CN117698674A - Hydraulic valve and braking system with same - Google Patents

Hydraulic valve and braking system with same Download PDF

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Publication number
CN117698674A
CN117698674A CN202311758689.XA CN202311758689A CN117698674A CN 117698674 A CN117698674 A CN 117698674A CN 202311758689 A CN202311758689 A CN 202311758689A CN 117698674 A CN117698674 A CN 117698674A
Authority
CN
China
Prior art keywords
mounting
hole
mounting portion
unit
valve body
Prior art date
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Pending
Application number
CN202311758689.XA
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Chinese (zh)
Inventor
刘富庆
范鹏
于鑫
何世全
杜立新
高昌晟
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Nasn Automotive Electronics Co Ltd
Original Assignee
Nasn Automotive Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nasn Automotive Electronics Co Ltd filed Critical Nasn Automotive Electronics Co Ltd
Priority to CN202311758689.XA priority Critical patent/CN117698674A/en
Publication of CN117698674A publication Critical patent/CN117698674A/en
Pending legal-status Critical Current

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  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

The application discloses hydraulic valve for braking system of car, this hydraulic valve includes the valve body, the valve body is formed with the first installation department that is used for installing braking system's liquid storage pot, be used for installing the second installation department of footboard input unit and master cylinder, be used for installing the footboard and feel the third installation department of analog unit and automatically controlled unit, and be used for installing the fourth installation department of building the pressure unit, first installation department sets up in the one end of valve body, the second installation department sets up the other end adjacent with first installation department on the valve body, third installation department sets up respectively in the both sides of valve body and all adjacent with first installation department and second installation department with fourth installation department. The application also discloses a braking system with the hydraulic valve.

