Conditional 1-pedal driving

[dj_stang]

USING AUTO HOLD

1. Bring your vehicle to a complete stop. The auto hold active indicator illuminates in the information display.

1. Release the brake pedal. The system holds your vehicle at a standstill. The auto hold active indicator remains illuminated in the information display.

1. Apply the accelerator and drive off in a normal manner. The system releases the brakes and the auto hold active indicator switches off.

Note: The system only activates if you apply enough brake pressure on the brake pedal to bring the vehicle to a standstill.
Note: Under certain conditions, the system could apply the electric parking brake. The brake system warning lamp illuminates. The electric parking brake releases when you press the accelerator pedal. See Automatically Releasing the Electric Parking Brake.
Note: Auto hold cancels if you shift into reverse (R), or neutral (N), and press the brake pedal.
There could be actions that can cause the auto hold system not to work when the following occur:

• When you use active park assist.
• The driver door is open.
• You shift into reverse (R), or neutral (N) before the system is active.
• Your vehicle is in temporary neutral mode.

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I don’t understand the point exactly. This is kind of a side track anyway but all I’m saying is that you shouldn’t be confused at the misleading toggle about auto hold. Because in 1PD even if you turn the toggle OFF, auto hold behavior is still active.

What that means is the brakes physically come on when you come to a stop which causes a jerk motion when you let off. I can only speak to the GTPE which has Brembos, perhaps it’s less jarring on the others.

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[azerik]

Ever try hanging a tennis ball from the ceiling to stop on your windshield. You pull in, bump, stop. I set this up for my mom, they have a big garage. She is just a terrible driver

Yeah that was before I had a 360 camera

 

[dimaj]

I take it you never learned to drive a MT.

MT == Manual Transmission?
I did. Miss it immensely That was the most fun I had in the car!

I'm still considering getting a used Mazda Miata, but they're so damn expensive!

 

[dimaj]

Yeah that was before I had a 360 camera

I actually kinda hate how much we start to depend on all this technology.

When we were shopping for a new car, it boiled down for us to 2 candidates:
* Mach-E
* Model Y

The biggest turn offs for us for Model Y (other than every second car on the road is a Tesla) were really bad visibility out of the rear window and thus having to rely on cameras to perform the most basic of tasks. Essentially, if cameras in the car fail, the likelihood of getting into an accident while backing up increase exponentially.

I might be way off here, but that's just my personal opinion and it landed me in this awesome car!

 

[Auto Motive]

Hi All!

I am wondering if it is at all possible to have 1-pedal driving automatically set to off when trying to park/backup... Today I was trying to get into a tight space and it was very inconvenient to move around.. With 1-pedal driving, if i'm driving around 1mph, car would just stop and auto-hold. Very convenient when on a traffic light, not at all convenient, when I need to move a few inches forward or backwards

Basically, in order for me to disable it, I had to go back into D, go to settings and then disable it.

is there some setting that exists for it? Or maybe some sort of a shortcut?

Thanks!

Practice in a parking lot with one pedal on. Soon afterwards you'll have enough confidence and skill to achieve the perfect balance.

 

[Auto Motive]

I actually kinda hate how much we start to depend on all this technology.

When we were shopping for a new car, it boiled down for us to 2 candidates:
* Mach-E
* Model Y

The biggest turn offs for us for Model Y (other than every second car on the road is a Tesla) were really bad visibility out of the rear window and thus having to rely on cameras to perform the most basic of tasks. Essentially, if cameras in the car fail, the likelihood of getting into an accident while backing up increase exponentially.

I might be way off here, but that's just my personal opinion and it landed me in this awesome car!

I love the cameras in the model y for total visibility in driving and in parking lots. At 75 very concerned for safety and this feature has been awesome. We drive with cameras on for full left side and rear view on highway. Even when using nav when you turn on signals camera view is dispalyed. Never a blind spot and so far cameras work everytime. This is the future of safe driving in my opinion. Even when parking the front sensor displays how many inches you are from front object.

