CN107813806B - Pressure relief assembly and electronic hydraulic booster - Google Patents
Pressure relief assembly and electronic hydraulic booster Download PDFInfo
- Publication number
- CN107813806B CN107813806B CN201711250779.2A CN201711250779A CN107813806B CN 107813806 B CN107813806 B CN 107813806B CN 201711250779 A CN201711250779 A CN 201711250779A CN 107813806 B CN107813806 B CN 107813806B
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- valve
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- pressure
- cavity
- relief assembly
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- 239000002184 metal Substances 0.000 claims abstract description 39
- 238000007789 sealing Methods 0.000 claims description 15
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract description 9
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- 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
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
- B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The invention relates to the technical field of electronic hydraulic control braking systems, in particular to a pressure relief assembly and an electronic hydraulic booster, wherein the pressure relief assembly is used for the electronic hydraulic booster with a low-pressure cavity, the pressure relief assembly is arranged in the low-pressure cavity, and the pressure relief assembly comprises: an output push rod with an installation cavity and a pressure relief valve; the pressure relief valve includes; the valve spring is arranged in the mounting cavity, and the first end of the valve spring is abutted against the inner wall of the mounting cavity; the plug is arranged in the mounting cavity and extends to the outer side of the end face of the output push rod; the valve is arranged between the valve spring and the plug; the metal rod is arranged in the valve and extends to the outer side of the end face of the plug; when the metal rod is subjected to external force, the metal rod is retracted against the valve and the valve spring, so that the end faces of the valve and the plug are separated, and the pressure in the low-pressure cavity is released. By installing the pressure relief valve in the installation cavity, the metal rod is retracted against the valve and the valve spring when the braking fails, so that the end surfaces of the valve and the plug are separated to release the pressure in the low-pressure cavity.
Description
Technical Field
The invention relates to the technical field of electronic hydraulic control braking systems, in particular to a pressure relief assembly and an electronic hydraulic booster.
Background
The electronic hydraulic power-assisted braking system is a new technology which is emerging in recent years, is used for replacing a vacuum booster and a vacuum pump on a traditional fuel vehicle, and is a new energy vehicle, an electric vehicle and a product braking system required by unmanned driving. Under the condition of considering failure, the requirement of a braking system is met, an international supplier generally adopts an electromagnetic valve to control a pressure relief mode, the opening and closing of a channel are controlled by switching on and off, the electromagnetic valve is relatively expensive, the processing cost is increased, moreover, a controller is required to independently control logic of the electromagnetic valve, and a plurality of defects such as control difficulty are increased.
Disclosure of Invention
In view of the above, the invention aims to provide a pressure relief assembly and an electro-hydraulic booster, based on which pressure relief assembly can be used for relieving pressure when the booster fails.
The invention provides a pressure relief assembly and an electro-hydraulic booster.
To achieve the above object, a first aspect of the present invention provides a pressure relief assembly for an electro-hydraulic booster having a low pressure chamber, the pressure relief assembly being disposed in the low pressure chamber, the low pressure chamber being connected to a pedal simulator, the pressure relief assembly comprising: an output push rod with an installation cavity and a pressure relief valve; the pressure relief valve comprises; the valve spring is arranged in the mounting cavity, and the first end of the valve spring is abutted against the inner wall of the mounting cavity; the plug is arranged in the mounting cavity and extends to the outer side of the end face of the output push rod; the valve is arranged between the valve spring and the plug; the metal rod is arranged in the valve and extends to the outer side of the end face of the plug; when the metal rod is subjected to external force, the metal rod is retracted against the valve and the valve spring, so that the end faces of the valve and the plug are separated, and the metal rod is used for releasing the pressure in the low-pressure cavity and the pedal simulator.
Compared with the prior art, the invention has the beneficial effects that:
According to the pressure relief assembly provided by the invention, the pressure relief valve is arranged in the installation cavity, so that the metal rod is retracted against the valve and the valve spring when the power assistance fails, and the end faces of the valve and the plug are separated to release the pressure in the low-pressure cavity.
Optionally, in the pressure relief assembly, the valve includes a spring mounting portion and a sealing portion, wherein the spring mounting portion is fixedly connected to the second end of the valve spring.
Optionally, in the pressure relief assembly, when the metal rod is not subjected to external force, the sealing portion is attached to an end face of the plug to form a seal.
Optionally, in the pressure relief assembly, the metal rod has a mounting portion and an extension portion, wherein the mounting portion is mounted inside the spring mounting portion, and the extension portion penetrates through a through hole in the middle of the plug.
Optionally, in the pressure relief assembly, an outer diameter of the valve is smaller than an inner diameter of the mounting cavity; the diameter of the extension is smaller than the diameter of the through hole.
Optionally, in the pressure relief assembly, an end face of the output push rod, an end face of the plug and an end face of the metal rod form a conical structure.
Optionally, in the pressure relief assembly, a through cavity is formed in the middle of the output push rod, and the through cavity is communicated with the installation cavity.
Optionally, in the pressure relief assembly, a diameter of the mounting cavity is larger than a diameter of the through cavity.
Optionally, in the pressure relief assembly, a spring seat is further included that is mounted in the low pressure chamber.
Optionally, in the pressure relief assembly, a gap is provided between the spring seat and the metal rod.
Optionally, in the pressure relief assembly, the spring seat is provided with four cross grooves or through holes.
In a second aspect, the invention provides an electro-hydraulic booster comprising a low pressure chamber and a pressure relief assembly as described, the pressure relief assembly being located within the low pressure chamber, the low pressure chamber being connected to a pedal simulator such that the pressure relief assembly releases pressure within the low pressure chamber and the pedal simulator.
According to the electro-hydraulic booster provided by the second aspect of the invention, the pressure relief assembly provided by any one of the embodiments of the first aspect is provided, so that the electro-hydraulic booster has all the beneficial effects of the pressure relief assembly provided by any one of the embodiments of the first aspect, and the details are not repeated herein.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a cross-sectional view of a pressure relief assembly according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a valve and metal stem of a pressure relief assembly in accordance with one embodiment of the present invention;
FIG. 3 is a cross-sectional view of an electro-hydraulic booster in accordance with one embodiment of the present invention;
FIG. 4 is a side view of a valve in one embodiment of the invention.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a further description of the application will be rendered by reference to specific embodiments thereof which are appended drawings. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced otherwise than as described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
As shown in fig. 1 and 2, an embodiment of the first aspect of the present invention provides a pressure relief assembly for an electro-hydraulic booster having a low pressure chamber 15, the pressure relief assembly being disposed within the low pressure chamber 15, the pressure relief assembly comprising. An output pushrod 18 with a mounting cavity 181 and a pressure relief valve. The pressure relief valve includes; the valve spring 11 is arranged in the mounting cavity 181, and the first end of the valve spring 11 is abutted against the inner wall of the mounting cavity 181; a plug 8 mounted in the mounting cavity 181 and extending to the outside of the end face of the output pushrod 18; a valve 10 disposed between the valve spring 11 and the plug 8; and a metal rod 103 installed inside the valve 10 and extending to the outside of the end face of the plug 8; wherein, when the metal rod 103 receives an external force, the metal rod 103 is retracted against the valve 10 and the valve spring 11 to separate the end surfaces of the valve 10 and the plug 8 for releasing the pressure in the low pressure chamber 15 and the pedal simulator 12.
In the pressure relief assembly provided by the invention, the pressure relief valve is arranged in the installation cavity 181, so that the metal rod 103 is retracted against the valve 10 and the valve spring 11 when the power assistance fails, and the end surfaces of the valve 10 and the plug 8 are separated to release the pressure in the low pressure cavity 15.
In one embodiment, the valve 10 includes a spring mounting portion 101 and a sealing portion 102, and further, the valve 10 is made of rubber, and is fixedly connected to the second end of the valve spring 11 through the spring mounting portion 101, the diameter of the spring mounting portion 101 of the valve 10 is smaller than that of the second end of the valve spring 11, so that the spring mounting portion 101 can be clamped into the second end of the valve spring 11, the spring mounting portion 101 is fixedly connected to the valve spring 11, and the problem of failure in extrusion caused by displacement when the valve 10 extrudes the valve spring 11 is avoided. Further, the spring mounting portion 101 and the sealing portion 102 are integrally formed, and a mounting cavity for mounting the metal rod 103 is provided in the valve 10, and a convex ring engaged with the metal rod 103 is machined in the mounting cavity. The rubber valve 10 is wrapped on the metal rod 103, rubber plays a role in sealing, and the larger part on the left side of the inner metal can strengthen the strength of the contact surface of the rubber and the spring.
