Research Article
A New Physical Parameter Identification Method for Two-Axis On-Road Vehicles: Simulation and Experiment
Table 5
Estimated physical parameters for the school bus.
| Notation | Description | Estimate values | Units |
| | Sprung mass | 4320 | kg | | Sprung mass inertia of the pitch | 8800 | kg⋅m2 | | Sprung mass inertia of the roll | 3450 | kg⋅m2 | | Unsprung mass of the front | 130 | kg | | Unsprung mass of the rear | 330 | kg | | Suspension stiffness of the front | 155000 | N/m | | Suspension stiffness of the rear | 260000 | N/m | | Tire stiffness of the front | 880000 | N/m | | Tire stiffness of the rear | 1760000 | N/m | | Equivalent suspension damping coefficient of the front | 4000 | N⋅s/m | | Equivalent suspension damping coefficient of the rear | 5000 | N⋅s/m | | Equivalent half of the shock absorber left-to-right distance at front/rear of vehicle | 0.64 | m |
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