WO2009053282A1 - Verfahren zum bereitstellen von modellen - Google Patents
Verfahren zum bereitstellen von modellen Download PDFInfo
- Publication number
- WO2009053282A1 WO2009053282A1 PCT/EP2008/063823 EP2008063823W WO2009053282A1 WO 2009053282 A1 WO2009053282 A1 WO 2009053282A1 EP 2008063823 W EP2008063823 W EP 2008063823W WO 2009053282 A1 WO2009053282 A1 WO 2009053282A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- technical
- units
- connection points
- models
- subsystems
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B17/00—Systems involving the use of models or simulators of said systems
- G05B17/02—Systems involving the use of models or simulators of said systems electric
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/15—Vehicle, aircraft or watercraft design
Definitions
- the invention relates to a method for providing models, a method for diagnosing at least one technical device, a device for providing models, a computer program and a computer program product.
- the diagnostic strategy considered is symptomatic, that is, a starting point for the workshop diagnosis is a certain amount of symptoms of misconduct, which usually come from three sources of diagnostic information:
- Advanced systems are based on algorithms of a class of model-based diagnostics. These algorithms analyze all available diagnostic information and contrast it with a functional model of the vehicle.
- the functional model reflects the behavior of the vehicle to a certain degree of detail.
- the models are usually hierarchical, i. there are models of components which in their shading represent the model of a subsystem, several subsystem models form models of systems, e.g. Brake system, engine system, etc., the set of all system models is finally the model of the vehicle.
- model-based diagnostic algorithms are able to give recommendations for suspicious components or additional measurement and test instructions.
- the invention relates to a method for providing models and thus for modeling a number of technical devices, wherein it is provided that each technical device comprises units which are connected to one another via connection points, wherein when the method is carried out, at least one structure consists of one another via connection points interconnected units, which have common features for all the technical facilities, and are described automatically as at least one common module for all models of the technical equipment.
- connection point or connection nodes or so-called ports are extracted via the connection point or connection nodes or so-called ports.
- these similarities may be identical for all technical facilities.
- the Unit Within a module, the Units internal junctions or ports that interconnect the units within the module. External connection points or ports of the module or units, which are arranged in particular on a boundary of the module, are suitable for making connections to units outside the module.
- At least one structure that has at least one unit with at least one connection point, which is present for at least one technical device and which differs structurally from the at least one common module, than at least one variant of a model for the at least one technical device is described within the number of technical devices, whereby at least one difference of the variant is extracted, so that overall similarities and variant-specific subtleties or differences of the technical devices can be extracted.
- the at least one common module is usually designed as the largest possible coherent, common or identical structure for all facilities.
- a behavior of the technical devices can be described.
- a behavior that is common or common to a plurality or possibly all of the technical devices can be summarized as being similar for all these types of technical devices and thus for all these devices.
- a behavior unique to one device or only a few devices can be described by units outside of common modules, so that these devices describe specific or specific variants of individual modules.
- Units are described.
- a hierarchy of units is described as part of the procedure.
- units that are embodied in a lower level as components of technical facilities are finally grouped together at a higher level than subsystems and such subsystems at a next higher level as systems and systems as models of technical facilities.
- Common modules of multiple technical facilities may group together common structures that may include units, subsystems, and systems.
- At least one structure of units connected to one another via connection points which has common features for a subset of the technical devices or is identically formed, is automatically described as at least one module for the subset or as submodule of the technical devices.
- the method offers, for example, similar or related technical equipment, for example motor vehicles of a series with different engines or equipment.
- units are modeled taking into account joints for all vehicles. Differences between motor vehicles, u. a. may be due to different equipment, are considered as variants in the context of the procedure.
- junctions reflect relationships between individual units within such structures.
- the described joints or nodes are described as either internal or external ports. In this case, a first internal connection point on a first unit within a structure and / or a module can connect or link this first unit to a second unit which has a second connection point. So-called.
- External ports or joints are usually cross-module and can connect one module to another module or unit.
- the structures or modules comprise groups of units.
- At least one group of units having a common or identical structure for all devices can also be summarized as an abstract common to the devices, wherein for at least one device at least one unit different from the units of the at least one group is used. is described as a complementary variant to the abstract.
- the abstract may be described in terms of a related structure of the units of the at least one group.
- Hierarchies of units of technical equipment can also be described with the models. It is provided, inter alia, that individual components of technical equipment are described as the simplest or most elementary units.
- modules which are also referred to as subsystems.
- Such subsystems can in turn be referred to as units, which can be further combined with consideration of connection points to systems that also form common or possibly different modules for the technical facilities.
- the technical devices can be described in a modular manner.
- Common or identical modules which have similarities or are identically formed for all technical equipment or at least part of the technical equipment, will i. a. referred to as abstraction, with which a modular modulation of the technical facilities is possible, so that by summarizing a variety of technical facilities that are summarized on the abstract, for example, in an application, a diagnosis of at least one technical device is possible.
- All the technical devices may have at least one group of common features, and at least one of these devices may have at least one feature other than the common features or units such that the at least one group of common features is described as an abstract, and where the at least one a distinguishing feature or a distinctive unit for the at least one device is described as a supplementary variant of the at least one abstract.
- the invention also relates to a method for diagnosing at least one technical device comprising a plurality of units and associated with a number of technical devices, wherein the diagnosis by means of a model for the at least one technical Device that is described by a method according to any one of the preceding claims, is performed.
- each technical device has units which are connected to one another via connection points, is designed to have at least one structure of units connected to one another via connection points that are common to all technical devices has to describe automatically as at least one common module for all technical facilities.
- This described device according to the invention is u. a. adapted to perform all the steps of at least one of the above-described methods, i. the method for providing the models of the technical device and the method for diagnosing at least one technical device to perform.
- the computer program with program code means according to the invention is designed to perform all the steps of a described method when the computer program is executed on a computer or a corresponding arithmetic unit, in particular in a described device.
- the invention also relates to a computer program product with program code means which are stored on a computer-readable data carrier in order to perform all the steps of a presented method when the computer program is executed on a computer or a corresponding computing unit, in particular in a device according to the invention.
- the invention further provides modeling mechanisms to efficiently address the given variant variety of the invention, and by use common modules to easily link already existing models to lay the foundation for a cross-system diagnosis.
- the invention typically provides aspects for a modeling language.
- the invention can be used to perform a model-based diagnosis for at least one technical device.
- the models usually have a hierarchical structure, with components as the smallest units in subsystems or modules grouped together as larger units. Within systems that can also be configured as modules, subsystems are in turn combined.
- An abstract is typically a module having only the similarities of several technical devices, e.g. a basic structure of a diesel system for a vehicle type of a series, which is valid for all variants.
- An abstract can thus serve as a template for a variety of variants.
- the use of an abstract for all variants or technical equipment as a part of the model already exists and only the variant-specific subtleties are modeled as additional units and thus concretized, e.g. a turbocharger in a turbocharged diesel system.
- a hierarchical order of abstracts is also possible, i. Abstracts, which in turn have similarities, can be further abstracted and summarized.
- the modeling effort can be reduced.
- a reusability of existing modules for example, abstracts for variants or for new systems to be developed, given.
- the black box method is a common mechanism that allows subsystems to be modeled without specifying the internal structure. For example, only the overall behavior, e.g. if air of quantity A flows in, air of quantity B must flow out, and the external ports of the subsystem or subsystem must be known.
- Modeling language A modeled unit generally has inputs and outputs, so-called ports. A relationship between units is described by relations, behavioral tables, or equations using the modeling language. The relations in a model usually contain parameters that can also be set in the context of modeling. When shading partial models, e.g. of components or subsystems, the notion of materials has prevailed. Materials are transported between and through components as simple units. Materials have attributes that u. a. Characterize conditions of the materials and can be altered as a module during transport through a component or subsystem. In one example, material is called air, its attributes are temperature, pressure, and humidity. The interconnection of subsystems and the modeling of materials is also done using the modeling language.
- Abstract models are used to treat the variety of variants.
- the abstracta or modules can be generated automatically from existing models and manually.
- An automated abstraction process requires at least two models.
- the goal of an abstraction algorithm can u. a. be to capture commonalities and differences in the models.
- the basis for this assessment are previously specified metrics.
- a metric may e.g. Evaluate the structural similarity of components by examining the number, location and port material used.
- FIG. 1 shows a schematic representation of an example of an abstraction process carried out in the context of a first embodiment of the method.
