CN113153699A - Vehicle braking system, unloading method of air compressor assembly and vehicle - Google Patents
Vehicle braking system, unloading method of air compressor assembly and vehicle Download PDFInfo
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- CN113153699A CN113153699A CN202110343563.0A CN202110343563A CN113153699A CN 113153699 A CN113153699 A CN 113153699A CN 202110343563 A CN202110343563 A CN 202110343563A CN 113153699 A CN113153699 A CN 113153699A
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- air
- column valve
- integrated device
- air compressor
- switch integrated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/125—Cylinder heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/16—Filtration; Moisture separation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/02—Stopping, starting, unloading or idling control
- F04B49/03—Stopping, starting, unloading or idling control by means of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention relates to a vehicle braking system, an unloading method of an air compressor assembly and a vehicle, wherein the vehicle braking system comprises the air compressor assembly, the air compressor assembly comprises an air compressor main body and a column valve switch integrated device, and the column valve switch integrated device is arranged on the air compressor main body and is used for controlling the communication between an air inlet cavity and an air exhaust cavity of the air compressor main body and controlling the opening and closing of an air exhaust port of the air compressor main body; an air inlet of the air compressor main body is connected with an air filter through a pipeline, and an air outlet is connected with a dryer through a pipeline; the pressure signal sensor is arranged at the opening 23 of the dryer and used for monitoring the pressure of the air storage tank; and the ECU is used for receiving the pressure signal, generating a control signal according to the pressure signal and outputting the control signal to the column valve switch integrated device so as to control the column valve switch integrated device to execute corresponding operation. The invention has the effect of solving the problem of oil stain deposition at the unloading port of the dryer caused by oil discharge along with gas in the unloading state of the air compressor.
Description
Technical Field
The invention relates to the technical field of air compressors, in particular to a vehicle brake system, an unloading method of an air compressor assembly and a vehicle.
Background
This section provides background information related to the present disclosure only and is not necessarily prior art.
The existing brake system of the vehicle air compressor has two unloading schemes, namely air inlet unloading and air exhaust unloading, wherein the air inlet unloading is divided into single-cylinder air inlet unloading and double-cylinder air inlet unloading. The single-cylinder air inlet unloading is to make the air inlet cavity bypass to be normally opened, and to suck air from where and discharge the air from where; the double-cylinder air inlet unloading is that two cylinders are conducted back and forth, part of air is guided by the two cylinders back and forth, meanwhile, the exhaust valve sheet is opened, part of air is discharged backwards, and the air is discharged to the atmosphere through the unloading port of the dryer.
And the oil carried to the atmosphere through the unloading port of the dryer can be attached to the unloading port, so that the problem of oil stain deposition at the unloading port can be caused for a long time. Because the existing air inlet unloading device is relatively complicated and has a sealing structure, a spring reset structure and cover plate sealing and the like, carbon deposition clamping stagnation often occurs, the air compressor is always in an unloading state, and the air compressor has faults of abnormal inflation and the like.
Disclosure of Invention
The invention aims to at least solve the problem of oil stain deposition at an unloading port of a dryer caused by oil discharge along with gas in an unloading state of an air compressor. The purpose is realized by the following technical scheme:
the invention provides a vehicle brake system in a first aspect, which comprises an engine, an intercooler, a supercharger, an air filter, a dryer and an air storage tank, and further comprises
The air compressor assembly comprises an air compressor main body and a column valve switch integrated device, wherein the column valve switch integrated device is installed on the air compressor main body and is used for controlling the communication between an air inlet cavity and an air exhaust cavity of the air compressor main body and controlling the opening and closing of an air exhaust port of the air compressor main body; the air inlet of the air compressor main body is connected with the air filter through a pipeline, and the air outlet is connected with the dryer through a pipeline;
the pressure signal sensor is arranged at the opening 23 of the dryer and is used for monitoring the pressure of the air storage tank;
and the ECU is used for receiving a pressure signal, generating a control signal according to the pressure signal and outputting the control signal to the column valve switch integrated device so as to control the column valve switch integrated device to execute corresponding operation.
