CN117382596B - Exhaust method of hydraulic line control braking system of vehicle - Google Patents

Exhaust method of hydraulic line control braking system of vehicle Download PDF

Info

Publication number
CN117382596B
CN117382596B CN202311707292.8A CN202311707292A CN117382596B CN 117382596 B CN117382596 B CN 117382596B CN 202311707292 A CN202311707292 A CN 202311707292A CN 117382596 B CN117382596 B CN 117382596B
Authority
CN
China
Prior art keywords
cavity
chamber
pressure
state
flow
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
CN202311707292.8A
Other languages
Chinese (zh)
Other versions
CN117382596A (en
Inventor
郑美云
宋京洋
段珍珍
郑利水
刘长运
陈伟春
陈颖
顾红萍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wanxiang Qianchao Co Ltd
Zhejiang Wanxiang Precision Industry Co Ltd
Original Assignee
Wanxiang Qianchao Co Ltd
Zhejiang Wanxiang Precision Industry 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 Wanxiang Qianchao Co Ltd, Zhejiang Wanxiang Precision Industry Co Ltd filed Critical Wanxiang Qianchao Co Ltd
Priority to CN202311707292.8A priority Critical patent/CN117382596B/en
Publication of CN117382596A publication Critical patent/CN117382596A/en
Application granted granted Critical
Publication of CN117382596B publication Critical patent/CN117382596B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/12—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/66—Electrical control in fluid-pressure brake systems
    • B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/002—Air treatment devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

The invention provides an exhaust method of a hydraulic line control braking system of a vehicle, which comprises the following steps: setting the first cavity, the second cavity and the fourth cavity to be in a communication state, setting the first cavity and the third cavity to be in a cutting-off state, and setting the fourth cavity and the third cavity to be in a cutting-off state; the first pressure building mechanism builds pressure according to a preset first pressure building rule so as to push fluid to flow from the fourth cavity to the first cavity and flow from the first cavity to the second cavity; the first cavity and the third cavity are set to be in a communication state so as to push at least part of fluid in the second cavity to flow into the third cavity through the first cavity, and at least part of gas in the third cavity is discharged into the atmosphere through the first communication port. The invention aims at a hydraulic line control braking system with a specific structure, and can efficiently and thoroughly discharge gas in the hydraulic line control braking system by forming different flow passages in stages and pushing fluid to flow.

