A driver injury bionic model with the fiftieth percentile male body sign of China and a construction method thereof

By defining the driver's key angles and the physiological curvature of the spine, a biomimetic model conforming to human anatomy is constructed, solving the problem of the lack of standardized definition of driver posture and improving driver injury prediction and safety protection design.

CN122369331APending Publication Date: 2026-07-10TIANJIN UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TIANJIN UNIV OF SCI & TECH
Filing Date
2026-03-24
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

The lack of effective standardized methods in the current technology to define and quantify driver posture characteristics, especially the sitting posture specifications in different driving situations, leads to a high risk of driver injury in traffic accidents. Moreover, existing research focuses on post-collision injury assessment and lacks dynamic research and data collection methods.

Method used

This paper presents a biomimetic model of injury to a male driver in the 50th percentile in China. By defining key angles and spinal physiological curvatures of the driver in the driving state, including head angle, trunk angle, and upper arm angle, a biomimetic model that conforms to human anatomy is constructed. The model is then adjusted and meshed using ANSA software to establish a highly biomimetic finite element model.

Benefits of technology

It achieves precise digital representation of driver posture, and has made a breakthrough in constructing a spinal biomechanical model that conforms to the physiological characteristics of sitting posture. It provides high-confidence damage prediction data and improves the efficiency of numerical analysis and safety protection design in the field of automotive passive safety.

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Abstract

This invention discloses a biomimetic model of driver injury based on the physical characteristics of a Chinese male at the 50th percentile. The model is based on a biomimetic model of a car occupant with the physical characteristics of a Chinese male at the 50th percentile. The occupant biomimetic model is modified and adjusted according to the driver's sitting posture while driving, and key angles of the human body structure and the physiological curvature of the spine are defined. The key angles include: head angle, trunk angle, upper arm angle, forearm angle, left and right hip angles, left and right knee angles, left and right leg angles, and ankle angle. The physiological curvature of the spine includes: cervical curvature, full thoracic curvature, upper thoracic curvature, lower thoracic curvature, and lumbar curvature. This invention also discloses a method for constructing the above-mentioned biomimetic model of injury, which has wide application scenarios.
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