Does one-pedal drive strain electric motors/gear train?

[Gloff]

I drove my ‘21 for 2 yrs in 1PD and rarely used the brakes. Then just a month or so ago, began driving in 2PD as my wife said it’s a ‘smoother’ ride for her. And very unexpectedly… efficiency increased by 15% or so. I suppose it could be my driving style changed?? But doubtful. I have noticed the brake regen alert popping up much more frequently at 100%. Frankly, it rarely appeared in 1PD. So… it’s 2PD for me now. And yes, I’ll need new brake pads sometime down the road. But a worthwhile cost to gain 15% efficiency (for me, anyway).

The 15% increase is probably due to warmer temps in spring.

Brake coach only appears in engage drive mode, so you must have switched modes.

There is something to be said for the efficiency of motion conservation vs regen though. Due to small losses during regen, and small losses on acceleration, you're better off in 2pd, only using regen when necessary to stop. Likely not all of the 15%, but certainly some of it.

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[Mach1E]

lol… did you really just go back and edit in some patronisation and foot stomping? Hilarious. I am well aware of the identical regen and blended braking, thanks. Identical isn’t real world though, is it? And that was where my confusion lay… since, you know, my obd and even brake coach can confirm… I am less efficient in the real world, in 2pd… you knew what I meant too… but you go ahead and prove the commentators on Reddit right about the types of jobsworths this forum houses ?

No, I edited my post to add details to make it as clear as possible.

Because after multiple posts saying the exact same thing…….people were still confused.

If you understood how blended braking works in the Mach E, then you wouldn’t have asked the question about using the brake pedal in 1PD. ?‍

Yes, it’s confusing to a lot of people here. That’s why we keep getting the same questions.

The point of my post was to clarify, not to patronize or foot stomp. The sarcastic foot stomping post happened back in post #21. ?

Yes, it is very hard to drive identically in real world settings. That added to the fact that our measuring stick (GOM) isn’t super accurate result in people thinking different modes yield different efficiency.

 

[HuntingPudel]

If you have a GT or have enabled the power meter in a non-GT, you can see the result of using the brake pedal or using the go pedal to slow the car. As was previously said, similar rates of acceleration will yield similar amounts of power transfer. The brake pedal can be used to change velocity without applying the mechanical brakes, just like 1PD operates. It just takes practice. ?‍?

 

[67 Stang Convertible]

Perhaps if Ford actually put a power/regen meter on the console of ALL their EVs, people would realize that it regens in every mode, including 2 pedal. There's about 50% wasted space in the center console and it blows my mind that they couldn't think of anything relevant to put there. I love the car but the software is absurdly poor.

I would settle for just re-centering my speedometer!!!

 

[phidauex]

Its OK folks, not worth getting frustrated about. Different EVs do this differently, and they all work differently from ICE vehicles. Moreover, the fact that we get very little feedback from the car on what is going on makes it very hard to tell unless you connect an ODB-II reader and watch the behavior live.

Here are a few posts with driving dynamics data from way back in the olden times of 2021 when we were all still figuring this stuff out. Lots of datalogs showing regen behavior, brake switch behavior, etc.

https://www.macheforum.com/site/threads/mach-e-brake-pressure-data-for-each-drive-mode.11284/

https://www.macheforum.com/site/threads/driving-dynamics-and-charging-data-files.8473/

 

[bbulkow]

Perhaps if Ford actually put a power/regen meter on the console of ALL their EVs, people would realize that it regens in every mode, including 2 pedal. There's about 50% wasted space in the center console and it blows my mind that they couldn't think of anything relevant to put there. I love the car but the software is absurdly poor.

It took me 10 minutes with forscan to get the power meter.

It's tucked under the range on the left hand side if you enable it. It's just right, not intrusive, not invisible. It's near all the "power things" like range which makes sense. Well done.

I also agree it's crazy to not enable it by default.

The fact that they did the work and it's just right then decided not to ship it implies to me the software is not "absurdly poor", but instead I don't agree with some of their decisions about what to ship or not. I would politely say "opaque and mystifying product decisions".

 

[bbulkow]

The 15% increase is probably due to warmer temps in spring.

Brake coach only appears in engage drive mode, so you must have switched modes.

