Re: [EVDL] EV Distance Record Smashed

2023-09-14 Thread Cor van de Water via EV
Assuming this team drove their car continuously (24h) for those 6 days
in the smooth concrete-floored hangar, then they did an average 11 MPH
which means that fact alone got them 25 times lower wind drag than at
55 MPH. They also likely used extremely narrow and high pressure
tires, again slashing rolling resistance to a tiny fraction - a
situation close to as if they would be rolling steel wheels on rails.
The reason for using GaN transistors in the controller is another
efficiency optimization, even though GaN is still finicky and not as
reliable as SiC and lastly the size, weight and extreme streamline
show that this is an academic achievement...
I do still like to occasionally hyper-mile my 10 year old Model S and
see the mi/kwh top 5 when staying at or slightly below 55MPH on a long
commute at a quiet road.
Cor.
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[EVDL] EV Distance Record Smashed

2023-09-14 Thread David Heacock via EV
Yes I know this is a very controlled situation and is not a vehicle that would 
be purchased by the public but taking a look at the numbers and doing some 
comparison with say the Aptera one might think the concept is promising.  
Efficiency is a key component, same general shape, drag coefficient of 0.159 
(Aptera computer modeling at 0.13), 103.2 miles / kWh (Aptera estimated at only 
10 miles/kWh), Hyundai Ioniq 6 and Lucid Air at 4.2 miles/kWh in production.  
You would think that OEMs could come up with something that gets better than 5 
miles/kWh and is reasonably priced? 
This EV smashed the world record for distance on a single charge


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This EV smashed the world record for distance on a single charge

At 103 miles/kWh, the car is 25 times more efficient than any EV on sale.
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