Description

Exhaust method of hydraulic line control braking system of vehicle
Technical Field
The application relates to the technical field of vehicle brake control systems, in particular to an exhaust method of a hydraulic line control brake system of a vehicle.
Background
The hydraulic brake system of a vehicle generally includes a closed circuit composed of a reservoir, a master cylinder, a wheel cylinder, a pedal simulator, a pressure-building unit, and brake lines connected between the components, and the like, and brakes are released from the vehicle by controlling a brake fluid to flow in the closed circuit. Because the brake fluid has incompressible characteristic, if gas exists in the closed loop, faults such as soft pedal, insufficient braking and the like of the vehicle can occur, and serious potential safety hazards are caused in the driving process. Therefore, for a vehicle with a hydraulic brake system, the hydraulic brake system needs to be subjected to exhaust operation after the whole vehicle leaves the factory and after the hydraulic brake system is replaced.
Because there may be differences in the hydraulic brake systems provided with different brands or models of vehicles, in order to obtain a better exhaust effect, a targeted exhaust strategy needs to be formulated according to the structural composition of the hydraulic brake system provided with the vehicle.
Disclosure of Invention
In view of the above, one of the technical problems to be solved by the embodiments of the present invention is to provide a method for exhausting a hydraulic brake system of a vehicle, which is used for solving the problem of exhausting a hydraulic brake system with a specific structure.
The embodiment of the application discloses an exhaust method of a hydraulic line control braking system of a vehicle, wherein the hydraulic line control braking system comprises a master cylinder, a pedal simulator, a first pressure building mechanism and an oilcan; wherein the master cylinder comprises a first cavity, the pedal simulator comprises a second cavity, the oilcan comprises a third cavity, and the first pressure building mechanism comprises a fourth cavity; the first cavity, the second cavity, the third cavity and the fourth cavity can be respectively set to be in a communication state or a cutting state, the third cavity and the fourth cavity can be set to be in a communication state or a cutting state, and the top of the third cavity is provided with a first communication port communicated with the atmosphere;
when the hydraulic brake system is in a wet state, the method includes:
setting the first cavity, the second cavity and the fourth cavity to be in a communication state, setting the first cavity and the third cavity to be in a cutting-off state, and setting the fourth cavity and the third cavity to be in a cutting-off state;
performing pressure building according to a preset first pressure building rule by using the first pressure building mechanism so as to push fluid to flow from the fourth cavity to the first cavity and flow from the first cavity to the second cavity;
The first cavity and the third cavity are set to be in a communication state so as to push at least part of the fluid in the second cavity to flow into the third cavity through the first cavity, and at least part of the gas in the third cavity is discharged into the atmosphere through the first communication port.
In the exhaust method of the hydraulic line control braking system of the vehicle, aiming at the hydraulic line control braking system of the vehicle, which comprises a main cylinder, a pedal simulator, a first pressure building mechanism and an oilcan, a first cavity, a second cavity and a fourth cavity are firstly set to be in a communicated state, the first cavity and a third cavity are set to be in a cut-off state, and the fourth cavity and the third cavity are set to be in a cut-off state; then, the first pressure building mechanism builds pressure according to a preset first pressure building rule so as to push the fluid to flow from the fourth cavity to the first cavity and flow from the first cavity to the second cavity; and then the first cavity and the third cavity are set to be in a communication state so as to push at least part of fluid in the second cavity to flow into the third cavity through the first cavity, and at least part of gas in the third cavity is discharged into the atmosphere through the first communication port. In the scheme of the invention, aiming at the hydraulic pressure control braking system with a specific structure, different flow passages are formed in stages and fluid flow is pushed, so that gas in a first cavity of a master cylinder, a second cavity of a pedal simulator, a fourth cavity of a first pressure building mechanism and pipelines among the first cavity, the second cavity and the fourth cavity can be effectively and thoroughly discharged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of a hydraulic brake system of the type disclosed herein;
FIG. 2 is a flow chart of a method of venting a hydraulic brake control system of a vehicle in accordance with one embodiment of the present disclosure;
FIG. 3 is a flow chart of a method of venting a hydraulic brake control system of a vehicle as disclosed in example two of the present application;
fig. 4 is a schematic flow chart of an exhaust method of a hydraulic brake control system of a vehicle according to example three of the present application.
Reference numerals: a 1-PSV valve; a 2-CSV valve; a 3-SSV valve; a 4-TSV valve; 5-a second one-way valve; 6-a first one-way valve; 10-master cylinder; 11-a cylinder; 12-a fifth cavity; 13-a third communication port; 14-piston blocks; 15-a first cavity; 16-a second communication port; 20-pedal simulator; 21-a second cavity; 30-oilcan; 31-a first communication port; 32-a third cavity; 40-a first pressure build-up mechanism; 41-fourth cavity; 50-a second pressure build-up mechanism; 51-sixth cavity; 60-a first pump; 70-an accumulator; 71-eighth cavity; 80-wheel cylinders; 81-venting screws; 82-seventh cavity.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
It should be noted that the terms "first," "second," "third," and "fourth," etc. in the description and claims of the present application are used for distinguishing between different objects and not for describing a particular sequential order. The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or device.
Example one
Referring to fig. 1, the hydraulic brake system for performing the exhaust gas treatment in the present embodiment includes at least a master cylinder 10, a pedal simulator 20, a first pressure build-up mechanism 40, and an oilcan 30. Wherein, the master cylinder 10 comprises at least a first cavity 15, the pedal simulator 20 comprises at least a second cavity 21, the oilcan 30 comprises at least a third cavity 32, the first pressure building mechanism 40 comprises at least a fourth cavity 41, and the top of the third cavity 32 is provided with a first communication port 31 communicated with the atmosphere.
The switching between the communicating state and the cutting-off state of the cavities can be realized by arranging a pipeline and one or more different types of valve structures. Specifically, the first chamber 15 may be set to a communication state or a cut-off state with the second chamber 21, the third chamber 32, and the fourth chamber 41, respectively, and the third chamber 32 and the fourth chamber 41 may be set to a communication state or a cut-off state. For example, referring to fig. 1, the control of the first chamber 15 and the second chamber 21 in the communication state or the shut-off state can be achieved by controlling the state of one SSV valve 3 provided between the first chamber 15 of the master cylinder 10 and the second chamber 21 of the pedal simulator 20; by controlling the state of one TSV valve 4 provided between the first chamber 15 of the master cylinder 10 and the third chamber 32 of the oilcan 30, it is achieved that the first chamber 15 and the third chamber 32 are controlled to be in a communication state or a shut-off state; the control of the first chamber 15 and the fourth chamber 41 in the communication state or the shut-off state can be achieved by controlling the state of one CSV valve 2 and the state of one PSV valve 1 provided between the first chamber 15 of the master cylinder 10 and the fourth chamber 41 of the first pressure-building mechanism 40.