- FIG. 2 shows a schematic representation of an example of an aggregation of subsystems via external ports, which is carried out in the context of a second embodiment of the method.
- FIG. 1 An aspect of an embodiment of the method according to the invention is shown schematically with reference to FIG. 1 shows two subsystems 2, 4.
- Each of these two subsystems 2, 4 comprises first components 6, which are interconnected via connection points and thus form a common structure due to an identical construction, which as a common module 8 in a first abstraction step 10th extracted and thus described.
- the first subsystem 2 a second component 12 and the second subsystem 4 has a third component 14.
- the two subsystems 2, 4 common within the common module 8 as a first component 6 formed and combined units.
- the two subsystems 2, 4 differ from each other by the second and third components 12, 14.
- third subsystem 18 based on the common module 8.
- This third subsystem 18 also comprises the common module 8 with the first components 6 interconnected via the connection points.
- the third subsystem 18 differs from the two first subsystems 2, 4 by an additional unit which has an additional unit
- junction connected to the module 8 and is designed as a fourth component 20.
- FIG. 1 shows, in a simplified schematic representation, an embodiment of an abstraction process.
- There are initially two subsystems 2, 4 are provided, which differ from each other only in one component 12, 14.
- the remaining components 6 are identical and can be adopted in a first abstraction step 10 in the common module 8 or abstract.
- the abstract therefore has all the similarities of the two subsystems 2, 4.
- a third subsystem 18 is to be generated which has at least the units of the abstract, the abstract can be used as a template in a second abstraction step 16. Only the additional concretizing features of the new subsystem 18 need to be modeled.
- the depth of abstraction is not limited here, i. Abstract and thus common modules 8 can in turn be abstracted. This process can be continued indefinitely.
- the ports can be used to communicate with the ports.
- the ports can be used to communicate with the ports.
- the smallest unit in the modeling is a component 6, 12, 14, 20 and can only have external ports or external connection points.
- a combination of several components 6, 12, 14, 20 results in a subsystem 2, 4, 18 or system, common structures existing within such subsystems 2, 4, 18 or systems are combined as common modules 8.
- the shading can only be provided via external ports.
- FIG. 2 schematically illustrates exemplary shading of components 30, 32, 34 to subsystems 36, 38, 40 and subsystems 36, 38, 40 to a system 42, and also a hierarchical arrangement of system 42, subsystems 36, 38 , 40 and components 30, 32, 34.
- a first subsystem 36 comprises as units six components 30, which are interconnected within the subsystem 36 via internal connection points or ports.
- the second subsystem comprises five units formed as components 32, which are also interconnected via internal connection points.
- the third is
- Subsystem 40 which has six units formed as components 34, structured, wherein the components 34 of the third subsystem 40 are also connected to each other via internal connection points.
- Components 30, 32, 34 are shown in detail, in addition to the internal connection points, which connect the individual components 30, 32, 34 within the respective subsystems 36, 38, 40 with each other, external connection points or external ports can be seen.
- the system 42 is formed, now the subsystems 36, 38, 40 are interconnected via the external connection points.
- the details of this system 42 are shown, whereas in FIG an upper portion of Figure 2, the system 42 is shown as a compact unit with its own external connection points.
- the components 30, 32, 34 are shown within the subsystems 36, 38, 40, which in their original form have only external ports.
- the first subsystem 36 is now created by manually connecting the corresponding components 30.
- the remaining unconnected ports of the components 30 are subsequently explicitly declared as external ports, so that the first subsystem 36 has seven external ports that can be shadowed by other subsystems 38, 40, analogous to the second and third subsystems 38 To proceed 40.
- the system 42 shows the association of the three subsystems 36, 38, 40 and also has seven external ports.
- the external ports may become internal ports upon shadowing at the next higher level in an uplink or bottom-up view 44, respectively. This occurs, for example, when the three subsystems 36, 38, 40 are linked to the system 42.
- the lowest external port of the second subsystem in FIG. 2 in the lowest level becomes an internal port in the middle level after being linked to the system 42, such that the second subsystem 38 can be connected to the third subsystem 40 via this port.
- a downwards or top-down consideration when descending from a higher to a lower level, details and thus units of superordinate structures are clarified.
