JP5040291B2 - Support structure for vehicle motion control device - Google Patents

Description

  The present invention provides a hydraulic unit equipped with a plurality of hydraulic devices for individually controlling the hydraulic pressure applied to each wheel cylinder, a vehicle behavior sensor for detecting the behavior of the vehicle, and a hydraulic pressure. The present invention relates to a support structure for a vehicle motion control device that supports a vehicle motion control device integrated with a control unit that controls the unit on a vehicle body of the vehicle.

  2. Description of the Related Art Conventionally, a support structure for a vehicle motion control apparatus is known as disclosed in Patent Document 1. As shown in FIGS. 1 and 2 of Patent Document 1, the vehicle motion control device includes a hydraulic unit (2, 3), a control unit (4), and a vehicle behavior sensor (5). . The hydraulic unit 3 is supported by the support bracket (10) via three support members (11). The vehicle motion control device includes three or more support points (7, 8, 9) for supporting the support bracket (10). One plane (E) is defined by these support points, and this plane is arranged in the vicinity of the center of gravity (S) of the vehicle motion control device.

  Moreover, what is shown by patent document 2 is known as another type of support structure of the vehicle motion control apparatus. As shown in FIG. 4 of Patent Document 2, the valve block 19 is elastically suspended from a holder 25 via a screw 24 and a buffer element 22, and the controller unit 1 is attached to the holder 25 via a screw 24 ′. The controller unit 1 is separated from the valve block 19 via the intermediate chamber 15. The valve dome 12 protruding from the valve block 19 toward the controller unit 1 is surrounded by a valve coil 16 disposed in the controller unit 1 (magnetic plug). The valve coil 16 is connected to the printed circuit board 8 in the controller unit 1 by a removable connecting member 13 which is elastic and conductive.

Moreover, what is shown by patent document 3 is known as another type of support structure of the vehicle motion control apparatus. As shown in FIG. 9 of Patent Document 3, the bracket 160 is a substantially U-shaped main body 161 on which an electrohydraulic valve unit 162 is mounted. The electronic hydraulic valve unit 162 includes an ECU (Electronic Control Unit) 163 that carries at least one accelerometer and at least one angular velocity sensor. The electrohydraulic valve unit 162 is fixed to the bracket 160 by a plurality of threaded fasteners 164 (only one shown).
International Publication No. WO2005 / 039946 Pamphlet JP-T-2004-506572 JP-T-2004-535325

  In the support structure of the vehicle motion control device described in Patent Document 1, the support directions of the three support members (11) with respect to the hydraulic unit (3) are parallel to each other, that is, the support direction is one direction. Only. For this reason, in one direction, the vibration input from the vehicle body is appropriately damped, and the transmission of vibration generated by the operation of the hydraulic device of the vehicle motion control device is appropriately suppressed. However, with respect to directions other than the one direction, since the damping characteristic of the support member (11) is inferior to the support direction, vibrations input from the vehicle body are not easily attenuated, and the hydraulic device of the vehicle motion control device is operated. The generated vibration is difficult to be suppressed. Thus, a balanced input vibration attenuation characteristic and vibration transmission suppression characteristic with respect to vibrations in various directions cannot be obtained, and there is a risk that improvement in accuracy of behavior detection by the vehicle behavior sensor (5) may be hindered.

  Also, in the support structure for a vehicle motion control device described in Patent Document 2, the support directions for the vehicle motion control device at at least three positions are parallel to each other, that is, the support direction is one. Only direction. Further, the valve block 19 and the controller unit 1 are supported by an elastic connecting member 13 in the support direction. For this reason, similarly to Patent Document 1, it is impossible to obtain a well-balanced input vibration attenuation characteristic and vibration transmission suppression characteristic with respect to vibrations in various directions, and the accuracy of behavior detection by the vehicle behavior sensor (5) can be improved. May be hindered.

  In the support structure of the vehicle motion control device described in Patent Document 3, the electrohydraulic valve unit 162 is “fixed to the bracket 160 by a plurality of screwed fasteners 164 (only one shown). However, there is no specific description regarding a technique for obtaining a balanced input vibration damping characteristic and vibration transmission suppression characteristic with respect to vibrations in various directions.

  The present invention has been made to solve the above-described problems, and obtains a balanced input vibration damping characteristic and vibration transmission suppression characteristic with respect to vibrations in various directions in a support structure of a vehicle motion control device. An object of the present invention is to improve the detection accuracy of the vehicle behavior in the vehicle motion control device.

