Research Article

A New Physical Parameter Identification Method for Two-Axis On-Road Vehicles: Simulation and Experiment

Table 1

The physical parameters of a 7-DOF vehicle model.

NotationDescriptionValuesUnits

Sprung mass1380kg
Sprung mass inertia of the pitch2440kg⋅m2
Sprung mass inertia of the roll380kg⋅m2
Unsprung mass of the front40.5kg
Unsprung mass of the rear45.4kg
Suspension stiffness of the front17000N/m
Suspension stiffness of the rear22000N/m
Tire stiffness of the front192000N/m
Tire stiffness of the rear192000N/m
Suspension damping coefficient of the front1500N⋅s/m
Suspension damping coefficient of the rear1500N⋅s/m
Distance from the sprung mass CG to the front axle1.25m
Distance from the sprung mass CG to the rear axle1.51m
Half width of the front axle0.74m
Half width of the rear axle0.74m