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2009 - Simulation of real crashes as a method for estimating the potential benefits of advanced safety technologies (Paper)

Since secondary safety systems have been

implemented in modern cars successfully, the

development of primary safety systems becomes

more and more important. That causes the necessity

of useful methods to estimate the benefit of these

advanced safety systems. In this paper a new

method for the benefit estimation of advanced

safety systems by simulating real world crashes is


The bases of this simulation are real world crashes

out of the GIDAS (German In-Depth Accident

Study) database, including reconstruction data,

accident sketches and safety systems specifications.

The result of this method is a comparison between

the simulated real accident scenario and the

predicted accident scenario using a virtual

prototype of the safety system. Using this

comparison it is possible to estimate the benefit for

the single case as well as the global benefit for all

cases. The simulation will be done with a car

dynamic simulation program. Therefore,

interactions between sensor systems, brakes and

steering controls can be considered.

Furthermore, it is also possible to simulate crash

involved cars with more than one safety system.

The benefit will be estimated regarding accident

avoidance and/or accident mitigation based on all

available cases in GIDAS.

Another possibility of such a simulation is to find

out potentials of the further development of

advanced safety systems or to develop new

activating strategies by checking up parameters like

yaw-angle, lateral acceleration or steering wheel


This paper explains a method for the estimation of

potential benefits of primary safety systems and

exemplified results.

The paper offers the possibility of a dynamic

simulation of real world accident initiations with

and without virtual safety systems. The results

provide detailed information about useful

combinations of advanced safety systems.



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