JP6569130B2 - Wiring alteration detection device - Google Patents

Description

  The present invention relates to a technique for detecting an act of altering a wiring in a vehicle or an act connected to the act.

  In recent years, electronic control of traveling systems has been progressing, such as the spread of advanced driving support systems such as automatic brakes. Under such circumstances, the reliability of the wiring composed of the wire harness is more important than ever. Although design measures have been taken to ensure the reliability of the wiring, the wiring may be changed due to an unexpected modification in the market or the like.

  Here, Patent Document 1 includes vehicle state monitoring means for monitoring the state of the vehicle, and warning means for taking a warning state for warning an illegal traveling preparation operation to the vehicle when the vehicle is in a parked state. A vehicle state notification device mounted on the vehicle, vehicle information acquisition means for acquiring vehicle information indicating the state of the vehicle from the vehicle state monitoring means, and warning information indicating the warning state from the warning means. A vehicle state notification device comprising: warning information acquisition means to be acquired; and the vehicle information acquired by the vehicle information acquisition means; and one display means for notifying the warning information acquired by the warning information acquisition means by display. Disclosure.

JP 2010-89553 A

  However, the technique disclosed in Patent Document 1 cannot detect an act of altering the wiring or an act leading to the alteration.

  Therefore, an object of the present invention is to detect an act of altering a wiring or an act that leads to the alteration.

In order to solve the above-described problem, a wiring modification act detection device according to a first aspect is provided with a fixing portion that fixes a wire harness or an interior member that covers the wiring harness to a metal panel of a vehicle, and the fixing portion. Detection part branched from the wire harness connected to the wiring, and a fixing member comprising a contact part that can contact the metal panel in a state where the part is attached to the metal panel, and a wiring drawn from the contact part And an electronic control unit having a circuit for detecting a contact state of the contact portion with the metal panel.

A 2nd aspect is a wiring modification act detection apparatus which concerns on a 1st aspect, Comprising: The said fixing | fixed part is made from resin.

A 3rd aspect is a wiring modification act detection apparatus which concerns on a 1st or 2nd aspect, Comprising: The said fixing | fixed part is formed separately from the said interior member, and fixes the said interior member to the said metal panel. Is.

A 4th aspect is a wiring modification act detection apparatus which concerns on a 1st or 2nd aspect, Comprising: The said fixing | fixed part is integrally formed with the said interior member.

A 5th aspect is a wiring modification act detection apparatus which concerns on any one 1st to 4th aspect, Comprising: The said contact part is integrated in the said fixing | fixed part integrally.

According to the 1st-5th aspect, if the fixing part is removed from a metal panel in order to modify the wiring comprised by a wire harness or to perform the action which leads to a modification, a contact part and a metal panel will separate. For this reason, a contact part will be in the state which floated electrically from the metal panel. By detecting the contact state of the contact portion with the metal panel through wiring, it is possible to detect whether or not the wire harness or the interior member that covers the wire harness has been removed from the metal panel of the vehicle. Thereby, the act of altering the wiring or the act leading to the alteration can be detected.

  According to the second aspect, the fixing member can be manufactured at low cost.

  According to the 3rd aspect, a detection function can be easily integrated in an interior member.

  According to the 4th aspect, since the fixing member is integrally formed with the interior member, it is easy to handle when the vehicle is assembled.

  According to the 5th aspect, since the said contact part is integrally integrated in the said fixing | fixed part, a contact part can be easily integrated in a metal panel with a fixing | fixed part. Moreover, if a fixing | fixed part is removed from a metal panel, a contact part will leave | separate more reliably from a metal panel.

It is a schematic sectional drawing which shows the state which attached the fixing member which concerns on embodiment to the metal panel of a vehicle. It is a schematic sectional drawing which shows the state in the middle of attaching a fixing member to a metal panel. It is the schematic which shows the wiring modification act detection apparatus containing a fixing member and ECU as a detection part. It is the schematic which shows the wiring modification act detection apparatus containing a fixing member and ECU as a detection part. It is explanatory drawing which shows the fixing member which concerns on a 1st modification. It is explanatory drawing which shows the fixing member which concerns on a 2nd modification. It is explanatory drawing which shows the fixing member which concerns on a 3rd modification. It is explanatory drawing which shows the fixing | fixed part which concerns on a 4th modification.