 

[OH2AZ2OH]

1) You don't have to use 1PD
2) there's no efficiency gain by using 1PD
3) In fact, Porsche initially delivered the Taycan configured to drive similar to Whisper without 1PD because their testing showed that coasting when lifting the throttle was the most efficient, with no option to change it. I'm not sure if they still do.

I'm firmly in Team Coast. Whisper with 1PD off is a sublime driving experience. For reference, I've spent the last 30+ years driving in 2PD, and over 20 of those were 3PD. Every manual car I've driven has a pretty linear throttle map, which I appreciate. Why would I want 75% throttle in 25% of pedal travel (looking at you, Unbridle).

The situation you describe is one of the reasons I turned of 1PD after a few months. To me, it's an EV party trick. I don't spend much time in stop and go traffic; maybe I'd think otherwise if I did. Even the times I was in stop and go, I still had to use the brake pedal or was hovering over the brake pedal enough of the time that the downsides outweighed the upsides.

 

[DevSecOps]

1) You don't have to use 1PD
2) there's no efficiency gain by using 1PD
3) In fact, Porsche initially delivered the Taycan configured to drive similar to Whisper without 1PD because their testing showed that coasting when lifting the throttle was the most efficient, with no option to change it. I'm not sure if they still do.

I'm firmly in Team Coast. Whisper with 1PD off is a sublime driving experience. For reference, I've spent the last 30+ years driving in 2PD, and over 20 of those were 3PD. Every manual car I've driven has a pretty linear throttle map, which I appreciate. Why would I want 75% throttle in 25% of pedal travel (looking at you, Unbridle).

The situation you describe is one of the reasons I turned of 1PD after a few months. To me, it's an EV party trick. I don't spend much time in stop and go traffic; maybe I'd think otherwise if I did. Even the times I was in stop and go, I still had to use the brake pedal or was hovering over the brake pedal enough of the time that the downsides outweighed the upsides.

What you're describing is your inability or unwillingness to accept change.

Porsche's rationale behind that has been widely discussed and it was conceptualized based on Autobahn travel and isn't at all practical. In fact Hyundai has said that regenerative braking can improve range by up to 40% based on typical driving in the USA.

The thought behind coasting is "an object in motion..." and therefore people assume it to be beneficial at freeway speeds. But ask yourself, when do you need to brake? Off ramps, going downhill, traffic etc. What good reason would there be to keep the object (vehicle) in motion during those events... well none unless you want to crash or get a speeding ticket. So you have two choices, use hydraulic braking or regenerative. One causes wear and tear on the vehicle while the other adds range, generates electricity and has the same outcome. The one exception is in snow, which is why vehicles are releasing snow modes.

Your complaint about throttle mapping is also baked into the inability to adjust to change. Throttle mapping is by wire now. We aren't driving 1970s hot rods with mechanical linkages. Not having 6" of higher resistance foot travel is more comfortable and more accurate.

Drive however you want for now. 2PD in EVs will come to an end one day and isn't an option in Tesla or Rivian anymore. Feathering an accelerator isn't hard.

 

[azerik]

. It literally started rolling backward on a slight grade. That was a WTF? moment.

That is the light pedal. Just a hair of pressure on the ‘gas’ and it unlocks auto hold. This was either adjusted or introduced recently as it’s also been the reason I’ve almost rolled into the car infront of me (but the pre collision would have stopped it) or rolled partly into a crosswalk. I personally like it but have now started to re-develop the Lexus right leg shin splint from being tense about keeping my foot lifted. In my Lexus it’s a hair trigger to the brake pedal as I don’t fully trust its radar cruise. (Not a debate topic but just something about that suv specifically)

 

[theganyo]

The biggest reason I haven’t adopted 1 pedal is because of backing in: With 2 pedal on, the car rolls and I only need the brake to control speed and stop. With 1 pedal on, the car mostly only rolls when pressing the accelerator, but stopping isn’t as precise as the car will roll to a stop when the pedal is lifted. I prefer precise control.

