Re: [EVDL] EVLN: Before Tesla was the tzero> an Alpha EV (v)
On 22 Jul 2019 at 15:09, Mark Abramowitz via EV wrote: > a note I received from Abas Goodarzi:... The man who lead the > AeroVironment team was Walley Ripple and Alek Brooks, however Allen > Cocconi tends to get credit for a lot If Dr Goodarzi worked with these people, why doesn't he know how to spell their names? Wally Rippel, Alec Brooks, and Alan Cocconi are well known pioneers in the US EV movement. He also misspells "led," and writes "the man [singular] who led the Aerovironment team was" and then proceeds to name two people. It's probably just carelessness, but this guy's a published PhD, for goodness' sake. Sheesh. David Roden - Akron, Ohio, USA EVDL Administrator = = = = = = = = = = = = = = = = = = = = = = = = = = = = = EVDL Information: http://www.evdl.org/help/ = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Note: mail sent to "evpost" and "etpost" addresses will not reach me. To send a private message, please obtain my email address from the webpage http://www.evdl.org/help/ . = = = = = = = = = = = = = = = = = = = = = = = = = = = = = ___ 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] EVLN: Tesla drops cheapest models prices (v)
I agree with Michael, Elon is the only billionaire putting his money where his mouth is. He is been so close several times of loosing his fortune for what? for doing all us a favor of bringing electrification and not dependency on oil, to have better and more solar, to have energy storage systems at home and help reduce the oversized world wide grid (that is all designed based on peak demand, not continuous demand), a person who is looking to create a backup of our own species in case of a catastrophe in our world.. what else? putting more of his money and ideas into trying to solve big cities mobility thanks to The boring Co. and latest, improve the human life and ability to easy access/boost the power of internet through Neuralik. Who else (Billionaire, extremely smart, visionary and truly committed) is pushing this in our world? bill gates, Bezos, Zuckerberg?, can't mention any car company CEO that would do that, they all are just looking for $$ not a real change for our society. https://www.youtube.com/watch?v=BXcgBfi4xxo On Sun, Jul 21, 2019 at 11:06 PM Michael Ross via EV wrote: > Dave, > > You seem to have a strong urge to rag on Tesla and Musk whenever you can. > That seems unwarranted. They have done a lot in an incredibly difficult > industrial environment, working at something no one believed possible, and > actually have a lot of success, though they may yet fail. We will all > benefit from their efforts. They tried to implement new ideas that were > worth trying. Musk and all the engineers and other employees deserve > praise, regardless if Musk acts stupid at times. Maybe you don't like the > PT Barnum stuff, but that too was helpful and perhaps necessary. > > < > http://www.avg.com/email-signature?utm_medium=email_source=link_campaign=sig-email_content=webmail > > > Virus-free. > www.avg.com > < > http://www.avg.com/email-signature?utm_medium=email_source=link_campaign=sig-email_content=webmail > > > <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > > On Sun, Jul 21, 2019 at 10:21 PM EVDL Administrator via EV < > ev@lists.evdl.org> wrote: > > > On 21 Jul 2019 at 8:35, brucedp5 via EV wrote: > > > > > Tesla also lowered the starting price of its mass-market Model 3 to > > $38,990 > > > > Uh ... so what happened to that $30k electric car we heard Musk talk > > about > > for all those years? It seems to have tipped off the road into the same > > ditch as the electric Chevette that GM promised us in 1978. > > > > David Roden - Akron, Ohio, USA > > EVDL Administrator > > > > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > > EVDL Information: http://www.evdl.org/help/ > > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > > Note: mail sent to "evpost" and "etpost" addresses will not > > reach me. To send a private message, please obtain my > > email address from the webpage http://www.evdl.org/help/ . > > = = = = = = = = = = = = = = = = = = = = = = = = = = = = = > > > > > > ___ > > 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) > > > > > > -- > Michael E. Ross > (919) 585-6737 Land > (919) 901-2805 Cell and Text > (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> Tablet, > Google Phone and Text > -- next part -- > An HTML attachment was scrubbed... > URL: < > http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20190721/e7f03564/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) > > -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20190722/3fc4e579/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)
Re: [EVDL] EVLN: Before Tesla was the tzero> an Alpha EV (v)
Your post partially agrees and partially disagrees with a note I received from Abas Goodarzi: “I am the one that took the analog design using dual motor from AeroVironment and made the single motor with digital control. AeroVironment hated my guts and Delco Remy and Delco Electronics technically reported to me. The man who lead the AeroVironment team was Walley Ripple and Alek Brooks, however Allen Cocconi tends to get credit for a lot, but Impact was brain child of Walley Ripple and I am proud to claim a lot on EV1, first mass production EV using IGBT and digital controller with integrated controller.” - Mark Sent from my Fuel Cell powered iPhone > On Jul 22, 2019, at 2:49 PM, Mark Abramowitz wrote: > > More specific info straight from the horse’s mouth: > > “I was the design engineer for powertrain 12 hours a day, hard core > engineering, including doing the actual tests, since there was no spec > written yet. Even at USH I am hand's on with > project/system/control/components engineering. > My core competency is high power/torque density advanced motor design and > inverter design.” > > - Mark > > Sent from my Fuel Cell powered iPhone > >> On Jul 22, 2019, at 6:32 AM, Mark Abramowitz wrote: >> >> I believe that Abas Goodarzi was responsible for the development of the >> electric drivetrain for the EV1. >> >> - Mark >> >> Sent from my Fuel Cell powered iPhone >> >>> On Jul 21, 2019, at 4:50 PM, paul dove via EV wrote: >>> >>> Actually, the GM EV1 was first and Alan Cocconi designed it as well. He did >>> it all in his garage. After the prototype AC Delco took over for the >>> production version. >>> >>> Sent from my iPhone >>> On Jul 21, 2019, at 8:25 AM, brucedp5 via EV wrote: Alan Cocconi >>> >>> ___ >>> 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) >>> >> >> > > ___ 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] EVLN: Before Tesla was the tzero> an Alpha EV (v)
More specific info straight from the horse’s mouth: “I was the design engineer for powertrain 12 hours a day, hard core engineering, including doing the actual tests, since there was no spec written yet. Even at USH I am hand's on with project/system/control/components engineering. My core competency is high power/torque density advanced motor design and inverter design.” - Mark Sent from my Fuel Cell powered iPhone > On Jul 22, 2019, at 6:32 AM, Mark Abramowitz wrote: > > I believe that Abas Goodarzi was responsible for the development of the > electric drivetrain for the EV1. > > - Mark > > Sent from my Fuel Cell powered iPhone > >> On Jul 21, 2019, at 4:50 PM, paul dove via EV wrote: >> >> Actually, the GM EV1 was first and Alan Cocconi designed it as well. He did >> it all in his garage. After the prototype AC Delco took over for the >> production version. >> >> Sent from my iPhone >> >>> On Jul 21, 2019, at 8:25 AM, brucedp5 via EV wrote: >>> >>> Alan Cocconi >> >> ___ >> 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) >> > > ___ 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] Range+grip: Leaf EV tires that increase range
Mr. Sharkey via EV wrote: Bill Egan, not Tom, I realized that as soon as I pressed 'send', but you can't suck the data back to correct. Catching tire wear before it shows in the tread is preferable to learning the hard way, after the rubber is deposited as dust all along the roadway. Was it here that I read that someone was advocating using a thermal imager to check the heat in the tires after a run, and adjust the pressure so that the tire heats (and presumably wears) evenly across the entire tread footprint? It might be. I think it's also something that racers routinely do on the track. -- In software development, there are two kinds of error: Conceptual errors, implementation errors, and off-by-one errors. (anonymous) -- Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.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] Range+grip: Leaf EV tires that increase range
>> 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 preferable to learning the hard way, after the rubber is deposited as dust all along the roadway. Was it here that I read that someone was advocating using a thermal imager to check the heat in the tires after a run, and adjust the pressure so that the tire heats (and presumably wears) evenly across the entire tread footprint? ___ 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] EVLN: Before Tesla was the tzero> an Alpha EV (v)
