Regenerative Braking Setting

[Tooney]

@annieland Once you fully understand Taycan regenerative braking. friction braking, & overdrive recuperation, then it will be time to move up to the many posts about reading Taycan tire pressure screen and setting correct tire pressure.
Tire pressure after buying
Tire pressure question

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[magnitude]

@annieland Once you fully understand Taycan regenerative braking. friction braking, & overdrive recuperation, then it will be time to move up to the many posts about reading Taycan tire pressure screen and setting correct tire pressure.
Tire pressure after buying
Tire pressure question

It's well known (although somewhat disputed), that Planck tried to discourage Einstein from working on General Relativity. "Therein lies madness", essentially.

That's all I'm going to say about figuring out the correct tire pressure.

 

[magnitude]

Do you, like, not drive the car? You've had it for a while now, and 500 miles is more like "running out for groceries". (Why do you hate your Taycan?) ?

But isn't 500 miles also below or at least close to the threshold where recuperative braking actually starts to engage in a new car?

 

[WasserGKuehlt]

But isn't 500 miles also below or at least close to the threshold where recuperative braking actually starts to engage in a new car?

It is, and I did mention that, was just giving @annieland some grief for not driving more ?.

 

[tchavei]

Speaking of, I wonder how much is behavioural (x number of braking procedures, x amount of time and / or x amount of times over y deceleration) versus number of km for regen to kick in.

Until yesterday I was convinced, based on reports on the forum, that it was behavioural. Now I'm not so sure anymore. Mine activated the moment my odometer changed from 599 to 600km. Too perfect and round to be just a coincidence...

 

[annieland]

Do you, like, not drive the car? You've had it for a while now, and 500 miles is more like "running out for groceries". (Why do you hate your Taycan?) ?



Lemme try:
- (preamble) The car has 2 mechanisms for slowing down - hydraulic brakes (friction pad on disc), and "motor" braking (regenerative), whereby the electric motors "resist" the spinning/rotation of the axles, and convert that into electric energy. Sometimes these 2 mechanisms work together, in other cases they are actuated individually.
- brake pedal braking: this is just you, and only you, no settings/knobs/controls. (Kinda, getting there.) This mode of braking combines the 2 mechanisms, according largely to the following algorithm:

* below ~600mi, pedal braking is only friction/hydraulic; (the remainder applies after this point​

* upon starting the car, the first 3-4 actuations (might depend on time or distance spent braking) of the pedal produce hydraulic braking only​

* in general, at speeds over 6-7mph, pedal braking is regenerative braking - and much stronger. This is indicated by the green arc in the center dial. Continuing to brake below 6mph transitions to hydraulic braking, sometimes with a noticeable reduction in pedal feel and/or rate of deceleration. (Watch out for this in stop-n-go traffic.)​

- recuperation: this is another way of slowing down the car. It's actuated from a button on the left arm of the steering wheel, and has 3 stages: off (default), on (first/short press), auto (long press)

* in off mode, lifting off the electron pedal means the car will coast (it actually feeds just a tiny bit of current to the motors). Slowing down requires explicit braking.​

* in on mode, lifting off means the regenerative braking is triggered to a small, fixed amount: the car recoups some of the energy, insufficient for stopping except on an incline at slow speed. This is more of an "ICE/engine braking" feeling, useful to modulate speed in moving traffic.​

* in auto mode, lifting off means the car uses its cameras to figure what's the optimal response: if no obstacles are detected, it will coast (like in the off mode); otherwise it will increase the rate of deceleration as needed - beyond the 'on' mode but not sufficiently to stop safely. This is useful in high speed traffic that may encounter a rare slowdown (say, around exits/merging points).​

InnoDrive/assisted driving will obviously override the above. There's also the 'basic assist' which may slam on the (hydraulic) brakes if the car detects what it perceives to be an imminent collision.

(Homework: add 500 miles by EoW.)

Edit: my hand-crafted indentation of bullet points is crap.

