Possible Errors Occurring During Accident Reconstruction Based on Car “Black Box” Records

Guzek, Marek; Lozia, Zbigniew

doi:10.4271/2002-01-0549

Cited by 16 publications

(17 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such a possibility has been shown, with potential difficulties having been emphasised. This possibility confirms to some extent the conclusions formulated by the authors of this paper in [27,28]. This paper presents the methods of determining the vehicle velocities and trajectory from EDR records on the one hand and, on the other hand, computational examples showing how some simplifications in EDRs' design can affect the accuracy of the time curves being reconstructed.…”

Section: Introductionsupporting

confidence: 81%

“…The vehicle motion is treated as a two-dimensional one, with the parameters recorded being two acceleration components, i.e., longitudinal one a w and lateral one a p , and one angle, i.e., yaw angle ψ C , or its time derivative, i.e., yaw velocity. The assumptions adopted in the mathematical model of acceleration sensors' readings and the angular quantities have been described in dissertation [45] (and in [27] as well). An updated description can be found in [29,30].…”

Section: Model Of Edr Recordsmentioning

confidence: 99%

“…Thus, 6 degrees of freedom of the vehicle body solid (3 translations and 3 rotations) are taken into account. One more reference system has also been added to the coordinate sys- The assumptions adopted in the mathematical model of acceleration sensors' readings and the angular quantities have been described in dissertation [45] (and in [27] as well). An updated description can be found in [29,30].…”

Section: Model Of Edr Recordsmentioning

confidence: 99%

“…A model applicable to the readings describing angular position (angles or angular velocities) has been developed as well. Its formal description can be found in [27,45].…”

Section: Model Of Edr Recordsmentioning

confidence: 99%

“…This paper presents the methods of determining the vehicle velocities and trajectory from EDR records on the one hand and, on the other hand, computational examples showing how some simplifications in EDRs' design can affect the accuracy of the time curves being reconstructed. In these terms, the research works reported here are a direct continuation of those described previously in [27][28][29][30], but updated mathematical models of the test specimens adopted have been used in this case.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Are EDR Devices Undoubtedly Helpful in the Reconstruction of a Road Traffic Accident?

Guzek

Lozia

2021

Energies

Self Cite

View full text Add to dashboard Cite

All over the world, the vehicles introduced now into the market are usually provided with EDRs (Event Data Recorders), intended to measure and record the parameters that characterise the vehicle motion in the pre-, during-, and post-accident phases. The EDRs are to facilitate the description and reconstruction of possible road accidents. They are patterned on aircraft “black boxes” (flight recorders). Many of them have simplified design, disregarding three (of six) vector components that describe the motion of the vehicle body solid. In the paper presented, the authors used simulation models built by themselves to represent motor vehicle dynamics and the reconstruction of vehicle trajectory and velocities based on records obtained from two EDR types: “aircraft” one (EDR1) and “simplified” one (EDR2). Using a simulation method, they examined the impact of the said simplifications mentioned above on the quality of reconstruction of vehicle motion for four typical manoeuvres in road traffic. The calculation results obtained for input data adopted to rep-resent a medium-class passenger car have shown that the simplifications may cause considerable reconstruction errors. This particularly applies to the manoeuvres where significant changes took place in the roll and pitch angles of the vehicle body solid (to which the EDR was fixed) or where the changes were characterised by absence of symmetry in the parameters that describe the manoeuvre and by the constant sign of the vehicle body roll angles.

show abstract

Section: Introductionsupporting

confidence: 81%

Section: Model Of Edr Recordsmentioning

confidence: 99%

Section: Model Of Edr Recordsmentioning

confidence: 99%

“…A model applicable to the readings describing angular position (angles or angular velocities) has been developed as well. Its formal description can be found in [27,45].…”

Section: Model Of Edr Recordsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Are EDR Devices Undoubtedly Helpful in the Reconstruction of a Road Traffic Accident?

Guzek

Lozia

2021

Energies

Self Cite

View full text Add to dashboard Cite

show abstract

Implementation of the Vehicle Black Box Using External Sensor and Networks

Back

Kim

et al. 2010

Communication and Networking

View full text Add to dashboard Cite

Methods for determining the physical quantities describing the vehicle movement and the driver during a road accident

Gidlewski

Pusty

Jemioł

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

The paper compares the displacement and speed courses of cars, motorbikes and motorcyclists during a road accident obtained with the use of two measurement methods. In the first method, the course of the impact recorded by a fast camera recording 1000 frames per second was used (“frame by frame” film analysis). In the second method, the courses of accelerations and angular velocities of the objects were used (numerical integration of the recorded courses). The measurements were carried out during crash tests involving a frontal-side collision of two cars or a motorcycle with a car. The results has been shown in the time interval 0-0.5 s. During this period, the following phases of the experiment are observed: vehicle collision and the process of their deformation, the separation of vehicles, the start of independent movement of both vehicles after the collision. The measurement results obtained with the use of both methods are burdened with errors resulting, among others, from limited data sampling frequency, offset errors, calibration errors and sensor noise, duration of the analyzed waveforms. The use of two of the above-mentioned measurement methods simultaneously allows to minimize measurement errors.

show abstract

Possible Errors Occurring During Accident Reconstruction Based on Car “Black Box” Records

Cited by 16 publications

References 1 publication

Are EDR Devices Undoubtedly Helpful in the Reconstruction of a Road Traffic Accident?

Are EDR Devices Undoubtedly Helpful in the Reconstruction of a Road Traffic Accident?

Implementation of the Vehicle Black Box Using External Sensor and Networks

Methods for determining the physical quantities describing the vehicle movement and the driver during a road accident

Contact Info

Product

Resources

About