阅读说明：本技术 液压控制装置、跨乘型乘具用制动系统、以及跨乘型乘具 (Hydraulic control device, brake system for straddle-type vehicle, and straddle-type vehicle ) 是由 池田茂树 于 2018-05-15 设计创作，主要内容包括：获得一种能够低成本化的液压控制装置、跨乘型乘具用制动系统、以及跨乘型乘具。液压控制装置(110)中,能够液压控制的液压回路为单系统,被用于轮缸的制动液向主缸以不升压的方式被放出的跨乘型乘具用制动系统,第一线圈(112B)、第二线圈(113B)、以及液压检测器(116)被立设于基体(111)的同一表面,液压检测器(116)的轴从包含第一线圈(112B)的轴以及第二线圈(113B)的轴的基准平面偏移,位于第一平面和第二平面之间,所述第一平面与基准平面正交并且包含第一线圈(112B)的轴,所述第二平面与基准平面正交并且包含第二线圈(113B)的轴。(Provided are a hydraulic control device, a brake system for a straddle-type ride, and a straddle-type ride, which can be reduced in cost. In a hydraulic control device (110), a hydraulic circuit capable of hydraulic control is a single system, and a brake fluid used for a wheel cylinder is discharged to a master cylinder without increasing the pressure, a first coil (112B), a second coil (113B), and a hydraulic pressure detector (116) are erected on the same surface of a base (111), the axis of the hydraulic pressure detector (116) is offset from a reference plane including the axis of the first coil (112B) and the axis of the second coil (113B) and is positioned between a first plane orthogonal to the reference plane and including the axis of the first coil (112B) and a second plane orthogonal to the reference plane and including the axis of the second coil (113B).)

1. A hydraulic control device (110) is a hydraulic control device of a straddle-type passenger brake system (100), wherein a hydraulic circuit (101) capable of hydraulic control is a single system, a main flow path (170) communicating a master cylinder (24B) and a wheel cylinder (27A) is filled with brake fluid in the hydraulic circuit (101), the brake fluid of the wheel cylinder (27A) is discharged to the master cylinder (24B) through a sub-flow path (180) without increasing the pressure,

the disclosed device is characterized by being provided with:

a base (111) having an internal flow path formed therein, the internal flow path including a first flow path (111C) constituting at least a part of the main flow path (170) and a second flow path (111D) constituting at least a part of the sub flow path (180);

a first coil (112B) as a drive source of a first hydraulic pressure adjustment valve (112) that opens and closes the first flow path (111C);

a second coil (113B) as a drive source for a second hydraulic pressure adjustment valve (113) that opens and closes the second flow path (111D);

a hydraulic pressure detector (116) that is provided in the internal flow path and detects the hydraulic pressure of the brake fluid in the wheel cylinder (27A),

the first coil (112B), the second coil (113B), and the hydraulic pressure detector (116) are erected on the same surface of the base (111),

the axis (A3) of the aforementioned hydraulic pressure detector (116) is offset from a reference Plane (PR) containing the axis (a 1) of the aforementioned first coil (112B) and the axis (a 2) of the aforementioned second coil (113B), and is located between a first plane (P1) and a second plane (P2), the first plane (P1) being orthogonal to the reference Plane (PR) and containing the axis (a 1) of the first coil (112B), the second plane (P2) being orthogonal to the reference Plane (PR) and containing the axis (a 2) of the second coil (113B).

2. The hydraulic control apparatus according to claim 1, wherein a master cylinder port (111A) and a wheel cylinder port (111B) are formed in the base (111) in a region on a side of the first plane (P1) where the second plane (P2) is absent, the master cylinder port (111A) being connected to a fluid pipe (24D) communicating with the master cylinder (24B), and the wheel cylinder port (111B) being connected to a fluid pipe (27C) communicating with the wheel cylinder (27A).

3. The hydraulic control apparatus according to claim 1 or 2,

the disclosed device is provided with:

a case (141) that is attached to the base (111), that has a housing section (141B) that opens onto an attachment surface (141A) of the base (111), and that houses the first coil (112B), the second coil (113B), and the hydraulic pressure detector (116) in the housing section (141B);

an electronic substrate (161) provided on the back side of the bottom (151) of the housing section (141B),

a hydraulic pressure detector through hole (154) is formed in a region of the bottom part (151) that intersects an axis (A3) of the hydraulic pressure detector (116), and the top part of the hydraulic pressure detector (116) protrudes to the rear side of the bottom part (151) through the hydraulic pressure detector through hole (154).

