JP2016206872A - Wire harness design apparatus and design method - Google Patents
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Abstract
Description
本発明は、ワイヤーハーネス設計装置及び設計方法に関する。 The present invention relates to a wire harness design device and a design method.
近年、ワイヤーハーネスの設計を容易にするため、ＣＡＤ（コンピュータ支援設計）データを利用した設計支援装置及び設計支援方法、及びプログラムが提案されている（例えば、特許文献１参照）。 In recent years, in order to facilitate the design of a wire harness, a design support apparatus, a design support method, and a program using CAD (computer-aided design) data have been proposed (for example, see Patent Document 1).
この設計支援方法は、部品のＣＡＤデータを用意し、ハーネスの物理特性を用意し、視点および視線方向の初期設定を用意し、部品のＣＡＤデータと初期設定とに応じて、視点から見た仮想的な３次元画像を表示し、視点および視線方向の移動命令に応じてハーネスを配線し、部品のＣＡＤデータと移動命令によって変更された視点および視線方向に応じて、変更された視点から見た仮想的な３次元画像を表示装置に表示するものであり、配線終了点を用意し、視点が配線終了点に到達した場合に、ハーネスの物理特性を参照して実際に配線することが可能か否かを判別するものである。 This design support method prepares CAD data of parts, prepares physical characteristics of the harness, prepares initial settings of viewpoints and line-of-sight directions, and creates virtual data viewed from the viewpoint according to the CAD data and initial settings of the parts. 3D images are displayed, harnesses are wired according to the viewpoint and line-of-sight movement commands, and viewed from the changed viewpoint according to the viewpoint and line-of-sight changed by the CAD data and movement commands of the parts Is it possible to display a virtual three-dimensional image on a display device and prepare a wiring end point, and when the viewpoint reaches the wiring end point, can it be actually wired with reference to the physical characteristics of the harness? This is to determine whether or not.
しかし、従来の設計支援方法は、最適な電線を選択することは考慮されていない。また、一般的には、許容電流や電圧降下等の安全上の規定を満たす範囲内で、ハーネスの重量及びイニシャルコストを抑えるために導体サイズが最小の電線を選択してワイヤーハーネスを構成しており、これではランニングコストが考慮されておらず結果的にはコスト高なワイヤーハーネスを設計するおそれがある。 However, the conventional design support method does not consider selecting an optimal electric wire. In general, within the range that satisfies safety regulations such as allowable current and voltage drop, the wire harness is configured by selecting the smallest conductor size to reduce the weight and initial cost of the harness. In this case, the running cost is not taken into consideration, and as a result, there is a risk of designing a high-cost wire harness.
そこで、本発明の目的は、コストを考慮したワイヤーハーネスの設計が可能なワイヤーハーネス設計装置及び設計方法を提供することにある。 Then, the objective of this invention is providing the wire harness design apparatus and design method which can design the wire harness which considered cost.
本発明は、上記課題を解決するため、移動体を構成する部品のうち、ワイヤーハーネスを除いた部品の形状情報と位置情報とを有する３次元情報及び前記ワイヤーハーネスの接続先を含むハーネス情報を受け付ける受付手段と、前記部品の３次元情報に基づいて、前記ワイヤーハーネスを除いた部品の各立体画像を画面に表示する表示手段と、前記ハーネス情報に基づいて、前記画面に表示された前記各立体画像の間の空間に前記ワイヤーハーネスの立体画像を配線して前記ワイヤーハーネスのルートを決定する決定手段と、前記ハーネス情報の接続先の情報に基づき、前記ワイヤーハーネスを構成する電線の候補として予め用意した複数種類の電線から使用可能な電線を選択し、電線の候補のイニシャルコスト及びランニングコストに基づいて使用する電線を選択する電線選択手段と、を備えたワイヤーハーネス設計装置を提供する。 In order to solve the above problems, the present invention provides three-dimensional information having shape information and position information of parts excluding a wire harness, and harness information including a connection destination of the wire harness among the parts constituting the moving body. Accepting means for receiving, display means for displaying each three-dimensional image of the part excluding the wire harness on the screen based on the three-dimensional information of the part, and each of the parts displayed on the screen based on the harness information As a candidate of electric wires constituting the wire harness, based on the determination means for determining the route of the wire harness by laying the stereoscopic image of the wire harness in the space between the stereoscopic images, and the connection information of the harness information Select a wire that can be used from multiple types of wires prepared in advance, based on the initial cost and running cost of the wire candidate. , A wire selection means for selecting a wire to be used Te provides a wire harness design apparatus having a.
