CN219369126U - Vehicle braking system travel simulator detection device - Google Patents
Vehicle braking system travel simulator detection device Download PDFInfo
- Publication number
- CN219369126U CN219369126U CN202223370591.0U CN202223370591U CN219369126U CN 219369126 U CN219369126 U CN 219369126U CN 202223370591 U CN202223370591 U CN 202223370591U CN 219369126 U CN219369126 U CN 219369126U
- Authority
- CN
- China
- Prior art keywords
- electromagnetic valve
- detection
- air inlet
- detection device
- detection cylinder
- 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
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Regulating Braking Force (AREA)
Abstract
The utility model provides a detection device of a travel simulator of a vehicle braking system, which comprises a detection cylinder, a vacuum generator and a conversion electromagnetic valve capable of converting internal connection gas paths; the detection cylinder comprises a detection cylinder body and a telescopic piston sleeve, a plurality of air pipe connectors are arranged on the conversion electromagnetic valve, and the detection cylinder body is connected with the conversion electromagnetic valve through an air pipe; the switching electromagnetic valve is connected with the vacuum generator through a first connecting pipe; the switching solenoid valve is also provided with an air inlet pipe, and the air inlet pipe is also provided with a pressure regulating valve. The beneficial effects of the utility model are as follows: the detection device can guide high-pressure gas into the detection cylinder through the air inlet pipe, and adjust the air pressure in the detection cylinder through the pressure regulating valve, so that the stroke simulator is retracted, the purpose of detection of the stroke simulator is achieved, the device is simple in structure and small in size, the requirement of use under a narrow space can be met, the stroke simulator is detected on a vehicle, and the detection efficiency and reliability of the displacement simulator can be improved.
Description
Technical Field
The utility model relates to the technical field of vehicle detection devices, in particular to a vehicle braking system travel simulator detection device.
Background
A displacement simulator is generally provided in a vehicle brake system, and functions to connect a pedal assembly and a hydraulic assist assembly, and transmit a force of the pedal assembly to a power spool of the hydraulic assist assembly while absorbing displacement of the pedal assembly. The displacement simulator generally comprises an outer shell and a thrust shaft positioned in the outer shell, wherein the outer shell and the power-assisted valve core are connected with a pedal assembly, the rigidity of the displacement simulator (namely the magnitude of the force caused by the retraction of the thrust shaft of the displacement simulator) determines the foot feeling of a brake pedal (namely the pedaling force required during braking), and in order to ensure the consistency of a vehicle braking system, the displacement simulator installed in the vehicle needs to be detected before the vehicle leaves a factory. The existing displacement simulator detection device is large in size, the displacement simulator needs to be detached from the vehicle during detection, in-vehicle detection of the displacement simulator is inconvenient, and detection efficiency and detection reliability of the displacement simulator are reduced.
Disclosure of Invention
In view of this, in order to improve the detection efficiency and reliability of displacement simulator, the utility model provides a vehicle braking system travel simulator detection device, comprising a detection cylinder, a vacuum generator and a switching electromagnetic valve capable of switching internal connection gas paths;
the detection cylinder comprises a detection cylinder body and a telescopic piston sleeve, the telescopic piston sleeve is telescopically arranged in the detection cylinder body, and the outer shell of the stroke simulator to be detected is arranged in the telescopic piston sleeve;
the switching electromagnetic valve is provided with a plurality of air pipe connectors, and the detection cylinder body is arranged on the switching electromagnetic valve through an air duct; the switching electromagnetic valve is connected with the vacuum generator through a first connecting pipe;
the switching solenoid valve is also provided with an air inlet pipe, and the air inlet pipe is also provided with a pressure regulating valve.
Further, the detection cylinder inner wall is also embedded with a circle of sealing ring, and the sealing ring seals a gap between the detection cylinder inner wall and the outer wall of the telescopic piston sleeve.
Further, a second connecting pipe is arranged between the switching electromagnetic valve and the vacuum generator.