I *know* him, and he is both an engineer and a manager (actually a CEO now). - Mark Sent from my Fuel Cell powered iPhone > On Jul 22, 2019, at 7:45 AM, paul dove via EV wrote: > > I googled him. Looks to me like he is a manager not a design engineer. > > On Monday, July 22, 2019, 8:32:13 AM CDT, Mark Abramowitz > wrote: > > I believe that Abas Goodarzi was responsible for the development of the > electric drivetrain for the EV1. > > - Mark > > Sent from my Fuel Cell powered iPhone > >> On Jul 21, 2019, at 4:50 PM, paul dove via EV wrote: >> >> Actually, the GM EV1 was first and Alan Cocconi designed it as well. He did >> it all in his garage. After the prototype AC Delco took over for the >> production version. >> >> Sent from my iPhone >> >>> On Jul 21, 2019, at 8:25 AM, brucedp5 via EV wrote: >>> >>> Alan Cocconi >> >> ___ >> 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) > > -- next part -- > An HTML attachment was scrubbed... > URL: > <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20190722/116e254f/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) > ___ 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] EVLN: Before Tesla was the tzero> an Alpha EV (v)
You read that on Wikipedia and it is not what I said. Alan was an independent contractor he did not work for Aeroenvironment or GM and he designed the first EV1 prototype drive electronics in his garage. He quit when AC Delco claimed they got all of GM's electronics work. It took them some time to actually get their first design to work after AC Delco took over. They had all sorts of EMI problems after Alan left. On Monday, July 22, 2019, 10:12:51 AM CDT, Lee Hart via EV wrote: paul dove via EV wrote: > I don’t know what that means I assume that is a company’s name, > however, what I said was correct. Alan designed the inverter and > electronics for the EV1. Paul is right. It went like this: Aerovironment built GM's 1987 "SunRaycer" solar powered race car. It so impressed GM that they contracted with AeroVironment to build a prototype electric car. That car was named the "Impact", and delivered to GM in 1990. Alan Cocconi worked for AeroVironment, and designed the Impact's inverter. It was air-cooled and used MOSFET transistors. GM completely re-designed the Impact into the EV1. The first EV1's became available in 1996. They contracted out the inverter design to Hughes Aircraft, who re-designed it to be liquid-cooled and use IGBTs (among many other changes). Cocconi's inspiration was there; but GM completely designed out any trace of his work. Cocconi went on to design the Tzero EV. I think it was the first successful EV to use thousands of 18650 lithium cells for power, and was the inspiration for Tesla's Roadster. Cocconi also V2G (Vehicle to Grid) where an EV can feed power back into the grid, and "reductive" charging, where the EV's motor is used as a transformer during charging. -- In software development, there are two kinds of error: Conceptual errors, implementation errors, and off-by-one errors. (anonymous) -- Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.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) -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20190722/ea1702a2/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)
Re: [EVDL] EVLN: Before Tesla was the tzero> an Alpha EV (v)
I googled him. Looks to me like he is a manager not a design engineer. On Monday, July 22, 2019, 8:32:13 AM CDT, Mark Abramowitz wrote: I believe that Abas Goodarzi was responsible for the development of the electric drivetrain for the EV1. - Mark Sent from my Fuel Cell powered iPhone > On Jul 21, 2019, at 4:50 PM, paul dove via EV wrote: > > Actually, the GM EV1 was first and Alan Cocconi designed it as well. He did > it all in his garage. After the prototype AC Delco took over for the > production version. > > Sent from my iPhone > >> On Jul 21, 2019, at 8:25 AM, brucedp5 via EV wrote: >> >> Alan Cocconi > > ___ > 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) > -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20190722/116e254f/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)
Re: [EVDL] EVLN: Before Tesla was the tzero> an Alpha EV (v)
I believe that Abas Goodarzi was responsible for the development of the electric drivetrain for the EV1. - Mark Sent from my Fuel Cell powered iPhone > On Jul 21, 2019, at 4:50 PM, paul dove via EV wrote: > > Actually, the GM EV1 was first and Alan Cocconi designed it as well. He did > it all in his garage. After the prototype AC Delco took over for the > production version. > > Sent from my iPhone > >> On Jul 21, 2019, at 8:25 AM, brucedp5 via EV wrote: >> >> Alan Cocconi > > ___ > 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) > ___ 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] skinny-tire-guy: Leaf EV tires that increase range
[ref
https://www.mail-archive.com/ev@lists.evdl.org/msg26897.html
]
Decades ago I was asked by:
William Egan - Retired - Chief Engineer/Team Leader - Goodyear Tire ...