4. The hydraulic control apparatus according to claim 3, wherein motor terminal through holes (155, 156) are formed in the bottom portion (151) of the housing (141) on both sides of the hydraulic pressure detector through hole (154).

5. The hydraulic control apparatus according to claim 3 or 4, wherein the first coil (112B) and the second coil (113B) are connected to the electronic board (161) to which the hydraulic pressure detector (116) is connected,

the end of the hydraulic pressure detector (116) on the side of the base (111) is provided with:

a coupling portion (116A) that is inserted into and coupled to a mounting hole (133) for a hydraulic pressure detector formed in the base body (111); and a flange portion (116B) formed on the side having the electronic substrate (161) with respect to the connection portion (116A).

6. The hydraulic control apparatus according to claim 5, wherein a step surface (133A) lower than a region where the first coil (112B) and the second coil (113B) of the base (111) stand is formed around the hydraulic pressure detector attachment hole (133) of the base (111).

7. The hydraulic control apparatus according to any one of claims 1 to 6, wherein the wheel cylinder (27A) generates a braking force for a front wheel (26) of the straddle-type ride (1).

8. A brake system for a straddle-type vehicle, characterized by comprising the hydraulic control device (110) according to any one of claims 1 to 7.

9. A straddle-type vehicle, comprising the brake system (100) according to claim 8.

Technical Field

The present invention relates to a hydraulic control device, a straddle-type vehicle brake system provided with the hydraulic control device, and a straddle-type vehicle provided with the straddle-type vehicle brake system.

Background

Conventionally, as a brake system mounted on a straddle-type vehicle (for example, a bicycle, a motorcycle, a tricycle, an all terrain vehicle, etc.), there is a technology in which a hydraulic circuit capable of hydraulic control is provided with only a single system. In this hydraulic circuit, a main flow path that communicates the master cylinder and the wheel cylinder is filled with brake fluid. When the rider operates a brake operation unit such as a lever, the hydraulic pressure of the brake fluid in the main flow path increases, and the wheel provided with the wheel cylinder can be caused to generate braking force. In this hydraulic circuit, the brake fluid in the wheel cylinder can be released to the master cylinder through the sub-passage. That is, the brake system includes a hydraulic control device that controls the hydraulic pressure of the brake fluid in the wheel cylinder, that is, the braking force of the wheel, by controlling the operation of the hydraulic pressure regulating valve provided in the main flow path and the operation of the hydraulic pressure regulating valve provided in the sub flow path. For example, if the hydraulic control device recognizes the floating of the rear wheel or the possibility thereof, the hydraulic control device makes it possible to flow the brake fluid in the sub-channel and reduce the hydraulic pressure of the brake fluid in the wheel cylinder (see, for example, patent document 1).

Patent document 1: international publication No. 2016/174533.

In a conventional brake system, as a specification in a case where a hydraulic circuit capable of hydraulic control is a single system, for example, there is a specification in which a brake fluid of a wheel cylinder is discharged by driving a pump (i.e., boosting pressure) and a specification in which a brake fluid of a wheel cylinder is discharged without boosting pressure. In order to meet the specification for releasing the brake fluid from the wheel cylinder by driving the pump, a motor serving as a drive source of the pump needs to be attached to a base of the hydraulic control device. In the case of a specification in which the brake fluid in the wheel cylinder is discharged without increasing the pressure, a fluid pressure detector for identifying the floating of the rear wheel or the possibility thereof, that is, a fluid pressure detector for detecting the brake fluid pressure in the wheel cylinder may be provided in the base of the fluid pressure control device. However, in the conventional brake system, it is necessary to greatly vary the shapes, manufacturing processes, and the like of the components of the hydraulic pressure control device for each specification, and the component costs (for example, purchase costs, machining costs, management costs, and the like) increase.

Disclosure of Invention

The present invention was made in view of the above-described problems, and an object of the present invention is to provide a hydraulic control device that can be reduced in cost, a straddle-type vehicle brake system including such a hydraulic control device, and a straddle-type vehicle including such a straddle-type vehicle brake system.

