JP2011230577A - Harness arrangement structure of abs actuator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a harness arrangement structure of an ABS actuator which can improve wiring performance by shortening the length of a harness, and can reduce the number of clamps by restraining flapping.SOLUTION: A connector 23 for the ABS actuator is arranged between a rear wall 4 of an ABS actuator installing bracket 1 and the ABS actuator 10 for installing the ABS actuator 10 mounted on a vehicle in a vehicle body frame, a bending part 4A bending backward is formed on the upper end of the rear wall 4 of the ABS actuator installing bracket 1, the bending part 4A is attached with an acceleration sensor 11 integrated with a connector 13, and the harnesses 25 and 24 are connected from the vehicle central side to the connector 13 of the acceleration sensor 11 and the connector 23 for the ABS actuator, respectively.

Description

  The present invention relates to a harness arrangement structure of an ABS actuator mounted on a vehicle.

  The vehicle is equipped with an ABS (Anti-Lock Braking System) that prevents the wheels from locking even when sudden braking is applied when traveling on a frozen road surface, for example. , An acceleration sensor (G sensor) for detecting the deceleration of the vehicle, a wheel speed sensor for detecting the rotational speed of each wheel, and calculating the optimum rotational speed of each wheel based on the detected values of these acceleration sensors and wheel speed sensors The controller includes an ABS actuator that controls the hydraulic pressure supplied to the brakes of each wheel by a control signal output from the controller.

  In order to prevent sound and vibration during operation from propagating to the passenger compartment, the ABS actuator provided in such an ABS is provided with an ABS actuator inside one of a pair of side members extending in the front-rear direction on both sides of the vehicle. It is attached via a mounting bracket (see, for example, Patent Document 1).

  However, since the ABS actuator is arranged behind the front wheel, muddy water and pebbles jumped up by the front wheel may fly in the direction of the ABS actuator, and there is a possibility that the ABS actuator will be splashed with water or stones will hit. there were.

  Therefore, Patent Document 2 proposes a configuration in which the ABS actuator is installed behind the cross member of the vehicle body frame and on the inner side surface in the vehicle width direction of one side member via the ABS actuator mounting bracket.

Japanese Patent Laid-Open No. 10-297457 JP 2007-055422 A

  By the way, an ABS actuator and an acceleration sensor are attached to the ABS actuator mounting bracket, and these are provided with connectors for connecting harnesses, and the harness connected to the acceleration sensor is connected to the harness connected to the ABS actuator. Branched.

  Thus, when the connectors are arranged apart from each other, the length of the harness connected to the acceleration sensor becomes long and may flutter and come into contact with peripheral devices such as a brake pipe. For this reason, it is necessary to increase the number of clamps for fixing the harness to suppress the flapping of the harness.

  The present invention has been made in view of the above problems, and the object of the present invention is to optimize the arrangement of each connector of the ABS actuator and the acceleration sensor, shorten the length of the harness, and improve the wiring property and fluttering. An object of the present invention is to provide a harness arrangement structure for an ABS actuator that can be suppressed and reduce the number of clamps.

  In order to achieve the above object, according to the first aspect of the present invention, an ABS actuator connector is arranged between a rear wall of an ABS actuator mounting bracket for mounting an ABS actuator mounted on a vehicle to a vehicle body frame and the ABS actuator. And forming a bent portion bent backward at the upper end of the rear wall of the ABS actuator mounting bracket, and mounting an acceleration sensor integrated with a connector to the bent portion. The connector of the acceleration sensor and the ABS actuator It is characterized in that the harness is connected to each connector from the vehicle center side.

  According to a second aspect of the present invention, in the first aspect of the present invention, a clamp for fixing the harness is attached to a rear wall of the ABS actuator mounting bracket.

  According to the first aspect of the present invention, since the connector for the acceleration sensor and the connector for the ABS actuator are arranged close to each other, the length of the harness connected to the acceleration sensor is shortened, and the routing is improved. It is possible to suppress the contact of the harness with peripheral devices such as a brake pipe, and the number of clamps for fixing the harness can be reduced.

  According to the invention described in claim 2, since the harness is fixed by the clamp attached to the rear wall of the ABS actuator mounting bracket, the harness is prevented from contacting the ABS actuator mounting bracket, and the harness is protected from damage. Durability can be increased.

