One Pedal Drive Inconsistencies

[DRJJJJJ]

Hello,

I am observing inconsistent behavior with one pedal driving and wondering if it is normal. I keep car on engage mode and I find sometimes the car stops much quicker whens accelerator is released compared to other times when I have to actively engage the brake. I feel like this is speed dependent, and of course the faster you’re going the longer it takes to stop. But seems as if sometimes coast is much longer, as if same slow down rate not being applied. Makes it more difficult to learn. Any insights?

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[generaltso]

Is the battery at a higher state of charge when you get less regen?

 

[Tawna]

I've not noticed this and I always drive in engage and 1 pedal. My brain is programmed to judge distance now for stopping. I rarely use the break pedal.

 

[DRJJJJJ]

Is the battery at a higher state of charge when you get less regen?

I haven’t paid attention to this, I will watch out for it.

 

[DRJJJJJ]

I am trying to train myself and for the most part I got it, then it decides not to stop as quickly and throws me off .

 

[fpasta]

I don't think the same slow down rate is suppose to be the same. You dont coast or engage the mechanical brakes in 1PD. Once you lift its braking.

 

[DRJJJJJ]

Right, and I try only use the accelerator pedal. When I release it stops relatively quickly 80% of time and other times it does not and I have to engage the brake. Trying to figure out why so I can better train myself.

 

[Electrifiedsince2013]

I got my car in July 2022, drove exclusively with 1pd until the first snow/ice (Michigan) which was mid-November. I had a bad experience because when you release the gas, you are breaking…that’s bad on ice. I didn’t go back to it this spring.

however, I recall some inconsistency with 1pd. It was rare, but I agree, I was generally able to gauge the distance to stop, but there were a few times when I seemed to be slowing much less than anticipated and I required the brake pedal. That is one of the reasons I didn’t go back to it following winter this year.

 

[DRJJJJJ]

Good point. Maybe it's by design, but trying to crack the code so I know when to expect it. I do really enjoy one pedal driving and live in the south so winter weather not a concern. Just want to be able to be confident in it.

 

[Vgkfan]

I definitely notice the braking seems inconsisten. I thought possibly related to software updates. I mostly drive in unbridled mode.

 

[summerlinLV]

If you are driving in a slight upgrade or downgrade, it will affect the 1pd breaking.

 

[DRJJJJJ]

If you are driving in a slight upgrade or downgrade, it will affect the 1pd breaking.

I will have to pay more attention to that, but seems to be mostly flat when I notice.

 

[Deleted member 16048]

I will have to pay more attention to that, but seems to be mostly flat when I notice.

And also like others have said. If your battery is at a high SOC. (100% - 95%ish) you'll see a difference. This is because there isn't anywhere for the power to go.

I've only ever noticed a difference when going downhill or up, and at high SOC. All of which is normal behavior.

 

[dono]

I did some testing when I got my job 1 select SR awd in March 2021. I live on a dead end dirt road with a pretty steep grade. In the winter it gets icy as you don't salt dirt roads. I found that 1PD in unbridled was so aggressive it brought in the anti-lock brakes, not good. Running in engage mode was the best on the icy hill it would slow down faster and more consistently than I could with the brakes. Another plus to 1 PD is reaction time it starts to slow down as soon as your off the accelerator. Gives you a 3/4 second advantage maybe all you need to avoid hitting something.

 

[Graction]

Interesting, I occasionally wonder the same thing. I’ve noticed sometimes it doesn’t stop as quickly as I expect, but then I’m not sure if it’s speed or hill related and chalk it up to one of those.

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