また、本発明は、上記課題を解決するため、移動体を構成する部品のうち、ワイヤーハーネスを除いた部品の形状情報と位置情報を有する３次元情報、当該部品の環境情報及び前記ワイヤーハーネスの接続先を含むハーネス情報を受け付けし、前記部品の３次元情報に基づいて、前記ワイヤーハーネスを除いた部品の各立体画像を画面に表示し、前記ハーネス情報に基づいて、前記画面に表示された前記各立体画像の間の空間に前記ワイヤーハーネスの立体画像を配線して前記ワイヤーハーネスのルートを決定し、前記ハーネス情報の接続先の情報に基づき、前記ワイヤーハーネスを構成する電線の候補として予め用意した複数種類の電線から使用可能な電線を選択し、電線の候補のイニシャルコスト及びランニングコストに基づいて使用する電線を選択する、工程を含むワイヤーハーネス設計方法を提供する。 Moreover, this invention solves the said subject, among the components which comprise a moving body, the three-dimensional information which has the shape information and position information of components except a wire harness, the environmental information of the said components, and the said wire harness The harness information including the connection destination is received, and each stereoscopic image of the component excluding the wire harness is displayed on the screen based on the three-dimensional information of the component, and is displayed on the screen based on the harness information. A wire image of the wire harness is routed in a space between the three-dimensional images to determine a route of the wire harness, and based on information on a connection destination of the harness information, as a candidate for an electric wire constituting the wire harness. Select a wire that can be used from the multiple types of wires prepared, and use it based on the initial cost and running cost of the wire candidate. Selecting a wire, to provide a wire harness design method comprising the steps.
本発明によれば、コストを考慮したワイヤーハーネスの設計が可能になる。 According to the present invention, it is possible to design a wire harness in consideration of cost.
以下、本発明の実施の形態について図面を参照して説明する。なお、各図中、実質的に同一の機能を有する構成要素については、同一の符号を付してその重複した説明を省略する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in each figure, about the component which has the substantially same function, the same code | symbol is attached | subjected and the duplicate description is abbreviate | omitted.
図１は、本発明の実施の形態に係るワイヤーハーネス設計装置の概略の構成例を示すブロック図である。 FIG. 1 is a block diagram showing a schematic configuration example of a wire harness design apparatus according to an embodiment of the present invention.
このワイヤーハーネス設計装置１は、ＣＰＵ（Central Processing Unit）等によって構成され、ワイヤーハーネス設計装置１の各部を制御する制御部２と、各種の情報を記憶する記憶部３と、キーボード、マウス、ディスクドライブ等で実現される入力部４と、液晶ディスプレイ等で実現される表示部５と、プリンタ等の外部装置と通信を行う通信部６とを備える。 The wire harness design device 1 is configured by a CPU (Central Processing Unit) or the like, and includes a control unit 2 that controls each unit of the wire harness design device 1, a storage unit 3 that stores various types of information, a keyboard, a mouse, and a disk. An input unit 4 realized by a drive or the like, a display unit 5 realized by a liquid crystal display or the like, and a communication unit 6 that communicates with an external device such as a printer.
記憶部３は、ＲＯＭ（Read Only Memory）、ＲＡＭ（Random Access Memory）、ハードディスク等から構成され、ＣＰＵのプログラム３０、３次元ＣＡＤデータ３１、ハーネス情報３２、部品情報３３、ルート情報３５、ハーネスボード図３６、電線ライブラリ３４等を記憶する。 The storage unit 3 includes a ROM (Read Only Memory), a RAM (Random Access Memory), a hard disk, and the like, and includes a CPU program 30, three-dimensional CAD data 31, harness information 32, component information 33, route information 35, and a harness board. 36, the electric wire library 34, etc. are stored.
ここで、３次元ＣＡＤデータ３１は、部品の形状情報及び位置情報を有する３次元情報の一例であり、移動体を構成する部品のうち、ワイヤーハーネスを除いた部品の形状情報及び位置情報をコンピュータで読み込み可能にデータ化したものをいう。「移動体」は、本実施の形態では鉄道車両であるが、自動車、バス等の陸上車両や航空機等の他の移動体でもよい。また、「部品」には、鉄道車両の外装、フレーム、台車、車輪、座席等の構造体や、制御盤、空調機器、照明器具等の電気機器等が含まれる。「ワイヤーハーネス」とは、複数の電線を束にし、各電線の両端部にプリント基板や機器に接続するためのコネクタ又は端子を有するものをいう。ハーネス情報３２は、ワイヤーハーネスを構成する電線の型式、直径、接続先、コネクタの型式等を含む。なお、電線の型式は、電線の種類の一例である。 Here, the three-dimensional CAD data 31 is an example of three-dimensional information having part shape information and position information. Among the parts constituting the moving body, the shape information and position information of the parts excluding the wire harness are stored in the computer. This is data that can be read by. The “moving body” is a rail vehicle in the present embodiment, but may be a land vehicle such as an automobile or a bus, or another moving body such as an aircraft. “Parts” includes structures such as railcar exteriors, frames, trolleys, wheels, seats, etc., and electrical equipment such as control panels, air conditioning equipment, and lighting equipment. The “wire harness” refers to one having a plurality of electric wires bundled and having connectors or terminals for connecting to both ends of each electric wire to a printed board or equipment. The harness information 32 includes the type, diameter, connection destination, connector type, and the like of the electric wires constituting the wire harness. In addition, the model of an electric wire is an example of the kind of electric wire.
