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SAE International


SAE International Launches Two New Technical Standards for Data Message Sets

Will allow vehicle OEMs and other developers to build interoperable V2V systems

Published: Thursday, April 7, 2016 - 11:55

(SAE International: Warrendale, PA) -- SAE International has published two new technical standards that standardize the data message sets used in vehicle-to-vehicle (V2V) communications and establish the parameters for a vehicle communication system to receive and transmit the message sets. These cross-cutting industry standards allow vehicle OEMs and other developers to build interoperable V2V systems that will ensure that vehicles from different manufacturers are able to successfully communicate with each other.

“V2V technology is an important and growing safety technology for future vehicles,” says Jack Pokrzywa, director of ground vehicle standards for SAE International. “These new standards establish the parameters on how vehicles communicate with each other, thereby improving their safety effectiveness by designing interoperable systems.”

SAEJ2735—“Dedicated short range communications (DSRC) message set dictionary” is the fifth edition of the message set dictionary and specifies a message set as well as its data frames and data elements specifically for safety applications intended to use 5.9 GHz DSRC for V2V communication systems. This standard also supports interoperability among DSRC applications through the use of a standardized message set and its data frames and data elements. Common and interoperable message sets are the cornerstone of V2V safety applications.

SAE J2945/1—“On-board system requirements for V2V safety communications” is the first edition of on-board system requirements for V2V safety communications and specifies the parameters for a system to transmit and receive the SAE J2735-defined safety messages over a DSRC wireless communications link. It also ensures that the exchange of safety messages in V2V safety communications provides the desired interoperability and data integrity to support the performance of the envisioned safety applications, and provides the information necessary to build interoperable systems that support select safety applications.

It’s expected that both standards will be cited in the National Highway Traffic Administration’s (NHTSA) upcoming Federal Motor Vehicle Safety Standard Number 150 (FMVSS 150) rulemaking, which will require V2V communication capability for light-duty vehicles, and create minimum performance requirements for V2V devices and messages.

Both standards are available on SAE International’s website.


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SAE International

SAE International with headquarters in Troy Michigan, is a global association of more than 138,000 engineers and related technical experts in the aerospace, automotive, and commercial-vehicle industries. SAE International’s core competencies are life-long learning and voluntary consensus standards development. SAE International’s charitable arm is the SAE Foundation, which supports many programs including A World in Motion, SAE’s curriculum program that brings science, technology, engineering, and mathematics (STEM) to life in the classroom, and the Collegiate Design Series.