Crash Data Retrieval (CDR) is the process of obtaining crash data from a component installed in most passenger cars, SUVs, and trucks called an event data recorder (EDR). An EDR is that component whose primary function based on the collision parameters detected is to activate supplementary restraint systems, like airbags (e.g. frontal, torso, knee and side curtain shield) and seat belt pretensioners (retractor, buckle or anchor). An EDR’s secondary function is to record crash data. These stored event records may include but are not necessarily limited to pre-crash parameters such as vehicle speed, brake use, engine RPM and whether a seat belt was fastened, and crash parameters such as vehicle accelerations, crash duration, and velocity change.
Kurt Weiss is a certified crash data retrieval technician, operator, and data analyst, and uses Bosch Diagnostics’ Crash Data Retrieval Tool to image crash data. He started training with this technology in 2001. Mr. Weiss has since completed more than 200 hours of specialized training approved by Bosch Diagnostics, LLC, through Collision Safety Institute, CDR-Trainers, and Vetronix Corporation.
Crash data may help increase one's understanding of a traffic collision by providing additional information in support of traditional collision reconstruction methodologies. Mr. Weiss has testified about his methodology, his interpretation of crash data, and its application to his collision reconstruction analysis. He is frequently consulted by local law enforcement to obtain crash data to assist their criminal investigations.
A majority of the vehicle manufacturers have partnered with Bosch Diagnostics, thereby allowing law enforcement agencies, field specialists and engineer specialists like Mr. Weiss to image crash data stored in the EDRs. Supported vehicle manufacturers include: