Toyota City, Japan – Toyota has developed a new version of its THUMS (Total Human Model for Safety) computer simulation, adding detailed models of internal organs to enable injury analysis to a wider range of organs.

The organ models are added to the previous version’s models of bones and the brain. Internal organs are particularly vulnerable during collisions, with approximately half of all injuries sustained during automobile crashes being to the organs.

To develop the new version, Toyota worked with outside research institutes, including universities, and used a high-precision computed tomography scanner to make detailed measurements of the internal structure of the body. By creating precise models of various internal organs, as well as the positions of and relations between those organs, the researchers created a virtual human model containing approximately 14 times more information than the previous model. As a result, the new version can simulate in greater detail how areas of the torso deform and internal organs are damaged in crashes.

Toyota intends to use THUMS to develop and improve safety devices such as seatbelts and airbags, plans to add models of a small female and large male to its virtual human model lineup, and will also offer the software for sale.

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