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Ford Lightning one pedal drive

TRCarr

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Hey, just curious how many of you use the one pedal drive. And how much mileage you find it actually adds.
75,000 miles on my ‘23 Lariat ER pulling a bunch of trailers.
All my driving is one pedal. Love it.
I think I’m smarter than the truck when it comes to anticipating what’s ahead. Otherwise I think it’s tuning is perfect for me.
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TonyCO

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Efficiency has nothing to do with my one pedal choice. I just love the drive. Also, the brake lights don’t just illuminate as soon as you lift. You can absolutely get off the gas in a smooth and controlled manner to almost “coast” as some two pedalers call it. If you feather the gas pedal you can actually slow a bit (sort of coast) without the brake lights slamming on.
 

Pacific.NW

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I hated it at first, but now use 1PD around town. The worst is getting accustomed to it then getting in another vehicle and forgetting how it coasts (even other EVs without 1PD)! “Brakes!” ?
 

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The reason you are getting better mileage in 1PD is because you are adapting your driving style to accomodate 1PD. You would get the same mileage if you drove the same way in 2PD. It's not that we "can't be convinced", there's nothing to be convinced about. 1PD does nothing to improve efficiency, and and you can get the same results in either driving mode.
You have no real evidence and neither do I. Ford possibly has detailed studies, but they don't seem to be talking . You have only your opinion that you state as fact, when we do not know the actual facts. I do not state my option as my experience, not unequivocal fact as many that don't like 1PD so. You prefer 2PD, fine by me. I prefer otherwise and have seen consistent results that vary fromy use of 2PD driving no matter how carefully I used 2PD. I will stay with 1PD and continue to state my experience asy experience and results. You do however you like.
 

Ted23Lightning

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If anyone here has any experience with diesel trucks, it’s just like having the exhaust brake on/ Jake brake.
 

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Henry Ford

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You have no real evidence and neither do I. Ford possibly has detailed studies, but they don't seem to be talking . You have only your opinion that you state as fact, when we do not know the actual facts. I do not state my option as my experience, not unequivocal fact as many that don't like 1PD so. You prefer 2PD, fine by me. I prefer otherwise and have seen consistent results that vary fromy use of 2PD driving no matter how carefully I used 2PD. I will stay with 1PD and continue to state my experience asy experience and results. You do however you like.
Anecdotal evidence and logic support what @swajames is saying.

What would make one driving method more or less efficient than the other? If they are different there has to be a reason. What's the reason?
 

electricpig

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Anecdotal evidence and logic support what @swajames is saying.

What would make one driving method more or less efficient than the other? If they are different there has to be a reason. What's the reason?
That is part of the point. The tuning of of each mode is likely not the same, but we don't have that data, therefore it is not logical to assume they are exactly the same. 100% could easily mean 100% of possible recovery for that driving mode or that tuning. As for anecdotal data, that is exact what it is, and exactly my data as well. My anecdotal data says 1PD is clearly more efficient for my circumstances. With that said, for all we know use case seems likely has some effect. But anecdotal data is very limited in usefulness. Regardless, 1PD simplifies using regenerative braking. It takes some practice on feathering the accelerator so you don't get sudden changes in braking, but once mastered is much easier IMHO. FWIW, I think it's probably that sudden shifting in braking is what bothers most people. I can understand people going back and forth between 1PD and gas vehicle that doesn't have it being bothered by shifting between driving modes.

Edit: One more point I have failed to make previously. The amount of deceleration. Full pedal release with 1PD results in a strong deceleration/braking/regen. However while applying brakes in 2PD mode, the point where you exceed "100,%" braking/deceleration/Regen feels much less intense. If 2PD is not slowing the truck down as quickly as "100%", then it seems very unlikely to be harvesting as much energy. This could be improved with a longer period, but inherent loses would still be troublesome.
 
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electricpig

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It has been explained to him multiple times, he refuses to accept it
Hahahaha, like you are all knowing, can't be wrong. Seems you were describing yourself. You have ZERO real data. Just ancestral, which is suspect.
It has been explained to him multiple times, he refuses to accept it
Hahahaha, like you are all knowing, can't be wrong. Seems you were describing yourself. You have ZERO real data. Just ancestral, which is suspect. And to show just how good your observations are, I barely participate here, so your "explained several times" nicely demonstrates the reliability of your anecdotal data.
 

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Edit: One more point I have failed to make previously. The amount of deceleration. Full pedal release with 1PD results in a strong deceleration/braking/regen. However while applying brakes in 2PD mode, the point where you exceed "100,%" braking/deceleration/Regen feels much less intense. If 2PD is not slowing the truck down as quickly as "100%", then it seems very unlikely to be harvesting as much energy. This could be improved with a longer period, but inherent loses would still be troublesome.
If the exact same truck slows from the same speed on the same stretch of road at the same temperature but uses a different amount of energy depending on whether it's in one pedal or two pedal mode, where has the extra energy gone?