It is a perspective view of an ABS actuator mounting bracket. It is a top view of an ABS actuator mounting bracket. It is a partial bottom view of the vehicle body frame of the vehicle showing the mounting position of the ABS actuator. It is the perspective view which looked at the ABS actuator attaching part of vehicles provided with the harness arrangement structure concerning the present invention from the vehicle width direction inside. It is a bottom view of the ABS actuator attachment part of a vehicle. It is the sectional view on the AA line of FIG. FIG. 6 is a sectional view taken along line B-B in FIG. 5.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 is a perspective view of an ABS actuator mounting bracket, FIG. 2 is a plan view of the ABS actuator mounting bracket, FIG. 3 is a partial bottom view of a vehicle body frame showing the mounting position of the ABS actuator, and FIG. 4 is a harness according to the present invention. FIG. 5 is a bottom view of the ABS actuator mounting portion, FIG. 6 is a cross-sectional view taken along line AA in FIG. 5, and FIG. FIG. 5 is a sectional view taken along line BB in FIG.

  As shown in FIG. 3, a pair of left and right side members 100 (only the right side is shown in FIG. 3) constituting a part of the vehicle body frame of the vehicle extends in the vehicle front-rear direction, and the front wheel 101 of the right side member 100 is An ABS actuator 10 is attached via an ABS actuator mounting bracket 1 to the inner surface (the outer surface on the inner side in the vehicle width direction) at the rear position. The ABS actuator 10 is for controlling the hydraulic pressure supplied to the brakes of each wheel by a control signal output from a controller (not shown), and includes a controller, an acceleration sensor, and a wheel speed sensor. And ABS).

  Here, the detailed configuration of the ABS actuator mounting bracket 1 will be described below with reference to FIGS. 1 and 2.

  The ABS actuator mounting bracket 1 is for mounting the ABS actuator 10 to the side member 100, and is a rectangular box-shaped part with an open top obtained by press forming of a sheet metal. From the periphery of the substantially rectangular bottom wall 2 of the ABS actuator mounting bracket 1, a front wall 3 and a rear wall 4 as vertical walls, an outer wall 5 having a large area, and an inner wall 6 having a small area are bent at a substantially right angle. Has been. In the present embodiment, the outer wall 5 is configured separately from the front wall 3, the rear wall 4, and the inner wall 6, and the two are joined and integrated by welding to form a rectangular box-shaped ABS actuator mounting bracket 1. Has been.

  By the way, the ABS actuator 10 is mounted and fixed on the bottom wall 2 of the ABS actuator mounting bracket 1 as will be described later. As shown in FIGS. 5 and 6, a circular hole is formed on the bottom surface of the ABS actuator 10. A ventilating port 10a is opened. A convex portion 2A having a substantially triangular shape in plan view is formed by embossing at a central portion of the bottom wall 2 of the ABS actuator mounting bracket 1 facing the ventilation opening 10a of the ABS actuator 10, and the convex portion 2A The height is higher than the surrounding height, and a drainage groove 2B is formed around the convex portion 2A of the bottom wall 2.

  And in the convex part 2A formed in the bottom wall 2 of the ABS actuator mounting bracket 1, a large-diameter through hole 2a for passing the bush 12 shown in FIG. 6 and a smaller-diameter fitting hole 2b are formed. The through holes 2a and the fitting holes 2b communicate with each other. Further, a notch 2c for harness attachment / detachment work is formed on the vehicle rear side portion of the bottom wall 2 of the ABS actuator mounting bracket 1 so as to cut out a part of the drainage groove 2B. Has been improved.

  Further, the front wall 3 and the rear wall 4 and the outer wall 5 and the inner wall 6 of the ABS actuator mounting bracket 1 are bent from the bottom wall 2. More specifically, the front wall 3 and the outer wall 5 and the front wall 3 and the inner wall 6 intersect each other. Notches 1a and 1b extending to the drainage groove 2B of the bottom wall 2 are formed in the corner part, and a notch 1c extending to the drainage groove 2B of the bottom wall 2 is also formed in the corner part where the rear wall 4 and the outer wall 5 intersect. ing.

  An opening 5a for weight reduction is formed in the outer wall 5 of the ABS actuator mounting bracket 1, and a bracket 5A is erected obliquely upward from the rear end of the outer wall 5 toward the rear, and from the lower end. The bracket 5B is formed horizontally toward the outer side. A long hole 5b that is long in the front-rear direction at the front end portion of the outer wall 5 that extends forward from the front wall 3, a long hole 5c that is long in the vertical direction in the bracket 5A, and a left-right direction (vehicle width direction) in the bracket 5B. Long holes 5d are respectively formed.

  Further, a notched circular fitting hole 6a is formed at the front end and the rear end of the inner wall 6 having a low height of the ABS actuator mounting bracket 1, respectively.

