesome, thanks so much for the information. This is a great start towards making this thing work. When I was in college, one of my computer science professors explained that the people in the factory put the magic smoke into the electronic components, and it is our job not to let the magic smoke out. I have taken this to heart when working on electric stuff like this which I know very very little about. Thus I am unwilling to just put voltage to a component like the motor and see what happens. Normally, when I go to work on something I have a massive technical library to draw upon, but in this case, I am starting out in the dark and this has shined some light. On the operational characteristics of this motor, by the field having full voltage at stop (or just more voltage than the armature), it overpowers the armature and creates drag buy forcing the system to generate electricity, and when the
Re: [EVDL] EPRI TVA VW electric bus
A friend of mine in Belgium got one of these buses, and he had his local forklift repair shop put it back on the road. He mentioned that it handled like a forklift. Probably has to do with the ton of batteries. This is not exactly a conversion. The bus has been electric since new, and was built by Volkswagen in Germany as part of a collaboration with some other German companies including Siemens and Varta. The earlier Volkswagen buses used reduction gears, but that ended in 1967. This bus uses a double-jointed independent rear suspension system. I have removed the axles so that I can test the bus on the ground without it moving. Before I removed the axles, I turned them both at the same time which forced the transmission to turn the motor. Reverse is achieved by a switch on the dash. I assume that reverses the polarity. The negative cable into the controller from the battery pack is isolated from the frame of the bus and the body of the controller. I am aware that this is ancient technology. I do plan on having a more modern drivetrain in this or another bus at another time, but for my my purposes at this time, I want to have this one as original as possible with the likely exception of the batteries. I view the batteries as a relatively easily solved thing, although I have not decided on which direction I go with that. I want this to run with its stock drivetrain for its historic significance. It is pretty cool that VW was developing electric vehicles over 40 years ago. This bus in this configuration won't get driven regularly. I recently bought an electric VW Karmann Ghia from my friend, John Bryan, who pointed me towards this list/forum as he mentioned that it was very helpful for him and an overall great community. The Ghia needs new batteries (hopefully the same ones that I use in the bus). The Ghia will be a regular driver for me in the coming years. Electric Vehicle Discussion List mailing list wrote > 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 > (them). It might be possible to find more information on that unit by > haunting industrial material handling equipment sites and forums. > > > If the van is limited to second gear, how is reverse accomplished? > Shutting down the motor to reverse it's rotation seems like a > nightmare for an on-road vehicle, would make parking a real hassle. > Stop motor, reverse fields, restart motor, repeat as necessary. Uhg. > > If you get it running, you might want to consider changing the > transmission setup. I use all four gears and reverse. 4th isn't > useful until about 50 MPH, but a lot will depend on your final drive > ratio. Don't some (all) of the old VW vans have reduction gearing > after the differential? > > Something to consider: It would be fairly easy to design and build a > substitute controller with an Arduino, some instrumentation-grade > op-amps and a couple hundred lines of code. The days of using > TTL/CMOS discrete components to build logic and control circuits is long > past. > > Overloaded yet? -- Sent from: http://electric-vehicle-discussion-list.413529.n4.nabble.com/ ___ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
Re: [EVDL] shunt versus sepex motors
Separately Excited and Shunt Excited DC Machines | | | | Separately Excited and Shunt Excited DC Machines | | | The above link points to something I learned when I purchased my Gizmo, which has a sepex motor. Shunt excited motors and sepex motors are differently wired and require appropriately configured controllers. -- Original Message: 4 Date: Fri, 24 May 2019 21:11:35 -0700 From: "Mr. Sharkey" Shunt wound motors differ considerably from series wound motors. For one thing, they have regenerative capabilities as a native behavior. The field windings are energized separately from the armature (they are also known as "separately excited" motors). I'll leave it to you, or others to do the research on the technical principles involved, but suffice it to say, the armature runs at 100% voltage (direct connection to the batteries through a contactor), while the motor speed is controlled by ~weakening~ the field voltage. That's right, ~weakening~! End of Original Message 4 ** -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20190525/9bee28e8/attachment.html> ___ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
[EVDL] Tesla-X lands On A404 Guardrail.fr precariously> Bizarrely Balanced
(EVcrash)
https://www.carscoops.com/2019/05/tesla-model-x-bizarrely-balances-on-guardrail-after-crash/
Tesla Model X Bizarrely Balances On Guardrail After Crash
May 25, 2019 Brad Anderson
[image
https://images.carscoops.com/2019/05/7f8127e4-tesla-model-x-crash.jpg
share
https://www.facebook.com/permalink.php?story_fbid=2426278840935639=1718877531675777
(Gendarmerie of Ain - Official site - about a week ago
ACCIDENT ON A404 IN MONTREAL-LA-CLUSE
New Tesla flying model on takeoff runner on A404, direction Bourg / Oyonnax,
at the end of the tipping. The landing was smooth. The driver is unscathed,
more fear than harm!)
