Most eco mode

[A-A-Ron]

Why so concerned with eco? Trying to extend your range. Have fun driving how you want and you'll still be more efficient than a prius.

I've known this since before I bought my car (honestly, same is true in an ICE) but it still took me a while to practice it. Truth is, I can have fun with it or I can drive it around like I'm taking grandma to church and she is wearing a new dress and holding a crockpot full of chili and at the end of the month I may have saved an extra few dollars for all that added caution and worry and it's just not worth it to eek out a couple extra miles of range or save a kilowatt at the end of the day.

The only exception is if you're road tripping and trying to extend range and then it's about speed, not mode or acceleration.

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[A-A-Ron]

Coasting does do regeneration at different rates for each drive mode whisper being the least amount of regeneration if you put the car in neutral, all regeneration stops, in fact, as you slow down with either unbridled mode with your foot off the accelerator in into pedal mode or if you are slowing down with your foot on the brake pedal gently Shifted into neutral, and you will feel a definite physical release of the motors as regenerative braking is dropped and you are free wheeling so while coasting neutral does not regenerate anything coasting in gear does create regeneration, especially and unbridled mode or when you press the L for low.

Whisper does not have less regen. Whisper applies lighter braking if you completely let off the throttle than the other modes. If you partially let off in a more aggressive mode and slow down at the same rate as whisper, you get the same energy regenerated. Likewise, if you let off in Whisper and hit the brakes to slow down at the same rate as Unbridle, you get the same energy regeneration as Unbridle. The only thing that's actually changing is just what level of braking it defaults to when you let off the accelerator. Otherwise, the car manages all of your reduced throttling and braking and applies regen first, and only when you're asking for more braking than it can provide with regenerative braking does it actually apply the brakes.

 

[Homestead]

Have you not already noticed that the car has a elevation or angle of descent sensor when you coast downhill you don’t actually Coast it maintains your speed almost as if you had advanced cruise control on you only actually maybe gain a mile or two per hour speed if you selected neutral and went downhill, I’m sure you would Coast much faster. You can feel that the vehicle does not free wheel downhill. It is regenerating, trying to maintain the speed you were when you took your foot off the accelerator. I suppose you have to have the one pedal mode off for you to actually notice this one of the benefits of not using one pedal mode. I’ve already put 11,000 miles on my MME in seven months driving all over the north east states and as far as Detroit.

Haven't driven in the mountains yet. Only have 1200 miles on it so far. I did notice the range increasing going down a long hill however. I drive 2 pedal engage.

 

[txaggies07]

Try testing your efficiency at 80 and at 50 mph. If you get the same efficiency, please let us know what magic coating you are using on your car.

We'll wait to hear back.

I am pretty sure he is equating how much pedal press with efficiency. Nearly everything in his very long post was wrong in some way.

 

[abfoot7818]

Whisper does not have less regen. Whisper applies lighter braking if you completely let off the throttle than the other modes. If you partially let off in a more aggressive mode and slow down at the same rate as whisper, you get the same energy regenerated. Likewise, if you let off in Whisper and hit the brakes to slow down at the same rate as Unbridle, you get the same energy regeneration as Unbridle. The only thing that's actually changing is just what level of braking it defaults to when you let off the accelerator. Otherwise, the car manages all of your reduced throttling and braking and applies regen first, and only when you're asking for more braking than it can provide with regenerative braking does it actually apply the brakes.

There is just less regeneration over the same same distance as it is not regenerating or slowing down as quick as the other modes that’s why I love whisper I like the car to Coast I don’t like the feeling like I’m stuck in second or third gear. The lighter rate of regen is also referenced in the whisper mode, being the best mode for slick surface, driving further, proving that it has a slower rate of slowing down the car. So I think we’re stuck on the wording, but with whisper, allowing the car to travel farther it is not regenerating at as fast rate, unless the brake pedal is applied. A different rates of slowing down is not a brake pad, but rather the amount of resistance from the regeneration.

 

[Mach1E]

There is just less regeneration over the same same distance as it is not regenerating or slowing down as quick as the other modes that’s why I love whisper I like the car to Coast I don’t like the feeling like I’m stuck in second or third gear. The lighter rate of regen is also referenced in the whisper mode, being the best mode for slick surface, driving further, proving that it has a slower rate of slowing down the car. So I think we’re stuck on the wording, but with whisper, allowing the car to travel farther it is not regenerating at as fast rate, unless the brake pedal is applied. A different rates of slowing down is not a brake pad, but rather the amount of resistance from the regeneration.

Yes, it’s easier to coast in whisper.

But you can coast in any mode.

The only difference is how much pressure you have to put on the gas pedal to coast. In whisper, it’s none. But in engage, you push it a little then in unbridle a little more, and 1PD a little more.

And in all of those modes you end up coasting.

 

[Progress]

I posted this in a separate thread, but it is relevant here. Based on previous posts, it seems that all drive modes give similar efficiencies for highway driving. However, I have not seen range testing for Unbridle Extend mode in the GT models. In this mode peak power is limited, battery conditioning is turned on, regenerative braking, stability control and traction control are reduced, while lane-keeping and Blue Cruise are disabled. Perhaps these modifications could increase range.
I am planning a trip from San Diego to Phoenix so I have been measuring the efficiency of my driving manually. In Whisper mode with 1 pedal driving on, several trips on the highway totaling 130 miles in mid-60 degree weather and 68 mph set on Blue Cruise yielded a calculated 2.35 mi/percent battery used, or 2.6 mi/kWh (assuming a 91 kWh battery). In 44 miles on the freeway in Unbridle Extend the efficiency was 2.2 mi/percent battery used, or 2.4 mi/kWh. Since I had to drive manually the speed fluctuated considerably more than with Blue Cruise. I am not sure that the approximately 6% lower efficiency in Unbridle Extend is totally accurate, but this result shows that it is unlikely that that drive mode would yield an extended range over other modes. I can confirm that manual calculations for expected range and mi/kWh yield different results than those shown in the car.

