I typically get phantom braking, once a week, or so. These are not associated with a dark shadow from an overpass (half the time I drive at dark, so shadows don't come into play)
Today the car started to slow/brake, The closest vehicle was ~1/2 mile behind me, so I let the car figure it out. Cruise control is set to speed limit +10%. The road has a 65 MPH limit, so the car was driving at 72. The braking event ended when it hit 65 (coincidentally, the speed limit) and then accelerated back to 72.
My theory ... maybe the glitch is related to the software in the "speed limit +XX%" system (for want of a better name). Is it possible that the system momentarily turned off, so the car thought it was supposed to be driving at actual speed limit (not plus XX%), thus it slowed/braked? Today, it didn't feel like the car was braking (with friction brakes), but rather the feeling you get with normal driving when you take foot off the accelerator at highway speed. Maybe it's really not phantom braking (implying brakes were applied to slow the car), but lack of acceleration (regen slowing). I didn't notice if the "maximum speed" display on screen changed, I don't think it did, but couldn't say for sure.
I have two things I'd like to ask of the community.
First, IF you are on an empty highway, with plenty of room behind you, and your car starts to slow/brake, ... paying attention to the traffic behind you...don't override... let the car continue braking until it's no longer safe to do so. Does the car eventually recover from the braking? If so, at what speed? Maybe we will find out what we believe is random braking, is the computer erroneously setting cruise control to the speed limit. I'm only interested in random slowing/braking, we all know in some instances it can be tricked (shadows. etc.).
Second, there's no shortage of phantom braking threads, most get overrun with hundreds of extraneous subtopic discussions, filled with complaints and anger directed towards Tesla. I get it. No one wants to spend $60-80 thousand on a car that doesn't work properly. My request is that we try to keep the thread on point, which is...if the car eventually figures out the braking and starts accelerating again, at what speed did the car recover?
This might be a useful piece of information for engineering.
Thanks!
Today the car started to slow/brake, The closest vehicle was ~1/2 mile behind me, so I let the car figure it out. Cruise control is set to speed limit +10%. The road has a 65 MPH limit, so the car was driving at 72. The braking event ended when it hit 65 (coincidentally, the speed limit) and then accelerated back to 72.
My theory ... maybe the glitch is related to the software in the "speed limit +XX%" system (for want of a better name). Is it possible that the system momentarily turned off, so the car thought it was supposed to be driving at actual speed limit (not plus XX%), thus it slowed/braked? Today, it didn't feel like the car was braking (with friction brakes), but rather the feeling you get with normal driving when you take foot off the accelerator at highway speed. Maybe it's really not phantom braking (implying brakes were applied to slow the car), but lack of acceleration (regen slowing). I didn't notice if the "maximum speed" display on screen changed, I don't think it did, but couldn't say for sure.
I have two things I'd like to ask of the community.
First, IF you are on an empty highway, with plenty of room behind you, and your car starts to slow/brake, ... paying attention to the traffic behind you...don't override... let the car continue braking until it's no longer safe to do so. Does the car eventually recover from the braking? If so, at what speed? Maybe we will find out what we believe is random braking, is the computer erroneously setting cruise control to the speed limit. I'm only interested in random slowing/braking, we all know in some instances it can be tricked (shadows. etc.).
Second, there's no shortage of phantom braking threads, most get overrun with hundreds of extraneous subtopic discussions, filled with complaints and anger directed towards Tesla. I get it. No one wants to spend $60-80 thousand on a car that doesn't work properly. My request is that we try to keep the thread on point, which is...if the car eventually figures out the braking and starts accelerating again, at what speed did the car recover?
This might be a useful piece of information for engineering.
Thanks!
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