According to the vehicle braking system, after the pressure of the air storage tank is monitored by the pressure signal sensor to reach the rated pressure, the pressure signal is transmitted to the ECU, the ECU sends a switching signal to the column valve switch integrated device on the air compressor main body after receiving the pressure signal, and the column valve switch integrated device controls the communication between the air inlet cavity and the air outlet cavity of the air compressor main body and the closing of the air outlet of the air compressor main body, so that the air compressor is completely unloaded. The air compressor does not have any oily gas to enter the unloading port through the exhaust pipeline, so that the problem of greasy dirt deposition at the unloading port of the dryer caused by oil discharge along with gas in the unloading state of the air compressor is solved.
In addition, the vehicle brake system according to the present invention may further have the following additional technical features:
in some embodiments of the invention, the air compressor main body comprises a cylinder body and a cylinder cover, the cylinder cover is installed at the top of the cylinder body, the cylinder cover is recessed towards the bottom surface of the cylinder body to form an air inlet cavity and an air exhaust cavity, and the air inlet cavity and the air exhaust cavity are communicated through vent holes; the cylinder cover is provided with the air inlet and the air outlet, the air inlet is communicated with the air inlet cavity, and the air outlet is communicated with the air exhaust cavity;
the top surface of cylinder cap still is provided with first cylinder hole and second cylinder hole, first cylinder hole with the air vent intercommunication sets up, the second cylinder hole with the gas vent intercommunication sets up, just column valve switch integrated device installs in the cylinder hole.
In some embodiments of the present invention, the spool valve switch integrated device includes a relay and a spool valve, the relay is installed at the top end of the spool valve, the spool valve is rotatably connected with the relay, and a through hole is opened along the circumferential surface of the spool valve in the radial direction of the spool valve; the column valve switch integrated device is at least provided with two and comprises a first column valve switch integrated device and a second column valve switch integrated device, the first column valve switch integrated device is installed in the first cylindrical hole, and the second column valve switch integrated device is installed in the second cylindrical hole.
In some embodiments of the present invention, the through hole of the column valve of the first column valve switch integrated device is disposed corresponding to the vent hole, and the through hole of the column valve of the second column valve switch integrated device is disposed corresponding to the exhaust port.
In some embodiments of the invention, a first control line is provided between the ECU and the first column valve switch integrated device, and a second control line is provided between the ECU and the second column valve switch integrated device.
In some embodiments of the invention, a signal feedback line is provided between the ECU and the pressure signal sensor.
A second aspect of the present invention provides an unloading method of an air compressor assembly for unloading the air compressor assembly of the vehicle brake system according to the first aspect of the present invention, the unloading method of the air compressor assembly including the steps of:
presetting a rated pressure value and an operation instruction of a vehicle braking system;
receiving the pressure signal value of the port of the dryer 23;
selecting and determining an operation instruction according to the received pressure signal value;
and controlling the on-off of the column valve switch integrated device of the air compressor assembly according to an operation instruction.
A third aspect of the present invention provides a vehicle including a vehicle brake system according to the first aspect of the present invention, the vehicle brake system including the ECU for performing the unloading method of the air compressor assembly according to the second aspect of the present invention.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:
FIG. 1 is a schematic diagram of a vehicle braking system frame construction;
FIG. 2 is a schematic view of the air compressor assembly shown in FIG. 1;
fig. 3 is a schematic structural view of a cylinder cover of the air compressor in a first posture;
fig. 4 is a schematic structural view of a cylinder cover of the air compressor in a second posture;
FIG. 5 is a schematic structural diagram of a column valve switch integrated device;
FIG. 6 is a schematic diagram of the configuration of the spool valve in the conducting state;
FIG. 7 is a schematic structural view of a spool valve in a closed state;
fig. 8 is a flowchart of an unloading method of the air compressor assembly.
