Uphill Auto Brake



When in drive and car is stopped on an uphill (as at a light or stop sign), do not allow car to roll back – even if brake not pushed sufficiently to activate “Hill Hold”.


Without such an automatic hill hold it is possible for  car to roll back and overrun pedestrians or hit another vehicle, as occurs with all vehicles today.


(lightly edited by moderator)

Category: Tags: entered 16-Mar-2018


We already have hill hold.  One should always depress the brake to command the car to come to a complete stop. This should be included when the car is fully autonomous, but I can't imagine a safe situation where the driver will not command the car to come to a stop in any situation without depressing the brake.
I would like Hill-Hold to work both in uphill (car pointed up) and downhill.
The car should not be able to go backwards when "D" is selected and should not be able to go forwards when "R" is selected.
This all works great on my 2018 MS, without any special effort, just make sure to come to a complete stop and the car won’t move whether stopped pointing uphill or downhill, until you touch the accelerator.

I believe this is conditional on turning off “Creep Mode”, which I recommend everyone learn to do, give up on that ICE behavior, use strong regen, and convert to one-pedal driving, all better options for an EV.
Simpler: if the car's velocity is less than ~10 km/h and no pedals are pressed, bring the car to a stop. I think maybe the Model S/X may already do this, but the Model 3's regen braking can only slow it down to a crawl but not a complete stop. The car should use conventional brakes to bring the car to a stop from a slow speed when no pedals are pressed.
This definitely does not work at the moment on 2013 S85. “Hill mode” should not need any level of automation. Car in drive - don’t allow it to travel backwards. Car in reverse - do not allow it to travel forward.