Adaptive automatic transmission

[Drevin]

Yesterday I realized I totally forgot for a long time about the adaptive automatic option. I was using it disabled by default. So I googled a bit for info, and from what I could understand from all the technical lingo, I decided to switch to eco mode, thinking it will help me shift up earlier, before 1500RPM. Not only did I not see this, but now sometimes the engine over revs and feels like it's choking / struggling. Just on my last trip, I was stopped at a traffic light, then accelerated by pressing the controller trigger maybe 2/3's in, and the engine shifted up twice in a row past the green line, with an annoying noise accompanying it.

Now I know that adaptive automatic is useless for keyboard use (because the acceleration is only in 2 extreme states - none or full), but I'm using a controller and I'm generally driving manually and without flooring it through cities, but once I'm out of cities I enable the CC and let it do the work.

So now I'm wondering:

1. There are 4 options for AAT: disabled, eco, power and normal. Power - I'm not interested, eco - no joy so far. Well, what does normal mode do? Better yet, can anyone explain all options here? Maybe I misunderstood something, and maybe other people might learn something new also.

2. I know for a long time that once I enable the CC, and let's say increase it from 30 to 90km/h, it seems to floor it, so is there any use to enable the AAT? Shouldn't there be any option in the game to have me tell the truck's computer, 'hey, I'm now at 30km/h, I'd like to cruise at 90km/h, but I'm in no rush accelerating like a lunatic, just slowly take me from 30 to 90'? Shouldn't the eco mode do that?

Basically, if you imagine I'd be using a real truck, I'd like to keep the engine in good shape as long as possible, without unnecesarily forcing it over the green line, or keeping it at the top of the green line, and I would like to have smooth rides, with low fuel consumption and without having my ears blasted by the engine noise. I don't want to power through the traffic, I want smooth, relaxing rides. Should the AAT allow this, or I'm in no luck? Are my expectations too high? A truck is maybe supposed to be running at 1500RPM, even though I would like to always shift before that, and always cruise at maybe 1300RPM max?

Thank you.

[Hypertext Eye]

Originally posted by Drevin:

1. There are 4 options for AAT: disabled, eco, power and normal. Power - I'm not interested, eco - no joy so far. Well, what does normal mode do? Better yet, can anyone explain all options here? Maybe I misunderstood something, and maybe other people might learn something new also.

This option determines how far you must press the brake before the game downshifts. That's all.

2. I know for a long time that once I enable the CC, and let's say increase it from 30 to 90km/h, it seems to floor it, so is there any use to enable the AAT? Shouldn't there be any option in the game to have me tell the truck's computer, 'hey, I'm now at 30km/h, I'd like to cruise at 90km/h, but I'm in no rush accelerating like a lunatic, just slowly take me from 30 to 90'? Shouldn't the eco mode do that?

Your observation is incorrect. It accelerates as fast as possible without downshifting. If it were truly flooring, then it would downshift.
If you are only using CC to accelerate, and not accelerating manually, then AAT does nothing for you.

Basically, if you imagine I'd be using a real truck, I'd like to keep the engine in good shape as long as possible, without unnecesarily forcing it over the green line, or keeping it at the top of the green line, and I would like to have smooth rides, with low fuel consumption and without having my ears blasted by the engine noise.

Then you should use CC as much as possible or disable AAT. AAT will not help you with that. However if you are trying to pull a heavy load uphill, then you will be thankful that AAT exists.

[Drevin]

Originally posted by Hypertext Eye:

Your observation is incorrect. It accelerates as fast as possible without downshifting. If it were truly flooring, then it would downshift.

I don't understand. Why would a truck downshift when accelerating? If I'm in, let's say A5, and floor it, the truck would move into A4 instead of A6?

[Hypertext Eye]

Originally posted by Drevin:

Originally posted by Hypertext Eye:

Your observation is incorrect. It accelerates as fast as possible without downshifting. If it were truly flooring, then it would downshift.

I don't understand. Why would a truck downshift when accelerating? If I'm in, let's say A5, and floor it, the truck would move into A4 instead of A6?

Just like any internal combustion engine, higher RPM = more power, and more power = faster acceleration. First it would downshift to A4 until close to redline, then it would upshift to A5 until close to redline, rinse and repeat.

[Karlia]

Real world Volvo I-Shift, Economy mode the transmission will run within its own mode and partial power mode depending on how you play the throttle, what economy mode does is holds the gear changes longer and makes bigger steps in skip changing, eg: skip 3 whole gears
Power mode will go through single whole gears , split and some skip changes (good for steep heavy inclines).

The green you are mentioning has nothing to do with babysitting the engine.. that is your best operationg torque zone (hill climbing), at 90kph most road trucks are final drive trained to run at around 1400rpm at 90km/h.

When you "floor" the throttle there is something in the real trucks you do not feel in the sim with peddles or any other controler, there is a kick down switch, now it is in the simulation and its the last little bit of your throttle, thats why if allowed by current rpm your truck will change down and rev her ass off and most of the time hold untill you back off of the switch..