Reference numerals:
1. an engine; 10. an ECU; 101. a first control line; 102. a second control line; 103. a signal feedback line; 2. an intercooler; 3. a supercharger; 4. an air filter; 5. a dryer; 50. a port 23 of the dryer; 51. a pressure signal sensor; 6. a gas storage tank; 7. an air compressor assembly; 70. an air compressor main body; 701. a cylinder body; 702. a cylinder cover; 7020. an air inlet cavity; 7021. an exhaust chamber; 7022. a vent hole; 7023. an air inlet; 7024. an exhaust port; 7025. a first cylindrical bore; 7026. a second cylindrical bore; 71. a column valve switch integrated device; 710. a first spool valve switch integrated device; 711. a second column valve switch integrated device; 7110. a relay; 7111. a column valve; 7112. and (6) perforating.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1 to 2, according to an embodiment of the present invention, there is provided a vehicle brake system including an engine 1, an intercooler 2, a supercharger 3, an air filter 4, an air compressor assembly 7, a condensing device, a dryer 5, and an air tank 6, which are sequentially connected by a pipeline. The air compressor assembly 7 comprises an air compressor main body 70 and a column valve switch integrated device 71, wherein an air inlet 7023 of the air compressor main body 70 is connected with the air filter 4 through a pipeline, and an air outlet 7024 of the air compressor main body 70 is connected with the dryer 5 through a pipeline; the column valve switch integrated device 71 is mounted on the air compressor main body 70 and is used for controlling the communication between the air inlet cavity 7020 and the air outlet cavity 7021 of the air compressor main body 70 and the opening and closing of the air outlet 7024 of the air compressor main body 70.
A pressure sensor 51 is also included, the pressure sensor 51 being mounted at a port 50 of the dryer 23 (typically 4/23 is written on a port of the dryer 5, generally referred to as the dryer 23 port 50, for use in connection with a feedback port of the air compressor of the engine 1), the port 50 of the dryer 23 being typically in communication with the reservoir 6, the pressure sensor 51 being configured to monitor the pressure within the reservoir 6.
And the ECU10 is installed on the engine 1 and is used for receiving the pressure signals monitored and collected by the pressure signal sensor 51, generating control signals according to the pressure signals and outputting the control signals to the column valve switch integrated device 71, so as to control the column valve switch integrated device 71 to perform corresponding operations.
Specifically, the rated system pressure of the entire vehicle brake system is preset in the ECU10, after the pressure of the entire vehicle brake system reaches the rated system pressure, the pressure signal sensor 51 senses that the pressure of the air storage tank 6 reaches the rated system pressure for 2-3 s, the pressure signal is transmitted to the ECU10, and the ECU10 sends a switching signal to the column valve switch integrated device 71 on the air compressor main body 70 after receiving the pressure signal. The communication of the air intake and exhaust cavities of the air compressor main body 70 and the closing of the air exhaust port 7024 of the air compressor main body 70 are controlled by the column valve switch integrated device 71, so that the complete internal unloading of the air compressor is realized. At the moment, the air compressor does not have any gas containing oil to enter the unloading port through the exhaust pipeline, so that the problem of oil stain deposition at the unloading port of the dryer 5 caused by oil discharge along with gas in the unloading state of the air compressor is solved.
In some embodiments of the present invention, as shown in fig. 2 to 7, the air compressor main body 70 includes a cylinder block 701 and a cylinder cover 702, the cylinder cover 702 is installed on the top of the cylinder block 701, the cylinder cover 702 is recessed towards the bottom surface of the cylinder block 701 to form an air inlet cavity 7020 and an air outlet cavity 7021, and the air inlet cavity 7020 and the air outlet cavity 7021 are communicated through a vent 7022. An air inlet 7023 is formed in one side of the cylinder cover 702, an air outlet 7024 is formed in the other side, opposite to the air inlet 7023, the air inlet 7023 is communicated with an air inlet cavity 7020, and the air outlet 7024 is communicated with an air outlet cavity 7021.
