What generates more regen in the Mach-E -- 1 pedal or 2 pedal driving? The measured data proves it.

[kkmoon]

I can't think of a place where can safely do repeated 70-0 tests but I can do slower test stop tests like I did yesterday.

I have a good spot right near my house where I could test this. I'll try it out if I can get home in the daylight.

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[mkhuffman]

I have a good spot right near my house where I could test this. I'll try it out if I can get home in the daylight.

Make sure you are using a good Bluetooth OBDII scanner, and NOT Bluetooth LE. I had a lot of trouble with data accuracy and resolution using my LE scanner and had to switch to another scanner. LE is meant for audio headphones and other low energy applications and I found it isn't sufficient to accurately capture data for this test. The data sampling rate was way too low.

 

[kkmoon]

Make sure you are using a good Bluetooth OBDII scanner, and NOT Bluetooth LE. I had a lot of trouble with data accuracy and resolution using my LE scanner and had to switch to another scanner. LE is meant for audio headphones and other low energy applications and I found it isn't sufficient to accurately capture data for this test. The data sampling rate was way too low.

Thanks for pointing out. I have the CX and MX+, I'll make sure to use the MX+.

 

[Sam2084]

I like 1PD for the most part, but do not like it in reverse so I use 2PD. Slow speed braking is a lot worse in 2PD though and you prove that here. I don’t have an issue with too much braking on tip in as I’m used to the pedal response there, but there is no feel deeper into the pedal and braking from 5-0 can be abrupt. Ford needs to take over that part of the brake sequence better like the do in 1PD so you get a perfect smooth stop every time.

 

[mkhuffman]

Thanks for pointing out. I have the CX and MX+, I'll make sure to use the MX+.

I used the MX+ and it worked great.

 

[Motomax]

I will need to edit my OP because I cannot feel the regen difference between Whisper and Unbridled in 1PD. Have you measured a difference? I will do some more testing myself to see if I can get 100 kW in 1PD. I could not get that in Whisper.

Looking forward to this testing because like you I’ve never felt a difference in any mode with 1PD. Although, it might not be accurate for me since I only have one motor so my regen is already limited.

 

[Ajax]

I think it's also worth thinking about efficiency in terms of one's own body. In my case, I have a bit of arthritis from a broken ankle 10+ years ago and 1PD+Unbridled is really a godsend for me. When my MME was in the shop and our loaner was an ICE F-150, I really felt the difference, even on short trips. So even if the two modes are more or less the same, I'll do 1PD all day, every day just to ease wear and tear on my joints. There are still times when I need to slam the brakes of course in 1PD but it's maybe just once or twice per trip.

 

[kkmoon]

Yeah, do a 70-0 in the different modes by just lifting off in 1PD. Make sure battery is warmed up above 55F.

I did a couple tests yesterday afternoon. I was surprised after work yesterday when the temperature "warmed up" to 47F. It was probably too cold for these numbers to mean much, but I'll share anyway. I did get about 15 minutes of preconditioning when I remembered I could plug in a nearby EA station into the nav.

Just before starting:

Whisper mode 1PD 70-0 regen braking, very slight decline:

Engage mode, everything else the same, but going the opposite direction on flat ground:

And Unbridle going back the other way slightly downhill:

And checking temp afterword:

So the regen was basically the same for all modes. But that might not mean anything since the battery was kind of cold? I actually got slightly higher regen in whisper mode when the battery was colder. Kind of strange.

I got the same result in unbridle and L also.

 

[Tscates1]

Despite occasional spirited stops in N, my friction brakes are horribly noisy. Therefore, there's no question about when they apply. 5 mph. Doesn't matter what mode (Whisper/Engage/Unbridled/1PD/2PD). If I hit the brakes hard (overcoming max regen), they apply at any speed. I can't imagine the car would purposefully regen harder in one mode vs the next, at least not to any significance.

Energy transfer isn't 100% efficient - if you're using 1PD and you are constantly gaining and losing fractions of a mph due to minor foot movements, then not only is this is the least efficient but it also causes the most tire wear. The most efficient? Whichever mode you can manage to coast the most before doing a somewhat gradual stop.

For me, that's 2PD Whisper. Also lets me move my leg around without making everyone in the car vomit.

But, I think the difference is negligible. Drive in whatever mode you like.

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