部品情報３３には、部品がワイヤーハーネスに影響を与える環境情報、及びワイヤーハーネスに影響を与えない部品の仮想のサイズ情報が含まれる。「環境情報」は、当該部品がワイヤーハーネスの寿命等の性能に影響を与える温度、振動、放射線等の環境の情報をいう。この環境は、ワイヤーハーネスが当該部品から離れるに従ってワイヤーハーネスの性能に与える影響が小さくなり、ある距離離れると、ある性能を向上させた特別仕様以外の標準のワイヤーハーネスに対して影響が無くなる。例えば、部品が制御盤の場合、温度がワイヤーハーネスの性能に影響を与える環境になる。「サイズ情報」は、ワイヤーハーネスに影響を与えない大きさあるいは範囲の情報である。 The component information 33 includes environmental information that the component affects the wire harness and virtual size information of the component that does not affect the wire harness. “Environmental information” refers to environmental information such as temperature, vibration, radiation, etc., that affects the performance of the wire harness such as the life of the wire harness. This environment has less influence on the performance of the wire harness as the wire harness moves away from the part. When the wire harness is separated by a certain distance, there is no influence on a standard wire harness other than a special specification that improves certain performance. For example, when the component is a control panel, the temperature affects the performance of the wire harness. “Size information” is information of a size or range that does not affect the wire harness.
電線ライブラリ３４は、ワイヤーハーネスに用いる電線の特性を示す情報であって、複数の電線についての情報が記載される。電線の情報として、少なくとも導体サイズ、価格（イニシャルコスト）が記載される。 The electric wire library 34 is information indicating characteristics of electric wires used for the wire harness, and information on a plurality of electric wires is described therein. As the information on the electric wire, at least the conductor size and the price (initial cost) are described.
ルート情報３５は、ワイヤーハーネスのルート上の複数の点を３次元座標で表したものである。 The route information 35 represents a plurality of points on the route of the wire harness in three-dimensional coordinates.
ハーネスボード図３６は、ワイヤーハーネスを構成する電線の布線位置を実際の寸法で直線化した布線指示線で表したものである。なお、ハーネスボード図３６には、布線指示線の他に、ワイヤーハーネスを構成する電線の型式、電線長、コネクタの型式等の電線情報３６ｂが各布線指示線３６ａに対応して記載される。 Harness board FIG. 36 represents the wiring position of the electric wire which comprises a wire harness with the wiring instruction | indication line which linearized with the actual dimension. In the harness board FIG. 36, in addition to the wiring instruction lines, electric wire information 36b such as the type of electric wire, the length of the electric wire, the type of the connector, etc. constituting the wire harness is described corresponding to each wiring instruction line 36a. The
制御部２のＣＰＵは、プログラム３０に従って動作することにより、受付手段２０、電線選択手段２３、表示手段２１、決定手段２２、変換手段２４等として機能する。なお、制御部２の各手段２０〜２４は、全部又は一部がＡＳＩＣ（Application Specific Integrated Circuit）等のハードウエアによって実現されてもよい。 The CPU of the control unit 2 operates according to the program 30 to function as the receiving unit 20, the electric wire selection unit 23, the display unit 21, the determination unit 22, the conversion unit 24, and the like. In addition, all or a part of each means 20-24 of the control part 2 may be implement | achieved by hardware, such as ASIC (Application Specific Integrated Circuit).
受付手段２０は、車両を構成する部品のうち、ワイヤーハーネスを除いた部品の３次元ＣＡＤデータ３１、ハーネス情報３２及び部品情報３３を受け付ける。受付手段２０は、受け付けた３次元ＣＡＤデータ３１、ハーネス情報３２、部品情報３３を記憶部３に記憶する。 The receiving means 20 receives the three-dimensional CAD data 31, the harness information 32, and the component information 33 of the components excluding the wire harness among the components constituting the vehicle. The accepting unit 20 stores the accepted 3D CAD data 31, harness information 32, and component information 33 in the storage unit 3.