Could be spring.... but.....

The 15% could be a side effect of a passenger in the car. Not talking about weight - but besides smoothness, speed habits could change. Less WOT. 15% does seem like a lot, but 75 vs 65 will be more than 15%, for example.

If I was OP, I would go back to 1PD and see if I could drive it "smoothly", and what the range effect is.

 

[ctenidae]

Man, that first snippet is almost entirely, if not completely, incorrect.

Well done internets!

 

[dj_stang]

Because that statement is also false. 1PD and 2PD have the same efficiency unless you are braking harder in 2PD than 1PD.

Exactly, which is why I don’t buy Porsche’s argument that 2PD is more efficient because it all comes down to driving style.

Personally it’s a lot easier to be ultra efficient in 1PD by anticipating future decelerations and knowing I am never ever using the brake pads. In 2PD I’d have to somehow know when the physical brakes start blending in which is throwing away energy.

 

[Mach1E]

Exactly, which is why I don’t buy Porsche’s argument that 2PD is more efficient because it all comes down to driving style.

Personally it’s a lot easier to be ultra efficient in 1PD by anticipating future decelerations and knowing I am never ever using the brake pads. In 2PD I’d have to somehow know when the physical brakes start blending in which is throwing away energy.

Porsche just claims coasting is more efficient….. which is true. But it’s hard to drive like that unless you’re hypermiling.

You can coast in 1PD anyways, but also not as easily.

For the Mach E, again, the blending of physical brakes in 1PD and 2PD is identical.

And in 1PD you are using the brake pads for the last few mph before stopping……which is identical to when 2PD uses the brake pads.

I’ll just throw the word “identical” in one more time for emphasis. ?

 

[MachEMaster]

1 PD sure does mess with my AM radio station though! Lol

 

[johnnycombo]

Thank you for clarifying that @MachLee

I drive 2PD as I can't drive 1PD due to urban traffic and having to jump on the brakes all the time.
1PD makes me nauseous as it's very abrupt when I jump on the brakes.

The nauseous part is a very real thing for everybody and passengers. But with a little time you become much better at one pedal breaking and it's no longer a problem. The real trick is to get away from lifting your foot to quickly and lift slowly to develop a feel for the Regen being applied, more like feathering a clutch in a standard transmission to go, you feather the accelerator up to s

It’s not an opinion. It’s how the Mach E works.

We aren’t comparing 1PD on Mach E to 2PD on ICE.

It’s 1PD Mach E vs 2Pd Mach E.

I never see worn brakes because I don't drive it like is stole it.

 

[dj_stang]

Porsche just claims coasting is more efficient….. which is true. But it’s hard to drive like that unless you’re hypermiling.

You can coast in 1PD anyways, but also not as easily.

For the Mach E, again, the blending of physical brakes in 1PD and 2PD is identical.

And in 1PD you are using the brake pads for the last few mph before stopping……which is identical to when 2PD uses the brake pads.

I’ll just throw the word “identical” in one more time for emphasis. ?

Right, what I’m saying is that driving behavior is not identical. So based on the way you drive one can be more efficient.

For the way I drive, knowing the limits of regen braking with 1PD helps me anticipate deceleration events and plan accordingly. 2PD doesn’t tell you when you’re using regen vs pads so you can’t anticipate without first learning that via 1PD.

 

[Space_Pony]

It's too bad that we paid more for our MME premium than that Kuga/Escape but the Kuga has a better display showing regeneration.

 

[Mach1E]

Right, what I’m saying is that driving behavior is not identical. So based on the way you drive one can be more efficient.

For the way I drive, knowing the limits of regen braking with 1PD helps me anticipate deceleration events and plan accordingly. 2PD doesn’t tell you when you’re using regen vs pads so you can’t anticipate without first learning that via 1PD.

Yeah, unfortunately there isn’t anything that tells you when the brake pads take over, but really they don’t except the last few mph or when braking harder.

I drive exclusively 2PD and I can say from experience that the pads don’t do squat during normal driving.

I can tell when my rotors are rusty after a rain. You can hear when the pads engage and they don’t until coming to a complete stop. I have to coast in neutral (no regen) and hit the brakes from about 30 mph to clean the rotors off.

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