3 ms·
> The time is up to the manufacturer, isn't it? The time depends on how quickly an event unfolds in traffic. You can't guarantee 10s notice for an event that i
by close04 1y ago
> The time is up to the manufacturer, isn't it?
The time depends on how quickly an event unfolds in traffic. You can't guarantee 10s notice for an event that is imminent in 2s and the system might not be able to handle or can't detect.
The car could become temporarily "blind" for some reason with just 4-5s to brake before a collision. It's enough for a human driver even considering reaction time. But it's impossible to guarantee a minimum time without the ability to predict every issue that will happen on the road.
- Dylan16807 1y agoIf there isn't a guaranteed minimum time, then it's not level 3, it's advanced level 2. Level 3 needs to be able to handle very rapid events by itself. If it becomes "blind" because of an unexpected total system failure, that's an exception to the guarantee just like your transmission suddenly exploding is an exception. It had better be extremely rare. If it happens regularly then it needs a recall.
- close04 1y ago> If there isn't a guaranteed minimum time When dealing with unpredictable real life events there are no guarantees, unless we're considering the many carveouts to that definition from a legal perspective. A blind car (fluke weather, blown fuse, SW glitch, trolley problem) can no longer guarantee anything. Giving the driver 10s, or assuming the worst and braking hard could equally cause a crash. > your transmission suddenly exploding is an exception As long as the brakes or steering work a driver could still avoid a crash. The driver having a stroke is closer to a blind car.
- Dylan16807 1y ago> When dealing with unpredictable real life events there are no guarantees The guarantee here is that the human isn't obligated to intervene for a moment. If you call that guarantee impossible, then what about level 4 cars? They guarantee that the human isn't obligated to intervene ever. Are level 4 cars impossible? Is this a wording issue? What would you say level 4 cars promise/provide? Level 3 cars need to promise/provide the same thing for a limited time. And that time has to be long enough to do a proper transfer of attention.
- close04 1y ago> The guarantee here is that the human isn't obligated to intervene for a moment. Ah, understood. So the guarantee is that the driver is not legally responsible for anything that happens in those 10s. I always took that as a guarantee of safety rather than from legal consequences.
- Dylan16807 1y agoIt's more about safety than legality. But with the understanding that nothing is perfect. The guarantee is that you will be very safe and you can go ahead and look away from the road and pay attention to other things. But at most this is as good as a level 4 or 5 car, not an impossibly perfect car.