Ground Vehicle Standards Newsletter - July 2015 - 2

DEDICATED SHORT RANGE COMMUNICATION
STANDARDS REVISED
A revised version of "SAE J2735™: "Dedicated Short Range
Communications (DSRC) Message Set Dictionary," was issued by
the DSCR (Dedicated Short Range Communication) Committee
in April. This amendment is motivated by a European, Japanese,
and US need to support early pilot deployments using the MAP
and SPAT (Signal Phase and Timing) messages.
This standard is designed to support interoperability among
DSRC applications through the use of a standardized message
set, and its data frames and data elements. It specifies a
message set, and its data frames and data elements specifically
for use by applications intended to utilize the 5.9 GHz Dedicated
Short Range Communications for Wireless Access in Vehicular
Environments (DSRC/WAVE) communications systems. The
standard specifies the definitive message structure and provides
sufficient background information to allow readers to properly
interpret the message definitions from the point of view of an
application developer implementing the messages according to
the DSRC Standards.
Originally issued in 2006 and then revised in 2009, the
new revision reflects various improvements determined by
developing requirements and field testing, incorporating
a number of additional desired features into the message
structures which trials have exposed.

THREE NEW TASK FORCES OF THE DSRC
(DEDICATED SHORT RANGE COMMUNICATION
COMMITTEE) BEEN FORMED
J2945/1© On-board Minimum Performance Requirements
for V2V Safety Systems Task Force: This standard defines
interface performance specifications and IEEE 802.11, IEEE 1609
and J2735™ standards profiles for the V2V interface in support of
NHTSA's V2V rulemaking. Chair is Justin McNew, JMC Rota.
J2945/6© Performance Requirements for Cooperative
Adaptive Cruise Control and Platooning Task Force: This
standard defines the data exchange will be necessary for
coordinated maneuvers. The definition of the categories should
start with differentiating Platooning and CACC, then determining
message sets and performance to realize cooperative
vehicles. This is an important step in realizing the role of V2X
communication with automated vehicles. Chair is Aravind
Kailas, Volvo.
J2945/9© Performance Requirements for Safety
Communications to Vulnerable Road Users Task Force: This
standard defines Vulnerable Road User (VRU) use cases enabled
by DSRC, make recommendations for performance levels and
define output support VRU applications. Chair is Sue Bai, Honda.

SAE INTERNATIONAL PROVIDES VIBRATION ENDURANCE VALIDATION CONSULTING SERVICES
TO MAJOR CHINESE OEM
On February 2-3 in Shanghai,
China, SAE International provided
a consulting service to a major
Chinese OEM on vibration endurance
validation test requirements for
electric powertrain components used
in xEV (plug-in) vehicles.
Vibration endurance validation tests
for electric powertrain components
(such as traction batteries, traction
motors, and power electronics
inverters) are needed to support
xEV product development since ISO
16750-3 generally does not apply due
to their larger mass. This technical consulting service covered
all key areas in creating vibration endurance validation test
requirements for electric powertrain components.
The OEM rated the quality of this service highly, and stated
that this project will save them a considerable amount of

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development and product cost, as compared to validating
the design of electric powertrain components using ISO
16750-3 directly Contact: Keith Wilson, Project Manager, SAE
Technical Programs at keith.wilson@sae.org.

SAE International Ground Vehicle Standards Newsletter
Ground Vehicle Standards Newsletter - July 2015

Table of Contents for the Digital Edition of Ground Vehicle Standards Newsletter - July 2015
