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CDR is the Acronym for “Crash Data Retrieval”
Crash Data Retrieval is a term used by those who use specialized equipment to "retrieve" the vehicle's EDR (event data recorder) data. This EDR data is also referred to as "crash data". CDR technicians and experts connect their EDR tool to an automobile allowing them to communicate with the vehicle and retrieve the EDR data file. Specialized software is then used to translate the EDR data file to a readable format for review and analysis.
CDR is also used in the name of the Bosch CDR Tool and the Bosch CDR Software. Other EDR Tool makers like GIT and Tesla, simply call their tool an "EDR Tool". These specialized tools are made up of hardware and software which provides the ability to “image”, “download”, or “retrieve” EDR data that may be stored in the control modules of passenger cars, light trucks and SUVs. The software component is a single, stand alone program designed to run in a Windows environment. The hardware part of the EDR Tool is a collection of components including interface modules (VCI), cables and adapters which, with proper training and minimal difficulty, are used to “retrieve” data from supported vehicles.
Crash Data Retrieval:
- CDR is an acronym for Crash Data Retrieval
- CDR is an acronym used to name the Bosch CDR Tool and Software
- is a process of retrieving EDR data from a vehicle
- the process of retrieving EDR data DOES NOT "reset”, “remove”, or “modify” data stored in the EDR
EDR is the Acronym for “Event Data Recorder”
An Event Data Recorder (EDR) is a function or device installed in a motor vehicle to record technical vehicle and occupant information for a very brief period of time before, during, and after a crash solely for the purpose of monitoring and assessing vehicle safety system performance.
After a vehicle module’s primary functions are complete, and where appropriate thresholds are met, data may be recorded as part of the “Event Data Recorder” (EDR) functionality or capability. An “EDR” is not a stand alone device and the data may not always be recorded.
EDRs may record:
- information, but only after some physical event like a crash
- vehicle dynamics information and system status for about 5 seconds before a crash
- certain driver inputs for about 5 seconds before a crash
- vehicle crash severity signature
- restraint use and deployment related information
- post-crash data such as the activation of an automatic collision notification (ACN) system
Imaging (Downloading) Crash Data
In the context of EDR Tool technology, the word “image” is used to describe the process of saving a digital copy of the EDR data / crash data which may be recorded in a supported vehicle to the person’s computer. Think of it being similar to a photographic image. When you take a picture of a vehicle, you are not physically changing or taking anything away from that vehicle, just getting an “image.” That vehicle is in the same condition as it was before the photograph. The EDR Tools simply retrieve an “image” of the crash data which may be in that vehicle and copies that data – as an “image” – to your computer in a secure digital file.
EDR data (crash data) is currently used by law enforcement, private accident reconstructionists, auto manufacturers, auto insurance companies, fleet management and government researchers to assist in accurately evaluating crashes involving passenger cars, light trucks and SUVs. By retrieving and reviewing the crash data stored in these vehicle, potential fault, fraud, liability, witness accounts and other evidence can be more effectively evaluated.