阅读说明：本技术 一种机车动车变流柜用电气原理设计方法 (Electric principle design method for motor vehicle converter cabinet ) 是由 李秋玲 侯涛 李竹可 李先亮 张亚斌 梁海刚 于 2019-09-21 设计创作，主要内容包括：一种机车动车变流柜用电气原理设计方法,采用E3.series作为变流柜电气原理设计的实现工具；综合公司的上下流业务需求,进行二次开发,调用E3.series内部API函数,实现电气原理框图内连接器与所连接的标准设备或元件的管脚或位置点的针脚命名匹配,开发与三维设计软件Creo的接口,指导三维设计环境中线束的空间规划,输出面向工艺的规定格式的包含线缆长度的EXCEL接线表,实现电气原理逻辑设计与物料数据的管理的无缝集成,原理框图与EXCEL接线表、电气物料数据的联动更改和实时更新,为研发计划制定、物料采购、产品的测试试验、下游的工艺布线环节等数据的一致性、准确性提供保障。(A design method of electric principle for a motor vehicle converter cabinet adopts E3.series as a realization tool for the electric principle design of the converter cabinet; integrating the up-down flow service requirements of a company, carrying out secondary development, calling an API (application program interface) function inside E3.series, realizing pin name matching of a connector in an electrical principle block diagram and pins or position points of connected standard equipment or elements, developing an interface of Creo software and three-dimensional design, guiding space planning of a wiring harness in a three-dimensional design environment, outputting an EXCEL wiring table which faces a specified format of a process and contains cable length, realizing seamless integration of electrical principle logic design and material data management, carrying out linkage change and real-time update of the principle block diagram, the EXCEL wiring table and electrical material data, and providing guarantee for consistency and accuracy of data of research and development planning, material purchasing, product test, downstream process wiring links and the like.)

1. The method for designing the electric principle of the motor vehicle converter cabinet is characterized by comprising the following steps of:

s1: building an E3.series electrical device library suitable for material data management, device key information and cable information of an enterprise, and configuring a database bottom template;

s2: configuring a schematic diagram template according to a database bottom template, calling data information of an E3.series electrical device library, and drawing an electrical schematic diagram according to a specific electrical rule;

s3: judging whether to change the electrical schematic diagram according to the actual situation on site, and returning to S2 for changing if the electrical schematic diagram needs to be changed;

if the operation is not required to be changed, the next operation is carried out;

s4: calling an API (application program interface) function inside an E3.series electrical device library by developing a pin name matching plug-in for the second time to complete the pin name matching of the connector end;

s5: importing the electrical connection logic relationship in the electrical principle block diagram into a three-dimensional design environment through a secondary development plug-in Creo interface, and indicating the space planning of the wire harness;

s6: outputting cable length information by three-dimensional design software according to the space plan of the guide wire bundle;

s7: data are transmitted back to an E3.series environment through a secondary development Creo interface according to the output cable length information;

s8: calling an API (application program interface) function in an E3.series electrical device library by a secondary development wiring table plug-in unit, and outputting a wiring table;

s9: and outputting the electrical design bill of materials by secondarily developing the electrical design bill of materials plug-in unit.

2. The electrical principle design method for a motor vehicle converter cabinet according to claim 1, wherein the materials involved in S1 include control unit, power module, electrical device, contact pin, terminal block and terminal row definitional materials and wire number tube non-electrical definitional materials.

3. The electrical principle design method for the automotive converter cabinet as claimed in claim 1, wherein in S2, through secondary development plug-in components, Visual Basic scripting language is used to call API functions inside the software of e3.series, and pin positions of connectors themselves, standard devices and components at the first and last ends with connection relationships are traversed, searched and matched, so as to achieve accurate definition of electrical connection logic connection relationships and complete preliminary electrical inspection of electrical design.

4. The electrical principle design method for the automotive converter cabinet as claimed in claim 1, wherein in S8, the Visual Basic-based scripting language is used to call the API function in the e3.series software to accurately read the information of the electrically-defined material and the non-electrically-defined material involved in the functional block diagram, and output the wiring list in the EXCEL format with the specified format.

5. The electrical principle design method for a motor vehicle converter cabinet according to claim 1, wherein in S8, the internal API function of the software of e3.series is called through the script language of Visual Basic, and the wiring information in each "page" is read.

