Re: [EVDL] Motorola EV Corvette (was: [ EV Digest, Vol 119, Issue 8)
On 20 Sep 2022 at 21:34, Ken McGraw via EV wrote: > Renaissance Cars company http://evdl.org/docs/cd_tropica.pdf David Roden, EVDL moderator & general lackey To reach me, don't reply to this message; I won't get it. Use my offlist address here : http://evdl.org/help/index.html#supt = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = I distrust people who know well what God wants them to do, because I notice that it always coincides with their own desires. -- Susan B Anthony = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
Re: [EVDL] Motorola EV Corvette (was: [ EV Digest, Vol 119, Issue 8)
Interesting but Renaissance Cars company, I was on the board of cad/cam an entire car from scratch , [image0.jpeg] [image1.png] aluminum space frame and plastic body ……I still own #2 and #16….16 is one of my drivers…..full electric in 1995…..the bastards shuts us down…..KLM Sent from my iPad On Sep 20, 2022, at 4:28 PM, EV List Lackey via EV wrote: On 20 Sep 2022 at 17:16, Richard Rowland via EV wrote: Interesting story from the 70's Intriguing! This seems to be the story's origin: https://www.thedrive.com/culture/we-found-motorolas-secret-chevy-corvette-ev- prototype-from-the-1990s or https://v.gd/NbYpwY The article says that it's a 1987 Corvette purchased used with 64k miles on it, and converted by Motorola Automotive. Motorola apparently started the project in 1993. One wonders why an organization with presumably deep pockets had to start with a used glider. The article's author calls this an "EV prototype," but I suspect that it's more apt to have been a test bed for a prototype EV *drive system,* maybe on a limited budget. Motorola made their name in mobile electronics over the first 2/3 or so of the 20th century - car radios, transceivers. I rode in taxicabs in the mid- 1960s, and every one of them had a Motorola radio for dispatching. So a little possibly irresponsible speculation: maybe Motorola management looked at GM's 1990 Impact prototype and the Hughes AC "Vector Drive," and wondered whether Motorola might catch some of the potential EV market. The article says that Starting and driving the EV Vette was pretty seamless. The driver merely had to insert the key and turn it, taking care not to press the throttle while not in gear, since the motor would turn ... the documentation recommended using first gear for slow speed driving up to 30 mph. Otherwise, Motorola suggested drivers cruise around in second gear, then allow the automatic overdrive function that the gas-powered Vette already had to take over at higher speeds. That might suggest that it's a series DC motor. But then we see: A paper marked "EV Power" states that at 320 volts and 1,000 amps, the car, in theory, will output 428 hp And that sounds more like an AC induction drive of the time. The Impact, Hughes, and AC Propulsion drives all ran in the 300-400 volt range, though not at 1000 amps. But if the author interpreted the Motorola doc correctly, it doesn't specifically say that THIS drive was 1000 amps and 400 kW, just that such was POSSIBLE. I'm not an engineer, so my speculation there may be off. the electric heater is made by a company named Russco That could be more evidence that this was a drive test bed, using as many standard conversion components as possible to keep cost down. EVDL old-timers probably remember Russco. Russ Kaufmann built those liquid heaters, and other conversion components, including a controller and a range of chargers, some of them PFC. Bummer that the article's author wasn't more knowledgeable about EVs. One of us might have figured out a LOT more, given the same opportunity to nose around it. Does anyone here live close to Gurnee, Illinois? David Roden, EVDL moderator & general lackey To reach me, don't reply to this message; I won't get it. Use my offlist address here : http://evdl.org/help/index.html#supt = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = How