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>The flip side of this is false positives: you don’t want a car slamming on the brakes because of a plastic shopping bag or other soft piece of trash lying in t
by tw04 5y ago
>The flip side of this is false positives: you don’t want a car slamming on the brakes because of a plastic shopping bag or other soft piece of trash lying in the road. This is a hard problem, regardless of technology employed.
Is this really a problem with current vehicles? I've had ford, gm, and dodge/ram vehicles over the last ~8 years with forward collision sensors and automatic braking and never once had any of them slam on the brakes due to a plastic shopping bag or other piece of soft trash lying in the road. I honestly haven't even had them give warning from one of those items being in the road (or any item that wasn't a car to be honest).
- ajross 5y agoRadar isn't going to signal on a shopping bag, but I bet you it would for a mylar baloon. Existing radar-based collision sensors really aren't that accurate anyway. They are quite late with detection in most cases, precisely because they have to be tuned not to brake on false positives. They want a good strong signal, at which point the best they can do is reduce the speed of an inevitable collision.
- ipsum2 5y agoThis is because those cars are using radar (a plastic bag probably would show up as a small blip), but Tesla is removing radar from their cars to rely solely on cameras.