JP4640022B2 - Mounting structure of vehicle hydraulic control device - Google Patents

Description

  The present invention relates to a hydraulic control device for a vehicle in which a hydraulic control device (hydraulic unit so-called HU) having an ABS function or / and a dynamic stability control function for controlling a brake fluid pressure is mounted in an engine room. It relates to the mounting structure.

  In general, a hydraulic control device that controls the braking oil pressure on the left and right front wheels and the left and right rear wheels is provided at the rear of the engine room so as not to be damaged during a light collision.

  In Patent Document 1, the above-described hydraulic control device is arranged between the front portion of the dash panel and the rear portion of the suspension tower portion, and is configured to protect the hydraulic control device from an impact force during a light collision. It is disclosed.

  However, when another powertrain auxiliary device such as an engine CPU or a battery is disposed between the front portion of the above-described dash panel and the rear portion of the suspension tower, it is necessary to dispose the hydraulic control device outside this place. .

In this case, a structure may be considered in which a hydraulic control device is arranged immediately behind the transmission case of the power train (engine and transmission) mounted in the engine room. If such an arrangement structure is adopted, the power train moves backward. In such a vehicle collision, the hydraulic control device described above is sandwiched between the transmission and the dash panel, which causes a problem that the amount of deformation of the dash panel toward the passenger compartment becomes large.
Japanese Patent No. 3401038

Accordingly, the present invention is focused on the weight relationship between the control unit and a motor unit constituting a hydraulic control device, arranged motor unit weight is greater than the control unit so that power train overlap in a front view of the vehicle In addition, when the power train retreating at the time of collision and the motor portion interfere with each other, the mounting portion does not interfere with the power train prior to the motor portion than the motor portion. By disposing at a distant position , the hydraulic control device is configured to move in a suitable direction by effectively using the impact force and the weight of the motor unit at the time of a vehicle collision such that the power train moves backward. Therefore, the amount of deformation of the dash panel toward the passenger compartment can be reduced, and the hydraulic control device can be applied to the powertrain that moves backward in the event of a collision and the motor unit. Thus, the hydraulic control device is configured to move rearward of the vehicle and outward of the vehicle, whereby the above-described hydraulic control device is sandwiched between the rear of the vehicle and outward of the vehicle (that is, between the power train and the dash panel). In addition, by forming a space that allows the hydraulic control device to move behind and outside the vehicle, the hydraulic control device at the time of a vehicle collision can be moved. The vehicle can be reliably moved rearward and outward of the vehicle, and the space can be used as a work space when assembling the hydraulic control device, thus ensuring good assembly of the hydraulic control device. It is an object of the present invention to provide a mounting structure for a vehicle hydraulic control device.

The mounting structure of the vehicle hydraulic control device according to the present invention is a mounting structure for a vehicle hydraulic control device provided in the engine room, provided with a dash panel that partitions the engine room and the vehicle compartment in the front-rear direction. A pair of left and right front frames extending in the front-rear direction, a power train positioned between the front frames, and a hydraulic control device provided behind the power train and having a brake oil supply or discharge pipe The hydraulic control device includes a control unit, a mounting unit fixed to the vehicle body, and a motor unit that is provided on the vehicle inner side than the mounting unit and is heavier than the control unit. , while disposed in the interference position capable with the powertrain retracted at the time of a collision by the powertrain and overlap in a front view, the When the power train retreating at the time of collision and the motor portion interfere with each other, the attachment portion is positioned away from the motor portion with respect to the power train so as not to interfere with the power train prior to the motor portion. and arranged, in the vehicle rear of the hydraulic control unit, and a is outward in the vehicle than the vehicle width direction outer end, the forward of the dash panel, a vehicle rear and vehicle outside of the entire hydraulic control system A space portion that allows movement in the direction is formed, and the power train that moves backward in the event of a collision and the motor portion come into contact with each other, whereby the entire hydraulic control device is configured to move rearward and outward of the vehicle. It is characterized by that.

  According to the above configuration, at the time of a vehicle collision such that the power train including the engine and the transmission is retracted, the retracted power train interferes with the motor portion of the hydraulic control device that overlaps the power train and the vehicle front view, The entire hydraulic control apparatus is moved in a suitable direction via a motor unit that is heavier than the control unit.

