Will the MME coast when put in drive like a ICE.

[JohnFoxeSheets]

John, are you sure? Mine will creep forward at 4mph if I do not apply the brake (I am always in Unbridled/2-PD). I’m on pretty flat/level ground where I live. ?‍?

Hmmm, I only ever use 2PD when I park (I like being able to feather the brake rather than feathering the accelerator), so yeah, I think you're right - it probably won't actually stop. If I had any flat ground around me I could test it out ?

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[HuntingPudel]

Hmmm, I only ever use 2PD when I park (I like being able to feather the brake rather than feathering the accelerator), so yeah, I think you're right - it probably won't actually stop. If I had any flat ground around me I could test it out ?

Come down to Foster City. Your car will idle all the way around town. ??

 

[ctenidae]

Now, we haven’t really got into a discussion yet comparing to compression braking using a manual transmission…

Hold on, I've got that info in the frunk.
So glad I can open the frunk from PaaK.

what?

 

[Teleks]

I have actually been wondering this a lot. Why does it need to coast? I'm not a fan of 1PD. But I'm almost considering switching to 1PD because I think this idle coasting is so unnecessary and annoying. Is there any good reason to have it? Like any scenario whatsoever where this "feature" is of any use?

With an ICE car this is not really a feature, it's just that the car has to coast if it's in any gear or else the motor will stall, correct? But with an electric car there's not reason to include this as a feature? Like no mechanical reason, but also no usability reason in my opinion..

 

[Mach-Lee]

What happens when you take your foot off in:

1PD - Vehicle brakes to a stop, decel rate dependent on drive mode. No creep. Brake pedal is not typically used unless a fast stop is necessary.

2PD - Vehicle gradually coasts down to 4 MPH like an ICE, decel rate much less than 1PD, but still dependent on drive mode. Vehicle will creep at 4 MPH on flat ground with foot off pedals.

2PD is designed to function exactly like an automatic transmission in an ICE vehicle. Auto hold can modify 2PD to not creep after coming to a complete stop.

If you want to creep in 1PD, you need to press the accelerator pedal very lightly. It is possible to easily maintain a constant speed of 1-3 MPH in 1PD. Doing that in 2PD is very difficult because it requires precise brake pedal modulation. Therefore 1PD is much less frustrating in stop and go traffic than 2PD.

 

[Rayne]

1PD off -
Whisper mode will coast the most distance.
Engaged mode will coast less and regen more.
Unbridled mode will regen the most.

Speaking of, it's exactly this why I now mainly drive only in unbridled mode. Whisper mode had me feeling like my MME was constantly willing itself forward and not slowing down for several seconds after I've already taken my foot off the accelerator. Felt too "loose" to me with less control.

 

[4sallypat]

Speaking of, it's exactly this why I now mainly drive only in unbridled mode. Whisper mode had me feeling like my MME was constantly willing itself forward and not slowing down for several seconds after I've already taken my foot off the accelerator. Felt too "loose" to me with less control.

100% correct - and I love the unbridled regen - feels more like my PHEV regen.

Still can't stand 1PD - very harsh IMO.

 

[HuntingPudel]

I have actually been wondering this a lot. Why does it need to coast? I'm not a fan of 1PD. But I'm almost considering switching to 1PD because I think this idle coasting is so unnecessary and annoying. Is there any good reason to have it? Like any scenario whatsoever where this "feature" is of any use?

With an ICE car this is not really a feature, it's just that the car has to coast if it's in any gear or else the motor will stall, correct? But with an electric car there's not reason to include this as a feature? Like no mechanical reason, but also no usability reason in my opinion..

My ICE cars don’t have idle creep. Manual trannies don’t do that. Well, if I put the Blazer in 4-Low and leave it in first gear I can idle creep the truck at a pace that most snails can beat. ??

 

[Teleks]

My ICE cars don’t have idle creep. Manual trannies don’t do that. Well, if I put the Blazer in 4-Low and leave it in first gear I can idle creep the truck at a pace that most snails can beat. ??

?

I've driven nothing but manual transmissions until the Mach-E. (I'm from Europe... Fun fact that I think most Americans don't know: In Europe it's not particularly "cool" to have a manuar transmission. It more likely means you have a cheap car haha.). So I'm sure we're used to different cars.. but if you put a manual European compact car in 1st gear you're 100% idle creeping. I'm also sure you know more about cars than me, so I'm a little surprised and also hesitant to contradict you haha. But that seems like the very most basic thing about cars to me: Unless you're in neutral or hitting the clutch, your car is going to be moving. And I think most people I know make use of the idle creep in their manual cars.

So what do your cars do when you're standing still and you put in 1st gear without hitting the gas? There can only two possible options, right?: They start moving or the motor stalls?

 

[HuntingPudel]

.
<SNIP>
So what do your cars do when you're standing still and you put in 1st gear without hitting the gas? There can only two possible options, right?: They start moving or the motor stalls?

Yes. Most cars will just stall out. My Blazer has a selective 2-speed transfer case that multiplies torque in Low Range. I can come to a dead stop win Low and just dump the clutch in 1st, whereupon the truck will just go. Really slowly (hence the losing a race to a snail reference), but it will go without stalling. ??

 

[Teleks]

Yes. Most cars will just stall out.

And by "most cars" you mean "most 50 year old American cars"? Or how confident are you that that applies to newer cars? Because my experience with plenty of cars from 2000 onwards is quite the opposite haha

I'm actually pretty sure that with my last car I could even 'idle coast' in second gear on a flat street!

I really probably don't even know half as much about cars as you, but in the end it likely just depends on how much gas goes into the engine when idling, right? That might have just changed over the years, so that it's harder to stall the motor with newer cars. Wouldn't that make sense?

 

[Rayne]

100% correct - and I love the unbridled regen - feels more like my PHEV regen.

Still can't stand 1PD - very harsh IMO.

Funny you mention. my siblings have Teslas and I volunteered to babysit one for a couple of weeks while they were on vacay. Got very used to 1PD and thought I'd want to use it once I got my MME. Had the mode on for less than an hour before I became too annoyed to keep it on.

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