Print Email Facebook Twitter Real time control of restraint systems in frontal crashes Title Real time control of restraint systems in frontal crashes Author Griotto, G. Lemmen, P.P.M. van den Eijnden, E.A.C. van Leijsen, A.C.P. van Schie, C. Cooper, J. TNO Industrie en Techniek Publication year 2007 Abstract It is generally accepted that the targets for fatality reduction in car accidents set by Governments in Europe, USA and Japan can only be met by using advanced technologies that will include a broad range of sensors to monitor the crash likelihood and severity, vehicle condition, occupant type and posture. Information provided by these sensors can be used to increase the effectiveness of restraint systems. On the basis of information on the vehicle and the occupant status during the crash event, restraint parameters such as belt force and airbag outflow could be controlled real-time in such a way that injury levels sustained by the occupants are minimized. Real-time control during the crash event enables restraint systems to adapt to real world conditions and offers improved performance in terms of injury reduction over a much broader range of impact scenarios. This paper introduces the concept of real-time control of restraint systems and presents the results of a numerical study to assess potential reduction in terms of injury severity and injury-related costs provided by real-time restraint system control in real world conditions. Accident analysis was used to identify a number of real world relevant scenarios for a numerical study performed with MADYMO. A detailed compartment model with 50th percentile male driver with and without real time control of the restraint system was used. The controlled restraint parameters were belt force and airbag outflow. Specifications for the belt and airbag actuators were determined and aspects such as use of pre crash information were investigated. Copyright © 2007 SAE International. Subject SafetyAccident analysisAdvanced technologyCar accidentsCompartment modelFrontal crashesImpact scenariosInjury levelsInjury severityNumerical studiesPotential reductionRestraint systemsVehicle conditionAutomobile air bagsReal time controlSensorsAccidents To reference this document use: http://resolver.tudelft.nl/uuid:52abc71d-8471-4bbf-a0a4-17501c7a4f0f TNO identifier 472405 Publisher Society of Automotive Engineers (SAE) Source 2007 SAE World Congress and Exhibition, 16-19 April 2007, Detroit, MI, USA Series SAE Technical Papers Article number 2007-01-0440 Document type conference paper Files To receive the publication files, please send an e-mail request to TNO Library.