Christopher Barickman - The pumpking songbook - pracovni sesit
Frank S. Barickman, NHTSA Heath Albrecht, NHTSA Meetings... · SAE INTERNATIONAL NHTSA Initiated...
Transcript of Frank S. Barickman, NHTSA Heath Albrecht, NHTSA Meetings... · SAE INTERNATIONAL NHTSA Initiated...
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PCAM VALIDATION TESTINGFrank S. Barickman, NHTSAHeath Albrecht, NHTSA
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The presenter would like to thank the many individuals who contributed to this research.
Mikio Yanagisawa, VolpeWassim Najm, Volpe
Michael Carpenter, General MotorsTim Zwicky, FordTodd Moury, DelphiJeff Skvarce, ContinentalMatthias Struck, Mercedes-Benz
John Martin, NHTSAEric Gerdis, TRC, Inc.
Acknowledgements
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Previous Session (Crash Avoidance I – Near Term Technologies)
NHTSA’s PCAM Testing and Dummy Development• Test Maneuvers (Scenarios) • Test Mannequin Development • Test Apparatus (Motion Control)
This Session• Discuss preliminary PCAM results from testing production
level vehicles and some engineering prototypes.
Introduction
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NHTSA Initiated PCAM Research in 2011
Volpe – • Crash analyses and assess the potential safety benefits of PCAM technology• Completed • Final Report – Pending NHTSA Review (FY14 – 2nd Quarter)
CAMP – GM, Ford, Mercedes-Benz, Continental, and Delphi• Develop preliminary test methods (Scenarios, Mannequins, Motion Control,
etc.)• Completed• Final Report - Pending NHTSA Review (FY14 – 2nd Quarter)
NHTSA Internal Research – (ongoing)• Baseline PCAM equipped production vehicles. • Further Refinement of Test Scenarios, Mannequins, Motion Control, etc. • Development of Objective Test Procedures
PCAM – Pedestrian Crash Avoidance/Mitigation
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What is Pedestrian Crash Avoidance/Mitigation?
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CAMP
PCAM* Slide from CAMP PCAM
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4,432 Pedestrian Fatalities (14% of total fatalities)
Crash Problem2011 Data- Traffic Safety Facts (DOT HS 811 748 – 8/2013)
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Pedestrians Killed 2010 (% Killed) 2011 (% Killed)
Rural 27% 27%Urban 73% 73%
Intersection 21% 19%Non-Intersection 68% 70%Other 10% 10%
Daytime 32% 30%Nighttime 68% 70%
Clear/Cloudy 88% 88%Rain 9% 9%Snow 1% 1%Fog 1% 1%
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Top 20 pre-crash scenarios by functional years lost (FYL) can be grouped into 4 general scenarios (N = 139,000 Crashes)
Test ScenariosVolpe Analysis – (2005–2009 GES Data)
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Scenario Cases % Total FYL Fatalities %Fatalities **(67% of the top 20
scenarios)
S1 115,000 84% 7,000 88%
S2 2,000 1% 16 <1%
S3 9,000 1% 0 0%
S4 13,000 10% 1,000 12%
S1 S2 S3 S4
** Note: Top 20 Scenarios represent 67% of estimated pedestrian fatalities
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Test Matrix
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• Some vehicles did not perform all planned combinations due to observed sensing/performance limitations.
• Limited number of Dynamic Brake Support (DBS) tests were conducted.• Conducted 7 different False Positive tests that will not be discussed today.
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Vehicle Production Sensor Technology FCW CIB/AEB
Vehicle 1 N RADAR and StereoCamera
Visual and Audible
Up to 0.6g of Braking
Vehicle 2 N RADAR and Mono Camera
Visual and Audible
Up to Full Braking
Vehicle 3 N Stereo Camera Haptic andAudible
Up to Full Braking
Vehicle 4 Y RADAR, LIDAR, and Mono Camera
Visual and Audible
Up to Full Braking
Vehicle 5 Y Stereo Camera Visual and Audible
Up to Full Braking
Test Vehicles
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Vehicles 1 – 3 were supplied by member of CAMPVehicles 4 – 5 were purchased from a car dealer by NHTSA
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S1 Scenario – All Tests
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0 5 10 15 20 25 30
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Vehicle Speed at TTC = 4 sec (mph)
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S1/10mph/walkS1/25mph/walkS1/10mph/runS1/25mph/runS1/10-25mph/stationaryS4/10-25mph/stationary
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S1 Scenario – 10 MPH SV – Ped Walk – R to L
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Test Run
S1: SV=10MPH Ped=Walk
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S1 Scenario – 25 MPH SV – Ped Walk – R to L
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S1: SV=25MPH Ped=Walk
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S1 Scenario – 10 MPH SV – Ped Run – R to L
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S1 Scenario – 25 MPH SV – Ped Run – R to L
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S1 Scenario – 10 MPH SV – Ped Walk – R to L OBSTRUCTED – 1.3s reveal time
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S1: SV=10MPH Ped=Walk Obstructed(1300ms)
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S1 Scenario – 25 MPH SV – Ped Walk – R to L OBSTRUCTED – 1.3s reveal time
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S1: SV=25MPH Ped=Walk Obstructed(1300ms)
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S1 Scenario – 10 MPH SV – Ped Run – R to LOBSTRUCTED – 1.3s reveal time
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S1: SV=10MPH Ped=Run Obstructed(1300ms)
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S1 Scenario – 25 MPH SV – Ped Run – R to LOBSTRUCTED – 1.3s reveal time
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Test Run
S1: SV=25MPH Ped=Run Obstructed(1300ms)
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Test Data Shows:• PCAM can avoid and mitigate many common pedestrian
crashes.• PCAM does not prevent all pedestrian crashes.
• PCAM data shows better performance for slower moving pedestrians • “Running” Pedestrian scenarios are challenging for all PCAM
systems tested.• Obstructed tests with short reveal times (1300msec) can
be challenging for PCAM systems. • Obstructed tests with longer reveal times (2700msec) were no
different than unobstructed tests.• Performance differences can be observed using the
objective test conditions described in this presentation.
Observations
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• Test additional production vehicles with PCAM. • Refine test maneuvers.• Refine a PCAM target population to assess system
effectiveness.• Further develop adult and child mannequin designs.
• Discussed in Crash Avoidance I – Near Term Technologies Session
Future Research
Paper # (if applicable) 20