KR20050039348A - Method verifying design for wiring harness and circuit route in vehicle considering communication - Google Patents

Abstract

Disclosed are a wiring harness design and a circuit path verification method for a vehicle considering communication. The wiring harness design and circuit path verification method of a vehicle in consideration of the disclosed communication includes the steps of: (a) obtaining circuit information by generating a circuit diagram, introducing a 2D topology concept, and generating layout information of a harness branch and electrical equipment; (b) extracting circuit paths using circuit path tracking algorithms; (c) extracting circuit number by wiring harness, circuit number by part number, number of passage wires per quarter, and outer diameter information, respectively; (d) whether the physical characteristics and influence of the wiring harness according to the change and addition and deletion of the electrical equipment, the increase and decrease of the circuit due to the integration of communication application functions, and the change of the circuit can be verified and utilized, respectively. Judging; (e) if the condition in step (d) is satisfied, conducting a final review.

According to the present invention, by verifying the physical information together, it is possible to optimize the circuit design in consideration of the physical information when designing the circuit, thereby ensuring the design quality through the optimized design of the physical information and the circuit information.

Description

Wiring harness design and circuit path verification method of vehicle considering communication {METHOD VERIFYING DESIGN FOR WIRING HARNESS AND CIRCUIT ROUTE IN VEHICLE CONSIDERING COMMUNICATION}

The present invention relates to a wiring harness design and a circuit path verification method of a vehicle considering communication, and more specifically, in order to cope with the application of new technologies such as automotive communication, a 2D topology is introduced to physically present circuit information. Design to cope with next-generation vehicle design by integrating the know-how of existing design by implementing elements in the same system and establishing methodologies for efficient connection and utilization of circuit information and physical information. The present invention relates to a wiring harness design and circuit path verification method of a vehicle considering communication for establishing an environment.

Commercially available tools that provide an interface for existing wiring harness design can be largely divided into tools for generating physical information generation (MCAD) and circuit information (ECAD).

For the wiring harness design, the circuit information generated through the ECAD is transferred to the MCAD in the form of a wire list, and the circuit information on the 3D layout generated by the MCAD, for example, a connector and an electric wire. Work procedures should be in the form of updating quantities.

However, the physical information generated in the MCAD has a considerable amount of work and time required due to the change of conventional commercial tools, and the influence of the change is analyzed because the generated physical information is generated for each harness instead of the entire vehicle. Difficult to do

In addition, there is a possibility that the circuit information and the physical information do not match each other because the acquisition of the circuit information and the connection between the ECAD wires are not made smoothly.

In the case of ECAD, since conventional commercial tools generate circuit information based on block diagrams according to logical connections between in-vehicle electrical systems, the influence of physical parts cannot be verified in advance.

In addition, since the wire length information is simply obtained on the interface with the MCAD, it is difficult to consider the organic connection relationship between circuits / layouts such as the number of circuits for each harness branch.

In addition, in order to calculate the basis for the influence of the application of the new technology in the new technology sector such as the communication application of the wiring harness sector, the optimized circuit design is performed by verifying the influence of the physical sector at the circuit design stage. It should be made, but the interface provided by the existing commercial tools does not provide an organic connection relationship between the physical information and the circuit information.

The present invention has been made to solve the above problems, to ensure the quality of the wiring harness design through the analysis of the impact of the design changes in the circuit design phase, and to the integration and separation of functions in connection with the vehicle communication system application By designing the circuit information such as the increase and decrease of the circuit number and the corresponding increase and decrease of the outer diameter of the harness, the design direction for the improvement of the wiring quality is prepared early, and the designer's workload and work are integrated by utilizing the circuit information and the physical information. The purpose of the present invention is to provide a wiring harness design and circuit path verification method of a vehicle in consideration of communication to reduce time.

