TL;DW - Traction Control 1 and Traction Control 2 explanation

Some cars have 2 traction control settings, namely TC1 and TC2. Their functionality and influence in handling is explained in this short 10' video.
I had this kind of video in Italian, but it was missing in English, so here it is again, this time on a Porsche 991.2
You can find all my setups and replays in the following shareable google drive folder:
drive.google.com/open?id=1flJ...
Official Dev Blog subforum with tons of useful information about ACC.
www.assettocorsa.net/forum/in...
Assetto Corsa Competizione on Steam!
store.steampowered.com/app/80...
Intercontinental GT Challenge DLC on Steam!
store.steampowered.com/app/12...

[@marian-gabriel9518]

TC - Specifies how much slipping is allowed. And has hard cut of engine power. (no power, power, no power, power...and so on at the specified slipping threshold). TC2 - Specifies how hard the engine power cut should be at the slipping threshold specified by TC. (some power, some power, some power...and so on, where "some power" amount is specified by the TC2 level). So essentially: TC = slipping threshold + no control over power cut. TC & TC2 = slipping threshold + power cut amount.

[@vatch07075]

Again. Aris does it again. Such a great and needed explanation for so many people. Thank you, Aris!

[@lanequick4321]

I’m the go-to tune guy for my “team” (we’re alright but no one pays us haha). Your videos are absolutely critical to all the tuning success I’ve had in this game. What’s more, you are a solid entertainer and your videos pass the time so quickly. Thank you for everything!

[@johndough247]

So If you're familiar with audio, TC seems basically like an audio compressor: TC1: Threshold TC2: Ratio Thanks for the explanation, Aris! Was never quite sure how they interacted with each other

[@ArisDrives]

Nice! I'm not so good with audio understanding but now that you said it I think I get it. Nice comparison

[@anxiousmindmusic]

I frame everything in audio terms too 😁 - from Aris' description it sounds like the perfect analogy

[@Discostoff2]

After reading this he changed variable names in code :D

[@RogueBeatsARG]

Yeah basically! can imagine a L2A under the hood, you can see how TC1 controls the attack of the traction control

[@antonn8918]

Once again, clear and objective explanations. Thanks Aris.

[@tomeksliwinski7112]

Another Golden tidbit ...everyday i learn more and more, thank you Aries for making us better sim racers! Now, i can play around with TC!

[@doggystube]

Your videos are always amazing Professor 💪👍👍👍

[@Andre-rt9qk]

best (and only relatable) tc1-tc2 explanation. thank you. helped alot

[@ArisDrives]

Great to hear!

[@Yamahaonboardmovies]

Thanks Aris ! Love you and ACC !

[@michelepalermo5739]

Thank you so much my friend!!! Always clear and perfect what you'll explain!!

[@MalyJirka]

You're such a great teacher! Keep up the good work! Thank you!

[@joshbutler6736]

Really helpful! Thank you for a concise, clear, user-friendly explanation!!

[@Decoy629]

Thx for explain TC2, it basicly fine tunes TC1 👍

[@cmacdhon]

Excellent explanation. Thank you Aris.

[@mhN1nja2un366]

Great explanation again (again). Legend.

[@donitsi6095]

Solid advice, specially to keep them close to same level. Thanks

[@kikkotuning]

grazie aris per i tuoi preziosi consigli e le tue spiegazioni tecniche

[@tonysac1]

Thanks(ευχαριστούμε) for this video Aris..I need more explanation videos like this..I have lost in ACC set up and actually I don't change anything there until I'll know what I'm doing 😂

[@Eduardog1975]

Excellent guide to TC1 and TC 2, I love it. I have read that it is not recommended that the difference between TC 1 and TC 2 be more or less 1 to avoid unwanted effects. I understand that you are teaching us and you need to exaggerate the effect. Subscribed!!!

[@objectifsim]

Thank you for this video, very clear and informative

[@Samarelitecsplaye]

Haha aris.drives goes rrrrrr

[@Metalwrath2]

noooo you can't just increase traction control and beat laptimes

[@N3urON6]

Thank you again Aris!

[@Alex_Z95]

Πολύ ωραία επεξήγηση...ευχαριστούμε!

[@MauroEchevarria]

what a great video, I have finally understood it. Thanks!

[@YannickBtz]

Great explanation, thank you!

[@johnhargreaves9714]

Great tutorial, thanks, really helpful.

