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Method for quantitatively evaluating automobile head-on collision waveform strength

A frontal collision and quantitative evaluation technology, applied in design optimization/simulation, complex mathematical operations, instruments, etc., can solve difficult problems such as the correlation and severity of occupant injuries, and achieve the effect of reducing difficulty and development cost

Active Publication Date: 2020-07-10
CHINA AUTOMOTIVE TECH & RES CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, under the existing technical conditions, the evaluation criteria for occupant protection are all based on the damage value of the dummy in the collision, and the evaluation object is the whole body structure and restraint system, so it is difficult to directly quantify the correlation between the body structure and the occupant injury. sex and seriousness

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  • Method for quantitatively evaluating automobile head-on collision waveform strength
  • Method for quantitatively evaluating automobile head-on collision waveform strength
  • Method for quantitatively evaluating automobile head-on collision waveform strength

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Embodiment Construction

[0042] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0043] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention provides a method for quantitatively evaluating automobile head-on collision waveform strength. The method comprises the steps of: establishing a model and a differential equation, obtaining and processing automobile body acceleration data, obtaining a solution of the differential equation, and obtaining an x-direction acceleration severity curve ASP and an acceleration severity index ASI of passengers in an automobile. The invention discloses a method for quantitatively evaluating automobile head-on collision waveform strength. Acceleration data of a vehicle body can be collected and processed; model establishment and calculation are carried out, the automobile head-on collision waveform intensity is directly quantified without depending on an existing method for carrying out evaluation by depending on a dummy damage value in an automobile in collision, quantitative evaluation is provided for the safety performance of an automobile body structure in the early stage of automobile development, and the difficulty and development cost of passenger restraint system matching in the later stage are reduced.

Description

technical field [0001] The invention belongs to the field of automobile collision safety, and in particular relates to a method for quantitatively evaluating the waveform intensity of automobile frontal collision. Background technique [0002] Automobile crash test is the most direct and effective test and analysis method to verify the safety performance of automobiles. The safety performance of automobiles is evaluated by assessing the protection of occupants in automobile collision tests. The main factors affecting the safety of the car include the body structure and the occupant restraint system. system, according to the acceleration level of the vehicle body, match the appropriate restraint system parameters such as airbags and seat belts, so as to achieve the optimal solution for occupant protection performance. The acceleration of the vehicle body is an important parameter that directly reflects the performance of the vehicle body structure during the collision proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/13G06F30/20G06F30/15G06F119/14
CPCG06F17/13
Inventor 刘志新娄磊史永万马伟杰肖广宇武永强
Owner CHINA AUTOMOTIVE TECH & RES CENT
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