Comma AI / OpenPilot Autopilot Progress on R1!

[JM.]

Do you have any tips on getting that blue mimeograph fluid out of the carpeting in the gear tunnel? I mean, it smells great, but looks terrible.

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[portdirect]

honestly this is probably enough reason to stick with Rivian longitudinal for me. I assume this can eventually be fixed.

My understanding is that mobileye also has the same issue - in that even through the driver display makes it look like region is occurring when slowing down, in practice none is occurring. The only way to get regen currently is via manual control

 

[sparkles]

Another significant benefit of MDAS is less brake wear too. When OP is engaged, it uses the pads to slow and brake the R1, not regen braking. I confirmed this by watching the brake pedal move every time OP lets off the throttle.

Are we SURE that it's actually using the friction brakes? If you put any pressure at all on the brake pedal the brake lights on the R1 model on the driver display light up, even if you're not slowing down.

When Openpilot (or Rivian ACC) is gently slowing down and showing regen, the brake pedal moves slightly but the brake lights don't come on.

 

[Ecupip]

Are we SURE that it's actually using the friction brakes? If you put any pressure at all on the brake pedal the brake lights on the R1 model on the driver display light up, even if you're not slowing down.

When Openpilot (or Rivian ACC) is gently slowing down and showing regen, the brake pedal moves slightly but the brake lights don't come on.

My assumption is only based on what I’ve read on this forum. People say if the brake pedal goes down it’s using friction brakes. I tested by resting the top of my foot under the brake pedal. It moves down every time the vehicle slows with OP driving.

 

[godfodder0901]

My assumption is only based on what I’ve read on this forum. People say if the brake pedal goes down it’s using friction brakes. I tested by resting the top of my foot under the brake pedal. It moves down every time the vehicle slows with OP driving.

It does the exact same thing when using ACC and HWA, BTW.

 

[sparkles]

It does the exact same thing when using ACC and HWA, BTW.

Yeah it seems crazy that Rivian would program the ACC to forego regen for friction brakes when they believe in regen enough to not let you turn it off. I wonder if they could be using regen but also "preloading" the friction brakes for faster reaction for an emergency stop.

 

[godfodder0901]

Yeah it seems crazy that Rivian would program the ACC to forego regen for friction brakes when they believe in regen enough to not let you turn it off. I wonder if they could be using regen but also "preloading" the friction brakes for faster reaction for an emergency stop.

Sorry, my post wasn't very clear. The Rivian moves the brake pedal, and does apply some friction braking, but also applies regen for sure.

 

[Tatnai]

Sorry, my post wasn't very clear. The Rivian moves the brake pedal, and does apply some friction braking, but also applies regen for sure.

Are you sure about regen? Just so you know the graphics on the driver and main display saying it is regen are not to be trusted when driver aids are being used.

Rivian gen 1 acc uses a mobileye off the shelf system, it is not Rivian designed. I don't think we get any regen braking with it from all that I have read on this subject. For all braking you would really need zero mechanical brake, regen would do it all. And ultimately it really doesn't matter, even if there is some regen braking mixed in we know the impact on brake wear is still significant from multiple reports of people who used it significantly and had significant brake wear requiring pad and rotor replacement. Bottom line, you are likely getting lots of brake wear when using any of the current longitudinal control driving aids if you are regularly in stop and go scenarios. Strongly recommended MADS for this scenario.

 

[Tarkus]

Uh......Can you provide some context for those of us just reading through the discussion here. That is a LOT of devices in the cabin. What's the purpose?

I Drive Test the Accuracy of Wireless E911 Calls

 

[2kwik4u]

I Drive Test the Accuracy of Wireless E911 Calls

Interesting. I have so many questions on how that works, and what you're monitoring. Super interesting.

 

[RivianRocks25]

If this is stupid, please be gentle, I've read all of this thread and been on Discord (what a mess) but now that the Rivian MADS is merged into the 'master developer branch' of Sunny Pilot(from Comma Space, 5-24-2025), what exactly is the sunny branch that people are running?

I know there was a mads-rivian-prebuilt but don't think that is the latest after being merged into the dev branch.

I want stable but also MADS. I don't have the second harness.


On Github, I see
release-c3 (too old as from 2024)
staging-c3
dev-c3
.......and....
staging-c3-new
dev-c3-new
custom-branch

I see sunnypilot/staging-c3-new has the support for 2nd harness.

Looking for the one lease in beta and most stable. What are people like me running?

Thank you!

P.S. and oh, Comma open pilot kicks but! So much better than Tesla Auto Pilot in my usage case!

 

[gerrylum]

If this is stupid, please be gentle, I've read all of this thread and been on Discord (what a mess) but now that the Rivian MADS is merged into the 'master developer branch' of Sunny Pilot(from Comma Space, 5-24-2025), what exactly is the sunny branch that people are running?

I know there was a mads-rivian-prebuilt but don't think that is the latest after being merged into the dev branch.

I want stable but also MADS. I don't have the second harness.


On Github, I see
release-c3 (too old as from 2024)
staging-c3
dev-c3
.......and....
staging-c3-new
dev-c3-new
custom-branch

I see sunnypilot/staging-c3-new has the support for 2nd harness.

Looking for the one lease in beta and most stable. What are people like me running?

Thank you!

P.S. and oh, Comma open pilot kicks but! So much better than Tesla Auto Pilot in my usage case!

I would recommend the sunnypilot/staging-c3-new based on what you're looking for. It's the most stable and has the most features, and it's also prebuilt for faster boot times.

 

[RivianRocks25]

I would recommend the sunnypilot/staging-c3-new based on what you're looking for. It's the most stable and has the most features, and it's also prebuilt for faster boot times.

THANKS!

One more question, looks like in Sunny Pilot you can choose which driving model to use (CRT, TR15, DTRv4, v5, etc). Coming from Open pilot where there appears to be just THE ONE model, what model works with Rivian for 2 lane, 60 MPH cruising?

 

[CobraJerky]

Seems many people prefer the TR (Tomb Raider) models. They are okay to me. I prefer the WD40 model.

 

[gerrylum]

THANKS!

One more question, looks like in Sunny Pilot you can choose which driving model to use (CRT, TR15, DTRv4, v5, etc). Coming from Open pilot where there appears to be just THE ONE model, what model works with Rivian for 2 lane, 60 MPH cruising?

Yeah, models seems to be a very YMMV kind of thing. People have very different experiences with them so all I can say is try them out and see which one works best for you. I've been using Cookiemonster Tomb Raider for the last few weeks with very good results, and I'm looking forward to the new Space Lab models.

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