表示手段２１は、３次元ＣＡＤデータに基づいて、ワイヤーハーネスを除いた部品の立体画像を表示部５の画面に表示する。 The display unit 21 displays a three-dimensional image of the component excluding the wire harness on the screen of the display unit 5 based on the three-dimensional CAD data.
決定手段２２は、表示部５の画面に表示された立体画像の間の空間にワイヤーハーネスの立体画像を配線してワイヤーハーネスを構成する電線のルートを決定し、それをルート情報３５として記憶部３に記憶する。なお、ワイヤーハーネスのルートを決定する際のワイヤーハーネスの立体画像として、電線の中心軸を表す中心線を用いてもよい。 The determination means 22 determines the route of the wire constituting the wire harness by wiring the three-dimensional image of the wire harness in the space between the three-dimensional images displayed on the screen of the display unit 5, and stores it as route information 35. 3 is stored. In addition, you may use the centerline showing the center axis | shaft of an electric wire as a three-dimensional image of the wire harness at the time of determining the route | root of a wire harness.
電線選択手段２３は、決定手段２２によりワイヤーハーネスのルートが決定すると、電線ライブラリ３４を参照して、イニシャルコスト及びランニングコストに基づくトータルのコスト（以下、「ライフサイクルコスト」という。）に応じて電線の候補を選択する。例えば、イニシャルコストが高くともライフサイクルコストが抑えられる電線を選択する。 When the route of the wire harness is determined by the determining unit 22, the electric wire selecting unit 23 refers to the electric wire library 34 according to the total cost based on the initial cost and the running cost (hereinafter referred to as “life cycle cost”). Select wire candidates. For example, an electric wire that can suppress the life cycle cost even if the initial cost is high is selected.
電線選択手段２３が選択した電線の候補が複数ある場合は、複数の電線が表示手段２１によって画面に表示される。そして、複数の電線の候補から実際に用いる電線は、利用者の選択に基づいて電線選択手段２３が決定する。 When there are a plurality of wire candidates selected by the wire selection means 23, the plurality of wires are displayed on the screen by the display means 21. And the electric wire actually used from the some electric wire candidate is determined by the electric wire selection means 23 based on a user's selection.
変換手段２４は、決定手段２２によってルート及び電線選択手段２３によって電線が決定されたワイヤーハーネスを２次元状に展開したハーネスボード図３６に変換する。 The conversion means 24 converts the wire harness whose route is determined by the route and the wire selection means 23 by the determination means 22 into a harness board diagram 36 developed two-dimensionally.
図２（ａ）及び（ｂ）は、電線の構成の一例を示す概略斜視図である。図２（ａ）に示す電線７ａは、撚り線による複数の導体７０ａ、絶縁性の被覆層７１ａ及び外層７２ａを有する。電線を構成する複数の導体７０ａの断面の総面積を導体サイズＳａとする。 2A and 2B are schematic perspective views illustrating an example of the configuration of the electric wire. The electric wire 7a shown to Fig.2 (a) has the some conductor 70a by the strand wire, the insulating coating layer 71a, and the outer layer 72a. A total area of cross sections of the plurality of conductors 70a constituting the electric wire is defined as a conductor size Sa.
また、図２（ｂ）に示す電線７ｂは、電線７ａに比べて撚り線の数の多い複数の導体７０ｂ、絶縁性の被覆層７１ｂ及び外層７２ｂを有する。電線を構成する複数の導体７０ｂの断面の総面積を導体サイズＳｂとすると、Ｓｂ＞Ｓａとなる。一般的に電線の長さが同じであれば、導体サイズが大きくなると通電ロスが減少する。一方、導体サイズが大きくなると重量増、価格増となる。 Moreover, the electric wire 7b shown in FIG.2 (b) has the some conductor 70b with many twisted wires compared with the electric wire 7a, the insulating coating layer 71b, and the outer layer 72b. When the total area of the cross sections of the plurality of conductors 70b constituting the electric wire is the conductor size Sb, Sb> Sa. In general, if the lengths of the electric wires are the same, the energization loss decreases as the conductor size increases. On the other hand, as the conductor size increases, the weight and price increase.
