Unexpected braking
 
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Unexpected braking

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Sean Callahan
(@seancallahan)
Super Moderator Club Member
Joined: 6 months ago
Posts: 1003
Topic starter  

Had a bad experience when the autopilot was engaged. Going 75 MPH, no cars in front of us, and the car automatically slams on the brakes. It did this time and again even with cruise control enabled and me steering. Any reason why this happens and how to prevent it?

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TT97
 TT97
(@ttrinchi)
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Joined: 5 months ago
Posts: 480
 

It's "phantom braking."  Shocked you never experienced before.  It does happen mostly without cars in front - I think with a car in front, it doesn't get as confused  as it is just following the car.  I think it happens a lot due to shadow changes or items encroaching the road (low bridges, signs, etc.)

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SeaPhil
(@seaphil)
Member
Joined: 5 months ago
Posts: 419
 

That's freaking scary, Sean.  Good thing it didn't happen if you had chosen that moment to disengage your seatbelt to reach for something.

Yet another reason why 99.97% of the time I will have any driver assist functions turned off.

 

Will I get my Fisker One delivered before my VW needs its 100K service?? The race is on..
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Sean Callahan
(@seancallahan)
Super Moderator Club Member
Joined: 6 months ago
Posts: 1003
Topic starter  
Posted by: @ttrinchi

It's "phantom braking."  Shocked you never experienced before.  It does happen mostly without cars in front - I think with a car in front, it doesn't get as confused  as it is just following the car.  I think it happens a lot due to shadow changes or items encroaching the road (low bridges, signs, etc.)

Thank you so much. Never heard of this before. Yeah, I only use it on the freeway in San Diego and sometimes en route to Palm Springs. Maybe I only use it at night time if that makes any difference with shadows.

Fiskerati is my passion project. Follow us on Twitter. Subscribe to our YouTube channel. Download Fiskerati on the Apple App Store and Google Play.

🌊 Ocean One | Big Sur Blue | Black Abyss | 22” F5 AirGlider


   
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Sean Callahan
(@seancallahan)
Super Moderator Club Member
Joined: 6 months ago
Posts: 1003
Topic starter  

@seaphil Totally scary!

Fiskerati is my passion project. Follow us on Twitter. Subscribe to our YouTube channel. Download Fiskerati on the Apple App Store and Google Play.

🌊 Ocean One | Big Sur Blue | Black Abyss | 22” F5 AirGlider


   
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