Further, the vacuum generator is also connected with an exhaust pipe.
Further, the air inlet end of the air inlet pipe is connected with a high-pressure air source, a filter is further arranged on the air inlet pipe, and the filter is positioned between the air inlet end of the air inlet pipe and the pressure regulating valve.
Further, the detection device also comprises a control relay, and the control relay is connected with the switching electromagnetic valve.
Further, the switching solenoid valve is a two-position five-way solenoid valve.
The utility model relates to a vehicle brake system travel simulator detection device, which has the beneficial effects that: the detection device comprises a detection cylinder, a vacuum generator and a conversion electromagnetic valve, wherein the conversion electromagnetic valve is provided with an air inlet pipe, the air inlet pipe is provided with a pressure regulating valve and is connected with a high-pressure air source, the detection device can guide high-pressure air into the detection cylinder through the air inlet pipe, and the pressure in the detection cylinder is regulated through the pressure regulating valve to retract a stroke simulator, so that the purpose of detection of the stroke simulator is achieved, and the device is simple in structure and small in volume; the device adopts a pipe body structure, can meet the requirement of use in a narrow space, and enables the stroke simulator to detect on the vehicle, so that the detection efficiency of the displacement simulator can be improved, the detection environment of the displacement simulator is more in line with the actual scene, and the reliability of the detection result is improved.
Drawings
Fig. 1 is a schematic structural diagram of a travel simulator detection device for a vehicle braking system according to an embodiment of the present utility model.
In the figure: 1-detecting cylinder body, 11-telescopic piston sleeve, 12-sealing ring, 13-air duct, 2-stroke simulator, 21-outer shell, 22-thrust shaft, 3-switching electromagnetic valve, 31-first connecting pipe, 32-second connecting pipe, 4-vacuum generator, 41-exhaust pipe, 5-air inlet pipe, 51-filter, 52-pressure regulating valve and 6-control relay.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be further described with reference to the accompanying drawings.
Referring to fig. 1, a vehicle brake system travel simulator detection device includes a detection cylinder 1, a vacuum generator 4, and a switching electromagnetic valve 3 capable of switching an internal connection gas path;
the detection cylinder comprises a detection cylinder body 1 and a telescopic piston sleeve 11, the detection cylinder body 1 and the telescopic piston sleeve 11 are of cylindrical structures, the diameter of the telescopic piston sleeve 11 is slightly smaller than that of the detection cylinder body 1, a sealing ring 12 of a circular ring structure is further embedded into the inner wall of the detection cylinder body 1, the sealing ring 12 is preferably made of rubber, the telescopic piston sleeve 11 is arranged in the detection cylinder body 1 in a telescopic (sliding mode), and a gap between the inner wall of the detection cylinder body and the outer wall of the telescopic piston sleeve is sealed by the sealing ring 13.
The stroke simulator 2 to be tested comprises an outer shell 21 and a thrust shaft 22 which is arranged in the outer shell 21 in a telescopic manner, an elastic piece which provides elastic force is arranged in the outer shell 21, and when the stroke simulator 2 is tested, the outer shell of the stroke simulator 2 is fixed in the telescopic piston sleeve 11, and the thrust shaft 22 of the stroke simulator 2 is kept fixed (supported on a brake pedal assembly).
The switching solenoid valve is provided with at least four air pipe connectors, in this embodiment, the switching solenoid valve is a two-position five-way solenoid valve, the two-position five-way solenoid valve is provided with five air pipe connectors, and the switching solenoid valve can switch the communication state of the five air pipe connectors. In this embodiment, the two-position five-way electromagnetic valve enables four air pipe connectors (the other air pipe connector is closed) to be A, B, S, P, wherein the two-position five-way electromagnetic valve controls the four air pipe connectors to switch in two states; state one: the P-A air pipe interface is conducted, other interfaces are closed, and the state is that: and the P-B air pipe interface and the S-A air pipe interface are conducted.
