Virtual Methods for the Consistent Development of Combined Vehicle Dynamics

The increasing complexity and diversity of modern vehicles requires efficient development methods and processes to ensure the profitability of a vehicle manufacturer in the competitive environment. Therefore, this paper presents a generic approach and related methods for the consistent virtual development of combined longitudinal and lateral vehicle dynamics. This process is based on the established V-model from systems engineering and is exemplary applied for the development of a mid-size electric SUV. First step of the approach is the definition of vehicle dynamics targets based on objective evaluation criteria. Afterwards, these targets are translated into target ranges of the relevant systems, subsystems and components parameters of the vehicle using a simulation-based target cascading approach. To support the calibration of vehicle dynamics control systems, a virtual calibration method involving sensitivity analysis and optimization techniques is proposed. The application of the methods for the development of a sample vehicle demonstrates their effectiveness and the potential for enhancing the efficiency of the vehicle development process.