  A horizontal bent portion 4A that is bent at a right angle toward the rear is formed at the upper end of the rear wall 4 of the ABS actuator mounting bracket 1. Specifically, the lower portion of the rear wall 4 is cut out corresponding to the notch 2c for attaching / detaching the harness, but the upper portion of the rear wall 4 extends toward the center of the vehicle as compared with the lower portion, and is bent. Thus, the bent portion 4 </ b> A formed substantially horizontally extends further toward the center of the vehicle than the upper portion of the rear wall 4. Two bent holes 4a are formed in the bent portion 4A, and a square nut 7 (see FIGS. 2 and 5) is welded around the circular hole 4a on the lower surface of the bent portion 4A. A square nut 8 is welded to the upper inner surface of the rear wall 4, and a long hole 4b and a circular hole 4c that are long in the left-right direction (vehicle width direction) are formed on the side.

  Next, the mounting structure of the ABS actuator 10 using the ABS actuator mounting bracket 1 configured as described above will be described with reference to FIGS.

  An ABS actuator 10 and an acceleration sensor 11 are attached to the ABS actuator mounting bracket 1 in advance in the following manner before mounting on the vehicle. That is, a part of the bush 12 shown in FIG. 6 is passed from below through a large-diameter through hole 2a (see FIGS. 1 and 2) formed in the bottom wall 2 of the ABS actuator mounting bracket 1, and the bush 12 is slid. The small-diameter portion formed in the intermediate portion in the height direction is fitted into the small-diameter fitting hole 2b (see FIGS. 1 and 2) formed in the bottom wall 2, and the bush 12 is temporarily fixed to the bottom wall 2. Keep it. Further, an acceleration sensor 11 integrated with a connector 13 is placed on a horizontal bent portion 4A formed at the upper end of the rear wall 4 of the ABS actuator mounting bracket 1, and 2 (not shown) is inserted through the acceleration sensor 11. The bolt is passed through a circular hole 4a (see FIGS. 1, 2 and 5) formed in the bent portion 4A and screwed into a square nut 7 (see FIGS. 2 and 5) welded to the lower surface of the bent portion 4A. Thus, the acceleration sensor 11 is attached to the bent portion 4A.

  Next, the ABS actuator 10 is fitted into the ABS actuator mounting bracket 1 while the bush 15 supporting the side surface of the ABS actuator 10 is fitted into the fitting hole (see FIG. 6a) formed in the inner wall 6 of the ABS actuator mounting bracket 1 from above. It is placed on the bush 12 that is temporarily fixed to the bottom wall 2. Then, from this state, the bolts 14 inserted from the inside into the fitting holes 6a (see FIG. 1) of the bush 15 and the inner wall 6 are tightened at two locations on the lower inner surface of the ABS actuator 10, and the collar of the bush 12 and the bottom wall 2 are In a state where the ABS actuator 10 is elastically supported by the two bushes 15 and one bush 12 by tightening a bolt 16 inserted from below into the fitting hole 2b (see FIGS. 1 and 2) to the lower surface of the ABS actuator 10. The ABS actuator mounting bracket 1 is assembled.

  Next, the ABS actuator mounting bracket 1 in which the ABS actuator 10 and the acceleration sensor 11 are assembled as described above is attached to the inner surface of the right side member 100 as shown in FIG. 4 and FIG.

  That is, the ABS actuator mounting bracket 1 is formed by screwing bolts 17 and 18 inserted into a long hole 5b formed in the front end of the outer wall 5 and a long hole 5c formed in the bracket 5A into the vehicle center side of the right side member 100. The ABS actuator 10 and the acceleration sensor 11 are attached to the ABS actuator mounting bracket 1 by screwing a bolt 19 inserted into a long hole 5d formed in the bracket 5B. It is attached to the side member 100 via

  When the ABS actuator 10 and the acceleration sensor 11 are attached to the side member 100 via the ABS actuator mounting bracket 1 as described above, as shown in FIG. 4, the front wheel 101 (see FIG. A brake pipe 20 connected to a front brake (not shown), a brake pipe 21 connected to a rear brake (not shown) for a rear wheel, and a brake pipe 22 connected to a master cylinder (not shown) are respectively connected.

  By the way, in this embodiment, as shown in FIG. 4, an ABS actuator connector 23 is disposed between the rear wall 4 of the ABS actuator mounting bracket 1 and the ABS actuator 10, and this ABS actuator connector 23. A thick harness 24 is connected to. A thin harness 25 branched from the harness 24 is connected to a connector 13 formed integrally with the acceleration sensor 11, and an intermediate portion thereof is a circular hole 4c formed in the rear wall 4 of the ABS actuator mounting bracket 1 (see FIG. 1) and is supported by the rear wall 4 by a clamp 26 fitted therein. Therefore, in the present embodiment, the harnesses 24 and 25 are connected to the ABS actuator connector 23 and the connector 13 of the acceleration sensor 11 from the vehicle center side, respectively.

