I'd prefer Tesla focused on the other areas as well, and I have a P85D. Trip planner...
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New Launch Mode - firmware 2.9.40
- Thread starter PatP
- Start date
I'd prefer Tesla focused on the other areas as well, and I have a P85D. Trip planner...
sillydriver
Member
The problem I have with it is that it adds to 0 to 60 performance that doesn't need improving. And compared to ICE cars with slower throttle response and poorer traction control, the MS was already much easier to launch. What needs improving is 50 - 90 (pick your range) passing performance. I fear that the introduction of launch control as the software that brings Ludicrous mode to its ultimate potential means that the 50 - 90 time that ludicrous is already capable of is all we are going to get. Of course this is a first world problem and I hear that ludicrous 50 - 90 isn't bad.
jcaspar
Member
Awesome! The cars just keep getting better.
And owners of several of the cars on that list are afraid to hard launch them as they might brake something...
And owners of several of the cars on that list are afraid to hard launch them as they might brake something...
deonb
Active Member
There probably isn't an overlap between the engineers who are working on the drivetrain software and the engineers working on the NAV software.
Well, I would HOPE there isn't! Imagine pressing the accelerator and the software that supports you from that point on was written by the same guy who brought you the 4500 mile detour to navigate between two Superchargers that are 140 miles apart from each other...
Krugerrand
Meow
Excellent point! And since it's got to be the truth, then there are literally dozens upon dozens of possible reasons why performance continues to improve at such a fast rate, while other features improve at a much slower rate. I'd hope that people here could reasonably come up with some of those possibilities, none of which would have anything to do with an intent to upset current or future owners.
MikeBur
ManualPilot
Was posting on a different thread re. this at Firmware 7.0 - Page 175 - too many threads, not enough time ;-)
anywho, I completely align to your belief. A general user should get the both pedals pressed message, though those who have the knowledge and expectation to conciously trade off range for launch can do so. The video I posted yesterday, on 2.9.12, is completely traction limited and even at 22% SoC this gave a much more exciting experience than just kicking the accelerator.
lolachampcar
Well-Known Member
The car does apply power against drive line lash and the tire side wall but this is really not that much torque. The launch itself fully uses the tire side wall and there is absolutely nothing that would give me any hesitation WRT drive line issues.
Race cars and ICE with launch have difficulty when the rotational inertia builds then is abruptly stopped. Spinning the tires on corner exit then gaining traction has snapped many an input shaft or half shaft for me. Street car ICE launches where they spin up the engine then dump that inertia to the wheels is, likewise, hard on components. Tesla does not spin anything up and their traction control is so good that there simply is not enough time in the slip condition to build much drive line momentum. I do not see a problem (and, having said that, I will not likely promptly break my car :0 )
MarcG
Active Member
What I don't understand is how this new launch mode helps the 0 to 60 runs that motor trend calculates, since they remove the 1st foot rollout anyway?
Andyw2100
Well-Known Member
I thought of that too.
I'm just taking a stab at this. It's definitely not my area of expertise, so I easily could be mistaken. But I think it's because with launch mode, the car will be travelling faster when it reaches the 1-foot point than it would be without launch mode. So everything from that point on winds up being faster.
(I'm sure someone will correct the above soon, but this is my guess.)
I believe that Motor Trend uses the 1 ft rollout.
What is probably happening is that there is some variability in 0-60 times. Indeed, I said earlier that 0-60 time repeatability is probably not all that great.
The MT result reported in their article, 0-60 in , 2.6 seconds I believe the Tesla Stated time of 0-60 of 2.8 seconds and the magazine 0-60 time are measured the same way.....It's looking like the Magazine was getting better than usual, or better than the Tesla official 0-60 times on the particular day that the car was tested, and/or the official Tesla marketed result was more conservative result.
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Source? As far as I know they subtract 1 foot to simulate the timing lights, which is just a whopping 60 degrees of wheel movement, assuming no wheel slip. Launch mode would definitely impact this performance.
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It sounds like all meaning has been lost here since people still assume that the rollout was "cheating". Is the car faster or not? I'm going to assume yes. The measurement with rollout will be even faster still.
I'm just waiting for the uproar when all the 0-60 times of P cars get updated, included the P85D in norway.
Andyw2100
Well-Known Member
I don't understand how my comment implies anything about cheating.
The question Marc and I were wrestling with was if launch control just helped people start the car more effectively, would it matter if the first foot wasn't being counted anyway. My guess was that it would, because at the 1-foot point with launch control the car would be travelling faster than it would be at the 1-foot point without launch control. I was using my guess to support the fact that the car could, conceivably, be faster with launch control.
I have no idea how that caused you to say it sounds like all meaning has been lost, cheating, etc.
Perhaps I am mistaken in my understanding. I said I very well may be. But I am attempting to support the conclusion that the car is, in fact, faster with launch control.
The point is that launch control isn't relevant to measurement with or without rollout, a faster car will have a faster time. The question in itself is loaded since it implies something about rollout, the real question again is "is the car faster".
dirkhh
Middle-aged Member
So Tesla is directing some of it's very limited resources to a (in the bigger picture) pointless option to shave another tenth of a second off the 0-60 time.
Which in real world driving makes a difference exactly 0.000% of the time.
Yes, more than 0.000% of the owners and potential owners conceptually care about this but that doesn't change the fact that this is utterly irrelevant when actually operating the car.
40-60, 50-70, yes, those numbers matter a lot and they are mediocre compared to a ton of cars. But no one writes about them.
(and hard as it is for me, I will not allow myself to repeat all my whining about the firmware and the fact that there are a ton of really useful small things that could be done there that almost certainly would take fewer resources than the launch mode did... DANG, I did it again. And I was trying so hard)
Which in real world driving makes a difference exactly 0.000% of the time.
Yes, more than 0.000% of the owners and potential owners conceptually care about this but that doesn't change the fact that this is utterly irrelevant when actually operating the car.
40-60, 50-70, yes, those numbers matter a lot and they are mediocre compared to a ton of cars. But no one writes about them.
(and hard as it is for me, I will not allow myself to repeat all my whining about the firmware and the fact that there are a ton of really useful small things that could be done there that almost certainly would take fewer resources than the launch mode did... DANG, I did it again. And I was trying so hard)
People buy the P cars for a reason... It will certainly impress passengers more than a 50-70 time. As for real-world, well that's up to the driver.
The car has enough power to pass any other car like it was standing still, it's only a problem if you're racing some other semi-exotic. I'd recommend driving an any-car sometime, like a typical honda civic with an engine less than 2 liters, or a subaru legacy wagon, and you can wonder how they manage to even merge onto the highway.
sillydriver
Member
True, but if that's the argument for not fretting about 50 - 90, then it also applies against 0 - 60: we should just close several threads and drive like hypermiling grandparents.
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