JP2008123326A - Device, method, and program for supporting wired layout design - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To support the design of a wired layout which satisfies a wire harness mounting requirement. <P>SOLUTION: A wired layout design supporting device supports the design of the wired layout when a wire harness is developed on a wired plate. The device comprises: an electric wire setting means 11a for setting a reference electric wire, corresponding to the bending point of the wire harness, and an electric wire to be bent, among the plurality of electric wires constituting the wire harness; a component information acquiring means 11b for acquiring component information corresponding to the set reference electric wire and electric wire to be bent; a mounting requirement information acquiring means 11c for acquiring mounting requirement information corresponding to the wire harness; an allowance range calculating means 11d for calculating the bending angle allowance range of the electric wire to be bent with respect to the reference electric wire at the bending point, base on the acquired component information and mounting requirement information; and a design supporting means 11e for supporting the design of the wired layout, so as to allow the bending angle of the electric wire to be bent at the bending point to be within the bending angle allowance range. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a wiring layout design support apparatus, a method, and a program for supporting a wiring layout design showing a wiring plan shape when a three-dimensional wire harness is developed on a wiring board.

  Various electronic devices are mounted on automobiles or the like as moving bodies. For this reason, the automobile or the like is wired with a wire harness in order to transmit electric power from a power source or the like or a control signal from a computer or the like to the electronic device. The wire harness includes a plurality of electric wires and connectors attached to ends of the electric wires.

  The electric wire includes a conductive core wire and a covering portion made of an insulating synthetic resin that covers the core wire. The electric wire is a so-called covered electric wire. The connector includes a conductive terminal fitting and an insulating connector housing. The terminal fitting is attached to an end portion of the electric wire and is electrically connected to the core wire of the electric wire. The connector housing is formed in a box shape and accommodates the terminal fitting.

  When assembling the wire harness, the electric wire is first cut to a predetermined length, and then a terminal fitting is attached to the end of the electric wire. Connect wires as needed. Thereafter, the terminal fitting is inserted into the connector housing. Thus, the wire harness described above is assembled.

  The design of the wire harness is prepared in parallel with the design progress of the vehicle or the like in which the wire harness is routed. Usually, a route layout of a wire harness is requested by a manufacturer such as a vehicle (simply referred to as a car manufacturer), and a component manufacturer that receives the request uses a manufacturing jig to manufacture a wire harness that satisfies the request. Patent Document 1 discloses a wire harness design support system that accurately responds to frequent design changes and improves the design efficiency of the wiring board layout and the associated route layout plan.

  FIG. 14 shows one form of a conventional wire harness manufacturing jig (see Patent Document 1).

  The manufacturing jig 41 includes a rectangular wide substrate 42, a plurality of wiring jigs 43 erected on the substrate 42, a component shelf 44 disposed adjacent to the substrate 42, and a component shelf 44. The component case 45 is provided at least. A wiring board 46 is constituted by the substrate 42 and the plurality of wiring jigs 43.

  The wiring board 46 is supported by the leg 47 in an inclined manner. This is because the operator can easily and efficiently perform the wiring operation of the electric wire 48 on the wiring board 46 having a large depth. When the wiring board 46 is not inclined, the hand cannot reach the rear wiring jig 43 and the wiring workability is poor. In addition, about the wiring board with a narrow depth, it arrange | positions not horizontally but horizontally.

The wiring is to wire the electric wires 48 in a required shape along the wiring jigs 43 one by one. Parts such as a protective tube 49 and a protector are attached to the plurality of wired wires 48. Terminals (not shown) are crimped to the ends of the electric wires 48, the terminals are inserted into the connector housing, and the connector housing and the terminals constitute the connector 50. Further, the plurality of electric wires 48 are converged by the vinyl tape 51 to complete the wire harness 52.
JP 2004-46815 A

  Further, in the wiring layout design in the conventional wiring board described above, the wiring harness is governed in the wiring board 46 (requirement 1), the assembly workability at the time of manufacture is satisfied (requirement 2), the branch branch Is designed so as to satisfy the three requirements of being arranged in an average distribution (requirement 3).

  Therefore, designing the wiring board layout of a three-dimensional wire harness to meet these requirements results in flattening while bending the three-dimensional wire harness. When the wire harness manufactured in this way is mounted on a vehicle or the like, there is a problem that the shape requested by a car manufacturer or the like is not obtained due to the rigidity of the wire harness.

  Specifically, in FIG. 15, the wire harness W assembled so as to be substantially perpendicular to the trunk line T at the branch point P1 is attached to the vehicle or the like from the branch line B to the attachment point P2 from the branch point P1. Can be folded. At this time, when the harness length L10 of the branch line B from the branch point P1 to the mounting point P2 on the branch line B is compared with the straight line distance L11 that connects the branch point P1 and the mounting point P2 with a straight line, the rigidity of the branch portion The harness length L10 and the linear distance L11 may not coincide with each other depending on the state of convergence by the tape.

  Thus, if there is an error between the position on the wiring board at the time of manufacture and the position at the time of mounting, for example, the branch line of the wire harness does not reach the predetermined position, and a problem such as an abnormal mounting shape has occurred. It was. That is, in the conventional wiring board layout design, there is a case where the planar wire harness manufactured by the wiring board cannot be reproduced in the route layout of the wire harness which is the mounting shape.

  Therefore, in view of the above-described problems, the present invention provides a wiring layout design support device, a wiring layout design support method, and a wiring layout that can support the design of a wiring board layout that satisfies the mounting requirements of the wire harness. The issue is to provide a design support program.

