this post was submitted on 04 Jul 2023
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52
Breaking: NHTSA Petition Claims Tesla Sudden Unintended Acceleration Is Real (but Fixable) (www.autoevolution.com)
submitted 1 year ago by dragontamer to c/technology
23 comments fedilink hide all child comments
 

cross-posted from: https://lemmy.world/post/1030687

EDIT: This PDF contains very detailed electrical information for the EEs who wanna go through the complaint: https://www.autoevolution.com/pdf/news_attachements/breaking-nhtsa-petition-shows-tesla-s-sudden-unintended-acceleration-is-real-and-curable-217525.pdf

Last year at /r/RealTesla, a Chinese video of a car rocketing at full speed for 1+ minutes before crashing / killing a pedestrian made the rounds. We all recognized it as one of the weirder cases of "Sudden Unintended Acceleration", and I think that particular video really changed some minds.

https://www.republicworld.com/world-news/china/tesla-to-assist-police-probe-fatal-model-y-acceleration-incident-in-china-articleshow.html

While a lot of SUA events are from driver-error, it began a search into why Teslas seemed to be getting more SUA above-and-beyond the industry normal. This investigation (now filed under NHTSA) suggests that the ADC could be miscalibrated during a load-dump (or other electrical surge-like) scenario.

If the ADC associated with the accelerator pedal is off, then the Tesla will have the pedal at the wrong level of acceleration until the next calibration event, which is not going to happen until over a minute later.

This is extremely similar to that Chinese runaway Tesla, and perfectly seems to explain it. I'm glad that someone seems to have gotten to the bottom of this.

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[–] [email protected] 1 points 1 year ago

Yeah, I'm much more focused on actually solving the SUA issue, especially since the resale value on this car is fucked lol it's not going anywhere anytime soon.

It definitely is all so very strange.