図３は、電線ライブラリ３４の構成例を示す概略図である。電線ライブラリ３４は、複数の電線を識別するための電線ＩＤと、導体サイズと、イニシャルコストを計算するための価格とを有する。また、電線ライブラリ３４は、図示していないが許容電流や電圧降下等の安全上の規定条件を有する。また、電線ライブラリ３４は、耐熱性、耐油性、耐放射線性、屈曲性等の電線の特性を有していてもよい。その他、耐薬性、耐水性、耐ガス性、耐炎性、耐爆性等の仕様雰囲気、捻回の程度、頻度、期間や、移動、振動、衝撃、伸縮、圧縮等の程度、頻度、期間等の使用方法を有していてもよい。 FIG. 3 is a schematic diagram illustrating a configuration example of the wire library 34. The wire library 34 has a wire ID for identifying a plurality of wires, a conductor size, and a price for calculating an initial cost. In addition, the wire library 34 has safety stipulated conditions such as allowable current and voltage drop although not shown. Moreover, the electric wire library 34 may have electric wire characteristics such as heat resistance, oil resistance, radiation resistance, and flexibility. Other specifications such as chemical resistance, water resistance, gas resistance, flame resistance, explosion resistance, etc., degree of twist, frequency, duration, degree of movement, vibration, impact, expansion, contraction, compression, frequency, duration, etc. May be used.
（実施の形態の動作）
次に、本実施の形態の動作の一例を説明する。
(Operation of the embodiment)
Next, an example of the operation of the present embodiment will be described.
（１）３次元ＣＡＤデータの受付
受付手段２０は、例えば入力部４のディスクドライブから、車両を構成する部品のうち、ワイヤーハーネスを除いた部品の３次元ＣＡＤデータ３１、ハーネス情報３２及び部品情報３３を受け付けし、３次元ＣＡＤデータ３１、ハーネス情報３２及び部品情報３３を記憶部３に記憶する。なお、ハーネス情報３２は、未確定の要素を含むものであってもよい。
(1) Acceptance of 3D CAD data The accepting means 20 is, for example, 3D CAD data 31, harness information 32, and part information of a part excluding a wire harness among parts constituting a vehicle from a disk drive of the input unit 4. 33 is received, and the three-dimensional CAD data 31, the harness information 32, and the component information 33 are stored in the storage unit 3. The harness information 32 may include undetermined elements.
（２）ワイヤーハーネスのルートの決定
表示手段２１は、３次元ＣＡＤデータに基づいて、ワイヤーハーネスを除いた部品の立体画像を表示部５の画面に表示する。
(2) Determination of the route of the wire harness The display unit 21 displays a three-dimensional image of the part excluding the wire harness on the screen of the display unit 5 based on the three-dimensional CAD data.
図４は、表示部５の画面に表示された車両立体画像の一例を示す斜視図である。車両立体画像１００には、車両の外装１１１、内部フレーム１１２、台車１１３、車輪１１４、座席１１５等の構造体や、制御盤１２１、空調機器１２２、照明器具１２３等の電気機器等の各立体画像が含まれる。 FIG. 4 is a perspective view illustrating an example of a vehicle stereoscopic image displayed on the screen of the display unit 5. The vehicle three-dimensional image 100 includes three-dimensional images of structures such as a vehicle exterior 111, an internal frame 112, a carriage 113, wheels 114, and a seat 115, and electrical devices such as a control panel 121, an air conditioner 122, and a lighting fixture 123. Is included.
決定手段２２は、表示部５の画面に表示された立体画像の間の空間にワイヤーハーネスの立体画像を配線してワイヤーハーネスのルートを決定する。具体的には、決定手段２２は、入力部４のマウス等の操作に基づいて、ワイヤーハーネスを構成する電線の複数の経由点の３次元座標を確定してルートを決定する。決定手段２２は、ワイヤーハーネスごとに電線の経由点の３次元座標をルート情報３５として記憶部３に記憶する。 The determination means 22 determines the route of the wire harness by wiring the stereoscopic image of the wire harness in the space between the stereoscopic images displayed on the screen of the display unit 5. Specifically, the determination means 22 determines the route by determining the three-dimensional coordinates of a plurality of via points of the electric wires constituting the wire harness based on the operation of the mouse or the like of the input unit 4. The determination unit 22 stores the three-dimensional coordinates of the via points of the electric wires as route information 35 in the storage unit 3 for each wire harness.
（３）電線の選択
次に、電線選択手段２３は、決定手段２２によりワイヤーハーネスのルートが決定すると、記憶部３に記憶されたハーネス情報３２及び電線ライブラリ３４を参照してルートに使用可能な電線の候補を選択する。例えば、ハーネス情報３２に記載された接続先の情報から必要な許容電流や電圧降下等の安全上の規定を満たす範囲内で電線ライブラリ３４の電線から電線の候補を選択する。また、ルートが予め定めた程度以上の屈曲、捻回等を含む場合は屈曲、捻回等に耐えうる電線の候補を電線ライブラリ３４から選択する。
(3) Selection of electric wire Next, when the route of the wire harness is determined by the determining unit 22, the wire selecting unit 23 can be used for the route with reference to the harness information 32 and the electric wire library 34 stored in the storage unit 3. Select wire candidates. For example, wire candidates are selected from the wires in the wire library 34 within a range satisfying safety regulations such as necessary allowable current and voltage drop from the information on the connection destination described in the harness information 32. If the route includes bending, twisting, or the like exceeding a predetermined level, a wire candidate that can withstand bending, twisting, etc. is selected from the wire library 34.