[@bullzeyes23]

Thank you. Great Video 👍👍

[@stormapex7014]

aris,your videos are so informational and so enjoyable to watch and learn about the cars and physics etc,i do have one suggestion though,when you said listen to the traction control cutting the engine i couldnt hear it properly cause the game volume was too low,please adn thank you.

[@ArisDrives]

Thank you so much, yeah the sound wasn't up to a proper level, I'll be more careful next time, sorry about that.

[@stormapex7014]

@@ArisDrives no need to say sorry,you're the physics master and your videos are all I need.

[@manuelbatterman4232]

Thanks a lot for the info ...👍💪

[@xawerydunikowski3056]

great explanation ;) thx

[@GalakticProtektor]

Thank you friend you help me a lot :)

[@DSK123]

Thank you aris

[@stevenmelling6068]

Thank you sir

[@tahirballikaya213]

Crystal clear

[@froreyfire]

Thanks for the explanation and it's great you have this. However, it should be made obvious in the game itself.

[@seebarry4068]

Ahhhh I understand, thanks.

[@CN-dm8ir]

Thanks, it didient know why there were to traction controls...i do now.

[@ScuderiaFantozzi]

Great explanation Aris. Love all your videos =D Can I use your video as a source for a Portuguese explanation?

[@ArisDrives]

Yes of course!

[@MjkL1337]

knowledge 💪😎👌

[@xUnfx]

Again... how someone would know that without watching this video? Why such information are not implemented in game UI?

[@erpaderpa4469]

Because laziness

[@bmwM3M5M6]

Just found out that engine map 8 is the fastest map for Porsche. I always drove on engine map 1, thought it was the fastest map. I did a 1.33.795 on Oulton Park with engine map 1 so I’m gonna do it again with the fastest map 8, guessing my laptime will be better immediately. 🏁👍

[@jamalalkaabi8]

So? What happened where is the updated lap time :)

[@bmwM3M5M6]

@@jamalalkaabi8 8 months ago my man 😃 ACC has been updated and the laptimes changed and did not drove the Porsche on Oulton Park for a looong time. Driving the Lamborghini Huracan GT3 EVO and Audi R8 GT3 EVO 2. 👍

[@BGR_33]

What is the key assignment description in the controls UI for TC2?

[@Bes1997_]

Buonasera ingegnere, le vorrei fare una domanda un po’ tecnica...sto trovando problemi con la GT-R 2018 a Spa. La macchina sembra avere problemi in inserimento di curva, se freno anche molto leggermente con tamponi a distanza zero dalle sospensioni anteriori,differenza di altezza tra ant. e post. ridotta e bilanciamento freni più spostato sull’anteriore sovrasterza. Ma se rilascio i freni la macchina scorre molto in sottosterzo, anche con un differenziale aperto. Ho il dubbio che sia colpa della sopracitata ridotta altezza. Non sto riuscendo a trovare un compromesso, mi può aiutare? Grazie in anticipo della risposta. Le pressioni delle gomme sono a posto, intorno ai 27 psi e mezzo.

[@simracer1256]

Are you from Italy Ari's? You speak English in a very classy way! If you are from Italy, I love your country. It's crazy, yet friendly and extremely beautiful

[@ArisDrives]

Thank you! No I'm actually Greek. But I live in Italy since 1991, so yeah a lot of years.

[@phill4337]

I love the videos. Please fix the audio, too low

[@Eduardog1975]

Aris, could we say that TC 1 enables traction control to a greater or lesser extent and that TC 2 is the smoothness with which it is applied?

[@carloacquistapace5645]

ARIS, will there be an update for ps4? I have acc for both pc and ps4 but damn the difference is abyssal ,on ps4 it's like playing v01 compared to pc...main problem is that on pc it is at 12 bucks,on console 40...if I only just knew that before...

[@chickey31]

Thanks Aires! People on discord are saying TC is reversed on the Aston Martin. Is this true?

[@dazturner1576]

I race with no traction control its so much more fun and with it off I can slide the car round corners better, I look in the mirrors and my opponents can not do the same and go much wider. The only penalty is its dam tricky coming out of 1st gear corners and I need a better wheel where I can adjust it on the fly for those corners.

[@phill4337]

Does tire grip threshold change if you use the brake while cornering? Or is the threshold still the same, you are just getting closer to the threshold. If this isn't true, when understeering and then you brake, does this actually move the threshold so you grip again because of more weight?