As shown in fig. 2, fig. 2 is a schematic flowchart of an exhaust method of a hydraulic brake system of a vehicle according to an example of the present application, and the exhaust method of the present embodiment is mainly directed to exhaust treatment performed when a closed loop through which brake fluid flows is in a wet state after a member of the hydraulic brake system is replaced. The exhaust method comprises the following steps:
In step S101, the first chamber 15, the second chamber 21, and the fourth chamber 41 are set to the communication state, the first chamber 15 and the third chamber 32 are set to the cut-off state, and the fourth chamber 41 and the third chamber 32 are set to the cut-off state.
In the present embodiment, the first chamber 15, the second chamber 21, and the fourth chamber 41 are provided in a communication state so that fluid including brake fluid and/or gas can flow between the first chamber 15 of the master cylinder 10, the second chamber 21 of the pedal simulator 20, and the fourth chamber 41 of the first pressure-building mechanism 40. The fourth chamber 41 and the third chamber 32 are provided in a shut-off state so that fluid cannot flow between the fourth chamber 41 of the first pressure build-up mechanism 40 and the third chamber 32 of the oilcan 30.
In step S102, the first pressure-building mechanism 40 builds pressure according to a preset first pressure-building rule to push the fluid to flow from the fourth chamber 41 to the first chamber 15 and from the first chamber 15 to the second chamber 21.
In this embodiment, the first pressure-building mechanism 40 is configured to increase or decrease the pressure of the fourth cavity 41 according to a set pressure-building rule, so as to push the fluid to flow out of the fourth cavity 41 or flow into the fourth cavity 41.
In this embodiment, by setting the first pressure-building rule, the speed and/or the start time of the pressure-building process performed by the first pressure-building mechanism 40 can be controlled. The specific content included in the first pressure building rule is not limited, and can be reasonably selected according to actual application requirements.
In the present embodiment, in step S102, the first pressure-building mechanism 40 may increase the pressure in the fourth chamber 41 by reducing the volume of the fourth chamber 41 to push the fluid from the fourth chamber 41 to the first chamber 15 and increase the pressure in the first chamber 15; after the pressure in the first cavity 15 increases, the fluid may further flow from the first cavity 15 to the second cavity 21, so that the overall pressure of the first cavity 15, the second cavity 21, the fourth cavity 41 and the pipeline between the first cavity 15, the second cavity 21 and the fourth cavity 41 increases.
In step S103, the first cavity 15 and the third cavity 32 are set to be in a communication state to push at least part of the fluid in the second cavity 21 to flow into the third cavity 32 through the first cavity 15, and at least part of the gas in the third cavity 32 is discharged into the atmosphere through the first communication port 31.
In the present embodiment, since the overall pressure of the first chamber 15, the second chamber 21, the fourth chamber 41 and the piping between the first chamber 15, the second chamber 21, and the fourth chamber 41 has been increased in step S102, after the first chamber 15 and the third chamber 32 are placed in the communicating state in step S103, the fluid in the piping between the first chamber 15, the second chamber 21, the fourth chamber 41 and the first chamber 15, the second chamber 21, and the fourth chamber 41 can flow into the third chamber 32 due to the existence of the pressure difference.
Further, since the top of the third chamber 32 has the first communication port 31 communicating with the atmosphere, when the pure gas flows into the third chamber 32, it can be discharged into the atmosphere through the first communication port 31.
Alternatively, referring to fig. 1, in the hydraulic brake system, an upper portion of the third chamber 32 of the oilcan 30 is communicated with the first chamber 15 through the second communication port 16, and a lower portion of the third chamber 32 of the oilcan 30 is connected with the fourth chamber 41 through the first check valve 6. When the vehicle is in a finished vehicle delivery state, that is, the hydraulic brake system is in a dry state, in order to realize the exhaust operation of the hydraulic brake system, before step S101, the embodiment further includes the following steps a and B:
in step a, the first chamber 15, the second chamber 21, the third chamber 32, and the fourth chamber 41 are set to a communication state.
And step B, performing air extraction treatment on the upper part of the third cavity 32 so that the air in the fourth cavity 41, the second cavity 21 and the first cavity 15 flows into the upper part of the third cavity 32 through the second communication port 16, and the liquid in the lower part of the third cavity 32 flows into the fourth cavity 41, the second cavity 21 and the first cavity 15.
In step B, the specific operation mode of performing the air extraction treatment on the upper portion of the third cavity 32 is not limited, and may be reasonably selected according to the actual application requirement. For example, the evacuation treatment may be performed by a vacuum pump.
Further, referring to fig. 1, the hydraulic brake system further includes a second pressure build-up mechanism 50, and the second pressure build-up mechanism 50 includes a sixth chamber 51. The master cylinder 10 further includes a fifth chamber 12 provided separately from the first chamber 15, and the fifth chamber 12 may be provided in a communication state or a cut-off state with the third chamber 32, the sixth chamber 51, respectively. The upper portion of the third chamber 32 communicates with the fifth chamber 12 through the third communication port 13. The lower portion of the third chamber 32 is connected to the sixth chamber 51 through the second check valve 5.
The second pressure build-up mechanism 50 is used to increase or decrease the pressure of the sixth cavity 51 according to a set pressure build-up rule, similar to the first pressure build-up mechanism 40, so as to push the fluid to flow out of the sixth cavity 51 or flow into the sixth cavity 51. By providing the second one-way valve 5, it is possible to allow fluid to flow only from the third chamber 32 of the oilcan 30 into the sixth chamber 51 of the second pressure build-up mechanism 50.
When the hydraulic brake system is in a dry state, in order to allow the gas in the hydraulic brake system to be exhausted more thoroughly, step a may include: the first chamber 15, the second chamber 21, the third chamber 32, and the fourth chamber 41 are set to a communication state, and the fifth chamber 12, the sixth chamber 51, and the third chamber 32 are set to a communication state.
Correspondingly, step B may comprise: the air extraction process is performed at the upper portion of the third chamber 32 such that the gas in the fourth chamber 41, the second chamber 21, and the first chamber 15 flows into the upper portion of the third chamber 32 through the second communication port 16, the gas in the sixth chamber 51 and the fifth chamber 12 flows into the upper portion of the third chamber 32 through the third communication port 13, and the liquid in the lower portion of the third chamber 32 flows into the sixth chamber 51, the fifth chamber 12, the fourth chamber 41, the second chamber 21, and the first chamber 15.
