Vehicle Physics
Physics & SimulationChaos Vehicle system: physics-based vehicle simulation, wheel configuration, suspension tuning, drivetrain setup, and input binding.
/skill vehicle-physics What This Skill Does
Vehicle Physics helps you build driveable vehicles in Unreal Engine using the Chaos Vehicle system. Whether you need an arcade sedan that feels responsive and fun, a realistic sports car with precise tire grip modeling, or a rugged off-road truck with long-travel suspension, this skill walks you through every aspect of vehicle creation: from the WheeledVehiclePawn Blueprint setup to wheel configuration, suspension tuning, engine torque curves, transmission and differential settings, and input binding for throttle, steering, brake, and handbrake controls.
Covers
- Chaos Vehicle Blueprint setup using WheeledVehiclePawn
- Wheel configuration: radius, friction, steering angle, and braking
- Suspension tuning: spring rate, damping, travel distance, and ride height
- Drivetrain: engine torque curves, transmission gear ratios, and differential types
- Vehicle input binding for throttle, steering, brake, and handbrake
- Vehicle mesh and collision requirements
- Vehicle audio basics: engine RPM-driven sound
- Common vehicle presets: sedan, sports car, truck, off-road, and go-kart
Does Not Cover
- Flying vehicles and hover vehicles → Flying Vehicle
- Boats and watercraft → Water Vehicle
- Tank treads and tracked vehicles → Tracked Vehicle
- AI vehicle driving → AI Navigation
How to Use
Invoke this skill in Claude Code:
/skill vehicle-physicsThis skill is also auto-detected when your prompt mentions vehicle, car, driving, wheel, suspension, throttle, steering, or drivetrain. AgentUX will automatically activate Vehicle Physics when it recognizes relevant context in your request.
Key Unreal Engine Concepts
| Concept | Description |
|---|---|
AWheeledVehiclePawn | The base pawn class for Chaos-powered wheeled vehicles, providing the skeletal mesh, movement component, and input framework. |
UChaosVehicleMovementComponent | The core movement component that holds all vehicle physics configuration: engine, transmission, wheels, suspension, and input processing. |
UChaosVehicleWheel | Defines per-wheel properties including radius, friction, steering angle, braking, and suspension travel for each tire. |
Torque Curve | The engine torque output plotted against RPM, shaping how the vehicle accelerates: peaky curves feel sporty, flat curves feel powerful. |
Differential | Controls how power is distributed between wheels: open differential, limited-slip, and front/rear split for AWD configurations. |
Anti-Roll Bar | Resists body roll during cornering; higher stiffness keeps the vehicle flatter through turns, essential for sports car handling. |
Related Skills
physics-fundamentals
Chaos physics engine: rigid bodies, forces, constraints, and ragdoll
enhanced-input
Enhanced Input System for mapping physical controls to vehicle actions
collision-setup
Collision primitives, channels, and response configuration for vehicle bodies
blueprint-basics
Visual scripting for vehicle Blueprint logic and input handling
What You'll Learn
- How to create a driveable vehicle from a WheeledVehiclePawn Blueprint
- How to configure wheels with proper radius, friction, and steering angles
- How to tune suspension for different vehicle types: comfort, sport, and off-road
- How to set up engine torque curves and transmission for realistic or arcade handling
- How to bind throttle, steering, brake, and handbrake inputs using Enhanced Input
- How to switch input contexts when entering and exiting vehicles