Description

Hydraulic valve and braking system with same
Technical Field
The invention belongs to the technical field of automobile braking, and particularly relates to a hydraulic valve and a braking system with the hydraulic valve.
Background
In recent years, with the accelerated development of electric and intelligent automobiles, more requirements are put on a wire control chassis, wherein the development period of a chassis system is shorter, the matching and response capabilities are better, the cost advantage is achieved, and the like, so that the wire control chassis has become a new trend of the development of the chassis system. Accordingly, those skilled in the art have focused on developing a hydraulic valve that has significant advantages in terms of performance, function, volume, weight, cost, etc., over the current industry of like products.
Disclosure of Invention
An object of the present invention is to provide a hydraulic valve which can overcome the disadvantages of the prior art, such as large volume, heavy weight, and incomplete functions; it is another object of the present invention to provide a brake system having the hydraulic valve.
In order to achieve the above technical object, a first aspect of the present invention provides a hydraulic valve for a brake system of an automobile, the hydraulic valve including a valve body formed with a first mounting portion for mounting a reservoir tank of the brake system, a second mounting portion for mounting a pedal input unit and a master cylinder, a third mounting portion for mounting a pedal feel simulation unit and an electric control unit, and a fourth mounting portion for mounting a pressure build-up unit, the first mounting portion being provided at one end of the valve body, the second mounting portion being provided at the other end of the valve body adjacent to the first mounting portion, the third mounting portion and the fourth mounting portion being provided at both sides of the valve body and adjacent to both the first mounting portion and the second mounting portion, respectively.
Preferably, the first mounting portion is provided with a fluid-supplementing hole along a first direction for communicating with the fluid reservoir, the fourth mounting portion is provided with a fluid-outlet hole along a second direction for communicating with the fluid-supplementing hole, and the second direction is perpendicular to the first direction.
Preferably, the second mounting portion is provided with a plunger hole penetrating the master cylinder along a third direction, the plunger hole is communicated with the fluid replacement hole, and the third direction is perpendicular to the first direction and the second direction.
Preferably, the inner wall of the top of the plunger hole is provided with a first air discharge groove and a second air discharge groove extending along the third direction, and the inner wall of the bottom of the plunger hole is provided with a third air discharge groove extending along the third direction.
Preferably, the inner wall of the plunger hole is further provided with a first sealing groove along the circumferential direction of the inner wall thereof for forming a first sealing cavity with the master cylinder.
Preferably, the third mounting portion is provided with a pedal sensing simulation unit mounting hole along the second direction for mounting the pedal sensing simulation unit and a solenoid valve mounting hole for connecting with a solenoid valve of the electronic control unit, the pedal sensing simulation unit mounting hole is communicated with the fluid supplementing hole, and the solenoid valve mounting hole is communicated with the fluid supplementing hole and the fluid outlet hole.
Preferably, a fourth exhaust groove extending along the second direction is formed in the top inner wall of the pedal feel simulation unit mounting hole, and a fifth exhaust groove extending along the second direction is formed in the bottom inner wall.
Preferably, the fourth mounting portion is provided with a pressure building unit mounting hole extending along the second direction for mounting the pressure building unit, and the pressure building unit mounting hole penetrates through the hydraulic valve and is communicated with the fluid supplementing hole and the fluid outlet hole.
Preferably, a sixth exhaust groove extending along the second direction is formed in the top inner wall of the pressure building unit mounting hole.
A second aspect of the present invention provides a brake system including a reservoir tank, a pedal input unit, a master cylinder, a pedal feel simulation unit, an electric control unit, a pressure build unit, and a hydraulic valve as described in the above-described aspects of the brake system of an automobile, the reservoir tank, the pedal input unit, the master cylinder, the pedal feel simulation unit, and the electric control unit, and the pressure build unit being assembled on and in communication with a valve body of the hydraulic valve through first, second, third, and fourth mounting portions on the valve body, respectively.
In summary, the invention has the following beneficial effects:
