CN107967394B - Pre-development checking method for passenger protection during side collision of door inner protection plate - Google Patents
Pre-development checking method for passenger protection during side collision of door inner protection plate Download PDFInfo
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- CN107967394B CN107967394B CN201711304390.1A CN201711304390A CN107967394B CN 107967394 B CN107967394 B CN 107967394B CN 201711304390 A CN201711304390 A CN 201711304390A CN 107967394 B CN107967394 B CN 107967394B
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- G06F30/10—Geometric CAD
- G06F30/15—Vehicle, aircraft or watercraft design
Abstract
The invention discloses a pre-development checking method for protecting passengers during side collision of a door inner guard plate, which comprises the following steps: the designer confirms the state of the modeling data to be checked and confirms the accuracy of the relevant environmental data; a designer determines a seat position H point corresponding to a driver needing percentile according to the seat stroke determined by the selected seat module; automatically judging the geometric corresponding relation between the H point of the seat corresponding to the driver with the required percentile and the projection of the door guard plate, and if the geometric corresponding relation does not meet the preset standard, adjusting the position of the specific H point by a certain step length until the preset standard is met; the adjustment angle of the backrest of the seat and the geometric shape of the door guard plate are integrated, and the section is manufactured by adjusting the position of a specific H point by a corresponding H point of a percentile driver or a certain step length; arranging relevant sections, measuring the distance between the key part and the door guard plate modeling surface, and comparing the distance with an empirical value; if the requirements are not met, suggestions are given in the form of numerical values in the sections.
Description
Technical Field
The invention relates to the field of whole vehicle development and design, in particular to a pre-development checking method for passenger protection during side collision of a door inner guard plate.
Background
In the early stage of the development of the whole vehicle, basic evaluation needs to be carried out on the modeling scheme of the front door guard plate and the rear door guard plate for feedback, so that project delay caused by large modeling change in the later stage of the project is avoided. Particularly, in the early concept development stage of an automobile, a data model is usually required to be built to simulate and calculate the side collision safety of the automobile, the existing method estimates a new automobile model by modifying the structural data of the existing automobile model and building a calculation model, but due to the large frequent change of the early model, if the model is changed every time, the structural data is built and the safety of the automobile is simulated and calculated, so that the method is time-consuming and labor-consuming. In addition, the method needs to be relatively simplified on the basis of numerous vehicle parameters, errors are inevitably generated in the simplifying process, limited and inherent structural data forms exist, the modeling intention of the existing door guard plate cannot be reflected, and meanwhile, the modeling needs abundant experience and consumes long time, so that the speed of modeling change cannot be met.
Disclosure of Invention
In order to solve the problems in the prior art, the embodiment of the invention provides a pre-development checking method for protecting passengers during side collision of a door inner protection plate. The technical scheme is as follows:
there is provided a pre-development verification method of occupant protection in a side impact of a door inner panel, the method including:
the designer confirms the state of the modeling data to be checked and confirms the accuracy of the relevant environmental data;
a designer determines a seat position H point corresponding to a driver needing percentile according to the seat stroke determined by the selected seat module;
automatically judging the geometric corresponding relation between the H point of the seat corresponding to the driver with the required percentile and the projection of the door guard plate, and if the geometric corresponding relation does not meet the preset standard, adjusting the position of the specific H point by a certain step length until the preset standard is met;
the adjustment angle of the backrest of the seat and the geometric shape of the door guard plate are integrated, and the section is manufactured by adjusting the position of a specific H point by a corresponding H point of a percentile driver or a certain step length;
arranging relevant sections, measuring the distance between the key part and the door guard plate modeling surface, and comparing the distance with an empirical value; if the requirements are not met, suggestions are given in the form of numerical values in the sections.
Preferably, synthesize seat back angle of adjustment and door protection plate geometry, respectively through corresponding percentile driver H point or will adjust the position of specific H point with certain step length, carry out the section preparation, include:
selecting confirmation check data;
selecting a seat adjusting range;
selecting a specific point in the seat stroke, judging whether the specific point is projected on the door guard plate, if so, selecting another point on the door guard plate according to a specified method, carrying out corresponding section interception, and carrying out key data measurement; if not, giving a specified step length according to experience until a specific point is projected on the door guard plate;
comparing the empirical values to judge to obtain a judgment result;
and outputting the result in a form of a table file and storing the corresponding section.
Preferably, the cross section is an X-section and/or an oblique cross section.
Preferably, the door panel includes a front door panel and a rear door panel.
Preferably, the steps are performed using CATIA software and/or self-programming software.
Preferably, the profiling is done according to the seat adjustment range and the door panel geometry.
