Hydraulic control unit and straddle type vehicle

Abstract

The invention provides a hydraulic control unit for a straddle-type vehicle, wherein the storage of a control substrate in a housing is easier than that of a conventional hydraulic control unit. A hydraulic pressure control unit according to the present invention is provided with: a base body in which a flow path for brake fluid is formed; a control board to which at least a part of components constituting a brake control device for controlling a hydraulic pressure adjustment valve for opening and closing the flow path are mounted; a housing for housing the control board; and a connector electrically connected to the control board. When viewed from a line-of-sight direction which is parallel to the arrangement direction of the base body and the housing and in which the base body and the housing are arranged in this order, the connector is provided in a region of the housing that protrudes outward of the base body in a first direction of one of four directions extending in the vertical and horizontal directions. The housing also protrudes toward the outside of the base body in a second direction, which is different from the first direction, of one of the four directions.

Description

Technical Field

[0001] The present invention relates to a hydraulic control unit for a straddle-type vehicle and a straddle-type vehicle including the hydraulic control unit. Background Art

[0002] Among existing vehicles, there are vehicles equipped with a hydraulic control unit that controls the pressure of brake fluid in a hydraulic circuit filled with brake fluid. The hydraulic control unit increases or decreases the pressure of brake fluid in the hydraulic circuit to adjust the braking force generated on the wheels and perform anti-lock braking control when a vehicle passenger operates an input portion such as a brake lever. Such a hydraulic control unit is a unit in which a flow path that constitutes a part of the hydraulic circuit and a valve that opens and closes the flow path are unitized (for example, see Patent Document 1).

[0003] Specifically, the conventional hydraulic control unit includes: a base body on which a flow path of brake fluid is formed, and a hydraulic pressure regulating valve for opening and closing the flow path of brake fluid. In addition, the conventional hydraulic control unit includes: a control substrate on which at least a part of the components constituting the brake control device for controlling the hydraulic pressure regulating valve is mounted, and a housing for accommodating the control substrate and connected to the base body. In addition, the conventional hydraulic control unit is provided with a connector electrically connected to the control substrate on the housing.

[0004] In addition, the conventional hydraulic control unit is manufactured based on the following concept. First, in explaining the concept, the sight line direction is defined as follows. The direction parallel to the arrangement direction of the base and the housing, and the base and the housing are arranged in this order, is defined as the sight line direction. When the sight line direction is defined in this way and the conventional hydraulic control unit is observed in the sight line direction, only the area of ​​the housing of the conventional hydraulic control unit where the connector is provided protrudes outside the base.

[0005] Patent Document 1: Japanese Patent Application Publication No. 2009-107473.

[0006] In the past, a hydraulic control unit mounted on a straddle-type vehicle, which is a type of vehicle, was required to be lightweight. Therefore, in recent years, the size of the base of the hydraulic control unit mounted on the straddle-type vehicle has become smaller and smaller. Here, the existing hydraulic control unit mounted on the straddle-type vehicle is manufactured based on the aforementioned concept. That is, the housing of the existing hydraulic control unit mounted on the straddle-type vehicle has only the area where the connector is provided protruding to the outside of the base when viewed from the line of sight. Therefore, the existing hydraulic control unit mounted on the straddle-type vehicle has a problem of difficulty in accommodating the control substrate in the housing as the base is miniaturized. Summary of the invention

[0007] The present invention is proposed against the background of the above problems, and the first object is to obtain a hydraulic control unit for a straddle-type vehicle, which is easier to accommodate a control substrate in a housing than a conventional hydraulic control unit. In addition, the second object of the present invention is to obtain a straddle-type vehicle having the hydraulic control unit as described above.

[0008] The hydraulic control unit of the present invention is a hydraulic control unit mounted on a braking system of a straddle-type vehicle, comprising: a substrate forming a flow path for brake fluid, a hydraulic regulating valve for opening and closing the aforementioned flow path, a control substrate on which at least a part of the components of a brake control device for controlling the aforementioned hydraulic regulating valve is installed, a housing for accommodating the aforementioned control substrate and connected to the aforementioned substrate, and a connector arranged on the aforementioned housing and electrically connected to the aforementioned control substrate; when observed from a line of sight, the aforementioned connector is arranged in an area of ​​the aforementioned housing that protrudes outwardly from the aforementioned substrate in a first direction, the line of sight being a direction parallel to an arrangement direction of the aforementioned substrate and the aforementioned housing, and the substrate and the housing being arranged in this order, the first direction being one of four directions extending upward, downward, leftward, rightward, and leftward from the center of the aforementioned substrate, and the aforementioned housing also protruding outwardly from the aforementioned substrate in a second direction that is one of the aforementioned four directions and is different from the aforementioned first direction.

[0009] Furthermore, the straddle-type vehicle of the present invention includes the hydraulic control unit of the present invention.

[0010] Effects of the Invention

[0011] When the hydraulic control unit of the present invention is observed along the aforementioned line of sight, the housing of the hydraulic control unit of the present invention has a portion that does not protrude from the base in the housing of the conventional hydraulic control unit protruding from the base. Therefore, when comparing hydraulic control units having bases of the same size, the housing space for the control substrate of the hydraulic control unit of the present invention is larger than that of the conventional hydraulic control unit. Therefore, the housing of the control substrate of the hydraulic control unit of the present invention is easier to accommodate than that of the conventional hydraulic control unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a diagram showing the structure of a straddle-type vehicle equipped with a brake system including a hydraulic control unit according to an embodiment of the present invention.

[0013] Figure 2 It is a diagram showing the structure of a brake system including a hydraulic control unit according to an embodiment of the present invention.

[0014] Figure 3 It is a perspective view of a hydraulic control unit according to an embodiment of the present invention.

[0015] Figure 4 For Figure 3A stereoscopic view of the hydraulic control unit of the present invention observed in the direction of arrow A.

[0016] Figure 5 For Figure 3 The hydraulic control unit of the present invention is viewed in the direction of arrow B.

[0017] Figure 6 For Figure 5 The diagram of the hydraulic control unit of the present invention is observed in the direction of arrow C, with a portion thereof being a cross-sectional diagram.

[0018] Figure 7 It is a block diagram showing a modified example of the hydraulic control unit according to the embodiment of the present invention.