[@ArisDrives]

I didn't exactly understand what you mean, so excuse me if my answer doesn't reply your question. The tyres are extremely dynamic. Their peak slip angle varies depending on the surface, load, temperature, wear, other wear situations (graining, blistering, flatspots), pressure, water presence etc. etc. On top of that the peak and grip varies on the combined conditions of longitudinal and lateral grip. The electronics (ABS and TC) try to understand the correct peak value and keep the tyres sliding close to that. Of course it's not possible to make so for every situation and that's why the race cars have multiple levels for the drive to choose and this is also the reason that in race cars you can still get too much spin under acceleration or a lockup under braking in certain conditions. Street cars usually go for the most pessimistic scenario to keep it safe under every condition.

[@288gto7]

Hello Aris , great video as always. Im wondering why wheelspin happens so easily when at low speeds but then goes away (at the same gear so we still have same wheel torque) as we gain more and more speed

[@ArisDrives]

For many cars the TC is turned automatically off under 50kmh. Some other cars under 30-40kmh. This helps the drivers do a donut if needed, to recover from a spin. Maybe it is this that you are experiencing.

[@288gto7]

In my astra when i manually switch off the tc i can do wheelspin easily when i floor it at low speeds at first gear. But when again in 1st gear i floor it in 50kmh i dont get wheelspin. I found these articles but it seemed weird to me that amount of acceleration decreases as we gain more speed (which is what these links say i think) www.quora.com/Why-do-wheelspin-happens-so-easily-at-low-speeds-and-starts-to-go-away-as-we-gain-more-and-more-speed rothautomotivescience.com/power-or-torque/

[@SHRModding]

288 GTO that’s easy to explain. It’s much easier to push an object when it’s at higher speed than when it’s at low speed. Getting something moving is harder. So when your car is slow, your wheel friction is not enough to translate all your engine force into movement because it’s harder to move the car, hence you wheel spin. If you’re going at higher speed it’s much easier to move the car now and so your wheel friction is enough to transfer all force to the movement of the car so you don’t wheel spin. Try pushing a full shopping trolley when it is still and then try to push it faster when it is already moving. The second one is much easier than the first

[@ArisDrives]

@288 GTO do you have bicycle experience? One with gears? If you have, then you probably know that when you use a "low" gear on your bicycle, you can accelerate fast and spin your legs fast on the pedals but you don't gain much top speed. When you switch to a "high" gear, you accelerate very slow and it's hard to pedal, but if you can you arrive at a much higher top speed. The power you give to your bicycle is the same. It is the power you can generate from your legs. Nothing changes. So the engine is always the same. But your power is transformed to different torque by the multiplying gears. They work like a lever. So either it is easy to spin and accelerate, but low top speed, or hard and slow to accelerate but high top speed. Exactly the same happens in your car. The engine is the same. You engage 1st gear and the power of the engine is multiplied many times by the cogs of the gearbox and much torque arrives at the wheels (so you can spin them), but then the engine can't rev higher and so the top speed for 1st gear is low. Gradually you engage higher gears and the acceleration is slower, but (power permitting) the top speed is higher and higher. Same concept.

[@alessiobaruzzo1679]

TC off under 50? Now I can explain why I always spin the Mercedes exiting the pits...

[@th3orist]

Why is the ECUMap on some cars not 1 when i put the Aggressive Setup on? I thought 1 is always the fastest (and consumes most fuel)? Here on the Porsche it is on 8. Is it not correct to always set it on 1 if you want your car to output the most performance?

[@ArisDrives]

You can find all the cars ECU maps levels in the following official forum post. You'll notice that the Porsche in particular has different numbers for the best performance than most other cars. Link: www.assettocorsa.net/forum/index.php?threads/ecu-maps-implementation.54472/

[@th3orist]

@@ArisDrives thank you good sir

[@damiendutch420]

Would it be wrong to essentualy call it a multiplier?

[@guccibuckethatbrrr]

what is tc3 it is off on the 296 ferarri

[@chogs4761]

i saw someone doing good 1:55 times and even 1:54 times on nurburgring with the aston on endurance 12h. he was using tc1 = 1 and tc2 = 8. what do u think aris? TY

[@kratoz_858]

I think the aston needs to be setup that way. Almost all my aston setup is TC1=1 or 2 and TC2=5-8. The car is very slow in acceleration and i think with that setup, you can accelerate earlier without the overteer. Havent tried it on other cars.

[@polomangr3547]

What happens with tc1 @>1 and tc2@0? When i tried it, it still cuts.

