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Old 10-26-2018, 02:49 PM   #21 (permalink)
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Originally Posted by jamesqf View Post
Only if someone reverse-engineers the system, and figures out how to get ride of all the self-driving stuff, and replace the touch screen with physical controls.

Though what I'd prefer (given enough time & money) is to take the battery & motors from a wrecked Tesla, and put them in either in something like a Miata, or a vehicle of my own design. I'm just not a 4-door sedan kind of guy :-)
It is *MUCH* easier up here (Canada) to get a conversion certified and insured than a full-custom vehicle.

I'm presently struggling with the requirement to vent the battery case outside the vehicle. If the batteries short out, or overheat, or whatever ... and vent electrolyte ... it has to go outside the vehicle. So if the battery is inside the cabin, it needs to be sealed and vented. This is a bit of a struggle with a self-designed pack. It might be easier to re-task a leaf pack instead. I'm trying to get mock-ups of recycled vehicle packs to fit .. somehow ..

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Old 10-27-2018, 11:07 AM   #22 (permalink)
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They dont vent much electrolyte unless it is combusting. The flames are what needs to be vented preferably somewhere you are not.

I suggest Volt packs, or spark packs. Some have luck with Kia packs.
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Old 10-27-2018, 04:31 PM   #23 (permalink)
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They dont vent much electrolyte
That's good!

And we're talking government rules and regulations here .. nothing practical.

The initial idea may have started out to keep occupants safe, but after it goes through a few bureaucrats, the initial issue is lost. A bunch of extra rules are added by people justifying their own jobs ... and perhaps it is a bit safer in the end.
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Old 10-28-2018, 10:47 AM   #24 (permalink)
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Remember he designed his first packs just after the laptop battery fire fiasco/recall, and was using "laptop" batteries. I think there were also a couple of volt battery issues then so fire venting got real important until battery technology mellowed out.
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Old 10-28-2018, 10:46 PM   #25 (permalink)
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Quote:
Originally Posted by thingstodo View Post
It is *MUCH* easier up here (Canada) to get a conversion certified and insured than a full-custom vehicle.

I'm presently struggling with the requirement to vent the battery case outside the vehicle. If the batteries short out, or overheat, or whatever ... and vent electrolyte ... it has to go outside the vehicle. So if the battery is inside the cabin, it needs to be sealed and vented. This is a bit of a struggle with a self-designed pack. It might be easier to re-task a leaf pack instead. I'm trying to get mock-ups of recycled vehicle packs to fit .. somehow ..
That requirement probably dates to the days when conversions used flooded lead-acid batteries. Those batteries vent hydrogen while charging so venting flammable gas to the outside makes sense.
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Old 04-12-2019, 08:38 AM   #26 (permalink)
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Are they still working on this?
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Old 04-12-2019, 06:22 PM   #27 (permalink)
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Are they still working on this?
Yes. It was shown to the public about a month ago and scheduled to go on sale 4th quarter 2020. It is a hatchback based on the Model 3


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