Master cylinder assembly, brake assembly and vehicle

Abstract

The application provides a master cylinder assembly, a brake assembly and a vehicle. The brake assembly comprises: a first pressure building part; a plurality of first fixing parts distributed on at least one side of the axis of the first pressure building part; the first pressure building part has a plurality of first oil channel openings to communicate with at least one oil path module, and at least one of the plurality of first oil channel openings is arranged in the area surrounded by the plurality of first fixing parts. In this way, the first oil channel opening is at least partially arranged in the area surrounded by the fixing parts, the contact area between the modules is effectively compressed, and the integration of the product is improved.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle braking technology, and in particular to a master cylinder assembly, a brake assembly, and a vehicle having the brake assembly. Background Technology

[0002] The braking assembly is the core collection of components in a vehicle's braking system, responsible for converting the driver's braking commands into braking force to decelerate or stop the vehicle. For example, when the driver presses the brake pedal, the corresponding braking command is transmitted to the brake (such as a friction brake or a non-friction brake), which then applies the braking force, thereby decelerating or stopping the vehicle. Summary of the Invention

[0003] In a first aspect, a master cylinder assembly is provided, comprising: a first pressure-building section; and a plurality of first fixing sections, the plurality of first fixing sections being distributed on at least one side of the axis of the first pressure-building section; the first pressure-building section having a plurality of first oil passages for connecting to at least one oil circuit module, at least one of the plurality of first oil passages being disposed within an area enclosed by the plurality of first fixing sections. By at least partially disposing the first oil passages within the area enclosed by the fixing sections, the contact area between modules is effectively reduced, which is beneficial for improving the integration of the product.

[0004] In some embodiments, the lines connecting at least three of the plurality of first fixing parts form a triangle, and at least one of the plurality of first oil passages is located in the triangle.

[0005] In some embodiments, the plurality of first oil passages are all located within the circumcircle of the triangle.

[0006] In some embodiments, the triangle satisfies one of the following: the triangle is a right-angled or obtuse-angled triangle; the triangle is a right-angled or obtuse-angled triangle and is an isosceles triangle; the triangle is an isosceles triangle; the triangle is an equilateral triangle.

[0007] In some embodiments, the master cylinder further includes: a first cavity disposed in the first pressure-building section, a first piston disposed in the first cavity to form hydraulic pressure, and the first cavity communicating with the first oil passage.

[0008] In some embodiments, the first pressure-building section has a plurality of second oil passages for communicating with the reservoir, the second oil passages having an opening direction opposite to that of the first oil passage.

[0009] In some embodiments, the second oil passage and the first oil passage are located on opposite sides of the axis of the first pressure-building section.

[0010] In some embodiments, the opening direction of the second oil passage is perpendicular to the axial direction of the first pressure-building section.

[0011] In some embodiments, a sealing groove is provided in the first oil passage, and a sealing element is provided in the sealing groove.

[0012] In a second aspect, a braking assembly is provided, including the aforementioned master cylinder assembly.

[0013] In some embodiments, a hydraulic block is further included, the hydraulic block including a plurality of second fixing parts disposed on the side of the body of the hydraulic block near the master cylinder; the plurality of first fixing parts are respectively connected to the plurality of second fixing parts so that the master cylinder is connected to the hydraulic block; wherein, at least one of the plurality of first oil passages is disposed in the area enclosed by the plurality of second fixing parts.

[0014] In some embodiments, the system further includes a reservoir, wherein the first pressure-building section has a plurality of second oil passages connected to the reservoir.

[0015] Thirdly, a vehicle is provided, comprising: a vehicle body; wheels connected to the vehicle body; and the aforementioned braking assembly connected between the vehicle body and the wheels. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments of this disclosure will be briefly described below. However, the drawings described below are merely drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. Furthermore, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc., involved in the embodiments of this disclosure.

[0017] Figure 1 This is an exploded view of a braking supply unit in related technologies;

[0018] Figure 2 This is a structural diagram of a vehicle according to some embodiments;

[0019] Figure 3 This is a perspective view of a braking assembly according to some embodiments;

[0020] Figure 4 This is an exploded view of a braking assembly according to some embodiments;

[0021] Figure 5 This is a schematic diagram of a braking assembly according to some embodiments;

[0022] Figure 6 This is another exploded view of a braking assembly according to some embodiments;

[0023] Figure 7 This is an exploded view of a braking assembly according to some embodiments, taken from another perspective.

[0024] Figure 8 It is along Figure 3 A cross-sectional view of the JJ line in the middle;

[0025] Figure 9 This is a structural diagram of the master cylinder assembly according to some embodiments;

[0026] Figure 10 This is a side view of the master cylinder assembly according to some embodiments;

[0027] Figure 11 This is a structural diagram of the master cylinder assembly from another perspective, based on some embodiments;

[0028] Figure 12 This is a structural diagram of another braking assembly according to some embodiments. Detailed Implementation

[0029] The technical solutions in some embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. However, the described embodiments are only some embodiments of this disclosure, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments provided in this disclosure are within the scope of protection of this disclosure.

