Massive Understeer With Default DAF XF105

Vorden
Posts: 5
Joined: 01 Sep 2015 20:56

Re: Massive Understeer With Default DAF XF105

#11 Post by Vorden » 05 Sep 2015 16:14

I been using the DAF for well over a year and I only started having this problem with the 1.20 update.

User avatar
_DC_
Posts: 262
Joined: 03 Jan 2014 12:30
Location: Lecco - Italy

Re: Massive Understeer With Default DAF XF105

#12 Post by _DC_ » 05 Sep 2015 17:09

Cadde wrote:The real question i ask myself is, why hasn't anyone tried moving the 5th wheel on the (most) affected trucks?
I know it requires Blender and all that but at least someone should give it a try?
And what about to move it just "virtually" by editing some file? is it possible or you must do it graphically as well? because, talking about graphics, i think there's no much room for movements, especially if you drive with some trailers.
Image

User avatar
Cadde
Global moderator
Posts: 9535
Joined: 24 Apr 2013 18:08
Location: Have no fear, i am from the internets!

Re: Massive Understeer With Default DAF XF105

#13 Post by Cadde » 05 Sep 2015 22:12

The hookup point is defined in the model. Not in a definition file.
And if that doesn't work due to visual collisions one might also need to move the point on the trailers?
But clearly, the fifth wheel is located in the wrong spot if the trailer acts as a lever on the truck... no?
ImageGreen text = Moderator action.
ImageWhite text = Opinions and general banter.
PEBCAK errors... PEBCAK errors everywhere! If my life had a log file, it would be filled with PEBCAK...

User avatar
CristianoH125
Posts: 2474
Joined: 01 Jul 2014 13:26
Location: Portugal

Re: Massive Understeer With Default DAF XF105

#14 Post by CristianoH125 » 05 Sep 2015 23:33

With one of my old XF e6 i Cant drive with 6x2 taglift/boogie the truck just wont stear and its caused i Think because im still using the first chassi scs did in 1.17 i Think scs stretched the 6xx chassi and thats why there is a bug on ther sideskirts they were made for the short one, they really need to recheck the lift axles fizics and animations
What a Lovely Day... !

yosimarpusma
Posts: 94
Joined: 08 Apr 2014 02:46

Re: Massive Understeer With Default DAF XF105

#15 Post by yosimarpusma » 07 Sep 2015 01:08

I also have problems with the DAF XF 6x4 , volvo FH16 CLASSIC 6X4 , scania R 6x4 and Scania streamline 6x4
Last edited by yosimarpusma on 10 Sep 2015 00:56, edited 1 time in total.

User avatar
_DC_
Posts: 262
Joined: 03 Jan 2014 12:30
Location: Lecco - Italy

Re: Massive Understeer With Default DAF XF105

#16 Post by _DC_ » 07 Sep 2015 18:57

Cadde wrote:The hookup point is defined in the model. Not in a definition file.
And if that doesn't work due to visual collisions one might also need to move the point on the trailers?
But clearly, the fifth wheel is located in the wrong spot if the trailer acts as a lever on the truck... no?
I really don't know, and sadly atm i don't have much freetime to modify models. But, waiting for an official fix i will try your solutions ;)
Watching my Scania 6x2/4 the 5th wheel seems in the "right" position, maybe tomorrow i will post a screen.
Image

User avatar
Cadde
Global moderator
Posts: 9535
Joined: 24 Apr 2013 18:08
Location: Have no fear, i am from the internets!

Re: Massive Understeer With Default DAF XF105

#17 Post by Cadde » 07 Sep 2015 19:06

The fifth wheel should be right between the two rear axles when the last axle is down. Otherwise it should be forward of the middle axle.
At no point should there be a seesaw effect on the truck.
If the fifth wheel is as far forward as it goes before the trailer hits the cabin then one can adjust the pin on the trailer IRL as far as i know.
ImageGreen text = Moderator action.
ImageWhite text = Opinions and general banter.
PEBCAK errors... PEBCAK errors everywhere! If my life had a log file, it would be filled with PEBCAK...

User avatar
_DC_
Posts: 262
Joined: 03 Jan 2014 12:30
Location: Lecco - Italy

Re: Massive Understeer With Default DAF XF105

#18 Post by _DC_ » 07 Sep 2015 21:24

Thank you for the informations man.
Image

User avatar
_DC_
Posts: 262
Joined: 03 Jan 2014 12:30
Location: Lecco - Italy

Re: Massive Understeer With Default DAF XF105

#19 Post by _DC_ » 08 Sep 2015 18:29

This is my situation (sorry for dark shots but it's barely night):
Image
Image
The 5th wheel seems to be in the right position but..i can barely drive with my 35t load..understeer in every turn, and moreover i don't have room for moving things.
One question: these trailer black "supports" (dunno the right english term) are "collidable"? maybe they're too much near the tractor and, during turns they block the rotation?
thank you in advance.
Image

User avatar
Cadde
Global moderator
Posts: 9535
Joined: 24 Apr 2013 18:08
Location: Have no fear, i am from the internets!

Re: Massive Understeer With Default DAF XF105

#20 Post by Cadde » 08 Sep 2015 18:35

The tag axle is too far up. This has been said before, there's just not enough spring in the tag axle.
The problem would be fixed by bringing the 5th wheel over and beyond the middle axle.

Don't know about collision though. But the problem occurs with all trailers as far as i know if their weight is too much for the tag axle.
ImageGreen text = Moderator action.
ImageWhite text = Opinions and general banter.
PEBCAK errors... PEBCAK errors everywhere! If my life had a log file, it would be filled with PEBCAK...

Post Reply

Return to “Bugs 1.20”

Who is online

Users browsing this forum: No registered users and 1 guest