TY - JOUR A1 - Mühlfeld, Florian A1 - Doric, Igor A1 - Ertlmeier, Rudolf A1 - Brandmeier, Thomas T1 - Statistical Behavior Modeling for Driver-Adaptive Precrash Systems JF - IEEE Transactions on Intelligent Transportation Systems N2 - Precrash systems have the potential for preventing or mitigating the results of an accident. However, optimal precrash activation can be only achieved by a driver-individual parameterization of the activation function. In this paper, an adaptation model is proposed, which calculates a driver-adapted activation threshold for the considered precrash algorithm. The model analyzes past situations to calculate a driver-individual activation threshold that achieves a desired activation frequency. The advantage of the proposed model is that the distribution is estimated using a distribution model. This has the result that an activation threshold can be already determined using a small data set. In addition, the confidence interval that has to be considered is decreased. The proposed model was applied in a study with test subjects. Results of this paper confirm the usability of the model. In comparison with an empirical approach, the proposed model achieves a significantly lower threshold and, thus, a higher safety effect of the system. Y1 - 2013 U6 - https://doi.org/10.1109/TITS.2013.2267799 VL - 14 IS - 4 SP - 1764 EP - 1772 PB - IEEE ER - TY - JOUR A1 - Ertlmeier, Rudolf A1 - Mühlfeld, Florian A1 - Faisst, Holger A1 - Jumar, Ulrich A1 - Brandmeier, Thomas T1 - Verbesserung modellbasierter Überschlagserkennung mittels Schätzung relevanter Fahrzeugparameter JF - at - Automatisierungstechnik Methoden und Anwendungen der Steuerungs-, Regelungs- und Informationstechnik N2 - Passive Rückhaltemittel wie Airbags können Fahrzeuginsassen während eines Überschlags vor Verletzungen schützen. Der Beladungszustand eines Pkws ist jedoch entscheidend für dessen Kippverhalten, wodurch auch die Detektion eines Überschlags beeinflusst wird. Dieser Beitrag zeigt eine Schätzung relevanter Fahrzeugkennwerte und die damit mögliche Optimierung eines modellbasierten Überschlagserkennungssystems N2 - Passive safety systems like airbags are able to protect vehicle occupantsfrom injuries during a rollover. The loading condition of a car has a crucial impact on its roll behavior as well as on the rollover detection algorithm. This paper depicts a method forestimating relevant vehicle parameters and the possibility of optimizing a model-based rollover detection system. Y1 - 2012 U6 - https://doi.org/10.1524/auto.2012.1010 VL - 60 IS - 7 SP - 417 EP - 426 ER - TY - CHAP A1 - Mühlfeld, Florian A1 - Ertlmeier, Rudolf A1 - Happe, Johannes A1 - Brandmeier, Thomas T1 - Criticality Estimation of Pre-Crash Scenarios T2 - 14th International IEEE Conference on Intelligent Transportation Systems (ITSC) N2 - The activation of Pre-Crash systems like a reversible seat belt pretensioner can reduce the injury level of an occupant during a collision. The time-to-collision is a common criterion for discriminating between critical and non-critical situations. This paper investigates the driver's behavior as well as his/her criticality estimation of Pre-Crash scenarios and models the criticality estimation to a classification with features of the situation. Experimental data is analyzed regarding its possibility to model the subjective driver estimation by measured features. A situation model is developed that predicts a classification criterion, which can be used for Pre-Crash activation functions. Y1 - 2011 U6 - https://doi.org/10.1109/ITSC.2011.6082950 SP - 1211 EP - 1216 ER - TY - CHAP A1 - Mühlfeld, Florian A1 - Ertlmeier, Rudolf A1 - Brandmeier, Thomas T1 - Prädiktionsmodell der Fahrzeugtrajektorie für vorausschauende Sicherheitssysteme T2 - 10. Magdeburger Maschinenbau-Tage Y1 - 2011 ER - TY - JOUR A1 - Mühlfeld, Florian A1 - Ertlmeier, Rudolf A1 - Brandmeier, Thomas T1 - Integration von Aktiver und Passiver Sicherheit zur Erhöhung des Fahrzeuginsassenschutzes (APS) JF - Forschungsbericht 2008 Y1 - 2008 SP - 34 EP - 35 ER -