[0030] Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms, such as the third-person singular "comprises" and the present participle "comprising," are interpreted as open-ended and encompassing, meaning "including, but not limited to." In the description of the specification, terms such as "one embodiment," "some embodiments," "exemplary embodiments," "example," "specific example," or "some examples," etc., are intended to indicate that a particular feature, structure, material, or characteristic associated with that embodiment or example is included in at least one embodiment or example of this disclosure. The illustrative representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics mentioned may be included in any suitable manner in any one or more embodiments or examples.

[0031] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0032] In describing some embodiments, the term "connection" and its derivative expressions may be used. The term "connection" should be interpreted broadly; for example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. The embodiments disclosed herein are not necessarily limited to the content of this document.

[0033] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0034] The use of “applies to” or “configured to” in this article implies an open and inclusive language that does not preclude applicability to or configuration to devices that perform additional tasks or steps.

[0035] As used herein, “about,” “approximately,” or “approximately” includes the stated value and the average value within an acceptable range of deviation from the given value, wherein the acceptable range of deviation is determined by a person skilled in the art taking into account the measurement under discussion and the error associated with the measurement of the given quantity (i.e., the limitations of the measurement system).

[0036] As used herein, “parallel,” “perpendicular,” and “equal” include the described situation and situations that are similar to the described situation, within an acceptable range of deviation, which is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, “parallel” includes absolute parallelism and approximate parallelism, where an acceptable range of deviation for approximate parallelism may be, for example, within 5°; “perpendicular” includes absolute perpendicularity and approximate perpendicularity, where an acceptable range of deviation for approximate perpendicularity may also be, for example, within 5°; “equal” includes absolute equality and approximate equality, where an acceptable range of deviation for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.

[0037] For ease of description, unless otherwise specified, the descriptions of up, down, left, right, front, and rear directions in this disclosure are based on the vehicle's driving state. The side on which the vehicle is moving forward is the front side, and the opposite side is the rear side. The vehicle's height direction is the up and down direction.

[0038] In related technologies, such as Figure 1 As shown, the brake supply unit 10A includes a master cylinder 11A, a simulator 12A, a valve block 13A, a hydraulic generator 14A, and an electronic control unit 15A. The hydraulic generator 14A includes a motor 16A, a power conversion unit 17A that converts the rotational force of the motor 16A into linear motion, and a linear pump 18A that converts the linear motion of the power conversion unit 17A into brake hydraulic pressure. However, due to the large number of components in the brake supply unit 10A and their dispersed distribution, the assembly process is complex, assembly efficiency is low, and the brake supply unit 10A has poor versatility, making it difficult to flexibly adapt to different vehicle models. Furthermore, due to the complex connections between components, it is difficult to accurately locate faults during maintenance, hindering subsequent maintenance and repair.

[0039] Therefore, some embodiments of this disclosure provide a vehicle 1000. The vehicle 1000 can be a pure electric vehicle, a hybrid electric vehicle, a plug-in hybrid electric vehicle, a range-extended electric vehicle, a gasoline vehicle, etc. The vehicle 1000 can also be a sedan, truck, bus, lorry, trailer, etc., and this disclosure does not limit the type of vehicle.

[0040] like Figure 2 As shown, the vehicle 1000 includes a body 30, wheels 20 and a brake assembly 10.

[0041] Wheel 20 is connected to the underside of vehicle body 30. During the movement of vehicle 1000, wheel 20 rotates to drive vehicle body 30 to move.

[0042] The braking assembly 10 is connected between the vehicle body 30 and the wheels 20 and is configured to brake the wheels 20 during the movement of the vehicle 1000 so that the vehicle 1000 can decelerate or stop in a timely manner.

[0043] For example, the braking assembly 10 includes a brake pedal and a brake. The brake pedal is located on the vehicle body 30 and is configured to issue a braking command in response to the driver's depressing of the pedal. It should be noted that the braking command can be an electronic or mechanical signal used to trigger, control, or transmit braking action.

[0044] The brake is located near the wheel 20 and is configured to brake the wheel 20 according to a braking command to decelerate or stop the vehicle 1000. The brake may include a friction brake (such as a disc brake or a drum brake) or a non-friction brake (such as a magnetic powder brake or a magnetic eddy current brake).

[0045] The braking assembly 10 in some embodiments of this disclosure is described in detail below.

[0046] In some embodiments, such as Figure 3 and Figure 4 As shown, the braking assembly 10 includes a master cylinder assembly 100, a hydraulic block 200, an electronic control assembly 300, a motor 400, a piston pump 500, a reservoir 600, and a simulator 700.

[0047] The axis X1 of the master cylinder is approximately parallel to a first direction (such as the front-to-back direction). The input end of the master cylinder assembly 100 is connected to the brake pedal and is configured to generate hydraulic pressure based on the displacement of the brake pedal. Here, "displacement of the brake pedal" can be understood as the displacement of the brake pedal when the driver presses it.

[0048] For ease of description, some embodiments of this disclosure are illustrated by taking the example that the axis X1 of the master cylinder is parallel to the first direction. Of course, in some embodiments, the axis X1 of the master cylinder may also have an angle (such as an acute angle) with the first direction, and this disclosure does not limit this.

[0049] The hydraulic block 200 is disposed on a first side (e.g., right side) of the master cylinder assembly 100 in a second direction (e.g., left-right direction), and is located on the first side (e.g., right side) of the axis X1 of the master cylinder in the second direction. The hydraulic block 200 can communicate with the master cylinder assembly 100, and can be arranged separately from the master cylinder assembly 100. For example, the hydraulic block 200 is connected to the master cylinder assembly 100 by fasteners (e.g., bolts), and the internal hydraulic passages of the hydraulic block 200 communicate with the internal hydraulic passages of the master cylinder assembly 100 to form multiple hydraulic circuits in the brake assembly 10 for braking the vehicle 1000.

