TY - JOUR
T1 - Comparison of optimisation strategies for the determination of precise dummy head trajectories based on the fusion of electrical and optical measured data in frontal crash scenarios
AU - Klein, Edwin Christoph
AU - Sinz, Wolfgang
AU - Moser, Jörg
AU - Greimel, Robert
AU - Raguse, Karsten
AU - van Middendorff, Claas
AU - Steiner, Christina
PY - 2016
Y1 - 2016
N2 - When determining the trajectory of the dummy head during a vehicle crash test, the head is not visible for all cameras during the whole movement, since it, e.g., dips into the airbag. Another possibility is to calculate the trajectory with acceleration and gyro sensor data. When using low-cost inertial measurement units, the calculated trajectory differs from the video analysis by 0.15 metres. The idea is to model possible electrical sensor errors and inaccurate known initial conditions and determine them in an optimisation process in which the video trajectory is taken as the target function. This paper deals with the optimisation process to determine if the optimisation function has a unique minimum. Based on that, several optimisation algorithms are compared and three of them are selected for a detailed comparison. The best of them is selected to show the calculation of a trajectory for a real world crash test.
AB - When determining the trajectory of the dummy head during a vehicle crash test, the head is not visible for all cameras during the whole movement, since it, e.g., dips into the airbag. Another possibility is to calculate the trajectory with acceleration and gyro sensor data. When using low-cost inertial measurement units, the calculated trajectory differs from the video analysis by 0.15 metres. The idea is to model possible electrical sensor errors and inaccurate known initial conditions and determine them in an optimisation process in which the video trajectory is taken as the target function. This paper deals with the optimisation process to determine if the optimisation function has a unique minimum. Based on that, several optimisation algorithms are compared and three of them are selected for a detailed comparison. The best of them is selected to show the calculation of a trajectory for a real world crash test.
KW - Dummy trajectory calculation
KW - Sensor parameter optimisation
KW - Optimisation function
KW - Optimisation algorithm comparison
U2 - 10.1504/IJVSMT.2016.075235
DO - 10.1504/IJVSMT.2016.075235
M3 - Article
SN - 1745-6436
VL - 11
SP - 23
EP - 47
JO - Journal of Vehicle System Modelling and Testing
JF - Journal of Vehicle System Modelling and Testing
IS - 1
ER -