  The wiring layout design support device according to claim 1, which has been made according to the present invention to solve the above-mentioned problems, is obtained when a three-dimensional wire harness is developed on a wiring board as shown in the basic configuration diagram of FIG. 1. A wiring layout design support device for supporting a wiring layout design showing a wiring plane shape, and a reference wire corresponding to a bending point of the wire harness and a bending object among a plurality of wires constituting the wire harness An electric wire setting unit 11a for setting an electric wire, a component information acquisition unit 11b for acquiring component information corresponding to a reference electric wire and a bending target electric wire set by the electric wire setting unit 11a, and acquisition requirement information corresponding to the wire harness Mounting requirement information acquisition means 11c, component information acquired by the component information acquisition means 11b, and mounting information acquired by the mounting requirement information acquisition means 11c. Based on the requirement information, allowable tolerance range calculation means 11d for calculating a bending angle allowable tolerance range of the bending target electric wire with respect to the reference electric wire at the bending point; and a bending angle of the bending target electric wire at the bending point And design support means 11e for supporting the design of the wiring layout so as to be within the allowable bending angle tolerance range calculated by the tolerance range calculation means 11d.

  According to the wiring layout design support device of the present invention described in claim 1, the reference electric wire corresponding to the bending point of the wire harness and the bending target electric wire to be bent with respect to the reference electric wire are set by the electric wire setting means 11a. The component information corresponding to each electric wire is acquired by the component information acquisition unit 11b. Then, mounting requirement information such as mounting quality corresponding to the wire harness, wire harness characteristics, branch angle upon mounting (that is, ideal bending angle), mounting tolerance, and the like are acquired by the mounting requirement information acquiring unit 11c. Based on the component information and the mounting requirement information, the allowable tolerance range calculation means 11d calculates the allowable bending angle range of the bending target electric wire with respect to the reference electric wire at the bending point. Then, the design support means 11e supports the design of the wiring layout so that the bending angle of the electric wire to be bent at the bending point falls within the allowable bending angle tolerance range.

  In order to solve the above-mentioned problem, the invention according to claim 2 is the wiring layout design support device according to claim 1, wherein the design support means 11e is It is a means for assisting the design of the bending angle based on a bending angle allowable tolerance range and a bending angle at the time of mounting indicated by the mounting requirement information.

  According to the wiring layout design support device of the present invention described in claim 2 above, when the allowable tolerance range calculation means 11d calculates the allowable bending angle range of the bending target electric wire, the allowable bending angle tolerance range and the attachment Based on the bending angle at the time of mounting indicated by the requirement information, the design of the bending angle is supported by the design support means 11e.

  The invention according to claim 3, which has been made to solve the above problem, is the wiring layout design support device according to claim 1 or 2, as shown in the basic configuration diagram of FIG. The bending angle setting means 11e1 for setting the bending angle of the bending target electric wire, and whether or not the bending angle set by the bending angle setting means 11e1 is within the bending angle allowable tolerance range calculated by the allowable tolerance range calculating means 11d. And a determination result output unit 11e3 for outputting a determination result of the determination unit 11e2.

  According to the wiring layout design support device of the present invention described in claim 3 above, when the bending angle of the electric wire to be bent is set by the bending angle setting means 11e1, the bending angle is within the allowable bending angle tolerance range. It is determined whether or not. And the determination result is output by the determination result output means 11e3. The bending angle of the bending target electric wire is set by various methods such as automatic setting by software or setting an angle input by a designer or the like.

  The invention according to claim 4, which has been made to solve the above problems, is the wiring layout design support device according to claim 1, as shown in a basic configuration diagram of FIG. 1, Bending point setting means 11f for setting the bending point of the wire harness so as to fit in the wiring board is provided, and the electric wire setting means 11a corresponds to the bending point set by the bending point setting means 11f. It is a means which sets an electric wire and the said bending object electric wire, It is characterized by the above-mentioned.

  According to the wiring layout design support device of the present invention described in claim 4, when the bending point of the wire harness is set by the bending point setting means 11f so as to be within the wiring board, it corresponds to the bending point. The reference electric wire to be bent and the electric wire to be bent are set by the electric wire setting means 11a.

  The wiring layout design support method according to claim 5, which is made according to the present invention to solve the above-mentioned problems, is a wiring layout design showing a wiring planar shape when a three-dimensional wire harness is developed on a wiring board. A wiring layout design support method for supporting a wire setting process of setting a reference wire and a bending target wire corresponding to a bending point of the wire harness among a plurality of wires constituting the wire harness, and the setting The component information acquisition process for acquiring the component information corresponding to the reference wire and the bending target wire, the mounting requirement information acquisition process for acquiring the mounting requirement information corresponding to the wire harness, the acquired component information and the mounting requirement information An allowable tolerance range calculation that calculates a bending angle allowable tolerance range of the bending target electric wire with respect to the reference electric wire at the bending point based on And degree bending angle of the target bending wire in the bending point and having an a design support step of supporting the wiring layout design to be within the bending angle tolerance range the calculated.

  According to the wiring layout design support method of the present invention described in claim 5, the reference wire corresponding to the bending point of the wire harness for designing the wiring layout and the bending target wire to be bent with respect to the reference wire are set. Then, component information corresponding to each electric wire is acquired, and mounting requirement information such as mounting quality, wire harness characteristics, and tolerance at the time of mounting corresponding to the wire harness is acquired. Then, when the bending angle allowable tolerance range of the bending target electric wire with respect to the reference electric wire at the bending point is calculated based on the component information and the mounting requirement information, the wiring layout is designed so as to be within the bending angle allowable tolerance range. Be supported.