the invention discloses a hydraulic valve, which is used for a braking system of an automobile, wherein a valve body of the hydraulic valve is provided with a first mounting part for mounting a liquid storage tank of the braking system, a second mounting part for mounting a pedal input unit and a main cylinder, a third mounting part for mounting a pedal sensing simulation unit and an electric control unit and a fourth mounting part for mounting a pressure building unit, wherein the first mounting part is arranged at one end of the valve body, the second mounting part is arranged at the other end of the valve body adjacent to the first mounting part, the third mounting part and the fourth mounting part are respectively arranged at two sides of the valve body and adjacent to the first mounting part and the second mounting part, and mounting holes, sealing grooves and exhaust grooves are reasonably arranged on the first mounting part, the second mounting part, the third mounting part and the fourth mounting part of the valve body.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a valve body of a hydraulic valve according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view of the valve body shown in FIG. 1 from a top view;
FIG. 3 is a schematic view of the valve body shown in FIG. 1 from a right view;
FIG. 4 is a schematic cross-sectional view of the valve body of FIG. 3 in the direction A-A;
FIG. 5 is a schematic view of the valve body of FIG. 1 from a rear view perspective;
FIG. 6 is a schematic cross-sectional view of the valve body of FIG. 5 in the direction B-B;
FIG. 7 is a schematic view of the valve body of FIG. 1 from a front view;
FIG. 8 is a schematic cross-sectional view of the valve body of FIG. 7 in the direction C-C;
FIG. 9 is a schematic cross-sectional view of the valve body of FIG. 7 in the direction D-D;
FIG. 10 is a schematic view of the valve body of FIG. 1 from a bottom view;
FIG. 11 is a schematic view of the valve body of FIG. 1 from a left view perspective;
fig. 12 is a schematic diagram showing an assembled structure of the valve body shown in fig. 1 and a reservoir, a pedal input unit, a master cylinder, a pedal feel simulation unit, an electric control unit, and a pressure building unit of a brake system of an automobile.
Reference numerals illustrate:
1. a liquid storage tank; 2. a pedal input unit; 3. a master cylinder; 4. a pedal feel simulation unit; 5. an electric control unit; 6. a pressure building unit; 7. a valve body;
71. a first mounting portion; 72. a second mounting portion; 73. a third mounting portion; 74. a fourth mounting portion; 75. a fifth mounting portion; 76. a sixth mounting portion;
711. a fluid supplementing hole;
721. a plunger hole; 722. a first exhaust groove; 723. a second exhaust groove; 724. a third exhaust groove; 725. a first seal groove;
731. pedal feel simulation unit mounting holes; 732. a solenoid valve mounting hole; 733. a fourth exhaust groove; 734. a fifth exhaust groove; 735. a second seal groove; 736. pedal position sensor mounting slots; 737. a master cylinder pressure sensor mounting hole; 738. building a pressure sensor mounting hole;
741. a liquid outlet hole; 742. building a mounting hole of the pressure unit; 743. a sixth exhaust groove; 744. a third seal groove; 745. a motor position sensor mounting hole;
751. a first liquid storage hole;
761. and a second liquid storage hole.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms described above will be understood to those of ordinary skill in the art in a specific context.
The terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," and the like are used as references to orientations or positional relationships based on the orientation or positional relationships shown in the drawings, or the orientation or positional relationships in which the inventive product is conventionally disposed in use, merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore are not to be construed as limiting the invention.
The terms "first," "second," "third," and the like, are merely used for distinguishing between similar elements and not necessarily for indicating or implying a relative importance or order.
The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a list of elements does not include only those elements but may include other elements not expressly listed.
Referring to fig. 1, 5 and 12, a valve body of a hydraulic valve for a brake system of an automobile according to an embodiment of the present invention is provided, wherein the valve body 7 is formed with a first mounting portion 71 for mounting a reservoir 1, a second mounting portion 72 for mounting a pedal input unit 2 and a master cylinder 3 (not shown), a third mounting portion 73 for mounting a pedal feel simulation unit 4 (not shown) and an electronic control unit 5, and a fourth mounting portion 74 for mounting a pressure building unit 6, the first mounting portion 71 is disposed at an upper end of the valve body 7, the second mounting portion 72 is disposed at a right end of the valve body 7 adjacent to the first mounting portion 71, and the third mounting portion 73 and the fourth mounting portion 74 are adjacent to the first mounting portion 71 and the second mounting portion 72 and are disposed at a rear side and a front side of the valve body 7, respectively. When a driver presses a brake pedal of an automobile, the pedal input unit 2 can synchronously move under the drive of the brake pedal and drive the master cylinder 3 to advance in the valve body 7, the electric control unit 5 judges the braking intention of the driver by collecting the displacement information of the brake pedal, then the electric control unit 5 controls the pressure building unit 6 to output a target braking force according to the braking intention of the driver, and meanwhile, the pedal feel simulation unit 4 can simulate and calibrate the pedal feel in a traditional braking system. It should be noted that, the liquid storage tank 1 is used for balancing the brake liquid in the brake system, that is, when the brake liquid in the brake system is more, the brake liquid flows back to the liquid storage tank 1 to be stored; when the brake fluid in the brake system is small, the reservoir 1 will supplement the valve body 7 with brake fluid.