The present invention is a hydraulic control device of a straddle-type vehicle brake system, in which a hydraulic circuit capable of hydraulic control is a single system, a main flow path communicating a master cylinder and a wheel cylinder is filled with brake fluid, and the brake fluid of the wheel cylinder is discharged to the master cylinder through a sub-flow path without increasing pressure, the hydraulic control device is characterized by comprising a base body formed with an internal flow path including a first flow path constituting at least a part of the main flow path and a second flow path constituting at least a part of the sub-flow path; a first coil serving as a drive source of a first hydraulic pressure adjustment valve that opens and closes the first flow path; a second coil serving as a drive source of a second hydraulic pressure adjusting valve for opening and closing the second flow path; and a fluid pressure detector provided in the internal flow path and detecting a fluid pressure of the brake fluid in the wheel cylinder, wherein the first coil, the second coil, and the fluid pressure detector are erected on the same surface of the base, and an axis of the fluid pressure detector is offset from a reference plane including an axis of the first coil and an axis of the second coil and is located between a first plane orthogonal to the reference plane and including the axis of the first coil and a second plane orthogonal to the reference plane and including the axis of the second coil.

The present invention provides a straddle-type vehicle brake system including the above-described hydraulic control device.

The present invention provides a straddle-type vehicle having the above-described brake system for a straddle-type vehicle.

In the hydraulic control apparatus according to the present invention, the first coil, the second coil, and the hydraulic pressure detector are erected on the same surface of the base, and an axis of the hydraulic pressure detector is offset from a reference plane including an axis of the first coil and an axis of the second coil and is located between a first plane orthogonal to the reference plane and including the axis of the first coil and a second plane orthogonal to the reference plane and including the axis of the second coil. In order to meet the specification for discharging the brake fluid of the wheel cylinder by driving the pump, it is preferable to offset the axis of the motor from the reference plane and position the axis between the first plane and the second plane for the purpose of downsizing. Further, the hydraulic pressure detector required for the specification of discharging the brake fluid in the wheel cylinder without increasing the pressure is provided at the same position as the motor, so that the shape, manufacturing process, and the like of the components of the hydraulic pressure control device can be made common. Therefore, the hydraulic control apparatus is reduced in cost.

Drawings

Fig. 1 is a diagram showing a schematic configuration of a straddle-type vehicle brake system according to a first embodiment of the present invention and a bicycle to which the same is applied.

Fig. 2 is a diagram showing a schematic configuration of a straddle-type vehicle brake system according to a first embodiment of the present invention.

Fig. 3 is a perspective view showing a schematic configuration of a hydraulic control device of a straddle-type vehicle brake system according to a first embodiment of the present invention.

Fig. 4 is a perspective view showing a schematic configuration of a hydraulic control device of a straddle-type vehicle brake system according to a first embodiment of the present invention.

Fig. 5 is an exploded perspective view showing a schematic configuration of a hydraulic control device of a straddle-type vehicle brake system according to a first embodiment of the present invention.

Fig. 6 is a perspective view showing an example of a base of a hydraulic control device of a straddle-type vehicle brake system according to a first embodiment of the present invention.

Fig. 7 is a partial sectional view of a hydraulic control device of a straddle-type vehicle brake system according to a first embodiment of the present invention.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings as appropriate.

In the following, a case will be described where the brake system for a straddle-type ride according to the present invention is mounted on a bicycle (e.g., a two-wheeled vehicle, a three-wheeled vehicle, etc.), but the brake system for a straddle-type ride according to the present invention may be mounted on a straddle-type ride other than a bicycle (e.g., a two-wheeled vehicle, a three-wheeled vehicle, an off-road vehicle, etc.). The bicycle is a general riding device that can be propelled on a road by a pedaling force applied to pedals. Namely, the bicycle comprises a common bicycle, an electric power-assisted bicycle, an electric bicycle and the like. The motorcycle refers to a so-called motorcycle, and includes an electric bicycle, a scooter, an electric scooter, and the like.

The configuration, operation, and the like described below are examples, and the hydraulic control device according to the present invention is not limited to such a configuration, operation, and the like. For example, the hydraulic control device according to the present invention may be a device other than the rear wheel lift suppression control.

In the drawings, the same or corresponding components or portions are denoted by the same reference numerals or are not denoted by the same reference numerals. In each drawing, the detailed part is simplified or omitted as appropriate.