Method for Estimating Vehicle-Specific Frontal Stiffness Values in the Absence of an Applicable Crash Test Using Methodically-Distilled Data from the NHTSA Crash Database (Phase 1) Delta-V Experts

Format:

Conference/Event

Author/Creator:

Gaffney, Gaffney, author.

Contributor:

Elston, Arky

Josevski, Nikola

Pok, Tandy

Richardson, Shane

Sandvik, Andreas

Winter, Blake

Conference Name:

18th Asia Pacific Automotive Engineering Conference (2015-03-10 : Melbourne, Australia)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2015

Summary:

AbstractWhen a vehicle is involved in a collision, often a question arises regarding the vehicle's pre-crash velocity. In modern vehicles, velocity data can typically be extracted from the vehicle's Electronic Data Recorder (EDR) via OEM or aftermarket diagnostic tools. However, many modern vehicles - and particularly vehicles operated and/or manufactured in Australia - are not equipped with downloadable EDRs. In these cases, the pre-crash velocity must be calculated based on physical forensic evidence.One method for estimating collision velocity is the crush-energy method, wherein the vehicle is modeled as a spring system. The velocity is then estimated based on the vehicle-specific stiffness properties and on the post-collision crush profile. The vehicle-specific stiffness properties must be derived from a comparable staged crash test. Often, no such crash test exists.This paper documents a method wherein the stiffness of the vehicle is estimated using compendium data which has been methodically-distilled from the NHTSA crash test database. An analysis is presented which identifies key parameters that should be considered when distilling the data, including vehicle type, vehicle vintage, vehicle mass and vehicle wheelbase

Notes:

Vendor supplied data

Publisher Number:

2015-01-0027

Access Restriction:

Restricted for use by site license