Ok, needed some time to read that 5 times, take an unscheduled joyride until sunset, and read it some more. ?

For the most part, I grasp the energy exchange aspect, which I started to learn about when I was merely dreaming about the car. It's the real world use, combined with my kinda weird brain, that is struggling. But that's probably a good thing, as I know it'll feel more intuitive as I build road experience. I'm trying to follow the best use case scenarios you've all volunteered, which is really helpful, and I get how everyone's style is also different.

It took the first few days of driving to realize in off mode the car was still moving at a clip when I wasn't on the pedal, so voilá - coasting. But my problem is I get panicky that I'm not going to be able to tell when the car starts decelerating and I obsess over the speedometer which is distracting.

Having it always on hasn't felt comfortable to me yet so I've rarely done it. But then again, I have plenty more miles to drive before things really start calibrating. I've experimented most with Auto, but perhaps not in the best conditions. I'm seriously reading your descriptions of each mode over and over and am going to re-write them into notes for myself, so thank you so much.

As much as I'm someone who is a "need to know" type and will play with spreadsheet formulas in my spare time, I also love the idea of algorithms magically figuring things out for me. I'm loving Innodrive right now, since I've taken a hiatus from driving like a maniac. It's fun to be like, oooh what is the car going to do next! I can't wait for the surprise! Heh and this car sure has surprises... like, why is the air conditioning on again??

 

[annieland]

@annieland Once you fully understand Taycan regenerative braking. friction braking, & overdrive recuperation, then it will be time to move up to the many posts about reading Taycan tire pressure screen and setting correct tire pressure.
Tire pressure after buying
Tire pressure question

Oh geez, all I know about tire pressure is my husband's "It's going to decrease when it's cold out" refrain where I now mouth the words with him after I tell him my tires need air. And then I say, "Well if it's this low in the dead of winter for a week THEY NEED MORE AIR." It's this stupid argument every year as if I don't understand cold temperatures. Of course, I could learn how to put air in my tires myself... I've never done it. I'm terrified I'll make them explode. But for now, I'm keeping tire pressure off my radar until some light goes on, so thanks for the warning .

 

[annieland]

It is, and I did mention that, was just giving @annieland some grief for not driving more ?.

Hey don't I get any brownie points for doing that Porsche Rally thing?? Come on! We didn't even come in last!

 

[f1eng]

Ok, needed some time to read that 5 times, take an unscheduled joyride until sunset, and read it some more. ?

For the most part, I grasp the energy exchange aspect, which I started to learn about when I was merely dreaming about the car. It's the real world use, combined with my kinda weird brain, that is struggling. But that's probably a good thing, as I know it'll feel more intuitive as I build road experience. I'm trying to follow the best use case scenarios you've all volunteered, which is really helpful, and I get how everyone's style is also different.

It took the first few days of driving to realize in off mode the car was still moving at a clip when I wasn't on the pedal, so voilá - coasting. But my problem is I get panicky that I'm not going to be able to tell when the car starts decelerating and I obsess over the speedometer which is distracting.

Having it always on hasn't felt comfortable to me yet so I've rarely done it. But then again, I have plenty more miles to drive before things really start calibrating. I've experimented most with Auto, but perhaps not in the best conditions. I'm seriously reading your descriptions of each mode over and over and am going to re-write them into notes for myself, so thank you so much.

As much as I'm someone who is a "need to know" type and will play with spreadsheet formulas in my spare time, I also love the idea of algorithms magically figuring things out for me. I'm loving Innodrive right now, since I've taken a hiatus from driving like a maniac. It's fun to be like, oooh what is the car going to do next! I can't wait for the surprise! Heh and this car sure has surprises... like, why is the air conditioning on again??

I understand how the options work and now just leave it in (the most efficient) default coasting. The first step lift off regen is reassuringly like lifting off in a conventional car but I don’t need reassuring any more, the second step auto is stressful because it takes control from me and I don’t know what it will do next, a bit like sitting next to a novice driver and trying not to worry if they will do something daft. I feel the same way about adaptive cruise (so was delighted it wasn’t standard so I could avoid it) and haven’t tried anything like Innodrive - that sounds like heart attack territory for me!

