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"While the system can handle a range of driving conditions, it's not designed to stop for parked cars or other stationary objects when traveling at highway spee

"While the system can handle a range of driving conditions, it's not designed to stop for parked cars or other stationary objects when traveling at highway speeds." IMHO this means that the system hasn't currently got a field of view that goes far enough to be able to detect stationary objects and avoid them/stop in time when travelling at high enough speeds.

matt_the_bass 8y ago
I don’t think it is a stopping distance issue. I think it is a data fusion issue. At least this is the case with other brand’s technologies. The emergency stopping is not related to the adaptive cruise control. In cruise control mode, objects with large relative speed differences are ignored.
- ElBarto 8y ago
  The "when travelling at highway speeds" in the excerpt I quoted does sound like this is a "field of view" issue considering that Autopilot may be turned on from 17mph. As the car's speed increases, it must be able to look further ahead and to make sense of what it sees in order to avoid slow/stationary objects, and it seems to me that they have a limitation there. It seems crazy to supply ignore "objects with large relative speed differences". These are the most dangerous ones! They say Autopilot can detect a potential front collision within 160m and has an emergency braking feature, but the statement above seems to contradict that.
  - matt_the_bass 8y ago
    I hear what you’re saying. I think part of the problem is none of the manufacturers are clear in what is their algorithm other than “its good and it works!” This is inline with the calls by many for a NTSB standard for testing such features. On a separate note, what’s the deal with min speed? My VW Atlas has a min speed of 34 mph.
    - ElBarto 8y ago
      I wouldn't be surprised if the min speed what a simple way to say that their systems do not support congested urban environment, starting, and navigating. Basically, without a min speed people would try to use the car as a fully autonomous one: Get on the car, turn Autopilot on, wait for the car to drive itself.
      - matt_the_bass 8y ago
        That’s a good point. I hadn’t thought of that. Just to clarify, the adaptive cruise control in the Atlas works as low speed but lane keeping does not. I actually use ax all the time even in slow residential areas. It prevents me from inadvertently speeding.

matt_the_bass 8y ago

I don’t think it is a stopping distance issue. I think it is a data fusion issue. At least this is the case with other brand’s technologies. The emergency stopping is not related to the adaptive cruise control. In cruise control mode, objects with large relative speed differences are ignored.

ElBarto 8y ago
The "when travelling at highway speeds" in the excerpt I quoted does sound like this is a "field of view" issue considering that Autopilot may be turned on from 17mph. As the car's speed increases, it must be able to look further ahead and to make sense of what it sees in order to avoid slow/stationary objects, and it seems to me that they have a limitation there. It seems crazy to supply ignore "objects with large relative speed differences". These are the most dangerous ones! They say Autopilot can detect a potential front collision within 160m and has an emergency braking feature, but the statement above seems to contradict that.
- matt_the_bass 8y ago
  I hear what you’re saying. I think part of the problem is none of the manufacturers are clear in what is their algorithm other than “its good and it works!” This is inline with the calls by many for a NTSB standard for testing such features. On a separate note, what’s the deal with min speed? My VW Atlas has a min speed of 34 mph.
  - ElBarto 8y ago
    I wouldn't be surprised if the min speed what a simple way to say that their systems do not support congested urban environment, starting, and navigating. Basically, without a min speed people would try to use the car as a fully autonomous one: Get on the car, turn Autopilot on, wait for the car to drive itself.
    - matt_the_bass 8y ago
      That’s a good point. I hadn’t thought of that. Just to clarify, the adaptive cruise control in the Atlas works as low speed but lane keeping does not. I actually use ax all the time even in slow residential areas. It prevents me from inadvertently speeding.