Modeling And Simulation Of 14 DOF Vehicle Dynamics

Amrik Singh, Phuman Singh (2009) Modeling And Simulation Of 14 DOF Vehicle Dynamics. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

An accurate vehicle model is important to represent the behavior of the vehicle. There are many vehicle models built for the study of the vehicle dynamics specifically for the ride and handling behavior. This project describes the vehicle model development of the vehicle model to study the behavior of the vehicle. The derivation of a 14 DOF vehicle model consisting of ride, handling and tire model is presented. Three types of tire model namely Calspan, Dugoff and Magic Formula is developed in the Simulink and their performance for longitudinal force, lateral force and aligning moment was investigated and compared with the CarsimEd outputs. The most accurate tire model which follows the output of the CarSimEd was chosen to be coupled with the 14 DOF model. All the assumptions made for the 14 DOF vehicle model is stated. This 14 DOF vehicle model will be then validated using instrumented vehicle for two steering inputs namely step steer, and double lane change. The deviation of the outputs specifically the yaw rate, lateral acceleration and roll angle of the vehicle body and also the slip angle at each of the tire from the 14 DOF model simulation from the experimental results is discussed.

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