  Hereinafter, the fixing member and the wiring modification act detection device in the vehicle according to the embodiment will be described.

  FIG. 1 is a schematic cross-sectional view showing a state where the fixing member 40 is attached to the metal panel 10 of the vehicle, and FIG. 2 is a schematic cross-sectional view showing a state where the fixing member 40 is detached from the metal panel 10.

  The fixing member 40 is for fixing the interior member that covers the wire harness 20 to the metal panel 10 of the vehicle.

  That is, the vehicle is provided with a metal panel 10 that forms a part of the body. A wire harness 20 is disposed along one main surface of the metal panel 10 (for example, a surface on the passenger compartment side). The metal panel 10 is formed with an attachment hole 12h for fixing a clamp 28 with band described later and an attachment hole 14h for fixing a fixing portion 42 described later.

  The wire harness 20 is a member in which a plurality of electric wires are bundled while being branched. A connector or the like attached to the end of the wire harness 20 is connected to an electrical component in the vehicle. Thereby, various electric components mounted in the vehicle are electrically connected through the wire harness 20. An interior member 30 is attached to the metal panel 10 so as to cover the passenger compartment side. The wire harness 20 is fixed to the metal panel 10 by a clamp 28 with a band. The clamp 28 with a band is configured integrally with a clamp portion 29 a that can be retained and locked in an attachment hole 12 h formed in the metal panel 10 and a band portion 29 b that can be wound around the wire harness 20. . Then, the wire harness 20 is fixed at a fixed position with respect to the metal panel 10 by inserting and fixing the clamp portion 29a into the attachment hole 12h in a state where the band portion 29b is wound around and fixed to the wire harness 20. An electric wire for detection 22 is branched from an intermediate portion in the extending direction of the wire harness 20. A connector 24 is connected to the end of the detection wire 22. In addition, the wire harness 20 may be fixed to the metal panel 10 by a clamp with a sleeve attached to the wire harness 20 with an adhesive tape or the like.

  The interior member 30 is a resin mold product, a nonwoven fabric, a resin sheet, or the like, and is assumed to be, for example, a lining exposed to the room, an instrument panel, a floor carpet, roofing, or the like. The interior member 30 covers the wire harness 20 at the place where the wire harness 20 is disposed. Here, the interior member 30 will be described as an example of a resin molded product that covers the wire harness 20 and covers the one main surface side of the metal panel 10. In a state where the interior member 30 covers the metal panel 10, a space in which the wire harness 20 and the like can be disposed is formed between the metal panel 10 and the interior member 30.

  The fixing member 40 includes a fixing part 42, a contact part 50, and a wiring 58.

  The fixing part 42 is a part for fixing the interior member 30 to the metal panel 10. Here, the fixing portion 42 includes a column portion 43 and a locking portion 44. The column portion 43 is formed in a column shape extending linearly, and can be inserted into the mounting hole 14h in a penetrating manner. The locking portion 44 protrudes toward the outer peripheral side of the column portion 43, and is configured to be locked to the peripheral portion of the mounting hole 14h in a state where the column portion 43 is inserted into the mounting hole 14h. More specifically, the pair of locking portions 44 extend while sequentially expanding from the distal end portion of the column portion 43 toward the proximal end side. The pair of locking portions 44 are formed to be elastically deformable in the inner and outer directions. When the fixing portion 42 is pushed into the mounting hole 14h, the outer surfaces of the pair of locking portions 44 come into contact with the inner peripheral edge portion of the mounting hole 14h and elastically deform inward. When the fixing portion 42 is inserted into the mounting hole 14h until the pair of locking portions 44 exceeds the inner peripheral edge of the mounting hole 14h, the pair of locking portions 44 return to the original shape, and the pair of engagement portions 44 The leading end of the stopper 44 is prevented from coming off from the other main surface side of the metal panel 10 to the peripheral edge of the mounting hole 14h. As a result, the fixing portion 42 is fixed to the mounting hole 14 h of the metal panel 10.