  This prevents the hydraulic control device from being pinched between the powertrain and the dash panel, reduces the amount of deformation of the dash panel toward the passenger compartment, and secures passenger compartment space and passenger safety. Can be achieved.

  The hydraulic control device is configured to move to the rear of the vehicle and to the outside of the vehicle by contacting the power train that moves backward in the event of a collision with the motor unit. As a result, the hydraulic control device described above can be moved rearward of the vehicle and in the vehicle outward direction (that is, the direction in which the hydraulic train is not sandwiched between the power train and the dash panel) in the event of a vehicle collision.

  Further, since a space for allowing movement of the hydraulic control device is formed at the rear of the hydraulic control device and outside the vehicle, the rear of the hydraulic control device and the outer side of the hydraulic control device at the time of a vehicle collision are formed. The space portion can be used as a working space when the hydraulic control device is assembled, and good assemblability of the hydraulic control device can be ensured.

In one embodiment of the present invention, the hydraulic control device is disposed inward of the vehicle and toward the front of the vehicle.
According to the above configuration, when the power train and the motor unit come into contact with each other due to the directional arrangement structure of the hydraulic control device, a rotational moment is likely to be generated, thereby promoting the rotation of the hydraulic control device in the retracting direction. Can do.

  In one embodiment of the present invention, the hydraulic control device includes a mounting bracket and a fixing bracket that supports the hydraulic control device on a vehicle body. The fixing bracket is located on the rear side of the vehicle and on the outside of the vehicle. It is formed to allow rotation in the direction.

  According to the above configuration, it is possible to achieve both the support of the hydraulic control device to the vehicle body at the normal time (non-collision) and the rotation permission of the hydraulic control device at the time of the collision by the fixed bracket.

  In one embodiment of the present invention, the fixing bracket includes a receiving portion that extends inward of the vehicle and receives the hydraulic control device, and the hydraulic control device is supported by the receiving portion via a movement allowing portion of the hydraulic control device. It is a thing.

  According to the above configuration, the hydraulic control device can be received and supported by the receiving portion of the fixed bracket, and at the time of a collision, the hydraulic control device can be moved away in the retracting direction by the movement allowing portion provided in the receiving portion. it can.

In one embodiment of the present invention, the movement allowance portion is set to a U-shaped groove portion that opens in the movement allowance direction.
According to the above configuration, the movement allowing portion can be easily formed by the U-shaped groove.

In one embodiment of the present invention, the fixed bracket is set such that the support rigidity with respect to the rear of the vehicle is smaller than the support rigidity in the downward direction.
According to the above configuration, since the support rigidity of the fixed bracket is set to be small in order to rotate the hydraulic control device to the rear of the vehicle, the rearward rotation of the hydraulic control device at the time of a collision can be promoted.

  In one embodiment of the present invention, the fixed bracket includes a suppressing portion that suppresses rotation of the hydraulic control device beyond a predetermined angle.

  According to the above configuration, since the suppressing unit suppresses rotation of the hydraulic control device by a predetermined angle or more, adverse effects on the brake oil supply or discharge piping can be prevented as much as possible.

  In one embodiment of the present invention, the hydraulic control device is provided in a kick-up portion that extends with an inclination so that the rear of the front frame is downward.

  According to the above configuration, the hydraulic control device can be rotationally moved to the upper space of the kick-up portion at the time of a vehicle collision, so that interference between the hydraulic control device and the front frame is avoided, and the hydraulic control device It can be rotated outward from the vehicle. In addition, an appropriate retreat space for the hydraulic control device can be ensured.

In one embodiment of the present invention, a powertrain auxiliary machine is provided in the moving direction of the hydraulic control device.
The powertrain auxiliary machine described above may be set to a CPU (engine CPU) for suppressing the engine or a battery for driving the vehicle.

  According to the above configuration, even if the powertrain auxiliary machine is provided in the moving direction of the hydraulic control device, the hydraulic control device can be disposed in the engine room so as to move in a suitable direction in the event of a vehicle collision.

  In one embodiment of the present invention, the hydraulic control device is disposed such that a power train that moves backward upon a collision comes into contact with a lower portion of the motor unit.