Wherein, in step a, after the first chamber 15, the second chamber 21, the third chamber 32, and the fourth chamber 41 are set to the communication state, fluid can flow between the fourth chamber 41 of the first pressure building mechanism 40, the first chamber 15 of the master cylinder 10, the second chamber 21 of the pedal simulator 20, and the third chamber 32 of the oilcan 30; after the fifth chamber 12, the sixth chamber 51, and the third chamber 32 are set to the communication state, fluid can flow between the sixth chamber 51 of the second pressure build mechanism 50, the fifth chamber 12 of the master cylinder 10, and the third chamber 32 of the oilcan 30.
In step B, the air pumping treatment is performed on the upper portion of the third cavity 32, so that the fluid in the first cavity 15, the second cavity 21, the fourth cavity 41, the fifth cavity 12, the sixth cavity 51 and the pipes among the cavities can all flow into the third cavity 32, so as to realize that the gas in the hydraulic line control system is discharged more thoroughly.
Further, in order to enable the hydraulic brake system to start working smoothly, if the vacuum pump is used for pumping in the step B, when the vacuum degree in the closed cavity of the hydraulic brake system reaches the preset threshold, the brake fluid can be quickly filled into the cavity and the pipeline of the hydraulic brake system by placing the brake fluid in the third cavity 32 of the oil can 30 and filling a certain pressure into the brake fluid.
As is apparent from the above description of the present embodiment, the present embodiment is directed to the hydraulic brake system including the master cylinder 10, the pedal simulator 20, the first pressure build-up mechanism 40, the oilcan 30, in which the first chamber 15, the second chamber 21, and the fourth chamber 41 are first set to the communication state, and the first chamber 15 and the third chamber 32 are set to the cut-off state, and the fourth chamber 41 and the third chamber 32 are set to the cut-off state; the first pressure building mechanism 40 is utilized to build pressure according to a preset first pressure building rule so as to push fluid to flow from the fourth cavity 41 to the first cavity 15 and flow from the first cavity 15 to the second cavity 21; the first chamber 15 and the third chamber 32 are placed in communication to push at least part of the fluid in the second chamber 21 through the first chamber 15 into the third chamber 32 and at least part of the gas in the third chamber 32 is vented to atmosphere through the first communication port 31. In the solution of the present embodiment, for the hydraulic brake system having a specific structure, by forming different flow passages in stages and pushing the fluid to flow, the gas in the first chamber 15 of the master cylinder 10, the second chamber 21 of the pedal simulator 20, the fourth chamber 41 of the first pressure building mechanism 40, and the piping between the first chamber 15, the second chamber 21, and the fourth chamber 41 can be efficiently and thoroughly discharged.
Example two
In the exhaust method of the hydraulic brake system of the vehicle disclosed in the second embodiment of the present application, referring to fig. 1, the hydraulic brake system further includes a second pressure building mechanism 50, where the second pressure building mechanism 50 includes a sixth cavity 51; the master cylinder 10 further includes a fifth chamber 12 provided separately from the first chamber 15, and the fifth chamber 12 may be provided in a communication state or a cut-off state with the third chamber 32, the sixth chamber 51, respectively.
As shown in fig. 3, fig. 3 is a schematic flowchart of an exhaust method of a hydraulic brake system of a vehicle disclosed in example two of the present application, where the exhaust method of the present embodiment is mainly directed to exhaust treatment performed when a closed loop through which brake fluid flows is in a wet state after a member of the hydraulic brake system is replaced. The exhaust method comprises the following steps:
in step S201, the fifth chamber 12, the third chamber 32, and the sixth chamber 51 are set to the communication state.
In the present embodiment, the fifth chamber 12, the third chamber 32, and the sixth chamber 51 are set in a communication state such that fluid including brake fluid and/or gas can flow between the fifth chamber 12 of the master cylinder 10, the third chamber 32 of the oilcan 30, and the sixth chamber 51 of the second pressure-building mechanism 50.
In step S202, the second pressure-building mechanism 50 is utilized to build pressure according to a preset second pressure-building rule, so as to push the fluid to flow from the sixth cavity 51 to the fifth cavity 12, and flow from the fifth cavity 12 into the third cavity 32, and at least part of the gas in the third cavity 32 is discharged into the atmosphere through the first communication port 31.
In this embodiment, by setting the second pressure-building rule, the speed and/or the start time of the pressure-building process performed by the second pressure-building mechanism 50 can be controlled. The specific content included in the second pressure building rule is not limited, and can be reasonably selected according to actual application requirements.
In the present embodiment, in step S202, the second pressure-building mechanism 50 may increase the pressure in the sixth chamber 51 by reducing the volume of the sixth chamber 51 to push the fluid to flow from the sixth chamber 51 to the fifth chamber 12 and further flow from the fifth chamber 12 into the third chamber 32, so that the pure gas flowing into the third chamber 32 may be discharged into the atmosphere through the first communication port 31; if the gas is mixed with the brake fluid, it is determined whether the gas contained in the fifth chamber 12, the sixth chamber 51, and the piping between the fifth chamber 12 and the sixth chamber 51 has been completely exhausted by detecting the gas content in the liquid flowing into the third chamber 32.
Optionally, in order to completely exhaust the gas in the first cavity 15, the fourth cavity 41, the fifth cavity 12, the sixth cavity 51, the pipeline between the first cavity 15 and the fourth cavity 41, the pipeline of the fifth cavity 12 and the sixth cavity 51, the step S202 may include the following sub-steps S202 a-S202 c:
substep S202a sets the first cavity 15, the third cavity 32, and the fourth cavity 41 to the communication state, and sets the first cavity 15 and the second cavity 21 to the cut-off state, and sets the fourth cavity 41 and the second cavity 21 to the cut-off state.
Wherein the first chamber 15, the second chamber 21, and the fourth chamber 41 are set to a communication state, and the first chamber 15 and the second chamber 21 are set to a shut-off state, in order to allow fluid to flow between the fourth chamber 41 of the first pressure building mechanism 40, the first chamber 15 of the master cylinder 10, and the third chamber 32 of the oilcan 30, but not between the first chamber 15 of the master cylinder 10 and the second chamber of the pedal simulator 20, and between the fourth chamber 41 of the first pressure building mechanism 40 and the second chamber 21 of the pedal simulator 20.
Sub-step S202b, performing pressure build-up by using the second pressure build-up mechanism 50 according to a preset fourth pressure build-up rule to push the fluid to flow from the sixth cavity 51 to the fifth cavity 12 and from the fifth cavity 12 to the third cavity 32; and performing pressure build-up according to a preset third pressure build-up rule by using the first pressure build-up mechanism 40 to push the fluid to flow from the fourth chamber 41 to the first chamber 15 and from the first chamber 15 to the third chamber 32.
