One pedal drive (vs) Brake regen

[kkgg]

I don't use one pedal drive. Not got used to that sudden brake feeling.

On regular acceleration and braking,
Almost all the time I get > 90% of braking regen(I see it as a game)

I am thinking I am more efficient then 1pd (as far as regen), because I only break when I need, where as 1pd will start braking immediately to capture energy(which will slow down the car and I need energy to accelerate again)

And we all know the energy captured in regen is way less then the amount of energy we put in to accelerate.

Am right, right ?

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[Ride_the_lightning]

Just drive your car.

 

[dtbaker61]

I don't use one pedal drive. Not got used to that sudden brake feeling.

On regular acceleration and braking,
Almost all the time I get > 90% of braking regen(I see it as a game)

I am thinking I am more efficient then 1pd (as far as regen), because I only break when I need, where as 1pd will start braking immediately to capture energy(which will slow down the car and I need energy to accelerate again)

And we all know the energy captured in regen is way less then the amount of energy we put in to accelerate.

Am right, right ?

regenerative braking occurs whether you use 1-p, or the brake pedal. The amount of 'regen' maxes out at around -100kw from what I've seen; and may be some combination of 'automatic' depending on throttle position, and response to brake pedal pressure and 'mode' (whisper-middle-unbridled)

regenerative braking is 'pretty darn efficient', just losing a few percent due to motor/inverter efficiency. Mechanical braking is 0% efficient since it converts energy to heat that cannot be recaptured.

so.... if you want to be efficient and recapture energy, use 1-p (in any mode), and try not to ever touch the brake pedal

 

[New2EV]

What is the scenario where you aren't breaking in 2PD, but the 1PD person has to?

1PD isn't all or nothing. If I need to slightly slow down for whatever reason, I only slightly back off the pedal.

There is a lot of discussion on this forum on 1PD vs 2PD. I think the conclusions have been that efficiency is similar.

 

[Mach-Lee]

1PD is 100% regen unless you have to touch the brake. If you are getting >90% in 2PD then you're talking about <10% increase in regen miles if you switch to 1PD. Overall it probably won't make a big difference in overall efficiency, more so to personal preference.

 

[BillPitman]

regenerative braking occurs whether you use 1-p, or the brake pedal. The amount of 'regen' maxes out at around -100kw from what I've seen; and may be some combination of 'automatic' depending on throttle position, and response to brake pedal pressure and 'mode' (whisper-middle-unbridled)

regenerative braking is 'pretty darn efficient', just losing a few percent due to motor/inverter efficiency. Mechanical braking is 0% efficient since it converts energy to heat that cannot be recaptured.

so.... if you want to be efficient and recapture energy, use 1-p (in any mode), and try not to ever touch the brake pedal

Some people don’t seem to be able to learn to feather the accelerator pedal……! Bill P

 

[kkgg]

Good feedback, I think I will have to try the 1pd.

 

[mkhuffman]

I recently tried out 1PD over about 200 miles of driving in a day, over freeway and in town, and absolutely love it. What gets me grinning is coming to and stopping at a stop sign without having to touch the brake pedal at all. I do wonder when the brake lights come on, though.

I have gotten really good at timing stops so I take my foot off the go pedal and coast to a complete stop, exactly where I need to stop, without any need to modulate the go pedal or use the brake pedal. And I love sitting at a stoplight with both feet on the floor. It is so much more relaxing than having to keep your foot pressed to the brake pedal.

 

[kkgg]

Good feedback, I think I will have to try the 1pd.

I have other ICE car and just want to make sure I wire my brain correctly.
1PD also auto holds right, because my ICE car won't and I don't want to run into things

 

[Space Ghost GT]

Porsche did all the testing and 2pd is the most efficient way at to operate an EV. Coasting is 100% efficient and regen is definitely not as the battery isn’t capable of taking that sudden impulse. If it was a super capacitor it’s be a different story.

 

[ChuckA]

Good feedback, I think I will have to try the 1pd.

1PD may help the regen slightly but more important is that it will make your brake pads last a lot longer. Maybe we’ll never need a brake job.

 

[Silver Surfer]

I've been using 1pd since day 2 of owning the car but have always wondered is it better to switch it off during highway driving and just let the car coast?

 

[generaltso]

1PD may help the regen slightly but more important is that it will make your brake pads last a lot longer. Maybe we’ll never need a brake job.

Not really. The MME has blended braking, so the brake pedal doesn’t use the brake pads much either unless you slam on it. The bigger issue is your rotors rusting due to lack of use. It’s a good idea to slip it into neutral when braking every once in a while to clean the rust off.

 

[kkgg]

The bigger issue is your rotors rusting due to lack of use. It’s a good idea to slip it into neutral when braking every once in a while to clean the rust off.

I think this will also cause the grabby brakes issue. Good to know

 

[mkhuffman]

I've been using 1pd since day 2 of owning the car but have always wondered is it better to switch it off during highway driving and just let the car coast?

If you want to coast, flip it to neutral. It won't regen or use any energy. Pure coasting and way better than 2PD if coasting is your goal.

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