WO2002049872A2 - Procede et dispositif pour la realisation d'un siege de vehicule - Google Patents

Procede et dispositif pour la realisation d'un siege de vehicule Download PDF

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Publication number
WO2002049872A2
WO2002049872A2 PCT/EP2001/013478 EP0113478W WO0249872A2 WO 2002049872 A2 WO2002049872 A2 WO 2002049872A2 EP 0113478 W EP0113478 W EP 0113478W WO 0249872 A2 WO0249872 A2 WO 0249872A2
Authority
WO
WIPO (PCT)
Prior art keywords
upholstery
design model
cover
model
cushion
Prior art date
Application number
PCT/EP2001/013478
Other languages
German (de)
English (en)
Other versions
WO2002049872A3 (fr
Inventor
Jakob Schneider
Erhard Moser
Georg Jahn
Ludwig FÄRBER
Klaus Bekemeier
Original Assignee
Bayerische Motoren Werke Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayerische Motoren Werke Aktiengesellschaft filed Critical Bayerische Motoren Werke Aktiengesellschaft
Priority to JP2002551390A priority Critical patent/JP2004516086A/ja
Priority to EP01984744A priority patent/EP1343654A2/fr
Publication of WO2002049872A2 publication Critical patent/WO2002049872A2/fr
Publication of WO2002049872A3 publication Critical patent/WO2002049872A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/70—Upholstery springs ; Upholstery

Definitions

  • the invention relates to a method and a device for constructing a vehicle seat consisting of an upholstery body and an upholstery cover.
  • the basic problem in the development of an upholstered body is the reference forces which act on the upholstery body, which is usually designed as a foam part, due to the pressure of the upholstery cover.
  • the designer of a vehicle seat must therefore thicken the foam part or the upholstered body, particularly at taut points (e.g. bulge), in order to compensate for the foam indentation and thus to meet the design specification.
  • the method steps for the construction of the upholstery body and the method steps for the construction of the upholstery cover, in particular for producing the reference blanks are carried out in succession, ie also separately from one another. So far it is based on the target shape of a cushion body taking into account material characteristics, such as. B. reference material thickness, foam strength, etc., based on empirical values, initially constructed an unrelated and thus relaxed cushion body. If necessary, the fully constructed upholstered body is in the form of a 3D Model digitally provided as an input variable for the process steps for producing the upholstery cover. 2D reference blanks for the upholstery cover are calculated from this 3D model. The individual cover cuts of the upholstery cover are also calculated separately. A comfort assessment is carried out manually on the cushion body that is actually provided with the cushion cover. If the comfort is not acceptable, both the upholstery body and the upholstery cover usually have to be modified.
  • the exemplary embodiment relates to a vehicle seat, the cushion body of which is composed of an upper cushion and a lower cushion.
  • a vehicle seat the cushion body of which is composed of an upper cushion and a lower cushion.
  • Such a two-part design of an upholstered body with its advantages is already known, for example, from DE 197 51 091 A1.
  • a digital library 1 for the selection of a seat cushion adapted to the seat mechanism is shown schematically.
  • the output information from the digital library 1 is a digitized sub-cushion 2 for specifying a desired shape of the lower part of the cushion body.
  • the output information of a design computer is a digitized upper cushion 4 for specifying the desired shape of the upper part of the cushion body.
  • the digitized top cushion 4 can, for example, represent a surface that is also referred to as a parameterized A surface.
  • the digitized sub-cushion 2 can, for example, also represent an area which is also referred to as a parameterized B area.
  • the digitized upper cushion 4, the digitized lower cushion 2 the output information of a seam image generator 10 and material characteristics, such as. B.
  • the material thickness of the upholstery cover, the compliance of the upholstery cover, as well as the compliance or strength of the upholstery body in the form of a foam part, are input information from the design model generator 3.
  • Upholstered body digitized into a design model.
  • Such a digitized design model is in particular a 3-dimensional FE model, through which bodies in the form of finite elements can be visualized in 3 dimensions.
  • foam hardness zones with the cover sewn or non-sewn block foam pads, attachments and / or seat width adjustment options (as FE elements) can also be taken into account.
  • an advantageous cutting of the cushion cover is defined in the cut-out divider 5.
  • a reference fold analysis can also be carried out in a fold calculator 6, taking into account the design model. Does that fall Reference fold analysis negative, because, for example, too many folds or folds occur at undesired locations, a modification can be made in the blank divider 5. A modification elsewhere, e.g. B. on the design model or on the target shapes (not shown here). If the reference fold analysis is positive, the reference forces, that is to say the forces acting on the cushion body after the cover, an exact edge covering and the reference blank for the cutting machine 8 (cutter) are calculated in the cutting calculator 7.
  • the reference forces determined in the cutting calculator 7 of the upholstery process chain are input signals of the tool model generator 11 in the upholstery process chain.
  • the design model of the upholstery body including the corresponding material data, is virtually loaded with these reference forces. This gives the design model a geometry that is created by covering it with the upholstery. In the optimal case, especially when the reference forces approach zero, the design model is not changed. In reality, however, this is mostly not the case due to the partial intransigence of the upholstery cover.
  • the design model is modified depending on the reference forces, in particular thickened, in order to obtain a tool model which corresponds to the unrelated, that is to say relaxed, upholstery body and which, in the related state, that is to say with the upholstery cover, the predetermined target Shape of the upholstered body is preserved.
  • the modification of the design model in the tool model generator 11 is carried out using known FE methods.
  • the automatic modification process in the tool model generator 11 can be carried out iteratively several times until a predefined deviation of the virtually related tool model from the design model has been reached.
  • information such as e.g. B. the so-called H-point or the seat pressure distribution can be calculated to generate variables for comfort assessment.
  • the comfort assessment is negative, a change or a different selection of the digitized sub-cushion 2 can be carried out, for example.
  • the data of the tool model are e.g. B. passed on to an upholstered body milling cutter (or tool milling cutter) 13.
  • the unrelated upholstery body is produced in the upholstery milling cutter 13 and is finished in the reference unit 9 with the blanks obtained from the cutting machine 8.
  • Essential to the invention in this exemplary embodiment is, in particular, that the process chain cushion body and the process chain cushion cover mutually influence one another.
  • the cutting calculator 7 requires data from the design model generator 3 in the process body upholstery in the process chain upholstery cover.
  • the tool model generator 11 from the upholstery body process chain in turn requires the output signals reference forces of the cutting computer 7 from the upholstery process chain.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour la réalisation, au moyen d'un système informatique, d'un siège de véhicule constitué d'un corps rembourré et d'un revêtement. Le procédé selon l'invention comprend les étapes suivantes : introduction de données définissant une forme théorique du corps rembourré (corps rembourré théorique), numérisation du corps rembourré théorique en un modèle conceptuel, calcul de la coupe du revêtement en fonction du modèle conceptuel, calcul des forces de revêtement agissant sur le modèle conceptuel virtuellement équipé du revêtement, calcul de la modification nécessaire du modèle conceptuel en fonction des forces de revêtement afin de créer un modèle d'outil correspondant au corps rembourré sans revêtement et prenant, une fois revêtu, la forme théorique prédéfinie du corps rembourré.
PCT/EP2001/013478 2000-12-20 2001-11-21 Procede et dispositif pour la realisation d'un siege de vehicule WO2002049872A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2002551390A JP2004516086A (ja) 2000-12-20 2001-11-21 車両シートを設計するための方法及び装置
EP01984744A EP1343654A2 (fr) 2000-12-20 2001-11-21 Procede et dispositif pour la realisation d'un siege de vehicule