The second pressure-building mechanism 50 builds pressure according to the preset fourth pressure-building rule and the first pressure-building mechanism 40 builds pressure according to the preset third pressure-building rule, so that the pressure in the sixth cavity 51 of the second pressure-building mechanism 50 and the fourth cavity 41 of the first pressure-building mechanism 40 is increased, and the fluid is pushed to flow to the third cavity 32 of the oil can 30. The third pressure building rule may be the same as or different from the first pressure building rule in the first embodiment, and the fourth pressure building rule may be the same as or different from the second pressure building rule in the first embodiment, which is not limited herein, and may be reasonably selected according to practical application requirements.
The time sequence of the pressure building treatment performed by the first pressure building mechanism 40 and the second pressure building mechanism 50 is not limited, and can be reasonably selected according to the actual application requirements.
Further, in order to improve the exhaust efficiency, it may be preferable that the operation time range in which one of the first pressure build-up mechanism 40 and the second pressure build-up mechanism 50 performs the pressure build-up process is located within the operation time range in which the other performs the pressure build-up process in the substep S202 b.
Substep S202c, exhausting at least part of the gas in the third chamber 32 into the atmosphere through the first communication port 31.
In step S203, the first cavity 15, the second cavity 21, and the fourth cavity 41 are set to the communication state, and the first cavity 15 and the third cavity 32 are set to the cut-off state, and the fourth cavity 41 and the third cavity 32 are set to the cut-off state.
In this embodiment, the order of steps S203-S205 and steps S201-S202 before and after execution is not limited, and may be reasonably selected according to the actual application requirement. Preferably, after step S201 to step S202 are performed, step S203 to step S205 are performed.
In this embodiment, the content of step S203 is substantially the same as or similar to the content of step S101 in the first embodiment or step S202 in the second embodiment, and will not be described herein.
In step S204, the first pressure-building mechanism 40 builds pressure according to the preset first pressure-building rule to push the fluid to flow from the fourth chamber 41 to the first chamber 15 and from the first chamber 15 to the second chamber 21.
Alternatively, referring to fig. 1, the master cylinder 10 includes a cylinder body 11 and a piston block 14, wherein the piston block 14 is movably installed inside the cylinder body 11 and encloses a first chamber 15 and a fifth chamber 12 with an inner wall of the cylinder body 11. The upper portion of the cylinder 11 is provided with a second communication port 16 and a third communication port 13, the first chamber 15 may communicate with the third chamber 32 through the second communication port 16, and the fifth chamber 12 may communicate with the third chamber 32 through the third communication port 13.
When the pressure in the first chamber 15 is greater than the pressure in the fifth chamber 12, the piston block 14 moves in the cylinder 11 to reduce the volume of the fifth chamber 12 in order to achieve a pressure balance state, and when the piston block 14 moves to a certain position, the third communication port 13 may be blocked so that the fifth chamber 12 of the master cylinder 10 and the third chamber 32 of the oilcan 30 are in a shut-off state.
When the pressure in the fifth chamber 12 is greater than the pressure in the first chamber 15, the piston block 14 moves in the cylinder 11 to compress the volume of the first chamber 15 in order to achieve a pressure balance state, and when the piston block 14 moves to a certain position, the third communication port 13 may be unblocked to place the fifth chamber 12 of the master cylinder 10 and the third chamber 32 of the oilcan 30 in a communication state.
Accordingly, in order to allow the gas in the first chamber 15, the second chamber 21, the fourth chamber 41, and the pipes between the first chamber 15, the second chamber 21, and the fourth chamber 41 to be completely and efficiently discharged, the gas in the pipes between the first chamber 15, the second chamber 21, the fourth chamber 41, and the first chamber 15, the second chamber 21, and the fourth chamber 41 of the master cylinder 10 may be discharged after the gas in the pipes between the sixth chamber 51 of the second pressure building mechanism 50, the fifth chamber 12 of the master cylinder 10, and the sixth chamber 51 of the second pressure building mechanism 50, and the fifth chamber 12 of the master cylinder 10 is discharged. Specifically, step S204 may include: the first pressure build-up mechanism 40 is utilized to build up pressure according to a preset first pressure build-up rule, push the piston block 14 to move and block the third communication port 13, and push fluid to flow from the fourth cavity 41 to the first cavity 15 and from the first cavity 15 to the second cavity 21.
In step S205, the first chamber 15 and the third chamber 32 are set to a communication state to push at least part of the fluid in the second chamber 21 to flow into the third chamber 32 through the first chamber 15, and at least part of the gas in the third chamber 32 is discharged into the atmosphere through the first communication port 31.
In this embodiment, the content of step S205 is substantially the same as or similar to that of step S103 in the previous embodiment, and will not be described herein.
As can be seen from the above description of the present embodiment, compared with the foregoing embodiments, the present embodiment can completely discharge the gas included in the first chamber 15, the second chamber 21, the fourth chamber 41, and the pipes between the first chamber 15, the second chamber 21, the fourth chamber 41, and the third chamber 32, except for the above embodiments; the fifth cavity 12, the third cavity 32 and the sixth cavity 51 are set to be in a communication state, and the second pressure building mechanism 50 is utilized to build pressure according to a preset fourth pressure building rule, so that the gas contained in the fifth cavity 12 of the master cylinder 10, the sixth cavity 51 of the second pressure building mechanism 50 and the pipeline between the fifth cavity 12 and the sixth cavity 51 is completely discharged, and the gas in the hydraulic line control system of the vehicle is completely discharged.
Example three
In the exhaust method of the hydraulic brake system of the vehicle disclosed in the third embodiment of the present application, the hydraulic brake system further includes a plurality of wheel cylinders 80, each wheel cylinder 80 has a seventh cavity 82, and at least one seventh cavity 82 and the first cavity 15 may be set to be in a communicating state or a cutting state. For example, referring to fig. 1, the hydraulic brake system further includes four wheel cylinders 80, each wheel cylinder 80 having one seventh chamber 82, wherein the seventh chamber 82 of two wheel cylinders 80 and the first chamber 15 of the master cylinder 10 may be set to a communication state or a shut-off state, and the seventh chamber 82 of two wheel cylinders 80 and the fifth chamber 12 of the master cylinder 10 may be set to a communication state or a shut-off state.
As shown in fig. 4, fig. 4 is a schematic flowchart of an exhaust method of a hydraulic brake system of a vehicle disclosed in example three of the present application, where the exhaust method of the present embodiment is mainly directed to exhaust treatment performed when a closed loop through which brake fluid flows is in a wet state after a member of the hydraulic brake system is replaced. The exhaust method comprises the following steps:
in step S301, all the gas in the seventh chamber 82 is discharged into the atmosphere.
