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Tesla SDU HillHold functionality question
Posted: Wed Mar 19, 2025 11:07 am
by tensa
Hi,
I have a Tesla SDU running the v3 board with firmware version 5.35.R
Is there a way I can implement Hill Hold?
If yes, what are the recommended parameters for a Tesla SDU?
Re: Tesla SDU HillHold functionality question
Posted: Wed Mar 19, 2025 1:43 pm
by johu
The functionality is available (idlemode=HillHold) but I don't know of anyone who tested with async motors. It works very well with sync motors.
You need the brake pedal signal connected for it to work
Re: Tesla SDU HillHold functionality question
Posted: Thu Apr 10, 2025 5:15 pm
by caymanS
I have tried Hill Mode in SDU with no success. I set the idlemode to HillHold, and do have brake signal connected, but it did not work for me. I tried other modes, e.g. Always and NoBrake, and they work fine, but when I set it to HillHold nothing happens. Any hint?
By the way, when you say brake signal, do you mean just a brake input or more advance brake potentiometers?
Re: Tesla SDU HillHold functionality question
Posted: Fri Jun 06, 2025 1:48 pm
by langoo
Did you get this sorted, we have the same behaviour in our SDU-powered Porsche?