- Cross-system diagnostics are typically accomplished by having the elements of a model have internal and external ports and can be connected only through the external ports. It does not matter how detailed the individual subsystems or subsystems are modeled, which is a key difference to the current approaches. The abstraction process can be triggered manually in the modeling software by clicking on the corresponding symbol.
- Internal and external ports can be represented in a modeling software by different colors.
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- Computational Mathematics (AREA)
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Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0818018 BRPI0818018A2 (pt) | 2007-10-24 | 2008-10-15 | Processo para a preparação de modelos |
CN200880113080A CN101836170A (zh) | 2007-10-24 | 2008-10-15 | 用于提供模型的方法 |
EP08842207A EP2206026A1 (de) | 2007-10-24 | 2008-10-15 | Verfahren zum bereitstellen von modellen |
US12/739,522 US20110040538A1 (en) | 2007-10-24 | 2008-10-15 | Method for preparing models |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007050804.4 | 2007-10-24 | ||
DE102007050804A DE102007050804A1 (de) | 2007-10-24 | 2007-10-24 | Verfahren zum Bereitstellen von Modellen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009053282A1 true WO2009053282A1 (de) | 2009-04-30 |
Family
ID=40276015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2008/063823 WO2009053282A1 (de) | 2007-10-24 | 2008-10-15 | Verfahren zum bereitstellen von modellen |
Country Status (6)
Country | Link |
---|---|
US (1) | US20110040538A1 (de) |
EP (1) | EP2206026A1 (de) |
CN (1) | CN101836170A (de) |
BR (1) | BRPI0818018A2 (de) |
DE (1) | DE102007050804A1 (de) |
WO (1) | WO2009053282A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105912820A (zh) * | 2016-05-09 | 2016-08-31 | 江苏祥和电子科技有限公司 | 一种汽车发动机可靠性建模的方法 |
JP2017204208A (ja) * | 2016-05-13 | 2017-11-16 | 富士ゼロックス株式会社 | 操作モデル構築システム及び操作モデル構築プログラム |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6477539B1 (en) * | 1998-12-22 | 2002-11-05 | Nortel Networks Limited | Method and apparatus for interfacing a manager and a plant |
US20060155387A1 (en) * | 2004-12-24 | 2006-07-13 | Donald Pieronek | Architecture for control systems |
US20060161597A1 (en) * | 2005-01-14 | 2006-07-20 | Ougarov Andrei V | Child data structure update in data management system |
-
2007
- 2007-10-24 DE DE102007050804A patent/DE102007050804A1/de not_active Withdrawn
-
2008
- 2008-10-15 EP EP08842207A patent/EP2206026A1/de not_active Withdrawn
- 2008-10-15 US US12/739,522 patent/US20110040538A1/en not_active Abandoned
- 2008-10-15 CN CN200880113080A patent/CN101836170A/zh active Pending
- 2008-10-15 WO PCT/EP2008/063823 patent/WO2009053282A1/de active Application Filing
- 2008-10-15 BR BRPI0818018 patent/BRPI0818018A2/pt not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6477539B1 (en) * | 1998-12-22 | 2002-11-05 | Nortel Networks Limited | Method and apparatus for interfacing a manager and a plant |
US20060155387A1 (en) * | 2004-12-24 | 2006-07-13 | Donald Pieronek | Architecture for control systems |
US20060161597A1 (en) * | 2005-01-14 | 2006-07-20 | Ougarov Andrei V | Child data structure update in data management system |
Non-Patent Citations (1)
Title |
---|
MICHAEL WESTERGAARD: "Supporting Multiple Pointing Devices in Microsoft Windows", PROCEEDINGS OF MICROSOFT SUMMER WORKSHOP FOR FACULTY AND PHDS, SEPTEMBER 2002, 11 January 2007 (2007-01-11), Cambridge, England, XP002512807, Retrieved from the Internet <URL:http://web.archive.org/web/20070111055346/klafbang.eu/personlig/publications/mouse.pdf> [retrieved on 20090130] * |
Also Published As
Publication number | Publication date |
---|---|
US20110040538A1 (en) | 2011-02-17 |
CN101836170A (zh) | 2010-09-15 |
DE102007050804A1 (de) | 2009-04-30 |
BRPI0818018A2 (pt) | 2015-04-14 |
EP2206026A1 (de) | 2010-07-14 |
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