In my Volvo XC-60 with City Safety (Volvo Emergency Stopping system), If you even touch the brake slightly with your foot - the car DOES NOT engage city safety as it assumes you are in control. - This may be the same case with Tesla Self Stopping ??
Thanks. I completely agree. I initially hesitated to even post about my accident, but I felt kind of a moral duty. Hopefully, if there is a legitimate problem, it can be fixed, and I can post only about how much I love my P90D.
Sorry to hear about this. A few comments from my perspective:
1. Automatic Emergency Braking is intended to avoid a serious collision. It will not engage if you're only going 5-10 mph or so. Someone else accidentally let their car roll forward into the garage wall (admitted they were at fault) but afterward questioned why AEB didn't stop the car. It's not supposed to in this situation--only if there is a large speed differential between the car and an obstacle on a collision course.
2. I've never had anything like this happen to me--I've never seen an issue like this with TACC, and I use it on surface streets and highways about 200 miles a week. But you have to be aware of the limitations. I'd suggest that 2 car lengths is really too close. I leave my distance setting on 7, but I suggest at least 5.
3. For other new owners, I suggest using autopilot with hands on the wheel and foot covering the brake, paying very close attention, for the first several hundred miles of use. Watch what it does, where it can get confused, etc. Then as you start noticing that you can anticipate how it will behave, you can relax--just a little bit.
This is sage advice. It was definitely a bad idea to set my distance at 2 for highway driving. I was too cavalier, too starstruck and trusting of the technology. It simply never ocurred to me that the car would fail to stop. That was foolish.
AEB is not designed to avoid collisions, only reduce the impact. OP said it made noise before the crash, so it seems to have worked as designed. AEB works between 5 and 85mph and will only reduce your speed by a maximum of 25mph before it disengages (this is all in the manual) Due to the low amount of damage to the vehicle, it looks like it was quite likely down to 5mph at time of impact. AEB success!
As for "taking responsibility" I contend that the OP is not taking responsibility because they continue to state that there is nothing they could have done to avoid the collision. That is patently false, and is not taking full responsibility.
I'm fully with you on the AP thing and rather concentrate on the stuff that actually is part of their mission statement.
My car is AP-capable but no way in hell am I going to enable it.
I have no problem taking responsibility for my driving, but I want full control over my car.
But, I kept wondering how the car would have reacted if the car in front of me just slammed the brakes all of a sudden. I had no trust that the AP would've reacted better than I could (in my most alert state), and this is based on my observations of the AP behavior in 2 hr bumper-to-bumper traffic.
OP, Thank you for for posting about this problem.
I just got back from a quick 2-day round-trip drive to San Francisco (~700 miles), where I used the AP frequently. SF has the most horrible traffic. At speeds below 25 mph, I had the setting at 2-car distance (yes, Tesla calls it 2-car distance), and increased it at higher speeds, up to 7 at 65 mph or higher. Worked like a charm.
But, I kept wondering how the car would have reacted if the car in front of me just slammed the brakes all of a sudden. I had no trust that the AP would've reacted better than I could (in my most alert state), and this is based on my observations of the AP behavior in 2 hr bumper-to-bumper traffic. However, it would certainly minimize any fallout that could have resulted in a fender-bender if someone was distracted. Thus, the AP (7.0) can be viewed as a very good back-up system (NOT a self-driving feature).
Now, 2 hrs ago, while driving back home, I got a message about the upgrade to v 7.1. Should I do it?
I am glad you have not had an accident using TACC at the 2 setting at highway/freeway speeds (the specific scenario I described as "unsafe"). My experience with TACC set at 2 is that the distance it maintains is far less than what is required when reacting and then braking in response to the car in front doing maximum emergency braking at highway/freeway speeds, even on a dry road.That is entirely your opinion. I run TACC\AP at 2 car lengths all the time unless the pavement is wet then I change it to 4 and to date, I have not had an issue with those distances.
(Cross-post of a reply of mine at teslamotors.com)If it sounds implausible, it probably is. This means TACC failed. Not AP. And that is very unlikely to happen.