Tesla Model 3

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Re: Tesla Model 3

Postby Ianhill » Sun Aug 06, 2017 11:19 am

markz wrote:Saw a Tesla Model X I think it was, Gull-Wing rear doors. Very sleak!
Is that a new model or has it been out for awhile?


One rolled past me in Wales uk all I could hear was the tyres I also had two hydrogen mirai prius look alikes pass me so there incentive to some to use these cars but it's still less than 0.1% using them at the moment hybrids and nisdan leafs have been used by the local taxi firms for city use.
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Re: Tesla Model 3

Postby Hillhater » Mon Aug 07, 2017 7:21 pm

more model 3 spec details becoming available from Teslas EPA certification docs..
* 80.5 kWhr, 350 v, 230Ah, battery pack ( long range pack)
* 258 Hp , 3 ph, Permanent Magnet drive motor. ( different to S and X Induction motors)
* regen braking on the front wheels as well as the rear... :shock: ???
One of the Test reports suggest a range driven of 495 miles, and a recharge energy of 89kWh ..?
source..
https://electrek.co/2017/08/07/tesla-mo ... -revealed/
Last edited by Hillhater on Mon Aug 07, 2017 7:29 pm, edited 1 time in total. View post history.
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Re: Tesla Model 3

Postby speedmd » Mon Aug 07, 2017 8:01 pm

Interesting they setup regen on non drive wheels. Not surprised they went to permanent magnets in the lower cost cars motor. Will be interesting to see how exactly they place them.
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Re: Tesla Model 3

Postby Hillhater » Tue Aug 08, 2017 7:02 pm

Apparently, during a financial conference on Monday ( Junk bond issue) , Musk stated the M3 packs were infact 50 kWh , and 75 kWh,...but didnt clarify if this was their "working" capacity or their "gross" capacity .
I cannot find any direct report of that conference. :?
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Re: Tesla Model 3

Postby Ianhill » Tue Aug 08, 2017 7:28 pm

Hillhater wrote:Apparently, during a financial conference on Monday ( Junk bond issue) , Musk stated the M3 packs were infact 50 kWh , and 75 kWh,...but didnt clarify if this was their "working" capacity or their "gross" capacity .
I cannot find any direct report of that conference. :?


That would be using 95% state of charge that's not going to be to good for a cells health in the long run the 21700 will need to be robust to put up with that type of cycling, I would try not to use the full range and keep it around the sweet spot unless I planned a long distance run.
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Re: Tesla Model 3

Postby jonescg » Wed Aug 09, 2017 10:29 pm

Use of permanent magnet motors is very intriguing. It could be a typo on the part of the EPA, but it could be a big shift. Technically it's not a Tesla motor then (more like a Westinghouse? ;) )

Permanent magnet materials are sketchy, and Tesla is trying to avoid unethical / unsustainable procurement. Maybe it is set up for regen braking on all wheels? You can achieve that with induction rotors, but PM would be more efficient.
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Re: Tesla Model 3

Postby Hillhater » Wed Aug 09, 2017 10:45 pm

Discussion in other threads suggest the PM motor is a logical move to get better efficiency ( range), but it has me beat... as i was of the understanding induction motors were the future for EVs ? :? :?
At least we seem to have a better understanding of the new packs and cells.. 4416 cells, 21700 format, 5.0 Ahr
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