Crash pulse recorder (CPR):​ development and evaluation of a low cost device for measuring crash pulse and delta-V in real life accidents

Aldman, B.; Kullgren, A.; Lie, A.; Tingvall, C.

Affiliations

Abstract

The importance of accident reconstruction and analysis is fundamental. Accident severity can be measured in a variety of ways, but in frontal collision the change of velocity (ΔV), mean acceleration and crash time duration are most often used, ΔV and mean acceleration are estimated from vehicle damages. It is however known, that these estimates are poor if compared to laboratory test conditions. In order to increase the possibilities to evaluate real life accidents in the future, on board measurements is an effective technique. In this presentation, a new device aimed at measuring the crash pulse in real life accidents, is described. The device, called Crash Pulse Recorder (CPR), is a low cost spring mass system including a photographic technique. In the presentation, the construction as well as the output, performance and reliability are given.

Cited Works (5)

Year	Entry
1991	Kamrén B, Kullgren A, Lie A, Sköld B-Å, Tingvall C. Side protection and child restraints: accident data and laboratory test including new test methods. In: Proceedings of the 13th International Technical Conference on Experimental Safety Vehicles (ESV). November 4-7, 1991; Paris, France.341-345.
1991	Kamren B, von Koch M, Kullgren A, Lie A, Nygren A, Tingvall C. Advanced accident data collection: description and potentials of a comprehensive data collection system. In: Proceedings of the 13th International Technical Conference on Experimental Safety Vehicles (ESV). November 4-7, 1991; Paris, France.41-45.
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1982	Smith RA, Noga JT. Accuracy and sensitivity of CRASH. In: Proceedings of the 26th Stapp Car Crash Conference. October 20-21, 1982; Ann Arbor, MI. Warrendale, PA: Society of Automotive Engineers:317-334. SAE 821169.
1990	Otte D. Comparison and realism of crash simulation tests and real accident situations for the biomechanical movements in car collisions. In: Proceedings of the 34th Stapp Car Crash Conference. November 4-7, 1990; Orlando, FL. Warrendale, PA: Society of Automotive Engineers:329-347. SAE 902329.

Cited By (18)

Year	Entry
1992	Kullgren A, Lie A, Tingvall C. Photogrammetry for documentation of vehicle deformations: a tool in a system for advanced accident data collection. In: 36th Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM). October 5-7, 1992; Portland, OR.59-73.
1994	Kullgren A, Lie A, Tingvall C. The use of crash recorders in studying real life accidents. In: Proceedings of the 14th International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 23-26, 1994; Munich, Germany.856-862.
1994	Kullgren A, Lie A, Tingvall C. Photogrammetry used for measurement in field accident studies: development of a new simple system. In: Proceedings of the 14th International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 23-26, 1994; Munich, Germany.879-883.
1998	Kullgren A, Ydenius A, Tingvall C. Frontal impacts with small partial overlap: real life data from crash recorders. In: Proceedings of the 16th International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 31–June 4, 1998; Windsor, Ontario, Canada.259-268.
2003	Kullgren A, Krafft M, Tingvall C, Lie A. Combining crash recorder and paired comparison technique: injury risk functions in frontal and rear impacts with special reference to neck injuries. In: Proceedings of the 18th International Technical Conference on the Enhanced Safety of Vehicles (ESV). May 19-22, 2003; Nagoya, Japan.
2009	Bourdet N, Willinger R. A global head neck torso model for whiplash injury criteria investigation. In: Proceedings of the 21st International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 15-18, 2009; Stuttgart, Germany.
1991	Kamren B, von Koch M, Kullgren A, Lie A, Nygren A, Tingvall C. Advanced accident data collection: description and potentials of a comprehensive data collection system. In: Proceedings of the 13th International Technical Conference on Experimental Safety Vehicles (ESV). November 4-7, 1991; Paris, France.41-45.
1993	Kullgren A, Lie A, Tingvall C. Crash pulse recorder (CPR): validation in full scale crash tests. In: Proceedings of the 1993 International IRCOBI Conference on the Biomechanics of Impact. September 8-10, 1993; Eindhoven, The Netherlands.79-90.
1996	Kullgren A. Crash pulse recorder: results from car acceleration pulses in real life frontal impacts. In: Proceedings of the 1996 International IRCOBI Conference on the Biomechanics of Impact. September 11-13, 1996; Dublin, Ireland.211-222.
1999	Kullgren A, Thomson R, Krafft M. The effect of crash pulse shape on AIS1 neck injuries in frontal impacts. In: Proceedings of the 1999 International IRCOBI Conference on the Biomechanics of Impact. September 23-24, 1999; Sitges, Spain.231-242.
1999	Ydenius A, Kullgren A. Pulse shapes and injury risks in collisions with roadside objects: result from real-life impacts with recorded crash pulses. In: Proceedings of the 1999 International IRCOBI Conference on the Biomechanics of Impact. September 23-24, 1999; Sitges, Spain.435-442.
2001	Ydenius A, Kullgren A. Injury risk functions in frontal impacts using recorded crash pulses. In: Proceedings of the 2001 International IRCOBI Conference on the Biomechanics of Impact. October 10-12, 2001; Isle of Man, UK.
2002	Ydenius A. Influence of crash pulse duration on injury risk in frontal impacts based on real life crashes. In: Proceedings of the 2002 International IRCOBI Conference on the Biomechanics of Impact. September 18-20, 2002; Munich, Germany.
2008	Kullgren A. Dose-response models and edr data for assessment of injury risk and effectiveness of safety systems. In: Proceedings of the 2008 International IRCOBI Conference on the Biomechanics of Impact. September 17-19, 2008; Bern, Switzerland.3-14.
2010	Norin H. Field data: a base for the development of safe vehicles. In: Proceedings of the 2010 International IRCOBI Conference on the Biomechanics of Impact. September 15-17, 2010; Hannover, Germany.3-14.
2000	Kullgren A, Krafft M, Malm S, Ydenius A, Tingvall C. Influence of airbags and seatbelt pretensioners on ais1 neck injuries for belted occupants in frontal impacts. Stapp Car Crash J. 2000;44:117-125. SAE 2000-01-SC09.
1995	Kullgren A, Lie A, Tingvall C. Crash pulse recorder: validation in full scale crash tests. Accid Anal Prev. October 1995;27(5):717-727.
1999	Kullgren A. Crash-pulse recorders in real-life accidents: influence of change of velocity and mean and peak acceleration on injury risk in frontal impacts. J Crash Prev Injury Control. 1999;1(2):113-120.