Curious why some do not use 1 pedal driving.

[WXman]

I have seen in some threads that some don't use the 1 pedal driving and I wonder why. I took a 60 mile drive yesterday and only had to use my breaks twice. At the rate I will likely never have to do a brake job. Plus a little energy recovered.

For me it's because I hate it. I've trained my brain for 30 years to use two pedals and use the momentum of the vehicle to save fuel/energy. I do not want to try and untrain my brain at this point. 1PD is WAYYY too aggressive with regen braking and it's just annoying to have to keep applying pedal pressure to coast down to a stop sign, red light, or down a hill on a rural road. I honestly don't think it saves much energy because what you get back in regen you spend applying throttle at times you normally wouldn't.

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[Firn]

Not saying it doesn't use regen, but it doesn't ONLY use regen, so can't be as efficient as 1P drive.

When slowing the same amount it uses the same amount of regen. The difference is you CAN slow harder with the brake pedal.

I have monitored brake line pressure as well and using the brake pedal has ZERO pressure in the brake line up until you exceed the max the battery can take. No pressure in the brake lines, no use of the mechanical brakes.

This is a "feature" being discussed around the web right now. It's a comfort thing that is unnecessary.

https://insideevs.com/features/774880/why-do-evs-creep/

100% disagree. It is not possible to be as precise in 1pd as 2pd. The delay in response due to the throttle dead zone, as well as the need to switch from gas pedal to brake pedal, results in a lag and increased difficulty in precise positioning.

 

[25StarWhiteLightning]

... as well as the need to switch from gas pedal to brake pedal, results in a lag and increased difficulty in precise positioning.

Do you 2P drive with 2 feet??

 

[K6CCC]

Not saying it doesn't use regen, but it doesn't ONLY use regen, so can't be as efficient as 1P drive.

Incorrect. Regardless if you use 1P or 2P, once the vehicle speed gets slow enough, it MUST fade in friction brakes. The reason is there simply is not enough momentum to be able to create much electricity from the motors when they are acting as a generator. As I said, I have watched the brake system pressure in both 1P and 2P mode. In similar braking condition, the brake system pressure is as identical as can be seen with CarScanner.

 

[Firn]

Do you 2P drive with 2 feet??

No. And to creep forward you only need one, the one on the brake.

 

[25StarWhiteLightning]

No. And to creep forward you only need one, the one on the brake.

You can creep forward with 1P drive. It isn't hard and I do it at stop signs and red lights on right turns all the time. More efficient to not have to move your foot to break.

 

[hb.sagen]

I currently park in my garage with 1pd. I have to get within 2 inches of the back concrete wall.

It is hard, even after months of training. The dead zone, the lag, it takes time. But I’ve only touched the concrete once . I do back into the garage.

Will switch to 2pd during winter, hopefully that makes it easier.

I test drove the truck in 2pd, as that what I normally drove. But it took a day or two to be comfortable with 1pd, until parking in my garage is up next.

 

[Jim Lewis]

Will switch to 2pd during winter, hopefully that makes it easier.

I also invested in two devices, IIRC, that other forum members suggested in previous posts, both of which are available on Amazon: sonar distance sensors and heavy rubber curb stops. I have a little more room to spare, about 8 to 10 inches, but I try to allow 2 to 3 inches for my rear bumper and tailgate to clear the garage door, and still maintain at least 5 to 6 inches clearance from the front wall (which you call the back wall). The hardest part is keeping the sonar sensors taped to the front wall without permanently gluing or screwing them in place. I haven't found a painter's tape yet that won't slowly peel off in summer heat and humidity.

https://www.f150lightningforum.com/...sing-smoothly-into-a-garage.21199/post-417542

You'd have the problem backing in of where to put the LED distance display for the sonar sensors so that you could see it. Your tailgate camera would be so close to the wall that I'm not sure that the camera could read the LED display. Maybe the camera on the back of the cab that looks back over the bed could see the distance display mounted high on the wall - or maybe driving straight in rather than backing in would work? Your rear-view mirror, when looking through the rear window, would reverse the display numbers from left to right (a mirror image).

 

[chriserx]

I also invested in two devices, IIRC, that other forum members suggested in previous posts, both of which are available on Amazon: sonar distance sensors and heavy rubber curb stops. I have a little more room to spare, about 8 to 10 inches, but I try to allow 2 to 3 inches for my rear bumper and tailgate to clear the garage door, and still maintain at least 5 to 6 inches clearance from the front wall. The hardest part is keeping the sonar sensors taped to the front wall without permanently gluing or screwing them in place. I haven't found a painter's tape yet that won't slowly peel off in summer heat and humidity.

https://www.f150lightningforum.com/...sing-smoothly-into-a-garage.21199/post-417542

Try some alien tape, even if it unsticks you can wash it off and restick it. If you don't mind permanence can't go wrong with 3M command? tape. The grey double sided stuff.

 

[Firn]

You can creep forward with 1P drive. It isn't hard and I do it at stop signs and red lights on right turns all the time. More efficient to not have to move your foot to break.

Creep isnt the issue, its fine position. Maybe aligning a trailer is a better example, putting a down tailgate up to a loading dock, etc.

 

[bmwhitetx]

Creep isnt the issue, its fine position. Maybe aligning a trailer is a better example, putting a down tailgate up to a loading dock, etc.

Agree. My son uses 1pd and where he parks at our house he backs as close as he can to a brick wall where I have put up a fiberglass bounce pole.

He typically has his foot on the brake when he is creeping with 1PD and uses the brake to stop exactly.

When I park his car I turn off 1PD and can kiss the bounce pole easily.

 

[tearitupsports]

Not saying it doesn't use regen, but it doesn't ONLY use regen, so can't be as efficient as 1P drive.

After 62k miles I fully believe that 2P is "in practice" more efficient than 1P. Both modes are equally capable, but the precise driving that would be required in 1P, especially at highway speeds, make it harder to achieve max efficiency.
Now I live in Houston, and certainly bumper to bumper traffic and neighborhood driving is a lot more bearable in 1P, but I have found over the years I have just left it in 2P all the time now.
For facts, my overall efficiency of the truck is 2.3 m/kWh which is the Trip 1 that has never been reset. So if you claim that 1P is more efficient, make sure you can provide a better overall efficiency.
Nearly all my stops result in 100% brake score. At this point I know exactly how fast I can stop with the brake pedal using full regen.
As others have mentioned, the main reason I use 2P (besides the ease of achieving good highway efficiency) is the precise parking control. I find it 100x easier to make inch level adjustments in the garage or supermarket spaces using 2P.

The best news is that Ford gave us a multitude of choices all of which can achieve the exact same efficiency outcome and you get to choose which one works best for you.

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