[0050] The electronic control component 300 is disposed on the side of the hydraulic block 200 away from the master cylinder assembly 100 (e.g., the right side) (or the first side of the master cylinder assembly 100 in the second direction), and is located to the right of the axis X1 of the master cylinder. The electronic control component 300 is configured to control the operation of the components in the braking assembly 10 to achieve braking of the vehicle 1000.

[0051] The motor 400 is disposed on the second side (e.g., left side) of the master cylinder assembly 100 in the second direction, and the motor 400 is located on the second side (e.g., left side) of the axis X1 of the master cylinder in the second direction, so that the motor 400 and the electronic control assembly 300 are respectively located on both sides of the axis X1 of the master cylinder assembly 100 in the second direction. The motor 400 is electrically connected to the electronic control assembly 300 and is configured to provide driving force to the piston pump 500. The axis X2 of the motor intersects the axis X1 of the master cylinder in space. For example, in a plane perpendicular to a third direction (e.g., vertical direction), the orthographic projection of the axis X1 of the master cylinder intersects the orthographic projection of the axis X2 of the motor.

[0052] A piston pump 500 is connected to a motor 400, and at least a portion of the piston pump 500 is located within the master cylinder assembly 100. The piston pump 500 and the motor 400 are coaxially arranged. For example, the axis X3 of the piston pump coincides with the axis X2 of the motor, and the axes X3 of the piston pump and X2 of the motor are perpendicular to the axis X1 of the master cylinder. Of course, in some embodiments, the axis of the motor or piston pump may also form other angles with the axis X1 of the master cylinder, as long as the orthographic projection of the axis X1 of the master cylinder intersects the orthographic projection of the axis X2 of the motor in a plane perpendicular to a third direction.

[0053] The reservoir 600 is located on the second side of the master cylinder assembly 100, and on the side of the motor 400 facing upwards (e.g., the upper side). The reservoir 600 stores brake fluid and communicates with the internal cavity of the master cylinder assembly 100. For example, the reservoir 600 is fixed to the master cylinder assembly 100 by fasteners (e.g., bolts), and the reservoir 600 can be a reservoir, etc.

[0054] The simulator 700 is positioned at a first end (e.g., the front end) of the master cylinder assembly 100 in a first direction, and the simulator's axis X4 is parallel to or coincides with the master cylinder's axis X1. For example, when the first piston 112 within the master cylinder assembly 100 is building pressure, the simulator 700 is located at the end of the master cylinder assembly 100 closest to the first piston 112. The first piston 112 will be described later. In a third direction, the simulator's axis X4 may be lower than the master cylinder's axis X1. The simulator 700 is configured to provide a counterforce based on the hydraulic pressure generated in the internal cavity of the master cylinder assembly 100 to provide a feel when the driver depresses the brake pedal.

[0055] After the brake assembly 10 is installed in the vehicle, the end face of the master cylinder assembly 100 (e.g.) Figure 3 The surface A1 shown coincides with one side surface of the vehicle in the first direction (such as the front surface), and the end face of the electronic control component 300 (such as...) Figure 3 As shown in the A2 face) and the end face of the motor 400 (as shown in the image) Figure 3 The A3 surface shown can be approximately perpendicular to the front surface of the front panel 31. Here, the end face of the motor 400 can be understood as a plane perpendicular to the axis of the motor 400 and parallel or tangent to the side surface of the motor 400 away from the electronic control assembly 300.

[0056] It should be noted that the first direction, the second direction, and the third direction are perpendicular to each other. Of course, the included angle between any two of the first direction, the second direction, and the third direction can also be an acute angle or an obtuse angle, and this disclosure is not limited to this.

[0057] In some embodiments of this disclosure, the master cylinder assembly 100 and the hydraulic block 200 are designed separately, allowing each functional component in the brake assembly 10 to be connected independently. With the master cylinder assembly 100 as the main body, each functional component is directly or indirectly mounted on the master cylinder assembly 100, enabling the brake assembly 10 to flexibly match the front panels of different vehicle models, improving the versatility of the brake assembly 10, resulting in a compact structure, easy assembly, and improved space utilization. Furthermore, in the event of damage to components in the brake assembly 10, the damaged components can be easily replaced, facilitating maintenance and repair.

[0058] In addition, the space between the brake assembly 10 and the front panel 31 at the installation position can be increased, which facilitates the installation of the brake assembly 10 and the pipes connected to the brake assembly 10 on the vehicle 1000, improves the assembly efficiency, and solves the problem in the related technology that the installation space between the wheel cylinder interface and the pipe is too small (such as the space where the wrench can be inserted) when manually installing the wheel cylinder interface and the pipe, which makes the installation inconvenient.

[0059] Here, the wheel cylinder interface refers to the interface used to connect the master cylinder assembly 100 and the brake. The wheel cylinder interface is connected to the internal cavity of the master cylinder assembly 100 and to the brake through a pipe, so that the hydraulic pressure generated in the internal cavity of the master cylinder assembly 100 can be delivered to the brake to brake the vehicle 1000.