many spells could a spell Czech check, if a spell Czech could spell cheque? = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields HELP: http://www.evdl.org/help/ -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20220920/55dcc4a4/attachment.htm> -- next part -- A non-text attachment was scrubbed... Name: image0.jpeg Type: image/jpeg Size: 132211 bytes Desc: image0.jpeg URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20220920/55dcc4a4/attachment.jpeg> -- next part -- A non-text attachment was scrubbed... Name: image1.png Type: image/png Size: 1265619 bytes Desc: image1.png URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20220920/55dcc4a4/attachment.png> ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
[EVDL] Motorola EV Corvette (was: [ EV Digest, Vol 119, Issue 8)
On 20 Sep 2022 at 17:16, Richard Rowland via EV wrote: > Interesting story from the 70's Intriguing! This seems to be the story's origin: https://www.thedrive.com/culture/we-found-motorolas-secret-chevy-corvette-ev- prototype-from-the-1990s or https://v.gd/NbYpwY The article says that it's a 1987 Corvette purchased used with 64k miles on it, and converted by Motorola Automotive. Motorola apparently started the project in 1993. One wonders why an organization with presumably deep pockets had to start with a used glider. The article's author calls this an "EV prototype," but I suspect that it's more apt to have been a test bed for a prototype EV *drive system,* maybe on a limited budget. Motorola made their name in mobile electronics over the first 2/3 or so of the 20th century - car radios, transceivers. I rode in taxicabs in the mid- 1960s, and every one of them had a Motorola radio for dispatching. So a little possibly irresponsible speculation: maybe Motorola management looked at GM's 1990 Impact prototype and the Hughes AC "Vector Drive," and wondered whether Motorola might catch some of the potential EV market. The article says that > Starting and driving the EV Vette was pretty seamless. The driver > merely had to insert the key and turn it, taking care not to press the > throttle while not in gear, since the motor would turn ... the > documentation recommended using first gear for slow speed driving up > to 30 mph. Otherwise, Motorola suggested drivers cruise around in > second gear, then allow the automatic overdrive function that the > gas-powered Vette already had to take over at higher speeds. That might suggest that it's a series DC motor. But then we see: > A paper marked "EV Power" states that at 320 volts and 1,000 amps, the > car, in theory, will output 428 hp And that sounds more like an AC induction drive of the time. The Impact, Hughes, and AC Propulsion drives all ran in the 300-400 volt range, though not at 1000 amps. But if the author interpreted the Motorola doc correctly, it doesn't specifically say that THIS drive was 1000 amps and 400 kW, just that such was POSSIBLE. I'm not an engineer, so my speculation there may be off. > the electric heater is made by a company named Russco That could be more evidence that this was a drive test bed, using as many standard conversion components as possible to keep cost down. EVDL old-timers probably remember Russco. Russ Kaufmann built those liquid heaters, and other conversion components, including a controller and a range of chargers, some of them PFC. Bummer that the article's author wasn't more knowledgeable about EVs. One of us might have figured out a LOT more, given the same opportunity to nose around it. Does anyone here live close to Gurnee, Illinois? David Roden, EVDL moderator & general lackey To reach me, don't reply to this message; I won't get it. Use my offlist address here : http://evdl.org/help/index.html#supt = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = How many spells could a spell Czech check, if a spell Czech could spell cheque? = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
[EVDL] can lithium mining be environmentally friendly ?