https://www.linkedin.com/in/william-egan-49011222
to weigh each of my wheels while still on my EV. I found I could do this at
a dump/refuse center. Normally, the public would drive up onto the scale
plate (whole), and then weigh again after they had dropped off their
junk/refuse. Instead, I went to the center on Sunday when they were closed,
but the digital readouts on the scales were still on.
I drove each wheel, one at a time, onto the scale, documenting each wheel's
weight. The Goodyear rep (now retired) used those weights to have me adjust
the tire pressure I used on my Goodyear tires.
My rear tires carried more RWD vehicle weight than the front tires. I was
advised to set my front tires to ~45psi, and my rear tires to ~55psi.
(Someone verify the following) I am thinking the reason the i3 EV has wider
tires in the rear is the i3 weight distribution front-to-rear (like my old
EV) is not the same. If after weighing each of Lawrence's Leaf EV wheels, it
might be, Lawrence would use the wider i3 supported tires in front at a high
tire pressure, and the narrower i3 supported tire in the rear at a lower
tire pressure.
The last thing I can suggest, is if Lawrence is eyeing using i3
sized/supported tires, he chat with the i3 forum folk to know which brand
and model tire works well for their i3 EVs.
For EVLN EV-newswire posts use:
http://evdl.org/archive/
{brucedp.neocities.org}
--
Sent from: http://electric-vehicle-discussion-list.413529.n4.nabble.com/
___
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Re: [EVDL] EVLN: Before Tesla was the tzero> an Alpha EV (v)
V2G was done by others as well. My daily driver for 3 years (2005-2008) was a US Electricar truck that was re-converted in 1995 (original conversion by USE in 1994) to receive a “WaveDriver” inverter as well as a large 3-phase inductor and a modified AVCON charging plug to allow connection to a 3-phase 208V utility grid for bi-directional power transfer at up to 80 Amps (~30kW of charging/discharging power). WaveDriver (the company) apparently was notorious for blowing up batteries, I heard a rumor that they managed to set a lead-acid pack on fire by (too) Fast-Charging it. Note the year: 1995 was long before anyone thought about V2G, yet that was the year this (operational) truck was commissioned to PG together with a stationary battery pack and bi-directional inverter to have 2 test beds. I saw the commissioning papers from that year. I later sold this truck, last I heard it is available for sale at the East Coast. Cor. Sent from Mail for Windows 10 From: Lee Hart via EV Sent: Monday, July 22, 2019 8:12 AM To: Electric Vehicle Discussion List Cc: Lee Hart Subject: Re: [EVDL] EVLN: Before Tesla was the tzero> an Alpha EV (v) paul dove via EV wrote: > I don’t know what that means I assume that is a company’s name, > however, what I said was correct. Alan designed the inverter and > electronics for the EV1. Paul is right. It went like this: Aerovironment built GM's 1987 "SunRaycer" solar powered race car. It so impressed GM that they contracted with AeroVironment to build a prototype electric car. That car was named the "Impact", and delivered to GM in 1990. Alan Cocconi worked for AeroVironment, and designed the Impact's inverter. It was air-cooled and used MOSFET transistors. GM completely re-designed the Impact into the EV1. The first EV1's became available in 1996. They contracted out the inverter design to Hughes Aircraft, who re-designed it to be liquid-cooled and use IGBTs (among many other changes). Cocconi's inspiration was there; but GM completely designed out any trace of his work. Cocconi went on to design the Tzero EV. I think it was the first successful EV to use thousands of 18650 lithium cells for power, and was the inspiration for Tesla's Roadster. Cocconi also V2G (Vehicle to Grid) where an EV can feed power back into the grid, and "reductive" charging, where the EV's motor is used as a transformer during charging. -- In software development, there are two kinds of error: Conceptual errors, implementation errors, and off-by-one errors. (anonymous) -- Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.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) -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20190722/f167dbe0/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)
Re: [EVDL] Range+grip: Leaf EV tires that increase range
