Brake master cylinder assembly, braking system and vehicle

Abstract

This disclosure relates to a brake master cylinder assembly, a braking system, and a vehicle. The brake master cylinder assembly includes: a main body comprising a first region and a second region, the first region forming a first cavity to accommodate a piston pump, and the second region forming a second cavity to accommodate a master cylinder piston; and a mounting channel formed in the main body for accommodating at least a portion of a sensor assembly, the mounting channel being disposed on the outer peripheral wall of the first cavity. Disposing the mounting channel for accommodating the sensor assembly on the outer peripheral wall of the first cavity saves internal space within the cavity, facilitating subsequent maintenance of the sensor assembly or the piston pump and master cylinder piston within the cavity, and reducing assembly and maintenance difficulty. Furthermore, the mounting channel being located within the first cavity effectively utilizes the space around the outer periphery of the first cavity, resulting in a more compact and integrated braking system structure.

Description

Technical Field

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

[0002] Sensors are installed in the brake master cylinder of the braking system to identify operating information of the internal components, such as speed or displacement, in order to perform control based on the speed information. The brake master cylinder has a complex structure, and the arrangement of its various components and sensors is quite difficult. Therefore, there is an urgent need to provide a brake master cylinder assembly that can be rationally arranged. Summary of the Invention

[0003] The purpose of this disclosure is to provide a brake master cylinder assembly, a braking system, and a vehicle to at least partially solve the problems existing in the related art.

[0004] To achieve the above objectives, this disclosure provides a brake master cylinder assembly, comprising: a body including a first region and a second region, the first region having a first cavity for accommodating a piston pump, the second region having a second cavity for accommodating a master cylinder piston; and a mounting channel formed in the body for accommodating at least a portion of a sensor assembly, the mounting channel being disposed on the outer peripheral wall of the cavity wall of the first cavity.

[0005] Optionally, the extension direction of the mounting channel is parallel to the extension direction of the first cavity.

[0006] Optionally, the sensor assembly includes multiple sensors for acquiring operating information of the piston pump and / or the master cylinder piston, and the mounting channels have multiple channels to accommodate multiple sensors, with the multiple mounting channels arranged in parallel.

[0007] Optionally, the installation channel is located in the first area.

[0008] Optionally, the brake master cylinder assembly includes a wiring channel formed in the body for the piston pump wiring harness to pass through, the wiring channel being located in the first region.

[0009] Optionally, the mounting channel and the wire passage are arranged circumferentially around the first cavity.

[0010] Optionally, the extension direction of the mounting channel and the wire passage is parallel to the extension direction of the first cavity.

[0011] Optionally, the sensor assembly includes a first sensor for acquiring operating information of the master cylinder piston, the first sensor extending from the first region to the second region to be close to the second cavity.

[0012] Optionally, the first sensor extends to the outer wall of the second cavity.

[0013] Optionally, the first sensor includes a first segment and a second segment, the first segment extending along the outer wall of the first cavity in the same direction as the first cavity, and the second segment extending from one end of the first segment near the second cavity to the outer wall of the second cavity.

[0014] Optionally, the first sensor includes a third segment that extends from one end of the second segment near the second cavity along the outer wall of the second cavity.

[0015] Optionally, the sensor assembly includes a second sensor for acquiring operating information of the piston pump, the second sensor extending to one end of the body for connecting to the motor housing of the piston pump.

[0016] Optionally, one end of the main body for connecting to the motor housing has an opening structure, and the second sensor extends to the opening structure for communicating with the motor housing.

[0017] Optionally, the extending direction of the first cavity is perpendicular to the extending direction of the second cavity.

[0018] Optionally, the first cavity extends along a first direction, the second cavity extends along a second direction, the first region is located on one side of the second region along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

[0019] Optionally, the body has a hydraulic connection surface for connecting hydraulic components, the hydraulic connection surface being located in a portion of the first region and a portion of the second region.