In the present embodiment, the valve body 7 has a hexahedral structure in view of reducing the weight and volume of the valve body 7. In some embodiments, the valve body 7 may also be octahedral or dodecahedral. Preferably, the valve body 7 is rectangular in order to integrate the different functional units.
Referring to fig. 2 and 7, in order to ensure the balance of the brake fluid in the brake system of the vehicle, the first mounting portion 71 is provided with a fluid-filling hole 711 for communicating with the fluid reservoir 1 along the first direction, and the fourth mounting portion 74 is provided with a fluid-outlet hole 741 for communicating with the fluid-filling hole 711 along the second direction. The first direction here means the height direction of the valve body 7 or the direction perpendicular to the ground, the second direction means the width direction of the valve body 7, and the second direction is perpendicular to the first direction.
In some embodiments, the number of the fluid supplementing holes 711 and the fluid outlet holes 741 may be plural. In the present embodiment, the number of the liquid replenishing holes 711 is three, and the number of the liquid outlet holes 741 is four.
Referring to fig. 3, for the integrated installation of the master cylinder 3, the second installation portion 72 is provided with a plunger hole 721 for penetrating the master cylinder 3 in the third direction, and the plunger hole 721 communicates with the fluid replacement hole 711. The third direction herein refers to a longitudinal direction of the valve body 7 or a direction parallel to the ground, which is perpendicular to the first direction and the second direction. The plug hole 721 may communicate with all or part of the fluid replacement hole 711 in the present embodiment.
In this embodiment, in order to rapidly discharge air, as shown in fig. 4 and 8, the top inner wall of the plunger hole 721 is provided with a first air discharge groove 722 and a second air discharge groove 723 extending along the third direction, and the bottom inner wall is provided with a third air discharge groove 724 extending along the third direction, since air is generally present in the valve body 7, which has an important influence on the speed and efficiency of outputting the target braking force through the master cylinder 3 or the pressure building unit 6. Before the braking, the top and bottom of the plunger hole 721 are provided with the air exhausting structure, so that air can be rapidly exhausted and exhausted through the first air exhausting slot 722, the second air exhausting slot 723 and the third air exhausting slot 724, and especially, the air in the plunger hole 721 is better reduced, so that the influence of the air in the valve body 7 on the speed and efficiency of the pressure building braking is better reduced.
In this embodiment, in order to prevent the electric control unit 5 from failing to control the pressure building unit 6 to build pressure and brake due to failure, the inner wall of the plunger hole 721 is further provided with a first sealing groove 725 along the circumferential direction of the inner wall thereof for forming a first sealing cavity with the master cylinder 3, and as shown in fig. 4 and 8, the shape of the first sealing groove 725 is adapted to the sealing ring on the master cylinder 3, and is annular. In some embodiments, the number of first seal grooves 725 may be multiple, such as four. In the present embodiment, preferably, the number of the first seal grooves 725 is five, which are arranged at intervals along the third direction, and one first seal groove 725 near the orifice of the plunger hole 721 in the present embodiment also has an effect of preventing leakage of brake fluid, compared to the conventional scheme in which four first seal grooves 725 are provided. Thus, when the driver steps on the brake pedal to request braking, the pedal force of the driver is transmitted to the master cylinder 3 through the pedal input unit 2, and at the moment, the sealing ring on the master cylinder 3 is matched with the first sealing groove 725 to form a sealed piston cavity, so that the brake is built and braked in the movement process of the piston on the master cylinder 3, and the driving safety is ensured.
Referring to fig. 5 and 6, for integrally mounting the pedal feel simulation unit 4, the third mounting portion 73 is provided with a pedal feel simulation unit mounting hole 731 along the second direction for mounting the pedal feel simulation unit 4, and a solenoid valve mounting hole 732 for connecting with a solenoid valve (not shown in the drawings) of the electronic control unit 5, wherein the pedal feel simulation unit mounting hole 731 communicates with the fluid make-up hole 711, and the solenoid valve mounting hole 731 communicates with the fluid make-up hole 711 and the fluid outlet hole 741.
It should be noted that, the top inner wall of the pedal feel simulation unit mounting hole 731 is provided with the fourth air exhaust slot 733 extending along the second direction, the bottom inner wall is provided with the fifth air exhaust slot 734 extending along the second direction, as shown in fig. 5 and 6, so as to quickly exhaust and purge air affecting the speed and efficiency of the pressure build-up brake after the brake system is mounted and before the actual use, especially the air in the pedal feel simulation unit mounting hole 731.
