Standard vs High Regen

[rushidesai]

Hi,

I have been driving a Tesla Model S since 2016 and I just took delivery of my R1S on Friday. The car was set to "high-regen" when I took delivery and being an EV driver I thought "of course I want the highest regen ever". Compared to my Model S, the regen felt way stronger. My Model S doesn't have one-pedal drive (older induction drive units didn't) so I'm used to friction braking to come to a stop. But the R1S pedal felt quite twitchy and it took a lot of conscious effort to ease off the pedal.

After driving about 30-40 miles, I tried standard regen and felt that my driving was smoother and it took less effort to drive (i.e. I don't have to ease micrometers off the pedal to slow it down gradually). But I feel terrible not using the highest regen. I am an EV driver. I want to be most efficient.

So now the question is, does this actually matter from a Physics point of view. Whether I'm using high-regen or standard-regen, if I don't use the brake to slow down and come to a stop, am I equally efficient? Is the difference only going to be how much I let go the pedal while trying to maintain the same deceleration?

Thanks!

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[Mark_AZR1T]

I'm 100% high regen.....after a year, I can get this thing to stop within a foot of my target every time......Regen Game....

 

[C12farmer]

I was told by a Rivian rep that high Regen doesn’t increase the maximum amount of Regen. It just makes the accelerator petal more sensitive during regen.

I think this behavior agrees with what you observe.
One way to test this is to do full off pedal regen stopping distance test using both standard and high.

 

[Cavalryscout18]

I think as long as the regen does 99% of your breaking, it doesn’t matter if it is on high or standard. Just need a little more lead time for the standard. I test drove the R1S last month and the standard regen was in line with my Model 3 regen and 99.9% of my breaking on that is regen. I did not try high regen on the R1S but if it causes too much jerkiness, I don’t mind keeping it in standard as long as most of my breaking comes from regen. But I think you’ll get used to the higher regen. Seems like you just need practice with the pedal since your MS is not one pedal.

 

[LL75]

does standard or high regen has any benefits on increasing range?

 

[Texasag05]

I did standard for about two weeks to get used to any kind of regen. Came from bronco and f-250. After two weeks I switched to high and got used to it very quickly. But at first it was too jerky for me. Now the only problem is when I hop in my 250 going to the ranch I forget I have to use the brake!

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