[0019] Figure 8 It is a diagram showing a modified example of the hydraulic control unit according to the embodiment of the present invention.

[0020] Fig. 9 It is a diagram showing a modified example of the hydraulic control unit according to the embodiment of the present invention. DETAILED DESCRIPTION

[0021] Hereinafter, a hydraulic control unit and a straddle-type vehicle according to the present invention will be described with reference to the drawings.

[0022] In addition, the following description is directed to the case where the present invention is used for an automatic two-wheeled vehicle, but the present invention can also be used for other straddle-type vehicles other than automatic two-wheeled vehicles. Other straddle-type vehicles other than automatic two-wheeled vehicles are, for example, automatic three-wheeled vehicles and buggies that use at least one of an engine and an electric motor as a driving source. In addition, other straddle-type vehicles other than automatic two-wheeled vehicles are, for example, bicycles. Bicycles refer to all vehicles that can be propelled on the road by the pedal force applied to the pedals. That is, bicycles include ordinary bicycles, electric-assisted bicycles, electric bicycles, etc. In addition, automatic two-wheeled vehicles or automatic three-wheeled vehicles refer to so-called motorcycles, and motorcycles include motorcycles, scooters, electric scooters, etc.

[0023] In addition, the structure, operation, etc. described below are examples, and the hydraulic control unit and the straddle-type vehicle of the present invention are not limited to such structures, operations, etc. For example, although the following description is for a case where the hydraulic control unit has two systems of hydraulic circuits, the number of hydraulic circuits of the hydraulic control unit is not limited to two systems. The hydraulic control unit may have only one system of hydraulic circuits, or may have three or more systems of hydraulic circuits.

[0024] In addition, in each figure, the same or similar components or parts are marked with the same reference numerals, or the reference numerals are omitted. In addition, the illustration of small structures is appropriately simplified or omitted. In addition, repeated descriptions are appropriately simplified or omitted.

[0025] Implementation method.

[0026] 〈Structure and operation of the brake system for straddle-type vehicles〉

[0027] The structure and operation of the brake system according to the present embodiment will be described.

[0028] Figure 1 It is a diagram showing the structure of a straddle-type vehicle equipped with a brake system including a hydraulic control unit according to an embodiment of the present invention. Figure 2 It is a diagram showing the structure of a brake system including a hydraulic control unit according to an embodiment of the present invention.

[0029] like Figure 1 and Figure 2 As shown, the brake system 10 is mounted on a straddle-type vehicle 100. The straddle-type vehicle 100 is, for example, a two-wheeled motor vehicle using an engine 5 as a driving source. The straddle-type vehicle 100 includes a body 1, a handle 2 rotatably held on the body 1, a front wheel 3 rotatably held on the body 1 together with the handle 2, and a rear wheel 4 rotatably held on the body 1.

[0030] The brake system 10 includes a brake lever 11, a first hydraulic circuit 12 filled with brake fluid, a brake pedal 13, and a second hydraulic circuit 14 filled with brake fluid. The brake lever 11 is provided on the handle 2 and is operated by the user's hand. The first hydraulic circuit 12 generates a braking force corresponding to the amount of operation of the brake lever 11 on the rotor 3a rotating together with the front wheel 3. The brake pedal 13 is provided at the lower part of the body 1 and is operated by the user's foot. The second hydraulic circuit 14 generates a braking force corresponding to the amount of operation of the brake pedal 13 on the rotor 4a rotating together with the rear wheel 4.

[0031] In addition, the brake lever 11 and the brake pedal 13 are examples of a brake input unit. For example, a brake pedal other than the brake pedal 13 provided on the main body 1 may be used as a brake input unit instead of the brake lever 11. In addition, for example, a brake lever other than the brake lever 11 provided on the handle 2 may be used as a brake input unit instead of the brake pedal 13. In addition, the first hydraulic circuit 12 may also generate a braking force corresponding to the amount of operation of the brake lever 11 or the amount of operation of the brake pedal other than the brake pedal 13 provided on the main body 1 to the rotor 4a rotating together with the rear wheel 4. In addition, the second hydraulic circuit 14 may also generate a braking force corresponding to the amount of operation of the brake pedal 13 or the amount of operation of the brake lever other than the brake lever 11 provided on the handle 2 to the rotor 3a rotating together with the front wheel 3.

[0032] The first hydraulic circuit 12 and the second hydraulic circuit 14 have the same structure. Therefore, the structure of the first hydraulic circuit 12 will be described below as a representative.

[0033] The first hydraulic circuit 12 includes a master cylinder 21 having a built-in piston (not shown), a reservoir 22 attached to the master cylinder 21 , a brake caliper 23 having brake pads (not shown), and a wheel cylinder 24 for actuating the brake pads (not shown) of the brake caliper 23 .

[0034] A flow path of brake fluid is formed in a base 70 of a hydraulic control unit 60 provided in the first hydraulic circuit 12. In the present embodiment, a main flow path 25, a secondary flow path 26, and a pressure-increasing flow path 27 are formed in the base 70 as flow paths of brake fluid. In the first hydraulic circuit 12, the master cylinder 21 and the wheel cylinder 24 are connected via a fluid pipe 38 connected between the master cylinder 21 and a master cylinder port MP formed in the base 70, a main flow path 25 formed in the base 70, and a fluid pipe 39 connected between the wheel cylinder 24 and a wheel cylinder port WP formed in the base 70. In addition, the brake fluid of the wheel cylinder 24 is discharged to the middle part of the main flow path 25, that is, the middle part of the main flow path 25a, through the secondary flow path 26. In addition, the brake fluid of the master cylinder 21 is supplied to the middle part of the secondary flow path 26, that is, the middle part of the secondary flow path 26a, through the pressure-increasing flow path 27.