  The wiring layout design support program according to claim 6, which has been made in accordance with the present invention to solve the above-mentioned problems, is obtained when a three-dimensional wire harness is developed on a wiring board as shown in the basic configuration diagram of FIG. 1. A wiring layout design support program for causing a computer to function as a means for supporting a wiring layout design indicating a wiring plane shape, wherein a bending point of the wire harness among a plurality of electric wires constituting the wire harness A wire setting unit 11a for setting a reference wire and a bending target wire corresponding to the wire, a component information acquiring unit 11b for acquiring component information corresponding to the reference wire and the bending target wire set by the wire setting unit 11a, and the wire harness The acquisition requirement information acquisition unit 11c for acquiring the installation requirement information corresponding to the information acquired by the component information acquisition unit 11b Based on product information and mounting requirement information acquired by the mounting requirement information acquiring unit 11c, an allowable tolerance range calculating unit 11d that calculates a bending angle allowable tolerance range of the bending target electric wire with respect to the reference electric wire at the bending point; A design support means 11e for supporting the design of the wiring layout so that the bending angle of the bending target wire at the bending point is within the bending angle allowable tolerance range calculated by the allowable tolerance range calculating means 11d; Is made to function.

  According to the wiring layout design support program of the present invention described in claim 6 above, the computer can bend the reference wire corresponding to the bending point of the wire harness for designing the wiring layout and the bending object to be bent with respect to the reference wire. Set the wires and acquire the component information corresponding to each wire, as well as information on mounting requirements such as mounting quality, wire harness characteristics, branch angle on mounting (ideal bending angle), tolerance at mounting, etc. get. Then, when the bending angle allowable tolerance range of the bending target wire with respect to the reference electric wire at the bending point is calculated based on the component information and the mounting requirement information, the wiring layout design is supported so as to be within the bending angle allowable tolerance range. .

  As described above, according to the first, fifth, and sixth aspects of the present invention, the bending angle of the bending target wire is within the bending angle tolerance range calculated based on the component information and the mounting requirement information. Since the wiring layout design is supported, even if a wire harness manufactured on a wiring board is attached to a vehicle, etc., the harness will not reach, and problems such as abnormal mounting shape will be prevented. Can do. Therefore, since it is possible to support the design of the wiring board layout that satisfies the mounting requirements of the wire harness, the wire harness manufactured on the wiring board can be reliably reproduced in a three-dimensional shape and the mounting quality can be guaranteed. .

  According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the bending of the bending target electric wire is based on the calculated bending angle allowable tolerance range and the bending angle at the time of mounting which is an ideal bending angle. Since the design of the angle is supported, the designer can perform the design while referring to the ideal bending angle, which can contribute to an improvement in the efficiency of the wiring layout design.

  According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or 2, when the bending angle of the electric wire to be bent is set, whether the bending angle information is within the allowable bending angle tolerance range. Since the determination result is output to the designers, etc., the bending angle of the bending target wire can be reliably kept within the allowable bending angle tolerance range. The manufactured wire harness can be reliably reproduced in a three-dimensional shape and the mounting quality can be guaranteed.

  According to the invention of claim 4, in addition to the effect of the invention of any one of claims 1 to 3, the bending point of the wire harness is set so as to fit in the wiring board, and the bending point is set to the bending point. Since the corresponding reference wire and bending target wire are set, the wiring harness can be wired without protruding from the wiring board, and the bending angle of the bending target wire is surely within the allowable bending angle tolerance range. Since it can be accommodated, the wire harness manufactured on the wiring board can be reliably reproduced in a three-dimensional shape and the mounting quality can be guaranteed.

  Hereinafter, one implementation in the case of supporting the design of the wiring layout which shows the wiring plane form when a wire harness (W / H) is developed on a wiring board using the wiring layout design support apparatus according to the present invention. A form is demonstrated with reference to drawings of FIGS. In addition, the same code | symbol is attached | subjected to the part which is the same as that of what was demonstrated in the prior art, or the detailed description is abbreviate | omitted.

  As shown in FIG. 2A, the wire harness W is routed in a vehicle or the like in a three-dimensional shape (three-dimensional shape). The wire harness W includes a plurality of electric wires (electric wire bundles) W1 and a connector W2 attached to an end portion of the electric wires W1. The electric wire W1 includes a conductive core wire and a covering portion made of an insulating synthetic resin that covers the core wire. The connector W2 includes a conductive terminal fitting and an insulating connector housing.

  As shown in FIGS. 2B and 3, the wire harness W includes a trunk line Wm and a branch line Wb branched from the trunk line Wm. In the best mode, a case where the branch points P11 to P15 where the branch line Wb branches from the main line Wm and the bending point P16 where the main line Wm is bent are used as the bending point P1 will be described. That is, at the bending point P1 with respect to the branch points P11 to P15, the trunk line Wm corresponds to the reference electric wire, the branch line Wb corresponds to the bending target electric wire, and at the bending point P1 corresponding to the bending point P16, the main line Wm corresponds to the reference line and It corresponds to the electric wire to be bent.

  The branch line Wb intersects the trunk line Wm at a mounting (on the path) branch angle θr. That is, in the three-dimensional wire harness W, the attachment branch angle θr is set for each branch line Wb. And the wiring layout design support apparatus 10 mentioned later acquires those attachment branch angles (theta) r as bending angle information.

  Note that the bending point P1 can be set as a reference point for various electric wires to be bent, such as a bending point for bending to fit within the wiring board, and branch points P13 and P14 for branching the grandchild from the branch line Wb. . And the setting of the bending point P1 can be made into various different embodiments, such as making a designer select, and calculating automatically.

  In FIG. 4, the wiring layout design support device 10 uses a well-known personal computer (personal computer), and has a central processing unit (CPU) 11 that controls the operation of the entire device in accordance with a predetermined program. Have. The CPU 11 is a readable / writable memory having a ROM 12 which is a read-only memory storing a program for the CPU 11 via the bus B, and a work area for storing various data necessary for the processing work of the CPU 11. A certain RAM 13 is connected.

