Highlights

Camber, toe, caster, track and roll-centre migration against wheel travel
Compare rigid joints with compliant bushes on the same hardpoints
Open-loop manoeuvres such as step steer, lane change, swept sine and fishhook
Test roads: planks, pothole, speed hump, kerb ramp, washboard and an asymmetric bump course
Built-in sample car and two trucks, editable on the page; free with a Twinsys account

A question it answers

How much does camber and toe change over 100 mm of wheel travel on this corner, and how much of that is the bushes rather than the linkage?

What you put in

Hardpoint coordinates for the linkage; spring rate, free length and damper curve; bush rates in all six components; tyre properties and the road surface; steering rack travel; anti-roll bar rate; and the travel or load sweep the rig should run. For a full vehicle: the built-in car, a vehicle file or a vehicle project folder, and the steering input. Built in: the sample car, a light tactical vehicle and a 15 t 4x4 on leaf-sprung beam axles with a steering box.

What you get

Kinematics and compliance curves against wheel travel — camber, toe, caster, track and roll-centre migration — plus the tyre contact patch position and load, spring and damper forces, bush deflections, steering geometry change through the sweep, and the reaction force and moment at every joint. For a full vehicle: yaw rate, roll, lateral acceleration, side slip, steering and tyre channels, a live 3D view of the car while the run solves, and a 3D animation of the finished run.