  According to the above configuration, since the power train that has moved backward in the event of a collision contacts the lower part of the motor unit of the hydraulic control device, the entire hydraulic control device can be retracted upward and rearward through the heavy motor unit. it can.

In one embodiment of the present invention, the hydraulic control device is disposed to face the inclined surface so that the inclined surface behind the power train is positioned below the hydraulic control device.
According to the above configuration, the hydraulic control device can be retreated by effectively utilizing the existing inclined surface of the power train.

In one embodiment of the present invention, the control unit is provided on the inner side of the vehicle with respect to the attachment unit fixed to the vehicle body, and the motor unit is provided on the inner side of the vehicle with respect to the control unit.
According to the said structure, when turning a hydraulic control apparatus using the weight of a motor, it becomes still more preferable.

  According to the present invention, the hydraulic control device is configured to move in a suitable direction by effectively using the impact force and the weight of the motor unit at the time of a vehicle collision in which the power train moves backward, and thereby the dash panel There is an effect that the amount of deformation of the vehicle toward the passenger compartment can be reduced.

In addition, the hydraulic control device is configured such that when the power train that retreats at the time of collision and the motor unit come into contact with each other and the power train that retreats at the time of collision interferes with the motor unit, the motor unit In order not to interfere with the power train prior to the vehicle , the power train is arranged at a position farther from the motor portion than the motor unit , so that the vehicle can move rearward and outward of the vehicle. There is an effect that sometimes the above-described hydraulic control device can be moved rearward of the vehicle and outward of the vehicle (that is, in a direction not to be sandwiched between the power train and the dash panel).
Further, by forming a space that allows the hydraulic control device to move behind and outward of the vehicle, the hydraulic control device can move rearward and outward of the vehicle in the event of a vehicle collision. In addition, the space portion can be used as a working space when the hydraulic control device is assembled, and it is possible to ensure good assembling performance of the hydraulic control device.

A dash panel that partitions the engine room and the vehicle compartment in the front-rear direction is provided, and is a mounting structure for a vehicle hydraulic control device provided in the engine room, the pair of left and right front frames extending in the vehicle front-rear direction, and the front A power train located between the frames, and a hydraulic control device provided behind the power train and having a brake oil supply or discharge pipe. The hydraulic control device includes a control unit and a vehicle body. A fixed mounting portion and a motor portion that is provided on the inner side of the vehicle than the mounting portion and that is heavier than the control portion, and the motor portion overlaps the power train in a front view and collides. while disposed in interfering possible position and said powertrain retracted during, and the powertrain to retract the mounting portion, during a collision When a serial motor unit interferes, so as not to interfere with the power train ahead of the motor unit, disposed at a position away than the motor unit relative to the power train, the vehicle rear side of the hydraulic control device In addition, a space is formed outside the vehicle width direction outer side end and in front of the dash panel to allow movement of the entire hydraulic control device to the rear of the vehicle and outward of the vehicle. The power train, which is sometimes retracted, and the motor unit come into contact with each other, so that the entire hydraulic control device is configured to move rearward of the vehicle and outward of the vehicle.

An embodiment of the present invention will be described in detail with reference to the drawings.
The drawings show a mounting structure of a vehicle hydraulic control device. In FIGS. 1 and 2, a pair of left and right front side frames 2 and 2 extending in the front-rear direction of the vehicle are provided on the left and right sides of the engine room 1 Only the front side frame is shown).

The above-described front side frame 2 is a vehicle body rigid member (strength member) having a kick-up portion 2a that extends with an inclination so that the rear side is downward.
A power train 3 is mounted between the pair of left and right front side frames 2 and 2 via a plurality of engine mounts (not shown). The power train 3 includes an engine 4 that is disposed horizontally and a transmission 5 that is coupled to the engine 4.

  As shown in FIG. 1, a dash panel 6 that partitions the engine room 1 and the vehicle compartment in the front-rear direction is provided, and a floor panel 7 that extends substantially horizontally toward the rear of the vehicle is provided at the lower end of the dash panel 6. In addition, a tunnel portion 8 that protrudes toward the vehicle interior side and extends in the front-rear direction of the vehicle is integrally or integrally formed at the center portion of the floor panel 7 in the vehicle width direction.

