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Toyota has added a small female and a large male to its family of digital crash test dummies.

Known as THUMS (Total HUman Model for Safety), these virtual humans deliver crash-test results in much greater detail than is achievable with conventional crash-test dummies.

The new models of a 153cm tall female and a 189cm male will join the existing 179cm average-build adult male in THUMS.

All three models come in two types - a vehicle occupant and a pedestrian - bringing the total number of models to six.

It is now possible to take into account different body sizes when conducting analyses of internal injuries caused by car accidents.

This latest software upgrade is the result of a co-operative development arrangement with Toyota Central R&D Labs, Inc, universities and other research institutes to make detailed measurements of the human body's internal structure using a high-precision CT (computed tomography) scanner.

By creating precise models of various internal organs, including their positions and how they interconnect, Toyota was able to develop a virtual human model containing approximately 14 times more information than the previous version.

This increased detail allows finer understanding of how damage is inflicted on internal organs during a collision.

Beginning this (northern) summer, the small female and large male models will be marketed to universities through Toyota Technical Development Corporation and to private companies through consultant, JSOL Corporation.

As part of its vision to eliminate traffic fatalities and injuries, Toyota will apply the results of THUMS tests to develop safer vehicles.

Toyota has plans to add an elderly person and a child model to make an even more diverse range of testing possible.

THUMS allows highly detailed analysis of bone fractures, severed ligaments, etc, by simulating many characteristics of the human body - ranging from the shape of the body to its skeletal structure and skin.

Toyota began developing THUMS in 1997 in co-operation with Toyota Central R&D Labs, Inc.

Version 1 was completed and commercially launched in 2000. Version 2 followed in 2004, adding a face and bones to the model. Version 3, launched in 2006, added a precise brain model. Version 4, with detailed modelling of internal organs, was completed and released in 2010.


For more information, contact:

Mike Breen
Manager Public Relations
Tel: (02) 9710 3341
Mob: 0418 447 064

THUMS Version 4 Series (from the centre outwards: small female, average male and large male)