[0020] Optionally, the hydraulic connection surface is configured to be parallel to the extension direction of the second cavity and perpendicular to the extension direction along the first cavity.

[0021] Optionally, the second region includes a plurality of liquid outlet channels corresponding to the hydraulic connection surface to connect the interior of the main body with the hydraulic component. The liquid outlet channels are configured to be perpendicular to the extension direction of the second cavity and parallel to the extension direction of the first cavity.

[0022] Optionally, a hydraulic pipeline is formed inside the main body, the liquid outlet channel is connected to the hydraulic pipeline, and the hydraulic pipeline is connected to the second cavity and the first cavity respectively.

[0023] Optionally, the first region includes a wire passage corresponding to the hydraulic connection surface for the piston pump wiring harness to pass through, and the end face of the wire passage is flush with the end face of at least a portion of the liquid outlet channel.

[0024] Optionally, at least a portion of the outer wall of the first cavity is formed with a clearance surface to avoid the hydraulic assembly.

[0025] Optionally, at least a portion of the clearance surface is configured as a plane to match the outer contour of the hydraulic assembly.

[0026] Optionally, the second region is provided with a liquid supply connection surface for connecting a liquid supply assembly.

[0027] Optionally, the liquid supply connection surface is configured to be parallel to the extension direction of the second cavity and parallel to the extension direction along the first cavity.

[0028] Optionally, the second region includes a liquid inlet channel corresponding to the liquid supply connection surface to connect the interior of the main body with the liquid supply assembly. The liquid inlet channel is configured to be perpendicular to the extension direction of the second cavity and perpendicular to the extension direction of the first cavity.

[0029] Optionally, a hydraulic pipeline is formed inside the main body, the inlet channel is connected to the hydraulic pipeline, and the hydraulic pipeline is connected to the second cavity and the first cavity respectively.

[0030] According to a second aspect of the present disclosure, a braking system is provided, including a piston pump, a master cylinder piston, a sensor assembly, and a brake master cylinder assembly provided in the present disclosure.

[0031] According to a third aspect of the present disclosure, a vehicle is provided, including the braking system provided in the present disclosure.

[0032] By using the above technical solution, the mounting channel for housing the sensor assembly is located on the outer peripheral wall of the first cavity, which saves internal space of the cavity and facilitates subsequent maintenance of the sensor assembly or the piston pump and master cylinder piston within the cavity, reducing assembly and maintenance difficulty. Furthermore, the mounting channel's location within the first cavity effectively utilizes the space around its outer periphery, resulting in a more compact and integrated braking system structure.

[0033] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0034] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0035] Figure 1 This is a schematic diagram of the connection between the brake master cylinder assembly and the piston pump according to an exemplary embodiment of the present disclosure.

[0036] Figure 2 This is a schematic diagram of a piston pump provided according to an exemplary embodiment of the present disclosure.

[0037] Figure 3 This is a frontal projection view of the connection between the brake master cylinder assembly and the piston pump according to an exemplary embodiment of the present disclosure.

[0038] Figure 4 It is along Figure 3 A cross-sectional view cut by section AA.

[0039] Figure 5 It is along Figure 3 A cross-sectional view of the BB section.

[0040] Explanation of reference numerals in the attached figures

[0041] 100-Main body, 101-Opening structure, 102-Hydraulic connection surface, 103-Liquid supply connection surface, 110-First area, 111-First cavity, 112-Installation channel, 113-Wire passage channel, 114-Liquid outlet channel, 115-Avoidance surface, 116-Liquid inlet channel, 120-Second area, 121-Second cavity, 200-Sensor assembly, 210-First sensor, 211-First segment, 212-Second segment, 213-Third segment, 220-Second sensor, 2-Piston pump, 20-Motor, 21-Wire harness, 22-Motor housing, 23-Hall effect magnetic ring. Detailed Implementation

[0042] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0043] In this disclosure, unless otherwise stated, directional terms such as "inner" and "outer" refer to the inner and outer contours of the corresponding components. The inner wall of a cavity refers to the inner wall of the structure that forms the cavity, and the outer wall of a cavity refers to the outer periphery of the cavity wall. "First" and "second" are used to distinguish one element from another and do not indicate order or importance.

