• 1 Post
  • 128 Comments
Joined 2 years ago
cake
Cake day: August 24th, 2023

help-circle




  • So the headline is pretty inaccurate.

    There will be a person in the passenger seat. They aren’t a safety driver, or driver at all. They’ve been operating with an actual safety driver for around a year now for employees only.

    We don’t really know what they’ll do, but I highly doubt it’s jump for the wheel if it’s about to do something. I think it’s going to be more of a, the car decides it can’t do anything and is just sitting there incorrectly and they won’t have to dispatch someone to fix it like Waymo does. This could be a legitimate saftey issue if the car is just stuck on the road.

    Once they’re happy it’s not getting in situations like that they’ll remove the person and dispatch people as needed.

    But we won’t know for a few more days when we get reports of what they’re doing while the first people test it.




  • I’ve had recent problems with FedEx like this as well. Like 3 of the past 4 deliveries it says it’s going to deliver maybe a day early, then just fucking sits in the depo in the city ALL DAY while still saying it’s going to be delivered today, until it’s the end of the day and it switches to tomorrow.





  • AEB braking was originally designed to not prevent a crash, but to slow the car when a unavoidable crash was detected.

    It’s since gotten better and can also prevent crashes now, but slowing the speed of the crash was the original important piece. It’s a lot easier to predict an unavoidable crash, than to detect a potential crash and stop in time.

    Insurance companies offer a discount for having any type of AEB as even just slowing will reduce damages and their cost out of pocket.

    Not all AEB systems are created equal though.

    Maybe disengaging AP if an unavoidable crash is detected triggers the AEB system? Like maybe for AEB to take over which should always be running, AP has to be off?





  • That’s not really true.

    He use lidar in SpaceX because he knows it’s the right tool for their specific job.

    His stance is it’s not that cameras are better, but that cameras have to be so good for a truly AV that putting effort into both means you’re not going to make your cameras good enough to do it and rely on lidar instead. That and cost.

    If the car can’t process and understand the world via cameras, it’s doomed to fail at a mass scale anyway.

    It might be a wrong stance, but it’s not that lidar is flawed.

    Tesla even uses lidar to ground truth their cameras

    Edit: just adding a late example - Waymo, Cruise, and probably everyone out there still use humans to tell the car what to do if it gets stuck. I even bet Tesla will if they ever launch a robotaxi as they need a way to somehow help the car if it gets stuck. When we see these failures with Waymo and Cruise, it’s less “is something there” and more “I don’t understand this situation”. The understanding comes from vision. Lidar just gives the something is there, but it isn’t solving their problem.



  • They get filtered out and the car will not act on it because there is so much noise from stationary objects all around you. The car essentially wouldn’t drive at all if it didn’t filter them out.

    At high speeds, the radar in all cars is used to detect moving objects and the change in velocity of those objects.

    Radar will not prevent running into this wall at 40mph.

    People can downvote me all they want, but that doesn’t change anything.

    Only vison and / or lidar would stop for that wall at 40mph.

    Edit: aside from clarity on the above this is the expected outcomes

    Radar in cars today: hit the wall

    Vision: probably all hit the wall but could be sufficiently programmed to not if they trained on it.

    Lidar: would not hit the wall.