Gendarmerie de l'Ain - Site officiel - vor etwa einer Woche
ACCIDENT SUR A404 À MONTRÉAL-LA-CLUSE
Nouveau modèle de Tesla volante sur glissière de décollage sur A404, sens
Bourg/Oyonnax, à hauteur de la fin du basculement. L'atterrissage s'est fait
en douceur. La conductrice est indemne, plus de peur que de mal!!!
]
A Tesla Model X found itself in a rather precarious position after crashing
on a highway [
https://www.carscoops.com/2019/02/select-tesla-model-3-test-drives-paused-china-first-tester-crashes/
] in France last week.
Limited details about this incident are known but it reportedly occurred on
the A404 highway toward Bourg/Oyonnax and images from the scene show the
white Model X positioned rather precariously on the guard rails.
It seems as though the electric SUV ended up in this rather weird position
after crashing into the start of the guard rail at speed and was simply
propelled up before coming to a rest. One photo reveals that the front
bumper has sustained some hefty damage and will clearly need to be replaced.
The passenger-side front wheel also appears to be a little bent, indicating
there may be some suspension damage.
We don’t know what state the underside of the Model X is in but if any
damage has been done to the battery pack, the Tesla might be sent straight
to a scrapyard never to be seen again on public roads.
It doesn’t appear as though anyone was injured in the crash – which is
rather fortunate. Earlier this month, we brought you shocking footage and
details of a Tesla Model 3 which crashed into a guardrail [
https://www.carscoops.com/2019/05/guardrail-impales-tesla-model-3-driver-makes-it-out-unhurt/
] in Dade County, Florida. The impact caused the guardrail to pierce the
sedan from front to back but remarkably, the driver escaped without any
injuries.
[© carscoops.com]
+
http://www.bikeexif.com/zero-sr-pikes-peak-hillclimb-electric-motorcycle
Racing To The Clouds: The Pikes Peak Zero SR/F
2019-05-25 The Race To The Clouds tends to be associated with
fire-breathing, custom-built four-wheelers and European rally cars ...
http://kickstart.bikeexif.com/wp-content/uploads/2019/05/zero-sr-pikes-peak-hillclimb-electric-motorcycle-5.jpg
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[EVDL] EVLN: sputnik sez Marussia Car May Become NTSU Sports EV.ru
https://sputniknews.com/russia/20190525107531-russia-marussia-project-electric-car/
Russia's Iconic Sports Car May Become Prototype for Advanced Electric
Vehicle
25.05.2019 Alexander Vilf
[image
https://cdn5.img.sputniknews.com/images/107533/42/1075334226.jpg
]
The Marussia project went bankrupt in 2014, seven years after showman
Nikolay Fomenko founded Marussia Motors, which became the first Russian
company to produce supercars in the country.
Engineers from Russia’s Novosibirsk State Technical University [
https://en.nstu.ru/
] (NTSU) have announced plans to create an electric car on the domestically
made sports car Marussia chassis, the NTSU press service reported.
The new project, which will be executed in cooperation with Novosibirsk’s
design bureau, Spektr, was earlier endorsed by the Novosibirsk region’s
ministry of industry and trade. The NTSU-Spektr agreement is slated to be
signed on 27 May on a hood of a restored Marussia.
“During the work, (the car’s) internal combustion engine will be replaced
with a powerful energy-efficient electric motor, the lithium-ion batteries
will be installed and the control system synthesised”, the press service
said, adding that “it will take a year and a half” to wrap up the work.
NTSU spokesman Alexander Shtang, for his part, underscored that the NTSU
possesses the necessary technology and expertise “to fulfil a breakthrough
and form a platform for the development of domestically made electric cars
with high technical characteristics”.