[0044] Reference Figures 1 to 5As shown, this embodiment of the present disclosure provides a brake master cylinder assembly, including a main body 100 and a mounting channel 112 formed on the main body 100. The main body 100 includes a first region 110 and a second region 120. The first region 110 forms a first cavity 111 to accommodate a piston pump 2, and the second region 120 forms a second cavity 121 to accommodate a master cylinder piston (not shown in the figure). Dividing the first cavity 111 and the second cavity 121 into two regions avoids mutual interference, and since they are formed on the same main body 100, the structure is compact and the integration is improved. The mounting channel 112 is used to accommodate at least a portion of a sensor assembly 200, such as for accommodating the first segment 211 of the first sensor 210 and the second sensor 220 described below. The sensor assembly 200 can be used to acquire operating information of the master cylinder piston and / or the piston pump 2, that is, to acquire the working state within the first cavity 111 and / or the second cavity 121. The mounting channel 112 is located on the outer periphery of the cavity wall of the first cavity 111. In other words, the sensor assembly 200 can be mounted on the outer periphery of the cavity wall of the first cavity 111.

[0045] By employing the aforementioned technical solution, the mounting channel 112 for housing the sensor assembly 200 is positioned on the outer peripheral wall of the first cavity 111. This saves internal space within the cavity, facilitating subsequent maintenance of the sensor assembly 200 or the piston pump 2 and master cylinder piston within the cavity, and reducing assembly and maintenance difficulty. Furthermore, the mounting channel 112's location within the first cavity 111 effectively utilizes the space around the outer periphery of the first cavity 111, resulting in a more compact and integrated braking system structure.

[0046] Reference Figure 3 and Figure 4 The extension direction of the installation channel 112 can be parallel to the extension direction of the first cavity 111, so that the installation channel 112 can be arranged more compactly with the first cavity 111, avoiding low space utilization caused by the misalignment between the two.

[0047] In this embodiment, the sensor assembly 200 may include multiple sensors that can perform various functions, such as acquiring operating information of the piston pump 2 and / or the master cylinder piston. For example, it may include two sensors: one for acquiring the rotational speed information of the motor 20 of the piston pump 2, and the other for acquiring the displacement information of the master cylinder piston. The mounting channels 112 may also have multiple channels to accommodate multiple sensors. For example, in the case of two sensors, there may be two mounting channels 112, each accommodating one sensor, spaced apart to prevent interference. The multiple mounting channels 112 may be arranged parallel to each other to achieve a compact layout, reduce the overall volume of the brake master cylinder assembly, and improve integration.

[0048] In this embodiment of the disclosure, reference is made to Figure 3 The installation channel 112 can be located in the first area 110, so that the installation channel 112 does not occupy the second area 120, thereby avoiding interference with components near the second area 120, such as hydraulic components or fluid supply components, and improving the space utilization of the first area 110.

[0049] The brake master cylinder assembly may include a wiring channel 113, which allows the wiring harness 21 of the piston pump 2 to pass through. The wiring harness 21 may be the three-phase wires of the motor 20 of the piston pump 2. Figure 3 As shown, the wiring channel 113 can be located in the first region 110. Since the first chamber 111 for accommodating the piston pump 2 is located in the first region 110, the location of the wiring channel 113 in the first region 110 can minimize the distance of the wiring harness 21. Furthermore, the wiring channel 113 can also avoid occupying the second region 120, thus avoiding interference with components near the second region 120, such as hydraulic components or fluid supply components, and improving the space utilization of the first region 110.

