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Comma 3 Supports Ioniq 5 - Comma 3 or HDA2?

18K views 31 replies 18 participants last post by  cayabyabl  
#1 ·
While I wait patiently for my I5 (w HDA2) to arrive next month, I saw Comma 3 now supports Ioniq 5's w/ HDA2... Interesting 🤔

If you aren't familiar, Comma 3 is an aftermarket level 2+ driver assistant device running Openpilot software that many say is even better than Tesla's Autopilot

Here is what Comma's site says about support for I5:

"Openpilot upgrades your Hyundai Ioniq 5 with automated lane centering at all speeds, and adaptive cruise control that automatically resumes from a stop."

For someone who has yet to try HDA2, what do you guys think? Anyone getting Comma 3 or is HDA2 good enough as a driver assistant on those long stretches?
 
#2 ·
HDA2 is already pretty good and it will let you drive handsfree for 1-3 minutes at a time before it prompts you to touch the steering wheel. HDA2 already has automated lane centering, adaptive cruise and resume from stop. I would have a hard time paying $2800 U$ (comma 3, I5 harness, harness box, panda box) so it can be handsfree for longer periods of time.
 
#3 ·
I've been using OpenPilot for 5+ years on a number of different vehicles, and it's hard to overstate how great it is. Many videos on YouTube show it drive for hundreds of miles at a time flawlessly, which is my experience of having done numerous cross country roadtrips where the data came back showing 99% driven by OpenPilot. HDA2 is not comparable. This was a critical part of why I bought an Ioniq 5. If you have an HKG E-GMP car this is a no brainer.

Do know that as for today, for HKG vehicles specifically (and many but not all others, depends on make of vehicle), OpenPilot is latitudinal only (relies on cars longitudinal, which thankfully is quite good). By years end this should hopefully change, at which point the HDA2 E-GMP cars will likely be the best OP cars on the road, capable of navigating more similarly to Tesla FSD rather than Autopilot - e.g. input directions, it takes you there. I think it's more likely to be a few months into next year by the time we see that, but it's a little too far out to say for certain.

Also the e-gmp cars have CAN-FD, which is a blessing and a curse. The blessing is that we're likely to be the first vehicles capable of Tesla FSD like routing, the curse is that in order to process CAN-FD data you'll need a red panda and additional harness box (two harness boxes total, one harness, one red panda, a couple usb cables). The full price is closer to $3k rather than $2k if you're buying new and not upgrading from a previous setup.
 
#30 ·
I have the I5 AWD Limited. I paid $1K for the Comma 3X and another hundred dollars for the Harness for the I5. I have been using it for a week and have tried the Openpilot software, Sunnypilot with multiple target branches, Frogpilot with multiple target branches and have returned to Sunnypilot using Dev 3 target branch. I have also took the steps to implement Navigation via Mapbox and have the map showing and I am able to load a route but the car will not automatically follow the route and stop at lights and stopsigns. The system does recognize Red/Green lights, and stopsigns but takes no action. This system is 100 times better than HDA II. I can go on the highway, side roads, country roads and let it steer itself and I do not have to touch the wheel at any time. I have the same capabilities as HDA 2 but on steroids. This was worth the money and I bought an extra harness for my Hyundai Hybrid Santa Fe and will move between the vehicles when needed.
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#5 ·
Use it with my I5 daily. As for videos there's 5+ years worth of YouTube videos of OpenPilot working for many thousands of people across hundreds of makes of cars, I wouldn't bother to make my own. I'd say this one is highly representative of the experience you can expect, but our Ioniq 5's can take even tighter turns (ultimately 90 degree turns):


OpenPilot also can be enabled on all roads, it's not just a highway thing. Will steer beautifully through intersections as well, but again, only latitudinal for our vehicles for now. If you get really into it you can try other forks with even more features too, like soon sunnypilot will likely work with our cars so that we can decouple latitutidinal/longitudinal - i.e. have car always steer even if we're manually using the peddles.

Bottom line is if you do a lot of cruising, road tripping, etc. it's worth it's weight in gold. If you're into more city and spirited shorter distance driving, it's value is going to be a lot less until we get longitudinal.
 
#12 ·
I've had a Comma 3 in my 22 Palisade for about a year. We used it to drive from the Oregon coast to Virginia and back. Comma did probably 95% of the driving.

I put a deposit down for an Ioniq 5 Limited yesterday and have some questions, Myles, if you don't mind answering. Is it correct that you need the vehicle specific harness, the Red Panda, and am I reading correctly that 2 harness boxes are needed? I'm trading my Palisade in so I'll have the power cable and stuff. I tried asking on discord and they kept referring me to pinned messages which I couldn't figure out.
 
#16 ·
If they deny a claim they’re supposed to be required to prove the aftermarket device caused it. I always just remove mine and tuck the cables behind the mirror of my Palisade when it goes in for service. But to my knowledge the device doesn’t leave any lasting clues once it’s removed.
 
#20 ·
In US as well when auto insurance is purchased, they do ask those questions. They don’t verify them, but I would bet that if there is a collision and insurance company determines car was being driven through mods, they will deny payments. Not sure if such cases have gone to courts yet.
 
#24 ·
This thread has been dormant for five months, so it's time for an update for anyone interested. Comma has dropped the C3 (Comma 3), and replaced it with the new C3X. Not only is the C3X less expensive than the C3, it has built-in support for CAN-FD which is used by the Ioniq 5. This means no more Red Panda (the red box shown in post #23 above) and associated cables, saving even more money. Thus the total cost to equip an I5 in the U.S. is $1250 for the C3X, plus $200 for the car harness, plus state taxes. (Be sure to correctly specify whether or not you have HDA-II in the ordering process, as the harnesses are different.)

I received mine recently and installed it yesterday. I haven't driven on a divided highway with it yet, but I did drive on some roads around town and it did great. Hands-free driving on roads with and without center lines, even unpaved roads. For the I5 the current version of the OpenPilot software only handles steering and relies on the car's built-in ACC to maintain separation from the lead car. This may change in future versions.
 
#28 ·
I was just assuming this wouldn't work with my SE, but on Comma's website it has the unit with a harness for I5's without HDA2. Would that mean that I would be able to add lane changes to my SE, or would it just not have that functionality but add it's own adaptive cruise and lane centering?
 
#29 ·
The comma3x does have lane changing abilities, i had them working on my subaru when i had it so you should have lane change functionality if you install it on your SE.

I will be buying the harness, soon since i just picked up my car and wanted to get used to the HDA2. I do have a limited model that does have all the bells and whistles though so we'll see whats available and whats not available.