Leaf is FWD, I3 is RWD. On Mon, 22 Jul 2019 at 17:16, Lawrence Rhodes via EV wrote: > > Narrower tires is exactly what I am looking for. If the i3 which weighs the > same as the Leaf can get away with two sets of smaller tires I would like to > explore that. I run my tires at full pressure at all times. 40psi. I have > been told that the i3 uses two sets of tires. 155 in front and 175 in the > rear. The Leaf is 205. The i3 runs the wider tires in the rear at 44psi. > The front less. Nissan recommends somewhere in the 30's. I suspect the i3 > is more efficient than the Leaf partly because of the tire choices. This is > the easiest course to try. Since the i3 standard is two different sizes and > pressures a compromise on the Leaf might be 165 all the way around with full > pressure. Or the 175 all around. I am sure this would be just fine. Yes > not as much traction but I am not running the Indy 500. As long as the total > weight limit of the tires is at or above the manufacturers recommended gross > weight you should be safe. Here is a green car reports on the BMW tire > choice. https://www.greencarreports.com/news/1083080_bmw-i3s-tall-skinny-tires-to-boost-efficiency-and-cut-noise > > > > -- next part -- > An HTML attachment was scrubbed... > URL: > <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20190722/7319afe8/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) > -- Paul Compton www.morini-mania.co.uk www.paulcompton.co.uk (YouTube channel) ___ 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] Range+grip: Leaf EV tires that increase range
Lawrence Rhodes via EV wrote: After finding tall skinny tires grip better in the rain thus eliminating that concern it appears the heavier Tesla has radically different mpge but similar styling to the total winner Ioniq by Hyundai . The light bubble cars did better in the city while the Tesla better on the road. In going down the list many cars you would think should do well were horrible. It seems regen braking must be part of the equation. I suspect drive trains and aerodynamics can be improved on many models. Lawrence Rhodes https://www.fueleconomy.gov/feg/PowerSearch.do?action=noform=1=1984=2020=Electric=1=Comb=0=10 Weight matters more at low speeds. Aerodynamics matters more at high speeds. This is in part why a heavy aerodynamic car can outperform a lightweight but un-aerodynamic car at freeway speeds. Aerodynamics is a tricky problem. Good shapes are judged as "ugly" by most people. So most cars are full of stylistic swoops and ridges for looks. The published specs for drag coefficients are often doctored or even made up by Marketing. It's entertaining to read about the battles between AeroVironment and GM on the EV1 styling. MacCready was a world-class expert on aerodynamics; he knew what he was doing. But GM's stylists hated the looks, and did everything they could to "fix" it to suit the eye rather than the wind tunnel. -- In software development, there are two kinds of error: Conceptual errors, implementation errors, and off-by-one errors. (anonymous) -- Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.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] Range+grip: Leaf EV tires that increase range
After finding tall skinny tires grip better in the rain thus eliminating that concern it appears the heavier Tesla has radically different mpge but similar styling to the total winner Ioniq by Hyundai . The light bubble cars did better in the city while the Tesla better on the road. In going down the list many cars you would think should do well were horrible. It seems regen braking must be part of the equation. I suspect drive trains and aerodynamics can be improved on many models. Lawrence Rhodes https://www.fueleconomy.gov/feg/PowerSearch.do?action=noform=1=1984=2020=Electric=1=Comb=0=10 -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20190722/51f885a6/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)
Re: [EVDL] Range+grip: Leaf EV tires that increase range
Lawrence Rhodes via EV wrote: The i3 runs the wider tires in the rear at 44psi. The Nissan Leaf recommends somewhere in the 30's. I suspect the i3 is more efficient than the Leaf partly because of the tire choices. Our 2013 Leaf has 30k miles on it, and I can say for sure that the stock tire pressure is too low. The tires are almost worn out, and are especially worn at the outside edges -- what you would expect with under-inflation. This is despite them only being on for 8 months of the year (we have four snow tires on it in the winter). Nissan recommends 36 psi. The tires are Bridgestone Ecopia, and rated for 44 psi max pressure. So this spring I went to 40 psi. That improved miles/KWH about 5-10%. The ride is a littler harsher, but there is no detectable degradation in handling or wet weather performance. I should note that the Ecopia's are worthless in snow and ice! -- In software development, there are two kinds of error: Conceptual errors, implementation errors, and off-by-one errors. (anonymous) -- Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.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] Range+grip: Leaf EV tires that increase range
