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If this is the case then the temps on the gauges page are false. Even when I have charge below 80 or even 70% for that matter, never have I seen temps above 75 when my regen starts to be restricted. This seems like there is more here.
I tried another variation the other day. Went down a steep grade in conserve achieved the infamous limited regen to the max. I switched to all purpose and immediately had all regen again. Now the interesting part is where the regen happened was still with a major front bias as speeds were below 50. So if it was an inverter limit then I still should have been limited.
Well there is certainly no consensus on this subject. As @mtberman pointed out, he believes it to be the inverter overheating. I would rate the reliability of my conversation with Rivian rather low even though I did get transferred to the 2nd level of support.
At this point I tend to think it’s a design miscalculation otherwise they would have fixed it. The other thing it could be is they don’t want to push it so they have less failures within warranty.
I wanted to respond to your post because we, unfortunately, are having the EXACT same issues with our new 2023 "Max Pack" Performance R1T. We live in an area (Twain Harte, California) that I suspect has similar topography and climate (foothills of the Sierra), so it's all fairly hilly and moderately chilly as well. However, we're finding that our regeneration issues don't always seem to be tied to slope gradient or temperature and can go out even on very moderate slopes in moderate-to-warm weather. Like you, I have experience with other EV's (I own a 2023 Performance Model 3). Also like you, I have never had any of these same issues with my Tesla, and the overall regeneration performance on my Model 3 is heads and shoulders better/smoother than our new R1T. There is obviously a serious issue with the new Rivian's and regen. And frankly, I was getting pretty annoyed at many of the other posters who were trying to "talk you out of" that being true. They're all wrong, and I can't see any way that this issue won't become a full recall one and/or at least an OTA that will enable the ability (like my Tesla) to bleed in regular breaking when regen is impaired or lost completely. And finally, you're not crazy: The truck actually "speeds up" sometimes when the regen cuts out; and that's a SERIOUS safety problem!
Yes, we have definitely experienced the "unpredictable level" of regen as well, and it is surely disconcerting as it happens around our hilly driving area. It goes out, it goes less, it's too harsh/strong at low speeds, we feel acceleration. I don't know what's causing these problems, but it's definitely a safety hazard for people who live and drive in our kind of hilly areas.
Yes, I just saw that today "after" I posted: 2023.50? I think it's due around the 4th of January?
I’m not convinced it is that dangerous, though it is certainly unnerving, unless you are following too close. I cannot believe that any acceleration due to gravity alone would be large enough that you would not have time to react.
I disagree: I do think it's both "unnerving" and legitimately dangerous; moreover, I feel like our R1T actually does "accelerate" forward at times, as opposed to just feeling the difference of no regen in action. In any case, I surely hope the upcoming 2023.50 OTA update will make this whole post moot, or at least less relevant.
I don’t think it accelerates at all when your foot is off the go pedal. That doesn’t make sense.
Well, that's very fortunate for you; unfortunately, not the case for us.