In this embodiment, in order to ensure that a pressure is built in the pedal feel simulation unit mounting hole 731 to simulate pedal feel when the piston of the pedal feel simulation unit 4 moves, a second sealing groove 735 for forming a second sealing cavity with the pedal feel simulation unit 4 along the circumferential direction of the inner wall of the pedal feel simulation unit mounting hole 731 is formed on the inner wall of the pedal feel simulation unit mounting hole 731, and as shown in fig. 5 and 6, the shape of the second sealing groove 735 is annular and is matched with a sealing ring on the pedal feel simulation unit 4. In some embodiments, the number of second seal grooves 735 may be multiple. In the present embodiment, the number of the second seal grooves 735 is two, and are arranged at intervals along the second direction, wherein one second seal groove 735 near the aperture of the pedal feel simulation unit mounting hole 731 also has an effect of preventing leakage of brake fluid.
Referring to fig. 7 and 9, for integrally installing the pressure building unit 6, the fourth installation portion 74 is provided with a pressure building unit installation hole 742 extending along the second direction for installing the pressure building unit 6, and the pressure building unit installation hole 742 penetrates the valve body 7 and is communicated with the fluid supplementing hole 711 and the fluid outlet hole 741. It should be noted that, in order to avoid the influence of the air in the valve body 7 on the speed and efficiency of the pressure building and braking of the pressure building unit 6, the top inner wall of the pressure building unit mounting hole 742 is provided with a sixth air discharge slot 743 extending along the second direction, so as to rapidly discharge and clean the air affecting the speed and efficiency of the pressure building and braking after the braking system is mounted and before the formal use, especially the air in the pressure building unit mounting hole 742.
In this embodiment, in order to ensure that the piston of the pressure building unit 6 builds up pressure to perform braking response in the pressure building unit mounting hole 742, a third sealing groove 744 for forming a third sealing cavity with the pressure building unit 6 along the circumferential direction of the inner wall of the pressure building unit mounting hole 742 is formed on the inner wall of the pressure building unit mounting hole 742, and as shown in fig. 7 and 9, the shape of the third sealing groove 744 is annular and adapted to the sealing ring on the pressure building unit 6. In some embodiments, the number of third seal grooves 744 may be multiple. In the present embodiment, the number of the third seal grooves 744 is two and is arranged at intervals along the second direction.
In this embodiment, in order to avoid the situation that the electric control unit 5 is short-circuited due to the micro leakage of the brake fluid in the pressure building unit 6, as shown in fig. 10 and 11, the valve body 7 of the hydraulic valve in this embodiment further has a fifth mounting portion 75 opposite to the first mounting portion 71 and a sixth mounting portion 76 opposite to the second mounting portion 72, the fifth mounting portion 75 is provided with a first fluid storage hole 751 extending along the first direction, the sixth mounting portion 76 is provided with a second fluid storage hole 761 extending along the third direction, and both the first fluid storage hole 751 and the second fluid storage hole 761 are communicated with the pressure building unit 6, which is not only beneficial for storing the leaked brake fluid, but also facilitates the judgment of the operation situation of the pressure building unit 6.
Further, in the present embodiment, the third mounting portion 73 is provided with a pedal position sensor mounting groove 736 for the purpose of assembling the pedal position sensor; the third mounting portion 73 is provided with a master cylinder pressure sensor mounting hole 737 and a build pressure sensor mounting hole 738, respectively, for assembling the master cylinder pressure sensor and the build pressure sensor; for the purpose of assembling the motor position sensor, the fourth mounting portion 74 is provided with a motor position sensor mounting hole 745, as shown in fig. 5 and 7, for detecting the position and pressure changes.
The embodiment of the present invention also discloses a brake system, referring to fig. 12, which includes a fluid reservoir 1, a pedal input unit 2, a master cylinder 3 (not shown), a pedal feel simulation unit 4 (not shown), an electric control unit 5, a pressure build-up unit 6 and a hydraulic valve as described in the above embodiment of the brake system of an automobile, wherein the fluid reservoir 1, the pedal input unit 2, the master cylinder 3, the pedal feel simulation unit 4, the electric control unit 5 and the pressure build-up unit 6 are assembled on a valve body 7 of the hydraulic valve through a first mounting portion 71, a second mounting portion 72, a third mounting portion 73 and a fourth mounting portion 74 of the valve body 7 of the hydraulic valve and are communicated with the hydraulic valve, so that the brake system has the advantages of smaller volume, lighter weight, lower cost, faster build-up speed, shorter response time, and high-order automatic driving support.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.