6. The method for designing the electrical principle of a motor vehicle converter cabinet according to claim 1, wherein in S9, an API function inside the software of e3.series is called through a script language of Visual Basic, so as to complete reading and statistics of the electrical design materials and output an electrical design material list of specified fields.

7. The method for designing the electrical principle of the automotive converter cabinet according to claim 1, wherein in the step S9, secondary development plug-ins named as "pin name matching", "Creo interface", "wiring list" and "electrical design bill of materials" are introduced in the steps S4, S5, S8 and S9 through an e3.series software self-defining function.

Technical Field

The invention belongs to the technical field of converter cabinet design, and particularly relates to an electrical principle design method for a motor vehicle converter cabinet.

Background

An AC-DC-AC power transmission power supply system is mostly adopted in the prior converter cabinets of locomotives and motor cars, the electric transmission system comprises a main circuit, a control circuit, a sensor signal acquisition circuit and a power distribution circuit, the design of the converter cabinets generally adopts a top-down design, the overall design is firstly carried out and then the detailed design of each subsystem is carried out, an electrical engineer starts to carry out the detailed design of the subsystems of the converter cabinets after obtaining the overall mechanical and electrical interface and performance requirements, the selection of electrical materials can be designed according to the comprehensive requirements of space interference condition, heat dissipation, electromagnetic compatibility and bending radius of cables and communicate with a design scheme with customers, the middle process involves repeated change, and the electric principle of the converter cabinets is designed by a mainstream person adopting two-dimensional electrical design and EXCEL form of AutoCAD.

The two-dimensional electrical schematic diagram design based on the AutoCAD mainly adopts an expression mode based on a graph, electrical symbols and material information of devices are mutually isolated, electrical material data are generated into material details independent of a schematic diagram through a mode of manual statistics and later-stage addition, wiring table data and an electrical design material list for process guidance field production are also added into an EXCEL table through a manual mode, and the accurate length of a cable cannot be obtained.

The two-dimensional electrical schematic diagram based on the AutoCAD is adopted, the material information and the electrical symbols of the device independently exist, the integration level of the device and other subsystems is low, data storage is dispersed, selection and query of electric devices are inconvenient, drawing understanding is affected, and related product material information, such as spool information material information, outer diameter, color and bending radius information of various electric devices, connectors, pins, terminals and cables, cannot be visually embodied on the schematic diagram.

Relevant material data in the electrical design are added manually after being counted by manual material data, when the electrical principle design needs to be changed, for example, when a certain path of collected signals is added or the materials are changed, the electrical principle diagram and wiring meter data cannot be changed in a linkage mode, the electrical principle diagram needs to be changed and the wiring meter needs to be changed simultaneously, the workload is large when the electrical design is changed, and a large amount of manpower and material resources are consumed, and errors easily occur simultaneously.

Disclosure of Invention

The invention aims to provide an electrical principle design method for a motor vehicle converter cabinet, which solves the problems that the existing electrical design is large in workload for changing, consumes a large amount of manpower and material resources, and is easy to cause errors.

The purpose of the invention is realized by the following technical scheme:

an electrical principle design method for a motor vehicle converter cabinet specifically comprises the following steps:

s1: building an E3.series electrical device library suitable for material data management, device key information and cable information of an enterprise, and configuring a database bottom template;

s2: configuring a schematic diagram template according to a database bottom template, calling data information of an E3.series electrical device library, and drawing an electrical schematic diagram according to a specific electrical rule;

s3: judging whether to change the electrical schematic diagram according to the actual situation on site, and returning to S2 for changing if the electrical schematic diagram needs to be changed;

if the operation is not required to be changed, the next operation is carried out;

s4: calling an API (application program interface) function inside an E3.series electrical device library by developing a pin name matching plug-in for the second time to complete the pin name matching of the connector end;

s5: importing the electrical connection logic relationship in the electrical principle block diagram into a three-dimensional design environment through a secondary development plug-in Creo interface, and indicating the space planning of the wire harness;

s6: outputting cable length information by three-dimensional design software according to the space plan of the guide wire bundle;

s7: data are transmitted back to an E3.series environment through a secondary development Creo interface according to the output cable length information;

s8: calling an API (application program interface) function in an E3.series electrical device library by a secondary development wiring table plug-in unit, and outputting a wiring table;

s9: and outputting the electrical design bill of materials by secondarily developing the electrical design bill of materials plug-in unit.

