To evaluate the handling behaviour of the vehicle in the normal-driving and limit manoeuvres, under a variety of road conditions (dry, wet, μ-split, etc.), a dynamic model that can be effectively integrated with chassis control systems' algorithms like anti-skid devices, vehicle dynamic control, active suspensions, servo-assisted steering and braking, would be very useful.A modular, flexible, 15 degrees of freedom (DOF) model of the vehicle dynamics, implemented in Simulink, is presented here. It can be used “stand-alone” for vehicle handling performance prediction; integrated with control system algorithms, for their synthesis and offline pre-calibration; in “Hardware-in-the-loop” configurations, for testing control and diagnosis algorithms functionality.The model uses the Pacejka Magic Formulae for tyre modelisation and a Lagrangian approach for chassis, corners and powertrain dynamics. Suspensions' kinematics and compliance effects are reproduced through a functional approach, so that either experimental data can be imported directly from a full-vehicle test bench, or look-up tables can be derived from suspension requirements.The model has been used for simulating several “open-loop” handling manoeuvres, including roll-over tests, with wind and road gradient influences. A good correlation with experimental data has been observed.
ELASIS SIMUOVE (Simulator of Vehicle) A Vehicle Dynamic Model Oriented to Chassis Control Systems Synthesis and Verification
Sae Technical Papers
SAE 2002 Automotive Dynamics & Stability Conference and Exhibition ; 2002
2002-05-07
Aufsatz (Konferenz)
Englisch
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