Technical support will be provided by the Vip-Service company which was the
official representative of Marussia Motors in Siberia between 2011 and 2014.
After Russian showman Nikolay Fomenko founded Marussia Motors in 2007,
several prototypes of Marussia supercars were then created, a process that
never turned into serial production. In 2014, the company declared
bankruptcy and ceased to exist.
[© sputniknews.com]
+ (Detroit media spewing koch-koolaid)
https://www.freep.com/story/money/cars/mark-phelan/2019/05/25/rivian-electric-pickup-truck/1199625001/
Electric pickups are coming, but does anyone really want them?
May 25, 2019 Just this year Amazon and Ford have led investments topping
$1.2 billion in Plymouth-based electric vehicle startup Rivian. Rivian's EV
pickup program also led ...
https://www.gannett-cdn.com/presto/2019/02/23/PDTF/2334dc37-ee29-481c-9182-bc9431fa07ad-JUMP_3_rivian.jpg
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[EVDL] EVLN: eFlyer4 e-plane> 3xFaster& 4xCheaper than driving (v)
https://electrek.co/2019/05/22/blackbird-100-electric-airplanes/
BlackBird adding 100+ Bye electric airplanes to on-demand service by 2020,
3x faster and 4x cheaper than driving
May. 22nd 2019 Phil Dzikiy
[image
https://i1.wp.com/electrek.co/wp-content/uploads/sites/3/2019/05/byeeflyer.jpg
video
https://youtu.be/YQSbt_hev1g
Aero-News Network Aero-TV: Bye Aerospace SunFlyer 4 - Pushing The Electric
Airplane Concept
]
[flyblackbird.com], an on-demand flight service that’s been called “Uber for
planes,” is partnering with Bye Aerospace to add more than 100 electric
airplanes to its platform. The companies say that the partnership will make
flying cheaper more affordable than driving for trips up to 300 miles.
Bye Aerospace announced that BlackBird has agreed to purchase its first 100
commercial 4-seat eFlyer 4 electric planes. BlackBird will also purchase 10
of Bye’s eFlyer 2 planes — Norway’s OSM Aviation ordered 60 of those planes
[
https://electrek.co/2019/04/11/norway-60-electric-airplanes/
] last month.
The eFlyer 4 is being billed as “the world’s first practical four-seat,
electric-powered plane.” It will be certified with the FAA after eFlyer 2
gains certification, a process that has already begun. Bye Aerospace says of
the eFlyer 4:
The energy cost for the electric eFlyer 4 is four times less expensive
than driving a conventional car per mile, three times faster, and requires
no aviation fuel, resulting in zero emissions and significantly lower noise
pollution compared to conventional aircraft. The affordability aspect alone
helps answer high overhead and drives replacement of today’s outdated legacy
general aviation aircraft fleets.
The idea is that flights on electric planes can be less expensive than
what’s currently offered — and far less expensive than a trip by gas-powered
car. According to the video below, the 4 seater will retail at $349,000 (vs.
2 seater trainer’s $249,00 price).
BlackBird notes how the lower costs of operating the electric planes will
have an effect on customers’ wallets in a Medium post:
These planes are 75% less expensive and 5–10 times faster than driving a
car. What’s that mean for you? Think about a place you love that’s five
hours away by car, likely costing more than $100 in gas each way. As soon as
next year, that same place will be 45min and $25 away with BlackBird.
Looking at the BlackBird app currently, prices vary greatly based on
locations and dates. The most reasonably priced flights generally operate
out of a number of California airports, in addition to Las Vegas, at least
for now. But the service also appears to be growing on the East Coast, where
BlackBird is offering flight bundles in the New York City area.
According to the San Francisco Chronicle, Bye Aerospace’s eFlyer 4 may be
FAA certified by Q4 2020. At that point, the planes will be able to start
carrying passengers through BlackBird.
Electrek’s Take
Along with Harbour Air’s planned all-electric seaplane fleet in the Pacific
Northwest, BlackBird’s partnership with Bye Aerospace looks to be one of the
first ventures that will get a fair amount of passengers into electric
planes.