Further: the materials involved in S1 include control unit, power module, electrical devices, pins, terminals, and terminal block definitional materials and wire-number-tube non-electrical definitional materials.

Further: and in the S2, through secondary development plug-ins, the Visual Basic script language is used for calling an API function in the E3.series software, and the pin positions of the connectors, the standard equipment and the components at the head end and the tail end with the connection relation are traversed, searched and matched, so that the accurate definition of the electrical connection logic wiring relation is realized, and the initial electrical inspection of the electrical design is completed.

Further: and in the S8, an internal API function of the E3.series software is called by using a script language based on Visual Basic to accurately read the information of the electrical definition type material and the non-electrical definition type material related in the schematic diagram, and a wiring table in an EXCEL format in a specified format is output.

Further: and in the S8, calling an API function inside the E3.series software through a Visual Basic scripting language, and reading the wiring information in each page.

Further: and in the step S9, an API function inside the E3.series software is called through a Visual Basic scripting language, reading and counting of the electrical design materials are completed, and an electrical design material list of the specified fields is output.

Further: and in the S9, through the self-defining function of the E3.series software, secondary development plug-ins with the names of S4, S5, S8 and S9, namely 'pin name matching', 'Creo interface', 'wiring list' and 'electrical design bill of materials' are introduced.

Compared with the prior art, the beneficial effect that this application has is:

the method has the advantages that seamless integration of the logic design of the electric principle of the converter cabinet and material data management is realized, the linkage change of the schematic diagram and the material data and the real-time update of the electric data are realized, the modification workload is reduced at the project demonstration stage, the error rate of manual addition of reports is reduced, the consistency and the accuracy of the data of the design research and development end of the electric design are ensured, and data support is provided for the research and development plan specification, the material purchase, the data statistics, the product test experiment and the downstream wiring links.

Drawings

FIG. 1 is a block diagram of a specific flow chart of the electrical principle design method of the present invention;

FIG. 2 is a schematic diagram of an interface for importing a secondary development plug-in according to the present invention;

FIG. 3 is a schematic view of an E3.series software interface generated by the present invention;

FIG. 4 is a schematic diagram of a converter cabinet wiring table interface generated by the present invention;

FIG. 5 is a schematic diagram of a converter cabinet electrical design bill of material interface generated in accordance with the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying drawings:

as shown in fig. 1, an electrical principle design method for a converter cabinet of a motor vehicle is characterized by specifically comprising the following steps:

s1: and (3) building an E3.series electrical device library suitable for material data management, device key information and cable information of enterprises, and configuring a database bottom template.

The method is characterized by combing material data, attribute information, pin information, wire diameter size of a cable, bending radius information and connector terminal information of common electrical parts of an enterprise, and from the aspects of product research and development design and management and maintenance of data of electrical devices, according to original parts, terminals, connectors and cable classification braking modeling rules.

Materials related in the electrical design of the converter cabinet comprise a control unit, a power module, an electric device, a contact pin, a wiring terminal, a terminal block electrical definition type material and a wire number tube non-electrical definition type material.

Firstly, establishing basic electrical graphic symbols, cable graphic symbols, grounding symbols of electrical materials and non-electrical materials and symbol patterns of a general electrical schematic diagram according to international, national and industrial standards.

Secondly, attribute information of the device is completely defined by combining the size dimension, material type, unit, material code/material name regulation of the material data in the enterprise material main data system.

The method comprises the steps of configuring a data bottom layer template text e3t file, establishing a standard device, a connector, a wire group, a cable and a component which exist in a power electronic device library, realizing the association definition of material information and an electrical symbol, enabling the material information of an electric device to be selected, inquired and convenient, being beneficial to an electrical designer to quickly complete a design task, and reducing the task change amount in the design.

S2: and configuring a schematic diagram template according to a database bottom layer template, calling data information of the E3.series electrical device library, and drawing an electrical schematic diagram according to a specific electrical rule.

The electric principle design method comprises the steps of formulating a standard electric principle drawing rule, including contents of a detail column, a picture frame and a title column, configuring a model text of an enterprise bottom principle drawing, and e3t file, displaying the rule and an electric inspection rule through the standard text, setting across pages, calling devices in a standard electric model library, designing the electric principle, dividing an electric drive system circuit into circuit sub-modules, distributing different authority collaborative designs to roles, and calling the sub-modules by different systems.