The technical scheme provided by the embodiment of the invention has the following beneficial effects:
according to the pre-development checking method for protecting passengers during side collision of the door inner protective plate, firstly, a designer confirms the state of modeling data to be checked and confirms the accuracy of relevant environmental data; a designer determines a seat position H point corresponding to a driver needing percentile according to the seat stroke determined by the selected seat module; automatically judging the geometric corresponding relation between the H point of the seat corresponding to the driver with the required percentile and the projection of the door guard plate, and if the geometric corresponding relation does not meet the preset standard, adjusting the position of the specific H point by a certain step length until the preset standard is met; the adjustment angle of the backrest of the seat and the geometric shape of the door guard plate are integrated, and the section is manufactured by adjusting the position of a specific H point by a corresponding H point of a percentile driver or a certain step length; arranging relevant sections, measuring the distance between the key part and the door guard plate modeling surface, and comparing the distance with an empirical value; if the requirements are not met, suggestions are given in the form of numerical values in the sections. According to the method, by depending on long-term accumulated experience and data, early-stage check and inspection of side impact safety related factors are provided in a mode of multiple concept sections, judgment and modification suggestions are given to analysis data in a numerical mode, dependency on a data structure is reduced as much as possible, the influence of errors is comprehensively considered by taking a large amount of experimental data as the basis for related requirements, reasonable suggestions are given, reasonable constraint on a modeling scheme in the early stage of vehicle development is achieved, and large-scale change of the door guard plate modeling caused by later-stage side impact simulation calculation and unqualified vehicle test is avoided, so that cost increase and project drag are avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flow chart of a pre-development checking method for occupant protection during side impact of a door inner panel according to an embodiment of the present invention;
FIG. 2 is a schematic view of an X section taken during a section manufacturing process provided by an embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of a cross-sectional manufacturing process provided by an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view illustrating a process for pre-development checking of occupant protection during side impact of the door inner panel according to an embodiment of the present invention;
FIG. 5 shows an output cross-section and a desired measurement position of a cross-section manufacturing process according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to the pre-development checking method for passenger protection during side impact of the door inner protective plate, by depending on long-term accumulated experience and data, early-stage check and check on side impact safety related factors in the form of a plurality of conceptual sections are provided, judgment and modification suggestions are given to analysis data in a numerical form, dependency on a data structure is reduced as much as possible, a large amount of experimental data are taken as the basis for related requirements, the influence of errors is comprehensively considered, reasonable suggestions are given, reasonable constraint on a modeling scheme in the early stage of vehicle development is achieved, large-scale change of the door protective plate modeling caused by later-stage side impact simulation calculation and unqualified vehicle test is avoided, and accordingly cost increase and project drag are avoided. Therefore, in view of the advantages, the method can be widely applied to the field of various vehicle early-stage development designs.
FIG. 1 is a schematic flow chart of a pre-development checking method for occupant protection during side impact of a door inner panel according to an embodiment of the present invention. As shown in fig. 1, the pre-development checking method for occupant protection during side impact of the door inner panel according to the embodiment of the present invention includes the following steps:
101. the designer confirms the state of the modeling data to be checked and confirms the accuracy of the relevant environmental data;
102. a designer determines a seat position H point corresponding to a driver needing percentile according to the seat stroke determined by the selected seat module;
103. dynamically judging the geometric corresponding relation between the H point of the seat corresponding to the driver needing percentile and the projection of the door guard plate, and if the geometric corresponding relation does not meet the preset standard, adjusting the position of the specific H point by a certain step length until the preset standard is met;
104. the adjustment angle of the backrest of the seat and the geometric shape of the door guard plate are integrated, and the section is manufactured by adjusting the position of a specific H point by a corresponding H point of a percentile driver or a certain step length; preferably, the profiling is done according to the seat adjustment range and the door panel geometry. Preferably, the cross-section taken is an X-section and/or an oblique section. As shown in fig. 2-3, the distances a, b in the X-section and the distances c, d in the diagonal section are the values to be measured at the respective positions.
In addition, preferably, fig. 4 is a schematic cross-sectional process flow diagram in the pre-development checking method for occupant protection during side impact of the door inner panel according to the embodiment of the present invention, and as shown in fig. 4, the cross-sectional process in the pre-development checking method for occupant protection during side impact of the door inner panel according to the embodiment of the present invention includes the following steps:
selecting confirmation check data;
selecting a seat adjusting range;
selecting a specific point in the seat stroke, judging whether the specific point is projected on the door guard plate, if so, selecting another point on the door guard plate according to a specified method, carrying out corresponding section interception, and carrying out key data measurement; if not, giving a specified step length according to experience until a specific point is projected on the door guard plate;
comparing the empirical values to judge to obtain a judgment result;
and outputting the result in a form of a table file and storing the corresponding section.
105. Arranging relevant sections, measuring the distance between the key part and the door guard plate modeling surface, and comparing the distance with an empirical value; if the requirements are not met, suggestions are given in the form of numerical values in the sections. Fig. 5 shows an output cross section and a position to be measured in the cross section manufacturing process according to the embodiment of the present invention, and exemplarily, as shown in fig. 5, the position to be measured of the output cross section includes a position (r), a position (c), a position (r), and a position (r).
Preferably, the door panel applied to the pre-development checking method for protecting the passengers during side impact of the door inner panel provided by the embodiment of the invention comprises a front door panel and a rear door panel.