  The fixing portion 42 is a portion molded with resin. The fixing portion 42 is a component that is integrally formed with the interior member 30. That is, when the interior member 30 is molded with resin, the fixing portion 42 is also integrally formed with the interior member 30. Here, the interior member 30 and the fixed portion 42 are integrally molded with the mold in such a manner that the upper end portion of the column portion 43 is integrally connected to the inside of the interior member 30.

  The contact portion 50 is provided in the fixing portion 42 and is configured to be able to contact the metal panel 10 in a state where the fixing portion 42 is attached to the metal panel 10.

  Here, the contact portion 50 is an annular member formed of a metal such as copper, iron, or aluminum, and is provided at a position surrounding the upper end portion of the column portion 43. And when the fixing | fixed part 42 is fixed to the metal panel 10, the part of the contact part 50 which faces the metal panel 10 but the side comes to contact one main surface of the metal panel 10. FIG. Here, the contact portion 50 is integrated into the fixed portion 42. More specifically, when the fixing portion 42 is molded, the fixing portion 42 is insert-molded using the contact portion 50 as an insert part. Thereby, the contact part 50 is integrated with respect to the fixing | fixed part 42, and is handled integrally as a mode which is hard to separate. The contact part 50 may be integrated with the fixing part 42 by press fitting, adhesive, or the like. In the state where the pair of locking portions 44 are locked to the metal panel 10, the contact portion 50 is more reliably in contact with the metal panel 10. The distance between the portion 44 where the portion 44 engages with the other main surface of the metal panel 10 and the portion of the contact portion 50 that contacts the metal panel 10 is the same as or smaller (slightly smaller) than the thickness of the metal panel 10. It is preferable.

  The wiring 58 is a wiring including a conductive line drawn from the contact portion 50. The wiring 58 is preferably a covered electric wire in which a core wire formed of metal or the like is covered with an insulating resin or the like. One end of the wiring 58 is connected to the contact portion 50 by soldering or the like. A connector 59 is connected to the other end of the wiring 58. The connector 59 is configured to be connectable to the connector 24. When the connectors 24 and 59 are connected to each other, the wiring 58 is connected to the detection wire 22 of the wire harness 20.

  In attaching the interior member 30 to the metal panel 10, as shown in FIG. 2, first, the wire harness 20 is attached to the metal panel 10 using a clamp 28 with a band. Then, the interior member 30 is brought close to a position covering the one main surface of the metal panel 10 and the wire harness 20, and the connector 24 and the connector 59 are connected by the connector.

  Thereafter, the fixing portion 42 is inserted into the attachment hole 14h and fixed to the attachment hole 14h. Thereby, the contact part 50 will be in the state which contact | connected the one main surface of the metal panel 10, and the contact part 50 and the metal panel 10 will be in the state which contacted electrically. The metal panel 10 in the vehicle is normally a ground connection part, and therefore the wiring 58 and the detection electric wire 22 connected thereto are grounded.

  3 and 4 are schematic views showing a wiring modification act detection device including the fixing member 40 and an ECU 60 as a detection unit.

  The ECU 60 is an electronic control unit configured by a general computer including a CPU, a RAM, a ROM, an input circuit unit, and the like. The ECU 60 is connected to the wiring 58 and is detected through the wiring 58. It is a circuit that detects the contact state of the contact portion 50 with the metal panel 10 in response to a signal. The ROM is configured by a rewritable nonvolatile semiconductor memory or the like such as a flash memory, and stores a program or the like describing processing procedures for performing various information processing.

  One end of a circuit constituted by the wiring 58 and the detection electric wire 22 is connected to the contact portion 50, and the other end is connected to a signal input terminal of the ECU 60. The contact portion 50 is connected to a positive (+ V) power supply circuit via a resistor R.

  As shown in FIG. 3, when the contact portion 50 is in contact with the metal panel 10, the ground potential (0 V) is input to the signal input terminal of the ECU 60. On the other hand, as shown in FIG. 4, when the contact portion 50 is lifted from the metal panel 10, a potential of + V is input to the signal input terminal of the ECU 60. Thereby, the ECU 60 is in a state where the contact portion 50 is in contact with the metal panel 10 when the potential input to the signal input terminal is the ground potential (0 V), that is, the interior member 30 is separated from the metal panel 10. It can be recognized that it is not removed. Further, when the potential input to the signal input terminal is + V, the ECU 60 indicates that the contact portion 50 is separated from the metal panel 10, that is, the interior member 30 is removed from the metal panel 10. I can recognize that. Then, when the interior member 30 is removed from the metal panel 10, it is possible to detect an alteration action to the wiring constituted by the wire harness 20 or an action leading to the alteration.