The detection cylinder body 1 is connected to an A air pipe interface on the conversion electromagnetic valve through an air guide pipe; the switching electromagnetic valve is connected with the vacuum generator through a first connecting pipe 31, wherein the first connecting pipe 31 is connected to the B air pipe interface; the P air pipe interface of the conversion electromagnetic valve 3 is also provided with an air inlet pipe 5, the air inlet pipe is provided with a pressure regulating valve 52 capable of displaying the pressure, the air inlet end of the air inlet pipe is connected with a high-pressure air source, the air inlet pipe 5 is also provided with a filter 51, the filter 51 is positioned between the air inlet end of the air inlet pipe and the pressure regulating valve 52, the high-pressure air source provides high-pressure air for the device, and the filter 51 filters impurities in the air entering the conversion electromagnetic valve 3.
A second connecting pipe 32 is arranged between the switching electromagnetic valve and the vacuum generator, wherein the second connecting pipe 32 is connected to the S gas pipe interface. The vacuum generator 4 is also connected with an exhaust pipe 41, and the vacuum generator 4 can vacuumize the detection cylinder body 1 under the drive of high-pressure gas.
Further, the detection device further comprises a control relay 6, the control relay 6 is connected with the switching electromagnetic valve 3, and the control relay 6 is used for controlling the switching electromagnetic valve 3 so that the switching electromagnetic valve 3 can switch the pipeline connection state.
Further, the air duct 13, the first connecting pipe 31, the second connecting pipe 32, the air outlet pipe 41 and the air inlet pipe 5 are all flexible pipe structures, so that the convenience of using the detection device in a narrow space can be improved.
The utility model relates to a detection device of a travel simulator of a vehicle braking system, which comprises the following working processes: when the detection device works, the shell head 21 end of the stroke simulator 2 is dismounted and inserted into the telescopic piston sleeve 11, and the thrust shaft 22 end of the stroke simulator 2 is fixed; connecting the air inlet end of the air inlet pipe 5 to a high-pressure air source; the P-A air pipe interface is conducted through the control relay 5, air in the high-pressure air source enters the detection cylinder body 1, the air pressure in the detection cylinder body 1 is increased, the air pressure in the detection cylinder body 1 is regulated through the pressure regulating valve 52 until the telescopic piston sleeve 11 pushes the outer shell 21 of the stroke simulator 2 to move relative to the thrust shaft 22, the stroke simulator 2 is retracted, the pressure of retraction of the stroke simulator 2 can be obtained by recording the indication of the pressure regulating valve 52, and therefore the detection of the retraction pressure of the stroke simulator 2 is completed; the P-B air pipe interface and the S-A air pipe interface are conducted through the control relay, high-pressure air in the high-pressure air source enters the vacuum generator 5 through the first connecting pipe 31, the vacuum generator 5 is driven to operate to vacuumize the detection cylinder body 1, the telescopic piston sleeve 11 is retracted and reset, and detection of the next stroke simulator 2 can be started.
In this document, terms such as front, rear, upper, lower, etc. are defined with respect to the positions of the components in the drawings and with respect to each other, for clarity and convenience in expressing the technical solution. It should be understood that the use of such orientation terms should not limit the scope of the protection sought herein.
The embodiments described above and features of the embodiments herein may be combined with each other without conflict.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (7)
1. A vehicle braking system travel simulator detection device is characterized in that: the device comprises a detection cylinder, a vacuum generator and a conversion electromagnetic valve capable of converting an internal connection gas circuit;
the detection cylinder comprises a detection cylinder body and a telescopic piston sleeve, the telescopic piston sleeve is telescopically arranged in the detection cylinder body, and the outer shell of the stroke simulator to be detected is arranged in the telescopic piston sleeve;
the conversion electromagnetic valve is provided with a plurality of air pipe connectors, and the detection cylinder body is connected with the conversion electromagnetic valve through an air duct; the switching electromagnetic valve is connected with the vacuum generator through a first connecting pipe;
the switching solenoid valve is also provided with an air inlet pipe, and the air inlet pipe is also provided with a pressure regulating valve.