In this embodiment, since gas may also exist in the seventh chamber 82 after the hydraulic brake system is replaced, in order to allow the gas in the hydraulic brake system of the vehicle to be completely discharged, it is necessary to discharge all the gas in the seventh chamber 82 into the atmosphere. The specific exhaust mode adopted is not limited, and can be reasonably selected according to actual application requirements.
Alternatively, since the hydraulic line control brake system may generally include a caliper connected to the wheel cylinder 80, the caliper may have a vent screw 81 thereon, and the seventh chamber 82 of the wheel cylinder 80 and the atmosphere may be set to a communication state or a shut-off state by operating the vent screw 81. In order to more easily exhaust the gas in the seventh chamber 82 of the wheel cylinder 80, step S301 may include: the seventh chamber 82 is subjected to pressure build-up processing, and the seventh chamber 82 and the atmosphere are set in a communication state by the exhaust screw 81, so that the gas in the entire seventh chamber 82 is exhausted into the atmosphere.
The specific way of pressing the seventh cavity 82 is not limited, and may be reasonably selected according to practical application requirements. For example, the exhaust may be performed purely manually, i.e. by manually depressing the brake pedal of the vehicle, and exhausting the air in the seventh cavity 82 in cooperation with the exhaust screw 81 on the caliper.
Further, in order to efficiently and more thoroughly discharge the gas in the seventh chamber 82 of the wheel cylinder 80, when the seventh chamber 82 of the wheel cylinder 80 may communicate with the fourth chamber 41 of the first pressure-building mechanism 40, the pressure-building process for the seventh chamber 82 includes: the seventh chamber 82 and the fourth chamber 41 are set in a communication state, and pressure is built by the first pressure build-up mechanism 40 according to a preset fifth pressure build-up rule to push the fluid from the fourth chamber 41 into the seventh chamber 82.
Similarly, when the seventh chamber 82 of the wheel cylinder 80 is communicable with the sixth chamber 51 of the second pressure building mechanism 50, the pressure building process for the seventh chamber 82 includes: the seventh chamber 82 and the sixth chamber 51 are set in a communication state, and pressure is built by the second pressure build-up mechanism 50 according to a preset sixth pressure build-up rule to push the fluid from the sixth chamber 51 into the seventh chamber 82.
The fifth pressure building rule may be the same as or different from the first pressure building rule in the first embodiment and the third pressure building rule in the second embodiment; the sixth pressure building rule may be the same as or different from the second pressure building rule in the first embodiment and the fourth pressure building rule in the second embodiment, which are not limited herein, and may be reasonably selected according to practical application requirements.
Alternatively, it is contemplated that many vehicles may include an electronic stability control system having the accumulator 70 and the first pump 60 in addition to the hydraulic line control braking system, wherein the accumulator 70 includes an eighth chamber 71, and the eighth chamber 71 may be placed in communication or in a disconnected state with the seventh chamber 82 of the wheel cylinder 80, the first chamber 15 of the master cylinder 10, and/or the eighth chamber 71 may be placed in communication or in a disconnected state with the seventh chamber 82 of the wheel cylinder 80, the fifth chamber 12 of the master cylinder 10, respectively. In order to reduce the difficulty of manual operations on the premise that the gas in the seventh chamber 82 of the wheel cylinder 80 is thoroughly discharged, the step S301 may include the following sub-steps S301a and S301b:
In the substep S301a, the seventh chamber 82 is subjected to pressure build-up processing so that the fluid in the seventh chamber 82 flows into the eighth chamber 71.
The first pressure-building mechanism 40 and/or the second pressure-building mechanism 50 may be used to perform pressure-building processing on the seventh cavity 82, and the specific pressure-building manner of the pressure-building processing on the seventh cavity 82 is not limited, and may be reasonably selected according to practical application requirements.
Substep S301b, pumping the fluid in the eighth chamber 71 by the first pump 60 such that the fluid in the eighth chamber 71 flows into the third chamber 32 through the first chamber 15, and at least part of the gas in the third chamber 32 is discharged into the atmosphere through the first communication port 31.
Wherein, when the eighth cavity 71 of the accumulator 70 is filled with fluid, the fluid in the eighth cavity 71 may be pumped by the first pump 60. The specific type of the first pump 60 is not limited and may be appropriately selected according to the actual application requirements. For example, a plunger pump may be preferable.
In step S302, the first cavity 15, the second cavity 21, and the fourth cavity 41 are set to be in communication, the first cavity 15, and the third cavity 32 are set to be in the cut-off state, and the fourth cavity 41, and the third cavity 32 are set to be in the cut-off state.
In this embodiment, the content of step S302 is substantially the same as or similar to the content of step S101 in the first embodiment or step S203 in the second embodiment, and will not be described herein.
In step S303, the first pressure-building mechanism 40 builds pressure according to a preset first pressure-building rule to push the fluid to flow from the fourth chamber 41 to the first chamber 15 and from the first chamber 15 to the second chamber 21.
In this embodiment, the content of step S203 is substantially the same as or similar to the content of step S102 in the first embodiment or step S204 in the second embodiment, and will not be described herein.
In step S304, the first cavity 15 and the third cavity 32 are set to be in a communication state to push at least part of the fluid in the second cavity 21 to flow into the third cavity 32 through the first cavity 15, and at least part of the gas in the third cavity 32 is discharged into the atmosphere through the first communication port 31.
In this embodiment, the content of step S304 is substantially the same as or similar to the content of step S103 in the first embodiment or step S205 in the second embodiment, and will not be described herein.
In this embodiment, the implementation sequence of step S301 and step S302 to step S304 is not limited, and may be reasonably selected according to the actual application requirement.
As is apparent from the above description of the present embodiment, in comparison with the foregoing embodiment, in addition to the complete discharge of the gas included in the first chamber 15, the second chamber 21, the fourth chamber 41, and the pipes between the first chamber 15, the second chamber 21, the fourth chamber 41, and the third chamber 32, the gas in the seventh chamber 82 of the wheel cylinder 80 may be discharged to the atmosphere in stages, so that the gas in the hydraulic brake system may be discharged thoroughly.
Thus far, specific embodiments of the present application have been described. Other embodiments are within the scope of the following claims. In some cases, the actions recited in the claims can be performed in a different order and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may be advantageous.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.
It will be apparent to those skilled in the art that embodiments of the present application may be provided as methods, apparatus. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer storage media (including, but not limited to, magnetic disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for the device embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference is made to the description of the method embodiments in part.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims (8)