[0060] In some embodiments, such as Figure 4 As shown, the motor's axis X2 is located on the first side of the main cylinder's axis X1 in the third direction (as shown below).

[0061] The axis X5 of the reservoir outlet is perpendicular to the axis X1 of the master cylinder and is located on the second side (as above) of the master cylinder axis X1 in a third direction. Furthermore, the axis X5 of the reservoir outlet and the axis X2 of the motor are both perpendicular to the plane containing the electronic control assembly 300. It should be noted that the reservoir outlet is the first oil passage 123 described below.

[0062] On a plane perpendicular to the third direction, the orthographic projection of the axis X6 of the reservoir inlet intersects the orthographic projection of the axis X2 of the motor, and the axis X6 of the reservoir inlet is located on the side of the axis X2 of the motor in the third direction (such as the upper side).

[0063] The axis X1 of the main cylinder, the axis X4 of the simulator, and the axis X6 of the reservoir inlet are located between the hydraulic block 200 and the motor 400.

[0064] The master cylinder assembly 100 in some embodiments of this disclosure is described below.

[0065] In some embodiments, the master cylinder assembly 100 may include at least one of a plurality of cavities and at least one of a plurality of first hydraulic passages. The first cavity of the plurality of three cavities is used to mount the first piston 112, at least a portion of the second cavity of the plurality of cavities is configured as the hydraulic chamber of the piston pump 500, and the third cavity of the plurality of cavities is used to mount the simulator 700. The plurality of first hydraulic passages may be divided into two parts. The first part of the plurality of first hydraulic passages connects the reservoir 600 and at least one of the plurality of cavities, and the second part of the plurality of first hydraulic passages connects at least one of the plurality of cavities and the second hydraulic passage of the hydraulic block 200 (i.e., the hydraulic passage inside the aforementioned hydraulic block 200) to realize the braking function of the braking assembly 10.

[0066] Correspondingly, the hydraulic block 200 also includes a plurality of second hydraulic channels to connect to the first hydraulic channel of the master cylinder assembly 100.

[0067] For example, such as Figure 8 As shown, at least three cavities include a first cavity 101, a third cavity 102, and a second cavity 103. A first piston 112 is disposed within the first cavity 101, which is the chamber where the first piston 112 builds pressure. The simulator 700 is disposed within the third cavity 102. At least a portion of the second cavity 103 is configured as the hydraulic chamber of the piston pump 500.

[0068] It should be noted that some embodiments of this disclosure are mainly illustrated by the example of a master cylinder assembly 100 including a first cavity 101, a third cavity 102, and a second cavity 103. Of course, in some embodiments, the third cavity 102 may also be disposed in the hydraulic block 200. For example, the master cylinder assembly 100 includes a first cavity 101 and a second cavity 103, the hydraulic block 200 includes a third cavity 102, and the simulator 700 is disposed in the third cavity 102 of the hydraulic block 200. Furthermore, the master cylinder assembly 100 may also include at least one of the first cavity 101 and the second cavity 103.

[0069] like Figure 9 and Figure 11 As shown, the multiple first hydraulic channels include a first sub-hydraulic channel Z1, a second sub-hydraulic channel Z2, a third sub-hydraulic channel Z3, a fourth sub-hydraulic channel H1, a fifth sub-hydraulic channel H2, and a sixth sub-hydraulic channel H3.

[0070] The second end of the first sub-hydraulic channel Z1 is connected to the first cavity 101, the second end of the second sub-hydraulic channel Z2 is connected to the third cavity 102, and the second end of the third sub-hydraulic channel Z3 is connected to the second cavity 103.

[0071] The first ends of the fourth sub-hydraulic channel H1, the fifth sub-hydraulic channel H2, and the sixth sub-hydraulic channel H3 are respectively connected to the reservoir 600. The second end of the fourth sub-hydraulic channel H1 is connected to the first cavity 101, the second end of the fifth sub-hydraulic channel H2 is connected to the second cavity 103, and the second end of the sixth sub-hydraulic channel H3 is connected to the third cavity 102 and the second cavity 103 respectively.

[0072] In some embodiments, such as Figure 9 As shown, the first sub-hydraulic channel Z1 has a first sub-oil port Z11 at its first end, which is the oil outlet of the first cavity 101. The second sub-hydraulic channel Z2 has a second sub-oil port Z21 at its first end, which is the oil outlet of the third cavity 102. The third sub-hydraulic channel Z3 has a third sub-oil port Z31 at its first end, which is the oil inlet and outlet of the second cavity 103.

[0073] The first sub-oil port Z11, the second sub-oil port Z21, and the third sub-oil port Z31 are located on the third plane of the master cylinder assembly 100. The third plane can be a plane perpendicular to the second direction and located to the right of the axis X1 of the master cylinder. Of course, the third plane can also be a plane that forms other angles with the axis X1 of the master cylinder, and this disclosure is not limited thereto.

[0074] In some embodiments, such as Figure 11 As shown, the first end of the fourth sub-hydraulic channel H1 is provided with a fourth sub-oil port H11, which serves as the oil inlet of the first cavity 101. The first end of the fifth sub-hydraulic channel H2 is provided with a fifth sub-oil port H21, which serves as the oil inlet of the second cavity 103. The first end of the sixth sub-hydraulic channel H3 is provided with a sixth sub-oil port H31, which serves as the oil return port of the third cavity 102 and the second cavity 103.