How a Quebec Lithium Mine May Help Make Electric Cars Affordable https://www.nytimes.com/2022/09/20/business/electric-vehicles-lithium-quebec.html About 350 miles northwest of Montreal, amid a vast pine forest, is a deep mining pit with walls of mottled rock. The pit has changed hands repeatedly and been mired in bankruptcy, but now it could help determine the future of electric vehicles. ... Dozens of lithium mines are in various stages of development in Canada and the United States. Canada has made it a mission to become a major source of raw materials and components for electric vehicles. ... After the price of lithium fell by half from 2017 to 2020, the mine’s previous owner, the Chinese battery maker CATL, shut down operations ... The Inflation Reduction Act, which President Biden signed in August, has raised the stakes for the auto industry. To qualify for several incentives and subsidies in the law, which go to car buyers and automakers and are worth a total of $10,000 or more per electric vehicle, battery makers must use raw materials from North America or a country with which the United States has a trade agreement. ... One of the first things that Sayona [new mine owner] had to do when it took over the La Corne mine was pump out water that had filled the pit, exposing terraced walls of dark and pale stone from previous excavations. Lighter rock contains lithium. After being blasted loose and crushed, the rock is processed in several stages to remove waste material. A short drive from the mine, inside a large building with walls of corrugated blue metal, a laser scanner uses jets of compressed air to separate light-colored lithium ore. The ore is then refined in vats filled with detergent and water, where the lithium floats to the surface and is skimmed away. The end product looks like fine white sand but it is still only about 6 percent lithium. The rest includes aluminum, silicon and other substances. The material is sent to refineries, most of them in China, to be further purified. ... “The productivity will be a lot better because we are correcting everything,” Mr. Desrosiers said. In a few years, the company plans to upgrade the facility to produce lithium carbonate, which contains a much higher concentration of lithium than the raw metal extracted from the ground. The operation will get its electricity from Quebec’s abundant hydropower plants, and will use only recycled water in the separation process, Mr. Desrosiers said. Still, environmental activists are watching the project warily. ... Most people support the lithium mine, but a significant minority oppose it, Mr. D’Astous said. Opponents fear that another lithium mine being developed by Sayona in nearby La Motte, Quebec, could contaminate an underground river. -- This article makes Sayona look pretty angelic. If they can succeed in producing lithium without any significant CO2 output, that might drastically improve the advantage of EVs, where the current construction of EVs produces considerably more greenhouse gases than for construction of ICEs. Peri << Annoyed by leaf blowers ? https://quietcleanseattle.org/ >> ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
Re: [EVDL] EV Digest, Vol 119, Issue 8
Interesting story from the 70's Motorola's electric Corvette came out of nowhere | Popular Science (popsci.com)<https://www.popsci.com/technology/electric-sportscar-corvette-motorola-history/?utm_source=Newsletter+Subscribers_campaign=55ea4ded3b-EMAIL_CAMPAIGN_2022_09_19_04_52_medium=email_term=0_387276506e-55ea4ded3b-515112674#affinity=Cars> [https://www.popsci.com/uploads/2022/09/16/electric-chevy-corvette-motorola-prototype.jpg?auto=webp]<https://www.popsci.com/technology/electric-sportscar-corvette-motorola-history/?utm_source=Newsletter+Subscribers_campaign=55ea4ded3b-EMAIL_CAMPAIGN_2022_09_19_04_52_medium=email_term=0_387276506e-55ea4ded3b-515112674#affinity=Cars> Motorola's electric Corvette came out of nowhere | Popular Science<https://www.popsci.com/technology/electric-sportscar-corvette-motorola-history/?utm_source=Newsletter+Subscribers_campaign=55ea4ded3b-EMAIL_CAMPAIGN_2022_09_19_04_52_medium=email_term=0_387276506e-55ea4ded3b-515112674#affinity=Cars> The super-secret story behind the world’s only electric Motorola Corvette. The electric C4 Corvette recently turned up at a salvage yard in Illinois, along with a stack of documentation showing ... www.popsci.com You can reach the person managing the list at ev-ow...@lists.evdl.org When replying, please edit your Subject line so it is more specific than "Re: Contents of EV digest..." Also, please be careful not to append the entire digest to your reply. Many mail systems do this by default. Trim or delete the digest text from the bottom of your message, and quote only the parts to which you're replying. Subject: Digest Footer ___ EV@lists.evdl.org For general EVDL support, see https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fevdl.org%2Fhelp%2Fdata=05%7C01%7C%7C1d5dc7bfc42647ecee8708da9755395f%7C84df9e7fe9f640afb435%7C1%7C0%7C637988689579138817%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7Csdata=vV4vO0AVoy4PAGoyR3KI5dyQfkTDqDtoQkmWSFVGWJA%3Dreserved=0 https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Flists.evdl.org%2Flistinfo.cgi%2Fev-evdl.orgdata=05%7C01%7C%7C1d5dc7bfc42647ecee8708da9755395f%7C84df9e7fe9f640afb435%7C1%7C0%7C637988689579138817%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7Csdata=pGetDc%2BeQJT%2BAGEsULJqSIqwkuRF3GJlGd2JRwNSs44%3Dreserved=0 -- End of EV Digest, Vol 119, Issue 8 ** -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20220920/f155cb98/attachment.htm> ___ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
