1984-01-01

Systematic and Automatic Development of Vehicle-Dynamic Simulation Models 845057

Three-dimensional vehicle models used today in the field of vehicle dynamics lead especially in complicated applications, like trucks with trailers, to very extensive systems of motion equations.These equation systems are no longer transparent, simply because of their immensity. It is not possible to recognize eventual arising sign errors, which may be of significant importance for the vehicle movement.In the present paper a possibility will be discussed, in which motion equations can be designed and integrated automatically by a computer program with little input.Because of this, one is not forced to establish a fixed vehicle model at the beginning of the analysis. The development of the vehicle model can be undertaken step-by-step under consideration of parallel running practical driving tests.It is shown that the vehicle models which are used in vehicle-dynamics can be divided into simple kinematic systems, whose structure will be the input for the computer.

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