If all goes according to plan, those passengers will be saving time and
money, and cutting travel emissions as soon as next year. So if you don’t
mind flying in a small plane — they’re certainly not for everyone — the
benefits are obvious. The mall planes also fly between more non-commercial
airports, for better or worse and the range isn’t yet known.
There are others in the space as well, like [lilium.com], which is currently
testing its all-electric five-seater air taxi [
https://electrek.co/2019/05/16/lilium-electric-fiveseater-airtaxi/
]. As carmakers race to gain a hold of the electric car market on the
ground, other companies are vying for a prime position in the skies.
[© electrek.co]
...
[video
https://youtu.be/WdPfw3XWyJQ
Review: Velomini Scoot and T1 Trailer
]
+
https://www.theglobeandmail.com/business/international-business/us-business/article-tesla-says-solar-factory-will-now-make-ev-chargers-and-other-products/
Tesla says solar factory will now make EV chargers and other products
May 15, 2019 - Tesla says solar factory will now make EV chargers and other
products ... as the company has drastically scaled back the U.S. solar
business it ...
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Re: [EVDL] EPRI TVA VW electric bus
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. Some random thoughts: The torque band on that motor ends abruptly at 4,000 RPM. after that, it's basically impossible to gain any more speed, time to shift. The SCT manual says that the motor is safe to 8,000 RPM before it frags, but I can't see how you would ever get it to that speed without shifting into first at 90 MPH. My car gets the same energy efficiency at 50 MPH in fourth that it does in third at 40 MPH. Of course, it draws more current, but it covers a mile in less time. I believe that the motor is more efficient at ~2,000 RPM than at 3,500. Given the increase in wind resistance, etc, this represents a significant discrepancy in efficiency. A 30 mile round-trip into town and back consumes identical quantities of energy, regardless of which gear I drive in. After sitting for six years, my motor set up a howl like a cat tangled in a fan belt when I first got it running again. It still does this off and on, don't know if it's bearings or what. I mostly just turn the stereo up and try not to think about it. Sometimes it sounds exactly like a jet plane coming in for a landing! Good for getting the attention of pedestrians!! On the SCT, there is a 3-3/4" hole cut in the conical shroud at the brush end of the motor, with a two-speed blower directing cooling air into the casing. Air exits through vents at the output shaft end. I don't know if there is an internal fan. During normal weather and driving, it runs warm to the touch. The controller may still be functional, but after this many years, any electrolytic capacitors in it's circuitry are due for replacement. Might be a good idea to just shotgun them all and get it over with. Any ceramic potted power resistors should be checked for crumbling and decomposition, and replaced with modern components. So, did your van come with the forks, or are you going to have to buy a new set? At 04:59 PM 5/25/2019, you wrote: A friend of mine in Belgium got one of these buses, and he had his local forklift repair shop put it back on the road. He mentioned that it handled like a forklift. Probably has to do with the ton of batteries. This is not exactly a conversion. The bus has been electric since new, and was built by Volkswagen in Germany as part of a collaboration with some other German companies including Siemens and Varta. The earlier Volkswagen buses used reduction gears, but that ended in 1967. This bus uses a double-jointed independent rear suspension system. I have removed the axles so that I can test the bus on the ground without it moving. Before I removed the axles, I turned them both at the same time which forced the transmission to turn the motor. Reverse is achieved by a switch on the dash. I assume that reverses the polarity. The negative cable into the controller from the battery pack is isolated from the frame of the bus and the body of the controller. I am aware that this is ancient technology. I do plan on having a more modern drivetrain in this or another bus at another time, but for my my purposes at this time, I want to have this one as original as possible with the likely exception of the batteries. I view the batteries as a relatively easily solved thing, although I have not decided on which direction I go with that. I want this to run with its stock drivetrain for its historic significance. It is pretty cool that VW was developing electric vehicles over 40 years ago. This bus in this configuration won't get driven regularly. I recently bought an electric VW Karmann Ghia from my friend, John Bryan, who pointed me towards this list/forum as he mentioned that it was very helpful for him and an overall great community. The Ghia needs new batteries (hopefully the same ones that I use in the bus). The Ghia will be a regular driver for me in the coming years. Drink 1 Cup Before Bed, Watch Your Body Fat Melt Like Crazy mayserve-magestor.com http://thirdpartyoffers.juno.com/TGL3131/5ce9faf2914c7ae70fb2st04duc ___ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
