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http://dx.doi.org/10.7467/KSAE.2015.23.6.615

Study on Reliability of New Digital Tachograph for Traffic Accident Investigation and Reconstruction  

Park, Jongjin (Physics & Engineering Division, National Forensic Service)
Joh, Geonwoo (Physics & Engineering Division, National Forensic Service)
Park, Jongchan (Traffic Accident Analysis Division, National Forensic Service)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.23, no.6, 2015 , pp. 615-622 More about this Journal
Abstract
Recently Digital-TachoGraph(DTG) was mounted mandatorily in commercial vehicles(Taxi, Bus, etc.). DTG records accurate and detailed information of the running state of vehicles related to traffic accident, such as Time, Distance, Velocity, RPM, Brake ON/OFF, GPS, Azimuth, Acceleration. Thus those standardized data can play an important role in traffic accident investigation and reconstruction. To develope the accurate and objective method using the DTG data for the reconstruction of traffic accident, we had conducted several tests such as driving test, high speed circuit test, braking test, slalom test at Korea Automobile Testing & Research Institute(KATRI), and collision test at Korea Automobile insurance repair Research and Training center(KART) with the vehicle equipped with several DTG. Development of the program which enables the reading and analysis of the DTG data was followed. In the experiments, we have found velocity error, RPM error, brake signal error and azimuth error in several products, and also non-continuous event data. The cause of these errors was deduced to be related to the correction factor, the durability of electronic parts and the algorithm.
Keywords
Digital tachograph; Traffic accident investigation; Traffic accident reconstruction; Event data recorder;
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