This Recommended Practice utilizes existing industry standards to identify a common physical interface and define the protocols necessary to retrieve records stored by light duty vehicle Event Data Recorders (EDRs). To accomplish this, the SAE J1962 Diagnostic Connector is designated as the primary physical interface for EDR Retrieval Tools.
This Recommended Practice is intended to be used for the development of EDR Retrieval Tools. Retrieval tools are intended to interface with light duty vehicles and to produce EDR Record Reports with data element formats specified by SAE J1698-1.
Limitations:
This Recommend Practice specifies how EDR records should be imaged, translated, and reported by EDR Retrieval Tools. It does not specify how EDR records are recorded and stored by individual vehicles.
This Recommended Practice addresses EDR Record Retrieval (including imaging and translating) via the connection to the vehicle’s SAE J1962 connector or via direct connection to an Electronic Control Unit (ECU) containing an EDR record. Direct connection to an ECU may require the use of specialized interface adapters.
Rationale
This Recommended Practice was first issued in 2004. The EDR Committee is updating SAE J1698-2 to incorporate new information about EDR imaging best practices.
The Event Data Recorder Committee reports to the Electrical Systems Group of the Motor Vehicle Council. The Committee is responsible for developing and maintaining SAE Standards, Recommended Practices, and Information Reports that produce common data output formats and definitions for a variety of data elements that make up an EDR record and that may be useful for analyzing vehicle crash and crash like events that meet specified trigger criteria. The scope is intended to govern EDR data element definitions, record retrieval methodology, and recommended tests for validating EDR function as applicable for light-duty Original Equipment applications. Participants in the Event Data Recorder Committee include OEMs, suppliers, consulting firms, government, and other interested parties.
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Event Data Recorder - Retrieval Tool Protocol
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Event Data Recorder - Retrieval Tool Protocol
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