2daMoon
Mostly Harmless
You stop using fiction brakes and call a tow truck.
I kinda like the idea of calling Regen braking "Fiction" braking,
even though that (probably) isn't what you meant to write.
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You stop using fiction brakes and call a tow truck.
Assuming the friction brakes are capable of doing so, yes. Conventional semis with engine braking can have runaways when the friction brakes aren't up to the task.You stop using friction brakes and call a tow truck.
Correct, thanks for stating it so succinctly. I think the original poster (I've lost track, too busy doing Mod stuff to go back and find them) thought that driving the motor against the motion, rather than just sucking out energy, might be better. It is possible to do this, but a really bad idea. The truck has energy (kinetic and gravity potential) that needs to be dissipated. If you take more energy out of the battery to drive against the downhill motion, you are simply adding more energy. All that energy has to go somewhere, and that is into the motor as heat. It wouldn't take long to do serious damage when we're talking hundreds of kW.How does drawing from the battery help? Negative torque (opposing motion) is regen.
I don't have the data but HV contactors have failed and without a connection to the pack I think the inverter would cease to function.Have we any knowledge - or supposition - of any single or dual motor Tesla vehicle that has had regen disabled because of such failure? If so, what has been the failure rate, either per size of fleet, or per total fleet-miles/km?
It's the biggest Tesla event in a while, and it's the weekend.While I'm a big proponent of a catch all thread, it is amazing how the perpetual investors thread seems to have become the Semi thread this weekend...
Not disputing that, however there already is and was a Tesla Semi thread.It's the biggest Tesla event in a while, and it's the weekend.
But why post in the graveyard when you can post it here so everyone can see it?
But people don't use the other threads unless forced to. Many if not most of us use this thread as a catch all... not that there's anything wrong with that IMO. Just pointing it out.OTOH, if more people posted in there it wouldn't be a graveyard
I was really confident they would take this approach. Offer FSD at substantial discount, up to the full loss $7500 for December delivery. The only reason it wouldn't be a solid win is because they are adamant about protecting the value of FSD - buyers would have in mind they could get it later at say a 'Black Friday' discount.Link not loading for me.
But I actually think them doing a FSD discount to say $7000 from $12000 or 1 year free FSD subscription for any deliveries in December would be an insanely smart move. They wouldn't compromise current margins and I think that would drive a ton of demand for Dec. I'm actually not sure why they're not doing that sort of incentive instead of the temporary price cut
I assume you have much more interesting topics we should be discussing this weekend, please share.Not disputing that, however there already is and was a Tesla Semi thread.
But why post in the graveyard when you can post it here so everyone can see it?
I assume you have much more interesting topics we should be discussing this weekend, please share.
Well...Georgia is looking pretty good right now. I've got them a lock for the natiobal championship.I assume you have much more interesting topics we should be discussing this weekend, please share.
So....nothing, got it. Maybe don't clutter the thread with complaints when there is nothing more important to discuss. Semi is the latest and greatest product from the company in which we are all invested, nothing could be more on topic.how much fightin' did you have in mind?
"Toothless USA eliminated from World Cup as Netherlands expose talent gap"
Toothless USA eliminated from World Cup as Netherlands expose talent gap
The USMNT's lack of a reliable striker came back to bite them as the Netherlands executed a tactical plan exposing the Americans' weaknesses.www.espn.com
(this is only on my mind because my son is over in Amsterdam this past week and was advised to "keep your head down" today by friends}
regulators and insurance firms will be all over this safety issue. Class 8 trucks brakes are a huge safety issue and constantly inspected by any diligent trucking firm. The entire system of air brakes is actually a very interesting mechanical solution. I will be curious to see how Tesla has implemented their solution. He brought up a very good point.I think petit_bateau's point is that reversing the motors to actively brake, instead of regen, would generate significantly more heat (and much more quickly) than anticipated.
So I think we should look at it this way:
How much power (in KW) does it take to go uphill at a constant speed? That should be the same power (in the form of heat) that you'd need to dissipate going downhill. As long as the motors + cooling system can convert that to heat and dissipate it out into the air, then there's plenty of "braking" capacity to go downhill, even without regen.
Edit: Relying on the friction brakes to "travel" downhill is a no-no. That's riding the brakes and is a sure way to deplete your available braking reserves.
Interesting. Thought I saw video of Macron at NASA HQ (DC) on Thursday. Guess he gets around, too.Not terribly relevant, but he met Macron in New Orleans, not DC.
While I'm a big proponent of a catch all thread, it is amazing how the perpetual investors thread seems to have become the Semi thread this weekend...
If you become a supporting member you get a lot more time for edits and deletions, up to a day for the the top group (I think). Just sayin'... worth it IMOGot it, so I missed that the cars price already had EAP in it.... makes sense.
Thanks and I haven't seen any MX deals yet...
Well then that was a dumb post on my part... Will try to delete it !!
Edit: The Tmc gods and their delete timer expired.
Great now my stupid post is stuck on the thread.