Regenerative braking - revisited

[CommonSense]

I have never once had the problem of bouncing on the pedal and my truck lives in sport stiff. You need to set your heel on the ground and pivot Instead of riding the pedal.
....
If I had to give a percentage I would say its more like 95-5 for one pedal.

I wear a size 13 shoe, I don't think I could ride the pedal if I wanted to do so. My heel is always planted. Maybe you just aren't encountering roads as rough as I have to deal with. Or maybe you are just a super driver who can bounce off the their seat, but still keep their foot still on the pedal.

I personally don't have a problem with the one pedal outside of extreme bumps / steel plates in Stiff, and experimenting further I can get thru those bumps in Normal suspension without the problem.

95/5 - okay sure. I actually counted the replies each way in this thread to get to my number, but if you want to just make up a number, we can use that.

But I've been thinking about this a lot, I think one-pedal is inevitable and your 95/5 will be right:
Some of us liked three pedals (stick) better than two pedals, because it gives us more control over the vehicle.
Some of us like two pedals (regen on the brake), better than one pedal, because it gives us more control over the vehicle.

But in the long-run simplistic tends to win (at least in the US market)...

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[jimmyb2]

So it appears that people who are in love with OPD, despite only being around 20-30% of people

I don’t know what the actual breakdown would be of those liking OPD vs those not liking it, but I suspect your numbers are significantly off.

If you are going to put numbers to this it would earn greater acceptance if you actually researched to get real numbers.

You called it “fact that most EVs use blended braking”. I don’t know if that is true or false. If it is true it would be interesting to know the real reason mfgs. have done that. Maybe they did it simply because they figured that most people’s experience is with ICE vehicles, and they would have difficulty adapting to a different mode of driving.

Prrsonally, I really enjoy OPD, but I certainly would not object to having a setting to turn regen off. I would likely never use it unless, thru experimentation, I found some benefit of using it.

However, I would not want “blended braking” unless it could be turned off. Why use brakes if not necessary in my view. With my standard transmission ICE vehicles I always downshifted using brakes only to complete the stop.

 

[CommonSense]

22,000mi and it's definitely the biggest complaint. ... It's fun for the driver in a challenge sort of way, but part of the ownership experience is complaints of carsickness. There is no good reason to not be able to turn off OPD, I couldn't care less about lost efficiency or range due to not having it.....

So turns out you're not alone.

recent Consumer Reports video on tiktok titled - "Least Favorite Cars we tested in 2023"

Host 1 - ... So For me , the Rivian R1S... very low overall score... oddly, owner satisfaction for this car is very high .... it's just undriveable for me, for comfort
Host 2 - "it's sort of nauseating almost"
Host 1 - "it's sort of nauseating as a driver..."

and it goes on from there. Who knows how long the hosts actually spent driving the R1S and learning how to OPD - but it's not a great look.
Here's the video


I'll use this as an opportunity for two other updates to this thread:

a) Not using Sport Mode definitely solved the 'bucking' problem I had on very rough roads. Now if only my township would finish the water main replacements...it's been over a year.

b) Cold weather - so I've now discovered that cold battery also limits regen, similar to a full battery. So that's another downside of OPD IMO: you have to pay attention to the battery status to have predictable braking behavior, whereas two pedal braking it does not matter.

 

[RedRiv]

What have others found the sweet spot is for regen when descending a long sustained grade in terms of maximizing regen? Put it in high with more throttle and presumably more regen, or standard and presumably less throttle?

 

[Riv303]

What have others found the sweet spot is for regen when descending a long sustained grade in terms of maximizing regen? Put it in high with more throttle and presumably more regen, or standard and presumably less throttle?

Generally I’ve found:

Long sustained, mostly straight = Standard or Snow (unlocks Low regen setting for easy coasting w long regen periods and relaxing drive)

Long descent w switchbacks (i.e. would require braking in an ICE) = High

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