On one hand, the serialized and modularized research and development design of the product is promoted, the standardized research and development flow of the product is accelerated, on the other hand, the standardization of an electrical schematic diagram can be improved, and the understanding of the drawing is facilitated.

S3: and judging whether to change the electrical schematic diagram according to the actual situation on site, and returning to S2 for changing if the change is needed.

And if the change is not needed, carrying out the next operation.

S4: and calling an API (application program interface) function inside an E3.series electrical device library by developing a pin name matching plug-in for the second time to complete the pin name matching of the connector end.

The electrical logic connection relation between the standard devices or components exists between the added standard devices or components, and the accurate definition of the electrical logic connection relation needs to identify the pin positions of the connectors and the pins of the devices at the first end and the last end of the electrical logic connection relation.

Through secondary development plug-in components, the internal API function of the E3.series software is called by using the script language of Visual Basic, and the pin positions of the head and tail end connectors, the standard equipment and the components with the connection relation are traversed, searched and matched, so that the accurate definition of the electrical connection logic wiring relation is realized, and the initial electrical inspection of electrical design is completed.

S5: and importing the electrical connection logic relationship in the electrical principle block diagram into a three-dimensional design environment through a secondary development plug-in Creo interface, and indicating the space planning of the wire harness.

S6: and outputting the cable length information by three-dimensional design software according to the space plan of the guide wire bundle.

S7: and returning data to the E3.series environment through a secondary development Creo interface according to the output cable length information, namely importing an intermediate format file containing the cable length information in the three-dimensional design environment into the E3.series software schematic diagram design environment after the three-dimensional wiring harness model is generated.

S8: and calling an API (application programming interface) function in the E3.series software by using a Visual Basic-based script language to accurately read the information of the electrical definition type materials and the non-electrical definition type materials related in the schematic diagram, and outputting a wiring table in an EXCEL format with a specified format.

And calling an API function in the E3.series software through a script language of Visual Basic, and reading the wiring information in each page.

The following key fields in each "page" are read: the system comprises a cable number, a connector, a cable specification, a connector name (head end), a connector (tail end), a wire number pipe specification, a standard device or assembly (head end) model specification, a color and a length, and a wiring table in an EXCEL format of an output requirement format to guide the specific implementation of a workshop wiring process.

S9: and outputting the electrical design bill of materials by secondarily developing the electrical design bill of materials plug-in unit.

And calling an API (application program interface) function in the E3.series software through a Visual Basic scripting language to finish reading and counting of the electrical design materials and output an electrical design material list of a specified field.

By using the software custom function of series, secondary development plug-ins such as S4, S5, S8 and S9 named "pin name matching", "Creo interface", "wiring table" and "electrical design bill of material" are introduced as shown in fig. 2.

As shown in fig. 3, by taking the converter cabinet YGZN2Q248 as an example, based on the e3.series software, the secondary development plug-ins "pin name matching" and "wiring table" are generated based on the Visual Basic scripting language, and the pin name matching rules and the electrical connection logic in the schematic block diagram are identified, classified and counted to generate a software interface.

Such as the wiring table data generated in fig. 4.

Such as the electrical design bill of materials generated in fig. 5.

Series is adopted as the implementation tool of the electric principle design of the converter cabinet. Integrating the up-down flow service requirements of a company, carrying out secondary development, calling an API (application program interface) function inside E3.series, realizing pin name matching of a connector in an electrical principle block diagram and pins or position points of connected standard equipment or elements, developing an interface of Creo software and three-dimensional design, guiding space planning of a wiring harness in a three-dimensional design environment, outputting an EXCEL wiring table which faces a specified format of a process and contains cable length, realizing seamless integration of electrical principle logic design and material data management, carrying out linkage change and real-time update of the principle block diagram, the EXCEL wiring table and electrical material data, and providing guarantee for consistency and accuracy of data of research and development planning, material purchasing, product test, downstream process wiring links and the like.

And seamless integration of the logic design of the electric principle of the converter cabinet and the management of material data is realized.

The method comprises the following steps of (1) linkage change of a schematic block diagram and material data and real-time update of electrical data, so that the modification workload is reduced in a project demonstration stage, the error rate of manual report addition is reduced, and the consistency and accuracy of data of an end of electrical design from design research and development are ensured; and data support is provided for development planning, material purchasing, data statistics, product testing, downstream wiring links and the like.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

It is to be understood that the present application is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.