In order to achieve the above object, the wiring harness design and circuit path verification method of a vehicle considering the communication of the present invention includes (a) obtaining circuit information by generating a circuit diagram, and introducing a concept of 2D topology, Generating batch information; (b) extracting circuit paths using circuit path tracking algorithms; (c) extracting circuit number by wiring harness, circuit number by part number, number of passage wires per quarter, and outer diameter information, respectively; (d) whether the physical characteristics and influence of the wiring harness according to the change and addition and deletion of the electrical equipment, the increase and decrease of the circuit due to the integration of communication application functions, and the change of the circuit can be verified and utilized, respectively. Judging; (e) if the condition in step (d) is satisfied, conducting a final review.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to the description, as shown in Figure 1 will be described with reference to a block diagram schematically showing the configuration and operation of the system applied to the wiring harness design and circuit path verification method of the vehicle considering the communication according to the present invention. do.

Circuit design information 10 according to the electric circuit diagram 11, path design information 20 including circuit information based on the 2D topology 21 as a circuit path design diagram, and the consistency verification processing unit 30 that exchanges the information. And an interface processor 50 configured to receive the physical information 40 about the in-vehicle route by the 3D layout 41 and the route design information 20 and provide the information to the conformity verification processor 30. It is configured to include.

The interface processor 50 includes electrical equipment layout / circuit path information 51, circuit number information 52 by model unit, circuit number information 53 by harness, and circuit number information by part number (P / NO). (54), circuit number and outer diameter information 55 for each branch, circuit path information 56 for each load, load group information 57 for each system, and circuit influence information 58 for communication application and system integration. It is configured to include).

The wiring harness design and circuit path verification method of the vehicle considering the communication according to the present invention by applying the system having the above configuration will be described below.

FIG. 2 is a schematic flowchart sequentially illustrating a wiring harness design and a circuit path verification method of a vehicle considering communication according to the present invention.

Referring to the drawings, the wiring harness design and circuit path verification method of a vehicle in consideration of communication according to the present invention, first, the circuit information through the circuit diagram generation through the circuit design information (10) provided with the electrical circuit diagram (11) import the wire list (step 110).

In addition, the concept of 2D topology is introduced to generate layout information of the harness branch and the electronic equipment.

The circuit path is then extracted using the circuit path tracking algorithm (step 130).

In addition, the number of circuits by wiring harness is extracted, the number of circuits by part number (P / NO) is extracted, and the number of passage wires and outer diameter information by quarter is extracted. (Steps 140, 150, and 160).

In addition, the physical quantity and influence of the wiring harness according to the change and addition and deletion of the electronic device, the increase and decrease of the circuit due to the integration of communication application-related functions, and the change of the circuit can be verified and used. (Step 170)

If the condition in step 170 is satisfied, a final review is made and the control logic ends (step 180).

On the other hand, if the condition in step 170 is not satisfied, the control logic is restarted from the beginning.

The wiring harness design and circuit path verification method of the vehicle in consideration of the communication according to the present invention made as described above will be described in more detail.

The wiring harness design and circuit path verification method of the vehicle considering the communication according to the present invention utilizes the concept of a 2D topology, which represents a physical connection relationship for each electric load of a vehicle implemented on a plane. Create a connection relationship. Of course, the 2D topology is implemented to create and manage physical and circuit information together.

And the first step in implementing the method according to the invention begins with the creation of a circuit diagram defining the logical connections between the electrical systems.

By the way, the conventional circuit diagram used is a circuit diagram that includes not only the logical connection of the circuit but also the information on which the physical information such as the connector and the in-line connector are based. When the circuit diagram is created, the timing of completing the circuit diagram creation is delayed, and since the circuit diagram was created without verifying the influence with the vehicle layout, a large amount of trial and error occurs due to the circuit diagram creation.

Even the same connection relationship in the logical schematic can be derived in several cases with respect to cost, weight and circuit suitability. As an example, as shown in FIG. 3, the signal junction portion of the logical circuit diagram (a) may be implemented by splices of the physical circuit diagram (A) or multiple terminals of the physical circuit diagram (c) due to physical factors. In the case of two cases, the decision of the two cases is decided by the user on the existing circuit diagram and the influence of cost / weight and the number of vehicle circuits cannot be verified. Since information such as a branch is included, the basis of the above case can be secured.

