Bjorn Nyland Tests Tesla Model S Automatic Braking Feature – Video

SEP 29 2015 BY MARK KANE 27

Tesla Model S Automatic Emergency Braking test 1

Tesla Model S Automatic Emergency Braking test 1

Tesla Model S Automatic Emergency Braking test 1 - result

Tesla Model S Automatic Emergency Braking test 1 – result

The Tesla Model S’ automatic emergency braking is an important safety feature, although it doesn’t seems that it works in all instances, at least according to tests conducted by Bjørn Nyland and Jørgen Winther-Larsen .

Despite “autopilot” features, the Tesla is helpless against the styrofoam wall on the road. And because these tests only use styrofoam, we don’t have any proof that the computer will save you against other obstacles, but then again perhaps the Styrofoam (and other like materials) itself is the issue.

“Jørgen Winther-Larsen and I test what happens if we try to drive a Model S with autopilot features towards a storyfoam wall. It’s supposed to brake automatically when detecting an obstacle.”

Maybe the obstacle was to small? Well, test two with a larger wall also resulted in a fail:

Tesla Model S Automatic Emergency Braking test 2

Tesla Model S Automatic Emergency Braking test 2

Tesla Model S Automatic Emergency Braking test 2 - result

Tesla Model S Automatic Emergency Braking test 2 – result

Test number 3 – chickened

Tesla Model S Automatic Emergency Braking test 3 - chickened

Tesla Model S Automatic Emergency Braking test 3 – chickened

Test number 4 – with car

If there is a car ahead, automatic emergency braking works. It appears nore tests and real world reports are needed to make sure that it’s a reliable feature.

Tesla Model S Automatic Emergency Braking test 4 - now works

Tesla Model S Automatic Emergency Braking test 4 – now works

Editor’s Note:  Original YouTube video (below) from which the story/picture for this article was formed has now been removed by Bjørn for unknown reasons

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27 Comments on "Bjorn Nyland Tests Tesla Model S Automatic Braking Feature – Video"

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Removed by the user.. Aha.. Huge tesla fan here but what does that mean?

Not sure, but if I had to guess, I’d say the video was removed. By the user.

Did Tesla threaten to renege on giving Bjorn the free Model X he won if he refused to take down the video?

/s

Could be that the person who posted it found out that his test might have been scientifically invalid, due to the materials used? I wouldn’t automatically ASSume anything.

I’m guessing the system software is looking for “car like” features instead of a white blank wall?

Hopefully that’s not it since it would be desirable for it to prevent collisions with white blank walls made of materials other than Styrofoam (concrete, for instance), and not just cars.

I’m not too worried, in another article here a few days ago it was reported it prevented a collision with a kangaroo, which is not very car like.

Whoops, I should have read the entire thread before posting. See Marc Talloen’s post further down.

I wouldn’t exactly call that a “takedown”. More like anecdotal evidence.

More likely the radar and ultrasonic waves simply passed through the thin foam material and did not provide a strong return signal indicating an obstacle.

So no biggie unless there’s a chain link fence erected across the road…

It could be Lidar, pulsed light. maybe it doesn’t like styrofoam.

The vehicle can detect a range of materials and densities using the ultrasound sensors.

I’m guessing Styrofoam is probably not currently on a lookup table to flag as “dangerous” to the vehicle and occupants. So automatic braking does not occur.

Ok, so you’ll test the brick wall, right?

Paint the styro with metallic paint.

+1

The Tesla uses front-facing radar to detect obstacles, right? Perhaps a thin layer of styrofoam doesn’t properly reflect the car’s radar?

That’s just a guess, and I’d be very interested in a follow-up to this report.

The question then becomes: what else doesn’t properly reflect the Tesla’s radar?

This is proof that you cannot depend only on radar or sound, that visible wavelengths have to be incorporated too.

Bad Bjorn, bad.

No Tesla for you!

I can avoid any obstacle by paying attention 🙂

looks like Bjorn isnt getting a Model X lol

They should start with half the layer Styrofoam they used and spray paint the front of the Styrofoam with paint that has metallic particles and on the other side spread aluminum foil across it then layer another sheet of Styrofoam with the other side sprayed painted with the same paint.

That should return an adequate signal.

Cut a few 2/2″ square holes in the front.

Bjorn, I must say that my impression is the Automated braking system works pretty well!
During my 9000 km trip it worked 3 times for me and it saved a kangaroo that decided to cross the road wrongly timed. http://onestepoffthegrid.com.au/how-a-tesla-travelled-9000kms-through-queensland-without-super-charger-network/
A couple of days ago it reacted on 2 birds flying over the road approximately 15 m in front of the car.

I was fortunate enough to see the video before it was removed. Until I hear otherwise from Bjorn in one of his videos, I’m assuming Tesla asked him to remove it. I’m wondering if the styrofoam wall would have been moving if it would of made a difference? Also I’m hoping Bjorn is working on a version 2 of the video with aluminum foil or metallic paint.

Maybe VW wrote the automatic braking software; it knows when it’s being tested!

Then wouldn’t the automatic braking software work only when it’s being tested, like the emissions controls on diesel VWs?

For the record, Tesla never asked me to take down the video. I took it down because I was not happy with the result. Now I consider re-uploading it with some extra content. Because even though we didn’t make it work, it has already been proven many times that the system actually works.

Tesla would not ask someone to take down a video unless it was beta software being leaked.