  By the way, in the state where the ABS actuator 10 of the ABS actuator mounting bracket 1 is mounted, a large-diameter through hole 2a is opened in the bottom wall 2 of the ABS actuator mounting bracket 1, but in this embodiment, FIGS. As shown, the through hole 2a is closed with a rubber cap 27 fitted into the through hole 2a from below.

  As described above, in the present embodiment, the acceleration sensor 11 is attached so that the harness 25 is connected from the vehicle central side to the bent portion 4A that protrudes toward the vehicle central side at the upper end of the rear wall 4. Since the ABS actuator connector 23 is disposed immediately before the harness 24 is connected from the center of the vehicle, the connector 13 of the acceleration sensor 11 and the ABS actuator connector 23 can be disposed close to each other on the ABS actuator mounting bracket 1. The length of the harness 25 connected to the cable 11 is shortened to improve the routing and assembling properties, and the fluttering of the harness 25 is suppressed, so that the harness 25 is in contact with peripheral devices such as the brake pipes 20 to 22. The number of clamps for fixing the harness 25 can be reduced. Since the ABS actuator connector 23 is disposed at a position between the rear wall 4 of the ABS actuator mounting bracket 1 and the ABS actuator 10, the acceleration is higher than that of the harness 24 attached to the ABS actuator connector 23. The connector 13 formed integrally with the sensor 11 is disposed so as to protrude toward the center of the vehicle, and the connection work of the harness 25 to the connector 13 of the acceleration sensor 11 becomes easy.

  In this embodiment, since the harness 25 is fixed by the clamp 26 attached to the rear wall 4 of the ABS actuator mounting bracket 1, the harness 25 is prevented from contacting the ABS actuator mounting bracket 1. Can be protected from damage and the durability of the harness 25 can be enhanced.

  In addition, in this embodiment, since the through hole 2a formed in the bottom wall 2 of the ABS actuator bracket 1 on which the ABS actuator 10 is placed and fixed is closed with the cap 27, the front wheel 101 splashes water on the road surface. Thus, even if the ABS actuator mounting bracket 1 is submerged, water does not pass through the through hole 2a, and water can surely enter the ABS actuator 10 from the ventilation port 10a opened at the bottom surface of the ABS actuator 10. Is prevented.

  Further, in the present embodiment, a convex portion 2A having a height higher than the surroundings is formed by embossing at the central portion of the bottom wall 2 of the ABS actuator mounting bracket 1 facing the ventilation port 10a that opens on the lower surface of the ABS actuator 10. Since the drainage groove 2B is formed around the convex portion 2A of the bottom wall, even if the ABS actuator 10 is flooded from above, the water is accumulated in the drainage groove 2B formed on the bottom wall 2 of the ABS actuator mounting bracket 1. The raised portion 2A that is one step higher than the drainage groove 2B does not collect. In this case, since the ventilation port 10a of the ABS actuator 10 is opened to a one-step higher convex portion (portion where 2A water does not accumulate) of the bottom wall 2 of the ABS actuator mounting bracket 1, the ventilation port 10a is moved from the ventilation port 10a to the ABS. Intrusion of water into the actuator 10 is reliably prevented.

  Furthermore, in the present embodiment, the water accumulated in the drainage groove 2B formed in the bottom wall 2 of the ABS actuator mounting bracket 1 is immediately discharged from the plurality of notches 1a to 1c. It does not stay for a long period of time, and water intrusion into the ABS actuator 10 from the ventilation port 10a of the ABS actuator 10 can be prevented more reliably.

DESCRIPTION OF SYMBOLS 1 ABS actuator mounting bracket 2 ABS actuator mounting bracket bottom wall 3 ABS actuator mounting bracket front wall 4 ABS actuator mounting bracket rear wall 4A Rear wall bent portion 5 ABS actuator mounting bracket outer wall 5A, 5B Outer wall bracket 6 ABS Inner wall of actuator mounting bracket 10 ABS actuator 11 Acceleration sensor 13 Acceleration sensor connector 23 ABS actuator connector 24, 25 Harness 26 Clamp 100 Side member (body frame)

Claims (2)

  An ABS actuator connector is disposed between a rear wall of an ABS actuator mounting bracket for mounting an ABS actuator mounted on a vehicle to a vehicle body frame and the ABS actuator, and is attached to an upper end of the rear wall of the ABS actuator mounting bracket. A bent portion that bends backward is formed, an acceleration sensor integrated with a connector is attached to the bent portion, and a harness is connected to the connector of the acceleration sensor and the ABS actuator connector from the vehicle center side, respectively. A harness arrangement structure of an ABS actuator characterized by the above. The ABS actuator harness arrangement structure according to claim 1, wherein a clamp for fixing the harness is attached to a rear wall of the ABS actuator mounting bracket.

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