I don't know if it does or doesn't, but perhaps all the rebar in the concrete is like being in a Faraday cage.Yeah, if a compass didn't work down there, we'd have bigger problems than no nav.
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I don't know if it does or doesn't, but perhaps all the rebar in the concrete is like being in a Faraday cage.Yeah, if a compass didn't work down there, we'd have bigger problems than no nav.
I park in a 5-level deep underground parking garage every day. Within seconds after I drive in, Slacker shuts down, so I know it loses cellular almost immediately. And there's no way GPS works down there.
However, the car NAV always knows which direction the vehicle is facing, you can see it rotating as I go down the ramps.
That has got to be inertial NAV (gyro's) - I am not aware of any other technology that can do that. Compass would also not work down there.
Compasses still work in Faraday cages. (GPS and cellular signals, not so much)I don't know if it does or doesn't, but perhaps all the rebar in the concrete is like being in a Faraday cage.
If you get out of the car while still in D, it will automatically shift to P.
Of course I wouldn't be so absent minded to try that ..!
If you get out of the car while still in D, it will automatically shift to P.!
Compass would also not work down there.
I was trying to open the charge port on the wrong side the other day. Really frustrated that it wouldn't work.
I was trying to open the charge port on the wrong side the other day. Really frustrated that it wouldn't work.
I don't think the Model S has a compass anyway. For example, if you back into a parking space, the arrow on the map representing the car rotates in the direction of movement rather than "backing up" on the map, which suggests it is using the differential of GPS locations to determine the arrow's direction. I'm not sure how it's correctly registering your location below ground though, without getting a GPS signal. Maybe there's some sort of compass or gyro that it falls back to only when GPS fails?
Unless I'm missing something, I kinda think it does have a compass. I back into my garage at home and if I look at the map in the app on my phone, it always shows my car pointing the right direction rather than the direction it was last traveling. Then again, it might just be flipping the direction 180 since it would have known I was last in reverse.
Yesterday i I tried to drive from the passenger seat. Also frustrating...
I think it'd be helpful here to define what you mean by "pointing the right direction". Not arguing with you, just that we might have a different expectation. I would say that for the direction to be correct (or "right") would mean that the arrow depicts the orientation of the car, and always faces the same direction the car is. So if I back into my garage, I would expect the arrow to point in the direction of the garage door, not the back of the garage. In my experience, the Model S shows the arrow in the opposite direction, as though I had pulled forward into the garage. This could also be considered "right" however, as it represents the relative direction of travel. It is this behavior that leads me to believe there is not a compass, because if it knew the direction the car was facing, it could keep the arrow in sync with that direction. It could also just be that they chose to depict the direction of movement though, regardless of the orientation of the car.
Also, don't get me wrong, I don't really mind the way it works now. I'm not suggesting they add a compass just so that the arrow can be shown to "back up" when in reverse. I think it's just an inherent limitation of the method they (and other nav systems) have chosen to depict direction.
As an aside I thought it was interesting that the only controls that changed orientation were the buttons for the glovebox/hazards. Everything else is just moved over with the layout intact-- even the VIN is still on the right side. The ergonomics of having all the display menus on the far side of the screen are a nice penalty for our former overlords.