Driving simulator requires real-time calculation of vehicle dynamics in response to driver’s input, such as steering maneuver, and throttle and brake pedal operation. The authors had developed a driving simulator with a 91-DOF multibody vehicle model, and this driving simulator has been used for the purpose of ‘virtual proving ground’, which means a virtual handling and ride test environment of automobiles with a driving simulator. Multibody analysis results can be evaluated through body sensory information such as acceleration produced by 6-axis motion base and visual information by computer graphics. For real-time analysis with multibody vehicle model, the authors developed an original MATLAB-based multibody analysis program This paper deals with the details about the environment of real-time multibody analysis for driving simulator and its performance, and applications of virtual proving ground.

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