Delta-Cross
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Documentation
In the 'suspension' tab, you can design the suspension geometry of the vehicle. Different suspension types are available for front and rear. Available suspension types forfront are:
Suspension types for rear are:
There are some basic parameters that are common to all suspension types. These parameters are explained below.
Vertical upward travel: Upside suspension travel (bump)
Vertical downward travel: Downside suspension travel (stoop)
Kingpin inclination: Angle of the kingpin (steering axis) from vertical to the inward direction
Caster: Angle of the kingpin (steering axis) from vertical to the backward direction
Hub offset: Offset of the hub (upright) from the centerline of the wheel to inward direction
Caster offset: Offset of kingpin from centerline of the wheel to forward direction
There are some advanced parameters that are specific to each suspension type. You can figure them out easily if you have understanding of that suspension type.
On the right side, there are geometry diagrams for suspensions. There is one diagram for front suspension geometry and one diagram for rear suspension geometry as shown below. Red cross represents the roll center of the suspension. Its height is governed by suspension type and its parameter values. Roll center should be kept above ground level but make sure to not raise it too close to COG otherwise it will induce jacking effect in the vehicle during cornering.
Below the front and rear geometry diagrams, there is a side view geometry diagram as shown below. Front and rear roll centers are shown as red dots in this diagram. A line joining these two dots is the roll axis. The amount of roll in the vehicle depends on the distance between this roll axis and COG.
Two black dots in this diagram are instantaneous dive and squat centers. Line joining the rear tire contact point to the squat instantaneous center is anti-squat line and line joining the front tire contact point to the instantaneous dive center is called anti-dive line. Dive and squat properties of the vehicle depend on the angle of these lines with the horizontal.