  A storage device 14 is connected to the CPU 11 via a bus B, and a hard disk device, a large-capacity memory, or the like is used as the storage device 14. As shown in FIG. 5, the storage device 14 stores various information such as a wiring layout design support program P, three-dimensional information D1, mounting requirement information D2, component information D4, wiring board information D3, and two-dimensional information D5. Storage area. The wiring layout design support program P is installed from a CD-ROM or the like, or downloaded via a network and stored in the storage device 14.

  The wiring layout design support program P functions as a CPU (computer) 11 as a means for supporting the design of the wiring layout indicating the wiring plane shape when the three-dimensional wire harness W is developed on the wiring board. A wiring layout design support program P to be executed, and among the plurality of electric wires W1, 2 constituting the wire harness W, a reference electric wire Wm and a bending target electric wire Wb corresponding to the bending point P1 of the wire harness W are set. Electric wire setting means, component information acquisition means for acquiring component information D4 corresponding to the reference electric wire Wm and bending target electric wire Wb set by the electric wire setting means, and mounting for acquiring mounting requirement information D4 corresponding to the wire harness W Requirement information acquisition means, component information D4 acquired by the component information acquisition means, and mounting requirements acquired by the mounting requirement information acquisition means Based on the information D4, an allowable tolerance range calculating means for calculating a bending angle allowable tolerance range of the bending target electric wire Wb with respect to the reference electric wire Wm at the bending point, and a bending angle of the bending target electric wire Wb at the bending point P1. The CPU 11 functions as a design support means for supporting the design of the wiring layout so as to be within the bending angle allowable tolerance range calculated by the allowable tolerance range calculation means. That is, the CPU 11 functions as the various means described above by executing the wiring layout design support program P.

  The three-dimensional information D1 includes three-dimensional shape data such as CAD (computer aided design) indicating the wire harness W shown in FIG. 2 and circuit diagram data of the wire harness W. The three-dimensional information D1 is provided corresponding to the product number or the like of the wire harness W, and is acquired and stored from a database determined in advance according to the design of the wiring layout, or stored in the storage device 14. It can be set as various different embodiments.

  The mounting requirement information D2 is information indicating mounting requirements, manufacturing requirements, and the like of the wire harness W requested by a vehicle manufacturer or the like, and is provided corresponding to the product number of the wire harness W and the like. The mounting requirement information D2 includes various data indicating the vehicle mounting quality of the wire harness W, the characteristics of the wire harness W, the branch angle on mounting, the tolerance when mounting the vehicle, and the like.

  The wiring board information D3 includes identification data indicating the type of wiring board, dimension data indicating the size of the wiring board (for example, length 900 mm × width 1400 mm, etc.), and wiring possible area data. ing. The wiring board information D3 is provided corresponding to the product number of the wire harness W and the like. In the best mode, a case will be described in which the layout design is supported so that the wire harness W fits within the area indicated by the possible wiring area data.

  The component information D4 has various data such as the product number, thickness, rigidity, mounting requirement, restraint state, and the like of the electric wires constituting the wire harness W, and these data are associated with the three-dimensional shape data. That is, it has a data structure that can specify the thickness, rigidity, and mounting requirements of an electric wire at an arbitrary point.

  As shown in FIG. 6, the two-dimensional information D5 includes wiring layout data indicating a wiring layout R indicating a wiring plane shape when the three-dimensional wire harness W is developed on the wiring board. . The two-dimensional information D5 is stored in the storage device 14 in association with the product number of the wire harness W, the wiring board 30, the bending angle allowable tolerance range data of the present invention, etc. according to the design of the wiring layout. In the present embodiment, the wiring layout R is simplified and only the wire harness W and the wiring board 30 are shown, but the present invention is not limited to this and is provided on the wiring board 30. It can also be set as the structure which shows a jig | tool etc.

  An input device 15, a communication device 16, a display device 17, and the like are connected to the CPU 11 via a bus B. The input device 15 has a keyboard, a mouse, and the like, and outputs input data to the CPU 11 according to an operation of a designer or the like. The communication device 16 uses a communication device such as a LAN card or a cellular phone modem. Then, the communication device 16 outputs the received information to the CPU 11 and transmits the information input from the CPU 11 to the designated transmission destination.

  As the display device 17, various display devices such as a known liquid crystal display and CRT are used. The display device 17 displays various information under the control of the CPU 11. That is, the display device 17 displays various screens that support the design of the two-dimensional layout based on the various pieces of information, and supports the design of the designer.

  Next, an example of layout design support processing when the above-described CPU 11 executes the wiring layout design support program P will be described with reference to the flowcharts of FIGS.

  In step S11, three-dimensional information D1 corresponding to the product number of the wire harness W instructed by the designer or the like is acquired from a predetermined database or the like and stored in the storage device 14, and in step S12, the wire harness W The wiring board information D3 corresponding to the wiring board 30 used for manufacturing is acquired from a predetermined database or the like and stored in the storage device 14, and then the process proceeds to step S13.

  In step S13 (bending point setting means), a bending point setting screen for setting the bending point P1 in the wire harness W on the path of the wire harness W so as to fit in the wiring board 30 is displayed on the display device 17, When the bending point data selected based on the bending point setting screen is input via the input device 15, the bending point data is stored in the storage device 14 in association with the three-dimensional information, and then the process proceeds to step S14. .

  Regarding the setting of the bending point P1, the wire harness W is connected to the wiring board in consideration of the size of the wiring board 30 and the like, which is automatically set as the bending point P1 by extracting a branch point from the three-dimensional information. It is possible to make various embodiments such as automatically setting the bending point P1 while setting the bending point P1 of the branch point and the electric wire W1 so as to be within 30.