Adaptive learning, the transmission will learn from your throttle a hint inputs. Like kids, you teach your transmission bad habits its going to mimic you..

One thing I would love to see implimented is on the fly in cab switching of those modes as in RW..

Hope I made some sence..

In here I drive purely eco mode with a 540 12 speed I-shift hauling anywhere up to 76tonnes GVM

Happy Trucking
Karli

Ohh and PS:
Cruise control.. dont engage until you get to to your speed, resuming from 30km/ up to 90 is the least economical and healthy way to drive.

[blueshift1980]

Originally posted by Drevin:

Originally posted by Hypertext Eye:

Your observation is incorrect. It accelerates as fast as possible without downshifting. If it were truly flooring, then it would downshift.

I don't understand. Why would a truck downshift when accelerating? If I'm in, let's say A5, and floor it, the truck would move into A4 instead of A6?

Most engines make the most power at higher rpm near redline, and if the engine can't get enough power in fifth at say 1250 rpm, it'll shift down to fourth meaning it'll be at a higher rpm and can get power more quickly.

If the automatic won't shift try setting a key in the keyboard bindings to switch transmission modes which will switch from auto to sequential and vice versa. If you want it to go up a gear, press that key, then press whatever key to have to shift up, and press the key again. If Q is to switch transmission mode and X is to shift up:

4th gear auto > Q > 4th gear manual > X > 5th gear manual > Q > 5th gear auto. Most of the time when I do that it stays in 5th and doesn't go back down to 4th. I use normal mode for the AAT.


And also this:

Originally posted by KMC:

Cruise control.. dont engage until you get to to your speed, resuming from 30km/ up to 90 is the least economical and healthy way to drive.

[Karlia]

Originally posted by blueshift1980:

If the automatic won't shift try setting a key in the keyboard bindings to switch transmission modes which will switch from auto to sequential and vice versa. If you want it to go up a gear, press that key, then press whatever key to have to shift up, and press the key again. If Q is to switch transmission mode and X is to shift up:

4th gear auto > Q > 4th gear manual > X > 5th gear manual > Q > 5th gear auto. Most of the time when I do that it stays in 5th and doesn't go back down to 4th. I use normal mode for the AAT.

lot of work, just keybind hint up and hint down, that way you can with limts manual change in auto..

Would be nice if SCS would combine hint and shift binding to one button as the rl ones are

[Hypertext Eye]

Originally posted by KMC:

lot of work, just keybind hint up and hint down, that way you can with limts manual change in auto..

My experience with this has been, it will shift according to the hint, then very shortly go back to the default behavior. Not so useful.

[Drevin]

Ok, thank you for the replies. I'll try to see how it goes if I manually throttle until I get to 85-90. And I've already set up a button to change from auto to manual ever since that was added into the game. It helped a few times when trying to get out of a Stein Bruch in low gear. Didn't use this on other situations though, but I did just set up 2 butons for the shift up/down hints.

[blueshift1980]

Originally posted by KMC:

Originally posted by blueshift1980:

If the automatic won't shift try setting a key in the keyboard bindings to switch transmission modes which will switch from auto to sequential and vice versa. If you want it to go up a gear, press that key, then press whatever key to have to shift up, and press the key again. If Q is to switch transmission mode and X is to shift up:

4th gear auto > Q > 4th gear manual > X > 5th gear manual > Q > 5th gear auto. Most of the time when I do that it stays in 5th and doesn't go back down to 4th. I use normal mode for the AAT.

lot of work, just keybind hint up and hint down, that way you can with limts manual change in auto..

Would be nice if SCS would combine hint and shift binding to one button as the rl ones are

Originally posted by Hypertext Eye:

Originally posted by KMC:

lot of work, just keybind hint up and hint down, that way you can with limts manual change in auto..

My experience with this has been, it will shift according to the hint, then very shortly go back to the default behavior. Not so useful.

Same for me. Not very useful if it goes right back to the gear it was in. Using my method it almost always stays in the gear you put it in.

I don't think it's a lot of work, there's a grand total of 3 keystrokes. Switch mode, shift up, switch mode.

[Karlia]

Works fine for me it replicates real world quite well, hint down, lift foot a fraction.. stays there until the transmission meets certain parameters then back to normal opperation...
Hey what ever suits your driving style, its your game... Happy Trucking :)

[Micha]

servus everyone (:
i came across this thread and i also see it like Drevin...

and i found a mod that serves theese wishes IF you drive scania truckks.

if you do, check this mod out:

1.35:
https://ets2mods.lt/euro-truck-simulator-2-mods/ets2-sounds/scania-v8-sound-v10-5-opticruise-gear-sound-for-scania-2016-1-35-x/

1.36:
https://ets2mods.lt/euro-truck-simulator-2-mods/ets2-partstuning/scania-new-gen-smarter-opticruise-1-36-x-2/


greetings