Virtual Proving Ground Simulation in Practice for Vehicle Durability and Ride Comfort Performance

A procedure of virtual proving ground simulation in practice for vehicle durability and ride performance is introduced in this paper. Digital road models including of durability and ride performance roads are created by a way of 3D laser scanning on proving ground. Then a high-accuracy full vehicle multi-body dynamic model is built, using complete vehicle design parameters. Meanwhile, due to its well-known ability to deal with medium and high frequency dynamic problems, FTire is incorporated in building the full vehicle model. Based on the road load data acquisition, driver control programs are developed to make the MBD model traveling with same track and speed as the test car, and then VPG simulation and validation are fulfilled. Comparing with test results, simulation results make a good prediction on wheel center forces, spring displacements, damper forces, and so on. Hence, the VPG simulation technology provides a powerful tool to meet the demand of vehicle durability and ride comfort analysis.