  In step S14 (electric wire setting means), the reference electric wire and the bending target electric wire at the bending point P1 are set from the plurality of electric wires W1 constituting the wire harness W based on the set bending point data and the three-dimensional information. In step S15 (component information acquisition means), component information D4 corresponding to the set electric wire W1 is acquired from a predetermined database or the like and stored in the storage device 14, and then the process proceeds to step S16.

  In step S16, the mounting requirement information D2 corresponding to the wire harness W is acquired from a predetermined database or the like and stored in the storage device 14, and then the process proceeds to step S17.

  In step S17 (allowable tolerance range calculating means), the bending angle allowable tolerance range of the bending target wire with respect to the reference wire at the bending point P1 is calculated based on the mounting requirement information D2 and the component information D4 of the storage device 14, and the bending angle is calculated. The allowable tolerance range is stored in the storage device 14 in association with the bending point P1, and then the process proceeds to step S18.

  Here, as an example of a calculation method of the allowable bending angle tolerance range, the bending point P11 shown in FIG. 3 is the bending point P1, the main line Wm is the reference electric wire, the branch line Wb is the electric wire to be bent, and the bending on the wiring board 30 is performed. A case where the angle θ is set will be described.

  FIG. 9 shows the distance change amount that the wire harness W reaches due to the difference between the manufacturing bending angle θ and the mounting branch angle θd. In FIG. 9, the vertical axis represents the distance change amount (mm) that can be reached, and the horizontal axis represents the bending angle of the electric wire to be bent with respect to the reference electric wire. When mounting branch angle θd is set to 90 degrees, the amount of distance change reached is 0 mm, approximately -4 mm at 60,120 degrees, approximately -20 mm at 30,150 degrees, and so on. The amount of distance deformation that reaches as θd increases from 90 degrees increases.

  When the bending angle θ differs from the attachment branch angle θd, the distance reached by the branch wire Wb that is the bending target electric wire is shorter than the length of the bending target electric wire, unlike the harness length of the bending target electric wire. If the resulting error is smaller than the allowable dimensional tolerance of the path design, the dimension is accepted, and if it is larger, the dimension is defective.

  When the length requirement tolerance M of the bending target wire is set to −7.5 mm in the mounting requirement information, the angle difference with respect to the bending upper limit angle θu, the bending lower limit angle θb, and the mounting branch angle θr on the wiring board 30 The relationship with the deformation amount error can be expressed as in the graph of FIG.

  The bending lower limit angle θb is the bending angle θ on the wiring board 30 when the bending angle θ on the wiring board 30 is smaller than the branching angle on mounting, and the resulting error is equal to the allowable dimension tolerance of the path design. Show. Further, the bending upper limit angle θu is the bending angle on the wiring board 30 when the bending angle θ on the wiring board 30 is larger than the branching angle on mounting and the error caused thereby is equal to the allowable dimension tolerance of the path design. θ is shown.

From the above relationship, the allowable bending angle tolerance range can be calculated using the following equation.
Bending angle allowable tolerance upper limit Ru = bending upper limit angle θu−mounting branch angle θr Equation 1
Bending angle tolerance lower limit Rb = bending lower limit angle θb−mounting branching angle θr Equation 2
Bending angle tolerance tolerance range Rs = bending angle tolerance tolerance upper limit Ru−bending angle tolerance tolerance lower limit Rb Equation 3
That is, the wiring layout design support program P has a bending angle allowable tolerance range calculation program for calculating the equations 1 to 3 described above.

  In step S18, the support screen information G shown in FIG. 11 for displaying the calculated bending angle allowable tolerance range Rs, bending angle allowable tolerance upper limit Ru, and bending angle allowable tolerance lower limit Rb to support the design is generated. In S19, when the display device 17 is requested to display the support screen information G, the support screen information G is displayed on the display device 17, and then the process proceeds to step S20.

  The support screen information G displays a bending angle allowable tolerance range Rs, a bending angle allowable tolerance upper limit Ru, and a bending angle allowable tolerance lower limit Rb with respect to the reference electric wire, and the bending angle θ on the wiring board 30 is determined by the input device 15. It can be changed. The set bending angle θ is output from the input device 15 to the CPU 11 as bending angle information.

  In step S20 (bending angle setting means), it is determined whether or not the bending angle θ has been set based on the presence or absence of bending angle information from the input device 15. In the best mode, a case where a designer or the like is set based on the support screen information G will be described. However, the present invention is not limited to this, and the bending angle allowable tolerance range Rs is set by software. Various embodiments such as automatic setting can be made. If it is determined that it is not set (N in S20), this determination process is repeated to wait for the setting. On the other hand, if it is determined that it is set (Y in S20), the process proceeds to step S21 shown in FIG.

  In step S21, based on the input bending angle information, two-dimensional information indicating the wiring layout of the portion of the wire harness W corresponding to the bending point P1 is generated, and then the process proceeds to step S22. In the present embodiment, the case where the two-dimensional information D5 is generated stepwise will be described. However, the present invention is not limited to this, and layout portion information corresponding to the bending point P1 is generated. Various embodiments such as generating the two-dimensional information D5 when processing for all the bending points P1 is completed can be used.

  In step S <b> 22, it is determined whether or not the design for all the bending points P <b> 1 in the portion of the wire harness W that is wired to the wiring board 30 is completed. If it is determined that the process has not been completed (N in S22), the process returns to step S13 shown in FIG. 7, the next bending point P1 is set, and the above-described series of processing is executed for the bending point P1. The On the other hand, when it is determined that the design for all the bending points P1 is completed (Y in S22), the process proceeds to step S23.

  In step S23, two-dimensional information D5 indicating the wiring layout indicating the wiring plan shape when the three-dimensional wire harness W is developed on the wiring board 30 is stored in the storage device 14, and in step S24, the wiring is performed. When the display device 17 is requested to display the layout design completion information, the wiring layout design completion information is displayed on the display device 17 and the process ends.

