Tractor drive in circles infinitely

[rogeriodec]

This seems to be a recurring problem, but I didn't find a solution.
For some reason, sometimes my tractor stays doing circles, instead of following the path:

https://imgur.com/v1ScJLm

log.txt

[Tensuko]

Maybe same as #4370 ? try out (reduce speed) and report.

[rogeriodec]

Not the same, the speed is the default (10).

[pvaiko]

Log and video with debug channel 12 and 14 helps a lot.

[rogeriodec]

Here it is:

log.txt

and the video: https://i.imgur.com/YxX22Gw.mp4

[Petje81]

I'd like to add to this that i experienced worse steering behaviour since v. 303 (the last version i ran before updating).
In 303 i could let the worker just run a course (sprayer, tractor, anything) on higher turning speeds than 10 kph and it would turn like it should 9/10. On v. 310 it only turns right 1/10, the rest it will just keep driving in circles instantly when turning on a headland. Lowering speed to 10 kph makes it work 3/10.

[pvaiko]

Three out of 10 sounds like a really bad ratio at 10 km/h. A few examples would be great.

[pvaiko]

@rogeriodec to you specific case, with that spreader and 20m or so workwidth it does not make sense at all to make turn maneuvers in the corner, use the smooth headland corner options instead.

[Petje81]

Three out of 10 sounds like a really bad ratio at 10 km/h. A few examples would be great.

For example, fertilizing with a case puma (vanilla) and the kuhn fertilizer spreader (vanilla), 2 headlands on smooth goes great but when it comes to the main stretches on average 3 out of 10 turns on the headland the tractor makes it like it should, the rest it will go in infinite circles, sometimes it gets out of it after a couple, most of the time it stays in it.
Also with the Amazone Pantera (mod from ingame modhub), due to the large working width and the articulated steering it will oversteer itself, corrects it and keeps going in circles in opposite turning direction.

Thing is... it worked great on v303, 10/10 turns went perfect with both (not counting the little oversteer on the amazone because it corrected itself right) even on a higher turn speed (20 kph, those times with editted mods).

The only thing changed was going from v303 to v310 AND (maybe this is the culprit) getting updated to patch 1.5.1..
The courses were saved courses from v303.

Btw, have the max steering angles been changed? I noticed a bunch of vehicles making a larger turn than in v303 and not making it to the next arrow/pointer.

[pvaiko]

So is it the headland turns only?

Well, there was this change 454a0fc but I really did not expect to have it such a big impact. (BTW, I doubt those turns were actually performed at 20kph, I think it was much slower due to the Giants speed adjustment).

[Petje81]

So is it the headland turns only?

Well, there was this change 454a0fc but I really did not expect to have it such a big impact. (BTW, I doubt those turns were actually performed at 20kph, I think it was much slower due to the Giants speed adjustment).

Yes it is, no problem during the smooth corners (it is not spot on the markers but it will go through the corner).

With the giants speed adjustment is the current speed in the bottom right the right one or is it silently changed? Because i see the speed dropping to 20, keeping that speed and it is definetely faster than 10 kph on v310.

[pvaiko]

But what about the 180 turns?

You'd see the speed adjustment kicking in in the bottom right corner, yes, which it still does to a certain amount.

[Petje81]

Do you mean exactly 180 turns? Because the way the course is plotted out together with the working width there are hardly any 180 turns, just coupled 90 turns. I did see the combine harvesters and loading wagons do 180 turns without problems (smaller working width).

Ill check on this later, still at work.

[pvaiko]

I mean turns at the row end, not on the headland, where you see a green and the red arrow.

[rogeriodec]

Again, with a different tractor, composition, field, and path...
log.zip
Video