SAE J2728-2020 PDF
Name in English:
St SAE J2728-2020
Name in Russian:
Ст SAE J2728-2020
Original standard SAE J2728-2020 in PDF full version. Additional info + preview on request
Full title and description
SAE J2728-2020 — Heavy Vehicle Event Data Recorder (HVEDR): a recommended practice providing nomenclature and references for event data recorders used on heavy-duty (HD) ground wheeled vehicles.
Abstract
SAE J2728-2020 defines terminology and points to related documents needed to specify, implement and interpret Heavy Vehicle Event Data Recorder (HVEDR) functions for heavy vehicles. The document serves as a concise reference for nomenclature and links to companion documents that expand on data content, triggers, and implementation details for HVEDR systems.
General information
- Status: Revised (current revision issued November 30, 2020).
- Publication date: November 30, 2020 (J2728_202011).
- Publisher: SAE International.
- ICS / categories: Road vehicle systems (automotive electronics / event data recorders; commonly indexed under vehicle systems / 43.040).
- Edition / version: 2020 edition (document number J2728_202011).
- Number of pages: 4 pages (concise recommended practice / nomenclature document).
Scope
Provides nomenclature and references to related documents for Heavy Vehicle Event Data Recorders (HVEDR) intended for heavy‑duty ground wheeled vehicles (typically Class 3–8). The scope focuses on establishing common terminology and pointers to companion documents that define data elements, event triggers, and implementation guidance for HVEDR functions on vehicles that commonly use SAE vehicle communication networks such as J1939 and legacy J1708/J1587.
Key topics and requirements
- Standardized nomenclature and definitions for HVEDR functions and records.
- References to companion documents that specify data elements and event triggers (see J2728-1 for data and triggers).
- Guidance on minimum ("Tier 1") capabilities as described in the broader J2728 series and earlier Tier 1 recommended practice.
- Consideration of vehicle network sources (e.g., SAE J1939, J1708/J1587) as data origins for HVEDR recordings.
- Interoperability and timestamp/synchronization considerations important for crash investigation and data correlation.
Typical use and users
Used by OEM engineering teams, HVEDR and telematics suppliers, regulatory bodies, crash investigators and forensic analysts, fleet operators, and testing laboratories. The standard is primarily a reference for those specifying or interpreting event data recorder functionality, and for organizations developing companion documents or training (e.g., investigator training and data‑access procedures).
Related standards
Key related documents include SAE J2728-1 (Heavy Vehicle Event Data Recorder — Data and Triggers, 2020) and the earlier J2728_201006 Tier 1 recommended practice; relevant vehicle communication standards such as SAE J1939 are commonly referenced as data sources. The J2728 series cross‑references multiple SAE communications and diagnostic recommended practices used in heavy vehicles.
Keywords
HVEDR, Heavy Vehicle Event Data Recorder, event data recorder, EDR, SAE J2728, J2728-1, J1939, data triggers, nomenclature, heavy-duty vehicles, crash investigation.
FAQ
Q: What is this standard?
A: SAE J2728-2020 is a brief SAE recommended practice that establishes nomenclature and points to related documents for Heavy Vehicle Event Data Recorders (HVEDR) used on heavy‑duty ground vehicles.
Q: What does it cover?
A: It covers standardized terms and references needed when specifying or discussing HVEDR functions; it does not itself list the full data element set (that detail appears in companion documents such as J2728-1).
Q: Who typically uses it?
A: OEM engineers, HVEDR/telematics suppliers, crash investigators, regulators, fleet safety professionals and test labs use it as a terminology and reference guide when designing, deploying or interpreting HVEDR systems.
Q: Is it current or superseded?
A: The 2020 document (J2728_202011) is a revision that updates and supersedes earlier material (the J2728 family includes a 2010 Tier‑1 recommended practice and subsequent companion documents). Status is listed as Revised (2020).
Q: Is it part of a series?
A: Yes — J2728 is a series. Notable companions include J2728-1 (Data and Triggers) and the earlier Tier‑1 J2728 recommended practice; the series cross‑references other SAE communications/diagnostic standards used in heavy vehicles.
Q: What are the key keywords?
A: HVEDR, event data recorder, heavy vehicle, EDR, SAE J2728, nomenclature, data triggers, J1939.