Toyota’s technical manager of the firms R&D Safety Research operations division, Sabine Compigne, added that in automated vehicles special attention must be paid to ensure that the pelvis remains in the seat at the time of a crash. The programme also claims to come with more accurate rendering of key body parts including the pelvis, abdominal organs, spine and ribs. Toyota’s model of the human body in a car To this end, its software programme, THUMS version 7, claims to predict the impact on human bones, organs and muscles when occupants are in a reclined position and reproduce how people will change their position and brace muscles in an emergency braking and or steering situation. Occupants of automated driving systems are more likely to sit in a relaxed, reclined position, causing the body to react differently with the seat and restraint systems, Toyota said.Īccording to the carmaker, even when passengers are sitting upright, the change in posture can lead to “significantly different effects in the event of an impact, causing different types of injuries. Toyota has added new features to its long-established crash test simulation software to take account of the changes in people’s postures while travelling in automated vehicles.Īccording to the Japanese motor company, the latest version of its software programme Total Human Model for Safety (THUMS) comes with improved modelling for men, women and children and has been designed to give a more accurate prediction of what will happen in a crash.
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