SoCal Rob
Well-Known Member
It sounds more like an instance of a bad part:
I don’t recall seeing many (any?) other cases of a failure like this on here.
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MountainBikeDude
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I've been going back and forth with conserve and all purpose more often since this post, to see how I feel about the idea in general, and I suppose experience Dual Motor life.
Hard driving in conserve is different than in AP or any other mode, clearly. The rear doesn't feel as tight or connected to the road, and you can tell the front wheels are dragging the vehicle around corners. I'm dramatizing this, but if you push it, you notice.
Performance gains driving in conserve on a Gen 1 Quad are noticeable, there's really no question there. Typically driving in conserve nets a 10%+/- efficiency boost so it is worthwhile, especially if you can save yourself some time on road trips either avoiding a charger, or reducing the amount of time spent at a charger in general.
I've always been of the mind that changing in and out of conserve mode should be done either at a stop, or while traveling at a consistent low power output speed, like a highway. This last week however, I played more with changing in and out as I would get up to speed stop at a light, change out, then once going back up to cruising, go back to conserve. No issues. Really this is akin to how the dual motor operates.
There was this one time though last week, that I was at a light in conserve, F-250 pulls alongside, I'm like...
I give it the beans, but quickly remember I'm in conserve, so I quickly hit AP and sure enough, jolts as the rear wheels kick in, then all 4 wheels propel me to victory. It wasn't smooth, didn't feel great, and I'm sure I winced when it engaged, but the dog clutch, assuming it's software mitigated to some extent, clearly took the brunt of that engagement.
The summary of the creative writing essay above, is going back and forth etc, you can tell the Gen 1 Quad was never designed with this repetitive engage/disengage strategy. I'm sure it would be relatively easy for Rivian to program in a set of parameters that control the conditions (power output/regen) to allow for engagement etc. but it would likely result in a more lengthy lag on re-engagement like putting down the pedal to pass someone while in conserve, the system would either need to delay you getting that power while it safely connects the rear motors, and then gives you the requested power, or you're stuck in conserve wobbling around trying to change lanes and pass, and then only once you come off the accelerator for a moment, it then re-engages the rear, but is too late to give you the benefits.
Either way, nice idea in theory, but I doubt Rivian will ever implement it, and really, conserve mode should be treated as a neutered driving mode that gives you gains, but you need to drive gingerly to reduce tire wear, and keep the vehicle driving profile predictable.
Hard driving in conserve is different than in AP or any other mode, clearly. The rear doesn't feel as tight or connected to the road, and you can tell the front wheels are dragging the vehicle around corners. I'm dramatizing this, but if you push it, you notice.
Performance gains driving in conserve on a Gen 1 Quad are noticeable, there's really no question there. Typically driving in conserve nets a 10%+/- efficiency boost so it is worthwhile, especially if you can save yourself some time on road trips either avoiding a charger, or reducing the amount of time spent at a charger in general.
I've always been of the mind that changing in and out of conserve mode should be done either at a stop, or while traveling at a consistent low power output speed, like a highway. This last week however, I played more with changing in and out as I would get up to speed stop at a light, change out, then once going back up to cruising, go back to conserve. No issues. Really this is akin to how the dual motor operates.
There was this one time though last week, that I was at a light in conserve, F-250 pulls alongside, I'm like...
I give it the beans, but quickly remember I'm in conserve, so I quickly hit AP and sure enough, jolts as the rear wheels kick in, then all 4 wheels propel me to victory. It wasn't smooth, didn't feel great, and I'm sure I winced when it engaged, but the dog clutch, assuming it's software mitigated to some extent, clearly took the brunt of that engagement.
The summary of the creative writing essay above, is going back and forth etc, you can tell the Gen 1 Quad was never designed with this repetitive engage/disengage strategy. I'm sure it would be relatively easy for Rivian to program in a set of parameters that control the conditions (power output/regen) to allow for engagement etc. but it would likely result in a more lengthy lag on re-engagement like putting down the pedal to pass someone while in conserve, the system would either need to delay you getting that power while it safely connects the rear motors, and then gives you the requested power, or you're stuck in conserve wobbling around trying to change lanes and pass, and then only once you come off the accelerator for a moment, it then re-engages the rear, but is too late to give you the benefits.
Either way, nice idea in theory, but I doubt Rivian will ever implement it, and really, conserve mode should be treated as a neutered driving mode that gives you gains, but you need to drive gingerly to reduce tire wear, and keep the vehicle driving profile predictable.
DKM_R1S
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