In order to solve the above problems, the structural feature of the invention according to claim 1 is that a hydraulic unit equipped with a plurality of hydraulic devices for individually controlling the hydraulic pressure applied to each wheel cylinder of the vehicle A vehicle motion sensor for detecting the behavior of the vehicle and a control unit for controlling the hydraulic unit are integrated into at least a bracket fixed to the vehicle body of the vehicle. A support structure for a vehicle motion control device that supports three or more support elastic members, wherein each support direction of at least three of the support elastic members is parallel to three coordinate axes of a three-dimensional coordinate system. Ri three directions der, each support direction are mutually different and the direction perpendicular to the third surface adjacent the vehicle motion control system, each elastic support member is supported at least three surfaces, each support The support portion of the vehicle motion control device by the elastic member is a portion of each surface supported by the support elastic member that is separated from the vertex angle formed by the three surfaces by a distance greater than the distance between the vertex angle and the center of each surface. and a Oh Rukoto in part a spaced relation to each other over a predetermined distance.

  The structural feature of the invention according to claim 2 is that, in claim 1, the three-dimensional coordinate system is an orthogonal coordinate system.

  The structural feature of the invention according to claim 3 is that, in claim 1 or claim 2, the support elastic member supports the motion control device of the vehicle in a compressed state in the support direction.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the hydraulic unit includes a substantially hexahedral main body, and the main body is a hydraulic device. A motor mounting surface on which the motor for driving the pump is mounted, a control unit mounting surface on the opposite side of the motor mounting surface to which the control unit is mounted, and a port formed to communicate with each wheel cylinder Forming surface, surface opposite to the port forming surface, connector surface mated with the connector forming surface of the control unit on which the connector is formed, and surface opposite to the connector surface. A surface opposite to the port forming surface and a surface opposite to the connector surface.

The structural feature of the invention according to claim 5 is that, in any one of claims 1 to 4 , the control unit houses a control board, the vehicle behavior sensor is on the control board, and a support elastic member. Among them, the support elastic member closest to the control board is arranged closer to the other support elastic members.

The structural feature of the invention according to claim 6 is that, according to any one of claims 1 to 5 , when there are three supporting elastic members, the fixing portion of the bracket fixed to the vehicle body is: A first fixed portion provided on the center of gravity side of the vehicle motion control device with respect to one plane including all support points by the support elastic member; and on a side opposite to the center of gravity of the vehicle motion control device with respect to the one plane. And a second fixing portion provided.
The structural feature of the invention according to claim 7 is that, in claim 6, the first fixing portion and the second fixing portion are coupled to the vehicle body at different positions in the vertical direction.

In the invention according to claim 1 configured as described above, the vehicle motion control device provided with the vehicle behavior sensor for detecting the behavior of the vehicle is fixed to the vehicle body via at least three supporting elastic members. Supported by a bracket. At this time, the supporting directions of at least three of the supporting elastic members are three directions parallel to the three coordinate axes of the three-dimensional coordinate system. Therefore, the support direction for the vehicle motion control device is not one direction as in the prior art, but three different directions. Therefore, the input vibration damping characteristics and the vibration transmission suppression characteristics are well balanced against vibrations in various directions. Obtainable. Accordingly, the vehicle motion control device accurately detects the vehicle behavior.
Further, each support direction is a direction perpendicular to three adjacent surfaces different from each other in the vehicle motion control device, and each support elastic member supports at least three surfaces. It is possible to obtain an input vibration damping characteristic and a vibration transmission suppressing characteristic that are well balanced with respect to the vibration in the direction.
Furthermore, the support location of the vehicle motion control device by each support elastic member is separated from the apex angle formed by the three surfaces by a distance equal to or more than the distance between the apex angle and the center of each surface. Since these are portions that are separated from each other by a predetermined distance or more, the distance between the support portions by the support elastic member can be made as long as possible. That is, the end portion of the vehicle motion control device can be supported as much as possible. Therefore, it is possible to suppress as much as possible swinging motion (for example, rotational vibration due to torque fluctuation of the pump motor) associated with the operation of the hydraulic device mounted on itself.

  In the invention according to claim 2 configured as described above, in the invention according to claim 1, since the three-dimensional coordinate system is an orthogonal coordinate system, the input vibration attenuation is more balanced against vibrations in various directions. Characteristics and vibration transmission suppression characteristics can be obtained.

  In the invention according to claim 3 configured as described above, in the invention according to claim 1 or 2, the support elastic member supports the motion control device of the vehicle in a state compressed in the support direction. It is possible to obtain an input vibration damping characteristic and a vibration transmission suppressing characteristic that are well balanced against vibrations in various directions while maintaining a high support rigidity.

In the invention according to claim 4 configured as described above, in the invention according to any one of claims 1 to 3 , the hydraulic unit includes a substantially hexahedron-shaped main body, A motor mounting surface to which a motor for driving a pump as a hydraulic device is mounted, a control unit mounting surface on the opposite side of the motor mounting surface to which a control unit is mounted, and a port for communicating with each wheel cylinder are provided. 3 surfaces having a formed port forming surface, a surface opposite to the port forming surface, a connector surface mated with a connector forming surface of the control unit on which the connector is formed, and a surface opposite to the connector surface Is a motor mounting surface, a surface opposite to the port forming surface, and a surface opposite to the connector surface. It can be equipped with a control device on the vehicle body.