[0075] The fourth sub-oil port H11, the fifth sub-oil port H21, and the sixth sub-oil port H31 are located on the fourth plane of the master cylinder assembly 100. The fourth plane can be a plane perpendicular to the second direction and located to the left of the axis X1 of the master cylinder. Of course, the fourth plane can also be a plane that forms other angles with the axis X1 of the master cylinder, and this disclosure is not limited thereto.

[0076] Since the third and fourth planes are located on opposite sides of the vertical plane containing the axis X1 of the master cylinder, therefore, as Figure 5 As shown, when the master cylinder assembly 100 is connected to the reservoir 600 and the hydraulic block 200 respectively, the mass of the brake assembly 10 can be evenly distributed, and the center of mass of the brake assembly 10 can be balanced, which is beneficial to improving the stability and reliability of the brake assembly 10. Here, the vertical plane containing the axis X1 of the master cylinder refers to the plane that passes through the axis X1 of the master cylinder and is perpendicular to the second direction. Figure 7 In the figure, G1, G2 and G3 represent the gravity directions of the master cylinder assembly 100, the reservoir 600 and the hydraulic block 200, respectively.

[0077] In some embodiments, the third plane or the first sub-oil passage Z11, the second sub-oil passage Z21, and the third sub-oil passage Z31 may also be connected to other oil circuit modules, which can be adjusted according to product needs. The oil circuit module in this application refers to a functional module connected in the brake oil circuit, which may be a hydraulic block, piston pump, oil reservoir, or another master cylinder assembly provided for redundancy.

[0078] In some embodiments, sealing grooves may be provided at the first sub-oil passage Z11, the second sub-oil passage Z21, and the third sub-oil passage Z31, or at other oil passages or connections of the hydraulic block 200 and the main cylinder assembly 100. Each sealing groove is annular, and a sealing element is provided within each sealing groove. The sealing element may be made of an elastic sealing material. For example, the sealing element includes a rubber sealing ring, sealant, etc.

[0079] When the hydraulic block 200 and the main cylinder assembly 100 are connected, they can compress the seal, thereby achieving the sealing of multiple sub-oil passages (i.e., the connection between the hydraulic channels of the main cylinder assembly 100 and the hydraulic block 200) between the hydraulic block 200 and the main cylinder assembly 100 through the elastic deformation of the third seal.

[0080] In some embodiments, such as Figure 10 As shown, the master cylinder assembly 100 also includes a plurality of first fixing portions 125, which are disposed on the side of the master cylinder assembly 100 near the hydraulic block 200. The first pressure-building portion 110 and the second pressure-building portion 120 will be described later. Correspondingly, the hydraulic block 200 may also include a plurality of second fixing portions, which are disposed on the side of the body of the hydraulic block 200 near the master cylinder assembly 100. The first fixing portions 125 are connected to the second fixing portions to realize the connection between the hydraulic block 200 and the master cylinder assembly 100. At least one of the plurality of first oil passages 123 is disposed in the area enclosed by the plurality of first fixing portions (125).

[0081] In some embodiments, at least one of the first sub-oil passage Z11, the second sub-oil passage Z21, and the third sub-oil passage Z31 (or at least one first oil passage 123 described below) is disposed in an area enclosed by a plurality of first fixing parts 125 (or a plurality of second fixing parts). The enclosed area may be an area enclosed by a line connecting the centers of adjacent first fixing parts 125. By disposing the oil passage in the area enclosed by the fixing parts, the contact area between modules is effectively reduced, which is beneficial to improving the integration of the product.

[0082] In some embodiments, such as Figure 10As shown, the plurality of first fixing parts 125 include a plurality of first fixing holes, and the plurality of second fixing parts include a plurality of second fixing holes, with the first fixing holes corresponding to the second fixing holes respectively. At least one of the first fixing holes and the second fixing holes is a threaded hole. In this case, a fastener (such as a bolt) can pass through the first fixing hole and connect to the corresponding second fixing hole, or a fastener can pass through the second fixing hole and connect to the corresponding first fixing hole, thereby realizing the connection between the hydraulic block 200 and the master cylinder assembly 100.

[0083] In some embodiments, such as Figure 10 As shown, the triangle formed by the lines connecting the centers of at least three first fixing parts 125 (or at least three second fixing parts) can be a right-angled or obtuse triangle. At least a portion of the first sub-oil passage Z11, the second sub-oil passage Z21, and the third sub-oil passage Z31 (or at least two of the first oil passages 123 described below) is located within the triangle, or the first sub-oil passage Z11, the second sub-oil passage Z21, and the third sub-oil passage Z31 (or at least one of the first oil passages 123 described below) are all located within the circumcircle of the triangle.

[0084] In this way, by arranging multiple first fixing parts 125 or multiple second fixing parts in a triangular pattern, the third seal, which is squeezed by the hydraulic block 200 and the main cylinder assembly 100, can be subjected to uniform force, and each oil passage can be located within the effective compression area of ​​the triangle, which is beneficial to improving the sealing effect between the hydraulic block 200 and the main cylinder assembly 100.

[0085] In some embodiments, the triangle formed by the lines connecting the centers of at least three first fixing parts 125 (or at least three second fixing parts) can be an isosceles triangle. This can further improve the uniformity of force distribution on the third seal within the triangle, which is beneficial for improving the sealing effect between the hydraulic block 200 and the master cylinder assembly 100.

