Ford Lightning one pedal drive

[Henry Ford]

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.

The extra energy has to go somewhere. For instance, there could be an incandescent light bulb that is powered in one driving mode but not the other. That would explain where the energy goes. That would be a terrible use of energy but it would explain it.

I've yet to hear a theory on how 1PD and 2PD differ in how they use energy. Logic says they don't but maybe there's some reason to use more energy in one mode.?

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[Daragh]

Nope don’t use it, sport mode in normal pedal mode for me ?.

 

[RickKeen]

I've yet to hear a theory on how 1PD and 2PD differ in how they use energy. Logic says they don't but maybe there's some reason to use more energy in one mode.?

Purely conjecture, but likely in 1 pedal mode, lifting the accelerator pegs the deceleration to a set percentage of regen at whatever speed you are at. 1 Pedal never engages the friction brake (unless you also press the brake pedal).

In 2 pedal mode, usually when you first engage the brake at 65 MPH, you have to be careful not to exceed 100% regen and engage the friction brake. You might not notice because by the time you look at the meter, you have slowed down into the range where it can easily do 100% regen.

 

[jthiesse13]

Hey, just curious how many of you use the one pedal drive. And how much mileage you find it actually adds.

I only drive in one pedal mode.

 

[potato]

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.

Better than regen to the battery, I have used my OBD reader to show the hydraulic pressure in the brake system during a typical 2PD stop that showed 100% energy returned. The brake pressure is zero. No friction brakes used (except at the end to hold the stop). I've posted the graph from CarScanner in one of the several other threads on this topic.

 

[Henry Ford]

Purely conjecture, but likely in 1 pedal mode, lifting the accelerator pegs the deceleration to a set percentage of regen at whatever speed you are at. 1 Pedal never engages the friction brake (unless you also press the brake pedal).

In 2 pedal mode, usually when you first engage the brake at 65 MPH, you have to be careful not to exceed 100% regen and engage the friction brake. You might not notice because by the time you look at the meter, you have slowed down into the range where it can easily do 100% regen.

Exactly! You've just illustrated how driving technique is the significant difference between the modes. If the friction brakes are engaged more energy is lost via heat in the brake pads and discs.

 

[f15zmark]

No one is claiming universally one is better than the other

I claim that one pedal driving is definitely better — except for those people who can’t figure it out or don’t want to. I’ve been doing it for over 10 years on various vehicles. It is clearly superior.

 

[MotoGary]

Everyone will choose the mode that best suits their individual situation. But let's be very clear on one thing: One pedal Sneetches are no better than two pedal Sneetches! ?

 

[f15zmark]

It's a pretty big claim to state that 1pd drive is better for everyone.

Thanks but no thanks, with two lane county roads and lots of cruise control it is decidedly not better or superior.

I didn’t say for everyone. I specifically said that it is not for those who can’t figure it out or don’t want to.

I live out in the country and use it all the time. Grew up on 2 pedal driving. 1 pedal is better for me. Took a couple hours to get used to it. That was 10 years ago.

Having one steering wheel to steer in both directions is better than one steering wheel to go right and another wheel to steer left!

 

[ka-chow]

I just have settled into Sport Mode. No one pedal. Seems to be my happy place. There’s plenty of regen there anyway. But doesn’t feel so abrupt.

 

[Mmiketa]

Better than regen to the battery, I have used my OBD reader to show the hydraulic pressure in the brake system during a typical 2PD stop that showed 100% energy returned. The brake pressure is zero. No friction brakes used (except at the end to hold the stop). I've posted the graph from CarScanner in one of the several other threads on this topic.

Why is that better than regen to the battery? No one is saying that your brakes were applied if brake coach says you got 100%...so we know that the hydrolic brake pressure is 0 without the OBD reader. The number that would shut everyone up (I think) is to see at max regen for both modes how much power is going back to the battery. If one achieves more regen than the other, we have our answer.

 

[Zprime29]

Why is that better than regen to the battery? No one is saying that your brakes were applied if brake coach says you got 100%...so we know that the hydrolic brake pressure is 0 without the OBD reader. The number that would shut everyone up (I think) is to see at max regen for both modes how much power is going back to the battery. If one achieves more regen than the other, we have our answer.

Bingo, I've started logging my trips to see what the max flow into the battery is while I'm driving. I'll give it a week, grab the highest and then attempt the same with 1 pedal. I'll also try to max it out though I don't want to brake check anyone so it will be situational if I can pull that off.

 

[potato]

Why is that better than regen to the battery? No one is saying that your brakes were applied if brake coach says you got 100%...so we know that the hydrolic brake pressure is 0 without the OBD reader. The number that would shut everyone up (I think) is to see at max regen for both modes how much power is going back to the battery. If one achieves more regen than the other, we have our answer.

Because if the friction brakes are not used, there is nowhere else for the energy to go but into the battery. If you measure battery power in/out, that does show that some amount of regen is happening, but due to blended braking there could also be some energy wasted as heat if the friction brakes are applied at all. If the friction brakes are not applied then no energy is wasted. It is physically impossible for 1PD to recover more energy than 2PD if the friction brakes are not used.

If you disagree with that last sentence, then please explain where the kinetic energy went if not all of it went back into the battery via regen.

 

[rdr854]

Thread title FIXED, now if the OP could fix his vehicle description, that would be awesome

It’s quasi fonetik!!

 

[Henry Ford]

That is literally stating it is better for everyone...

It's great you like it, but I constantly use cruise and regularly coast down for various speed changes, traffic conditions, and other events. I can literally push one button on the steering wheel, that is better than having to hold the gas pedal and modulate speed. Same for light traffic on the highway. In fact it's the same for many of the stop signs and intersections here.

0PD. That's a new one to me.?

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