In the invention according to Claim 5 configured as described above, in the invention according to any one of Claims 1 to 4 , the control unit accommodates the control board, and the vehicle behavior sensor is on the control board. Since the support elastic member closest to the control board among the support elastic members is disposed closer to the other support elastic members, the swinging motion associated with the operation of the hydraulic device mounted on the support elastic member By disposing the vehicle behavior sensor in a place with less influence, the vehicle motion control device can detect the vehicle behavior more accurately.

In the invention according to claim 6 configured as described above, in the invention according to any one of claims 1 to 5 , when there are three supporting elastic members, the bracket is fixed to the vehicle body. The fixed portion is provided on the center of gravity side of the vehicle motion control device with respect to one plane including all support points by the support elastic member, and the vehicle motion control device with respect to the one plane. And at least a second fixing portion provided on the side opposite to the center of gravity. Thus, when the vehicle motion control device vibrates relative to the bracket with a plane including all the support points by the support elastic member, the bracket supporting the vehicle motion control device is the first and The bracket is fixed to the vehicle body by the second fixing part, and the bracket suppresses relative vibration with respect to the vehicle body across the one plane. A well-balanced input vibration damping characteristic and vibration transmission suppressing characteristic can be obtained.
In the invention according to claim 7 configured as described above, in claim 6, the first fixing portion and the second fixing portion are coupled to the vehicle body at different positions in the vertical direction.

  Hereinafter, a support structure for a vehicle motion control apparatus according to the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing an outline of a hydraulic brake device 10 to which the support structure of the vehicle motion control device is applied. 2 to 4 are a front view, a top view, and a side view showing the vehicle motion control device 13 supported by the vehicle body B via the bracket 70.

  The hydraulic brake device 10 applies braking force to the wheels W of the vehicle. As shown in FIG. 1, the hydraulic brake device 10 includes a master cylinder 12, a wheel cylinder WC, a vehicle motion control device 13, and a reservoir tank 14.

  The master cylinder 12 generates a hydraulic pressure (basic hydraulic pressure) corresponding to a brake operation state caused by depression of the brake pedal 11 and supplies the hydraulic pressure to a wheel cylinder WC that regulates the rotation of the wheel W of the vehicle. The vehicle includes four wheels W and four wheel cylinders WC corresponding to the wheels W, respectively. In FIG. 1, only one of the four wheels W is shown.

  Each wheel cylinder WC is provided in each caliper CL and accommodates a piston (not shown) that slides in a liquid-tight manner. When a base hydraulic pressure or a control hydraulic pressure is supplied to each wheel cylinder WC, each piston presses a pair of brake pads (not shown) that are friction members, and a disk rotor that is a rotating member that rotates integrally with each wheel W. The rotation is regulated by sandwiching the DR from both sides. A friction brake is constituted by the brake pad and the disc rotor DR.

  In this embodiment, the disc type brake is adopted, but a drum type brake may be adopted. In this case, when a basic hydraulic pressure or a control hydraulic pressure is supplied to each wheel cylinder WC, each piston presses (expands) a pair of brake shoes (not shown), and a brake drum (not shown) rotates integrally with each wheel W. The rotation is restricted by abutting against the inner peripheral surface of (omitted).

  The vehicle motion control device 13 includes a hydraulic unit 21 equipped with a plurality of hydraulic devices for individually controlling the hydraulic pressure applied to each wheel cylinder WC of the vehicle M, and a vehicle behavior for detecting the behavior of the vehicle. This is a single structure (integrated structure) in which the sensor 60 is provided and the control unit 22 that controls the hydraulic unit 21 is integrated.

  The hydraulic unit 21 is generally well known, and includes a differential pressure control valve, a pressure increase control valve and a pressure reduction control valve constituting an ABS control valve, a reservoir, a pump, a motor for driving the pump, and the like. It is configured by packaging in one case. The hydraulic unit 21 can directly apply the basic hydraulic pressure from the master cylinder 12 to the wheel cylinder WC. Further, the hydraulic unit 21 can generate a control hydraulic pressure formed by driving the pump and controlling the hydraulic control valve in the wheel cylinder WC of each wheel W. That is, the hydraulic pressure unit 21 can generate hydraulic pressure in the wheel cylinder WC according to the operation state (depressed state) of the driver's brake pedal 11, or the driver's brake pedal 11 can be operated (depressed state). It is also possible to control the hydraulic pressure to the wheel cylinder WC regardless of

  The hydraulic unit 21 includes a substantially hexahedral main body 23 formed of a metal material. As schematically shown in FIG. 1, the main body 23 communicates with the master cylinder 12 via a pipe 17 and communicates with the wheel cylinder WC via a pipe 18. Specifically, the two ports P1 and P2 provided on the right side surface of the main body 23, that is, the motor mounting surface 23a to which the motor 33 is mounted (see FIG. 4) are two ports of the master cylinder 12 (one in FIG. 1). Only display). Ports P3 to P6 formed on the upper surface of the main body 23, that is, the port forming surface 23c (see FIG. 3) communicate with each wheel cylinder WC (only one is shown in FIG. 1).

