The paper presents mathematical models and simulation studies of a car handling with regard the freeplay (backlash, clearance) and friction (viscous and dry friction with stiction) in a steering system. For description of these principal non-linearities in equations of motion a new method (basing on two piecewise-linear projections luz(…) and tar(…) as well as their special mathematical apparatus) has been used. Simulation models describe lateral dynamics of a passenger car with typical steering system including the freeplay and friction. Three types of open-loop car tests (parking like, lane change and sinusoidal test) have been used in the simulation. Some examples of results are presented. They show a sensitivity of car dynamics processes on the freeplay and friction in the steering system.
Vehicle Dynamics Simulation with Inclusion of Freeplay and Dry Friction in Steering System
Sae Technical Papers
SAE 2002 World Congress & Exhibition ; 2002
2002-03-04
Conference paper
English
Vehicle dynamics simulation with inclusion of freeplay and dry friction in steering system
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