In one embodiment, when the metal rod 103 is not subjected to an external force, the sealing portion 102 is fitted with the end face of the plug 8 to form a seal. In case of failure, the sealing part 102 is always attached to the end face of the plug 8, and pressure relief is avoided. Further the diameter of the sealing portion 102 is larger than the diameter of the spring mounting portion 101 to bear against the second end of the valve spring 11 to avoid displacement.
In one embodiment, the metal rod 103 has a mounting portion 1031 and an extension portion 1032, wherein the mounting portion 1301 is mounted inside the spring mounting portion 101, and the extension portion 1302 is penetrated through a through hole in the middle of the plug 8. The shape of the mounting portion 1031 is matched with the shape of the mounting cavity, and is clamped with the convex ring, so that the metal rod 103 can be mounted more firmly, and other redundant components are not needed. The extension 1032 is a cylinder, the end face of the extension 1032 is machined with a convex arc surface, the arc surface is 180 degrees on the horizontal plane, so that when the extension 1032 receives external force, the valve 10 can better press the valve spring 11 inwards, when the valve spring 11 and the valve 10 retract to a certain position, the end face of the sealing part 102 on the valve 10 is separated from the end face of the plug 8, the pressure in the low pressure cavity 15 is released, after the release is finished, the extension 1032 is lifted, the valve 10 returns under the elasticity of the valve spring 11, the end face of the sealing part 102 is closed with the end face of the plug 8, and the construction is simple. Further, a first O-ring 9 is mounted on the plug for sealing.
In one embodiment, the valve 10 has an outer diameter less than the inner diameter of the mounting cavity 181 and the extension 1302 has a diameter less than the diameter of the through bore, thereby forming a passageway for pressure to pass during pressure relief.
In one embodiment, the end face of the output push rod 18 and the end face of the plug 8 and the end face of the metal rod 103 form a conical structure, so that the end face of the output push rod 18 is conveniently separated from the end face of the plug 8 and the end face of the metal rod 103 during pressure relief.
In one embodiment, the output pushrod 18 has a through cavity 182 in the middle, the through cavity 182 communicating with the mounting cavity 181 for pressure passage.
In one embodiment, the diameter of the mounting cavity 181 is greater than the diameter of the through cavity 182, so that the relief valve is better mounted so that the relief valve as a whole will not shift, and better rests against the interior of the mounting cavity 181.
In one embodiment, a spring seat 6 is also included that is mounted within the low pressure chamber 15. The spring seat 6 is adapted to the shape of the extension 1032 for compressing the extension 1032 to retract the valve 10 and the valve spring 11.
In one embodiment, a gap is provided between the spring seat 6 and the metal rod 103. When the assist force is not failed, the spring seat 6 and the metal rod 103 will always keep a non-contact state, and only when the assist force (driving unit) is failed, the pressure relief valve is utilized to release pressure by contacting the spring seat 6 with the extension 1032. Further, the spring seat 6 is provided with four cross grooves or through holes, so that the extension 1032 can be fully contacted, and the pressing effect of the metal rod 103 can be improved.
As shown in fig. 3, the second aspect of the present invention provides an electro-hydraulic booster comprising a low pressure chamber 15 and the pressure relief assembly described above, the pressure relief assembly being located inside the low pressure chamber 15 such that the pressure relief assembly releases the pressure inside the low pressure chamber 15 and the pedal simulator 12.
In one embodiment, the pressure relief booster comprises a cylinder 3 having a communication pressure chamber 16 and a low pressure chamber 15 to store hydraulic pressure. The rod guide 14 is installed between the pressure chamber 16 and the low pressure chamber 15 so as to separate the pressure chamber 16 and the low pressure chamber 15. The part 20 is arranged in the pressure cavity 16, the output push rod 18 is arranged in the low pressure cavity 15 and extends through the middle part of the guide seat 14, and the output push rod 18 is connected with the part 20 so as to reciprocate along with the part 20.
In one embodiment, a through hole is provided in the middle of the guide seat 14 for the output push rod 18 to pass through, and a second O-ring 13 is provided in the through hole to seal.
In one embodiment, the piston 5 is mounted in the pressure chamber 15, the spring seat 6 is mounted on the piston 5 by a spring 7, the push rod 4 is pushed into a recess in the middle of the piston 5, extends out of the end face of the piston 5, and contacts the brake pedal 1 near the cylinder 3.
In one embodiment, the drive unit 17 is connected to the pressure chamber 16.
In one embodiment, the reservoir 2 is connected to a drive unit 17.
In one embodiment, pedal simulator 12 is connected to low pressure chamber 15.
As shown in fig. 3 and 4, the electro-hydraulic booster is directly connected with the brake pedal 1 and the input push rod 4, the parts are integrally arranged in a cylinder body 3, brake fluid is supplied through a fluid storage tank 2, the cylinder body 3 is isolated into a low-pressure cavity 15 and a pressure cavity 16 by a guide seat 14, the inside or outside of the low-pressure cavity 15 can be connected with a pedal simulator 12 to perform the feel simulation of the brake pedal 1, the pressure cavity 16 is connected with a driving unit 17, the pressure is generated by adjusting according to the speed stroke of stepping on the brake pedal 1, and the pressure is transmitted to a brake master cylinder and a wheel cylinder, wherein an output push rod 18 is connected with a part 20 in the pressure cavity 16 to keep following. The relief valve comprises a spring seat 6, a plug 8, a first O-shaped ring 9, a valve 10, a valve spring 11 and an output push rod 18, wherein the spring seat 6 is arranged in the piston 5, the plug 8, the first O-shaped ring 9, the valve 10 and the valve spring 11 are assembled in the output push rod 18, and a certain gap exists between the output push rod 18 and the spring seat 6. The output push rod 18 is a metal rod with a through middle part, the middle part of the through cavity 182 and the installation cavity 181 are in a ladder shape, the middle part of the through cavity 182 and the installation cavity 181 are installed at the center of the guide seat 14 and can move back and forth in the through hole of the guide seat 14, the valve spring 11 is pressed into the installation cavity 181 and the valve 10, the valve is fixed through the first O-shaped ring 9 and the plug 8, the connection between the plug 8 and the output push rod 18 can be realized through threads or other reliable connection forms such as pressing in, and the first O-shaped ring 9 plays a role of static seal. The valve 10 is composed of two parts, namely a sealing part 102 and a spring mounting part 101, because the rubber of the valve 10 is abutted against the end face of the plug 8 to form a sealing surface under the action of the spring force of the valve spring 11 mounted at the bottom, and the metal rod 103 is located a part of distance beyond the plug 8 in the mounted state.
The specific use is as follows:
The electro-hydraulic booster can be simply divided into two modes of normal braking and braking in failure state
Normal braking mode:
When a driver steps on the brake pedal 1, an input push rod 4 connected with the brake pedal 1 pushes a piston 5, after the piston 5 passes through a small hole on a cylinder body 3, the pressure in a low-pressure cavity 15 and a pedal simulator 12 starts to be built slowly, a spring seat 6 is pressed on the piston 5 by a spring 7, the spring seat 6 moves along with the piston 5, and a gap exists between the spring seat 6 and an output push rod 18 and cannot collide; meanwhile, after receiving the signal of stepping on the brake pedal 1, the driving unit 17 establishes corresponding oil pressure according to actual conditions and transmits the oil pressure to the pressure chamber 16, and by the fact that the output push rod 18 is connected with parts in the pressure chamber 16, the spring seat 6 and the output push rod 18 can not touch all the time under the braking condition through logic control, the penetrating chamber 182 of the output push rod 18 is communicated with the mounting chamber 181, the valve 10 is kept in a closed state all the time under the action of pressure and the spring 7, and the low-pressure chamber 15 is kept isolated from the pressure chamber 16.
Failure mode:
The failure mode means that the driving unit 17 cannot build pressure due to failure, and needs to directly brake by stepping on the pedal by manpower, and the smaller the resistance, the better the regulation requirement can be met, and the pressure of the low pressure chamber 15 and the pedal booster 12 can build pressure when stepping on the brake pedal 1, so that the pressure of the low pressure chamber 15 needs to be released.
During braking, the force of the brake pedal 1 is transmitted to the spring seat 6 through the input push rod 4 and the piston 5, the driving unit 17 does not build pressure, the pressure cavity 16 is not pressurized at the moment, the output push rod 18 does not act, so the gap between the spring seat 6 and the output push rod 18 is reduced, the spring seat 6 firstly contacts the top of the metal rod 103 of the valve 10, the other end of the valve 10 is under the spring force of the valve spring 11, the input force needs to overcome the spring force to push the valve 10, so the valve 10 is pushed open, the sealing surface of the valve 10 and the plug 8 is opened, the low-pressure cavity 15 is communicated with the pressure cavity 16, and the pressure of the low-pressure cavity 15 can be released through the channel;
The pushing is continued, the inclined surface of the spring seat 6 contacts with the inclined surface of the plug 8, the two surfaces are attached, and 4 cross grooves or holes are formed in the spring seat 6, so that the low-pressure cavity 15 and the pressure cavity 16 can be ensured to be communicated all the time, and the sufficient flow can be ensured;
Continuing pushing, the push rod assembly 18 will be pushed by the pushing force transmitted by the spring seat 16, and move forward, and the output push rod 18 is connected with the parts in the pressure cavity 16, so that the pressure cavity 16 can be directly pushed to build pressure under the condition that the driving unit 17 fails.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A pressure relief assembly for an electro-hydraulic booster having a low pressure chamber (15), the pressure relief assembly being disposed within the low pressure chamber (15), the low pressure chamber (15) being connected to a pedal simulator (12), the pressure relief assembly comprising an output pushrod (18) and a pressure relief valve;
the output pushrod has a mounting cavity (181);
The pressure relief valve comprises;
The valve spring (11) is arranged in the mounting cavity (181), and the first end of the valve spring (11) is abutted against the inner wall of the mounting cavity (181);
a plug (8) mounted in the mounting cavity (181) and extending to the outside of the end face of the output push rod (18);
a valve (10) provided between the valve spring (11) and the plug (8); and
A metal rod (103) which is installed inside the valve (10) and extends to the outer side of the end face of the plug (8);
Wherein when the metal rod (103) is subjected to an external force, the metal rod (103) abuts against the valve (10), the valve spring (11) is retracted to separate the end surfaces of the valve (10) and the plug (8) for releasing the pressure in the low-pressure chamber (15) and the pedal simulator (12);
the valve (10) comprises a spring mounting part (101) and a sealing part (102), wherein the spring mounting part (101) is fixedly connected with the second end of the valve spring (11);
the end face of the output push rod (18), the end face of the plug (8) and the end face of the metal rod (103) form a conical structure.
2. The pressure relief assembly as claimed in claim 1, wherein,
The metal rod (103) is provided with a mounting part (1031) and an extension part (1032), wherein the mounting part (1301) is mounted inside the spring mounting part (101), and the extension part (1302) penetrates through a through hole in the middle of the plug (8).
3. The pressure relief assembly as claimed in claim 2, wherein,
The outer diameter of the valve (10) is smaller than the inner diameter of the mounting cavity (181); the diameter of the extension (1302) is smaller than the diameter of the through hole.
4. The pressure relief assembly as claimed in claim 1, wherein,
The middle part of the output push rod (18) is provided with a penetrating cavity (182), and the penetrating cavity (182) is communicated with the mounting cavity (181).
5. The pressure relief assembly as claimed in claim 4, wherein,
The diameter of the mounting cavity (181) is larger than the diameter of the penetrating cavity (182).
6. The pressure relief assembly as claimed in claim 1, wherein,
The device also comprises a spring seat (6) arranged in the low-pressure cavity (15).
7. The pressure relief assembly as claimed in claim 6, wherein,
A gap is arranged between the spring seat (6) and the metal rod (103);
the spring seat (6) is provided with four cross grooves or through holes.