[0086] In some embodiments, the triangle formed by the lines connecting the centers of at least three first fixing parts 125 (or at least three second fixing parts) can be an equilateral triangle. This can further improve the uniformity of force distribution on the third seal within the triangle, which is beneficial for improving the sealing effect between the hydraulic block 200 and the main cylinder assembly 100.

[0087] It is understood that the above triangles may also be roughly or approximately isosceles triangles or equilateral triangles, and this disclosure is not limited to this.

[0088] In some embodiments, such as Figure 11As shown, the first sub-oil passage Z11 is located on the side of the horizontal plane containing the axis X1 of the main cylinder in a third direction (such as the upper side), and the axis of the first sub-oil passage Z11 is perpendicular to the axis X1 of the main cylinder, so as to facilitate the exhaust of the first cavity 101. Here, the horizontal plane containing the axis X1 of the main cylinder refers to the plane that is close to or passes through the axis X1 of the main cylinder and is perpendicular to the third direction.

[0089] The second sub-oil inlet Z21 is located on the third-direction side (e.g., the upper side) of the horizontal plane containing the simulator 700's axis X4, and the axis of the second sub-oil inlet Z21 is perpendicular to the master cylinder's axis X1, to facilitate exhaust from the third cavity 102. Here, the horizontal plane containing the simulator 700's axis X4 refers to a plane that is close to or passes through the simulator 700's axis X4 and is perpendicular to the third-direction. Since the simulator 700's axis X4 can coincide with the master cylinder's axis X1, therefore... Figure 9 The axis X1 of the master cylinder can represent the axis X4 of the simulator 700.

[0090] The third sub-oil passage Z31 is located on the side of the horizontal plane containing the piston pump 500 axis X3, facing a third direction (e.g., the upper side), and the axis of the third sub-oil passage Z31 is perpendicular to the axis X1 of the master cylinder, so as to facilitate exhaust from the second cavity 103. Here, the horizontal plane containing the piston pump 500 axis X3 refers to a plane that is close to or passes through the piston pump 500 axis X3 and is perpendicular to a third direction.

[0091] In some embodiments, such as Figure 9 As shown, the third plane has at least one first positioning hole 124. The first positioning hole 124 is located on the side near the hydraulic block 200 and is configured to position the hydraulic block 200. Correspondingly, the hydraulic block 200 is provided with a first positioning pin at the position corresponding to the first positioning hole 124. The first positioning pin can be inserted into the first positioning hole 124 to cooperate with the first positioning hole 124, thereby positioning the hydraulic block 200.

[0092] In some embodiments, such as Figure 11 As shown, the fourth sub-oil passage H11 is located on the third-direction side (such as the upper side) of the horizontal plane where the axis X1 of the main cylinder is located, and the axis of the fourth sub-oil passage H11 is perpendicular to the axis X1 of the main cylinder.

[0093] The fifth sub-oil passage H21 is located above the horizontal plane where the axis X1 of the main cylinder is located, and in the third direction, the axis of the fifth sub-oil passage H21 is higher than the fourth sub-oil passage H11 and perpendicular to the axis X1 of the main cylinder.

[0094] The sixth sub-oil passage H31 is located above the horizontal plane where the axis X1 of the main cylinder is located, and in the third direction, the axis of the sixth sub-oil passage H31 is higher than the fourth sub-oil passage H11 and perpendicular to the axis X1 of the main cylinder.

[0095] In some embodiments, such as Figure 6 and Figure 7 As shown, the master cylinder assembly 100 includes a first pressure-building section 110 and a second pressure-building section 120 connected together. The first pressure-building section 110 extends generally along a first direction, and a first cavity 101 and a third cavity 102 are disposed within the first pressure-building section 110. At least a portion of the second pressure-building section 120 is disposed on one side of the first pressure-building section 110 in a third direction (as shown below), and a second cavity 103 is disposed within the second pressure-building section 120. It should be noted that the axis X1 of the master cylinder can refer to the axis of the first pressure-building section 110.

[0096] In this way, by setting the pressure-building chambers (i.e., the first cavity 101 and the second cavity 103) of the master cylinder assembly 100 in different positions, the distance between the piston pump 500 and the first piston 112 in the first pressure-building section 110 can be increased, thereby reducing the vibration and noise generated when the brake assembly 10 builds up pressure and improving the service life of the brake assembly 10.

[0097] In some embodiments, the first pressure-building portion 110 and the second pressure-building portion 120 are constructed as a single unit.

[0098] In some embodiments, such as Figure 9 As shown, the master cylinder assembly 100 also has a plurality of first oil passages 123. The plurality of first oil passages 123 are located on the side of the body of the master cylinder assembly 100 away from the motor 400 (or on the side closer to the hydraulic block 200 (e.g., the right side)) and communicate with the hydraulic channels within the hydraulic block 200.

[0099] For example, the plurality of first oil passages 123 include at least the aforementioned first sub-oil passage Z11, second sub-oil passage Z21 and third sub-oil passage Z31.

[0100] In some embodiments, such as Figure 11 As shown, the master cylinder assembly 100 has a plurality of second oil passages 122. The plurality of second oil passages 122 are located on the side of the main body of the master cylinder assembly 100 near the motor 400 (as shown on the left side) and are in communication with the reservoir 600.