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10063505A DE10063505A1 (de) 2000-12-20 2000-12-20 Verfahren und Vorrichtung zur Konstruktion eines Fahrzeugsitzes
DE10063505.9 2000-12-20

Publications (2)

Publication Number Publication Date
WO2002049872A2 true WO2002049872A2 (fr) 2002-06-27
WO2002049872A3 WO2002049872A3 (fr) 2002-09-12

Family

ID=7667938

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/013478 WO2002049872A2 (fr) 2000-12-20 2001-11-21 Procede et dispositif pour la realisation d'un siege de vehicule

Country Status (4)

Country Link
EP (1) EP1343654A2 (fr)
JP (1) JP2004516086A (fr)
DE (1) DE10063505A1 (fr)
WO (1) WO2002049872A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115384369A (zh) * 2022-08-30 2022-11-25 广州吉中汽车内饰系统有限公司 一种汽车坐垫的生产方法
CN115422735A (zh) * 2022-08-30 2022-12-02 广州吉中汽车内饰系统有限公司 一种汽车坐垫的面套打板方法、装置、终端及存储介质

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014213559A1 (de) 2014-07-11 2016-01-14 Johnson Controls Gmbh Verfahren und Vorrichtung zur Anordnung grafischer Gestaltungselemente auf einem Sitzbezug eines Fahrzeugsitzes
DE102016120571A1 (de) * 2016-10-27 2018-05-03 MM-Technology GmbH Computergestütztes Konstruktionsdesign

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19751091A1 (de) 1997-11-18 1999-05-20 Bayerische Motoren Werke Ag Fahrzeugsitz mit modularem Polsteraufbau

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1211299B (it) * 1987-09-14 1989-10-12 Sicam Soc It Cuscini A Molle Metodo per la produzione di sedili di autoveicoli e sedile ottenuto mediante tale metodo
DE4415659C1 (de) * 1994-05-04 1995-11-30 Reimond Bernstein Vorrichtung und Verfahren zur Herstellung von Gegenständen auf der Grundlage von Daten, die aus einer optischen Erfassung eines Objektes ermittelt werden
DE19546199A1 (de) * 1994-12-09 1996-06-13 Dieter Brecht Vorrichtung zum Herstellen von Zuschnitten
US5603150A (en) * 1995-01-26 1997-02-18 J. R. Automation Technologies, Inc. Upholstering apparatus
US5867387A (en) * 1996-12-19 1999-02-02 Sagaz Industries, Inc. Method for sizing and distributing automotive vehicle components
US6144890A (en) * 1997-10-31 2000-11-07 Lear Corporation Computerized method and system for designing an upholstered part

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19751091A1 (de) 1997-11-18 1999-05-20 Bayerische Motoren Werke Ag Fahrzeugsitz mit modularem Polsteraufbau

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115384369A (zh) * 2022-08-30 2022-11-25 广州吉中汽车内饰系统有限公司 一种汽车坐垫的生产方法
CN115422735A (zh) * 2022-08-30 2022-12-02 广州吉中汽车内饰系统有限公司 一种汽车坐垫的面套打板方法、装置、终端及存储介质
CN115384369B (zh) * 2022-08-30 2024-04-05 广州吉中汽车内饰系统有限公司 一种汽车坐垫的生产方法

Also Published As

Publication number Publication date
DE10063505A1 (de) 2002-07-04
EP1343654A2 (fr) 2003-09-17
JP2004516086A (ja) 2004-06-03
WO2002049872A3 (fr) 2002-09-12

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