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| Tesla teardown finds electronics 6 years ahead of Toyota and VW |
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| Marco:
I don't think there's a problem with assist. Drifting lanes? Sound an alarm and only then try to nudge the car back in lane. Trying to switch lanes with rear or side traffic incoming? Sound an alarm and try to nudge the car back in lane. Etcetera, etcetera. If you make the alarm loud and annoying enough, people will not try to make the assist a standard feature of their driving style. PS. thinkfat, doppler radar doesn't see stopped cars ... you're accepting the increased chance of killing or maiming yourself, your kids AND others by watching away. It's a dangerous gamble you are making for convenience. |
| Jeroen3:
I recommend driving on Madeira. Straight flat road is unknown there. I'd like to know how Tesla handles those roads. |
| jeremy:
--- Quote from: Marco on February 20, 2020, 11:48:31 am ---doppler radar doesn't see stopped cars --- End quote --- Wouldn’t you get a Doppler shift on the carrier as your own car would be moving? I mean yeah, if your car is stopped and the other car is stopped there will be nothing, but I don’t think that’s a dangerous situation... |
| thinkfat:
--- Quote from: Marco on February 20, 2020, 11:48:31 am ---I don't think there's a problem with assist. Drifting lanes? Sound an alarm and only then try to nudge the car back in lane. Trying to switch lanes with rear or side traffic incoming? Sound an alarm and try to nudge the car back in lane. Etcetera, etcetera. If you make the alarm loud and annoying enough, people will not try to make the assist a standard feature of their driving style. PS. thinkfat, doppler radar doesn't see stopped cars ... you're accepting the increased chance of killing or maiming yourself, your kids AND others by watching away. It's a dangerous gamble you are making for convenience. --- End quote --- Doppler radar will "see" stopped cars because your own car is a moving reference system. The automatic cruise control will possibly choose to ignore it because it's an implausible signal, but the collision avoidance system will not. You'll get a collision warning that will definitely draw your attention back to the street. Also, it's not just Doppler, AFAIK there is a ranging radar as well. I remember seeing a teardown on TheSignalPath which involved a vehicle radar from an undisclosed manufacturer. Also, it's not about voluntarily watching away. Distractions happen, they're unavoidable. We're all just humans, our attention span and ability to focus on boring things is very limited. |
| coppice:
--- Quote from: jeremy on February 20, 2020, 11:59:01 am --- --- Quote from: Marco on February 20, 2020, 11:48:31 am ---doppler radar doesn't see stopped cars --- End quote --- Wouldn’t you get a Doppler shift on the carrier as your own car would be moving? I mean yeah, if your car is stopped and the other car is stopped there will be nothing, but I don’t think that’s a dangerous situation... --- End quote --- A drawback with the wide beam radars on current cars is they can't accurately determine the resolved velocity of detected objects. With a doppler sensing radar its easy to correct for the motion of the vehicle down the boresight of the radar. However, when the beam is wide the edges of the beam need a very different correction from the boresight. |
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