次に、電線選択手段２３は、選択した電線の候補を用いた場合のイニシャルコスト及びランニングコストを算出する。まず、イニシャルコストは、電線ライブラリ３４の電線それぞれの価格と、ルートの長さとを乗じることで求まる。 Next, the electric wire selection means 23 calculates an initial cost and a running cost when the selected electric wire candidate is used. First, the initial cost is obtained by multiplying the price of each wire in the wire library 34 and the length of the route.
また、ランニングコストは、電線の通電ロスと使用期間とを乗じることで求まる。通電ロスは電線の材質、ルートの長さ及び導体サイズから算出される。なお、電線を使用した場合に、使用期間に排出されるＣＯ２排出量をランニングコストに加算してもよい。また、電線の選択は車両の重量にも影響するため、電線の重量増に伴うエネルギー消費をランニングコストに加算してもよい。 In addition, the running cost is obtained by multiplying the power loss of the electric wire and the period of use. The energization loss is calculated from the material of the wire, the length of the route, and the conductor size. Incidentally, when using the electric wire, the CO 2 emissions emitted into use period may be added to the running cost. Moreover, since the selection of the electric wire also affects the weight of the vehicle, the energy consumption accompanying the increase in the weight of the electric wire may be added to the running cost.
以上のように求めたイニシャルコスト及びランニングコストと、電線の導体サイズとは以下の図５に示すような関係を有する。 The initial cost and running cost obtained as described above and the conductor size of the electric wire have a relationship as shown in FIG. 5 below.
図５は、電線の導体サイズとコストとの関係を示すグラフ図である。電線の導体サイズが増加すると、図中に示す点Ａ１、Ａ２、Ａ３、Ａ４のようにイニシャルコストが増加する。また、電線の導体サイズが増加すると、図中に示す点Ｂ１、Ｂ２、Ｂ３、Ｂ４のようにランニングコストが減少する。イニシャルコスト及びランニングコストの両者を考慮したトータルのコストがライフサイクルコストであり、図中に示す点Ｃ１、Ｃ２、Ｃ３、Ｃ４のように振る舞い、図５の例では点Ｃ２においてコストが最小となる。 FIG. 5 is a graph showing the relationship between the conductor size of the electric wire and the cost. When the conductor size of the electric wire increases, the initial cost increases like points A 1 , A 2 , A 3 , and A 4 shown in the figure. Further, when the conductor size of the electric wire increases, the running cost decreases like points B 1 , B 2 , B 3 , and B 4 shown in the figure. An initial cost and cost life cycle costs of total considering both running costs, behaves like a C 1, C 2, C 3 , C 4 points shown in the figure, at the point C 2 in the example of FIG. 5 Cost is minimized.
従って、電線選択手段２３は、点Ｃ２に対応する導体サイズが１４ｍｍの電線の候補を使用する電線に決定する。この選択動作はワイヤーハーネスのすべての電線について行われる。なお、電線選択手段２３は、入力部４のマウス等の操作に基づいて、複数の電線の候補から実際に使用される電線を決定するようにしてもよい。電線選択手段２３は、決定された電線の情報をハーネス情報３２として記憶部３に記憶する。 Accordingly, the wire selection means 23, conductor size corresponding to the point C 2 is determined to the wire to use the 14mm of wire candidate. This selection operation is performed for all the wires of the wire harness. The electric wire selection means 23 may determine the electric wire that is actually used from a plurality of electric wire candidates based on the operation of the mouse or the like of the input unit 4. The electric wire selection unit 23 stores the determined electric wire information as harness information 32 in the storage unit 3.
（４）ハーネスボード図の作成
変換手段２４は、記憶部３に記憶されているハーネス情報３２及びルート情報に基づいて、決定手段２２によってルートが決定されたワイヤーハーネスを、布線指示線として２次元状に展開したハーネスボード図３６に変換し、そのハーネスボード図３６を記憶部３に記憶する。
(4) Creation of harness board diagram The converting means 24 uses the wire harness whose route is determined by the determining means 22 based on the harness information 32 and route information stored in the storage unit 3 as a wiring instruction line. The harness board is converted into a three-dimensional harness board figure 36 and the harness board figure 36 is stored in the storage unit 3.
