Browse Publications Technical Papers 2003-01-0859
2003-03-03

Kinematic Suspension Model Applicable to Dynamic Full Vehicle Simulation 2003-01-0859

Computer simulations are popular for modeling vehicle system dynamics. However, further refinement of the vehicle dynamic model is required for extensive use in the automotive industry. In this paper, the model refining procedure is illustrated by developing reliable kinematic models verified with laboratory test results; instrument test data; and a mathematical optimization method. More specifically, simple kinematic models are developed for reduced computation times using ADAMS. They are tuned by the gradient-based optimization technique using the results from a laboratory testing facility, which includes the compliance effect in order to use the kinematic models in dynamic simulations. Also the Magic Formula tire model is developed using the optimization method and tire property data for the STI (Systems Technology, Incorporated) tire model. Finally these models are verified in the full vehicle multibody dynamic simulation with instrument measurement data from the lane change and slowly increasing steer handling test.

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