How FSD behaves w/ Max Speed -- explained by Tesla software engineer

[MeadowShade]

Carissa

Crissa

The same information that says how many replies I have written also says how many times people have found my replies useful, and when I started writing on the forum.

I would hope if you're 70 years old you'd be able to do the simple math to realize that over several years, counting all the conversation segments would make a massive number.

I'm twenty years younger than you. I have always interacted via text as my primary and best method for communication. I've been on the wider internet for thirty years come last month - Forever September.

Before that I interacted on BBSes and read all the local newspapers from end to end. Every day.

That I can have this in my hand, my pocket, is something I love.

Do I spend more time here than I should? Well... Probably. But I'm just in here to grab a drink, take a rest, and then I'm going back to building a painting booth in my 'port.

What does this have to do with autonomy? Not much. But I've been following it since I was a teen. I wrote for a magazine and attended conferences to speak to developers and technologists.

That's why I have so many answers and citations. And why I'm interested in easing others into our technologically driven future.

-Crissa

PS: This is totally off topic for this thread, hence the question of trolling. https://en.wikipedia.org/wiki/Troll_(slang)

Maybe stop and read what I said. It was a complement. How do you answer so accurately and so frequently and maybe without any 1st hand experience?

You must be really smart!!

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[Crissa]

Crissa


Maybe stop and read what I said. It was a complement. How do you answer so accurately and so frequently and maybe without any 1st hand experience?

You must be really smart!!

I thumbsed up your last comment.

I talk to lots of people. I accept when my observations are out of date. I try to cite documents when I can. And I have fairly good Google-fu.

And yes, I conventionally score really high on aptitude tests for memory.

-Crissa

 

[Sjohnson20]

Why did the 5.5.2 update remove the voice notes? If doesn't pop up anymore like it did before.

Mine still does

 

[mongo]

Why did the 5.5.2 update remove the voice notes? If doesn't pop up anymore like it did before.

I find that sometimes it asks and sometimes it doesn't.

 

[REM]

Crissa


Maybe stop and read what I said. It was a complement. How do you answer so accurately and so frequently and maybe without any 1st hand experience?

You must be really smart!!

She blocked me lmao

 

[MeadowShade]

I thumbsed up your last comment.

I talk to lots of people. I accept when my observations are out of date. I try to cite documents when I can. And I have fairly good Google-fu.

And yes, I conventionally score really high on aptitude tests for memory.

-Crissa

I got it.
Please forgive me. I do not always agree with you as my 100,000 Tesla miles see some things differently. I was an early beta tester and do believe that in a couple or three MORE years, FSD will be ready for all but the most stoooopid. I am not sure that can be taken out of the equation if there is still a wheel and any other controls other than a big red button that says ALL STOP on the dash. Even that would be a problem for many.

I hate all the hate that Tesla gets. The hugely biased reporting but slowly many are getting won over. My issue is this. Many that are throwing Tesla under the bus on FSD have NEVER sat in an FSD seat. My own son in law bought a Mach E. He told me dozens of times how much better the Ford system is than Tesla .... until he drove it... I have NOT heard those comments any more. Even TFL on YouTube has begun to roll over as Andre drove a CT with FSD on a fire road that has never been mapped. He was shocked.

Keep it up ... !

 

[Crissa]

I got it.
Please forgive me. I do not always agree with you as my 100,000 Tesla miles see some things differently. I was an early beta tester and do believe that in a couple or three MORE years, FSD will be ready for all but the most stoooopid. I am not sure that can be taken out of the equation if there is still a wheel and any other controls other than a big red button that says ALL STOP on the dash. Even that would be a problem for many.

I hate all the hate that Tesla gets. The hugely biased reporting but slowly many are getting won over. My issue is this. Many that are throwing Tesla under the bus on FSD have NEVER sat in an FSD seat. My own son in law bought a Mach E. He told me dozens of times how much better the Ford system is than Tesla .... until he drove it... I have NOT heard those comments any more. Even TFL on YouTube has begun to roll over as Andre drove a CT with FSD on a fire road that has never been mapped. He was shocked.

Keep it up ... !

I don't see anything here we disagree on!

Even if they perfect FSD, and I'm worried that conflicting demands by users and roads may make that impossible to do, regulatory systems will be super-slow to adopt them.

Cars that drive themselves? Sure. Cars that drive themselves and accept the level of risk people in many states have accepted? Err... Maybe not.

That's the hard part. The people accepting them.

-Crissa

 

[MeadowShade]

I don't see anything here we disagree on!