図６は、ハーネスボード図３６の一例を示す図である。ハーネスボード図３６には、ワイヤーハーネスを構成する電線の布線位置を実際の寸法で直線化した布線指示線３６ａと、使用される電線の情報３６ｂとが示されている。 FIG. 6 is a diagram showing an example of the harness board FIG. Harness board FIG. 36 shows a wiring instruction line 36a obtained by linearizing the wiring positions of the electric wires constituting the wire harness with actual dimensions, and information 36b of the electric wires used.
制御部２は、入力部４のキーボード等の操作に基づいて、記憶部３に記憶されているハーネスボード図３６を通信部６を介してプリンタにより用紙に印刷する。印刷されたハーネスボード図３６は、木製のハーネスボードに貼り付けられ、ワイヤーハーネスの製作に供される。 Based on the operation of the keyboard or the like of the input unit 4, the control unit 2 prints the harness board diagram 36 stored in the storage unit 3 on a sheet by the printer via the communication unit 6. The printed harness board FIG. 36 is affixed to a wooden harness board and used for manufacturing a wire harness.
（実施の形態の作用、効果）
本実施の形態によれば、以下の作用、効果を奏する。
（ａ）ワイヤーハーネスのルートと部品の環境情報及び配置とに基づいて、ワイヤーハーネスに用いることのできる電線の候補を選択し、これらの電線の候補のライフサイクルコストを算出して、コストが最小となる電線の候補を使用する電線として決定するため、コストを考慮したワイヤーハーネスの設計の工程が簡略化される。
従来は許容電流や電圧降下等の安全上の規定を満たす範囲内で、ハーネスの重量及びイニシャルコストを抑えるために導体サイズが最小の電線（図５の点Ａ１）を選択していたため、イニシャルコスト及びランニングコストを考慮したライフサイクルコストは図５の点Ｃ１のコストとなり、最小とはなっていなかった。
（ｂ）新型車両のように現物が存在しない場合でも、実際の電線が手元にない場合でも、画面上でワイヤーハーネスの配線シミュレーションを行えるので、ワイヤーハーネスの設計が可能になる。
（ｃ）自動車と比べて鉄道車両は、多くが床下配線のため、実車合わせによる加工作業が多いが、本実施の形態によれば、実車合わせによる加工作業を少なくすることができ、ワイヤーハーネスの設計が極めて容易になる。
(Operation and effect of the embodiment)
According to the present embodiment, the following operations and effects are achieved.
(A) Based on the route of the wire harness and the environmental information and arrangement of the parts, the candidate of the electric wire that can be used for the wire harness is selected, the life cycle cost of these electric wire candidates is calculated, and the cost is minimized. Therefore, the wire harness design process considering the cost is simplified.
In the past, the wire with the smallest conductor size (point A 1 in FIG. 5) was selected in order to reduce the weight and initial cost of the harness within a range that satisfies safety regulations such as allowable current and voltage drop. The life cycle cost in consideration of the cost and the running cost is the cost at the point C 1 in FIG. 5 and is not the minimum.
(B) Even when the actual product does not exist as in the new model vehicle, even when the actual electric wire is not at hand, the wiring simulation of the wire harness can be performed on the screen, so that the wire harness can be designed.
(C) Compared to automobiles, many railcars have underfloor wiring, so there are many processing operations by actual vehicle alignment, but according to this embodiment, processing operations by actual vehicle alignment can be reduced, Design becomes extremely easy.
［他の変形例］
なお、本発明の実施の形態は、上記各実施の形態に限定されず、本発明の要旨を逸脱しない範囲内において種々な実施の形態が可能である。例えば、上記実施の形態では導体サイズとコストとの関係に着目し、コストを抑える導体サイズを選択したが、電線の特性や使用方法とコストとの関係に着目して、コストを抑える特性や使用方法を選択してもよい。
[Other variations]
The embodiments of the present invention are not limited to the above-described embodiments, and various embodiments are possible without departing from the scope of the present invention. For example, in the above embodiment, the conductor size and the cost are selected by paying attention to the relationship between the conductor size and the cost. A method may be selected.
また、本発明の実施の形態の構成要素の一部を本発明の要旨を逸脱しない範囲内において省いてもよい。 Moreover, you may omit a part of component of embodiment of this invention in the range which does not deviate from the summary of this invention.
また、本発明の要旨を変更しない範囲内で、上記実施の形態の組立工程において、工程の追加、削除、変更、入替え等が可能である。 In addition, within the scope of the present invention, it is possible to add, delete, change, and replace processes in the assembly process according to the above embodiment.
本発明は、鉄道車両用ハーネス、自動車用ハーネス、航空機用ハーネス、医療用ハーネス、機器内ハーネス等に適用可能である。 The present invention is applicable to railway vehicle harnesses, automobile harnesses, aircraft harnesses, medical harnesses, in-device harnesses, and the like.