[0050] Combination Figure 2 and Figure 3 The installation channel 112 and the wire passage channel 113 can be arranged around the circumference of the first cavity 111, so that the installation channel 112 and the wire passage channel 113 are compactly arranged around the circumference of the first cavity 111, avoiding large space occupation in one direction and making the structure uniformly distributed.

[0051] The extension directions of the mounting channel 112 and the wire passage channel 113 can both be parallel to the extension direction of the first cavity 111, so that the mounting channel 112 and the wire passage channel 113 can be arranged more compactly with the first cavity 111, avoiding low space utilization caused by the misalignment between them.

[0052] According to one embodiment of this disclosure, the sensor assembly 200 may include a first sensor 210. The first sensor 210 is used to acquire the operating information of the master cylinder piston. For example, the first sensor 210 may be a displacement sensor to acquire the positional displacement information of the master cylinder piston in the second cavity 121. A transmitter of the displacement sensor may be provided on the master cylinder piston, and a receiver located in the sensor is accommodated in the mounting channel 112. Here, the first sensor 210 refers to the receiver. The first sensor 210 may extend from the first region 110 to the second region 120 to be close to the second cavity 121 in order to accurately acquire the displacement information of the master cylinder piston in the second cavity 121. The mounting channel 112 of the first sensor 210 may be set closer to the second region 120 than other parts of the structure to make it easier to approach the second cavity 121. The first sensor 210 may extend to the second region 120 in such a way that the first sensor 210 extends parallel to the first cavity 111 in the region of the outer peripheral wall of the first cavity 111, and a cavity is opened in the region extending into the body 100 to allow the first sensor 210 to approach the master cylinder piston. Of course, it is understandable that the mounting channel 112 of the first sensor 210 can also be configured to extend obliquely from the first region 110 to the second region 120 on the outer peripheral wall of the first cavity 111.

[0053] In this embodiment of the present disclosure, the first sensor 210 can be configured to extend to the outer wall of the second cavity 121. In this way, the first sensor 210 and the sensor transmitter installed inside the second cavity 121 can be separated only by the cavity wall of the second cavity 121, without any other structures, thereby ensuring the accuracy of detection.

[0054] In one embodiment, such as Figure 5 As shown, the first sensor 210 may include a first segment 211 and a second segment 212. The first segment 211 may extend along the outer wall of the first cavity 111 in the same direction as the first cavity 111, and the second segment 212 may extend from one end of the first segment 211 near the second cavity 121 to the outer wall of the second cavity 121. By configuring the first sensor 210 into two segments, it extends to the outer wall of the second cavity 121, thereby approaching the transmitter inside the second cavity 121.

[0055] Reference Figure 5 The first sensor 210 may further include a third segment 213, which extends from one end of the second segment 212 near the second cavity 121 along the outer wall of the second cavity 121 to maintain it on the outer wall of the second cavity 121 and ensure its detection accuracy. The portion of the outer wall of the second cavity 121 used for mounting the third segment 213 may be constructed as a flat surface to facilitate the stable mounting of the third segment 213. The third segment 213 may also be mounted on this outer wall using a fixing structure.

[0056] In this embodiment of the present disclosure, the transmitter of the first sensor 210 can be arranged along the second direction, and the mounting direction of the first sensor 210 can be perpendicular to the mounting direction of the transmitter, so that the detection structure can be arranged in different directions, avoiding the large space occupied by arranging it in one direction, making the structure of the brake master cylinder assembly compact and improving the integration.

[0057] According to one embodiment of this disclosure, referring to Figure 4 As shown, the sensor assembly 200 may include a second sensor 220, which is used to acquire operating information of the piston pump 2. For example, the second sensor 220 may be a speed sensor used to acquire the speed of the motor 20 of the piston pump 2. One end of the main body 100 is used to connect to the motor housing 22 of the motor 20, and the second sensor 220 may extend to the end of the main body 100 used to connect to the motor housing 22 of the piston pump 2, so as to be close to the motor 20 inside the motor housing 22.