[0101] For example, the plurality of second oil passages 122 include at least the aforementioned fourth sub-oil passage H11, fifth sub-oil passage H21 and sixth sub-oil passage H31.

[0102] The first pressure-building section 110 in some embodiments of this disclosure is described below.

[0103] In some embodiments, such as Figure 8 As shown, the first pressure-building part 110 includes a first body 111, a first piston 112, a first spring 113, a first connecting rod 114, and a first cover 115.

[0104] The first body 111 is provided with the aforementioned first cavity 101 and third cavity 102, which are arranged at intervals generally along a first direction. For example, the first body 111 has a first blind hole 1111 and a second blind hole 1112.

[0105] The first blind hole 1111 and the second blind hole 1112 are arranged at intervals along the first direction. The first blind hole 1111 is disposed on the first side of the first body 111 in the first direction (i.e., the side of the first body 111 away from the simulator 700), and the first piston 112 is disposed in the first blind hole 1111, thereby the first blind hole 1111 forms the first cavity 101 of the master cylinder assembly 100.

[0106] In some embodiments, such as Figure 8 As shown, the first pressure-building section 110 also includes a first signal device 116. The first signal device 116 is disposed within the first piston 112. For example, the first piston 112 has a second sub-blind hole 1122 at its second end in a first direction (such as the end of the first piston 112 near the front end of the master cylinder assembly 100), and the first signal device 116 is disposed in the second sub-blind hole 1122. The first signal device 116 is matched with the first detection section 810 in the sensor 800 so that the sensor 800 detects the displacement of the first piston 112. For example, the first signal device 116 is a magnetic strip or magnetic block that can generate a magnetic field; however, this disclosure is not limited to this. The sensor 800 will be described later.

[0107] In this way, by placing the first signal device 116 inside the first piston 112, it is beneficial to reduce the overall volume of the first pressure building part 110 and the space occupied by the first signal device 116.

[0108] In some embodiments, such as Figure 8 As shown, the first pressure-building section 110 also includes a limiting plug 117. The limiting plug 117 is connected to the first end of the first connecting rod 114 and the first end of the first piston 112. For example, the limiting plug 117 is provided in the first sub-blind hole 1121, and the limiting plug 117 abuts against the first end of the first connecting rod 114 to limit the first connecting rod 114. In this way, the limiting plug 117 can achieve axial limiting of the first connecting rod 114, thereby preventing the first connecting rod 114 from disengaging axially along the first pressure-building section 110.

[0109] In some embodiments, such as Figure 8As shown, the first pressure-building section 110 also includes a dust cover 118. The dust cover 118 is disposed at the second end of the first cover 115 and covers a portion of the first connecting rod 114, such that at least a portion of the first connecting rod 114 can be located within the dust cover 118. The dust cover 118 is configured to close the connection between the first connecting rod 114 and the first cover 115 (such as the fifth through hole 1151) to prevent external impurities from entering the first pressure-building section 110.

[0110] For example, such as Figure 4 As shown, the master cylinder assembly 100 also has a first connecting hole 135 and a second connecting hole 136. The first connecting hole 135 is located on the third-direction side of the first pressure-building portion 110 and is near a first oil passage 123. The second connecting hole 136 is located on the second-direction side (e.g., the left side) of the first pressure-building portion 110 and is near a first oil passage 123. Furthermore, the motor 400 also includes at least one third connecting hole 137, which can be located at the connection surface (e.g., flange surface) between the motor 400 and the second pressure-building portion 120.

[0111] In this way, the reservoir 600 can be fixed through the first connecting hole 135, the second connecting hole 136, and the third connecting hole 137. For example, the reservoir 600 can be installed by connecting fasteners to the first connecting hole 135, the second connecting hole 136, and the third connecting hole 137 respectively.

[0112] In some embodiments, multiple components in the brake assembly 10 may be interchanged in a mirror manner, thereby enabling the brake assembly 10 to be flexibly matched to different vehicles 1000 according to the installation space of the vehicle 1000.

[0113] For example, such as Figure 12 As shown, the hydraulic block 200 is disposed on one side of the master cylinder assembly 100 in the second direction (as shown on the left), and the motor 400 is disposed on the other side of the master cylinder assembly 100 in the second direction (as shown on the right). The electronic control assembly 300 is disposed on the side of the hydraulic block 200 away from the master cylinder assembly 100 (as shown on the left). The reservoir 600 is disposed on the other side of the master cylinder assembly 100 in the second direction (as shown on the right), and is located on the side of the motor 400 in the third direction (as shown on the upper side). The simulator 700 is disposed at one end of the master cylinder assembly 100 in the first direction (as shown on the front end).

[0114] The structure of the master cylinder assembly 100, hydraulic block 200, electrical control assembly 300, motor 400, reservoir 600 and simulator 700 and their connection relationships are similar to those described above, and will not be repeated here.

[0115] In some embodiments of this disclosure, the master cylinder assembly 100 is the main body, and various components can be flexibly mounted on the master cylinder assembly 100. Each component can be directly or indirectly mounted on the master cylinder assembly 100, thereby allowing the brake assembly 10 to be flexibly adjusted in a mirror or non-mirror manner. This improves the versatility of the brake assembly 10, expands its applicability, and allows the brake assembly 10 to be flexibly matched to the front panel 31 of different vehicles 1000, increasing the selectivity of vehicle 1000 development. Furthermore, it allows selective braking of either the left or right wheel 20 of the vehicle 1000, improving the compactness of the braking system and enhancing space utilization.