Narrower tires is exactly what I am looking for. If the i3 which weighs the same as the Leaf can get away with two sets of smaller tires I would like to explore that. I run my tires at full pressure at all times. 40psi. I have been told that the i3 uses two sets of tires. 155 in front and 175 in the rear. The Leaf is 205. The i3 runs the wider tires in the rear at 44psi. The front less. Nissan recommends somewhere in the 30's. I suspect the i3 is more efficient than the Leaf partly because of the tire choices. This is the easiest course to try. Since the i3 standard is two different sizes and pressures a compromise on the Leaf might be 165 all the way around with full pressure. Or the 175 all around. I am sure this would be just fine. Yes not as much traction but I am not running the Indy 500. As long as the total weight limit of the tires is at or above the manufacturers recommended gross weight you should be safe. Here is a green car reports on the BMW tire choice. https://www.greencarreports.com/news/1083080_bmw-i3s-tall-skinny-tires-to-boost-efficiency-and-cut-noise -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20190722/7319afe8/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)
Re: [EVDL] EVLN: Before Tesla was the tzero> an Alpha EV (v)
paul dove via EV wrote: > I don’t know what that means I assume that is a company’s name, > however, what I said was correct. Alan designed the inverter and > electronics for the EV1. Paul is right. It went like this: Aerovironment built GM's 1987 "SunRaycer" solar powered race car. It so impressed GM that they contracted with AeroVironment to build a prototype electric car. That car was named the "Impact", and delivered to GM in 1990. Alan Cocconi worked for AeroVironment, and designed the Impact's inverter. It was air-cooled and used MOSFET transistors. GM completely re-designed the Impact into the EV1. The first EV1's became available in 1996. They contracted out the inverter design to Hughes Aircraft, who re-designed it to be liquid-cooled and use IGBTs (among many other changes). Cocconi's inspiration was there; but GM completely designed out any trace of his work. Cocconi went on to design the Tzero EV. I think it was the first successful EV to use thousands of 18650 lithium cells for power, and was the inspiration for Tesla's Roadster. Cocconi also V2G (Vehicle to Grid) where an EV can feed power back into the grid, and "reductive" charging, where the EV's motor is used as a transformer during charging. -- In software development, there are two kinds of error: Conceptual errors, implementation errors, and off-by-one errors. (anonymous) -- Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.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] EVLN: Before Tesla was the tzero> an Alpha EV (v)
I don’t know what that means I assume that is a company’s name, however, what I said was correct. Alan designed the inverter and electronics for the EV1 Sent from my iPhone > On Jul 22, 2019, at 2:41 AM, Paul Compton via EV wrote: > > AeroVironment Impact, not GM EV1. > >> On Mon, 22 Jul 2019 at 04:04, paul dove via EV wrote: >> >> Actually, the GM EV1 was first and Alan Cocconi designed it as well. He did >> it all in his garage. After the prototype AC Delco took over for the >> production version. >> >> Sent from my iPhone >> >>> On Jul 21, 2019, at 8:25 AM, brucedp5 via EV wrote: >>> >>> Alan Cocconi >> >> ___ >> 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) >> > > > -- > Paul Compton > www.morini-mania.co.uk > www.paulcompton.co.uk (YouTube channel) > ___ > 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) > ___ 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] Generators, PVs : % Plan for power cuts from heatwave wildfires %
https://www.nytimes.com/2019/07/22/us/california-wildfires-costs.html
California, Wary of More Wildfires ... generators are necessary because the
power company
has announced that this year it will turn off the power when fire risk is
high ... "we are safer
today than we were yesterday,” ...