  When the ECU 60 detects an alteration act on the wiring or an act leading to the alteration, a warning is displayed on a display device provided so as to be visible from the driver's seat, or a history of the act (presence / absence of detection, time, etc.) is stored. The vehicle may not be activated or may not be allowed to travel.

  According to the fixing member 40 and the wiring modification action detection device in the vehicle configured as described above, the fixing part 42 is removed from the metal panel 10 in an attempt to modify the wiring composed of the wire harness 20 or lead to the modification. When removed, the contact portion 50 and the metal panel 10 are separated. For this reason, the contact part 50 will be in the state which floated electrically from the metal panel 10. FIG. By detecting the contact state of the contact portion 50 with the metal panel 10 by the ECU 60 or the like through the wiring 58, it is possible to detect whether or not the interior member 30 that covers the wire harness 20 has been removed from the metal panel 10. Thereby, the act of altering the wiring or the act leading to the alteration can be detected.

  Moreover, since the fixing | fixed part 42 is formed with resin, the fixing member 40 can be manufactured cheaply. Moreover, the thing of the structure which can be fixed to the metal panel 10 easily, such as the said clamp structure, can be used.

  Moreover, since the fixing | fixed part 42 is integrally formed with the interior member 30, it can handle the interior member 30 and the fixing | fixed part 42 integrally, and the handling at the time of vehicle assembly is easy.

  Moreover, since the contact part 50 is integrated in the fixing | fixed part 42, the contact part 50 can be easily integrated in the metal panel 10 with the fixing | fixed part 42. FIG. Moreover, if the fixing | fixed part 42 is removed from the metal panel 10, the contact part 50 will leave | separate more reliably from the metal panel 10, and the removal of the interior member 30 can be detected more reliably.

{Modifications}
Based on the above embodiment, various modifications will be described.

  FIG. 5 is an explanatory view showing a fixing member 140 according to a first modification. In the above embodiment, the fixing portion 42 is integrally formed with the interior member 30, but here, the fixing portion 142 corresponding to the fixing portion 42 is formed separately from the interior member 130 corresponding to the interior member 30. ing.

  More specifically, a fixing hole 132 h is formed in the interior member 130. Locked recesses 133 are formed in a part of the fixing hole 132h in the circumferential direction (here, two opposing portions of the inner periphery of the fixing hole 132h). The to-be-latched recessed part 133 is formed in a concave shape in which the dimension gradually dented toward the metal panel 10 is reduced. The surface of the locked recess 133 opposite to the metal panel 10 is formed as a surface orthogonal to the axial direction of the fixing hole 132h.

  The fixing portion 142 includes a base portion 146 that can be fitted into the fixing hole 132h, a column portion 143, and a locking portion 144, and is integrally molded with a resin or the like.

  The base 146 is formed in a plate shape that fits into the fixing hole 132h without rattling. A locking projection 147 is formed at a position corresponding to the locked recess 133 on the outer periphery of the base 146. The locking convex portion 147 has an inclined surface 147a whose height dimension gradually decreases toward the distal end side of the column portion 143. In addition, the surface of the locking projection 147 on the base end side of the column portion 143 is formed on a surface 147 b orthogonal to the axial direction of the column portion 143. When the fixing portion 142 is inserted into the fixing hole 132h, the inclined surface 147a comes into contact with the peripheral portion of the fixing hole 132h, and at least one of the base portion 146 and the peripheral portion of the fixing hole 132h is elastically deformed. When the fixing portion 142 is inserted to a position where the locking convex portion 147 reaches the locked recess 133, the peripheral portions of the base 146 and the fixing hole 132 h return to their original shapes, and the locking convex portion 147 is brought into the locked recess 133. The fitted state is maintained, whereby the fixing portion 142 is fixed to the interior member 130.