The top surface of the cylinder cover 702 is further provided with a first cylindrical hole 7025 and a second cylindrical hole 7026, the first cylindrical hole 7025 is communicated with the vent 7022, the second cylindrical hole 7026 is communicated with the exhaust port 7024, and the column valve switch integrated device 71 is installed in the cylindrical holes.
The column valve switch integrated device 71 comprises a relay 7110 and a column valve 7111, wherein the relay 7110 is installed at the top end of the column valve 7111, the column valve 7111 is rotatably connected with the relay 7110, and a through hole 7112 is formed in the circumferential surface of the column valve 7111 in the radial direction. The column valve switch integrated devices 71 are at least two and comprise a first column valve switch integrated device 710 and a second column valve switch integrated device 711, the first column valve switch integrated device 710 is installed in the first cylindrical hole 7025, and the second column valve switch integrated device 711 is installed in the second cylindrical hole 7026.
Further, the through hole 7112 of the upper pillar valve 7111 of the first pillar valve switch integrated device 710 is disposed corresponding to the vent 7022, and the through hole 7112 of the upper pillar valve 7111 of the second pillar valve switch integrated device 711 is disposed corresponding to the exhaust port 7024.
Specifically, the ECU10 sends switching signals to the first column valve switch integration device 710 and the second column valve switch integration device 711 at the same time after receiving the pressure signal. The relay 7110 in the first column valve switch integrated device 710 and the second column valve switch integrated device 711 controls the column valve 7111 to rotate 90 degrees in the corresponding first cylindrical hole 7025 and second cylindrical hole 7026 on the cylinder cover 702, the column valve 7111 on the first column valve switch integrated device 710 rotates and then is communicated with the vent 7022, meanwhile, after the column valve 7111 on the second column valve switch integrated device 711 rotates, the exhaust port 7024 is completely sealed by the cylindrical surface of the column valve 7111 on the second column valve switch integrated device 711, at the moment, gas still exhausted from the main body of the air compressor through the internal exhaust valve plate enters the air inlet cavity 7020 through the vent 7022 and is sucked into the cylinder 701, and therefore complete internal unloading of the air compressor is achieved repeatedly.
Conversely, as the whole vehicle runs and brakes, the gas in the gas storage tank 6 is gradually consumed, when the pressure signal sensor 51 at the opening 50 of the dryer 23 senses that the pressure in the gas storage tank 6 is lower than a set pressure value (the whole vehicle is set to 70% of the system pressure of the switch device 711 of the rated second column valve 7111), the pressure signal sensor 51 transmits the signal to the ECU10, and the ECU10 feeds back a corresponding switch signal to the first column valve switch integrated device 710 and the second column valve switch integrated device 711. At this time, the corresponding column valves 7111 in the first column valve switch integrated device 710 and the second column valve switch integrated device 711 rotate in the reverse direction by 90 degrees, the vent holes 7022 are closed, the exhaust ports 7024 are opened, and the air compressor main body 70 inflates the air storage tank 6.
In some embodiments of the present invention, as shown in fig. 1-2, a first control line 101 is provided between the ECU10 and the first spool switch integrated device 710, and a second control line 102 is provided between the ECU10 and the second spool switch integrated device 711. A signal feedback line 103 is provided between the ECU10 and the pressure signal sensor 51. In the embodiment, the ECU10 is connected with the first column valve switch integrated device 710 and the second column valve switch integrated device 711 by using wired lines, and the wired line connection is generally less interfered, so that the reliability and the confidentiality are high; wireless connections may also be employed in some other embodiments. The signal feedback line 103 between the ECU10 and the pressure signal sensor 51 is a wireless connection and is not limited by a wired connection.