2. A vehicle braking system travel simulator detection device according to claim 1, wherein: the detection cylinder body inner wall is further embedded with a circle of sealing ring, and the sealing ring seals a gap between the detection cylinder body inner wall and the telescopic piston sleeve outer wall.
3. A vehicle braking system travel simulator detection device according to claim 1, wherein: and a second connecting pipe is arranged between the switching electromagnetic valve and the vacuum generator.
4. A vehicle braking system travel simulator detection device according to claim 1, wherein: and the vacuum generator is also connected with an exhaust pipe.
5. A vehicle braking system travel simulator detection device according to claim 1, wherein: the air inlet end of the air inlet pipe is connected with a high-pressure air source, a filter is further arranged on the air inlet pipe, and the filter is positioned between the air inlet end of the air inlet pipe and the pressure regulating valve.
6. A vehicle braking system travel simulator detection device according to claim 1, wherein: the detection device also comprises a control relay, and the control relay is connected with the switching electromagnetic valve.
7. A vehicle braking system travel simulator detection device according to claim 1, wherein: the switching electromagnetic valve is a two-position five-way electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223370591.0U CN219369126U (en) | 2022-12-14 | 2022-12-14 | Vehicle braking system travel simulator detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223370591.0U CN219369126U (en) | 2022-12-14 | 2022-12-14 | Vehicle braking system travel simulator detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219369126U true CN219369126U (en) | 2023-07-18 |
Family
ID=87151251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223370591.0U Active CN219369126U (en) | 2022-12-14 | 2022-12-14 | Vehicle braking system travel simulator detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219369126U (en) |
-
2022
- 2022-12-14 CN CN202223370591.0U patent/CN219369126U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104502116B (en) | Hydraulic analog test device and its system and method for testing | |
| CN110466490A (en) | A kind of redundancy vacuum boost system of the brake of electric vehicle based on double electric vacuum pumps | |
| CN219369126U (en) | Vehicle braking system travel simulator detection device | |
| CN103362882A (en) | Gas-liquid pressurization cylinder | |
| CN202040145U (en) | Multistage locking cylinder | |
| CN203611213U (en) | Pipeline separation mechanism | |
| CN105270378A (en) | Vehicle brake assisting system | |
| CN102493916B (en) | Off-course hydraulic braking device of wind generating set | |
| CN109159775A (en) | A kind of electric mechanical supercharge control system and its control method | |
| CN205562176U (en) | Electronic helping hand braking test rack | |
| CN208270211U (en) | A kind of hydraulic assisting brake device testing stand for performance test | |
| CN115978116A (en) | Brake air chamber convenient to equipment | |
| CN206290519U (en) | Retractable actuating cylinder hydraulic circuit components | |
| CN204941667U (en) | Vehicular oil engine automatic fume exhauster | |
| CN103573726A (en) | Gas-liquid pressurizing cylinder device | |
| CN210502648U (en) | Integrated electromagnetic power-assisted brake | |
| CN201802506U (en) | Hydraulic device for debugging engine jet pipe | |
| CN110422154A (en) | A kind of fuel cell automobile hydrogen servobrake system | |
| CN216546136U (en) | Emergency braking system of trackless rubber-tyred vehicle with mining electric-control explosion-proof diesel engine | |
| CN216382078U (en) | Adjustable constant-resistance oil cylinder | |
| CN210290294U (en) | Pressurizing oil cylinder | |
| CN211598951U (en) | Dry gas sealing device for circulating gas compressor | |
| CN212155901U (en) | Relay valve assembly that security performance is high | |
| CN202054011U (en) | Air supercharging device used on automobile brake system | |
| CN214267591U (en) | Brake device with built-in pressure sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |