VSC-A presentation - ISO TC204 Standards Workshop Sept 08 JBK.ppt
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Vehicle Safety Communications -
Applications (VSC-A)
John B. KenneyToyota InfoTechnology Center
johnkenney@alumni.nd.edu
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VSC-A Project 3 year project - December 2006 to December 2009 Collaborative effort between 5 OEMs (Daimler, Ford, GM,
Honda & Toyota) and US DOT Goal: Determine if DSRC @5.9 GHz & vehicle positioning can
improve upon autonomous vehicle-based safety systems and/or enable new communication-based safety applications
Follow-on project to CAMP/DOT VSC I (2002-2004) project and CAMP internal Emergency Electronic Brake Lights (EEBL) project
Strong emphasis on resolving current communication and vehicle positioning issues so that interoperable future deployment of DSRC+Positioning based safety systems will be enabled
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VSC I 2002 - 2004
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VSC-A Main Objectives Develop scalable, common vehicle safety
communication architecture, protocols, and messaging framework necessary to achieve interoperability and cohesiveness among different vehicle manufacturers Standardize this messaging framework and the communication
protocols (including message sets) to facilitate future deployment
Develop accurate and commercially feasible relative vehicle positioning technology needed, in conjunction with the 5.9 GHz DSRC, to support most of the safety applications with high potential benefits
Develop and verify (on VSC-A system test bed) a set of objective test procedures for the selected vehicle safety communications applications
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Level I test bedimplementation
20092008 2007
VSC-A Research Activities and Timeline
Crash scenarios& safety apps. selection
DSRC+Positioning safety system conops, requirements and minimum perf. specs.
DSRC+Positioning and autonomous Sensing safety system analysis
Objective test procedures development
Coordination with standards development activities and other USDOT programsSAE, IEEE DSRC, CICAS-V, VII, Europe Car2Car, Japan ASV
System testing and objective test procedures
Benefit analysis support to USDOT, Volpe & Noblis
Level II test bedimplementation
June 2008April 2009
Relative vehicle positioning development
Message composition, standardization, security and communication protocols
Vehicle safety system test bedSystem design, algorithms (path prediction, threat, warning) & in-vehicle integration
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VSC-A Test Bed System DevelopmentMapping of applications to crash scenarios
V2V Safety Applications Crash Scenarios
EEBL FCW BSW LCW DNPW IMA CLW
1 Lead Vehicle Stopped
2 Control Loss without Prior Vehicle Action
3 Vehicle(s) Turning at Non-Signalized Junctions
4 Straight Crossing Paths at Non-Signalized Junctions
5 Lead Vehicle Decelerating
6 Vehicle(s) Not Making a Maneuver – Opposite Direction
7 Vehicle(s) Changing Lanes – Same Direction
8 LTAP/OD at Non-Signalized Junctions
EEBL: Emergency Electronic Brake LightsFCW: Forward Collision WarningBSW: Blind Spot WarningLCW: Lane Change WarningIMA: Intersection Movement AssistDNPW: Do Not Pass Warning
Note: Crash Scenario reference: “VSC-A Applications_NHTSA-CAMP Comparison v2” document, USDOT, May 2 2007. Selected based on 2004 General Estimates System (GES) data and Top Composite Ranking (High Freq., High Cost and High Functional Years lost).
Common blocks (minimum)
Common blocks (additional)
OEM specific or proprietary blocks
LegendVehicle Sensors (Non Production)
DVI Notifier
EngineeringDVI
Vehicle CAN Vehicle Signals (Production)
OBEThreat Arbitration
VehicleCAN to OBE Interface
DSRC Radio
Target Classification
Sensor Data Handler
WirelessMessage Handler
Host VehiclePath Prediction
Path History
V-V Safety Applications
EEBL BSW+LCW DNPWIMA FCW CLW
Security
A
A
CAN CAN ENET
Data Logger & Visualization Tools
Cameras / Audio in
Display
Data Logger
[From otherModules]
Eng. GUI
GPSunit
Serial
ENET
VGA
VSC-A System Test Bed (Level I)
ENET
Relative Positioning
Platform
CICAS-V
OTA messages
Common blocks (minimum)
Common blocks (additional)
OEM specific or proprietary blocks
LegendVehicle Sensors (Non Production)
DVI Notifier
EngineeringDVI
Vehicle CAN Vehicle Signals (Production)
OBEThreat Arbitration
VehicleCAN to OBE Interface
DSRC Radios (2)
Target Classification
Sensor Data Handler
WirelessMessage Handler
Host VehiclePath Prediction
Path History
V-V Safety Applications
EEBL BSW+LCW DNPWIMA FCW CLW
Security
A
A
CAN
CAN
ENET
Data Logger & Visualization Tools
Cameras / Audio in
Display
Data Logger
[From otherModules]
Eng. GUI
GPSunit
Serial
ENET
VGA
VSC-A System Test Bed (Level II)
ENET
Relative Positioning
Platform
CICAS-V
Forward LookingCamera System
(LDW)
CAN
OTA messages
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Level I Over-the-Air (OTA) Message Format Draft
Part I conforms to current draft J2735 Basic Safety Message (BSM).
Fields after Part I are to potentially be added to Part II of BSM.
VSC-A DSRC Common Safety Message
Content
Part ISAE J2735 Basic Safety Message - Part I (position, motion, control, veh.
size)
Part II
Vehicle Event Object (hard braking, control loss, etc.)
Message Sequence Number Object
Vehicle Path History Object
Vehicle Path Prediction Object
Relative Positioning RTCM 1002 data
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Current Program Activities and Status
System Test Bed Development May 2008: Level I Implementation with core modules (Path Prediction,
Path History and Target Classification) ready for engineering tests June 2008: All six V2V Safety Applications integrated and ready for
engineering tests August 2008: CICAS-V application integration
Communications and Standards Level I Development message set (flexible data elements) based on
SAE standard J2735 (VSC I) and implemented as part of Level I test bed
Security: Three candidate protocols to enhance current standard (1609.2) to be evaluated in 2008. HW & SW implementation of all 3 protocols planned for Level I Test Bed
IEEE 802.11 Task Group P (WAVE lower layers) Completed successful Letter Ballot May 3, 2008
Vehicle Relative Positioning Currently evaluating benefits of sharing GPS raw information over
DSRC link
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Future Work Level I Refinements
Safety Applications refinements OTA message optimization (minimize OTA size while supporting
safety applications needs)
Level II Design and Implementation Dual Radio Capability (Channel 172 usage) Power Control Testing (high and low power) Message Dissemination Protocols (use power, rate, and other
controls to mitigate network congestion and improve message delivery)
Vehicle Relative Positioning
Integration of Forward Looking camera system to analyze potential improvements of V2V relative positioning
Standards Participation Continue active involvement and contributions to
establish/finalize standards (SAE and IEEE DSRC WAVE) to facilitate future potential deployment
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Thank You
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