Automobile seat neck damage identification method and system

Abstract

The invention relates to an automobile seat neck damage identification method and system. The automobile seat neck damage identification method comprises steps of arranging a first accelerometer, a second accelerometer and a third accelerometer in a seat whiplash experiment, calculating a first moment a maximum neck damage index occurs according to a local X direction accelerated speed time course curve measured by the first accelerometer and the second accelerometer, obtaining a time course curve of a backward displacement of a dummy relative to a seat basin through coordinate conversion and integration conversion according to a global X direction accelerated speed time course curve measured by the third accelerometer and the first accelerometer, determining the displacement of the dummy relative to the seat basin at the first moment according to the backward displacement time course curve, determining a rotation angle of a seat back at a first moment through shooting photos by a shooting device and determining the position of the dummy relative to the back seat at the first moment according to the backward displacement and the rotation angle. The automobile seat neck damage identification method and system provide the basis to the neck protection of the automobile seat.

Description

technical field [0001] The invention belongs to the technical field of automobile safety tests, and in particular relates to a method and system for identifying neck damage of an automobile seat. Background technique [0002] In automobile rear-end collision accidents, 78.2% of the injuries occurred in the neck, and most of these neck injuries were classified as minor injuries. However, due to the lack of understanding of the mechanism of neck injuries, the high incidence of neck injuries and the long-term Symptoms cause patients to suffer great pain and bring huge economic losses to society. Neck protection in rear-end collisions has become an urgent problem to be solved in various countries. For the neck protection of the occupant in a rear-end collision, the seat is the most closely related component to the neck injury, and the design of the seat safety directly affects the occupant's neck protection effect. [0003] In order to better evaluate the protective effect of ...

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Problems solved by technology

[0011] This method cannot be combined with whipping test data to quickly identify the chest T1 acceleration A at this moment T1P The reason for the high value, and through the method of computer simulation analysis, it also needs to invest a lot of manpower and time to complete the construction and verification of the model, and finally complete the scheme design, which requires a long cycle and cost

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