Official General AI Comments & Discussion Topic

From what i have seen, its because they only have 1 race line, so they all stick to the middle of the track when not overtaking.

That also what i have seen on turn 1 at Daytona - They all want to go into 1 single race line while there is plenty of space to go 2 wide

 

This has been my experience too. T1 AI cut and hit same wall. Bus stop cant trust cars in front as always spinning, and if they follow too close the will check up on corner exit and and get a tank slapper.

 

Issues with some Nurburgring layouts:
On the layouts Nurburgring Gp and the Nordschleife for itself, I have very very little problems racing against the AIs even on high skill levels. But there are alarming issues I encounter with both the Nordschleife 24H and the GP Veedol. Havent yet tried every single one of them in case you wonder. I usually race at skill level 103 or at times 105 just for leisure. But on the Nurburgring 24H layout, the AIs feel way more aggressive, faster and rougher to race against than on the version with only the Nordschleife. There also are those instances where the AIs can do magical late braking and take corners at higher speeds than the player no matter what you do but overall its possible to match them just by a slightest. Then there is the worser issue. On the Veedol GP layout, I was not able to match the AIs in qualifying with two different car classes. Was only able to match below the midfield no matter what I do. Then during the race, I also can't even match the AI pace at all. Compare that to the fact, I was able to match the AIs on the standard GP layout even on higher difficulty, qualifying on pole without issues and winning each race despite spinning out atleast once with atleast a ten second lead.

To sum it up, these two layouts are feeling like the AIs are 20-30 % more difficult than the version where I have no issues at with the exact same set

 

Ah, I thought I was terrible at driving on this track, but knowing this, I’m only half as bad.

 

After the latest patch, the AI in multi-class races has become much better. But the problem of cars sticking and magnetizing to each other still exists.

 

To me, there is one major thing left with AI's behaviour:
They obviously do not see very far, just where the next car is.
It is noticeable when driving within a pack of AI, which happens during first laps when starting from the middle or back of the field.
Then, the AI in front loves to give you some kind of braketest before narrow curves. I can live with that and try to be careful and want to avoid an accident, as I see that there are a many cars in the corner in front.
BUT: The AI driving behind me obviously just sees me and not the traffic in front and tries to force it's way through there is no space, though. With this behaviour, they often force me off track by going for my rear tyres or crash themselves, when there is a barrier in the chicane.

 

Anyone knows if customizing AI can fix pitting problems for endurance races?
Has anyone tried to figure that out?

 

I think it would be awesome if custom AI parameters for small mistakes and fatal mistakes could be separated to give us more control on how the AI behaves

 

Right now, it is only me who does the fatal mistakes...

 

Can you elaborate?

 

Unfortunately, I find the only way to get the ai to use their entire tank of fuel, at least using authentic fuel, is to turn off tire wear. With it on, the AI consistently pit for tires with half a tank or so left. And if you’re using your AI co driver, tire wear is not reset when doing the driver swap even if you change tires.

 

There is no issue with the AI's pit strategy. They simply calculate the optimal strategy and apply it. This applies to both tires and fuel. In certain time settings, they run stints using almost the entire fuel load. So, it largely depends on how you set the race duration.

 

If this is true, please give me your opinion for a good time setting

 

this is not correct information. AI's strategy is broken. for example, if the race takes 6 hours, then the opponent’s AI will end up having 3-4 more pit stops

 

I assume this tests were done in 1.6.3.5? This was updated yesterday, it should help mitigate the issue:

• Adjusted AI pitstop estimate losses & tire wear thresholds for all Endurance classes & F-USA oval variants so AI drivers in those classes are generaly less likely to find pitstops worthwhile until it is running low on fuel
• Reduced amount of extra fuel AI will carry as a safety margin in qualifying & last stint of races
• Reduced fuel safety margin threshold under which AI will pit for fuel in races

 

I know the discussion is still going on but, ITS FIXED as far as I'm concerned

@Mazdaspeed and everyone else. did a x2 fuel and x3 tire race at LeMans with FCY enabled - a combo that definitely would have broken the AI before, and this time, SMOOTH SAILING. Everything working as intended.

The AI pitted when they needed fuel, not when their tires were a little worn as they would have before. Nobody ran out of fuel, and when the FCY came out, everyone pitted as expected and again, no one ran out of fuel which would throw out more FCYs, which would break other AI to run out of fuel again.

In the end it was a wonderful, immersive experience. Thank you Reiza, thank you @Renato Simioni - as I've said, you guys are making all my sim racing dreams come true.

 

Here's a few images of the race to celebrate

 

After the last patch, ai began to work perfectly with the strategy. Great job.

 

Couldn't get the chance to play for a few weeks, how's the racecraft after the latest updates?

 

Hello!

The last few weeks, I've been experimenting every evening with F-USA Gen. 2 at Indianapolis. My goal is to drive a full 200 laps race versus computer opponents that are comparably fast in relation to me.

My problem is that I cannot get the AI to be competitive. I've learned that I have to lower my turbo charger to something between 40 and 50% in order to finish a 500 miles race (I've finished with a setting of 40% without turbo damage, 50% should be theoretically too much basing on the tests and extrapolations I made).

So yesterday I set the AI to a level of 105%, because at that speed, I could observe comparable quali and mid-race laptimes of the AI. My laptimes are as fast as the top drivers, but only if I can drive freely (and once my tank gets empty, which doesn't seem to affect the AI at all, they are fast from the start on). Once I get into traffic, I am a lot slower. The reason is not me being unable to overtake, but the fact that the AI is terribly slow in the corners and the street not wide enough or suitable for overtaking in the corners except some very rare occations. (Especially the AI is slow on exit of turn 4, that's sheer horrorshow! It breaks when leaving the corner...)

On the straights again they are way too fast. I set my wings front and back to the lowest values available, closed the radiator to 30%, which is the lowest to keep the engine still alive, but still I cannot keep up with the AI on the straights. Even if I get a good run out of a corner and the AI is way slower than me on exit, the AI is faster in the middle of the straight (which is illogical if they have the same engine power as me).

Result: no overtaking possible, being blocked behind an AI player and damned to slow laptimes due to slow cornering.

My setup can't be that bad, I hold the second fastest laptime in TT on this car/track combination.

What am I doing wrong here? Any thoughts would be really appreciated and might help others, too as this car/track combination is surely widely loved...

Greetings,
herakles