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A comment on Tesla FSD Beta 8 tested for self-driving performance in snowy conditions. Parent comment

Re:Tesla FSD Beta 8 tested for self-driving performance in s... by johntb86 on Tuesday December 29, 2020 @03:19PM (#25574359)
Yeah, I'm curious after seeing the video how much the control could be corrected by a simple change to the car's software. Do Teslas have a sophisticated-enough physics model that you could reduce some constant for the coefficient of friction enough that it would be able to tell that it can't safely drive at 30mph or take those corners at 15mph?

Or is the software just hardcoded to assume that if it turns the steering wheel at a specific angle that the car will move a specific amount in that direction?

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Re:Tesla FSD Beta 8 tested for self-driving performance in s... by undo123 on Tuesday December 29, 2020 @04:59PM (#25575558)
What I’m seeing is a model that has no concept of slippage. I suspect what they’ll do is have the fleet collect data to predict that coefficient of friction.

Seems plausible that they could ask all the cars this winter to report instances of wheel slippage, accompanied by video rewound with the spot the wheel slipped on annotated. Could have a prediction for mu at each point on the road ahead of the car. All the pieces are there, it’s just math and NN work.

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