  In the main body 23, oil passages connected to the ports P1 to P6 are formed. On the oil passage, a differential pressure control valve, a pressure increase control valve constituting an ABS control valve, a solenoid valve 31 as a pressure reduction control valve, a reservoir (not shown), a pump 32, and the like are arranged. Hydraulic equipment for individually controlling the hydraulic pressure applied to each wheel cylinder WC by the differential pressure control valve, the electromagnetic valve 31 that is the pressure increase control valve and the pressure reduction control valve constituting the ABS control valve, and the pump 32 It is.

  The solenoid valve 31 is assembled to a control unit mounting surface 23b to which the control unit 22 is mounted on the surface (left side surface) opposite to the motor mounting surface 23a of the main body 23. The electromagnetic valve 31 is attached to the main body 23 with the solenoid portion protruding into the first chamber R1. The terminal 31b3 of the electromagnetic valve 31 penetrates the partition wall 41b, and the tip thereof is soldered to the control board 50. The terminal 31b3 of the electromagnetic valve 31 may be indirectly connected to the control board 50 via a bus bar or the like. The electromagnetic valve 31 may be a linear valve (for example, a differential pressure control valve) or an on / off valve (for example, an ABS control valve).

  The pump 32 is a rotary pump, for example, and is disposed in the main body 23. The pump 32 is driven by a motor 33. The pump 32 is driven by the operation of the motor 33 assembled to the motor mounting surface 23a of the main body 23, and requires brake fluid from the master cylinder 12 via a reservoir (not shown) provided in the main body 23 or a suction opening / closing valve. Pump up according to.

  The main body 23 has a control unit 22 in which a surface (lower surface) 23d opposite to the port forming surface 23c and a connector 22g are formed in addition to the motor mounting surface 23a, the control unit mounting surface 23b and the port forming surface 23c. A connector surface (back surface) 23e to be combined with the connector forming surface 22e, and a surface (front surface) 23f opposite to the connector surface 23e.

The control unit 22 includes a casing 40 and a control board 50. The casing 40 includes a case 41 and a cover 42.
The case 41 is formed in a tray shape having an opening 41a. The case 41 is formed by integrally forming a base portion 41b as a base portion and a side portion 41c erected from the periphery of the base portion 41b from a synthetic resin. The opening end of the opening 41a (the tip of the side portion 41c) is in airtight contact with the control unit mounting surface 23b of the main body 23 of the hydraulic unit 21. Between the main body 23 and the case 41, a first chamber R1 for accommodating the electromagnetic valve 31 is formed.

  The cover 42 is formed in a tray shape having an opening 42a. In the cover 42, a base portion 42b and a side portion 42c erected from the periphery of the base portion 42b are integrally formed of synthetic resin. The opening end of the opening 42a (the tip of the side portion 42c) is bonded to the outer wall surface of the base portion 41b of the case 41 by vibration welding or the like. Between the case 41 and the cover 42, a second chamber R2 for accommodating the control board 50 is formed.

  As described above, the casing 40 has the opening 41 a and is attached to the block 21 so as to cover the electromagnetic valve 31 with the opening end of the casing 40 being in airtight contact with the control unit mounting surface 23 b of the main body 23.

  The base 41b of the case 41 is a partition that partitions the casing 40 into a first chamber R1 and a second chamber R2. The partition wall 41 b is disposed to face the control board 50.

  A pillar 45 for supporting the control board 50 is formed integrally with the case 41 on the partition wall 41b. The support column 45 supports (holds) the control board 50 by engaging a snap fit 45 a formed at the tip with an engagement hole formed in the control board 50.

  The control board 50 controls the motor 33 (pump 32) and each electromagnetic valve 31 based on signals input from a wheel speed sensor (not shown) for detecting the rotation speed (wheel speed) of the wheel W, a vehicle behavior sensor 60, and the like. Thus, normal brake, antilock brake control (ABS), skid prevention control (ESC), and the like are performed.

  In the normal brake, the basic hydraulic pressure from the master cylinder 12 generated by the operation of the brake pedal 11 is supplied to each wheel cylinder WC as it is to apply a braking force to each wheel W. At this time, the differential pressure control valve and the pressure increase control valve are open, the pressure reduction control valve is closed, and the pump 32 is not operated.

  The anti-lock brake control is a control that prevents the occurrence of wheel lock during braking and ensures the optimum braking force, vehicle stability, and steering performance even on slippery road surfaces. At this time, when it is detected that the brake pedal 11 is operated and brake braking is performed, control is performed to apply an optimum braking force to each wheel so that the difference between the wheel speed and the vehicle body speed does not exceed a predetermined value. carry out.