 

[Mach-Lee]

The biggest reason I haven’t adopted 1 pedal is because of backing in: With 2 pedal on, the car rolls and I only need the brake to control speed and stop. With 1 pedal on, the car mostly only rolls when pressing the accelerator, but stopping isn’t as precise as the car will roll to a stop when the pedal is lifted. I prefer precise control.

Slow down more at the end if it keeps rolling. I use 1PD to park with inch precision every day. You can easily hold a speed of only several inches per second with 1PD.

 

[dimaj]

I love the cameras in the model y for total visibility in driving and in parking lots. At 75 very concerned for safety and this feature has been awesome. We drive with cameras on for full left side and rear view on highway. Even when using nav when you turn on signals camera view is dispalyed. Never a blind spot and so far cameras work everytime. This is the future of safe driving in my opinion. Even when parking the front sensor displays how many inches you are from front object.

That is precisely my point. should those cameras fail for whatever reason, you'll be lost and completely inhibited. While that technology is amazing and really aids us with our daily routines, it also atrophies our muscle memory to do certain things.
For example, before I had any rear-view cameras on my cars, I would back into a parking lot between 2 cars with confidence at full speed - never had an issue. After driving with backup camera for 10 years, I am fully dependent on it. A while back, I turned off the camera when I was backing into a parking spot, it took me almost a minute to get in there.

 

[OH2AZ2OH]

The thought behind coasting is "an object in motion..." and therefore people assume it to be beneficial at freeway speeds. But ask yourself, when do you need to brake? Off ramps, going downhill, traffic etc. What good reason would there be to keep the object (vehicle) in motion during those events... well none unless you want to crash or get a speeding ticket. So you have two choices, use hydraulic braking or regenerative. One causes wear and tear on the vehicle while the other adds range, generates electricity and has the same outcome. The one exception is in snow, which is why vehicles are releasing snow modes.

IF using the brake pedal meant using the friction brakes, then I would wholeheartedly agree with you. That is how Teslas work, but that' s not how the MME works.
The MME uses blended braking. The car decides when to use regen and when to use friction, not the driver pressing the brake pedal.*

Therefore, there is no difference in efficiency or wear and tear.

*Unless you switch into neutral first. Since the motors are disconnected from the axles, all braking is friction braking in neutral. This is how I clean the rust off my rotors after a wash or rain. Otherwise, no matter what drive mode I'm in, there isn't enough friction braking to remove the rust.

 

[theganyo]

Slow down more at the end if it keeps rolling. I use 1PD to park with inch precision every day. You can easily hold a speed of only several inches per second with 1PD.

Sure, I could adjust my driving to its stop curve like that, but I have no compelling reason. As noted elsewhere here, 1 pedal is a preference, not a direct benefit, and I didn’t find it all that compelling - especially because I’m almost always using speed control.

 

[DevSecOps]

IF using the brake pedal meant using the friction brakes, then I would wholeheartedly agree with you. That is how Teslas work, but that' s not how the MME works.
The MME uses blended braking. The car decides when to use regen and when to use friction, not the driver pressing the brake pedal.*

Therefore, there is no difference in efficiency or wear and tear.

*Unless you switch into neutral first. Since the motors are disconnected from the axles, all braking is friction braking in neutral. This is how I clean the rust off my rotors after a wash or rain. Otherwise, no matter what drive mode I'm in, there isn't enough friction braking to remove the rust.

Yes I'm well aware that it's blended, but with manual braking in the MME you don't know when you're engaging the hydraulic brakes. Therefore you are likely using hydraulic brakes on occasion and increasing wear and tear.

Tesla does have blended braking but in a different sense since there is no ability to disable regen. Removing your foot from the pedal initiates full regen. Pressing the brake adds hydraulic on top of regen braking. Tesla actually does show you the percentage of regen vs hydraulic. The green bar to the left of center is regen while grey to the left of green is hydraulic.

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