Claims (10)

1. A hydraulic valve for a braking system of an automobile, the hydraulic valve comprising a valve body (7), characterized in that, the valve body (7) is formed with a first mounting portion (71) for mounting a reservoir (1) of the braking system, a second mounting portion (72) for mounting a pedal input unit (2) and a master cylinder (3), a third mounting portion (73) for mounting a pedal feel simulation unit (4) and an electric control unit (5), and a fourth mounting portion (74) for mounting a pressure build-up unit (6), the first mounting portion (71) is arranged at one end of the valve body (7), the second mounting portion (72) is arranged at the other end of the valve body (7) adjacent to the first mounting portion (71), and the third mounting portion (73) and the fourth mounting portion (74) are respectively arranged at both sides of the valve body (7) and adjacent to the first mounting portion (71) and the second mounting portion (72).
2. The hydraulic valve according to claim 1, wherein the first mounting portion (71) is provided with a fluid-filling hole (711) along a first direction for communicating with the fluid reservoir (1), and the fourth mounting portion (74) is provided with a fluid-outlet hole (741) along a second direction for communicating with the fluid-filling hole (711), the second direction being perpendicular to the first direction.
3. The hydraulic valve according to claim 2, wherein the second mounting portion (72) is provided with a plunger hole (721) for penetrating the master cylinder (3) along a third direction, the plunger hole (721) being in communication with the fluid-supplementing hole (711), the third direction being perpendicular to the first direction and the second direction.
4. A hydraulic valve according to claim 3, wherein the top inner wall of the plunger bore (721) is provided with a first venting groove (722) and a second venting groove (723) extending in the third direction, and the bottom inner wall is provided with a third venting groove (724) extending in the third direction.
5. A hydraulic valve according to claim 4, wherein the inner wall of the plunger bore (721) is further provided with a first seal groove (725) along the circumferential direction of the inner wall thereof for forming a first seal chamber with the master cylinder (3).
6. The hydraulic valve according to claim 2, wherein the third mounting portion (73) is provided with a pedal feel simulation unit mounting hole (731) for mounting the pedal feel simulation unit (4) along the second direction, and a solenoid valve mounting hole (732) for connecting with a solenoid valve of the electronic control unit (5), the pedal feel simulation unit mounting hole (731) being in communication with the fluid make-up hole (711), and the solenoid valve mounting hole (732) being in communication with the fluid make-up hole (711) and the fluid outlet hole (741).
7. The hydraulic valve according to claim 6, wherein a fourth exhaust groove (733) extending in the second direction is provided in a top inner wall of the pedal feel simulation unit mounting hole (731), and a fifth exhaust groove (734) extending in the second direction is provided in a bottom inner wall.
8. The hydraulic valve according to claim 2, wherein the fourth mounting portion (74) is provided with a pressure building unit mounting hole (742) extending along the second direction for mounting the pressure building unit (6), the pressure building unit mounting hole (742) penetrating the valve body (7) and communicating with the fluid supplementing hole (711) and the fluid outlet hole (741).
9. The hydraulic valve according to claim 8, wherein a sixth air discharge groove (743) extending in the second direction is provided in a top inner wall of the pressure building unit mounting hole (742).
10. A brake system, characterized by comprising a reservoir (1), a pedal input unit (2), a master cylinder (3), a pedal feel simulation unit (4), an electric control unit (5), a pressure build unit (6) and a hydraulic valve according to any one of claims 1 to 12 of a brake system of a car, wherein the reservoir (1), the pedal input unit (2) and the master cylinder (3), the pedal feel simulation unit (4) and the electric control unit (5) and the pressure build unit (6) are assembled on and in communication with a valve body (7) of the hydraulic valve through a first mounting part (71), a second mounting part (72), a third mounting part (73) and a fourth mounting part (74) on the valve body (7) of the hydraulic valve, respectively.
CN202311758689.XA 2023-12-19 2023-12-19 Hydraulic valve and braking system with same Pending CN117698674A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311758689.XA CN117698674A (en) 2023-12-19 2023-12-19 Hydraulic valve and braking system with same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311758689.XA CN117698674A (en) 2023-12-19 2023-12-19 Hydraulic valve and braking system with same

Publications (1)

Publication Number Publication Date
CN117698674A true CN117698674A (en) 2024-03-15

Family

ID=90145863

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311758689.XA Pending CN117698674A (en) 2023-12-19 2023-12-19 Hydraulic valve and braking system with same

Country Status (1)

Country Link
CN (1) CN117698674A (en)

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