[0035] A filling valve 28 is provided in the main flow path 25 in a region closer to the wheel cylinder 24 than the main flow path midway portion 25a. By opening and closing the filling valve 28, the flow path portion of the main flow path 25 where the filling valve 28 is provided is opened and closed, and the flow rate of the brake fluid flowing through this region is controlled. A release valve 29 and a reservoir 30 for storing brake fluid are provided in the region closer to the upstream side than the secondary flow path midway portion 26a in the secondary flow path 26 in this order from the upstream side. By opening and closing the release valve 29, the flow path portion of the secondary flow path 26 where the release valve 29 is provided is opened and closed, and the flow rate of the brake fluid flowing through this region is controlled. In addition, a pump 31 for applying pressure to the brake fluid in the secondary flow path 26 is provided in a region closer to the downstream side than the secondary flow path midway portion 26a in the secondary flow path 26. A switching valve 32 is provided in a region closer to the master cylinder 21 than the primary flow path midway portion 25a in the main flow path 25. By the opening and closing action of the switching valve 32, the flow path portion of the main flow path 25 where the switching valve 32 is set is opened and closed, and the flow rate of the brake fluid flowing through this area is controlled. A boosting valve 33 is provided in the boosting flow path 27. By the opening and closing action of the boosting valve 33, the flow path portion of the boosting flow path 27 where the boosting valve 33 is set is opened and closed, and the flow rate of the brake fluid flowing through the boosting flow path 27 is controlled.

[0036] Note that, hereinafter, the filling valve 28 , the release valve 29 , the switching valve 32 , and the pressure-increasing valve 33 that open and close the flow path of the brake fluid formed in the base 70 are collectively referred to as the fluid pressure regulating valve 36 without distinction.

[0037] In addition, a master cylinder hydraulic pressure sensor 34 for detecting the hydraulic pressure of the brake fluid in the master cylinder 21 is provided in a region of the main flow path 25 that is closer to the master cylinder 21 than the switching valve 32. In addition, a wheel cylinder hydraulic pressure sensor 35 for detecting the hydraulic pressure of the brake fluid in the wheel cylinder 24 is provided in a region of the main flow path 25 that is closer to the wheel cylinder 24 than the filling valve 28.

[0038] That is, the main flow path 25 communicates the master cylinder port MP and the wheel cylinder port WP via the filling valve 28. In addition, the secondary flow path 26 is a flow path defined as a part or all of the flow path for releasing the brake fluid of the wheel cylinder 24 to the master cylinder 21 via the release valve 29. In addition, the booster flow path 27 is a part or all of the flow path defined as a flow path for supplying the brake fluid of the master cylinder 21 via the booster valve 33 to the upstream side of the pump 31 in the secondary flow path 26.

[0039] The filling valve 28 is, for example, an electromagnetic valve that switches the flow of the brake fluid at its setting position from open to closed when changing from a non-energized state to an energized state. The release valve 29 is, for example, an electromagnetic valve that switches the flow of the brake fluid toward the auxiliary flow path midway portion 26a through its setting position from closed to open when changing from a non-energized state to an energized state. The switching valve 32 is, for example, an electromagnetic valve that switches the flow of the brake fluid at its setting position from open to closed when changing from a non-energized state to an energized state. The boosting valve 33 is, for example, an electromagnetic valve that switches the flow of the brake fluid toward the auxiliary flow path midway portion 26a through its setting position from closed to open when changing from a non-energized state to an energized state.

[0040] The pump 31 of the first hydraulic circuit 12 and the pump 31 of the second hydraulic circuit 14 are driven by a common motor 40. That is, the motor 40 is a driving source of the pump 31.

[0041] The hydraulic control unit 60 is formed by means of a base 70, various components arranged on the base 70 (filling valve 28, release valve 29, reservoir 30, pump 31, switching valve 32, boosting valve 33, master cylinder hydraulic sensor 34, wheel cylinder hydraulic sensor 35, motor 40, etc.), and a brake control device (brake ECU) 50.

[0042] The brake control device 50 controls the hydraulic regulating valve 36. The brake control device 50 may be one or may be divided into a plurality of devices. The brake control device 50 may be mounted on the base 70 or may be mounted on other components other than the base 70. A part or all of the brake control device 50 may be composed of, for example, a microcomputer, a microprocessor unit, etc., or may be composed of updateable elements such as firmware, or may be a program module executed according to instructions from a CPU (Central Processing Unit) or the like. In addition, in the hydraulic control unit 60 of the present embodiment, at least a part of the components of the brake control device 50 is mounted on a control substrate 51 described later.

[0043] For example, in a normal state, the filling valve 28, the release valve 29, the switching valve 32, and the pressure-increasing valve 33 are controlled to be in a non-energized state by the brake control device 50. In this state, when the brake lever 11 is operated, the piston (not shown) of the master cylinder 21 is pushed in the first hydraulic circuit 12, the hydraulic pressure of the brake fluid in the wheel cylinder 24 is increased, and the brake pad (not shown) of the brake caliper 23 is pressed against the rotor 3a of the front wheel 3, and the front wheel 3 is braked. In addition, when the brake pedal 13 is operated, the piston (not shown) of the master cylinder 21 is pushed in the second hydraulic circuit 14, the hydraulic pressure of the brake fluid in the wheel cylinder 24 is increased, and the brake pad (not shown) of the brake caliper 23 is pressed against the rotor 4a of the rear wheel 4, and the rear wheel 4 is braked.

[0044] The outputs of various sensors (master cylinder hydraulic pressure sensor 24, wheel cylinder hydraulic pressure sensor 35, wheel speed sensor, acceleration sensor, etc.) are input to the brake control device 50. Based on these outputs, the brake control device 50 outputs instructions for controlling the operation of the motor 40 and the hydraulic pressure regulating valve 36, and performs pressure reduction control operation, pressure increase control operation, etc.

[0045] For example, when the hydraulic pressure of the brake fluid in the wheel cylinder 24 of the first hydraulic circuit 12 is excessive or likely to be excessive, the brake control device 50 performs an operation to reduce the hydraulic pressure of the brake fluid in the wheel cylinder 24 of the first hydraulic circuit 12. At this time, the brake control device 50 controls the filling valve 28 to be energized, the release valve 29 to be energized, the switching valve 32 to be non-energized, and the pressure-increasing valve 33 to be non-energized in the first hydraulic circuit 12, and drives the motor 40. In addition, when the hydraulic pressure of the brake fluid in the wheel cylinder 24 of the second hydraulic circuit 14 is excessive or likely to be excessive, the brake control device 50 performs an operation to reduce the hydraulic pressure of the brake fluid in the wheel cylinder 24 of the second hydraulic circuit 14. At this time, the brake control device 50 controls the filling valve 28 to be energized, the release valve 29 to be energized, the switching valve 32 to be non-energized, and the pressure-increasing valve 33 to be non-energized in the second hydraulic circuit 14, and drives the motor 40.

