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Third steering axle steering angle wrong

Forum Overview >> Farming Simulator 15

CategoryFarming Simulator 15
Created23.03.2016 19:22


Minno Doeven (foresterawd) 23.03.2016 19:28
Hello,

I'm relatively new to modding.
I'm trying to edit a mod to take out the bugs.

It's a five axle truck with first three axles steering, because the third axle is a lift axle it is an extra part in i3d.
Problem is first two axles are steering according to the ackermaan principle but the third is making the same angle as the first. Here is the xml-part:

<wheels autoRotateBackSpeed="1.8">
<wheel rotSpeed="1" restLoad="12.0" repr="0>0" forcePointRatio="0.2" radius="0.545" width="0.42" initialCompression="60" suspTravel="0.15" spring="80" damper="65" maxLatStiffness="30" mass="5" hasTyreTracks="true" tyreTrackAtlasIndex="4" tireType="street" />
<wheel rotSpeed="1" restLoad="12.0" repr="0>1" forcePointRatio="0.2" radius="0.545" width="0.42" initialCompression="60" suspTravel="0.15" spring="80" damper="65" maxLatStiffness="30" mass="5" hasTyreTracks="true" tyreTrackAtlasIndex="4" tireType="street" />
<wheel rotSpeed="1" restLoad="10.0" repr="0>47" forcePointRatio="0.3" radius="0.545" width="0.42" initialCompression="50" suspTravel="0.15" spring="45" damper="35" maxLongStiffness="20" maxLatStiffness="100" mass="5" hasTyreTracks="true" tyreTrackAtlasIndex="4" tireType="street" />
<wheel rotSpeed="1" restLoad="10.0" repr="0>48" forcePointRatio="0.3" radius="0.545" width="0.42" initialCompression="50" suspTravel="0.15" spring="45" damper="35" maxLongStiffness="20" maxLatStiffness="100" mass="5" hasTyreTracks="true" tyreTrackAtlasIndex="4" tireType="street" />
<wheel rotSpeed="1" restLoad="10.0" repr="1>0" forcePointRatio="0.3" rotateNode="0" radius="0.545" width="0.42" initialCompression="50" suspTravel="0.15" spring="45" damper="35" maxLongStiffness="20" maxLatStiffness="100" mass="5" hasTyreTracks="true" tyreTrackAtlasIndex="4" tireType="street" />
<wheel rotSpeed="1" restLoad="10.0" repr="1>1" forcePointRatio="0.3" rotateNode="0" radius="0.545" width="0.42" initialCompression="50" suspTravel="0.15" spring="45" damper="35" maxLongStiffness="20" maxLatStiffness="100" mass="5" hasTyreTracks="true" tyreTrackAtlasIndex="4" tireType="street" />
<wheel rotSpeed="0" restLoad="10.0" repr="0>2" forcePointRatio="0.3" radius="0.545" width="0.52" initialCompression="50" suspTravel="0.15" spring="85" damper="65" maxLongStiffness="20" maxLatStiffness="100" mass="4" hasTyreTracks="true" tyreTrackAtlasIndex="4" tireType="street" />
<wheel rotSpeed="0" restLoad="10.0" repr="0>3" forcePointRatio="0.3" radius="0.545" width="0.52" initialCompression="50" suspTravel="0.15" spring="85" damper="65" maxLongStiffness="20" maxLatStiffness="100" mass="4" hasTyreTracks="true" tyreTrackAtlasIndex="4" tireType="street" />
<wheel rotSpeed="0" restLoad="10.0" repr="0>4" forcePointRatio="0.3" radius="0.545" width="0.52" initialCompression="50" suspTravel="0.15" spring="85" damper="65" maxLongStiffness="20" maxLatStiffness="100" mass="4" hasTyreTracks="true" tyreTrackAtlasIndex="4" tireType="street" />
<wheel rotSpeed="0" restLoad="10.0" repr="0>5" forcePointRatio="0.3" radius="0.545" width="0.52" initialCompression="50" suspTravel="0.15" spring="85" damper="65" maxLongStiffness="20" maxLatStiffness="100" mass="4" hasTyreTracks="true" tyreTrackAtlasIndex="4" tireType="street" />
</wheels>

<ackermannSteering rotSpeed="60" rotMax="47" rotCenterWheel1="7" rotCenterWheel2="8" />

How can I get the third axle steering according to the ackermann principle?

Regards foresterawd


Kristian Asplund (Harryy) 17.04.2016 20:51
Hello!

I tryed that also but it doesnt work with ackerman.
You need to do like in FS13.

Emil Drefers (giants.edrefers) 18.04.2016 07:57
Hi,

you can adjust the "center point" for the calculation of the turning radius in the ackeramnn steering

e.g.
<ackermannSteering rotSpeed="60" rotMax="47" rotCenterWheel1="7" rotCenterWheel2="8" />

<ackermannSteering rotSpeed="60" rotMax="47" rotCenterNode="0>1" />

<ackermannSteering rotSpeed="60" rotMax="47" rotCenter="0.0 -2.3" />

Probably you should get what you want when you place the centert a short ditsance in front of the axle which should steere in the opposite direction.

Cheers,
Emil


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