[Poll] Are you gonna be a One-Pedal Driver?
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[Poll] Are you gonna be a One-Pedal Driver?
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217 Posts
So.. Lets add a disclaimer that given you want to reduce the speed and compared to friction brakes 🤫that's not how physics works
Of course regen is not a lossless operation, you reduce the speed, you get some energy back and lose some in the process due to drivetrain-battery losses. Coasting is more efficient but sometimes you just need to stop slightly faster…
My thinking is:
D drive sport = low regen
D drive comfort = medium regen
D drive Eco = high + regen
B drive sport = medium regen
B drive comfort = high + regen
B drive Eco = max regen
If you drive in town no matter your selection you will get enough battery capacity to do what you want but on the highway B drive Eco (one pedal) would be the best for a better range.
from what I understand: B is always @ max and D is set once, regardless of the mode
I don't think because sport mode mean faster starts and use brake instead of regen those are bad for the range so drive mode will affect the range because the way you drive will be different
M50 San Remo Green Fiona Red/Black Extended Merino 30000km driven
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346 Posts
How it works in my 530e is pretty much opposite. It has less/no settings to tweak the regen at all.
But in eco pro there is 0 regen by letting off the gas pedal, car goes into free coasting mode detatching the drivetrain from the engine/gearbox(housing the electric engine). When in sport the regen is agressive, engine breaking also plays a part here ofcourse holding gears for longer and not letting the wheels coast freely without the engine/gearbox. Comfort is pretty much soft one pedal drive mode with no coasting and no agressive engine breaking+charging like in sport.
The i4 will ofcourse have way more breaking power in the regen mode, probably even more than the 530e in sportmode.
This is how it looks in the pre LCI 530e, the right dial shows how it looks when you take your foot of the gas in ECO pro, arrow pointing straight up. This image shows a car standing still, but its the same. You then breake to start regen, and im pretty confident you dont trigger normal breakes by regening the first 20/30%, only when you really press harder on the pedal you get the normal breakes kicking in. Also after touching the breake the car will keep regening some without taking you below the speedlimit.
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1,135 Posts
Adaptive regen will be my favorite setting. One pedal in bigger towns maybe.
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75 Posts
Adaptive regeneration seems ideal to me also.
My F31 340i has the foundations of this in its gearbox control, downshifts for engine braking. Also, in eco mode the nav shows when to liftoff to coast to a known slow or stop point.
Secondly, friction brakes will need to be used regularly to keep the disks is good order. I parked next to a Tesla M3 Performance the other day. My big Brembo’s (similar to i4 M50) we’re smooth and shinny. However, the Tesla disks were corroded and grooved. My elderly fathers cars rear disks always go this way form under use. He has had brake judder and had to replace disks.
So, I would opt for a setting that uses a reasonable amount of friction braking at least occasionally.
Spirited fun on short drives with friction braking, full eco potential on long runs when range is a consideration.
There is an issue with the brakes on the M3P that Tesla have now logged with Brembo. Mine has this, even though I regularly give them a damn good thrashing. Lesser models of the Model 3, and all Model S's that I've seen do not have anything like the same levels of corrosion. I'm not particularly bothered as mine is a lease car which gets returned in about 6 months.
Hope that you will get your BMW I4 in time!!!
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75 Posts
Interesting stuff, though not unexpected. Weight transfer makes front brakes more effective than rear brakes. So, the twin motor and especially the front motor harvest should be significant.
Also, likely more powerful regeneration under harder braking. I’m sure somebody posted the range of the M50 fairs better under ‘sporty‘ driving than the e40.
Though, the EPA numbers from America indicate the e40 is a better setup for constant speed driving where regeneration is not an issue. That test cycle seems better suited to a long run.
Do we know what driving mode the tests are conducted in? I assume Comfort… The M50 in RWD only eco pro may narrow this gap as a few of us have discussed with hope...
- EcoPro
- No clim
- B set to Hard recuperation
- Driving style of a Swiss sedated grandma
M50 San Remo Green Fiona Red/Black Extended Merino 30000km driven
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346 Posts
After trying the ix3 with the same intelligent radar/gps controlled regen on a long trip i will for sure not be one pedal driving in B mode.
Most miles in my 530e was done in Eco Pro, and i wont change that with the M50. The ability to remove your foot from the pedals and coast/cruisecontroll+self drive is much more worth to me than not lifting my foot over to the breake pedal to stop the car(if it does not stop by itself, something it does in most cases anyway).
The inteligent regen does a good enough job also. No need to sit with my foot on the accelerator all the time to keep the car moving. Its a strange gimmick imo..
Eco pro individual for 90% of driving it is. Whenever i want to overtake or drive harder sport boost is one click away. 😄
Driving on the motorway i cruise a little bit above the speed limit and mostly overtake at the speed i am cruising at. No need to be accelerating and yoyo driving so Eco Pro does the job there aswell.
Most miles in my 530e was done in Eco Pro, and i wont change that with the M50. The ability to remove your foot from the pedals and coast/cruisecontroll+self drive is much more worth to me than not lifting my foot over to the breake pedal to stop the car(if it does not stop by itself, something it does in most cases anyway).
The inteligent regen does a good enough job also. No need to sit with my foot on the accelerator all the time to keep the car moving. Its a strange gimmick imo..
Eco pro individual for 90% of driving it is. Whenever i want to overtake or drive harder sport boost is one click away. 😄
Driving on the motorway i cruise a little bit above the speed limit and mostly overtake at the speed i am cruising at. No need to be accelerating and yoyo driving so Eco Pro does the job there aswell.
For some new EV owners the fisr time in "B" mode will be annoying, the car will stop too early at the light or stop sign, other time it will be to fast so no choice than to use brake pedal but after many trials in one month you will be a champion and will regenerate your battery in max. More of the EV owners are challending how much they can generate, you could be surprised!
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30 Posts
How to set the type of breaking mode since there are four. I understand how to change from b to d but what about the adaptive one and the other in between?
We've got it by default in our 2021 MY and I really like it, especially when going downhill on a curvy road and you want to reduce your speed. Simply lift your foot off of the "velocity selector" to get the regen braking you need before you hit the curve's apex.
M50, Brooklyn grey, black Vernasca/blue stitching, Visibility, Comfort, Tech Plus Packs, sunroof
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289 Posts
Yep, use it all the time in my i-Pace. Feels very odd going back to a petrol car, lifting off the accelerator and wondering why this huge chunk of metal is still hurtling along, Makes total sense to try and harvest the energy that goes into heating up brake pads.
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