Cruise Control vs One Pedal Drive?

[InTheHills]

I always use one pedal drive so I am accustomed to the car slowing down when I let off the skinny pedal.

But when cruise control is set, one pedal drive does nothing. With cruise control set, when I let up off the skinny pedal the car seems to coast until it comes back to the cruise control set speed.

Is this normal? Does it makes sense? I feel like one pedal should do the same thing EVERYTIME and that it changing behavior makes it less predictable and almost dangerous. Every other time I let off the accelerator pedal I slow down, except if cruise is set then it does not slow down.

I have had a couple times already where I had cruise set for a school zone or something miles ago, I had completely forgotten it was on but find out in a hurry when I let up off the accelerator expecting the car to slow down and it does NOT!

The other scenario it happens is when Ive been in the town using one pedal for miles, I get on the highway and set cruise, I speed up to pass someone... except when I let off the accelerator pedal the car does not act like it does the rest of the time and it just coasts down to set speed.

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[PharaohHound138]

When you let off of the pedal in one pedal drive the car slows to a stop almost equal to that of braking. I don't think I would want that to happen if I passed a car on the freeway and let go. That to me would be more dangerous. It would seem to be the equivalent of gunning it to pass a car than hitting the brakes suddenly to slow down.

 

[Red Hawk]

Maybe someone else can explain the this better, but my understanding (and experience using the Cruise Control setting) is that Cruise Control is used to maintain whatever speed you set it for. If you set it for 70mph, then even if you accelerate to 80mph, once you let off the skinny pedal, it's gonna go back to 70mph and stay there. If you use the brake pedal, your Cruise Control is usually turned off.

I agree that the One Pedal Drive should not be used on the highway or when going fast! Yipes!

 

[ack154]

Maybe someone else can explain the this better, but my understanding (and experience using the Cruise Control setting) is that Cruise Control is used to maintain whatever speed you set it for. If you set it for 70mph, then even if you accelerate to 80mph, once you let off the skinny pedal, it's gonna go back to 70mph and stay there. If you use the brake pedal, your Cruise Control is usually turned off.

That's all correct, but what OP is describing/questioning is when cruise and 1PD are both on, and maybe you want to make a quick pass, so you accelerate, while cruise is still on (so you go faster than your set cruise speed), when you let off the accelerator after completing the pass, it behaves as if 1PD is not on. It does go back down to the set cruise speed, but it does it while coasting - vs the "braking" of 1PD.

This all feels like normal behavior to me and it's exactly what my car does.

I agree that the One Pedal Drive should not be used on the highway or when going fast! Yipes!

I'm not sure why 1PD on the highway would be that much different than any other car on the highway without cruise. Sure, some will coast a lot more than others but depending on your car/gear/whatever, there may also be engine braking from an ICE car that would also slow you more than you may normally expect.

What I'd be MORE concerned with is OP using cruise control in a school zone. That feels like a place where I would not want my car deciding how fast I'm going.

 

[SonicBlue]

Cruise control keeps the car going at a set speed. So it overrides 1PD, which slows your car to a stop.

You want to set cruise control, then mash the accelerator, then have 1PD quickly bring you back to the cruise control speed? Ok… but that’s just not how it works. Cruise control is designed for highways. Rapidly slowing down on a highway is probably less safe than the current operation.

 

[ack154]

Cruise control keeps the car going at a set speed. So it overrides 1PD, which slows your car to a stop.

This is actually a good point here... if you check your screen when you set the cruise control, the 1PD icon disappears - because it's just plain no longer active while the cruise is also active.

 

[Gungrave223]

I use both Cruise control and 1PD on the highway... there is nothing wrong with it... the main issue is a general lack of understanding...

As other have send... 1PD is for slowing down while maximizing regen braking...cruise control, as the name would indicate, is to "cruise" at a set speed...if you have 1PD enabled... hitting the brake while cruise control is active would disable cruise control will maintaining 1PD... which still works when you see traffic building ahead...

 

[Clockwork]

This all feels like normal behavior to me and it's exactly what my car does.

What I'd be MORE concerned with is OP using cruise control in a school zone. That feels like a place where I would not want my car deciding how fast I'm going.

Indeed. Why would you want it to brake after speeding up to pass someone? I don't do this in ICE vehicles after returning to the other lane, why would I want my EV to do it?

Also excellent catch on the school zone thing.

 

[phil]

Is this normal? Does it makes sense? I feel like one pedal should do the same thing EVERYTIME

Yes, it's normal. Yes, it makes sense. No, it should act differently when cruise control is on - just as any car in the world with cruise control on fails to slow when you release the accelerator at 70 mph.

 

[Kamuelaflyer]

Why would you want it to brake after speeding up to pass someone? I don't do this in ICE vehicles after returning to the other lane

I think people might be using braking in this context a bit generically. They could simply be referring to coasting down to your set speed with or without 1pd. Actual braking though? Yeah tests not good.

 

[devmach-e]

I agree that the One Pedal Drive should not be used on the highway or when going fast! Yipes!

I use one pedal all the time on the highway all the time. It's just a matter of learning to feather the accelerator pedal appropriately.

 

[Stanmckinney]

I use both together all the time with no issues.

 

[RickMachE]

I always use one pedal drive so I am accustomed to the car slowing down when I let off the skinny pedal.

But when cruise control is set, one pedal drive does nothing. With cruise control set, when I let up off the skinny pedal the car seems to coast until it comes back to the cruise control set speed.

Is this normal? Does it makes sense? I feel like one pedal should do the same thing EVERYTIME and that it changing behavior makes it less predictable and almost dangerous. Every other time I let off the accelerator pedal I slow down, except if cruise is set then it does not slow down.

I have had a couple times already where I had cruise set for a school zone or something miles ago, I had completely forgotten it was on but find out in a hurry when I let up off the accelerator expecting the car to slow down and it does NOT!

The other scenario it happens is when Ive been in the town using one pedal for miles, I get on the highway and set cruise, I speed up to pass someone... except when I let off the accelerator pedal the car does not act like it does the rest of the time and it just coasts down to set speed.

Here is your answer, direct from the manual, see the italicized text. There is no one pedal drive when in cruise control.

ONE PEDAL DRIVE LIMITATIONS
One pedal drive is unavailable when any of the following occur:
• Shifting into an incorrect transmission
position, such as park (P) when driving.
• Using active park assist.
• Using cruise control.
Releasing the accelerator pedal may not bring your vehicle to a complete stop at high speeds and steep grades.

A great example of why people should read their manuals.

 

[InTheHills]

Here is your answer, direct from the manual, see the italicized text. There is no one pedal drive when in cruise control.

ONE PEDAL DRIVE LIMITATIONS
One pedal drive is unavailable when any of the following occur:
• Shifting into an incorrect transmission
position, such as park (P) when driving.
• Using active park assist.
• Using cruise control.
Releasing the accelerator pedal may not bring your vehicle to a complete stop at high speeds and steep grades.

A great example of why people should read their manuals.

Thank you for the information that answered one of the questions. I still do not think this strategy makes sense.

I would much prefer that A leads to B every time.

 

[InTheHills]

Maybe someone else can explain the this better, but my understanding (and experience using the Cruise Control setting) is that Cruise Control is used to maintain whatever speed you set it for. If you set it for 70mph, then even if you accelerate to 80mph, once you let off the skinny pedal, it's gonna go back to 70mph and stay there. If you use the brake pedal, your Cruise Control is usually turned off.

I agree that the One Pedal Drive should not be used on the highway or when going fast! Yipes!

Do you disable one pedal drive every time you go over 60 or something? I use it 100% of the time.

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