For what it's worth, I might compare this discussion with my experience with my Renault Fluence. The Fluence has no [apparent] interaction between regen and brakes at speed - they appear to be two separate systems.
I am very happy with this, and would definitely advocate that this mode of operation is to be preferred for EVs. When you back off, you know all the decel is regen, and nothing is wasted in the brakes.
The max regen is 30kW. Decelerating down to approx 40mph (I'll test and check that figure in due course), the regen power then ramps off linearly (which serves to provide a constant deceleration rate). The Fluence has a slightly annoying creep function (I'd prefer it just came to a dead-stop, personally, to allow for full 'one-pedal' driving) and so the regen rolls of once down to ~7mph.
I think that, maybe, too much emphasis has been put on making EVs drive exactly like 'regular' cars, so that the Leaf coasts a bit like a large passenger vehicle with an auto slush-box. (And the Fluence has a 'creep' function - which, actually, doesn't work because if you keep your foot slightly on the brake it cuts the motor, so you roll back on a hill if you try that without using the hand-brake!)
Whereas, in actual fact, the sort of folks who will [currently] buy an EV want it to do what EVs should do, which includes one-pedal driving. Seems to me too much emphasis on making EVs drive in a way they VMs think the 'mass market' would expect, instead of focussing on the desires of their most immediate sales prospect. But maybe they have it right and need to do it this way, I don't really know, but I can say that it seems to be to be far more ideal for 'hypermile' type driving to have mech braking and regen work independently.
I am very happy with this, and would definitely advocate that this mode of operation is to be preferred for EVs. When you back off, you know all the decel is regen, and nothing is wasted in the brakes.
The max regen is 30kW. Decelerating down to approx 40mph (I'll test and check that figure in due course), the regen power then ramps off linearly (which serves to provide a constant deceleration rate). The Fluence has a slightly annoying creep function (I'd prefer it just came to a dead-stop, personally, to allow for full 'one-pedal' driving) and so the regen rolls of once down to ~7mph.
I think that, maybe, too much emphasis has been put on making EVs drive exactly like 'regular' cars, so that the Leaf coasts a bit like a large passenger vehicle with an auto slush-box. (And the Fluence has a 'creep' function - which, actually, doesn't work because if you keep your foot slightly on the brake it cuts the motor, so you roll back on a hill if you try that without using the hand-brake!)
Whereas, in actual fact, the sort of folks who will [currently] buy an EV want it to do what EVs should do, which includes one-pedal driving. Seems to me too much emphasis on making EVs drive in a way they VMs think the 'mass market' would expect, instead of focussing on the desires of their most immediate sales prospect. But maybe they have it right and need to do it this way, I don't really know, but I can say that it seems to be to be far more ideal for 'hypermile' type driving to have mech braking and regen work independently.