This recommended practice describes common definitions and operational elements of Event Data Recorders. The SAE J1698 series of documents consists of the following:
• SAE J1698-1 - Event Data Recorder - Output Data Definition; Provides common data output formats and definitions for a variety of data elements that may be useful for analyzing vehicle crash and crash-like events that meet specified trigger criteria.
• SAE J1698-2 - Event Data Recorder - Retrieval Tool Protocol; 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).
• SAE J1698-3 - Event Data Recorder - Compliance Assessment; Defines procedures that may be used to validate that relevant EDR output records conform with the reporting requirements specified in Part 563, Table 1 during the course of FMVSS-208, FMVSS-214 and other applicable vehicle level crash testing.
Rationale: This Recommended Practice was first issued in 2005. It is being revised in order to separate the various aspects of EDRs into other more focused documents. This document now becomes an overall parent document to the other SAE J1698 series of documents.
EDR data has multiple potential uses. This document focuses on EDR data used to understand the operation of various vehicles systems such as the occupant protection system. EDR data has application in support of crash reconstruction and assisting in setting roadway safety policies.