[0058] An opening structure 101 can be formed at one end of the main body 100 for connecting to the motor housing 22. The second sensor 220 can extend to the opening structure 101, which is used to communicate with the motor housing 22. A Hall magnetic ring can be provided on the rotor of the motor 20 inside the motor housing 22. By extending the second sensor 220 to the opening structure 101 communicating with the motor housing 22, the second sensor 220 and the Hall magnetic ring 23 are not obstructed, thereby obtaining the rotational speed information of the motor 20 through changes in the magnetic field.

[0059] In one embodiment of this disclosure, the extending direction of the first cavity 111 is perpendicular to the extending direction of the second cavity 121. The vertical arrangement facilitates the integration of the braking system and the arrangement of other components such as hydraulic components.

[0060] Combination Figures 1 to 5 The first cavity 111 can extend along a first direction, and the second cavity 121 can extend along a second direction. The first region 110 can be located on one side of the second region 120 along a third direction, with the first direction, second direction, and third direction being perpendicular to each other. This vertical arrangement makes the layout more compact and regular, facilitating the connection of the brake master cylinder assembly with other structures. For example, the motor housing 22 can be connected to one side of the brake master cylinder assembly along the first direction, the hydraulic components described later can be connected to one side of the brake master cylinder assembly along the first direction and arranged opposite to the motor housing 22, and the fluid supply component can be located on one side of the brake master cylinder assembly along a third direction, such as on the side of the second region 120 opposite to the first region 110.

[0061] The braking system includes a hydraulic assembly, which is connected to the brake master cylinder assembly. (See reference...) Figure 1 and Figure 3 A hydraulic connection surface 102 can be formed on the main body 100 for connecting a hydraulic component. The hydraulic connection surface 102 occupies a portion of the first region 110 and a portion of the second region 120. The hydraulic component is used to communicate with the first cavity 111 located in the first region 110 and the second cavity 121 located in the second region 120. Setting the hydraulic connection surface of the hydraulic component in the portion occupying the two regions facilitates its communication with the corresponding cavities and shortens the communication path.

[0062] The hydraulic connection surface 102 can be configured to be parallel to the extending direction of the second cavity 121 and perpendicular to the extending direction along the first cavity 111. Figure 3 In the embodiment shown, the hydraulic connection surface 102 is in the plane communicating between the second and third directions. It can be installed in the empty space between the first region 110 and the second region 120, which makes the layout compact and highly integrated.

[0063] The second region 120 includes a plurality of outlet channels 114 corresponding to the hydraulic connection surface 102, for communicating the interior of the main body 100 with the hydraulic components. The outlet channels 114 are configured to be perpendicular to the extension direction of the second cavity 121 and parallel to the extension direction of the first cavity 111. The end face of the outlet of the outlet channel 114 forms the hydraulic connection surface 102, so that the hydraulic connection surface 102 can be arranged in the orientation described above.

[0064] The main body 100 has a hydraulic pipeline inside, the liquid outlet 114 is connected to the hydraulic pipeline, and the hydraulic pipeline is connected to the second cavity 121 and the first cavity 111 respectively, so as to realize the connection between the first cavity 111 and the second cavity 121 and the hydraulic component through the hydraulic pipeline.

[0065] The first region 110 includes a wire passage 113 corresponding to the hydraulic connection surface 102, for the wire harness 21 of the piston pump 2 to pass through. The end face of the wire passage 113 is flush with the end face of at least part of the liquid outlet channel 114, so that the end face of the wire passage 113 and the end face of the liquid outlet channel 114 together form a smooth hydraulic connection surface 102, avoiding the wire passage 113 from affecting the arrangement of hydraulic components.

[0066] Reference Figure 1 and Figure 3 At least a portion of the outer wall of the first cavity 111 is formed with a clearance surface 115 to allow the hydraulic components to pass through, so that the hydraulic components can have sufficient installation space for installation.

[0067] The clearance surface 115 can be configured to match the outer contour of the hydraulic component, so that the clearance surface 115 can be fitted to the hydraulic component to improve space utilization. In this embodiment of the present disclosure, the outer contour of the hydraulic component is configured as a screen, and at least a portion of the clearance surface 115 can be configured as a plane to match the outer contour of the hydraulic component.

[0068] Reference Figure 1 and Figure 3 The second area 120 may be provided with a liquid supply connection surface 103 for connecting a liquid supply component, such as an oil reservoir. The liquid supply component is located in the second area 120 to separate it from the installation channel 112 and the wiring channel 113, so as to avoid interference between them.

[0069] The liquid supply connection surface 103 is configured to be parallel to the extension direction of the second cavity 121 and parallel to the extension direction along the first cavity 111, so that it is set on a different side from the hydraulic connection surface 103, and the various components are arranged in various directions to avoid the size being too large in a single direction.

[0070] Reference Figure 1 and Figure 3 The second region 120 includes a liquid inlet channel 116 corresponding to the liquid supply connection surface 103, which connects the interior of the main body 100 with the liquid supply assembly. The liquid inlet channel 116 is configured to be perpendicular to the extension direction of the second cavity 121 and perpendicular to the extension direction of the first cavity 111. The end face at the opening of the liquid inlet channel 116 forms the liquid supply connection surface 103, allowing the liquid supply connection surface 103 to be arranged in the orientation described above.

[0071] The main body 100 has a hydraulic pipeline inside, the inlet channel 116 is connected to the hydraulic pipeline, and the hydraulic pipeline is connected to the second cavity 121 and the first cavity 111 respectively, so as to realize the connection between the liquid supply component and the first cavity 111 and the second cavity 121 through the hydraulic pipeline.

[0072] According to a second aspect of the present disclosure, a braking system is provided, including a piston pump 2, a master cylinder piston, a sensor assembly 200, and the aforementioned master cylinder assembly. This braking system possesses all the beneficial effects of the aforementioned master cylinder assembly, which will not be elaborated further here. The braking system may further include a hydraulic assembly and a fluid supply assembly for communication with the master cylinder assembly.

[0073] According to a third aspect of the present disclosure, a vehicle is provided that includes the braking system provided in the present disclosure and has all the beneficial effects of the braking system described above, which will not be repeated here.

[0074] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0075] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0076] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A brake master cylinder assembly, characterized in that, include: The main body includes a first region and a second region, wherein the first region forms a first cavity to accommodate the piston pump, and the second region forms a second cavity to accommodate the master cylinder piston. as well as A mounting channel is formed in the body for accommodating at least a portion of the sensor assembly, the mounting channel being disposed on the outer peripheral wall of the first cavity. The sensor assembly includes a first sensor for acquiring the operating information of the master cylinder piston. The first sensor extends from the first region to the second region to be close to the second cavity. The first sensor includes a first segment and a second segment. The first segment extends along the outer wall of the first cavity in the same direction as the first cavity, and the second segment extends from the end of the first segment close to the second cavity to the outer wall of the second cavity.

2. The brake master cylinder assembly according to claim 1, characterized in that, The extension direction of the installation channel is parallel to the extension direction of the first cavity.

3. The brake master cylinder assembly according to claim 1, characterized in that, The sensor assembly includes multiple sensors for acquiring operating information of the piston pump and / or the master cylinder piston. The mounting channels have multiple locations to accommodate multiple sensors, and the multiple mounting channels are arranged in parallel.

4. The brake master cylinder assembly according to claim 1, characterized in that, The installation channel is located in the first area.

5. The brake master cylinder assembly according to claim 1, characterized in that, The brake master cylinder assembly includes a wiring channel formed in the body for the passage of the piston pump wiring harness, the wiring channel being located in the first region.

6. The brake master cylinder assembly according to claim 5, characterized in that, The installation channel and the wire passage are arranged circumferentially around the first cavity.

7. The brake master cylinder assembly according to claim 5, characterized in that, The installation channel and the wire-passing channel extend in a direction parallel to the extension direction of the first cavity.

8. The brake master cylinder assembly according to claim 1, characterized in that, The first sensor includes a third segment that extends from one end of the second segment near the second cavity along the outer wall of the second cavity.

9. The brake master cylinder assembly according to claim 1, characterized in that, The sensor assembly includes a second sensor for acquiring operating information of the piston pump, and the second sensor extends to one end of the main body for connecting to the motor housing of the piston pump.

10. The brake master cylinder assembly according to claim 9, characterized in that, The main body has an opening structure at one end for connecting to the motor housing, and the second sensor extends to the opening structure for communicating with the motor housing.

11. The brake master cylinder assembly according to claim 1, characterized in that, The extension direction of the first cavity is perpendicular to the extension direction of the second cavity.

12. The brake master cylinder assembly according to claim 11, characterized in that, The first cavity extends along a first direction, the second cavity extends along a second direction, the first region is located on one side of the second region along a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

13. The brake master cylinder assembly according to claim 1, characterized in that, The main body has a hydraulic connection surface for connecting hydraulic components, and the hydraulic connection surface is located in a portion of the first region and a portion of the second region.

14. The brake master cylinder assembly according to claim 13, characterized in that, The hydraulic connection surface is configured to be parallel to the extension direction of the second cavity and perpendicular to the extension direction along the first cavity.

15. The brake master cylinder assembly according to claim 13, characterized in that, The second region includes a plurality of liquid outlet channels corresponding to the hydraulic connection surface, so as to connect the interior of the main body with the hydraulic component. The liquid outlet channels are configured to be perpendicular to the extension direction of the second cavity and parallel to the extension direction of the first cavity.

16. The brake master cylinder assembly according to claim 15, characterized in that, The main body has a hydraulic pipeline inside, the liquid outlet channel is connected to the hydraulic pipeline, and the hydraulic pipeline is connected to the second cavity and the first cavity respectively.

17. The brake master cylinder assembly according to claim 15, characterized in that, The first region includes a wire passage corresponding to the hydraulic connection surface, for the piston pump wiring harness to pass through, and the end face of the wire passage is flush with the end face of at least a portion of the liquid outlet channel.

18. The brake master cylinder assembly according to claim 13, characterized in that, At least a portion of the outer wall of the first cavity is formed with a clearance surface to avoid the hydraulic assembly.

19. The brake master cylinder assembly according to claim 18, characterized in that, At least a portion of the avoidance surface is constructed as a plane to match the outer contour of the hydraulic assembly.

20. The brake master cylinder assembly according to claim 1, characterized in that, The second area is provided with a liquid supply connection surface for connecting the liquid supply assembly.

21. The brake master cylinder assembly according to claim 20, characterized in that, The liquid supply connection surface is configured to be parallel to the extension direction of the second cavity and parallel to the extension direction along the first cavity.

22. The brake master cylinder assembly according to claim 20, characterized in that, The second region includes a liquid inlet channel corresponding to the liquid supply connection surface, so as to connect the interior of the main body with the liquid supply assembly. The liquid inlet channel is configured to be perpendicular to the extension direction of the second cavity and perpendicular to the extension direction of the first cavity.

23. The brake master cylinder assembly according to claim 22, characterized in that, The main body has a hydraulic pipeline inside, the inlet channel is connected to the hydraulic pipeline, and the hydraulic pipeline is connected to the second cavity and the first cavity respectively.

24. A braking system, characterized in that, It includes a piston pump, a master cylinder piston, a sensor assembly, and a brake master cylinder assembly according to any one of claims 1-23.

25. A vehicle, characterized in that, Includes the braking system according to claim 24.

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