  Next, an example of the operation (action) of the wiring layout design support apparatus 10 described above will be described below.

  When designing the wiring layout of the wire harness W, the wiring layout design support device 10 corresponds to each bending point P1 when the branch points P11 to P15 of the wiring harness W shown in FIG. 3 are set as the bending points P1. Then, a reference wire and a bending target wire are set, and a bending angle allowable tolerance range Rs shown in FIG. 11 for the bending target wire is calculated. Then, support screen information based on the allowable bending angle tolerance range Rs is generated and displayed on the display device 17. As a result, the designer or the like sets the bending angle θ of the bending target electric wire so as to be within the bending angle allowable tolerance range Rs.

  Since the bending angle θ is set for each bending point P1, the bending point P1 of the wire harness W can be set so as to be within the wiring board 30, and the bending of the bending target electric wire can be performed. The angle θ can be reliably kept within the bending angle allowable tolerance range Rs.

That is, the wiring layout design support device 10 can display the bending target electric wire with respect to the reference electric wire as a characteristic layout shown in FIG. Then, the designer or the like designs the wiring layout with reference to the characteristic layout, so that the following requirements are considered.
(1) The mounting branch angle θr in the three-dimensional wire harness W is set to an ideal bending angle (the branch angle on mounting θd) of the bending angle θ on the wiring board 30.
(2) Based on the rigidity of the electric wire to be bent such as the branch line Wb, a bending angle allowable tolerance range Rs that can compensate for a dimensional allowable tolerance from a vehicle manufacturer or the like is obtained.
(3) The bending angle θ on the wiring board 30 is designed so as to be within the bending angle allowable tolerance range Rs.
(4) The bending angle θ is appropriately designed within the bending angle allowable tolerance range Rs so as to satisfy the manufacturing requirements and the mounting requirements.

  An example of bending angle design support based on the support screen information G in the wiring layout design support apparatus 10 will be described below with reference to the drawing of FIG. FIG. 12 shows that (a) is acceptable and (b) is partially unacceptable. Then, in FIG. 12, when each bending electric wire (branch line Wb) has a bending angle allowable tolerance range Rs and the bending angle θ of the bending target electric wire is set within the range, the determination is made. As a result, any of pass: ○, fail: x, criticality: Δ is displayed in the vicinity of the bending point P1. When the determination result is acceptable, it is considered that the bending angle θ is set. Further, an ideal bending angle θd indicated by a broken line in the drawing is displayed within the bending angle allowable tolerance range Rs with respect to the bending point P1. In FIG. 12, a case where the allowable bending angle tolerance range Rs is set with respect to the center of the trunk line Wm and the branch line Wb will be described, but the display form can be arbitrarily set.

  The wiring layout design support device 10 described above designs the wiring layout so that the bending angle of the bending target wire is within the bending angle allowable tolerance range Rs calculated based on the component information D4 and the mounting requirement information D2. Because of the support, even when the wire harness W manufactured on the wiring board 30 is attached to a vehicle or the like, the electric wires W such as the branch wires Wb do not reach, and problems such as abnormal mounting shapes are prevented. can do. Accordingly, the design of the wiring board layout that satisfies the mounting requirements of the wire harness W can be supported, so that the wiring harness W manufactured on the wiring board 30 can be reliably reproduced in a three-dimensional shape and the mounting quality is guaranteed. be able to.

  Further, the designers and the like are able to support the design of the bending angle θ of the electric wire to be bent based on the calculated bending angle allowable tolerance range Rs and the installation upper branch angle θd that is the ideal bending angle. Therefore, the design can be performed with reference to the bending angle θd, which can contribute to the improvement of the efficiency of the wiring layout design.

  Furthermore, since the bending point P1 of the wire harness W is set so as to fit in the wiring board 30, and the reference electric wire and the bending target electric wire corresponding to the bending point P1 are set, the wiring harness W is connected to the wiring board. The wire harness W manufactured on the wiring board 30 can be three-dimensional because the wire can be wired without protruding from the wire 30 and the bending angle θ of the electric wire to be bent can be reliably within the bending angle allowable tolerance range Rs. The shape can be reliably reproduced and the mounting quality can be guaranteed.

  In addition, although the wiring layout design support device 10 described above has described the configuration in which the bending angle θ for every bending point P1 in the wire harness W is set by the designer or the like, the present invention is not limited to this. As for the setting of the bending angle θ, the wiring layout design support program P has a function of automatically setting within the bending angle allowable tolerance range Rs so as to be within the possible wiring range of the wiring board 30; It is also possible to automatically design the wiring layout.

  In the embodiment described above, the case where the wiring layout design support device 10 is realized by a personal computer has been described. However, the present invention is not limited to this, and a dedicated device or a CAD function is added. It can be set as various different embodiments.

  The wiring layout design support device 10 according to the first embodiment described above has been described with respect to the case of acquiring and supporting the three-dimensional information D1 indicating the state of being routed in a vehicle or the like. When the two-dimensional information D5 indicating the wiring layout that is a wiring plane shape when the wire harness W is developed on the wiring board 30 is created in advance, the two-dimensional information D5 is taken in to design the wiring layout. An embodiment supporting the above will be described below. Note that the basic configuration of the wiring layout design support apparatus 10 is the same as that of the first embodiment, and only different parts will be described here.

  The storage device 14 stores the wiring layout design support program P according to the second embodiment, the above-described three-dimensional information D1, mounting requirement information D2, wiring board information D3, component information D4, two-dimensional information D5, and the like. Yes. In addition, about the three-dimensional information D1, if unnecessary, it can also be set as the embodiment which deletes from the structure and acquires and memorize | stores only the two-dimensional information D5.

