I've seen some discussions about it in the comments of other posts but I wanted to gauge what everyone's opinion on one-pedal driving. While I understand the convenience factor, I am personally not a fan due to the efficiency loss from being unable to coast (technically, you can still coast but it takes a lot more effort and is not as intuitive).
This was posted on one of the other threads here -
https://www.roadandtrack.com/car-cu...rily-the-most-efficient-way-of-driving-an-ev/
I'm coming from an Audi e-tron and it functions similarly to the Porsche system mentioned in the article. And it is absolutely amazing for efficiency!
The rule of thumb is that regenerative braking is only about 70-80% efficient. The priority for reducing speed at any time should be coasting > regen braking > physical braking.
And the Audi/Porsche system does just that -
Going down a hill? Lift off the pedal and the system applies just enough regen to maintain speed
Want to slow down on a freeway with no one in front of you? No regen braking, just coast until you reach the speed you want
Someone in front of you? It uses the front radar used for adaptive cruise control to apply regen to get you down to their speed and then turns of regen to continue coasting
The few cases it doesn't cover -
It will never come to a complete stop even if the car in front of you stops - no idea why it is this way considering the ACC system can bring the car to a stop. Shouldn't be a big deal to implement it in software and give users the option they prefer
It has a limit on how hard it can regen brake - if the car in front of you slows down faster than that, you'll have to hit the brakes yourself (which are blended and can apply more regen before having to go to the physical brakes)
It cannot stop at a red light or stop sign if you are in the front - something that can hopefully be solved by software in the future with parts of self driving tech that detects stop signs and red lights.
Now while you can coast on a one-pedal system, it involves meticulously keeping the accelerator pedal right in between that regen and power zone. I've found it to be a lot of effort to do this on the Lucid but well worth the efficiency boost in my not-very-scientific test. I saw an increase from 3.1 mi/kWh to 3.6 mi/kWh on a few loops of my commute. I'll keep at it and report back... hopefully with pictures next time
For reference, my efficiency over ~14000 miles on my e-tron is about 2.3 mi/kWh which puts it around the EPA rated range of the car. And I've never once thought about my air conditioning losses or reducing my speed (usually go 85mph on highways).
I personally would love to see more options for the user in future EVs instead of everyone defaulting to similar one-pedal systems. It's the best part of having a computer on wheels, let the software do what it does best - letting us decide how we want to use it.
What do y'all think? Do you like/dislike one-pedal driving? Have you tried the Audi/Porsche system? Do any other EVs do things differently?
This was posted on one of the other threads here -
https://www.roadandtrack.com/car-cu...rily-the-most-efficient-way-of-driving-an-ev/
I'm coming from an Audi e-tron and it functions similarly to the Porsche system mentioned in the article. And it is absolutely amazing for efficiency!
The rule of thumb is that regenerative braking is only about 70-80% efficient. The priority for reducing speed at any time should be coasting > regen braking > physical braking.
And the Audi/Porsche system does just that -
Going down a hill? Lift off the pedal and the system applies just enough regen to maintain speed
Want to slow down on a freeway with no one in front of you? No regen braking, just coast until you reach the speed you want
Someone in front of you? It uses the front radar used for adaptive cruise control to apply regen to get you down to their speed and then turns of regen to continue coasting
The few cases it doesn't cover -
It will never come to a complete stop even if the car in front of you stops - no idea why it is this way considering the ACC system can bring the car to a stop. Shouldn't be a big deal to implement it in software and give users the option they prefer
It has a limit on how hard it can regen brake - if the car in front of you slows down faster than that, you'll have to hit the brakes yourself (which are blended and can apply more regen before having to go to the physical brakes)
It cannot stop at a red light or stop sign if you are in the front - something that can hopefully be solved by software in the future with parts of self driving tech that detects stop signs and red lights.
Now while you can coast on a one-pedal system, it involves meticulously keeping the accelerator pedal right in between that regen and power zone. I've found it to be a lot of effort to do this on the Lucid but well worth the efficiency boost in my not-very-scientific test. I saw an increase from 3.1 mi/kWh to 3.6 mi/kWh on a few loops of my commute. I'll keep at it and report back... hopefully with pictures next time
For reference, my efficiency over ~14000 miles on my e-tron is about 2.3 mi/kWh which puts it around the EPA rated range of the car. And I've never once thought about my air conditioning losses or reducing my speed (usually go 85mph on highways).
I personally would love to see more options for the user in future EVs instead of everyone defaulting to similar one-pedal systems. It's the best part of having a computer on wheels, let the software do what it does best - letting us decide how we want to use it.
What do y'all think? Do you like/dislike one-pedal driving? Have you tried the Audi/Porsche system? Do any other EVs do things differently?
