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SHAWN P. RAY, PE, CASE FORENSICS STEVEN M. SCHORR, PE, DJS ASSOCIATES, INC. Emerging Trends in New Technology: Have you Kept Up With the State-of-the-Art
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PROFESSIONAL ENGINEER ACTAR FULL ACCREDITATION ASE CERTIFIED MASTER TECHNICIAN CFEI, CVFI & CFII Shawn P. Ray, P.E. N EW V EHICLE T ECHNOLOGY
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T HE RIGHT TOOLS AND KNOWLEDGE ?
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D O YOU HAVE THE RIGHT TOOLS ?
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D O YOU KNOW WHERE YOU ARE GOING ?
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New Vehicle Technology
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WHAT IS IT? WHAT IS AVAILABLE? HOW DO YOU RETRIEVE IT? HOW DOES IT AFFECT COLLISION RECONSTRUCTION? WHAT ARE ADVANTAGES/DISADVANTAGES FOR YOU? N EW V EHICLE T ECHNOLOGY
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BY EXAMPLE: SOME MERCEDES MODELS CAN : ADJUST SEAT BACK POSITION AND HEADRESTS PRETENSION SEATBELTS AND RELEASE EXCESS TENSION PREPARE OR APPLY THE BRAKES SHUT OFF FUEL PUMP, TURN OFF ENGINE DISCONNECT BATTERY AND ALTERNATOR CLOSE WINDOWS OR SUNROOF DEPLOY ROLL-BAR RETRACT STEERING COLUMN DEPLOY ONE OR MULTIPLE AIRBAGS (NEW LEXUS HAS 10 AIRBAGS!) N EW V EHICLE T ECHNOLOGY
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HOW DO YOU RETRIEVE IT? AIRBAG MODULE (THE BLACK BOX) ON BOARD DATA (OBDII) SELF DIAGNOSTIC; ERROR CODES REMOVAL OF THE “COMPUTER OR MODULE” (FOR CRASHED VEHICLES) DEALER PROPRIETARY SOFTWARE N EW V EHICLE T ECHNOLOGY
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E LECTRONICS & B ATTERY P OWER The average laptop Lithium Ion battery pack contains 12 cells
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T ESLA R OADSTER
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D ATA L OGGERS Teen Drivers High Value Vehicles Sports Cars High Risk Insured
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EDR (EVENT DATA RECORDER) AIRBAG MODULE SDM (sensing and diagnostic module) RCM (restraint control module) T HE “B LACK B OX ”
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EDR / SDM
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Two types of data DEPLOYMENT DATA Airbag or airbags fired NON-DEPLOYMENT DATA System enable but did not warrant deployment A IRBAG S YSTEM
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D O YOU HAVE THE RIGHT TOOLS ? …K NOWLEDGE ?
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P RE D EPLOYMENT D ATA
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D EPLOYMENT E VENT
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P OTENTIAL U SES IssueData Injury- speed change (impact severity) Seat belt- driver’s seat belt status - speed change Liability- pre-crash speed, braking, throttle Fraud- pre-crash speed, braking, throttle Airbag- airbag status - airbag deployment timing - speed change
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P OTENTIAL U SES
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HOW DOES VEHICLE DATA AFFECT COLLISION RECONSTRUCTION? Verification Supporting evidence Confirm or refute statement/testimony N EW V EHICLE T ECHNOLOGY
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KNOW WHERE YOU ARE GOING ?
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WHAT ARE ADVANTAGES … & DISADVANTAGES FOR YOU? Good first impression (not subjective or emotional) Very specific hard data (once confirmed) Clarify situation Easy to obtain…but also easy to misuse N EW V EHICLE T ECHNOLOGY
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CDR IS FAST & EFFECTIVE CDR DATA DOESN’T REPLACE GOOD INVESTIGATION DATA IS DATA It is not good or bad, it is just data Admissibility should be handled like any other electronic data (verification, calibration, etc) A F EW R EMINDERS
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COLLISION / ACCIDENT RECONSTRUCTION? Evaluation of an accident using scientific principles to determine how the accident or parts of the accident occurred. More information enhances the reconstruction C OLLISION R ECONSTRUCTION
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