Hybrid Computer Vehicle Handling Program [1974]

1974PDFTech ReportBohn, P. F.Prowznik, J.Keenan, R. J.Johns Hopkins University. Applied Physics LaboratoryUnited States. Department of Transportation. National Highway Traffic Safety AdministrationUnited States. Department of Transportation. National Highway Traffic Safety AdministrationUnited StatesAutomobiles by typeBrakingHandling characteristicsMathematical modelsSimulationSteeringSuspensionsValidationVehicle dynamicsDOT HS 801 290DOT-HS-213-3-695A hybrid computer simulation for vehicle handling studies has been implemented, checked out, and validated. The simulation has been programmed to study both solid rear axle and independent rear suspension vehicles. Model validation was accomplished using parametric data representative of four 1971 vehicles: Volkswagen Super Beetle, Chevrolet Brookwood, Dodge Coronet and Pontiac Trans AM. Braking, steering, and combinations of b.raking and steering were the inputs to the simulated mathematical model for the validation tests. This hybrid vehicle handling program can be used for general studies of vehicle dynamics. Performance of the standard passenger car vehicle handling test procedures and calculation of the associated comparison variables are simulation options. A special interactive user\u2019s interface has been added to allow program use by vehicle engineers as well as computer specialists.95