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Heavy Truck System Development

Heavy Truck System Development. Presented by: Michael Nowak Eaton Corporation ITS America 2007 Annual Meeting & Exposition Palm Springs, CA June 6, 2007. Overview. Design, develop, implement and verify a heavy truck integrated crash warning system providing: Forward crash warning (FCW)

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Heavy Truck System Development

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  1. Heavy Truck SystemDevelopment Presented by: Michael Nowak Eaton Corporation ITS America 2007 Annual Meeting & Exposition Palm Springs, CA June 6, 2007

  2. Overview • Design, develop, implement and verify a heavy truck integrated crash warning system providing: • Forward crash warning (FCW) • Address rear-end crashes • Lateral drift warning (LDW) • Address lane/road departure crashes • Lane change/merge warning (LCM) • Address lane change crashes • It will appear to drivers as a single system with an associated, integrated DVI

  3. Heavy Truck Sensor Suite Tractor Only Solution GPS, Yaw Rate, Tri-axial Accelerometer

  4. Prototype Tractor Sensors Rear Radar Eng. Camera Side Radar

  5. Prototype Tractor Sensors Forward Vision Forward Radar

  6. Heavy Truck System Architecture

  7. Driver-Vehicle Interface

  8. Lane Change/Merge (LCM)Concept of Operation • Provides side object presence indicators to the driver and warnings of unsafe maneuvers • Directional side visual and auditory display • Consistent with lateral drift warning (LDW) warning display • Progress: Base (1st generation) LCM subsystem functional and tested on development vehicle (Suburban) • Fuses side & rear radars and host vehicle trajectory information

  9. SIDE COLLISION ALERT LCM General Operation

  10. Lateral Drift Warning (LDW) Concept of Operation • Track lane boundaries • Measure vehicle position and lateral velocity relative to lane • Assess threat of lateral departure to warn drive when they are about to depart lane • Progress: Fully functional LDW subsystem tested on class 8 prototype vehicle

  11. LDW Availability SIDE COLLISION ALERT LDW General Operation

  12. Forward Crash Warning (FCW) Concept of Operation • Includes both a headway warning system and an imminent collision detection system • Provides drivers with graded cautionary warnings when headway time to a forward object drops below four established threshold levels • The forward collision system provides collision warnings whenever a significant risk of collision is detected • Progress: Fully functional FCW subsystem tested on class 8 prototype vehicle

  13. FCW Warning Logic Detection & Headway Alerts

  14. FCW Warning LogicCollision Alerts

  15. Arbitration Concept of Operation • Fundamentally rule-based approach with appropriate & specific exceptions to the rules taking into account • vehicle kinematics, cues to driver alertness, indications of driver awareness of the threat, driver information needs, & crash risks • Avoids contributing to driver errors, distraction, confusion, or information overload • Supports the development of an accurate and functional mental model of IVBSS

  16. Phase 1 - Summary of Major Accomplishments • Systems Engineering • Functional requirements • Performance specifications • System Development • Development environment: simulation, data acquisition, bench-top (real-time) and offline development • Build-up of Suburban development vehicle and class 8 tractor prototype vehicle • Initial release of full system capability (FCW, LDW, base LCM, base arbitration/DVI) on both Suburban & tractor • System performance & data collection with class 8 tractor (2 days on test track, 257 GB of data)

  17. Phase 1 – Remaining Activities • Build-up of FOT prototype class-8 tractor • Fit & finish of production vehicle • LCM subsystem implementation and refinement on prototype tractor • System level false alarm management / mitigation • Arbitration implementation and refinement on prototype tractor • DVI software development – visual and audible displays

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