1. The exhaust method of the hydraulic line control braking system of the vehicle is characterized in that the hydraulic line control braking system comprises a master cylinder, a pedal simulator, a first pressure building mechanism and an oilcan; wherein the master cylinder comprises a first cavity, the pedal simulator comprises a second cavity, the oilcan comprises a third cavity, and the first pressure building mechanism comprises a fourth cavity; the first cavity can be respectively communicated with the second cavity, the third cavity and the fourth cavity or cut off, the third cavity and the fourth cavity can be respectively communicated with each other or cut off, and the top of the third cavity is provided with a first communication port communicated with the atmosphere;
when the hydraulic brake system is in a wet state, the method includes:
setting the first cavity, the second cavity and the fourth cavity to be in a communication state, setting the first cavity and the third cavity to be in a cutting-off state, and setting the fourth cavity and the third cavity to be in a cutting-off state;
Performing pressure building according to a preset first pressure building rule by using the first pressure building mechanism so as to push fluid to flow from the fourth cavity to the first cavity and flow from the first cavity to the second cavity;
setting the first cavity and the third cavity to a communication state so as to push at least part of the fluid in the second cavity to flow into the third cavity through the first cavity, and discharging at least part of the gas in the third cavity into the atmosphere through the first communication port;
the hydraulic line control braking system further comprises a second pressure building mechanism, wherein the second pressure building mechanism comprises a sixth cavity; the master cylinder further comprises a fifth cavity which is isolated from the first cavity, and the fifth cavity can be respectively communicated with the third cavity and the sixth cavity or cut off; the upper part of the third cavity is communicated with the fifth cavity through a third communication port; the lower part of the third cavity is connected with the sixth cavity through a second one-way valve; the upper part of the third cavity is communicated with the first cavity through a second communication port, and the lower part of the third cavity is connected with the fourth cavity through a first one-way valve;
When the hydraulic brake system is in a dry state, the method further comprises:
setting the first, second, third and fourth cavities to a communication state, and setting the fifth, sixth and third cavities to a communication state;
and performing air extraction treatment on the upper part of the third cavity, so that the gas in the fourth cavity, the second cavity and the first cavity flows into the upper part of the third cavity through the second communication port, the gas in the sixth cavity and the fifth cavity flows into the upper part of the third cavity through the third communication port, and the liquid in the lower part of the third cavity flows into the sixth cavity, the fifth cavity, the fourth cavity, the second cavity and the first cavity.
2. The method of claim 1, wherein the hydraulic brake system further comprises a second pressure build-up mechanism comprising a sixth cavity; the master cylinder further comprises a fifth cavity which is isolated from the first cavity, and the fifth cavity can be respectively communicated with the third cavity and the sixth cavity or cut off;
When the hydraulic brake system is in a wet state, the method further comprises:
setting the fifth cavity, the third cavity and the sixth cavity to be in a communication state;
and building pressure according to a preset second pressure building rule by using the second pressure building mechanism so as to push fluid to flow from the sixth cavity to the fifth cavity and flow from the fifth cavity into the third cavity, wherein at least part of gas in the third cavity is discharged into the atmosphere through the first communication port.
3. The method of claim 2, wherein the master cylinder comprises a cylinder body and a piston block movably mounted inside the cylinder body and enclosing with an inner wall of the cylinder body to form the first and fifth chambers; the upper part of the cylinder body is provided with a second communication port and a third communication port, the first cavity is communicated with the third cavity through the second communication port, and the fifth cavity is communicated with the third cavity through the third communication port;
the step of using the first pressure-building mechanism to build pressure according to a preset first pressure-building rule to push fluid to flow from the fourth cavity to the first cavity and from the first cavity to the second cavity includes:
And building pressure according to a preset first pressure building rule by using the first pressure building mechanism, pushing the piston block to move and block the third communication port, and pushing fluid to flow from the fourth cavity to the first cavity and from the first cavity to the second cavity.
4. The method of claim 2, wherein the pressurizing with the second pressurizing mechanism according to a preset second pressurizing rule to push the fluid to flow from the sixth chamber to the fifth chamber and from the fifth chamber to the third chamber, wherein the exhausting at least part of the gas in the third chamber into the atmosphere through the first communication port comprises:
setting the first cavity, the third cavity and the fourth cavity to be in a communication state, setting the first cavity and the second cavity to be in a cutting-off state, and setting the fourth cavity and the second cavity to be in a cutting-off state;
performing pressure building according to a preset fourth pressure building rule by using the second pressure building mechanism so as to push fluid to flow from the sixth cavity to the fifth cavity and flow from the fifth cavity into the third cavity; and performing pressure building according to a preset third pressure building rule by utilizing the first pressure building mechanism so as to push fluid to flow from the fourth cavity to the first cavity and flow from the first cavity into the third cavity;
And discharging at least part of the gas in the third cavity into the atmosphere through the first communication port.
5. The method of claim 1, wherein the hydraulic brake system further comprises a plurality of wheel cylinders, each wheel cylinder having a seventh cavity, at least one of the seventh cavities being settable to a connected state or a disconnected state with the first cavity;
when the hydraulic brake system is in a wet state, the method further comprises:
and discharging all the gas in the seventh cavity into the atmosphere.
6. The method of claim 5, wherein the hydraulic brake system further comprises a vent screw by which the seventh chamber and atmosphere are settable to a connected state or a disconnected state;
the exhausting all the gas in the seventh cavity into the atmosphere includes:
and performing pressure build-up treatment on the seventh cavity, and setting the seventh cavity and the atmosphere into a communication state by using the exhaust screw, so that the gas in all the seventh cavity is discharged into the atmosphere.
7. The method of claim 5, wherein the vehicle further comprises an electronic stability control system comprising an accumulator and a first pump, the accumulator comprising an eighth cavity, the eighth cavity being disposable in a connected state or a disconnected state with the seventh cavity, the first cavity, respectively;
The exhausting all the gas in the seventh cavity into the atmosphere includes:
performing pressure build-up treatment on the seventh cavity so that fluid in the seventh cavity flows into the eighth cavity;
and pumping the fluid in the eighth cavity by using the first pump, so that the fluid in the eighth cavity flows into the third cavity through the first cavity, and at least part of gas in the third cavity is discharged into the atmosphere through the first communication port.
8. The method according to claim 6 or 7, wherein the seventh cavity and the fourth cavity are settable to a connected state or a disconnected state; the performing the pressure build-up processing on the seventh cavity includes:
setting the seventh cavity and the fourth cavity to be in a communication state, and performing pressure building according to a preset fifth pressure building rule by utilizing the first pressure building mechanism so as to push fluid to flow into the seventh cavity from the fourth cavity.
CN202311707292.8A 2023-12-13 2023-12-13 Exhaust method of hydraulic line control braking system of vehicle Active CN117382596B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311707292.8A CN117382596B (en) 2023-12-13 2023-12-13 Exhaust method of hydraulic line control braking system of vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311707292.8A CN117382596B (en) 2023-12-13 2023-12-13 Exhaust method of hydraulic line control braking system of vehicle