  Next, an example of layout design support processing when the above-described CPU 11 executes the wiring layout design support program P according to the first embodiment will be described with reference to the flowchart of FIG.

  In step S31, two-dimensional information D5 corresponding to the product number of the wire harness W instructed by the designer or the like is acquired from a predetermined database or the like and stored in the storage device 14, and step S32 (bending point setting means). The bending points P1 in the wiring layout R indicated by the two-dimensional information D5 are set, and these are stored in the storage device 14 as bending point information, and then the process proceeds to step S33. If the two-dimensional information D5 has data corresponding to the bending point P1, the bending point P1 is acquired from the two-dimensional information D5.

  In step S33 (electric wire setting means), a reference electric wire and a bending target electric wire corresponding to each bending point P1 indicated by the bending point information are set from the plurality of electric wires W1 constituting the wire harness W, and step S34 (component information). In the acquisition unit), the component information D4 corresponding to the set electric wire W1 is acquired from a predetermined database or the like and stored in the storage device 14, and in step S35 (mounting requirement information acquisition unit), the component information D4 corresponds to the wire harness W. The mounting requirement information D2 to be acquired is acquired from a predetermined database or the like and stored in the storage device 14, and then the process proceeds to step S36.

  In step S36 (allowable tolerance range calculating means), the electric wires to be bent with respect to the reference electric wire at each bending point P1 based on the mounting requirement information D2 and the component information D4 in the storage device 14 in the same manner as in step S17 described above. The bending angle allowable tolerance range is calculated, the bending angle allowable tolerance range is stored in the storage device 14 in association with the bending target electric wire at the bending point P1, and the bending angle indicating the bending angle θ corresponding to each bending target electric wire. Information is acquired and associated with the bending point P1, and then the process proceeds to step S37.

  In step S37, whether or not the bending angle θ is within the corresponding allowable bending angle tolerance range for all the bending points P1 indicated by the bending point information by executing the bending angle determination process. If it is determined and fit, pass information is generated and associated with the bending point P1, and if it is not fit, fail information is generated and associated with the bend point P1, Thereafter, the process proceeds to step S38.

In addition, as an example of the acceptance / rejection determination standard of the bending angle θ, it can be set as follows.
Pass: The bending angle θ is within the bending angle allowable tolerance range Rs and satisfies the manufacturing requirements.
Fail: The bending angle θ is outside the allowable bending angle tolerance range Rs. Alternatively, the bending angle θ is within the bending angle allowable tolerance range Rs, but does not satisfy the manufacturing requirements.
Criticality: The bending angle θ is equal to the bending angle allowable tolerance upper limit Ru (in this case, an alarm is set or an arbitrary setting is made such that the passing is considered).

  In step S38, support screen information is generated that superimposes pass information or fail information on each bending point P1 on the wiring layout R, and superimposes a bending angle allowable tolerance range corresponding to the bending point P1. As the support screen information is output to the display device 17, a support screen for supporting the design of the wiring layout R is displayed on the display device 17, and then the process proceeds to step S39. As a result, the designer or the like refers to the support screen and changes the design of the bending angle θ of the bending point P1 that has been determined to be unacceptable.

  The support screen information can be variously different embodiments, such as a bending angle tolerance range being superimposed only on the bending point P1 where the failure information is superimposed.

  In step S39, for example, based on the display of the change screen, the bending angle changed by the designer of the bending point P1 determined to be unacceptable is acquired in association with the bending point P1, and change information is generated. Thereafter, the process proceeds to step S40.

  In step S40, the bending angle θ at the bending point P1 of the wiring layout R of the two-dimensional information D5 stored in the storage device 14 is changed based on the generated change information, and the wiring is performed according to the change. The adjustment process of the layout R is performed, and in step S41, the changed two-dimensional information D5 is stored in the storage device 14, and then the process ends.

  Next, an example of the operation (action) of the wiring layout design support apparatus 10 according to the second embodiment will be described below.

  When obtaining the two-dimensional information D5 indicating the wiring layout R of FIG. 6 designed by a designer or the like, the wiring layout design support device 10 sets a bending point P1 for the wiring layout R, and the bending A bending angle tolerance range Rs shown in FIG. 11 is calculated for each of the bending target wires at the point P1. Then, it is determined whether or not the bending angle θ of the bending target electric wire at each bending point P1 is within the bending angle allowable tolerance range Rs, and the determination result and the bending angle allowable tolerance range Rs are displayed on the wiring layout R. A support screen to be superimposed and displayed is generated and displayed on the display device 17.

  As a result, the designer or the like refers to the support screen and changes the bending angle θ of the bending target electric wire so as to be within the bending angle allowable tolerance range Rs. Then, the wiring layout design support device 10 acquires the changed bending angle as change information, and changes the two-dimensional information D5 based on the change information.

  With such a wiring layout design support device 10, it is possible to provide support for designing in consideration of the requirements (1) to (3) described above for the two-dimensional information D5 designed in advance. Thus, even if the wire harness W manufactured on the wiring board 30 is mounted on a vehicle or the like, it is possible to prevent the occurrence of problems such as an abnormal mounting shape or the like where the electric wires W such as the branch lines Wb do not reach. . Accordingly, the design of the wiring board layout that satisfies the mounting requirements of the wire harness W can be supported, so that the wiring harness W manufactured on the wiring board 30 can be reliably reproduced in a three-dimensional shape and the mounting quality is guaranteed. be able to.

  Further, the designers and the like are able to support the design of the bending angle θ of the electric wire to be bent based on the calculated bending angle allowable tolerance range Rs and the installation upper branch angle θd that is the ideal bending angle. Therefore, the design can be performed while referring to the bending angle, so that the wiring layout design efficiency can be improved.