１…ワイヤーハーネス設計装置、２…制御部、３…記憶部、４…入力部、５…表示部、
６…通信部、２０…受付手段、２１…表示手段、２１ａ…画面、２２…決定手段、
２３…電線選択手段、２４…変換手段、３０…プログラム、３１…３次元ＣＡＤデータ、
３２…ハーネス情報、３３…部品情報、３４…電線ライブラリ、３５…ルート情報、
３６…ハーネスボード図、３６ａ…布線指示線、３６ｂ…電線の情報、
７０ａ、７０ｂ…導体、７１ａ、７１ｂ…被覆層、７２ａ、７２ｂ…外層
１００・・・車両立体画像、１１１…外装、１１２…内部フレーム、１１３・・・台車、
１１４…車輪、１１５…座席、１２１…制御盤、１２２…空調機器、１２３…照明器具
DESCRIPTION OF SYMBOLS 1 ... Wire harness design apparatus, 2 ... Control part, 3 ... Memory | storage part, 4 ... Input part, 5 ... Display part,
6 ... communication unit, 20 ... accepting means, 21 ... display means, 21a ... screen, 22 ... determination means,
23 ... Electric wire selection means, 24 ... Conversion means, 30 ... Program, 31 ... Three-dimensional CAD data,
32 ... Harness information, 33 ... Parts information, 34 ... Electric wire library, 35 ... Route information,
36 ... Harness board diagram, 36a ... Arrangement line, 36b ... Electric wire information,
70a, 70b ... conductor, 71a, 71b ... coating layer, 72a, 72b ... outer layer 100 ... vehicle stereoscopic image, 111 ... exterior, 112 ... inner frame, 113 ... cart,
114 ... wheels, 115 ... seats, 121 ... control panel, 122 ... air conditioning equipment, 123 ... lighting fixtures
Claims (2)
前記部品の３次元情報に基づいて、前記ワイヤーハーネスを除いた部品の各立体画像を画面に表示する表示手段と、
前記ハーネス情報に基づいて、前記画面に表示された前記各立体画像の間の空間に前記ワイヤーハーネスの立体画像を配線して前記ワイヤーハーネスのルートを決定する決定手段と、
前記ハーネス情報の接続先の情報に基づき、前記ワイヤーハーネスを構成する電線の候補として予め用意した複数種類の電線から使用可能な電線を選択し、電線の候補のイニシャルコスト及びランニングコストに基づいて使用する電線を選択する電線選択手段と、
を備えたワイヤーハーネス設計装置。 Accepting means for receiving harness information including three-dimensional information including shape information and position information of parts excluding the wire harness, and connection destination of the wire harness among the parts constituting the moving body;
Display means for displaying each stereoscopic image of the component excluding the wire harness on the screen based on the three-dimensional information of the component;
Based on the harness information, a determination unit that determines a route of the wire harness by wiring a stereoscopic image of the wire harness to a space between the stereoscopic images displayed on the screen.
Based on the information on the connection destination of the harness information, select a usable wire from a plurality of types of wires prepared in advance as candidates for the wire constituting the wire harness, and use based on the initial cost and running cost of the wire candidate Electric wire selection means for selecting electric wires to be performed;
Wire harness design device equipped with.
前記部品の３次元情報に基づいて、前記ワイヤーハーネスを除いた部品の各立体画像を画面に表示し、
前記ハーネス情報に基づいて、前記画面に表示された前記各立体画像の間の空間に前記ワイヤーハーネスの立体画像を配線して前記ワイヤーハーネスのルートを決定し、
前記ハーネス情報の接続先の情報に基づき、前記ワイヤーハーネスを構成する電線の候補として予め用意した複数種類の電線から使用可能な電線を選択し、電線の候補のイニシャルコスト及びランニングコストに基づいて使用する電線を選択する、
工程を含むワイヤーハーネス設計方法。
Among the parts that make up the moving body, three-dimensional information including shape information and position information of parts excluding the wire harness, environment information of the parts, and harness information including the connection destination of the wire harness are received,
Based on the three-dimensional information of the component, each stereoscopic image of the component excluding the wire harness is displayed on the screen,
Based on the harness information, the route of the wire harness is determined by wiring the three-dimensional image of the wire harness to the space between the three-dimensional images displayed on the screen,
Based on the information on the connection destination of the harness information, select a usable wire from a plurality of types of wires prepared in advance as candidates for the wire constituting the wire harness, and use based on the initial cost and running cost of the wire candidate Select the wire to be used,
A wire harness design method including a process.
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