  The rear part of the kick-up part 2a of the front side frame 2 extends downward along the dash panel 6 and is configured to be continuous with a floor frame (not shown) provided at the lower part of the floor panel 7. As shown in FIGS. 1 and 2, a wheel apron 9 and a high-rigidity suspension tower 10 (suspension / tower) are provided outside the front side frame 2 on the engine room 1 side.

  An engine CPU 11 serving as a powertrain auxiliary machine is disposed immediately after the corner portion on the inner side in the vehicle width direction and on the rear side of the vehicle in the highly rigid suspension tower portion 10. The engine CPU 11 is a control unit that controls the engine 4 and the transmission 5 and is slanted so that the inner end in the vehicle width direction is located at the front of the vehicle and the outer end in the vehicle width direction is located at the rear. Yes.

Further, a battery 13 is disposed via a battery support case 12 on the front side of the suspension tower 10 and on the inner side in the vehicle width direction.
3 is an enlarged plan view showing the main part of FIG. 1, FIG. 4 is a side view of the main part of FIG. 2 viewed from the engine room 1 side, and FIG. 5 is a front view. A hydraulic control device 15 (hereinafter simply referred to as a hydraulic unit) is attached to the kick-up portion 2a of the front side frame 2 on the left side of the vehicle via a fixed bracket 14.

  The hydraulic unit 15 includes a CPU unit 16 as a control unit, a hydraulic circuit unit 17, a motor unit 18 that is heavier than the CPU unit 16, and a plurality of pipes for supplying or discharging brake oil. And a brake oil pressure for the left and right front wheels and the left and right rear wheels.

  The hydraulic unit 15 is provided at the rear of the transmission 5 in the power train 3 as shown in FIGS. 1 and 2 so that the hydraulic unit 15 is not damaged at the time of a light vehicle collision. As shown, the transmission 5 is provided so as to overlap in the front-rear direction.

  Here, in the hydraulic unit 15 described above, the CPU 16 is attached from a mounting portion (see a portion where the fixing bracket 14 is bolted up by bolts 21 and 22 described later) to be fixed to the front side frame 2 as a vehicle body. Is also provided inside the vehicle, and the motor unit 18 described above is provided further inside the vehicle than the CPU unit 16.

  That is, the motor unit 18 having a large weight is disposed at a position where it will intentionally interfere with the transmission 5 at the time of a vehicle collision in which the power train 3 moves backward, and the transmission 5 (specifically, its transmission case) that moves backward at the time of the collision. The hydraulic unit 15 is moved rearward and outward of the vehicle as shown by an arrow a in FIG. 3 by contacting the motor unit 18 and utilizing the impact force at the time of collision and the weight of the motor unit 18. It is configured to rotate and retract so that it is not pinched between the dash panel 6.

  For this reason, as shown in FIG. 5, a space portion 20 that allows retraction movement (rotational movement) of the hydraulic unit 15 in the same direction is formed in the vehicle rearward direction and the vehicle outward direction of the hydraulic unit 15. ing. This space portion 20 effectively utilizes the space above the kick-up portion 2a in the front side frame 2 as it is.

  Further, as shown in FIG. 4, the above-described hydraulic unit 15 is disposed so that the transmission 5 of the power train 3 that moves backward comes into contact with the lower portion of the motor unit 18 in the event of a collision.

  More specifically, in the hydraulic unit 15, the curved inclined surface 5 a behind the transmission 5 in the power train 3 is positioned below the motor unit 18 of the hydraulic unit 15 as shown in FIGS. 2 and 4. The inclined surface 5a is disposed opposite to the inclined surface 5a. In other words, when the vehicle collides, the power train 3 moves backward and slightly obliquely upward as indicated by an arrow b in FIG. 4, so that it reliably interferes with the transmission 5 (especially its transmission case) of the retreating power train 3. Thus, the arrangement structure is such that both 5 and 18 abut.

Furthermore, for the purpose of promoting the rotational movement of the hydraulic unit 15 in the direction of arrow a in FIG.
As shown in FIG. 3, the hydraulic unit 15 is disposed inward of the vehicle and toward the front of the vehicle.

  That is, as shown in the plan view of FIG. 3 in the kick-up portion 2a of the front side frame 2, the hydraulic unit 15 is interposed via the fixing bracket 14 at an inclined portion that is inclined so that its front is outward in the vehicle width direction. And a slant arrangement in which the motor unit 18 of the hydraulic unit 15 is directed inward in the vehicle width direction and forward of the vehicle.

  The above-described fixing bracket 14 is a bracket for supporting the hydraulic unit 15 on the kick-up portion 2a of the left front side frame 2 as a vehicle body. The fixing bracket 14 includes a front mounting piece 14a and a rear mounting bracket. A piece 14b, a front piece 14c extending inward in the vehicle width direction from the front attachment piece 14a, a rear piece 14d extending inward in the vehicle width direction from the rear attachment piece 14b, a lower portion and a rear part of the front piece 14c The lower piece 14e that connects the lower part of the piece 14d and the receiving piece 14f that rises upward from the inner end in the vehicle width direction of the lower piece 14e and receives the hydraulic unit 15 are formed into a metal plate having a relatively thin plate thickness. Are integrally formed.

  The front and rear mounting pieces 14a and 14b correspond to the shape in which the kick-up portion 2a of the front side frame 2 is inclined backward, so that the front mounting piece 14a is positioned higher than the rear mounting piece 14b. The front mounting piece 14 a is bolted up to the kick-up portion of the front side frame 2 using two bolts 21 and 21, and the rear mounting piece 14 b uses one bolt 22. And bolted up to the kick-up portion of the front side frame 2.

  Of the lower piece 14e and the receiving piece 14f that extends inward of the vehicle and receives the hydraulic unit 15, the receiving piece 14f has a U-shape that opens upward as a movement allowing portion for the hydraulic unit 15. A pair of front and rear groove portions 14g and 14g are formed, while bolts 23 and 23 are pre-installed in the pair of mounting boss portions 15B and 15B of the hydraulic unit 15, and the vehicle width from the pair of groove portions 14g and 14g. The hydraulic unit 15 is supported by the fixing bracket 14 by tightening the nuts 24 and 24 to the bolt 23 protruding inward in the direction.

  This fixing bracket 14 is set so that the support rigidity of the hydraulic unit 15 with respect to the rear of the vehicle is smaller than the support rigidity in the lower direction. The lower piece 14e and the receiving piece 14f The hydraulic unit 15 is configured to accept the vehicle reliably and to allow the hydraulic unit 15 to rotate rearward and outward of the vehicle in the event of a vehicle collision.

  Further, the rear piece 14d of the fixing bracket 14 described above is also configured to serve as a suppression unit that suppresses rotation of the hydraulic unit 15 beyond a predetermined angle, and the rotation angle of the hydraulic unit 15 is determined by the rear piece 14d (suppression unit). Alternatively, the rotational speed is adjusted to prevent adverse effects on the pipe 19 in which brake oil is present.

  In place of the configuration of FIG. 4, as shown in FIG. 6, laterally-shaped U-shaped grooves 14 h and 14 h that open to the front are formed on the mounting pieces 14 a of the fixing bracket 14 corresponding to the bolts 21 and 21, thereby You may comprise so that the rotation promotion of the hydraulic unit 15 in time may further be improved. In the figure, arrow F indicates the front of the vehicle, arrow R indicates the rear of the vehicle, arrow IN indicates the inside of the vehicle, and arrow OUT indicates the outside of the vehicle.

  In the mounting structure of the vehicle hydraulic control device (hydraulic unit) configured as described above, the hydraulic unit 15 includes the lower piece 14e of the fixing bracket 14 and the receiving piece 14f at the normal time (non-collision time). Therefore, it is securely fixed and held at a fixed position without being affected by the running vibration of the vehicle.

  Further, in the event of a light vehicle collision that does not cause the powertrain 3 to move backward, the hydraulic unit 15 is located behind the transmission 5, so that the hydraulic unit 15 is not damaged.

  On the other hand, at the time of a vehicle collision such that the power train 3 moves backward, the engine 4 and the transmission 5 move backward (see the direction of arrow b in FIG. 4), and the inclined surface 5a in the transmission case of the transmission 5 The motor unit 18 of the lick unit 15 is abutted (abutted).

  Due to both the impact force and the weight of the motor unit 18, a rotational moment is generated in the hydraulic unit 15 that retracts the unit 15 to the imaginary line position α in FIG. 3.

  For this reason, the hydraulic unit 15 rotates rearward and outward of the vehicle as indicated by an arrow a in FIG. 3, but the hydraulic unit 15 deforms the fixed bracket 14 and deforms the pair of grooves 14g and 14g. Accordingly, the hydraulic unit 15 is sandwiched between the dash panel 6 and the retreated transmission 5 because the hydraulic unit 15 is retracted and moved to the space 20 above the kick-up portion 2a in the front side frame 2 while moving upward. Can be prevented.

  As described above, the mounting structure of the vehicle hydraulic control device according to the above embodiment is a mounting structure of the vehicle hydraulic unit 15 provided in the engine room 1 and includes a pair of left and right front side frames 2 extending in the vehicle front-rear direction. , 2, a power train 3 positioned between the front side frames 2, 2, and a hydraulic unit 15 provided behind the power train 3 and having a pipe 19 for supplying or discharging brake oil. The hydraulic unit 15 includes a control unit (see the CPU unit 16) provided on the vehicle inner side than an attachment unit fixed to the vehicle body (see the left front side frame 2), and the control unit (the CPU unit 16). And a motor unit 18 having a weight greater than that of the control unit (CPU unit 16). Over data section 18 are those provided to overlap with the power train 3 in the vehicle front view.

  According to this configuration, at the time of a vehicle collision in which the power train 3 including the engine 4 and the transmission 5 moves backward, the vehicle is retracted to the motor unit 18 of the hydraulic unit 15 that overlaps the power train 3 when viewed from the front of the vehicle. The power train 3 interferes and moves the entire hydraulic unit 15 in a suitable direction via the motor unit 18 that is heavier than the control unit (CPU unit 16).

  This prevents the hydraulic unit 15 from being sandwiched between the powertrain 3 and the dash panel 6, reduces the amount of deformation of the dash panel 6 toward the passenger compartment, and secures the passenger compartment space, It is possible to achieve both safety and safety.

  The hydraulic unit 15 is configured to move rearward of the vehicle and outward of the vehicle by contacting the power train 3 that moves backward in the event of a collision and the motor unit 18.

  According to this configuration, the above-described hydraulic unit 15 can be moved rearward of the vehicle and in the vehicle outward direction (that is, a direction in which the hydraulic unit 15 is not sandwiched between the power train 3 and the dash panel 6) in the event of a vehicle collision.

  In addition, a space 20 that allows movement of the hydraulic unit 15 is formed behind and outside the hydraulic unit 15.

  According to this configuration, since the space portion 20 that allows the movement of the hydraulic unit 15 is formed, the movement of the hydraulic unit 15 to the rear of the vehicle and to the outside of the vehicle at the time of a vehicle collision is ensured. The part 20 can also be used as a work space when the hydraulic unit 15 is assembled, and the assembling property of the hydraulic unit 15 can be ensured.

Furthermore, the hydraulic unit 15 is disposed so as to be directed inward of the vehicle and forward of the vehicle.
According to this configuration, when the power train 3 and the motor unit 18 come into contact with each other due to the directional arrangement of the hydraulic unit 15, a rotational moment is likely to be generated, whereby the hydraulic unit 15 is rotated in the retracting direction. Can be promoted.

  The hydraulic unit 15 has a mounting bracket (see mounting pieces 14a and 14b) and a fixing bracket 14 for supporting the hydraulic unit 15 on the vehicle body (see the left front side frame 2). The bracket 14 is formed to allow the hydraulic unit 15 to rotate rearward of the vehicle and outward of the vehicle.

  According to this configuration, it is possible to achieve both the support of the hydraulic unit 15 to the vehicle body at the normal time (non-collision) and the rotation allowance of the hydraulic unit 15 at the time of the collision by the fixed bracket 14.

  In addition, the fixed bracket 14 includes a receiving portion (see receiving portion piece 14f) that extends inward of the vehicle and receives the hydraulic unit 15, and the moving portion of the hydraulic unit 15 (see groove portion 14g) is provided in the receiving portion. The hydraulic unit 15 is supported via

  According to this configuration, the hydraulic unit 15 can be received and supported by the receiving portion (see the receiving piece 14f) of the fixed bracket 14, and the movement allowing portion (see the groove portion 14g) provided in the receiving portion at the time of a collision. Thus, the hydraulic unit 15 can be moved away in the retracting direction.

Further, the movement allowance portion is set to a U-shaped groove portion 14g that opens the movement allowance direction.
According to this configuration, the movement allowing portion can be easily formed by the U-shaped groove portion 14g.
Further, the fixed bracket 14 is set such that the support rigidity with respect to the rear of the vehicle is smaller than the support rigidity in the downward direction.

  According to this configuration, since the support rigidity of the fixed bracket 14 is set small in order to rotate the hydraulic unit 15 to the rear of the vehicle, it is possible to promote the rearward rotation of the hydraulic unit 15 at the time of a collision. it can.

In addition, the fixed bracket 14 includes a suppressing portion (see the rear piece 14d) that suppresses the rotation of the hydraulic unit 15 by a predetermined angle or more.
According to this configuration, the suppressing portion (rear piece 14d) suppresses the rotation of the hydraulic unit 15 by a predetermined angle or more, so that adverse effects on the brake oil supply or discharge pipe 19 can be prevented as much as possible. it can.

  Moreover, the hydraulic unit 15 is provided in the kick-up portion 2 that extends with an inclination so that the rear side of the front side frame 2 is downward.

  According to this configuration, the hydraulic unit 15 can be rotationally moved to the upper space of the kick-up portion 2a at the time of a vehicle collision, so that interference between the hydraulic unit 15 and the front side frame 2 can be avoided. The unit 15 can be rotated and moved rearward of the vehicle and outward of the vehicle. Moreover, the retreat space (refer to the space part 20) of the hydraulic unit 15 can be ensured.

  Further, a power train auxiliary machine (see engine CPU 11) is provided in the moving direction of the hydraulic unit 15.

  According to this configuration, even if the power train auxiliary machine (engine CPU 11) is provided in the moving direction of the hydraulic unit 15, the hydraulic unit 15 is placed in the engine room 1 to move in a suitable direction at the time of a vehicle collision. It can be arranged.

Further, the hydraulic unit 15 is disposed such that the power train 3 that moves backward upon a collision comes into contact with the lower portion of the motor unit 18.
According to this configuration, the powertrain 3 that has moved backward in the event of a collision comes into contact with the lower portion of the motor unit 18 of the hydraulic unit 15, so that the entire hydraulic unit 15 is obliquely upward and rearward of the vehicle via the heavy motor unit 18. Can be retreated.

  In addition, the hydraulic unit 15 is disposed to face the inclined surface 5 a so that the inclined surface 5 a behind the power train 3 is positioned below the hydraulic unit 15.

  According to this configuration, the hydraulic unit 15 can be retreated using the existing inclined surface 5a of the powertrain 3 effectively.

In the correspondence between the configuration of the present invention and the above-described embodiment,
The hydraulic control device of the present invention corresponds to the hydraulic unit 15 of the embodiment,
Similarly,
The front frame corresponds to the front side frame 2,
The control unit corresponds to the CPU unit 16,
The mounting part of the fixing bracket corresponds to the mounting pieces 14a and 14b,
The receiving part corresponds to the receiving part piece 14f,
The movement allowing portion corresponds to the groove portion 14g,
The suppressor corresponds to the rear piece 14d,
The powertrain auxiliary machine corresponds to the engine CPU11,
The present invention is not limited to the configuration of the above-described embodiment.
For example, the movement allowing portion provided on the receiving piece 14f of the fixed bracket 14 may be a long hole instead of the groove portion 14g.

Schematic plan view showing the mounting structure of the vehicle hydraulic control device Side view showing the mounting structure of the hydraulic control unit as seen from the engine room side The top view which expands and shows the principal part of FIG. The side view which expands and shows the principal part of FIG. Front view showing mounting structure of hydraulic control device Side view showing another embodiment of mounting structure of hydraulic control device for vehicle

1. Engine room 2. Front side frame (front frame)
2a ... Kick-up part 3 ... Powertrain 5a ... Inclined surface 11 ... Engine CPU (Powertrain auxiliary machine)
14 ... Fixing brackets 14a, 14b ... Mounting piece (mounting part)
14d ... rear piece (suppressing part)
14f ... receiving part piece (receiving part)
14g ... Groove (movement allowance)
15 ... Hydraulic unit (hydraulic control device)
16 ... CPU unit (control unit)
18 ... Motor part 19 ... Piping 20 ... Space part

Claims (12)

A dash panel is provided to partition the engine room and vehicle compartment in the front-rear direction.
A mounting structure of a hydraulic control device for a vehicle provided in the engine room,
A pair of left and right front frames extending in the longitudinal direction of the vehicle;
A power train located between the front frames,
A hydraulic control device provided behind the power train and having a pipe for supplying or discharging brake oil;
The hydraulic control device includes a control unit, an attachment unit fixed to the vehicle body, and a motor unit that is provided on the vehicle inner side than the attachment unit and is heavier than the control unit,
The motor unit is disposed at a position where it can interfere with the power train that overlaps with the power train in a front view and moves backward during a collision,
When the power train that moves backward in the event of a collision with the motor portion interferes with the power train prior to the motor portion, the mounting portion is positioned away from the motor portion with respect to the power train. Are arranged in the
Allowing the entire hydraulic control device to move rearward and outward of the vehicle behind the hydraulic control device and outside the vehicle width direction outer end and forward of the dash panel A space to be formed,
Installation of a hydraulic control device for a vehicle characterized in that the entire hydraulic control device is configured to move to the rear of the vehicle and outward of the vehicle by contacting the power train that moves backward in the event of a collision and the motor unit. Construction. The mounting structure of the hydraulic control device for a vehicle according to claim 1, wherein the hydraulic control device is disposed inwardly of the vehicle and directed forward of the vehicle. The hydraulic control device includes a mounting bracket and a fixing bracket that supports the hydraulic control device on a vehicle body,
The mounting structure for a vehicle hydraulic control device according to claim 1 or 2, wherein the fixing bracket is formed to allow the hydraulic control device to rotate rearward of the vehicle and outward of the vehicle. The fixed bracket includes a receiving portion that extends inward of the vehicle and receives the hydraulic control device,
The mounting structure of the hydraulic control device for a vehicle according to claim 3, wherein the receiving portion is supported by the hydraulic control device via a movement allowing portion of the hydraulic control device. The mounting structure for a hydraulic control device for a vehicle according to claim 4, wherein the movement allowance portion is set to a U-shaped groove that opens in a movement allowance direction. The mounting structure for a hydraulic control device for a vehicle according to claim 3, wherein the fixed bracket has a support rigidity with respect to the rear of the vehicle set to be smaller than a support rigidity in a downward direction. The mounting structure of the hydraulic control device for a vehicle according to any one of claims 3 to 6, wherein the fixed bracket includes a suppressing portion that suppresses rotation of the hydraulic control device beyond a predetermined angle. The mounting structure of the hydraulic control device for a vehicle according to any one of claims 1 to 6, wherein the hydraulic control device is provided in a kick-up portion that extends so as to incline so that the rear of the front frame is downward. The mounting structure of the hydraulic control device for a vehicle according to any one of claims 1 to 8, wherein a powertrain auxiliary machine is provided in a moving direction of the hydraulic control device. The mounting structure of the hydraulic control device for a vehicle according to any one of claims 1 to 9, wherein the hydraulic control device is disposed such that a power train that moves backward upon a collision comes into contact with a lower portion of the motor unit. The mounting structure for a hydraulic control device for a vehicle according to claim 10, wherein the hydraulic control device is disposed so as to face the inclined surface so that an inclined surface behind the power train is positioned below the hydraulic control device. The control unit is provided on the vehicle inner side than the mounting unit fixed to the vehicle body,
The mounting structure for a hydraulic control device for a vehicle according to any one of claims 1 to 11, wherein the motor unit is provided inside the vehicle with respect to the control unit.

Images