Even if they perfect FSD, and I'm worried that conflicting demands by users and roads may make that impossible to do, regulatory systems will be super-slow to adopt them.

Cars that drive themselves? Sure. Cars that drive themselves and accept the level of risk people in many states have accepted? Err... Maybe not.

That's the hard part. The people accepting them.

-Crissa

before even my time …

Many avoided elevators without a human operator.

 

[Squidjigger]

I live next to the state line where most county roads and many secondary highways use google map defaults or the last known speed limit. A highway I drive sometimes says 65mph one way and 55mph coming back. Not sure what that's about.

I've been told that Google Map speed limit update requests are not being responded to at the county and town level in my area. They probably end up in some official's spam folder.

It would be nice to be able to input correct speed limits and have them saved. FSD trying to nudge up to 55mph on a winding gravel road is not good.

Running 12.5.5.2

 

[Dmayo305]

I live next to the state line where most county roads and many secondary highways use google map defaults or the last known speed limit. A highway I drive sometimes says 65mph one way and 55mph coming back. Not sure what that's about.

I've been told that Google Map speed limit update requests are not being responded to at the county and town level in my area. They probably end up in some official's spam folder.

It would be nice to be able to input correct speed limits and have them saved. FSD trying to nudge up to 55mph on a winding gravel road is not good.

Running 12.5.5.2

Similarly, I wish the navigation would learn from my behaviors. There's a reason I always go to the road that the map thinks it's closed, it's because I have an RFID tag that opens the gate!

 

[The Duke]

Senior staff software engineer at Tesla AI @philduan
explains how FSD handles max speed.

That pretty much explains the problem. FSD does not keep the car in front close enough so people pass on the right all the time.

Please solve this AFTER you quit hugging the left line and occasionally going over it. Early FSD stayed centered, some complained, but that is the correct way to drive. Maybe take an advanced driving course?

 

[Woodrick]

Exactly.

How can the AI justify going 12 or more OVER the posted limit and that far below when the speed is 60 or higher. Not getting the argument that it drives slower to be safer if it drive 12+ over at low speeds.

Sounds to me like it is just choosing the speed it can process ...

Because back during the 70's energy crisis, speed limits stopped representing an average speed and became something political.
Speed limits and driving speeds have little to do with each other these days.

At my old house, I had two two-lane roads that effectively paralleled each other. They were pretty similar in construction and geography. But one was a 55 mph road and the other a 45 mph road. Wierd!

But then they widened and 4-laned the 45 mph road. Divided highway, center exit turn lanes, curves straightened and road flattened. It's definitely a greater than 55 mph road now.

But it is still a 45 mph road.

Speed limits have no correlation to average road speeds any more.

 

[Woodrick]

No one thinks it is perfect, and a lot of people are astute enough to know it will never be. Also anyone who uses the system today knows the solutions (pressing accelerator or just not using FSD). Do you think these are helpful insights you are giving?

I feel this discussion is more about the design intent Tesla wants to achieve. This Tesla employee states they intend to not accept speed settings from the users. I feel that is a mistake today and in the future because the system cannot and is not taking all things into consideration.

You have no idea what they are taking into consideration and what they plan on taking into consideration.

For a Full SELF Driving car, of course you aren't going to accept input from the passengers.

 

[Woodrick]

Wait, so you think a vehicle made in Texas should follow your other state rules and inconvenience those of us in Texas? I kind of think the car's AI could recognize this and adjust accordingly but until it has this ability, actual speed limits and actual driving speeds have to be the inputs for limits in the software.

Not really. But then when states pass "abnormal laws" you do sometimes have to expect some issues from it.


But in this case, Tesla created the limit from calculations of the response time of the system. They did not feel comfortable processing the data in a timely manner going faster than that.

It's probable that they will increase the speed, just like they've lowered and increased it a few times in the past.

 

[MeadowShade]

Well, having put some more miles on my FSD CT, I am convinced of the following.

Reading the signs and pulling from a speed limit database is a tug of war. On almost every drive, it gets the speed limit wrong on certain roads.

If I let it totally choose the speed, it is all over the place ... too fast and too slow.

If it is set to go by my setting, it does catch the lower speeds and slows quickly but speeding back up is a crap shoot.

It rolls up way to fast on cars stopped at a red light and uses the brake.

It wait too late to get into the correct lane for an upcoming turn.

It does signal now BEFORE it starts slowing for a turn ...

Just not ready for primetime here in VA. I am sure that roads that have more data allow it to work better.

I do NOT see any real difference between our Y and CT both with HW4.

FS

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