  The column part 143 is formed so as to protrude from the center of one main surface of the base part 146. A plurality of locking portions 144 project from the periphery of the column portion 143. Each locking portion 144 is formed in a dish shape that gradually spreads from the outer peripheral portion of the column portion 143 toward the proximal end portion of the column portion 143. The outer dimension of each locking part 144 is larger than the outer diameter of the mounting hole of the metal panel. When the fixing portion 142 is inserted into the mounting hole of the metal panel, the peripheral portion of each locking portion 144 comes into contact with the peripheral portion of the mounting hole, and the locking portion 144 is deformed in a reduced diameter. When the locking portion 144 exceeds the peripheral edge portion of the mounting hole, the locking portion 144 is locked to the mounting hole. Any one of the plurality of dish-shaped locking portions 144 is locked from the other main surface side of the metal panel 10 to the peripheral edge portion of the mounting hole. Thereby, the fixing part 142 is fixed to the metal panel in a retaining shape. The configuration including the column portion 143 and the plurality of locking portions 144 is a configuration adopted for what is called a tree-like clamp.

  Moreover, the contact part 50 is the same structure as what was demonstrated in the said embodiment, and is integrated in the base part 146 by insert molding etc. around the base end part of the pillar part 143. As shown in FIG.

  In the first modification, the connector 59 and the wiring 58 can be passed through the fixing hole 132h first, the fixing portion 142 can be inserted into the fixing hole 132h, and the fixing portion 142 can be attached to the interior member 130. And the fixing | fixed part 142 is inserted in an attachment hole, and the interior member 130 can be fixed to a metal panel by the fixing | fixed part 142 similarly to the said embodiment.

  For this reason, the effect similar to the said embodiment can be obtained except the effect by integrally forming the fixing | fixed part 42 in the interior member 30. FIG. Further, the detection function can be easily incorporated into the interior member 30.

  FIG. 6 is an explanatory view showing a fixing member 240 according to a second modification. The second modification differs from the first modification in the following points.

  First, a fixing hole 232 h is formed in the interior member 230 corresponding to the interior member 130. Locked recesses 233 are formed in a part of the fixing hole 232h in the circumferential direction (here, two locations facing the inner periphery of the fixing hole 232h). The locked concave portion 233 is formed in a concave shape in which the size of the concave concave portion gradually decreases toward the side away from the metal panel 10. The surface on the metal panel 10 side of the locked recess 233 is formed on a surface orthogonal to the axial direction of the column portion 243.

  The fixing portion 242 includes a base portion 246 that can be fitted into the fixing hole 232h, a column portion 243, and a locking portion 244, and is integrally molded with a resin or the like.

  The base 246 is formed in a plate shape that fits into the fixing hole 232h without rattling, similar to the base 146. A locking projection 247 is formed at a position corresponding to the locked recess 233 on the outer periphery of the base 246. The locking convex portion 247 has an inclined surface 247 a whose height dimension gradually decreases toward the tip end side of the column portion 243. In addition, the surface on the proximal end side of the column portion 243 of the locking projection 247 is formed on a surface 247 b orthogonal to the column portion 243. When the fixing portion 242 is inserted into the fixing hole 232h from the metal panel 10 side, the inclined surface 247a comes into contact with the peripheral portion of the fixing hole 232h, and at least one of the base portion 246 and the peripheral portion of the fixing hole 232h is elastically deformed. When the fixing portion 242 is inserted until the locking convex portion 247 reaches the locked recess 233, the peripheral portions of the base 246 and the fixing hole 232h return to the original shape, and the locking convex portion 247 enters the locked recess 233. The fitted state is maintained, whereby the fixing portion 242 is fixed to the interior member 230.

  That is, the inclination directions of the inclined surfaces of the locked concave portion 233 and the locking convex portion 247 are opposite to those of the first modified example. Therefore, the fixing portion 242 has a fixing hole opposite to the first modified example. 232h is inserted from the metal panel side.

  Further, the contact portion 250 corresponding to the contact portion 50 is formed separately from the fixing portion 242. The contact portion 250 is assembled to the fixed portion 242 by inserting the pillar portion 243 and the locking portion 244 into the contact portion 250 and fitting the contact portion 250 to the base end side of the pillar portion 243 until it contacts the base portion 246. Attached.

  Also according to the second modified example, the same operational effects as those of the first modified example can be obtained except for the operational effects of integrating the contact portion 150 into the fixed portion 142 integrally.