  Specifically, in order to control the pair of pressure increase control valves and pressure reduction control valves assigned to the wheels W to the pressure increase / hold / pressure reduction mode, the pressure increase control valve and the pressure reduction control valve correspond to each mode. Excited / de-energized. The pressure-increasing control valve and the pressure-reducing control valve are respectively de-energized in the pressure-increasing mode, and the pressure-increasing control valve and the pressure-reducing control valve are opened and closed, and in the holding mode, the pressure-increasing control valve is excited and de-energized, respectively In the pressure reducing mode, the pressure increasing control valve and the pressure reducing control valve are closed and opened, respectively. Other wheels are similarly controlled. Further, during the ABS control, the motor 33 is energized and the pump 32 is controlled to operate.

  The skid prevention control is a control for ensuring the stability of the vehicle by automatically controlling the brake and / or the engine when detecting a situation in which the turning vehicle is likely to skid. At this time, if the yaw rate sensor 61 detects that the vehicle is turning, the difference between the actual yaw rate detected by the yaw rate sensor 61 and the target yaw rate calculated based on the vehicle body speed, the steering angle of the vehicle, and the stability factor. The braking force is applied to the predetermined wheel or the output of the engine is controlled so that the engine is within the predetermined range.

  For example, when the rear wheel is likely to skid during a left turn, control for applying a braking force only to the right front wheel is performed to suppress this. At this time, the motor 33 is energized and the pump 32 is controlled to operate. The differential pressure control valve disposed between the master cylinder 12 and the wheel cylinder of the right front wheel is excited to be in a differential pressure state, and corresponds to those wheels so that no hydraulic pressure is applied to the wheels other than the right front wheel. The increased pressure control valve and the reduced pressure control valve are excited and de-energized to be closed, and the increased pressure control valve and the reduced pressure control valve corresponding to the right front wheel are de-energized to be opened and closed, respectively.

  The vehicle behavior sensor 60 detects the behavior of the vehicle M. The vehicle behavior sensor 60 is mounted on the control board 50. In the present embodiment, the vehicle behavior sensor 60 is a yaw rate sensor 61 that detects the yaw rate of the vehicle, or an acceleration sensor 62 that detects acceleration in the front-rear direction or the left-right direction of the vehicle.

  The yaw rate sensor 61 is, for example, a vibration type yaw rate sensor, and includes a tuning fork type vibration body (also serving as a detection unit). The vibrating body around which the excitation vibration is applied along the excitation direction perpendicular to the rotation axis of the vehicle M in the yaw direction (the axis located near the center of gravity of the vehicle M and substantially perpendicular to the horizontal plane) When a yaw rate is generated, a Coriolis force proportional to the yaw rate is generated in a detection direction that is perpendicular to the rotation axis and the excitation direction, that is, detection vibration is generated. The yaw rate sensor 61 outputs a displacement signal of the detected vibration to the control board 50 that is an electronic control device. Further, it may be a yaw rate sensor including a vibrating body of a type constituted by a square weight having a comb-like electrode for vibration.

The acceleration sensor 62 includes, for example, a mass supported by a beam. When acceleration is generated in the vehicle, the acceleration sensor 62 bends the beam, measures this distortion, and outputs it as a detection signal to the control board 50 which is an electronic control unit.
Further, the vehicle behavior sensor 60 may be disposed on the control board 50 and closer to the support elastic member closest to the control board 50 among the support elastic members 81 to 83 than the other support elastic members. desirable.

  The reservoir tank 14 stores brake fluid and supplies the brake fluid to the master cylinder 12 and the hydraulic unit 21. The reservoir tank 14 replenishes the master cylinder 12 with brake fluid via a pipe 19.

  The vehicle motion control device 13 configured as described above is supported by the bracket 70 fixed to the vehicle body B of the vehicle M via three support elastic members 81 to 83. The bracket 70 includes a support part 71 and a fixed part 72.

  The support portion 71 is formed by integrally connecting the first plate 71a, the second plate 71b, and the third plate 71c, and supports the motion control device 13 of the vehicle.

  The first plate 71a is disposed in parallel to face the motor mounting surface 23a. A first support elastic member 81 is fitted to the first plate 71a. The first support elastic member 81 is screwed to the motor mounting surface 23 a by a fastening bolt 91 that penetrates the first support elastic member 81. As a result, the motor mounting surface 23 a is supported by the first plate 71 a via the first support elastic member 81. At this time, the support direction of the first support elastic member 81 is an axial direction of the first support elastic member 81, that is, a direction perpendicular to the motor mounting surface 23a, and a direction parallel to the X-axis direction (see FIGS. 2 and 3). It is. The X axis, the Y axis, and the Z axis are three coordinate axes of a three-dimensional coordinate system that is an orthogonal coordinate system. The X-axis direction is the left-right direction in FIG. 2, the Y-axis direction is the up-down direction in FIG. 2, and the Z-axis direction is the direction perpendicular to the paper surface in FIG.

