Low-Regenerative mode?

[hmp10]

Maybe in FL. My last 4 ICE vehicles all needed brakes after 6 or 7 years. Not because the pads were worn. The cars each had ~50 - 60,000 miles at that point. The rotors would rust from salt, calcium and magnesium chloride and moisture. If not driven for a rainy week the rotors would rusted enough to cause a pulsating pedal.

Not just in Florida. Per Kelley Blue Book:

"The more you use regenerative brakes, the less you need to use traditional friction brakes. That means fewer trips to a service center for brake pads, rotors, and shoes. With regenerative braking, some hybrids and EVs can go around 100,000 miles between brake services."

https://www.kbb.com/car-advice/regenerative-brakes-how-they-work/#:~:text=Reduced%20brake%20wear%3A%20The%20more,100%2C000%20miles%20between%20brake%20services.

Also, one of the reasons that VW gave for going with less-expensive drum brakes on their ID electric vehicles is the reduced braking load and the longer service life conferred by regenerative braking.

 

[Pragmatic]

I'm sure regeneration will prevent rusting rotors in areas that use aggressive liquid de-icers on roadways for several months every winter.

 

[hmp10]

I'm sure regeneration will prevent rusting rotors in areas that use aggressive liquid de-icers on roadways for several months every winter.

All you have to do in an EV is use the brake pedal occasionally while still keeping the car set to regenerative mode. Just because regeneration is engaged doesn't mean you can't use friction braking to clean or dry rotors.

There may be a need to reduce or turn off regenerative braking in certain traction conditions, but it is not necessary just to keep rotors clean. (I spent most of my career in New England and the northern Midwest and am familiar with winter driving conditions in snow and ice climes.) In fact, Tesla has removed the ability to turn regenerative braking completely off.

Due to the humid salt air in Florida, any brake rotors develop rust quickly when sitting after a rain or a car wash, whether an EV or ICE vehicle. I engage the friction brakes on our Tesla and our Air to remove the rust after such events all the time without ever taking the cars out of high regen mode.

 

[Bobby]

All you have to do in an EV is use the brake pedal occasionally while still keeping the car set to regenerative mode. Just because regeneration is engaged doesn't mean you can't use friction braking to clean or dry rotors.

There may be a need to reduce or turn off regenerative braking in certain traction conditions, but it is not necessary just to keep rotors clean. (I spent most of my career in New England and the northern Midwest and am familiar with winter driving conditions in snow and ice climes.) In fact, Tesla has removed the ability to turn regenerative braking completely off.

Due to the humid salt air in Florida, any brake rotors develop rust quickly when sitting after a rain or a car wash, whether an EV or ICE vehicle. I engage the friction brakes on our Tesla and our Air to remove the rust after such events all the time without ever taking the cars out of high regen mode.

To clarify this, you don’t need to select any particular mode in our Lucid in order to get the friction brakes to sweep off the rotors. Just step on the brake pedal. In some EVs, stepping on the brake pedal actually activates regeneration and so may or may not use the friction brakes. I know in my other EV, it only used friction brakes during panic stops or below 4 mph.

 

[Pragmatic]

I don't think you get what I'm saying. It does not matter which regenerative level is used, rust from brine mixtures spayed on roads will likely cause brake replacement long before the pads are used up. Yes rust from rain can be cleared with brake use but the rapidly of rust from the brine sprays will cause brake failure no matter how the brakes are used.
The Lucid may surprise me, I'll let you know after 100 trips through NE snow storms (I generally drive 500 miles round trip 10-12 times each winter over snow covered roads).