Project: Virtual Testing for Extended Passive Safety: VITES (CIC)

Reference: S0052/VC

Last update: 23/06/2004 16:06:11

Objectives

The project objectives are to:

* define a general procedure for dummy model validation and for rating comparisons between numerical and experimental results of different test conditions;
* define a general development and validation procedure for vehicle and impact barrier models and use the procedure to evaluate and improve the models;
* generate the experimental reference cases to better understand the behaviour of barrier material, improve the modelling and help develop guidelines for model construction;
* validate the predictive capabilities of virtual testing using full car crash test models and compartment models, both with dummies and restraint systems, under different scenarios; and
* define a method that can be used to calculate the overall injury risk for a car occupant.

Description

Current regulatory and consumer tests for cars are based on a small number of precisely defined tests using a 50th percentile dummy seated in an average driving position. As a result, there is a concern that car designs may be optimised to protect their occupants under this limited range of test conditions, with the result that occupants may not be as well protected in other, non-tested conditions including lower severity crashes.

One solution to the problem would be to increase the number of tests, but it is considered impractical to demand a sufficiently wide range of full-scale crash tests to account for the full range of potential crash conditions. This matter may, however, be addressed by virtual testing.

Virtual testing of vehicles using computer models is already an essential part of the design process. So much so that it is unlikely that a vehicle would pass the current frontal and side impact regulations, or receive a high EuroNCAP rating, without the manufacturer carrying out a lengthy process of development including virtual testing. Virtual testing is therefore an existing and rapidly developing technology.

Contractor(s)

Cranfield Impact Centre Ltd
Wharley End, Cranfield, Bedfordshire, MK43 0JR
+44 (0)1234 750111

Contract details

Cost to the Department: £56,264.00

Actual start date: 16 July 2001

Actual completion date: 30 April 2004

Publication(s)

G3RD-2000-00312. Virtual Testing for Extended Vehicle Passive Safety (VITES). Mid Term Assessment Report 2001 to 2002 (EC Project GRD1-2000-25655)
Author: VITES Partners
Publication date: 20/09/2002
Unpublished
Source: Contact: Bob.Moran@dft.gsi.gov.uk

G3RD-2000-00312. Virtual Testing for Extended Vehicle Passive Safety (VITES). Final Technical Report 2001-2004 (EC Project GRD1-2000-25655)
Author: VITES Partners
Publication date: 31/03/2004
Unpublished
Source: Contact Bob.Moran@dft.gsi.gov.uk

Summary of results

  1. The project delivered a report proposing virtual tests that could be performed in conjunction with, and validated against, regulatory tests on any given model of vehicle. In addition, a demonstration procedure was produced, including all the steps and requirements for acceptation and application of a virtual test procedure.

    The procedures developed within the project enhance the reliability of virtual testing and improve the quality of methods and products. The status of virtual testing in support of current regulated test procedures has been enhanced. This project contributes towards the acceptance of virtual testing as part of "normative" procedures for passive safety evaluation. Steps needed for acceptance of virtual testing in regulations have been taken into account.