| WORST-CASE SCENARIO DEVELOPMENT BASED ON SINE WITH DWELL TEST AND EVALUATION FOR VEHICLE DYNAMICS CONTROLLER IN UCC HILS |
| J. Y. KIM1, D. H. JUNG2, C. H. JEONG1, H. J. CHOI2 |
1KATECH
2Korea Automotive Technology Institute |
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| ABSTRACT |
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The current test methods are insufficient to evaluate and ensure the safety and reliability of vehicle systems for all possible dynamic situations, including the worst case scenarios such as rollover, spin-out and so on. Although the known NHTSA Sine with Dwell steering maneuvers have been applied for the vehicle performance assessment, they are not enough to estimate other possible worst case scenarios. Therefore, it is crucial for us to verify the various worst case scenarios, including the existing severe steering maneuvers. This paper includes useful worst case scenarios based upon the existing worst case scenarios mentioned above and worst case evaluation for the vehicle dynamic controller in a simulation basis and UCC HILS. The only human steering angle was selected as a design parameter here and optimized to maximize the index function to be expressed in terms of both yaw rate and side slip angle. The obtained scenarios were enough to generate the worst case scenario to meet NHTSA worst case definition. It has been concluded that the new procedure in this paper is adequate to create other feasible worst case scenarios for a vehicle dynamic control system. |
| Key Words:
Worst case scenario in vehicle system, Sine-with-dwell, Unified Chassis Control (UCC), Hardware-in-theloop-simulation (HILS), National Highway Traffic Safety Administration (NHTSA), Electronic Stability Control (ESC), Worst case scenario generation procedure |
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