CDTire

CDTire offers a family of tire models with different levels of detail and performance characteristics to match various simulation requirements.

Model Comparison

ModelUse CaseReal-TimeFrequency RangeHIL/SIL/MIL
CDTire/3DPhysical, structural MBS tire model – for all applications.NoFullNo
CDTire/RealtimeHard real-time capable tire model – derived from CDTire/3D – for application on driving simulators and model, software or hardware in the loop.YesUp to 150 HzYes
CDTire/MF++Magic formula (PAC 2002) extended with temperature effectsYesYes
CDTire/ThermalTemperature prediction, can be coupled with CDTire/3D, CDTire/RT and CDTire/MF++YesDepending on the coupled modelYes

Applications

CDTire supports a wide range of vehicle development scenarios:

Ride comfort studies on digitized road surfaces
Harshness analysis on artificial obstacles such as cleats

Durability analysis to predict spindle forces while driving on a durability test track

NVH analysis using transient simulation in time domain or simulations in frequency domain based on linearized models

Steering moment analysis during parking maneuvers

Tire coupled test rig applications with up to all 6 directions driven for each tire

Handling analysis on flat and 3D roads
Active safety (ABS, ESP, …)
Safety analysis with different fourth wheel
Variation of inflation pressure till pressure loss
Rolling resistance prediction
Tire wear simulation
Misuse-like events including tire ground out (also with flexible rim)
Real-time applications like MIL / SIL / HIL