[@ArisDrives]

TC1 is the main traction that controls when to engage. If you put TC2 at 0, then it will just engage TC1 and full cut everytime it thinks tyres are slipping.

[@ohchocobo3642]

So if you put TC2 at 0 it means that even if you put TC1 at max value there will never be any TC ?

[@ArisDrives]

TC2 at 0, just disengages TC2 and let's only TC1 work with full cutting.

[@MrTacoDelPaco]

Hi ya! I have a question. I just got ACC on ps4 but the steering feels very light and it can be quite hard to notice oversteer, understeer, etc. So basically my question is, should it feel so light. I have only ever played games like Project Cars 2 so i dont have experience with such a sophisticated game. Thank you!

[@ArisDrives]

We are aware that some configurations on the consoles, have bugs and issues with the steering wheels (which is so strange, as consoles should be plug&play... but...) The porting dev team is hard at work to resolve those and patches will arrive soon. In the mean time I can tell you that "in theory" your real steering wheel should be set at 900° and in the control options of the game it should also be set at 900° there too. To verify if it works properly your real steering wheel and the virtual steering wheel in the cockpit view should rotate 1:1. So say you rotate your real steering wheel at 90°, the virtual wheel should rotate 90° If that is not happening then something is wrong in your configuration and you should try other solutions to see if you can fix it (until the patch makes it proper instantly). Once you have the above correct, the for G29 put the gain at 100%. A little clip (FFB bar becoming red on kerbs and such) is no big deal, don't worry about it. Also put the minimum force at 10-12%. I don't advice to go higher than 10-20% road effects on the G29 because then the FFB becomes noisy and you lose the actual handling feedback and you get only vibrations from the road. This is how it should work and set ideally, but again i don't have a console here and I hear strange things from people so... at least this is the benchmark you should try to achieve.

[@MrTacoDelPaco]

@@ArisDrives Thank you so much for the help! I think in my case on the g29 it is a matter of a bug as the wheel and the in game wheel are not equal at 900 and I have to chane the rotation depending on each car to make it a 1 to 1 relation. Even with that 1 to 1 relation, the ffb from the g29 seems too light at times which does t allow me to detect the car sliding for example. Outside of thd problems I am loving the game so far and can see you guys are working hard on fixing it so I am sure that in the future everything will be pefect!

[@lombardy3274]

Should launch control in the Aston kick in during slow corners? I am getting awful drive out of slow corners, surely not just TC related?

[@ArisDrives]

Can you give me an indication on which corners and tracks this happens so I can double check? thanks!

[@lombardy3274]

@@ArisDrives Hi Aris, basically any slow speed corners with lots of steering lock there is zero drive on exit. For example, exiting Bus Stop and La Source at Spa, Castrol S and Dunlop Curve at Nurburgring etc. Thanks a lot for getting back!

[@ArisDrives]

@@lombardy3274 is this with automatic clutch and/or gearbox, and/or pad? I'm asking because i never encounter this, so it might have slipped my attention with above settings.

[@lombardy3274]

@@ArisDrives it is with automatic yes but with a wheel and pedals

[@lombardy3274]

@@ArisDrives cheers... my TC settings are 6 & 6 but even with something like 3 & 3 it feels like it takes a while for the engine to pick up out of those corners. Slow speed + even minor steering lock = poor drive.

[@andreasgidske73]

The point is at 4:10

[@RichAbe23]

Do you start ur tuning of the car with traction control off?

[@ArisDrives]

Absolutely not. Those cars are made to be used with ABS and TC, it's part of their engineering. The engine inertia of modern GT3 cars are practically on par with F1 from the 90s, the response is very aggressive and the tyres have very narrow slip angles peak. It makes no sense to try without traction control while for the whole qualifying and race you will always use TC to be faster.

[@RichAbe23]

Aris.Drives thanks

[@Vchan21]

So TC2=smoothness of TC1

[@acmramon]

and the lower the TC is, the faster the car is? TC2 is faster than TC6? ty

[@ArisDrives]

It doesn't work like that. The lower the TC the less intervention you get. Will it be faster? Only you can judge from your driving style, setup, circuit configuration, car, weather conditions, track conditions etc. etc. A green track will probably require higher TC values than a optimum well rubbered track. A wet track will require even higher if not max TC values. Worn tyres will need higher TC values, and so on, and so forth.

