Comment by fafac

The amount of braking force needed to take a car of X weight from Y miles per hour to zero in a given amount of time is the same whether by friction brakes or regen brakes.

You can reduce the total braking force needed by extending the time, in which case aerodynamic forces and rolling resistance will contribute some more to the reduction in speed.

In an EV with one-pedal driving you can still stop quickly or slowly. In an ICE car you can stop slowly with more coasting or quickly with more braking force.

I don't see how the drivetrain is going to make a difference to the amount of braking needed to stop and thus force exerted on the tire. The added weight of most EVs would be the larger factor.

> I'm aware. The point I'm making is that EVs apply more braking than ICE vehicles do, due to the specifics of the implementation of regen braking that all manufacturers have chosen

Hyundai and Kia EVs have a 5 level setting for what happens when you lift up on the accelerator, either partially or fully.

At level 0 the regeneration is so low that I don't notice a difference between that and being in neutral. It slows down way less than an ICE does when not in neutral.

> If you just take your foot off the accelerator, any modern EV will apply some amount of regenerative braking. It's not really possible to hold the accelerator pedal at the exact position where you are not applying motor power but also have 0kW of regen braking, certainly for any extended period of time.

Tire wear is not a linear function of acceleration. Is there any reason to believe that variations from not being able to hold your foot perfectly steady, assuming you aren't have spasms, will be big enough and/or last long enough to make a non-trivial difference?

But ICE vehicles can be in engine breaking mode. You pretty much never "coast" (e.g. put the vehicle in neutral or hold the clutch in). I get what you're saying but it feels like it's way in the margin if an effect at all. Do you have some reference? People keep talking about tire wear but my model 3 tires (which are relatively high performance soft tires) aren't wearing any faster than the wear I used to get on my Subaru before. I just don't drive aggressively. Flooring the accelerator must be the big difference. I don't think the weight difference is that large, certainly compared to trucks.

I tend to agree with your overall point, but if we're talking about a 1-2 kW of "standby" regen, surely the rolling resistance of any kind of vehicle is in the same ballpark anyway (source: it takes multiple people to push a broken down car).