 

[abfoot7818]

Yes, it’s easier to coast in whisper.

But you can coast in any mode.

The only difference is how much pressure you have to put on the gas pedal to coast. In whisper, it’s none. But in engage, you push it a little then in unbridle a little more, and 1PD a little more.

And in all of those modes you end up coasting.

Interesting I never considered pressing on the accelerator (I do not have a gas pedal) as coasting. I thought by definition coasting is leaving your feet off the pedals in standard 2 pedal driving. For further clarification if I shift into neutral, I would call that freewheeling. Which, even on the slightest of northern Virginia hill, you can feel the car completely disengage from what it normally does, trying to preserve the speed at which you last took your foot off the accelerator.

 

[CTZ]

Interesting I never considered pressing on the accelerator (I do not have a gas pedal) as coasting. I thought by definition coasting is leaving your feet off the pedals in standard 2 pedal driving. For further clarification if I shift into neutral, I would call that freewheeling. Which, even on the slightest of northern Virginia hill, you can feel the car completely disengage from what it normally does, trying to preserve the speed at which you last took your foot off the accelerator.

But in 1PD, if you're neither applying power to the wheels or regenerating back to the battery, is it not considered coasting? What else could it be? Torque is not being applied to the wheels in either direction.

 

[abfoot7818]

That’s why my comment was only regarding two pedal mode.. I think you’re splitting hairs with absolutely no indication on the instrumentation on exactly when you have coasted or when you are maintaining your speed especially as the elevation has slight variance, and you have changes from wind resistance. The slightest sneeze or wiggle of your foot and you’ve either accelerated or decelerated that’s why they don’t recommend one pedal mode in bad weather conditions, I really couldn’t tell you exactly where that finite point is on one pedal driving and I didn’t try to. my comment only was regarding two pedal mode. Coasting for me is just like coasting on a bicycle when you stop peddling you’re coasting. Anyway, as it has been posted in this forum and other vehicle forums, one pedal mode is not the most economical mode. The process of converting energy from mechanical to electrical and back again always has waste.

 

[Mach1E]

That’s why my comment was only regarding two pedal mode.. I think you’re splitting hairs with absolutely no indication on the instrumentation on exactly when you have coasted or when you are maintaining your speed especially as the elevation has slight variance, and you have changes from wind resistance. The slightest sneeze or wiggle of your foot and you’ve either accelerated or decelerated that’s why they don’t recommend one pedal mode in bad weather conditions, I really couldn’t tell you exactly where that finite point is on one pedal driving and I didn’t try to. my comment only was regarding two pedal mode. Coasting for me is just like coasting on a bicycle when you stop peddling you’re coasting. Anyway, as it has been posted in this forum and other vehicle forums, one pedal mode is not the most economical mode. The process of converting energy from mechanical to electrical and back again always has waste.

We have instrumentation on GT models (power meter).

But coasting in any mode isn’t exactly hard to do. Slightest wiggle of your foot?

That’s exactly how people drive every car. You slightly change your foot pressure to maintain speed, accelerate or slow down. And yes, that includes coasting to a stop if you want.

How fast you drive, accelerate and decelerate determines efficiency in the Mach E, not the drive mode.

And for “unbridle extend,” that may be the only exception to the rule because as you stated “regenerative braking is reduced.” That means more friction brakes which is less efficient. They likely do this in that mode to keep the battery slightly cooler. But it’s designed for track use only, not for efficiency.

 

[CTZ]

How fast you drive, accelerate and decelerate determines efficiency in the Mach E, not the drive mode.

Absolutely. Just for fun, I did a road test in all 6 modes and the energy use was exactly the same for each one because I drove the same. Unless you add friction brakes into the mix, it makes perfect sense. There are probably variables that are different in each mode but don't make a difference in the big picture.

 

[Mach1E]

Absolutely. Just for fun, I did a road test in all 6 modes and the energy use was exactly the same for each one because I drove the same. Unless you add friction brakes into the mix, it makes perfect sense. There are probably variables that are different in each mode but don't make a difference in the big picture.

And even if you throw out the tests and just think about it conceptually, it makes sense-

We have a blended braking system and no transmission. It takes a specific amount of energy to move your vehicle to point A and B and no matter the drive mode, it recaptures regeneration exactly the same amount as well.

The problem with ANY test we do is they don’t remove all variables. Temperature, state of charge and even wind speed make a big difference. You could have identical inputs (braking and acceleration and speed and drive mode) and still get different results in your test because the wind changed direction or speed or the temperature changed a few degrees.

 

[AliRafiee]

Because in most cases, regular driving with Whisper does save more energy.

Do you have some numbers to back that up?
I have numbers that says Whisper with 1 pedal is the more efficient than without. The difference between Unbridle and Whisper is negligible.

 

[Mach1E]

Do you have some numbers to back that up?
I have numbers that says Whisper with 1 pedal is the more efficient than without. The difference between Unbridle and Whisper is negligible.

The variability in any numbers or test you have done have nothing to do with the mode you’re in.

Theyre because of how you drove in that mode or external factors like temperature and wind.

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