Tim.Wright wrote:There are 2 ways to change the toe and camber. Parameter variables and adjustable forces.
Parameter variable are in every suspension system and they change the the toe/camber angle in the design position of the car. This is related to the shape of the upright and how it connects to the control arms. It is connected to the DESIGN of the car (specifically the upright) NOT the setup of the car.
When the simulation starts, there will typically be some settling of the springs and bushings and the resulting toe and camber angles will usually be different from those in the design condition because everything has moved a little bit. This is where adjustable forces come in to adjust the angles back to your target values.
The adjustable forces work by changing the length of the toe link and wishbones until you reach the desired static values. This is done in the static equilibrium (i.e. before the simulation starts) and this is equivalent to the way that the static angles are set on the real car. Therefore this is used to modify the SETUP of the suspension and NOT the design of the upright.
I guess in your assy, you are changing the camber angle using adjustable forces and its moving the complete wishbone which therefore also changes the KPI. In the template editor you can change how the camber and toe link adjustments are made because every different type of adjustment will require a different setup in the template.
If the adjustable forces are moving the wishbones in a way which is different to the adjustment method on your car, then you have 2 options:
1. Change the template so the adjustable forces move work in the same way as your suspension adjustment method
2. Model the adjustments in CAD (like you suggested) and copy the new points (but don't forget to update the parameter variables with the new toe and camber values from CAD because now you have changed your design position!)
Thanks Tim.wright, as I said before, I have learn more today reading your replies that reading some books. So, let's recap to verify that I understood correctly:
1-If I start with the hardpoints of a square setup (0 camber and toe), I'll have to make the changes in the adjustable forces in order to get the desired camber and toe. However I'll have to check in the template how that change is made. I assume I'll have to change the position from where that change happends. I assumed you're talking about "hps_camber_adj_orient", isn't it?. If so, where should that point be located, in the coordinates of the point where I make changes (upper OBJ in my case) in the real car or the same longitudinal and vertical but in the middle of the car? or is it done in a different way?
2-If I start with a given setup (not square), I'll have to update the parameter variable in order to make it match my given setup. right!?
So if 2 is correct, the question is... if afterwards I decide to make a change in my initial setup (I had camber= -1) by changing adjustable forces, my new real setup will be i.e. parameter variable camber (-1) + adjustable forces (-1) = real setup (-2)?
Thanks