[0046] In addition, for example, when the hydraulic pressure of the brake fluid in the wheel cylinder 24 of the first hydraulic circuit 12 is insufficient or may be insufficient, the brake control device 50 performs an operation to increase the hydraulic pressure of the brake fluid in the wheel cylinder 24 of the first hydraulic circuit 12. At this time, the brake control device 50 controls the filling valve 28 to a non-energized state, controls the release valve 29 to a non-energized state, controls the switching valve 32 to an energized state, and controls the pressure increasing valve 33 to an energized state in the first hydraulic circuit 12, and drives the motor 40. In addition, when the hydraulic pressure of the brake fluid in the wheel cylinder 24 of the second hydraulic circuit 14 is insufficient or may be insufficient, the brake control device 50 performs an operation to increase the hydraulic pressure of the brake fluid in the wheel cylinder 24 of the second hydraulic circuit 14. At this time, the brake control device 50 controls the filling valve 28 to a non-energized state, controls the release valve 29 to a non-energized state, controls the switching valve 32 to an energized state, and controls the pressure increasing valve 33 to an energized state in the second hydraulic circuit 14, and drives the motor 40.

[0047] That is, the hydraulic control unit 60 can control the hydraulic pressure of the brake fluid in the wheel cylinder 24 of the first hydraulic circuit 12 to perform the anti-lock braking action of the first hydraulic circuit 12. In addition, the hydraulic control unit 60 can control the hydraulic pressure of the brake fluid in the wheel cylinder 24 of the second hydraulic circuit 14 to perform the anti-lock braking action of the second hydraulic circuit 14. In addition, the hydraulic control unit 60 can control the hydraulic pressure of the brake fluid in the wheel cylinder 24 of the first hydraulic circuit 12 to perform the automatic pressurizing action of the first hydraulic circuit 12. In addition, the hydraulic control unit 60 can control the hydraulic pressure of the brake fluid in the wheel cylinder 24 of the second hydraulic circuit 14 to perform the automatic pressurizing action of the second hydraulic circuit 14.

[0048] 〈Structure of hydraulic control unit〉

[0049] The hydraulic control unit 60 is unitized with a base body 70, a hydraulic pressure regulating valve 36, and a control substrate 51. In addition, in the present embodiment, each component (the motor 40, the master cylinder hydraulic pressure sensor 34, the wheel cylinder hydraulic pressure sensor 35, etc.) other than the hydraulic pressure regulating valve 36 provided on the base body 70 is also unitized together with the base body 70 and the control substrate 51. The structure of the unitized portion of the hydraulic control unit 60 will be described below.

[0050] Figure 3 It is a perspective view of a hydraulic control unit according to an embodiment of the present invention. Figure 4 For Figure 3 A stereoscopic view of the hydraulic control unit of the present invention observed in the direction of arrow A. Figure 5 For Figure 3 The hydraulic control unit of the present invention is viewed in the direction of arrow B. Figure 6 For Figure 5The figure is a diagram of the hydraulic control unit of the present invention as viewed in the direction of arrow C, with a portion thereof being a cross-sectional view.

[0051] The base 70 is formed of a metal such as an aluminum alloy, and has a substantially rectangular parallelepiped shape, for example. In addition, each side surface of the base 70 may be flat, may include a curved portion, and may include a step.

[0052] like Figure 6 As shown, the motor 40 is provided on the side surface 71 of the base 70. In addition, the fixing structure of the motor 40 to the base 70 is not particularly limited. For example, the motor 40 can be fixed to the base 70 by bolts. In addition, for example, the motor 40 can also be fixed to the base 70 by so-called riveting.

[0053] An eccentric body 42 is mounted on the output shaft 41 of the motor 40 so as to rotate together with the output shaft 41 of the motor 40. When the eccentric body 42 rotates, the plunger of the pump 34 pressed against the outer peripheral surface of the eccentric body 42 reciprocates, so that the brake fluid is transported from the suction side to the discharge side of the pump 31. The motor 40 is electrically connected to the control substrate 51, and the output shaft 41 rotates by powering the motor 40 from the control substrate 51. The structure for electrically connecting the control substrate 51 to the motor 40 is not particularly limited. Figure 6 , a structure in which the terminal 43 of the motor 40 is directly connected to the control substrate 51 is illustrated.

[0054] In addition, if Figure 6 As shown, at least one coil 37 is arranged on the side surface 71 of the base 70. The coil 37 drives the hydraulic regulating valve 36, and the hydraulic regulating valve 36 opens and closes the flow path formed in the base 70. In detail, the coil 37 is electrically connected to the control substrate 51, and the plunger of the hydraulic regulating valve 36 is moved by the magnetic force generated by the coil 37 due to the power supply from the control substrate 51, so as to open and close the flow path portion where the hydraulic regulating valve 36 is set in the flow path formed in the base 70. For example, when the hydraulic regulating valve 36 is a filling valve 28, the plunger of the filling valve 28 is moved by the power supply to the coil 37 corresponding to the filling valve 28, so that the setting position of the filling valve 28 in the main flow path 25 that is in an open state becomes a closed state. The structure for electrically connecting the control substrate 51 and the coil 37 is not particularly limited. Figure 6 , a structure in which the terminal 37 a of the coil 37 is directly connected to the control substrate 51 is illustrated.

[0055] In addition, the hydraulic control unit 60 includes a housing 80 that accommodates the control substrate 51. The housing 80 is connected to the side surface 71 of the base 70. The housing 80 is formed of, for example, a resin, and is formed in, for example, a substantially rectangular parallelepiped shape. In addition, each side surface of the housing 80 may be flat, may include a curved portion, and may include a step.

[0056] In addition, the housing 80 in the present embodiment is composed of a main body 88 and a cover 89. The main body 88 is formed in a square cylindrical shape, for example, and is connected to the side 71 of the base 70. When the main body 88 is connected to the side 71 of the base 70, the main body 88 surrounds the motor 40 and the coil 37 provided on the side 71 of the base 70. In addition, an opening is formed in the main body 88 in the area facing the control substrate 51. The cover 89 is mounted on the main body 88 to close the opening. That is, when the housing 80 is connected to the base 70, the motor 40 is arranged in a space surrounded by the base 70 and the housing 80.

[0057] Furthermore, the hydraulic control unit 60 includes a connector 58 electrically connected to the control board 51. The connector 58 is connected to a signal line, a power supply line, etc., and is provided in the housing 80. Specifically, the connector 58 is provided in the housing 80 at a position as described below.

[0058] When explaining the position of the connector 58, the visual line direction V is first defined as follows. The direction parallel to the arrangement direction of the base 70 and the housing 80, in which the base 70 and the housing 80 are arranged in this order, is defined as the visual line direction V. That is, the visual line direction V is Figure 3 The direction of the hydraulic control unit 60 when viewed from the lower side of the paper is Figure 3 The direction of arrow B is shown. Therefore, Figure 5 2 is a diagram showing the hydraulic control unit 60 viewed from the viewing direction V. Figure 5 As shown, when the hydraulic control unit 60 is viewed from the viewing direction V, a portion of the housing 80 protrudes outward from the base 70 . When the hydraulic control unit 60 is viewed from the viewing direction V, the connector 58 is disposed in a region of the housing 80 that protrudes outward from the base 70 .

[0059] In addition, the hydraulic control unit mounted on the straddle-type vehicle is required to be lightweight. Therefore, in recent years, the size of the base of the hydraulic control unit mounted on the straddle-type vehicle has become smaller and smaller. Here, when the housing of the existing hydraulic control unit mounted on the straddle-type vehicle is observed in the line of sight, only the area where the connector is provided protrudes to the outside of the base. Therefore, as the base of the existing hydraulic control unit mounted on the straddle-type vehicle is miniaturized, it becomes difficult to accommodate the control substrate in the housing. Therefore, the hydraulic control unit 60 of the present embodiment is configured as follows in order to make it easier to accommodate the control substrate 51 in the housing 80 compared with the existing hydraulic control unit.

[0060] When describing the structure of the hydraulic control unit 60 of this embodiment, Figure 5As shown in the figure, when the hydraulic control unit 60 is observed from the visual direction V, four directions extending upward, downward, leftward, and rightward from the center of the base 70 are defined as direction Xa, direction Xb, direction Xc, and direction Xd. In addition, the above four directions are directions from the center of the base 70, but if they are actually recorded at the center of the base 70, it will be difficult to observe the shape of the hydraulic control unit 60. Therefore, Figure 5 In the following figures, the above four directions are recorded at positions offset from the base 70. In addition, Figure 5 In the following figures, the upward direction on the paper is referred to as direction Xa, the left direction on the paper is referred to as direction Xb, the downward direction on the paper is referred to as direction Xc, and the right direction on the paper is referred to as direction Xd. In addition, when the hydraulic control unit 60 is observed in the visual direction V, the direction from the base 70 toward the connector 58 is matched with the direction Xa to observe the hydraulic control unit 60. In addition, the direction Xa is also referred to as the first direction D1 below. That is, when the hydraulic control unit 60 is observed in the visual direction V, the connector 58 is provided in a region of the housing 80 that protrudes outward from the base 70 in the first direction D1. In addition, in the present embodiment, when the hydraulic control unit 60 is observed in the visual direction V, the connector 58 and the base 70 are arranged along the long side direction of the base 70.

[0061] In this way, when the hydraulic control unit 60 is viewed from the visual direction V, the housing 80 of the hydraulic control unit 60 of the present embodiment also protrudes to the outside of the base 70 in the second direction D2, which is one of the four directions and is different from the first direction D1. In other words, when the hydraulic control unit 60 is viewed from the visual direction V, the side surfaces defining the outline of the housing 80 are the side surface 81, the side surface 82, the side surface 83, and the side surface 84, when the hydraulic control unit 60 is viewed from the visual direction V, with the direction Xa as the first direction D1. Among them, the side surface 81 is the side surface defining the outline of the housing 80 in the first direction D1, i.e., the direction Xa, among the four directions. The side surface 82 is the side surface defining the outline of the housing 80 in the direction Xb, which is not the first direction D1, among the four directions. The side surface 83 is the side surface defining the outline of the housing 80 in the direction Xc, which is not the first direction D1, among the four directions. The side surface 84 is the side surface defining the outline of the housing 80 in the direction Xd, which is not the first direction D1, among the four directions. When the hydraulic control unit 60 is viewed from the visual direction V, the side surface 81 of the housing 80 of the hydraulic control unit 60 of the present embodiment protrudes outward from the base 70, and at least one of the side surface 82, the side surface 83, and the side surface 84 also protrudes outward from the base 70. In addition, in the hydraulic control unit 60 of the present embodiment, the direction Xb becomes the second direction D2. In other words, in the hydraulic control unit 60 of the present embodiment, when the hydraulic control unit 60 is viewed from the visual direction V, the side surface 82 protrudes outward from the base 70. In other words, in the hydraulic control unit 60 of the present embodiment, when the hydraulic control unit 60 is viewed from the visual direction V, the side surface 82 becomes the side surface that defines the outline of the housing 80 in the second direction D2.

[0062] That is, when the hydraulic control unit 60 is viewed from the visual direction V, the housing 80 of the hydraulic control unit 60 of the present embodiment has a portion that does not protrude from the base in the housing of the conventional hydraulic control unit protruding from the base 70. In other words, when comparing hydraulic control units having bases of the same size, the housing 80 of the hydraulic control unit 60 of the present embodiment has a larger space for accommodating the control substrate 51 than the conventional hydraulic control unit. Figure 6 As shown, the hydraulic control unit 60 of this embodiment can arrange the control substrate 51 in a portion of the housing 80 that does not protrude from the base in the housing of the conventional hydraulic control unit. Therefore, the hydraulic control unit 60 of this embodiment can easily accommodate the control substrate 51 in the housing 80 compared to the conventional hydraulic control unit.

[0063] In addition, when the hydraulic control unit 60 is viewed from the visual direction V, the side surface 82 defining the outline of the housing 80 in the second direction D2 may protrude entirely to the outside of the base 70, but in the present embodiment, a portion of the side surface 82 protrudes to the outside of the base 70. Specifically, the side surface 82 of the housing 80 is connected to the base 70 at the end portion on the base 70 side. Therefore, the connection portion 82a of the side surface 82 connected to the base 70 is a region including the end portion on the base 70 side. In the present embodiment, when the hydraulic control unit 60 is viewed from the visual direction V, the side surface 82 of the housing 80 does not protrude to the outside of the base 70 at the connection portion 82a connected to the base 70.

[0064] As described above, the hydraulic control unit 60 is mounted on the straddle-type vehicle 100. At this time, the side surface 72 of the base 70 is a mounting surface mounted on the straddle-type vehicle 100. In other words, when the hydraulic control unit 60 is mounted on the straddle-type vehicle 100, the side surface 72 of the base 70 is mounted on a mounting member such as a bracket of the straddle-type vehicle 100. Figure 3 As shown, a mounting portion 90 is provided on the side 72. Specifically, in the hydraulic control unit 60 of the present embodiment, a female thread is formed on the side 72 as the mounting portion 90. However, the female thread is only an example of the mounting portion 90. The mounting portion 90 can be appropriately determined in accordance with the mounting structure of the straddle-type vehicle 100. For example, a stud can be erected on the side 72 as the mounting portion 90. In addition, Figure 3 In FIG. 7 , the structure other than the mounting portion 90 shown on the side 72 is the reservoir 30 .

[0065] Here, the side surface 72 of the base 70 is a side surface that defines the contour of the base 70 in the second direction D2, that is, the direction Xb, when the hydraulic control unit 60 is viewed in the viewing direction V. That is, in the hydraulic control unit 60 of the present embodiment, the side surface 72 that defines the contour of the base 70 in the second direction D2, when the hydraulic control unit 60 is viewed in the viewing direction V, is the mounting surface.

[0066] As described above, the master cylinder port MP and the wheel cylinder port WP are formed in the base 70. The master cylinder port MP is a port that communicates with the main flow path 25 and is connected to the fluid pipe 38 that communicates with the master cylinder 21. The wheel cylinder port WP is a port that communicates with the main flow path 25 and is connected to the fluid pipe 39 that communicates with the wheel cylinder 24. At least one of the master cylinder port MP and the wheel cylinder port WP is formed on the side surface of the base 70 as described below.

[0067] In this embodiment, of the above four directions when the hydraulic control unit 60 is observed from the sight direction V, the direction Xa is the first direction D1, and the direction Xb is the second direction D2. Therefore, when the direction other than the first direction D1 and the second direction D2 among the above four directions when the hydraulic control unit 60 is observed from the sight direction V is defined as the third direction D3, the direction Xc and the direction Xd can become the third direction D3. In this embodiment, the direction Xd is set as the third direction D3. Then, as shown in FIG. Figure 4 As shown, when the hydraulic control unit 60 is viewed from the visual direction V, at least one of the master cylinder port MP and the wheel cylinder port WP is formed on the side surface 73 defining the contour of the base 70 in the third direction D3. Specifically, in the present embodiment, both the master cylinder port MP and the wheel cylinder port WP of the first hydraulic circuit 12 and both the master cylinder port MP and the wheel cylinder port WP of the second hydraulic circuit 14 are formed on the side surface 73 of the base 70. In addition, in the present embodiment, when the hydraulic control unit 60 is viewed from the visual direction V, the housing 80 is configured not to protrude to the outside of the base 70 in the third direction D3, that is, the direction Xd.

[0068] 〈Effect of hydraulic control unit〉

[0069] The effects of the hydraulic control unit 60 of the present embodiment will be described.

[0070] The hydraulic control unit 60 is a hydraulic control unit of the brake system 10 mounted on the straddle-type vehicle 100. The hydraulic control unit 60 includes a base 70, a hydraulic adjustment valve 36, a control substrate 51, a housing 80, and a connector 58. The base 70 forms a flow path of brake fluid. The hydraulic adjustment valve 36 is a valve that opens and closes the flow path of brake fluid formed on the base 70. The control substrate 51 is a substrate on which at least a part of the components of the brake control device 50 that controls the hydraulic adjustment valve 36 is mounted. The housing 80 accommodates the control substrate 51. In addition, the housing 80 is connected to the base 70. The connector 58 is provided on the housing 80 and is electrically connected to the control substrate 51. A direction parallel to the arrangement direction of the base 70 and the housing 80, and the base 70 and the housing 80 are arranged in this order, is set as a line of sight direction V. When the hydraulic control unit 60 is observed in the sight direction V, the connector 58 is provided in a region of the housing 80 that protrudes outwardly from the base 70 in a first direction D1, which is one of four directions extending upward, downward, leftward, and rightward from the center of the base 70. In addition, when the hydraulic control unit 60 is observed in the sight direction V, the housing 80 also protrudes outwardly from the base 70 in a second direction D2 that is one of the four directions and different from the first direction D1.

[0071] In the hydraulic control unit 60 thus constructed, when viewed in the visual direction V, the housing 80 is a portion of the housing of the conventional hydraulic control unit that does not protrude from the base body, but protrudes from the base body 70. In other words, when comparing hydraulic control units having base bodies of the same size, the hydraulic control unit 60 thus constructed has a larger accommodation space for the control substrate 51, that is, the housing 80, than the conventional hydraulic control unit. Therefore, the hydraulic control unit 60 thus constructed can accommodate the control substrate 51 more easily in the housing 80 than the conventional hydraulic control unit.

[0072] The motor 40 is preferably disposed in a space surrounded by the base 70 and the housing 80 .

[0073] When the motor 40 is arranged in the space surrounded by the base 70 and the housing 80, there may be a concern that the heat generated by the motor 40 may affect the control substrate 51. However, when comparing hydraulic control units having bases of the same size, the hydraulic control unit 60 of the present embodiment can carry a control substrate 51 of a larger size than the conventional hydraulic control unit, so the heat dissipation of the control substrate 51 is improved. Therefore, even if the motor 40 is arranged in the space surrounded by the base 70 and the housing 80, the hydraulic control unit 60 of the present embodiment can suppress the heat generated by the motor 40 from affecting the control substrate 51 compared to the conventional hydraulic control unit. Therefore, the hydraulic control unit 60 of the present embodiment can easily arrange the motor 40 in the space surrounded by the base 70 and the housing 80 compared to the conventional hydraulic control unit.

[0074] It is preferred that the side surface 82 of the housing 80 that defines the outline of the housing 80 in the second direction D2 when viewed in the viewing direction V does not protrude to the outside of the base 70 at the connection portion 82 a with the base 70 .

[0075] In the hydraulic control unit 60 configured in this way, at least a portion of the portion of the housing 80 that is not the storage space for storing the control substrate 51 does not protrude from the base 70. Therefore, it is possible to reduce the amount of material used to form the housing 80. Therefore, the hydraulic control unit 60 configured in this way can be made lighter than when the entire side surface 82 protrudes to the outside of the base 70.

[0076] Preferably, the side surface 72 of the base body 70 that defines the outline of the base body 70 in the second direction D2 when viewed in the viewing direction V serves as a mounting surface to the straddle-type vehicle 100 .

[0077] In the hydraulic control unit 60 thus configured, when the hydraulic control unit 60 is mounted on a mounting member of the straddle type vehicle 100, the portion of the housing 80 that protrudes outward from the base 70 is arranged to overlap with the mounting member of the straddle type vehicle 100. Therefore, in the hydraulic control unit 60 thus configured, the mounting space of the hydraulic control unit 60 in the straddle type vehicle 100 can be reduced.

[0078] It is preferred that at least one of the master cylinder port MP and the wheel cylinder port WP is formed on a side surface 73 of the base body 70 that defines the contour of the base body 70 in a third direction D3 that is one of the four directions and is different from the first direction D1 and the second direction D2 when viewed in the viewing direction V. Furthermore, when the hydraulic control unit 60 is viewed in the viewing direction V, the housing 80 does not protrude to the outside of the base body 70 in the third direction D3.

[0079] In the hydraulic control unit 60 configured as above, when the master cylinder port MP is formed on the side surface 73, the connection of the fluid pipe 38 to the master cylinder port MP and the wiring of the fluid pipe 38 become easy. In addition, in the hydraulic control unit 60 configured as above, when the wheel cylinder port WP is formed on the side surface 73, the connection of the fluid pipe 39 to the wheel cylinder port WP and the wiring of the fluid pipe 39 become easy.

[0080] Preferably, when the hydraulic control unit 60 is viewed in the visual direction V, the connector 58 and the base 70 are arranged along the long side direction of the base 70 .

[0081] Generally speaking, the longer one side of the opening of the connector is, the lower the sealing performance is. Therefore, the opening of the conventional connector is approximately square. Therefore, if the connector 58 and the base 70 are arranged along the short side direction of the base 70 when the hydraulic control unit 60 is observed in the sight direction V, a surplus area is formed on the side of the connector 58 in a direction perpendicular to the arrangement direction of the connector 58 and the base 70. On the other hand, if the connector 58 and the base 70 are arranged along the long side direction of the base 70 when the hydraulic control unit 60 is observed in the sight direction V, the formation of the surplus area can be suppressed. As a result, the forming materials of the control substrate 51 and the housing 80 etc. arranged in the surplus area can be reduced, and the hydraulic control unit 60 can be made lighter.

[0082] 〈Variation Example〉

[0083] Figure 7 This is a block diagram showing a modified example of the hydraulic control unit according to the embodiment of the present invention.

[0084] In the past, when the brake control device (brake ECU) of the hydraulic control unit controlled the braking force of the wheels, the engine control device (engine ECU) sometimes cooperated with the brake control device to control the output of the engine to further improve the safety of the vehicle. Here, as described above, the hydraulic control unit 60 of this embodiment can be equipped with a larger control substrate 51 than the existing hydraulic control unit. Therefore, Figure 7 As shown, the hydraulic control unit 60 can mount at least a part of the components of the engine control device 55 for controlling the output of the engine 5 of the straddle-type vehicle 100 on the control substrate 51. Figure 7 , an example is shown in which all components of the brake control device 50 are mounted on the control substrate 51 and all components of the engine control device 55 are mounted on the control substrate 51. In addition, when the straddle-type vehicle 100 uses an electric motor as a drive source instead of the engine, the engine control device 55 controls the output of the electric motor.

[0085] Figure 8 and Fig. 9 It is a diagram showing a modified example of the hydraulic control unit according to the embodiment of the present invention. Figure 8 and Fig. 9 This is a diagram showing a modified example of the hydraulic control unit 60 according to the present embodiment as viewed from a viewing direction V.

[0086] In the above-mentioned hydraulic control unit 60, the direction Xb is the second direction D2. That is, in the above-mentioned hydraulic control unit 60, when the hydraulic control unit 60 is viewed from the visual direction V, the side surface 82 of the housing 80 protrudes outward from the base 70. However, the second direction D2 can be any direction other than the first direction D1, i.e., the direction Xa, among the above-mentioned four directions.

[0087] For example, Figure 8 As shown in FIG. 1 , when the hydraulic control unit 60 is observed from the visual direction V, the direction Xc may also be the second direction D2. Figure 8 As shown, when the hydraulic control unit 60 is viewed from the visual direction V, the side surface 83 of the housing 80 may protrude toward the outside of the base 70. Fig. 9 As shown in FIG. 1 , when the hydraulic control unit 60 is observed from the line of sight direction V, the direction Xd may also be the second direction D2. Fig. 9As shown, when the hydraulic control unit 60 is observed in the sight direction V, the side surface 84 of the housing 80 may protrude to the outside of the base 70. In addition, for example, when the hydraulic control unit 60 is observed in the sight direction V, the direction Xb and the direction Xc may be the second direction D2. In this case, when the hydraulic control unit 60 is observed in the sight direction V, the side surface 82 and the side surface 83 of the housing 80 protrude to the outside of the base 70. In addition, for example, when the hydraulic control unit 60 is observed in the sight direction V, the direction Xb and the direction Xd may be the second direction D2. In this case, when the hydraulic control unit 60 is observed in the sight direction V, the side surface 82 and the side surface 84 of the housing 80 protrude to the outside of the base 70. In addition, for example, when the hydraulic control unit 60 is observed in the sight direction V, the direction Xc and the direction Xd may be the second direction D2. In this case, when the hydraulic control unit 60 is observed in the sight direction V, the side surface 83 and the side surface 84 of the housing 80 protrude to the outside of the base 70. Furthermore, for example, when the hydraulic control unit 60 is viewed from the viewing direction V, the direction Xb, the direction Xc, and the direction Xd may be the second direction D2. In this case, when the hydraulic control unit 60 is viewed from the viewing direction V, the side surfaces 82, 83, and 84 of the housing 80 protrude to the outside of the base 70.

[0088] In the hydraulic control unit 60 thus constructed, a portion of the housing 80 that does not protrude from the base in the housing of the conventional hydraulic control unit protrudes from the base 70 when viewed in the visual direction V. Therefore, in the hydraulic control unit 60 thus constructed, it is also easier to accommodate the control substrate 51 in the housing 80 than in the conventional hydraulic control unit.

[0089] The hydraulic control unit 60 of the present embodiment has been described above, but the hydraulic control unit of the present invention is not limited to the description of the present embodiment. The hydraulic control unit of the present invention may implement only a part of the present embodiment.

[0090] Description of Reference Numerals

[0091] 1: Main body

[0092] 2: Handle

[0093] 3:Front wheel

[0094] 3a: Rotor

[0095] 4: Rear wheel

[0096] 4a: Rotor

[0097] 5. Engine

[0098] 10: Braking system

[0099] 11: Brake lever

[0100] 12: First hydraulic circuit

[0101] 13: Brake pedal

[0102] 14: Second hydraulic circuit

[0103] 21: Master cylinder

[0104] 22: Storage

[0105] 23: Brake caliper

[0106] 24: Wheel cylinder

[0107] 25: Main Road

[0108] 25a: Midway of the main flow path

[0109] 26: Side Flow Path

[0110] 26a: Midway portion of secondary flow path

[0111] 27: Pressurized flow path

[0112] 28: Filling valve

[0113] 29: Release valve

[0114] 30: Storage

[0115] 31: Pump

[0116] 32: Switching valve

[0117] 33: Booster valve

[0118] 34: Master cylinder hydraulic sensor

[0119] 35: Wheel cylinder hydraulic sensor

[0120] 36: Hydraulic adjustment valve

[0121] 37: Coil

[0122] 37a: Terminal

[0123] 38:Liquid pipe

[0124] 39:Liquid pipe

[0125] 40: Motor

[0126] 41: Output shaft

[0127] 42: Eccentric body

[0128] 43:Terminal

[0129] 50: Brake control device

[0130] 51: Control board

[0131] 55: Engine control unit

[0132] 58: Connector

[0133] 60: Hydraulic control unit

[0134] 70: Matrix

[0135] 71: Side

[0136] 72: Side

[0137] 73: Side

[0138] 80: Shell

[0139] 81: Side

[0140] 82: Side

[0141] 82a: Connecting part

[0142] 83: Side

[0143] 84: Side

[0144] 88:Ontology Department

[0145] 89:Gaibu

[0146] 90: Installation

[0147] 100:Straddle-type vehicle

[0148] MP: Master Cylinder Port

[0149] WP: Wheel Cylinder Port

[0150] V: sight direction

[0151] Xa: Direction

[0152] Xb: Direction

[0153] Xc: Direction

[0154] Xd: direction

[0155] D1: First direction

[0156] D2: Second direction

[0157] D3: Third direction.

Claims

1. A hydraulic control unit (60) mounted on a brake system (10) of a straddle-type vehicle (100), have: A base body (70) formed with flow paths (25, 26, 27) for brake fluid; A hydraulic regulating valve (36) for opening and closing the aforementioned flow paths (25, 26, 27); A control substrate (51) on which at least a part of the components of a brake control device (50) for controlling the hydraulic pressure regulating valve (36) is mounted; A housing (80) accommodating the control substrate (51) and connected to the base (70); The connector (58) is disposed in the housing (80) and is electrically connected to the control substrate (51). When observing from a direction parallel to the arrangement direction of the substrate (70) and the shell (80), that is, a line of sight direction (V), in which the substrate (70) and the shell (80) are arranged in this order, The connector (58) is disposed in a region of the housing (80) that protrudes toward the outside of the base (70) in a first direction (D1), wherein the first direction (D1) is one of four directions extending upward, downward, leftward, and rightward from the center of the base (70). The housing (80) also protrudes toward the outside of the base (70) in a second direction (D2), and the second direction (D2) is one of the four directions and is different from the first direction (D1).

2. The hydraulic control unit (60) according to claim 1, characterized in that: A motor (40) is provided as a driving source of a pump (31) for applying pressure to the brake fluid in the flow path (26), The motor (40) is disposed in a space surrounded by the base (70) and the housing (80).

3. The hydraulic control unit (60) according to claim 1 or 2, characterized in that: At least a part of components of an engine control device (55) for controlling the output of an engine (5) of the straddle-type vehicle (100) is mounted on the control substrate (51).

4. The hydraulic control unit (60) according to claim 1 or 2, characterized in that: The side surface (82) of the shell (80) that defines the contour of the shell (80) in the second direction (D2) when observed in the line of sight direction (V) does not protrude toward the outside of the base (70) at the connection portion (82a) connected to the base (70).

5. The hydraulic control unit (60) according to claim 1 or 2, characterized in that: The side surface (72) of the base (70) which defines the outline of the base (70) in the second direction (D2) when viewed in the sight direction (V) is a mounting surface for the straddle-type vehicle (100).

6. The hydraulic control unit (60) according to claim 1 or 2, characterized in that: A side surface (73) of the substrate (70) defining the contour of the substrate (70) in a third direction (D3) forms at least one of a master cylinder port (MP) communicating with the flow path (25) and connected to a fluid pipe (38) communicating with the master cylinder (21), and a wheel cylinder port (WP) communicating with the flow path (25) and connected to a fluid pipe (39) communicating with the wheel cylinder (24), wherein the third direction (D3) is one of the four directions when viewed in the sight line direction (V) and is different from the first direction (D1) and the second direction (D2); When observing from the above-mentioned sight direction (V), The housing (80) does not protrude toward the outside of the base (70) in the third direction (D3).

7. The hydraulic control unit (60) according to claim 1 or 2, characterized in that: When observing from the above-mentioned sight direction (V), The connector (58) and the base (70) are arranged along the long side direction of the base (70).

8. A straddle-type vehicle (100) comprising the hydraulic control unit (60) according to claim 1 or 2.

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