  FIG. 7 is an explanatory view showing a fixing member 340 according to a third modification. The third modification differs from the second modification in the following points.

  In other words, no locking recess is formed in the fixing hole 332 h formed in the interior member 330.

  The base portion 346 corresponding to the base portion 246 is formed in a plate shape larger than the fixing hole 332h. The fixing portion 242 described in the second modified example protrudes from one main surface of the base portion 346.

  As described in the first modified example, the contact portion 350 may be integrated into the base portion 346 or formed separately from the base portion 346 and is externally fitted to the base end portion of the column portion 243. May be.

  And the interior member 330 can be fixed to the metal panel 10 by inserting the fixing | fixed part 242 in the fixing hole 332h and the attachment hole of a metal panel in the state which covered the wire harness with the interior member 330. FIG.

  Note that the wiring 58 may be passed through the fixing hole 332h in advance to connect the connector 59 to the connector of the detection wire.

  Also according to the third modified example, it is possible to obtain the same effects as the first modified example or the second modified example.

  FIG. 8 is an explanatory view showing a fixing member 440 according to a fourth modification. In the fourth modification, the fixing member 440 is configured to fix the wire harness 20 to the metal panel 10.

  That is, a fixing portion 42 having the same configuration as that described in the above embodiment is projected from the band lock portion 448 b of the band portion 448 that can be bound and fixed to the wire harness 20. The band portion 448 is provided with a band lock portion 448b that is inserted into the band main body portion 448a and selectively locked to a part of the plurality of grooves at one end portion of the band main body portion 448a in which a large number of grooves are formed. The configuration is the same as that of a general binding band. The band main body portion 448 a is inserted and fixed to the band lock portion 448 b while being wound around the wire harness 20. As a result, the fixing member 440 is fixed to the wire harness 20 via the band portion 448.

  The contact portion 450 may be integrated with the band lock portion 448b as described in the first modification, or may be formed separately from the band lock portion 448b. It may be fitted on the base end.

  According to this 4th modification, the wire harness 20 is fixed to the said metal panel by inserting and fixing the fixing | fixed part 42 of the fixing member 440 in the attachment hole of a metal panel. Then, when the wire harness 20 is to be removed from the metal panel and the fixing portion 42 is removed from the metal panel, the contact portion 450 and the metal panel are brought into a non-contact state. Can be detected.

  Note that a metal member such as a screw or a bolt may be used as the fixing portion.

  In addition, each structure demonstrated in the said embodiment and each modification can be suitably combined unless it mutually contradicts.

  For example, in the fourth modification shown in FIG. 8, the band lock portion extends laterally, a hole is formed in this portion, and a fixing portion with a head is inserted through the hole. Good.

  As described above, the present invention has been described in detail. However, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Metal panel 12h Mounting hole 14h Mounting hole 20 Wire harness 30, 130, 230, 330 Interior member 40, 140, 240, 340, 440 Fixed member 42, 142, 242 Fixed part 50, 150, 250, 350, 450 Contact part 58 Wiring 59 Connector 60 ECU
132h, 232h Fixing hole 133 Locked recess 246, 346 Base portion 448 Band portion 448a Band body portion 448b Band lock portion

Claims (5)

A fixing portion for fixing the wire harness or the interior member covering the wire harness to the metal panel of the vehicle;
A contact portion provided on the fixing portion, the contact portion being capable of contacting the metal panel in a state where the fixing portion is attached to the metal panel;
A fixing member comprising a wiring drawn from the contact portion ;
An electric wire for detection branched from the wire harness connected to the wiring;
An electronic control unit having a circuit for detecting a contact state of the contact portion with the metal panel;
A wiring modification act detection device comprising: The wire modification act detection device according to claim 1,
The wire modification act detection device , wherein the fixing part is made of resin. The wiring modification act detection device according to claim 1 or 2,
The said fixing | fixed part is formed separately from the said interior member, The wiring modification act detection apparatus which fixes the said interior member to the said metal panel. The wiring modification act detection device according to claim 1 or 2,
The wire modification act detection device , wherein the fixing part is integrally formed with the interior member. The wiring modification act detection device according to any one of claims 1 to 4,
The wire modification act detection device , wherein the contact portion is integrally incorporated in the fixed portion.

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