Preferably, the pre-development checking method for occupant protection during side impact of the door inner guard plate provided by the embodiment of the invention utilizes CATIA software and/or self-programming software to execute the steps. The self-programming software is corresponding software designed according to the steps of the method, and can be programmed in any possible way in the prior art based on the inventive concept, and the CATIA software is also any possible kind of software in the prior art, and the embodiment of the invention does not particularly limit the self-programming software and the CATIA software.
All the above-mentioned optional technical solutions can be combined arbitrarily to form the optional embodiments of the present invention, and are not described herein again.
In summary, in the pre-development checking method for protecting the occupant during the side impact of the door inner panel provided by the embodiment of the invention, firstly, a designer confirms the state of modeling data to be checked, and confirms the accuracy of relevant environmental data; a designer determines a seat position H point corresponding to a driver needing percentile according to the seat stroke determined by the selected seat module; automatically judging the geometric corresponding relation between the H point of the seat corresponding to the driver with the required percentile and the projection of the door guard plate, and if the geometric corresponding relation does not meet the preset standard, adjusting the position of the specific H point by a certain step length until the preset standard is met; the adjustment angle of the backrest of the seat and the geometric shape of the door guard plate are integrated, and the section is manufactured by adjusting the position of a specific H point by a corresponding H point of a percentile driver or a certain step length; arranging relevant sections, measuring the distance between the key part and the door guard plate modeling surface, and comparing the distance with an empirical value; if the requirements are not met, suggestions are given in the form of numerical values in the sections. According to the method, by depending on long-term accumulated experience and data, early-stage check and inspection of side impact safety related factors are provided in a mode of multiple concept sections, judgment and modification suggestions are given to analysis data in a numerical mode, dependency on a data structure is reduced as much as possible, the influence of errors is comprehensively considered by taking a large amount of experimental data as the basis for related requirements, reasonable suggestions are given, reasonable constraint on a modeling scheme in the early stage of vehicle development is achieved, and large-scale change of the door guard plate modeling caused by later-stage side impact simulation calculation and unqualified vehicle test is avoided, so that cost increase and project drag are avoided.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. A pre-development check method for occupant protection in a side impact of a door inner panel, the method comprising:
the designer confirms the state of the modeling data to be checked and confirms the accuracy of the relevant environmental data;
a designer determines a seat position H point corresponding to a driver needing percentile according to the seat stroke determined by the selected seat module;
automatically judging the geometric corresponding relation between the H point of the seat corresponding to the driver with the required percentile and the projection of the door guard plate, and if the geometric corresponding relation does not meet the preset standard, adjusting the position of the specific H point by a certain step length until the preset standard is met;
the adjustment angle of the backrest of the seat and the geometric shape of the door guard plate are integrated, and the section is manufactured by adjusting the position of a specific H point by a corresponding H point of a percentile driver or a certain step length;
arranging relevant sections, measuring the distance between the key part and the door guard plate modeling surface, and comparing the distance with an empirical value; if the requirements are not met, suggestions are given in the form of numerical values in the sections.
2. The method of claim 1, wherein integrating the seat back adjustment angle and the door panel geometry, profiling by corresponding percentile driver H-points or positions of specific H-points to be adjusted by a step size, respectively, comprises:
selecting confirmation check data;
selecting a seat adjusting range;
selecting a specific point in the seat stroke, judging whether the specific point is projected on the door guard plate, if so, selecting another point on the door guard plate according to a specified method, carrying out corresponding section interception, and carrying out key data measurement; if not, giving a specified step length according to experience until a specific point is projected on the door guard plate;
comparing the empirical values to judge to obtain a judgment result;
and outputting the result in a form of a table file and storing the corresponding section.
3. The method according to claim 1, wherein the cross-section is an X-section and/or an oblique cross-section.
4. The method of claim 1, wherein the door trim comprises a front door trim and a rear door trim.
5. Method according to claim 1, characterized in that the steps are performed using CATIA software and/or self-programming software.
6. The method of claim 1, wherein the profiling is based on seat adjustment range and door trim geometry.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711304390.1A CN107967394B (en) | 2017-12-11 | 2017-12-11 | Pre-development checking method for passenger protection during side collision of door inner protection plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711304390.1A CN107967394B (en) | 2017-12-11 | 2017-12-11 | Pre-development checking method for passenger protection during side collision of door inner protection plate |
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| CN107967394A CN107967394A (en) | 2018-04-27 |
| CN107967394B true CN107967394B (en) | 2021-09-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111737781B (en) * | 2019-03-20 | 2023-11-24 | 上海汽车集团股份有限公司 | Capia secondary development-based general layout diagram generation method and device |
| CN114580082B (en) * | 2022-03-11 | 2024-04-12 | 东风汽车股份有限公司 | Electric installation checking method for comfort level of driving seat of light commercial vehicle |
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| CN105711512A (en) * | 2016-03-12 | 2016-06-29 | 丹阳市德全汽车饰件有限公司 | Automobile front door fender assembly |
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