  In addition, the Example mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

It is a block diagram which shows the basic composition of the wiring layout design assistance apparatus which concerns on this invention. It is a figure which shows an example of the three-dimensional shape of a wire harness, (a) is a general view, (b) has each shown the enlarged view of the part 1 in (a). It is a figure for demonstrating the reference | standard electric wire, bending object electric wire, and bending point which concern on this invention. It is a block diagram which shows an example of schematic structure of a wiring layout design assistance apparatus. It is a figure for demonstrating an example of a wiring layout design support program and various information. It is a figure which shows an example of the wiring layout which shows the wiring planar shape when a wire harness is expand | deployed on a wiring board. It is a flowchart which shows a part of wiring layout design assistance process which CPU in FIG. 4 performs. It is a flowchart which shows a part of wiring layout design assistance process which CPU in FIG. 4 performs. It is a graph for demonstrating an example of the attachment characteristic of a wire harness. It is a graph for demonstrating an example of the allowable angle of a bending object electric wire. It is a graph which shows bending angle tolerance tolerance range Rs corresponding to a characteristic layout. It is a figure which shows an example of the determination result of the bending angle with respect to bending angle tolerance tolerance range Rs. It is a flowchart which shows a part of wiring layout design support process which concerns on Example 2 which CPU in FIG. 4 performs. It is a figure which shows one form of the wiring apparatus using the conventional wiring jig. It is a figure which shows the mismatch of the harness length and linear distance from a branch point to a mounting point.

Explanation of symbols

10 Wiring layout design support device 11a Electric wire setting means (CPU)
11b Component information acquisition means (CPU)
11c Wearing requirement information acquisition means (CPU)
11d Allowable tolerance range calculation means (CPU)
11e Design support means (CPU)
11e1 bending angle setting means (CPU)
11e2 determination means (CPU)
11e3 judgment result output means (CPU)
30 Wiring board P1 Bending point W Wire harness θ Bending angle θd Ideal bending angle (branching angle on installation)

Claims (6)

A wiring layout design support apparatus for supporting a wiring layout design showing a wiring plan shape when a three-dimensional wire harness is developed on a wiring board,
Among a plurality of electric wires constituting the wire harness, a wire setting means for setting a reference wire and a bending target wire corresponding to a bending point of the wire harness,
Component information acquisition means for acquiring component information corresponding to the reference electric wire and the bending target electric wire set by the electric wire setting means;
Mounting requirement information acquisition means for acquiring mounting requirement information corresponding to the wire harness;
Based on the component information acquired by the component information acquisition unit and the mounting requirement information acquired by the mounting requirement information acquisition unit, an allowable tolerance for calculating a bending angle allowable tolerance range of the bending target electric wire with respect to the reference electric wire at the bending point. Range calculation means;
Design support means for supporting the design of the wiring layout so that the bending angle of the electric wire to be bent at the bending point is within the bending angle allowable tolerance range calculated by the allowable tolerance range calculating means;
A wiring layout design support apparatus characterized by comprising: The cloth according to claim 1, wherein the design support means is means for supporting the design of the bending angle based on the bending angle allowable tolerance range and a bending angle at the time of mounting indicated by the mounting requirement information. Line layout design support device. The design support means includes
A bending angle setting means for setting a bending angle of the bending target wire;
Determining means for determining whether or not a bending angle set by the bending angle setting means is within a bending angle allowable tolerance range calculated by the allowable tolerance range calculating means;
A determination result output means for outputting a determination result of the determination means;
The wiring layout design support device according to claim 1, wherein the wiring layout design support device is provided. A bending point setting means for setting a bending point of the wire harness so as to fit in the wiring board; and
The said electric wire setting means is a means to set the said reference | standard electric wire and the said bending object electric wire corresponding to the bending point which the said bending point setting means set. The any one of Claims 1-3 characterized by the above-mentioned. Wiring layout design support device. A wiring layout design support method for supporting a wiring layout design showing a wiring plane shape when a wire harness having a three-dimensional shape is developed on a wiring board,
Among a plurality of electric wires constituting the wire harness, an electric wire setting process for setting a reference electric wire and a bending target electric wire corresponding to a bending point of the wire harness,
Part information acquisition process for acquiring part information corresponding to the set reference electric wire and bending target electric wire,
A mounting requirement information acquisition process for acquiring mounting requirement information corresponding to the wire harness;
An allowable tolerance range calculating step of calculating a bending angle allowable tolerance range of the bending target electric wire with respect to the reference electric wire at the bending point based on the acquired component information and the mounting requirement information;
A design support process for supporting the design of the wiring layout so that the bending angle of the bending target electric wire at the bending point is within the calculated bending angle allowable tolerance range;
A wiring layout design support method characterized by comprising: A wiring layout design support program for causing a computer to function as a means for supporting a wiring layout design indicating a wiring plan shape when a three-dimensional shape wire harness is developed on a wiring board,
Among a plurality of electric wires constituting the wire harness, a wire setting means for setting a reference wire and a bending target wire corresponding to a bending point of the wire harness,
Component information acquisition means for acquiring component information corresponding to the reference electric wire and the bending target electric wire set by the electric wire setting means;
Mounting requirement information acquisition means for acquiring mounting requirement information corresponding to the wire harness;
Based on the component information acquired by the component information acquisition unit and the mounting requirement information acquired by the mounting requirement information acquisition unit, an allowable tolerance for calculating a bending angle allowable tolerance range of the bending target electric wire with respect to the reference electric wire at the bending point. Range calculation means;
Design support means for supporting the design of the wiring layout so that the bending angle of the electric wire to be bent at the bending point is within the bending angle allowable tolerance range calculated by the allowable tolerance range calculating means;
A wiring layout design support program characterized by causing a computer to function.

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