As shown in fig. 8, a second aspect of the present invention provides an unloading method of an air compressor assembly for unloading an air compressor assembly of a vehicle brake system according to the first aspect of the present invention, the unloading method of an air compressor assembly comprising the steps of:
presetting a rated pressure value and an operation instruction of a vehicle braking system;
receiving the pressure signal value of the port 50 of the dryer 23;
selecting and determining an operation instruction according to the received pressure signal value;
and controlling the on-off of the column valve switch integrated device 71 of the air compressor assembly 7 according to an operation instruction.
The unloading method of the air compressor assembly according to the second aspect of the present invention determines whether to execute the corresponding operation command according to the pressure signal value of the port 50 of the dryer 23. Specifically, after the pressure of the brake system of the entire vehicle is judged to reach the rated system pressure, and the pressure signal sensor 51 senses that the pressure of the air storage tank 6 reaches the rated system pressure for 2-3 s, the pressure signal at the moment is transmitted to the ECU10, and after receiving the pressure signal, the ECU10 sends a switching signal to the first column valve switch integrated device 710 and the second column valve switch integrated device 711 through the first control line 101 and the second control line 102 at the same time according to a preset operation instruction. The communication between the air inlet cavity 7020 and the exhaust cavity 7021 of the air compressor main body 70 and the closing of the exhaust port 7024 of the air compressor main body 70 are controlled by the column valve switch integrated device 71, and meanwhile, the air exhausted by the air compressor through an internal exhaust valve sheet still enters the air inlet cavity 7020 and is sucked into the air compressor main body 70, so that the complete internal unloading of the air compressor is realized.
On the contrary, when it is judged that the pressure in the air tank 6 is lower than the set pressure value (generally, the entire vehicle is set to 70% of the rated system pressure), the pressure signal sensor 51 transmits the signal to the ECU10 through the signal feedback line 103, and the ECU10 feeds back corresponding switching signals to the first column valve switch integrated device 710 and the second column valve switch integrated device 711 through the first control line 101 and the second control line 102. At this time, the corresponding column valves 7111 in the first column valve switch integrated device 710 and the second column valve switch integrated device 711 rotate in the reverse direction by 90 degrees, the vent holes 7022 are closed, the exhaust ports 7024 are opened, and the air compressor main body 70 inflates the air storage tank 6.
The invention also provides a vehicle comprising a vehicle brake system, wherein the vehicle brake system is the vehicle brake system provided by the first aspect of the invention and comprises the ECU10, and the ECU10 is used for executing the unloading method of the air compressor assembly provided by the second aspect of the invention.
After the air compressor is installed on a vehicle, the air inlet cavity 7020 of the air compressor is communicated with the exhaust cavity 7021 after the pressure of a braking system reaches the rated pressure through an electric control technical means, and meanwhile, the exhaust port 7024 of the air compressor for exhausting air backwards is completely sealed, so that the air compressor is completely unloaded internally, no air of the air compressor reaches the unloading port of the dryer 5 through an exhaust pipeline in the unloading state, and the problem of oil stain deposition of the unloading port of the dryer 5 caused by oil discharge along with air in the unloading state of the air compressor is completely solved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides a vehicle braking system, includes engine, intercooler, booster, empty filter, desicator and gas holder, its characterized in that: also comprises
The air compressor assembly comprises an air compressor main body and a column valve switch integrated device, wherein the column valve switch integrated device is installed on the air compressor main body and is used for controlling the communication between an air inlet cavity and an air exhaust cavity of the air compressor main body and controlling the opening and closing of an air exhaust port of the air compressor main body; the air inlet of the air compressor main body is connected with the air filter through a pipeline, and the air outlet is connected with the dryer through a pipeline;
the pressure signal sensor is arranged at the opening 23 of the dryer and is used for monitoring the pressure of the air storage tank;
and the ECU is used for receiving a pressure signal, generating a control signal according to the pressure signal and outputting the control signal to the column valve switch integrated device so as to control the column valve switch integrated device to execute corresponding operation.
