A worst-case vehicle evaluation methodology has been successfully applied to generate extreme input excitations. Worst-case inputs are important because they are necessary to assess performance of vehicles or active-safety vehicle control systems. In this paper, two design examples were presented. In the truck example, it was found that the truck can roll over at a much reduced steering level if the brake pressure switches at a ill-timing. Preliminary sensitivity analysis and optimal design results show that the worst-case method could serve as the enabling technique for improved vehicle design or objective vehicle limit-performance assessment. In the AYC evaluation example, it was found that an AYC could behave extremely well under standard evaluation maneuvers (step steering, double lane change, brake in a J-turn) but can fail miserably under an identified worst-case maneuver at similar input levels. Currently, the authors are exploring the possibility of integrating the worst-case methodology with an iterative AYC design process.
Worst-case vehicle evaluation methodology - examples on truck rollover/jackknifing and active yaw control systems
Identifizierung von Worst-Case-Anregungssignalen zur Abschätzung von Fahrzeugeigenschaften in Extremsituationen
1998
7 Seiten, 15 Bilder, 2 Tabellen, 16 Quellen
Conference paper
English
Automotive engineering | 1999
|Taylor & Francis Verlag | 1999
|British Library Conference Proceedings | 1998
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