8. An electro-hydraulic booster comprising a low pressure chamber (15) and a pressure relief assembly according to any one of claims 1-7, said pressure relief assembly being located inside said low pressure chamber (15), said low pressure chamber (15) being connected to a pedal simulator (12) such that said pressure relief assembly releases pressure within said low pressure chamber (15) and said pedal simulator (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711250779.2A CN107813806B (en) | 2017-12-01 | 2017-12-01 | Pressure relief assembly and electronic hydraulic booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711250779.2A CN107813806B (en) | 2017-12-01 | 2017-12-01 | Pressure relief assembly and electronic hydraulic booster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107813806A CN107813806A (en) | 2018-03-20 |
| CN107813806B true CN107813806B (en) | 2024-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711250779.2A Active CN107813806B (en) | 2017-12-01 | 2017-12-01 | Pressure relief assembly and electronic hydraulic booster |
Country Status (1)
| Country | Link |
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| CN (1) | CN107813806B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108742418B (en) * | 2018-06-01 | 2023-07-28 | 佛山市顺德区美的洗涤电器制造有限公司 | Household appliance housing assembly and dishwasher |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10258266A1 (en) * | 2001-12-20 | 2004-07-08 | Continental Teves Ag & Co. Ohg | Actuating unit for electrohydraulic brake-by-wire motor vehicle brake system with at least one brake circuit, has simulator spring and chamber in parallel between pressure piston and actuating element |
| CN1624340A (en) * | 2003-12-05 | 2005-06-08 | 日信工业株式会社 | Hydraulic controller |
| KR20090121925A (en) * | 2008-05-23 | 2009-11-26 | 주식회사 만도 | Vehicle brake device for electronic hydraulic brake system |
| DE102010038328A1 (en) * | 2009-08-14 | 2011-02-17 | Continental Teves Ag & Co. Ohg | Brake system for motor vehicles, has main cylinder which is connected at wheel brake circuits and piston which is coupled with brake pedal by pressure rod transmitting actuating force |
| CN102458935A (en) * | 2009-06-05 | 2012-05-16 | 罗伯特博世有限公司 | Brake system with master cylinder, disengaged from the brake pedal, and hydraulic brake booster |
| US8366205B1 (en) * | 2008-10-02 | 2013-02-05 | Robert Bosch Gmbh | Blended hydraulic brake booster |
| CN104249725A (en) * | 2013-06-28 | 2014-12-31 | 株式会社电装 | Brake system for vehicle designed to improve mountability |
| CN204279395U (en) * | 2014-10-24 | 2015-04-22 | 安思通（厦门）制动系统有限公司 | Master brake cylinder |
| CN105073534A (en) * | 2013-04-30 | 2015-11-18 | 日立汽车系统株式会社 | Electric booster device |
| CN105438155A (en) * | 2015-12-15 | 2016-03-30 | 浙江万安科技股份有限公司 | Hydraulic booster for automobile braking |
| CN207773123U (en) * | 2017-12-01 | 2018-08-28 | 浙江亚太机电股份有限公司上海分公司 | A kind of pressure release component and electro-hydraulic booster |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE50112440D1 (en) * | 2000-03-27 | 2007-06-14 | Continental Teves Ag & Co Ohg | ACTUATING UNIT FOR AN ELECTRO-HYDRAULIC BRAKING SYSTEM |
-
2017
- 2017-12-01 CN CN201711250779.2A patent/CN107813806B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10258266A1 (en) * | 2001-12-20 | 2004-07-08 | Continental Teves Ag & Co. Ohg | Actuating unit for electrohydraulic brake-by-wire motor vehicle brake system with at least one brake circuit, has simulator spring and chamber in parallel between pressure piston and actuating element |
| CN1624340A (en) * | 2003-12-05 | 2005-06-08 | 日信工业株式会社 | Hydraulic controller |
| KR20090121925A (en) * | 2008-05-23 | 2009-11-26 | 주식회사 만도 | Vehicle brake device for electronic hydraulic brake system |
| US8366205B1 (en) * | 2008-10-02 | 2013-02-05 | Robert Bosch Gmbh | Blended hydraulic brake booster |
| CN102458935A (en) * | 2009-06-05 | 2012-05-16 | 罗伯特博世有限公司 | Brake system with master cylinder, disengaged from the brake pedal, and hydraulic brake booster |
| DE102010038328A1 (en) * | 2009-08-14 | 2011-02-17 | Continental Teves Ag & Co. Ohg | Brake system for motor vehicles, has main cylinder which is connected at wheel brake circuits and piston which is coupled with brake pedal by pressure rod transmitting actuating force |
| CN105073534A (en) * | 2013-04-30 | 2015-11-18 | 日立汽车系统株式会社 | Electric booster device |
| CN104249725A (en) * | 2013-06-28 | 2014-12-31 | 株式会社电装 | Brake system for vehicle designed to improve mountability |
| CN204279395U (en) * | 2014-10-24 | 2015-04-22 | 安思通（厦门）制动系统有限公司 | Master brake cylinder |
| CN105438155A (en) * | 2015-12-15 | 2016-03-30 | 浙江万安科技股份有限公司 | Hydraulic booster for automobile braking |
| CN207773123U (en) * | 2017-12-01 | 2018-08-28 | 浙江亚太机电股份有限公司上海分公司 | A kind of pressure release component and electro-hydraulic booster |
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| CN107813806A (en) | 2018-03-20 |
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