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You have fallen victim to the trap that this video so perfectly laid out for you. Tesla used the mmWave radar that has been in cars forever since it's a good wa
by stefan_ 5y ago
You have fallen victim to the trap that this video so perfectly laid out for you. Tesla used the mmWave radar that has been in cars forever since it's a good way to do emergency braking and things like adaptive cruise control, particularly when you are a new company and you need these capabilities on your luxury sedan from day one. Now that they are much further along in their FSD efforts, they realize this mmWave radar isn't very helpful anymore. Cool, but nobody else was using it to begin with. LIDAR is totally and utterly different sensor technology.
- sumnuyungi 5y agoDidn't Andrej show examples of emergency braking and how poorly radar performed v. vision?
- ra7 5y agoHe showed how poorly their outdated radar performed. The rest of the industry uses newer, vastly superior radars.
- sumnuyungi 5y agoWhat radar did Tesla use? What does the rest of the industry use?
- ra7 5y agoThey are using Continental 2D radars from 2014. The rest of the SDC industry uses what is called 4D high resolution imaging radars. That's why Teslas have poor performance like phantom braking under bridges.
- jiofih 5y agoWhat models on the market use 4D imaging radars? All info I can find shows products releases in the past 1-2 years for future vehicles.
- ra7 5y agohttps://arberobotics.com/product/ https://arberobotics.com/product/ is one. It was rumored Tesla themselves wanted to use Arbe radars, but evidently they have ditched the plan and gone radar less. I think AutoX from China is planning to use Arbe as well. Waymo has its own custom developed 4D imaging radar and I imagine most of the other SDC players have their own versions.
- jiofih 5y agoSounds like “none”.
- ra7 5y agoNone what? I just gave you an example of Waymo using 4D imaging radar [1]. Aurora also uses imaging radar [2], Mobileye as well [3]. AutoX is going to start using Arbe radars. All of them are leading players in SDC industry. [1] https://blog.waymo.com/2020/03/introducing-5th-generation-waymo-driver.html https://blog.waymo.com/2020/03/introducing-5th-generation-wa... [2] https://aurora.tech/technology/driver https://aurora.tech/technology/driver [3] https://www.mobileye.com/blog/radar-lidar-next-generation-active-sensors/ https://www.mobileye.com/blog/radar-lidar-next-generation-ac...
- jiofih 5y agoYou said “everyone else” besides Tesla uses 4D radar, and “that's why Teslas have poor performance like phantom braking”. But there are zero production vehicles on the road using this tech right now.
- ra7 5y agoI said “The rest of the SDC industry uses 4D radars” in a follow up comment, which clarifies I don’t mean car manufacturers. Given this post is about radar usage in self driving and how Tesla/Karpathy touts their capabilities, I compare them to other SDC players, not other car manufacturers who are not in the game. And their SDC competitors are running away because they have the newer 4D radars.