2. The vehicle braking system according to claim 1, characterized in that: the air compressor main body comprises a cylinder body and a cylinder cover, the cylinder cover is installed at the top of the cylinder body, the cylinder cover is recessed towards the bottom surface of the cylinder body to form an air inlet cavity and an air exhaust cavity, and the air inlet cavity is communicated with the air exhaust cavity through a vent hole; the cylinder cover is provided with the air inlet and the air outlet, the air inlet is communicated with the air inlet cavity, and the air outlet is communicated with the air exhaust cavity;
the top surface of cylinder cap still is provided with first cylinder hole and second cylinder hole, first cylinder hole with the air vent intercommunication sets up, the second cylinder hole with the gas vent intercommunication sets up, just column valve switch integrated device installs in the cylinder hole.
3. The vehicle braking system according to claim 2, characterized in that: the column valve switch integrated device comprises a relay and a column valve, wherein the relay is installed at the top end of the column valve, the column valve is rotatably connected with the relay, and through holes are formed in the circumferential surface of the column valve along the radial direction of the column valve; the column valve switch integrated device is at least provided with two and comprises a first column valve switch integrated device and a second column valve switch integrated device, the first column valve switch integrated device is installed in the first cylindrical hole, and the second column valve switch integrated device is installed in the second cylindrical hole.
4. A vehicle braking system according to claim 3, characterized in that: the through holes of the column valve of the first column valve switch integrated device correspond to the vent holes, and the through holes of the column valve of the second column valve switch integrated device correspond to the exhaust ports.
5. A vehicle braking system according to claim 3, characterized in that: and a first control circuit is arranged between the ECU and the first column valve switch integrated device, and a second control circuit is arranged between the ECU and the second column valve switch integrated device.
6. The vehicle braking system according to claim 1, characterized in that: and a signal feedback line is arranged between the ECU and the pressure signal sensor.
7. The unloading method of the air compressor assembly is characterized in that: the unloading method of the air compressor assembly for unloading the air compressor assembly of the vehicle brake system according to any one of claims 1 to 6, comprising the steps of:
presetting a rated pressure value and an operation instruction of a vehicle braking system;
receiving the pressure signal value of the port of the dryer 23;
selecting and determining an operation instruction according to the received pressure signal value;
and controlling the on-off of the column valve switch integrated device of the air compressor assembly according to an operation instruction.
8. A vehicle, characterized in that: the vehicle comprises a vehicle brake system according to any one of claims 1 to 6, the vehicle brake system comprising the ECU, the ECU being configured to perform the unloading method of the air compressor assembly according to claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110343563.0A CN113153699A (en) | 2021-03-30 | 2021-03-30 | Vehicle braking system, unloading method of air compressor assembly and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110343563.0A CN113153699A (en) | 2021-03-30 | 2021-03-30 | Vehicle braking system, unloading method of air compressor assembly and vehicle |
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| CN113153699A true CN113153699A (en) | 2021-07-23 |
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| CN202110343563.0A Pending CN113153699A (en) | 2021-03-30 | 2021-03-30 | Vehicle braking system, unloading method of air compressor assembly and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113958491A (en) * | 2021-11-17 | 2022-01-21 | 潍柴动力股份有限公司 | Air compressor inflation system and method |
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| CN208311010U (en) * | 2018-05-17 | 2019-01-01 | 瑞立美联制动技术（廊坊）有限公司 | The Vehicular air compression set of gasification Grease relief can be reduced |
| CN110410208A (en) * | 2019-07-19 | 2019-11-05 | 东风商用车有限公司 | A kind of booster and air compressor machine United Assistant Brake system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113958491A (en) * | 2021-11-17 | 2022-01-21 | 潍柴动力股份有限公司 | Air compressor inflation system and method |
| CN113958491B (en) * | 2021-11-17 | 2024-05-17 | 潍柴动力股份有限公司 | Air compressor inflation system and method |
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