  The second plate 71b is disposed in parallel to face the surface 23d opposite to the port forming surface 23c. A second support elastic member 82 is fitted to the second plate 71b. The second support elastic member 82 is screwed to the surface 23 d by a fastening bolt 92 that passes through the second support elastic member 82. Thus, the surface 23d is supported by the second plate 71b via the second support elastic member 82. At this time, the support direction of the second support elastic member 82 is a direction perpendicular to the axial direction of the second support elastic member 82, that is, the surface 23d, and is parallel to the Y-axis direction (see FIGS. 2 and 4). .

  The third plate 71c is disposed in parallel to face the surface 23f opposite to the connector surface 23e. A third support elastic member 83 is fitted to the third plate 71c. The third support elastic member 83 is screwed to the surface 23 f by a fastening bolt 93 that penetrates the third support elastic member 83. Accordingly, the surface 23f is supported by the third plate 71c via the third support elastic member 83. At this time, the support direction of the third support elastic member 83 is a direction perpendicular to the axial direction of the third support elastic member 83, that is, the surface 23f, and is parallel to the Z-axis direction (see FIGS. 3 and 4). .

  Further, the support portions A1 to A3 of the vehicle motion control device 13 by the support elastic members 81 to 83 described above are the three surfaces 23a of the surfaces 23a, 23d, and 23f supported by the support elastic members 81 to 83, respectively. , 23d, and 23f, a portion that is separated from the vertex angle P10 by the distance between the vertex angle P10 and the center of each of the surfaces 23a, 23d, and 23f, and a portion that is apart from each other by a predetermined distance or more. desirable. In addition, the said predetermined distance is set to the half value of the distance between each support location when support location A1-A3 is set to the opposite angle | corner part in each surface of apex angle P10, for example.

  As shown in FIG. 4, the support location A <b> 1 is provided on the peripheral portion of the side that is the surface 23 a and faces the apex angle P <b> 10. As can be understood from FIGS. 2 and 4, the support location A <b> 2 is provided on the peripheral portion of the side that is the surface 23 d and faces the apex angle P <b> 10. As shown in FIG. 2, the support location A3 is provided on the peripheral edge of the side that is the surface 23f and faces the apex angle P10.

  Moreover, each support elastic member 81-83 mentioned above is supporting the motion control apparatus 13 of the vehicle in the state compressed in the support direction. The first supporting elastic member 81 will be described in detail as an example. As shown in FIG. 5, the first support elastic member 81 is formed of an elastic material (for example, a rubber material) in a cylindrical shape. The first support elastic member 81 has a through hole 81a at the center in the axial direction, and an annular groove 81b at the center in the axial direction of the outer peripheral wall surface. The through-hole 81a is configured such that the cylindrical portion 85a of the first metal fitting 85 is inserted therein, and the fastening bolt 91 passes through the cylindrical portion 85a. The annular groove 81b is fitted into the notch or the peripheral edge of the hole of the first plate 71a, and the first part 81c and the second part 81d separated by the annular groove 81b are the first parts. The notch part of 1 plate 71a or the peripheral part of a hole part is clamped.

  The 1st metal fitting 85 is comprised from the flange 85b connected to the cylinder part 85a and the end of the cylinder part 85a. The cylindrical portion 85a of the first metal fitting 85 is inserted from the second portion 81d side so that the flange 85b contacts the surface 23a of the vehicle operation control device 13. A washer 86 is disposed on the opposite side of the first metal fitting 85. The first support elastic member 81 is coupled by screwing the fastening bolt 91 into the screw hole of the motor mounting surface 23a in a state of being sandwiched between the first and second metal fittings 85 and 86. The fastening bolt 91 is screwed perpendicularly to the motor mounting surface 23a so that the axial direction of the first support elastic member 81 is perpendicular to the motor mounting surface 23a.

  Note that the overall length of the cylindrical portion 85 a is set to be shorter than the length of the first support elastic member 81 in the axial direction. When the fastening bolt 91 is screwed, the first support elastic member 81 is compressed in the axial direction so that the axial rigidity becomes a specified value.

  Furthermore, it is desirable that the notch direction for attaching and inserting the support members 81 to 83 to the support portion 71 is disposed on the opposite side to the apex angle P10. For example, as shown in FIG. 3, the notch 103 is disposed on the upper side (vertical upper side in the drawing) of the support member 83 opposite to the apex angle P <b> 10. By making the support members 81 and 82 the same, it is possible to minimize the decrease in rigidity in the notch direction.

  The fixing portion 72 is for fixing the support portion 71 to the vehicle body B. As shown mainly in FIG. 3, the fixing portion 72 is provided on the center of gravity side of the vehicle motion control device 13 with respect to one plane including all the supporting points A <b> 1 to A <b> 3 by the supporting elastic members 81 to 83. The first fixed portion 72a connected to the front right side of the first and the second fixed portion 72a provided on the opposite side of the center of gravity of the vehicle motion control device 13 with respect to one plane and connected to the rear left side of the support portion 71. The fixing portion 72b includes a third fixing portion 72c connected to the front left side portion of the support portion 71, and a fourth fixing portion 72d connected to the rear right side portion of the support portion 71. Base portions of the first to fourth fixing portions 72a to 72d are coupled to the vehicle body B by fastening bolts, for example.

  In addition, it is desirable that the fixing portion 72 includes three or more fixing portions including at least the first fixing portion 72a and the second fixing portion 72b.

  As is apparent from the above description, in the present embodiment, the vehicle motion control device 13 provided with the vehicle behavior sensor 60 for detecting the behavior of the vehicle is provided with at least three or more support elastic members 81 to 83. And is supported by a bracket 70 fixed to the vehicle body B. At this time, the supporting directions of the supporting elastic members 81 to 83 are three directions parallel to the three coordinate axes of the three-dimensional coordinate system. Accordingly, the support direction of the vehicle motion control device 13 is not one direction as in the prior art, but three different directions, so that the input vibration attenuation characteristics and vibration transmission suppression characteristics are well balanced against vibrations in various directions. Can be obtained. Accordingly, the vehicle motion control device accurately detects the vehicle behavior.

  Further, since the three-dimensional coordinate system is an orthogonal coordinate system, it is possible to obtain input vibration attenuation characteristics and vibration transmission suppression characteristics that are more balanced against vibrations in various directions.

  In addition, since the support elastic members 81 to 83 support the motion control device 13 of the vehicle in a state compressed in the support direction, input vibration having a good balance with respect to vibrations in various directions while maintaining high support rigidity. Damping characteristics and vibration transmission suppression characteristics can be obtained.

  Each of the support directions is a direction perpendicular to three mutually different and adjacent surfaces of the vehicle motion control device 13, and each of the support elastic members 81 to 83 supports at least three surfaces. It is possible to obtain input vibration damping characteristics and vibration transmission suppression characteristics that are well-balanced with respect to vibrations in various directions while saving space.

  Further, the support portions A1 to A3 of the vehicle motion control device 13 by the support elastic members 81 to 83 are three surfaces 23a, 23d, and 23f in the surfaces 23a, 23d, and 23f supported by the support elastic members 81 to 83, respectively. The support elastic member 81 is a portion that is separated from the apex angle P10 formed by the distance between the apex angle P10 and the center of each of the surfaces 23a, 23d, and 23f by more than a predetermined distance. The distance between the support parts by -83 can be made as long as possible. That is, the end portion of the vehicle motion control device 13 can be supported as much as possible. Therefore, it is possible to suppress as much as possible swinging motion (for example, rotational vibration due to torque fluctuation of the pump motor) associated with the operation of the hydraulic device mounted on itself.

  The hydraulic unit 21 includes a substantially hexahedron-shaped main body 23. The main body 23 is opposite to the motor mounting surface 23a and a motor mounting surface 23a to which a motor 33 for driving a pump 32 that is a hydraulic device is mounted. Control unit mounting surface 23b to which the control unit 22 is mounted, a port forming surface 23c in which ports P3 to P6 for communicating with each wheel cylinder WC are formed, and the opposite side of the port forming surface 23c 23d, a connector surface 23e mated with the connector forming surface 22e of the control unit 22 on which the connector 22g is formed, and a surface 23f on the opposite side of the connector surface 23e. The three surfaces are the motor mounting surface 23a, A surface 23d opposite to the port forming surface 23c and a surface 23f opposite to the connector surface 23e Runode can be mounted in the assembly with good and compact motion control apparatus 13 of the vehicle body B.

  The control unit 22 accommodates the control board 50, and the vehicle behavior sensor 60 is on the control board 50, and the support elastic member closest to the control board 50 among the support elastic members 81 to 83 is supported by other support elasticity. By being arranged closer to the member, the vehicle motion control device 13 can more accurately detect the vehicle behavior.

  Further, when there are three supporting elastic members, the fixing portion 72 of the bracket 70 fixed to the vehicle body has a vehicle plane with respect to one plane including all the supporting points A1 to A3 by the supporting elastic members 81 to 83. From the 1st fixing | fixed part 72a provided in the gravity center G side of the motion control apparatus 13, and the 2nd fixing | fixed part 72b provided in the opposite side to the gravity center G of the vehicle motion control apparatus 13 with respect to one plane. At least composed. Thus, when the vehicle motion control device 13 vibrates relatively with respect to the bracket 70 across a plane including all support points by the support elastic member, the bracket 70 supporting the vehicle motion control device 13 is supported. Is fixed to the vehicle body by the first and second fixing portions 72a and 72b, and the bracket 70 is prevented from relatively vibrating with respect to the vehicle body B across the one plane. As a whole, it is possible to obtain a balanced input vibration damping characteristic and vibration transmission suppression characteristic with respect to vibrations in various directions.

  In the above-described embodiment, the vehicle motion control device 13 is supported by three support elastic members. However, the vehicle motion control device 13 may be supported by four or more support elastic members. Good. At this time, it is desirable that the support directions of at least three of the support elastic members are three directions parallel to the three coordinate axes of the three-dimensional coordinate system.

  In each of the above-described embodiments, X piping may be provided for the FF vehicle or front and rear piping may be provided for the FR vehicle. In the above-described embodiment, a vacuum booster may be used as the booster, or a booster that accumulates the hydraulic pressure generated by the pump in an accumulator and boosts the hydraulic pressure using the hydraulic pressure may be used. Further, the present invention may be applied to a brake-by-wire hydraulic brake device.

1 is a schematic diagram showing an embodiment of a support structure for a vehicle motion control apparatus according to the present invention. It is a front view which shows the motion control apparatus of the vehicle supported by the vehicle body via the bracket. It is a top view which shows the movement control apparatus of the vehicle supported by the vehicle body via the bracket. It is a side view which shows the movement control apparatus of the vehicle supported by the vehicle body via the bracket. It is a figure which shows the support state by a support elastic member.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Hydraulic brake device, 11 ... Brake pedal, 12 ... Master cylinder, 13 ... Vehicle motion control device, 14 ... Reservoir tank, 21 ... Hydraulic unit, 22 ... Control unit, 23 ... Main body, 23a ... Motor mounting surface , 23b ... control unit mounting surface, 23c ... port forming surface, 23d ... surface opposite to the port forming surface, 23e ... connector surface, 23f ... surface opposite to the connector surface, 31 ... solenoid valve (hydraulic device), 32 ... Pump (hydraulic device), 33 ... Motor (hydraulic device), 40 ... Casing, 50 ... Control board, 60 ... Vehicle behavior sensor, 61 ... Yaw rate sensor, 62 ... Acceleration sensor, 70 ... Bracket, 71 ... Support 72, fixed portion, 72a, first fixed portion, 72b, second fixed portion, 81-83, supporting elastic member, B, vehicle body, M, vehicle, W, wheel, WC Wheel cylinder.

Claims (7)

A hydraulic unit (21) equipped with a plurality of hydraulic devices (31, 32, 33) for individually controlling the hydraulic pressure applied to each wheel cylinder (WC) of the vehicle (M); A vehicle motion control device (13) in which a vehicle behavior sensor (60, 61, 62) for detecting a behavior is provided and a control unit (22) for controlling the hydraulic unit is integrated. A support structure for a vehicle motion control device that supports a bracket (70) fixed to the vehicle body (B) of the vehicle via at least three support elastic members (81-83),
Wherein each support direction of the at least three ones of the elastic support members, Ri three directions der is parallel to the three coordinate axes of a three-dimensional coordinate system,
Each of the support directions is a direction different from and adjacent to three adjacent surfaces (23a, 23d, 23f) of the vehicle motion control device, and each of the support elastic members supports at least the three surfaces,
The support location of the vehicle motion control device by each support elastic member is such that each of the surfaces supported by the support elastic member has a vertex angle (P10) formed by the three surfaces, and the apex angle and the respective surfaces. the support structure of the vehicle motion control apparatus according to claim Oh Rukoto a distance above a portion away from the center and in a portion which is spaced relation from each other more than a predetermined distance.   2. The support structure for a vehicle motion control device according to claim 1, wherein the three-dimensional coordinate system is an orthogonal coordinate system.   3. The support structure for a vehicle motion control device according to claim 1, wherein the support elastic member supports the motion control device for the vehicle in a state compressed in the support direction. The hydraulic unit according to any one of claims 1 to 3 , wherein the hydraulic unit includes a substantially hexahedral main body (23), and the main body drives a pump (32) which is the hydraulic device. In order to communicate with each wheel cylinder, a motor mounting surface (23a) to which the motor (33) is mounted, a control unit mounting surface (23b) on the opposite side of the motor mounting surface to which the control unit is mounted, and A port forming surface (23c) in which a port is formed, a surface (23d) opposite to the port forming surface, a connector surface (23e) to be combined with a connector forming surface of the control unit in which a connector is formed, And a surface (23f) opposite to the connector surface,
3. The vehicle motion control device support structure according to claim 3, wherein the three surfaces are a surface of the motor mounting surface, a surface opposite to the port forming surface, and a surface opposite to the connector surface. 5. The control unit according to claim 1 , wherein the control unit accommodates a control board (50), the vehicle behavior sensor is on the control board, and the control board includes the support elastic member. A support structure for a vehicle motion control device, wherein the support elastic member is disposed closer to the nearest support elastic member than other support elastic members. In any one of Claims 1 thru | or 5 , When the said support elastic member is three, the fixing | fixed part (72) of the said bracket fixed to the said vehicle body is all the said support elastic members. A first fixing portion (72a) provided on the center of gravity (G) side of the vehicle motion control device with respect to one plane including a support point; and a center of gravity of the vehicle motion control device with respect to the one plane. A support structure for a vehicle motion control device, comprising: a second fixing portion (72b) provided on the opposite side. 7. The support structure for a vehicle motion control device according to claim 6, wherein the first fixing portion and the second fixing portion are coupled to the vehicle body at different positions in the vertical direction.

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