Suspension Designer Library

Suspension Key Performance Indicators (KPIs) can be used to understand how a suspension system will perform under different driving conditions, e.g. during cornering, braking, steering, etc. The Kinematics and Compliance (K&C) KPIs used in RACE suspension multibody simulation software are listed below. Each KPI is linked to an article explaining the measure and its effect on vehicle performance.

KINEMATICS

GEOMETRY

Static Camber
Static Toe
Static Castor
Kingpin Angle (free preview)
Wheel Centre Offset
Wheel Centre Longitudinal Offset
Scrub Radius
Castor Trail
Track Width at Contact Patch

VERTICAL

Bump Camber
Bump Steer
Bump Castor
Wheel Rate (free preview)
Spring Ratio
Damper Ratio
Kinematic Wheel Centre Recession
Contact Patch Lateral Migration

ROLL

Roll Camber
Roll Steer
Wheel Rate in Roll

STEERING

Steering Ratio
Static Toe Link Load
Ackermann at 50mm Tack Travel
Lock Angle +50mm Rack Travel
Lock Angle -50mm Rack Travel

COMPLIANCE

CORNERING

Compliance steer
Camber compliance
Contact patch compliance
Tyre torque compliance
Roll centre height – Force based (free preview)

BRAKING

Brake steer
Contact patch longitudinal compliance
Anti-Dive/Anti-Lift (free preview)

TRACTION

Traction steer
Traction steer – single wheel
Wheel centre longitudinal compliance
Anti-Lift/Anti-Squat (free preview)