After the generation of the logical circuit diagram is completed, physical information such as vehicle branch and electrical equipment layout is generated on the 2D topology, and when the circuit information obtained from the logical circuit diagram is automatically matched, the circuit information is included in each branch of the 2D topology. Done.

Through the included circuit information, the path tracking algorithm can check the circuit path for each load. And through the extracted circuit path for each load, the number of circuits that pass through the main part can be extracted. Through the extracted circuit number, the outer diameter, design cost, and weight of the harness can be verified before actual production without going through the 3D layout.

In addition, in the existing circuit diagram, the user must reflect each circuit diagram in order to change / delete / add circuit information to the circuit diagram, but in the system of FIG. 1, the addition / deletion of connectors, splice and multi-terminal determination, and pin Changes such as connection changes can be managed in a 2D topology, and the decisions made here are automatically reflected on the logical circuit diagram, and a large amount of circuit information that has been required by the existing user must be verified based on the verification results with the physical information. Can be reflected automatically.

In addition, it is also possible to respond more easily based on more based results by utilizing the 2D topology according to the present invention in connection with the vehicle communication application.

On the other hand, in the existing circuit diagram-related system, it only includes wire connection and connector information between electric loads and the information such as the whole branch path of the vehicle cannot be confirmed, so the number of circuits increased or decreased due to the communication application and non-application in relation to communication application. Review and verification were not possible.

In addition, in the 3D layout, it is impossible to check unless there is a difference in the appearance of the harness depending on the communication application and non-application, and the change of the circuit information cannot be confirmed further.

However, in the present invention, the change due to the integration of functions and the integration of the electric field unit related to the communication application is implemented on the 2D topology, and the information such as the wire connection, the connector change, and the circuit path change are automatically updated with the circuit diagram. Can be easily managed.

In addition, information such as the number of passing wires and circuit paths of branches related to the communication application can be verified together, thereby reducing the amount of work and the time required for the communication application, and at the same time, obtaining more valid results.

As described above, the wiring harness design and circuit path verification method of the vehicle considering the communication according to the present invention has the following effects.

By verifying the physical information together, it is possible to design the optimized circuit considering the physical information in the circuit design, to ensure the design quality through the optimization design of the physical information and the circuit information, and to review the circuit count and the circuit path optimization. This enables cost savings as the number of vehicle circuits is reduced.

The 2D topology allows users to simultaneously work with and view their circuit and layout information.

Simultaneous verification of circuits and layouts also reduces the subsequent process after schematic drawing.

The circuit diagram is created based on the verification of the total number of circuits and the number of circuits by part number and the path extraction, etc., thus reducing the user's work volume and work time due to subsequent process reduction when matching with physical information. have.

In addition, it can provide a wiring harness design environment suitable for responding to new technology application for vehicle communication application.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

1 is a block diagram schematically illustrating a system to which a wiring harness design and a circuit path verification method of a vehicle considering communication according to the present invention are applied;

FIG. 2 is a schematic flowchart sequentially illustrating a wiring harness design and a circuit path verification method of a vehicle considering communication according to the present invention. FIG.

Figure 3 is a schematic diagram showing a logical circuit diagram and a physical circuit diagram applied to the present invention, respectively.

Claims (1)

(a) acquiring circuit information by generating a circuit diagram, introducing a 2D topology concept, and generating layout information of harness branches and electrical equipment; (b) extracting circuit paths using circuit path tracking algorithms; (c) extracting circuit number by wiring harness, circuit number by part number, number of passage wires per quarter, and outer diameter information, respectively; (d) whether the physical characteristics and influence of the wiring harness according to the change and addition and deletion of the electrical equipment, the increase and decrease of the circuit due to the integration of communication application functions, and the change of the circuit can be verified and utilized, respectively. Judging; (e) if the condition in step (d) is satisfied, conducting a final review; and a wiring harness design and circuit path verification method for a vehicle considering communication.