[0116] In some embodiments, the second pressure-building section 120 may be omitted. For example, the braking assembly 10 includes a first pressure-building section 110, a hydraulic block 200, an electronic control component 300, a motor 400, a piston pump 500, a reservoir 600, and a simulator 700. The first pressure-building section 110, the simulator 700, and the piston pump 500 are integrated on the hydraulic block 200, and the electronic control component 300 and the motor 400 are respectively disposed on both sides of the hydraulic block 200 in a second direction. The reservoir 600 is connected to the hydraulic block 200 and is located on the side of the motor 400 in a third direction (such as the upper side).

[0117] In some embodiments, the braking assembly 10 has a first braking mode and a second braking mode. For example, the first braking mode may be a conventional braking mode; the second braking mode may be a mechanical braking mode.

[0118] In the first braking mode, when the brake pedal is depressed, the brake fluid in the first pressure-building section 110 flows to the simulator 700. The simulator 700 provides the first pressure-building section 110 with a braking feel through the reaction force of the first elastic element 590, while the sensor 800 transmits a signal to the electronic control assembly 300. Upon receiving the signal, the electronic control assembly 300 controls the motor 400 to rotate. The rotation of the motor 400 drives the piston pump 500 to move, causing the brake fluid to flow through the hydraulic passage in the second pressure-building section 120 to the hydraulic block 200. Finally, the brake fluid flows through the hydraulic passage of the hydraulic block 200 to the brake, and the brake operates to generate braking force, thereby decelerating the vehicle 1000 until it comes to a complete stop.

[0119] In the second braking mode, in the event of brake system failure or power failure, when the brake pedal is depressed, the brake fluid in the first pressure-building section 110 flows to the hydraulic block 200. This brake fluid flows directly to the brake through the hydraulic passage of the hydraulic block 200, and the brake works to generate braking force, thereby decelerating the vehicle 1000 until it comes to a complete stop.

[0120] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0121] The above description is merely a specific embodiment of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A master cylinder assembly (100), characterized in that, include: First pressure-building section (110); A plurality of first fixing parts (125) are distributed on at least one side of the axis of the first pressure building part (110); The first pressure-building part (110) has a plurality of first oil passages to connect to at least one oil circuit module, and at least one of the plurality of first oil passages (123) is disposed in the area enclosed by the plurality of first fixing parts (125).

2. The master cylinder assembly (100) according to claim 1, characterized in that, The lines connecting at least three of the plurality of first fixing parts (125) form a triangle, and at least one of the plurality of first oil passages (123) is located in the triangle.

3. The master cylinder assembly (100) according to claim 2, characterized in that, The plurality of first oil passages (123) are all located within the circumcircle of the triangle.

4. The master cylinder assembly (100) according to claim 2 or 3, characterized in that, The triangle satisfies one of the following: The triangle is a right-angled or obtuse-angled triangle; The triangle is a right-angled or obtuse-angled triangle, and is an isosceles triangle; The triangle is an isosceles triangle; The triangle is an equilateral triangle.

5. The master cylinder assembly (100) according to claim 1, characterized in that, The master cylinder (100) also includes: A first cavity (101) is provided in the first pressure-building section (110), and a first piston (112) is provided in the first cavity (101) to form hydraulic pressure. The first cavity (101) is connected to the first oil passage (123).

6. The master cylinder assembly (100) according to claim 1, characterized in that, The first pressure-building section (110) has a plurality of second oil passages (122) to connect to the reservoir (600), and the opening direction of the second oil passages (122) is opposite to that of the first oil passage (123).

7. The master cylinder assembly (100) according to claim 6, characterized in that, The second oil passage (122) and the first oil passage (123) are located on both sides of the axis of the first pressure building part (110).

8. The master cylinder assembly (100) according to claim 6, characterized in that, The opening direction of the second oil passage (122) is perpendicular to the axial direction of the first pressure-building part (110).

9. The master cylinder assembly (100) according to claim 1, characterized in that, A sealing groove is provided inside the first oil passage, and a sealing element is provided inside the sealing groove.

10. A braking assembly (10), characterized in that, Includes the master cylinder assembly (100) as described in any one of claims 1-9.

11. The braking assembly (10) according to claim 9, characterized in that, It also includes a hydraulic block (200), which includes a plurality of second fixing parts disposed on the side of the body of the hydraulic block (200) near the master cylinder (100); The plurality of first fixing parts (125) are respectively connected to the plurality of second fixing parts so that the main cylinder (100) is connected to the hydraulic block (200); At least one of the plurality of first oil passages (123) is disposed within the area enclosed by the plurality of second fixing parts.

12. The braking assembly (10) according to claim 9, characterized in that, It also includes a liquid reservoir, wherein the first pressure-building part (110) has a plurality of second oil passages (122) that are connected to the liquid reservoir.

13. A vehicle (1000), comprising: Vehicle body (30); Wheels (20) are connected to the vehicle body (30); and The braking assembly (10) according to any one of claims 10-12 is connected between the vehicle body (30) and the wheel (20).

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