The law of conservation of energy says the energy has to go somewhere (paraphrasing and simplifying) so where did it go? Why would Ford engineer a system that needlessly uses energy?
 

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I think a lot of the confusion on this comes from experiences in the Tesla world where 1PD potentially could deliver better efficiency because in most cases if you pressed the physical brake pedal you were always getting friction braking whereas 1PD used regen to facilitate braking.

The Juniper Model Y has blended braking similar to the Lightning where braking via 1PD pedal modulation or in 2PD where regen will deliver as much deceleration as it can before switching to the friction brakes. The Lightning is set up to be just as efficient in either mode assuming the vehicle is being similarly driven.
 

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Zprime29

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@electricpig The bottom line is that the truck is capable of the same amount of regen regardless of which drive mode you are in. It is strictly driving behavior (holding other outside influences like weather constant) that determines efficiency. I drive 2 pd exclusively and average 2.7mpk on my commute, 2.5 lifetime (lower due to road trip efficiency knocking it down).

While you claim you drive the same, I would be willing to bet there are subconscious biases in your driving. A more fair test would be to have a different driver who prefers 2pd driving take it on the same route and see if they can match your efficiency.
 

electricpig

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If the exact same truck slows from the same speed on the same stretch of road at the same temperature but uses a different amount of energy depending on whether it's in one pedal or two pedal mode, where has the extra energy gone?

The law of conservation of energy says the energy has to go somewhere (paraphrasing and simplifying) so where did it go? Why would Ford engineer a system that needlessly uses energy?
As I stated multiple times, personal experience and use case which is mostly suburban driving. Long distance highway travel I can see being different. And yes conservation of energy. Using 2PD and regeneration at "100%", the deceleration "feels" substantially less than if you fully release the accelerator while using 1PD. If this is in fact the case, then this strongly suggests that 1PD is returning more energy due to that conservation of energy. But to be fair, I have to quantifiable way to measure this. Again, for me it has been positive for my use case, and much easier to get best potential iMHO. But people making statements like their opinion is absolute facts, are well suspect at best

I point again to Lightning Mike YouTube channel and his test on the same loop. I have some concerns about equivalency of conditions for his test, but it's probably about the best he could do in real world conditions with weather, wind, and traffic.

My own real world use case 26 mile round trip commute, same stretch of road, same times, multiple attempts, similar weather 1PD results in about 0.3-0.4 m/kwh increase in efficiency. Result is my lifetime is 2.7 m/kwh through two winters, one summer probably about 80-85% suburban driving 50-55 mph or less with terrain with elevation changes of up to about 1200', but mostly in the 50-500' in typical driving.

Drive what suits you, I will do the same. But making claims of opinion as though they are absolutely fact is especially with no quantifiable data is over reaching.
 

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@electricpig The bottom line is that the truck is capable of the same amount of regen regardless of which drive mode you are in. It is strictly driving behavior (holding other outside influences like weather constant) that determines efficiency. I drive 2 pd exclusively and average 2.7mpk on my commute, 2.5 lifetime (lower due to road trip efficiency knocking it down).

While you claim you drive the same, I would be willing to bet there are subconscious biases in your driving. A more fair test would be to have a different driver who prefers 2pd driving take it on the same route and see if they can match your efficiency.
That is your assumption that both modes are the same capabilities. We have nothing to back that up. Seeming differences in apped of deceleration between modes at "100%" suggest they aren't in fact the same. But again, I have no way to measure that, and is in fact anecdotal. Just know my personal use case, I got substantially better in 1PD.

Yourilage.my vary as they say.
 

electricpig

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In any event, I'm done with this. Do what fits you, but nobody has an absolute answer because we don't have the needed data
 

Zprime29

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That is your assumption that both modes are the same capabilities. We have nothing to back that up. Seeming differences in apped of deceleration between modes at "100%" suggest they aren't in fact the same. But again, I have no way to measure that, and is in fact anecdotal. Just know my personal use case, I got substantially better in 1PD.

Yourilage.my vary as they say.
No one is claiming universally one is better than the other, nor did I claim you should be getting similar results. I said the truck is capable of it. How about this, using an OBDII reader we record the energy flowing into the battery from fully lifting off the pedal and compare that to the energy flowing in while using the brake pedal. That would definitively prove the truck's capability. Whether or not we take full advantage of the capability is irrelevant. It's there for those to want to strive for it.
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