... Made worse by climate change, wildfires are adding a mounting financial
burden in
California ... firefighters in the Northwest have shifted their attention to
Alaska, where more
than 900,000 acres have burned ... “All this stuff burned, but it’s ready
to burn again,” ...
... worried residents are taking their own steps, buying generators and
batteries so they
can disconnect from the grid. The California Solar and Storage Association
says it has seen
a spike in interest in home battery systems. “Those people who do have solar
are now coming
back for battery backup,” ... “We’re seeing more and more of that over the
last three or four
years now, because of the threat of wildfires, the threat of an earthquake.”
...
... she and her husband decided last fall that they needed their own energy
storage system ... If
she and her family need to get out because of a fire, she said, she wants to
be able to keep her
Nissan Leaf electric car charged ... “Me getting a battery is more about
emergency preparedness,” ...
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Re: [EVDL] EVLN: Before Tesla was the tzero> an Alpha EV (v)
AeroVironment Impact, not GM EV1. On Mon, 22 Jul 2019 at 04:04, paul dove via EV wrote: > > Actually, the GM EV1 was first and Alan Cocconi designed it as well. He did > it all in his garage. After the prototype AC Delco took over for the > production version. > > Sent from my iPhone > > > On Jul 21, 2019, at 8:25 AM, brucedp5 via EV wrote: > > > > Alan Cocconi > > ___ > 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) > -- Paul Compton www.morini-mania.co.uk www.paulcompton.co.uk (YouTube channel) ___ 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] EVrs vs EVrs: redneck douchebaggery harasses Teslas
https://insideevs.com/news/360856/video-unplug-tesla-rude/
... Tesla driver unplugging another Tesla ... (v)
% Sad, now that there are far more EV drivers on the road, drivers are being
just plain nasty
to each other. EV old timers remember back in the early days when EV
drivers behaved
with honor as EV ambassadors (good-deed-do'ers) ...
You'd think its enough that the EV haters are doing evil, now drivers
are doing it to each
other ... : sigh :
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Re: [EVDL] Range+grip: Leaf EV tires that increase range
>> 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" wide, 13" rims with 175-70R13's, which is the only size that I'm aware of the Invicta GLR's being made in. The most significant handling upgrade for this chassis is going to 14" rims, they were stock on the GTI versions of the Rabbit. I swapped over to 195-60R14's on my diesel Rabbit on OEM 6" wide rims, and it changed the handling of the car from shopping cart to go kart. My EV has full race-prep suspension with body stiffening braces throughout, urethane bushings, GTI anti-sway bars, Koni shocks, etc, although I probably won't be doing any autoX racing, so handling of the new tires just needs to manage normal street-duty specs. Anything over 14" makes these cars look silly, and adversely alters the handling. Worse, VW uses hub-centric wheels, so virtually all after market wheels and OEM wheels from other manufacturers never really run true. Even if I wanted to go to a 15" wheel, finding a 4x100 lug pattern wheel with the proper hub-centric fit is a lottery game, with worse odds. And really drawing it out, nearly all after market wheels will not have the proper ET (offset). The VW strut geometry is designed around the offset of the wheel. Changing the offset throws handling out. The design is that a line drawn down the vertical axis of the strut to the pavement needs to hit the ground outside the center of the tire. Wheels with incorrect offset disturb this. In extreme cases, the car then attempts to self-correct skids by biasing the steering *out* of the skid instead of into it, worsening the danger. As you might be able to tell, I'm a little particular about messing with the German engineering that went into my cars. ___ 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)