[@acmramon]

Aris.Drives yes but normally with a new set of tyres the lower the tc is the faster out of the corners you are, and then the lap times are faster

[@ArisDrives]

@@acmramon again not exactly. As I said above, it depends on your setup and driving style, on the car, on the track conditions. You won't even find many aliens using TC set at level 1 most of the time. On many cars, again depending on various situations, level 2 or 3 might result faster than level 1.

[@acmramon]

Aris.Drives maybe, who knows..😃

[@sithmetal3930]

Aris noticed you let go of wheel on staights do this on console and wheel goes haywire.

[@RichAbe23]

Soften the dampers maybe?

[@ArisDrives]

If it goes heywire you either have your wheel set to 180° or something very low like this, or you unfortunately have got an FFB configuration bug and maybe your FFB is inverted. We are working for an early patch to cure such configuration problems, sorry about this.

[@sithmetal3930]

@@ArisDrives PC game automatically sets the wheel rotation per car will this be fixed in patch for console? thanks, loving the game just cannot wait until bugs are fixed. Need more of your videos for us console users.

[@ErossYT]

how much TC and ABS use real drivers in real cars?

[@ArisDrives]

Usually on those cars they for good dry conditions they stick from level 1 to 4

[@ErossYT]

@@ArisDrives Oh nice, thanks :)

[@silkroadgang7014]

Lo stability control invece lo tieni sempre su off?

[@ArisDrives]

Stability control sempre e assolutamente OFF. Lo stability control su ACC è un aiuto, una magica "mano" che tiene l'auto stabile e poi la frena per perdere velocità. E' per utenti alle prime armi ed è assolutamente sconsigliabile a chiunque guida col volante e vuole imparare a guidare.

[@Sim-903]

how can I control tc2? I can set only tc1

[@ArisDrives]

Not all cars have TC2, out of memory, just Ferrari, Porsche 991.2 and Aston Martin V8

[@Sim-903]

@@ArisDrives I am aware that porsche, ferrari and aston have it only, but in game, I can control only tc1. In the controller key mapping there is no key to assign for TC2

[@ArisDrives]

In english version of the UI: In the control options at the right side with the list of the assignable commands, under "ELECTRONICS" you get: - INCREASE TRACTION CONTROL (this is the TC1, you also get "decrease" assignment) - INCREASE TRACTION CONTROL CUT (this is the TC2, again you also get "decrease") Also if you scroll way down, you also get the possibility to assign TC (TC1) and TCCUT (TC2) to multiposition rotating switches if your steering wheel supports them.

[@Sim-903]

@@ArisDrives Alright ;-) now I set it up. Thanks Aris

[@timmeuris9492]

The nsx has tc2 as well

[@farjam1990]

One car with only "one TC option" disliked the video :|

[@vkalinovcic]

10 min. video for 3 sec. explanation...... 4:00

[@enfantterrible4868]

Ever thought about putting in a real ESP/TC system in a next game? You should check out Beam NG Drive, their ESP behaviour is super realistic

[@rockerbauer]

I wonder, back in 70'/80' drivers raced cars with worse tires, more power, and no TC (and ABS) at all, now these cars with all technology are impossible to drive without TC, makes no sense. I'll not be surprised if some years from now we have a 3 TC control for the electric motor or something like that... maybe one for each wheel, who knows?

[@Kacper_Kolodziejczyk]

You got this completely wrong, first of all 70s and 80s cars were built differently, with a lot of compliance due to softer materials and less understanding of aerodynamics. Tyres were shit but they also had a bit more slip i think, so hence so much sideways driving. They were crazy machines but they were well controllable when you got used to them in most cases. Drivers are just as brave and talented nowadays as they were in the past (or more), especially on average. You put any of the high profile drivers into an old school race car, they'll absolutely push the shit out of it if you let them. As the video explains all tc with and without tc1/2 split work the same, this just gives you a greater level of adjustment with the split. Also a funfact for you, the quickest gt3 drivers sometimes turn tc off entirely for some of their fastest laps in qualifying, but it's a great help during the race to make the car makes it home and to extract more even pace across a stint. As for electric motors, there will be a lot of settings you can set on a motor, a lot more control, more tc levels probably not though.

[@rockerbauer]

​@@Kacper_Kolodziejczyk Thanks for the answer, it seems my opinion is important to you. Although I'll be ok in disagree, hope you do too. Cheers!

[@Matt.R.B]

Cheat code

[@hxrissxn2389]

first lol