I love the chassis technology in my car, stability control, active ARB, torque vectoring and rear wheel steer but I want it to be only me deciding when to steer accelerate and brake - that auto driver stuff isn’t for me - so default regen works is simple and predictable .?

 

[magnitude]

because it takes control from me and I don’t know what it will do next, a bit like sitting next to a novice driver and trying not to worry if they will do something daft.

I really think you are overthinking this. They don’t take control away from you just as little as the actual environment you’re driving in takes control away from you. You need to adapt to wind and inclines anyway, this is no different. When you drive up a hill and want to slow down, you don’t push the brake, you let off the accelerator, and think to yourself: “This was nice, less hassle!”

In fact, auto recup is exactly that: Hills. They’re just very friendly hills, that only happen to appear when there is also a car in front of you. And so when I’m coasting along on the highway, and a car appears in front of me, I’m now on a hill and don’t need to switch to the brake for just a minuscule slowdown in order to match the other car’s speed. “Thank you, hill!”

Just like the less friendly hills that exist along the highway whether you want them to or not, you’re automatically adjusting yourself to them, and there’s no surprise.

 

[tchavei]

I really think you are overthinking this. They don’t take control away from you just as much as the actual environment you’re driving in takes control away from you. You need to adapt to wind and inclines anyway, this is no different. When you drive up a hill and want to slow down, you don’t push the brake, you let off the accelerator, and think to yourself: “This was nice, less hassle!”

In fact, auto recup is exactly that: Hills. They’re just very friendly hills, that only happen to appear when there is also a car in front of you. And so when I’m coasting along on the highway, and a car appears in front of me, I’m now on a hill and don’t need to switch to the brake for just a minuscule slowdown in order to match the other car’s speed. “Thank you, hill!”

Just like the less friendly hills that exist along the highway whether you want them to or not, you’re automatically adjusting yourself to them, and there’s no surprise.

It does make me lazy. Don't have to actively tap the brake pedal, just let it do its thing as long as I always know it won't stop by itself. It does add some relaxation to the drive

 

[thebuttonmonkey]

I use auto-recuperation, which is long press of the button (it will show an A in the icon). Then it’s basically off (coasting) except when there’s a car in front of you. Best of both worlds. @Wakesurfer maybe try that to see if you like it?

It solves the problem of only wanting it in traffic for me.

Ah is that what auto does. Good to know, thank you.

 

[annieland]

There's also the 'basic assist' which may slam on the (hydraulic) brakes if the car detects what it perceives to be an imminent collision.

I think this is what jolted me recently when I guess I had regen in auto and was doing the typical drive to school pick-up with a light at every intersection. I didn’t expect the car to suddenly slow down and even though it wasn’t a slam, it made me think I was driving carelessly and was about to hit the person at the next light. But now I realize it’s an intended behavior. Funky!

Ok, off to drive a 70 mile or so round trip to Cabela’s for some sporting goods… I’ll bring my notes and have some more adventures in driving configuration!

 

[TDinDC]

Ah is that what auto does. Good to know, thank you.

That is good to know. Too bad Porsche cannot write better manuals.

Mr. “thebuttonmonkey”, the manner in which I initially misread your user name made me question my sanity and morality. ?

 

[MarMiamiBeach]

I generally do not turn it on - mainly from info that I have garnered from the Forum - coasting is optimal for battery conservation. BUT.................I do use the button on the steering wheel to turn regen on and off when I am in traffic. I find that I am constantly on and off the brakes in traffic and using the regen button provides enough 'braking' to flow with traffic and not be on and off the brakes constantly.

I did not even know that i can control it at the steering wheel. I think it makes a big difference if on or off. If it is "on" it slows down a lot and in off position it keeps rolling.... .. i think it makes a big difference. I would like to change this in the personal settings that I do not need to press the steering wheel bottom anymore.

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