Publications (2)

Publication Number Publication Date
CN117382596A CN117382596A (en) 2024-01-12
CN117382596B true CN117382596B (en) 2024-03-12

Family

ID=89435995

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311707292.8A Active CN117382596B (en) 2023-12-13 2023-12-13 Exhaust method of hydraulic line control braking system of vehicle

Country Status (1)

Country Link
CN (1) CN117382596B (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104228809A (en) * 2014-09-18 2014-12-24 吉林大学 Exhaust gear applied to automotive hydraulic braking system and control method
KR20190037818A (en) * 2017-09-29 2019-04-08 주식회사 만도 Electric brake system
JP2019156147A (en) * 2018-03-13 2019-09-19 日立オートモティブシステムズ株式会社 Brake control device, control method for controlling brake device and brake control system
CN110758365A (en) * 2019-12-09 2020-02-07 宁泓(深圳)汽车科技有限公司 Integrated brake-by-wire system for vehicle
CN114537356A (en) * 2022-03-03 2022-05-27 万向钱潮股份有限公司 Electronic braking boosting system for large vehicle
CN115123165A (en) * 2022-08-31 2022-09-30 万向钱潮股份公司 Multi-axle vehicle line control brake system
CN115158266A (en) * 2022-09-07 2022-10-11 万向钱潮股份公司 Brake system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022150987A1 (en) * 2021-01-12 2022-07-21 华为技术有限公司 Hydraulic brake system and gas discharge control method therefor, controller, and vehicle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104228809A (en) * 2014-09-18 2014-12-24 吉林大学 Exhaust gear applied to automotive hydraulic braking system and control method
KR20190037818A (en) * 2017-09-29 2019-04-08 주식회사 만도 Electric brake system
JP2019156147A (en) * 2018-03-13 2019-09-19 日立オートモティブシステムズ株式会社 Brake control device, control method for controlling brake device and brake control system
CN110758365A (en) * 2019-12-09 2020-02-07 宁泓(深圳)汽车科技有限公司 Integrated brake-by-wire system for vehicle
CN114537356A (en) * 2022-03-03 2022-05-27 万向钱潮股份有限公司 Electronic braking boosting system for large vehicle
CN115123165A (en) * 2022-08-31 2022-09-30 万向钱潮股份公司 Multi-axle vehicle line control brake system
CN115158266A (en) * 2022-09-07 2022-10-11 万向钱潮股份公司 Brake system

Also Published As

Publication number Publication date
CN117382596A (en) 2024-01-12

Similar Documents

Publication Publication Date Title
JP6341580B2 (en) Brake control device, brake system, and brake fluid pressure generation method
KR101418328B1 (en) Integrated Electronic Hydraulic Brake System
US8474488B2 (en) Low pressure accumulator for anti-lock brake system
JP5386042B2 (en) Brake device for vehicle and control method for vehicle brake device
KR20130104160A (en) Integrated electronic hydraulic brake system
EP2960125A1 (en) Braking system
KR20150069100A (en) Integrated Electronic Hydraulic Brake System
KR20130104176A (en) Integrated electronic hydraulic brake system
JP2015058719A (en) Brake control device and brake control method
KR20160128387A (en) Air dryer purge controller and method
CN117382596B (en) Exhaust method of hydraulic line control braking system of vehicle
KR20120024640A (en) Slip-controlled hydraulic vehicle brake system
CN111391807B (en) Purging method of decoupling braking system and braking system applying method
WO2005123475A1 (en) Master cylinder with fill-up function
JP4354534B2 (en) Hydraulic unit
JP2013043637A (en) Electric hydraulic dynamic brake system and control method
JP2003504264A (en) Master cylinder device
JP2019059409A (en) Vehicular brake device
WO2022016347A1 (en) Brake control device, brake control system, and control method
KR102211825B1 (en) Active hydraulic booster system in vehice
JP2018100019A (en) Fluid pressure control device and brake system
JP2012229020A (en) Brake device
JP5947691B2 (en) Brake device
JP2004161252A (en) Hydraulic brake valve
JP6615939B2 (en) Brake control device, brake system, and brake fluid pressure generation method

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant