CN109305155A - The oil circuit of electric controlled brake system pressure reduction pulse can be reduced - Google Patents
The oil circuit of electric controlled brake system pressure reduction pulse can be reduced Download PDFInfo
- Publication number
- CN109305155A CN109305155A CN201811206209.8A CN201811206209A CN109305155A CN 109305155 A CN109305155 A CN 109305155A CN 201811206209 A CN201811206209 A CN 201811206209A CN 109305155 A CN109305155 A CN 109305155A
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- CN
- China
- Prior art keywords
- buffer cell
- oil
- piston
- brake system
- pressure
- 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.)
- Pending
Links
- 239000000872 buffer Substances 0.000 claims abstract description 104
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 238000013016 damping Methods 0.000 claims abstract description 11
- 239000003921 oil Substances 0.000 claims description 75
- 230000003139 buffering effect Effects 0.000 claims description 8
- 239000000446 fuel Substances 0.000 claims description 8
- 239000010727 cylinder oil Substances 0.000 claims 1
- 210000004027 cell Anatomy 0.000 description 70
- 230000006837 decompression Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
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
- B60T13/74—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 electrical assistance or drive
- B60T13/745—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 electrical assistance or drive acting on a hydraulic system, e.g. a master cylinder
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The object of the present invention is to provide the oil circuits that one kind can reduce electric controlled brake system pressure reduction pulse, by the way that buffer cell is arranged between four pressure reducing valves and the oil can of master cylinder of electric controlled brake system, cavity left part of the buffer cell piston in buffer cell valve body when initial, after pressure reducing valve pressure reduction pulse enters buffer cell, buffer cell piston, which is moved right, buffers pressure pulse by buffer cell damped elasticity part, oil liquid passes through damping hole pressure release simultaneously, after buffer cell piston moves right on the right side of oil outlet, oil liquid directly passes through the oil can that oil outlet flows to master cylinder, after pressure reducing valve pressure pulse is eliminated, buffer cell piston returns to the cavity left part that initial position is located at buffer cell valve body, to be buffered next time, the pressure reduction pulse of electric controlled brake system can be reduced in this way, driver will not feel to shake, operation is relaxed It is suitable, reduce damage parts rate.
Description
Technical field
The present invention relates to electric controlled brake system fields, more particularly to one kind can reduce the pressure reduction pulse of electric controlled brake system
Oil circuit.
Background technique
With the gradually development of electric controlled brake system, the braking technology R&D direction of automobile has had developed to the hydraulic system of line traffic control
Dynamic system.But hydraulic fluctuation is generated when the work decompression of the pressure reducing valve of current electric controlled brake system to generate hydraulic punch to circuit
It hits, the vibration that hydraulic shock generates is transferred to front deck protective plate, and driver is easily perceivable to uncomfortable vibration in driver's cabin.Therefore
Solve the problems, such as that this is just seemed very necessary.
Summary of the invention
To solve the above problems, the present invention provides a kind of oil circuit of pressure reduction pulse that can reduce electric controlled brake system, pass through
Buffer cell is set between four pressure reducing valves and the oil can of master cylinder of electric controlled brake system, buffer cell piston is slow when initial
The cavity left part for rushing unit valve body, after pressure reducing valve pressure reduction pulse enters buffer cell, buffer cell piston, which moves right, to be passed through
Buffer cell damped elasticity part buffers pressure pulse, while oil liquid passes through damping hole pressure release, and buffer cell piston is to the right
After moving on the right side of oil outlet, oil liquid directly passes through the oil can that oil outlet flows to master cylinder, after pressure reducing valve pressure pulse is eliminated, delays
It rushes unit piston and returns to the cavity left part that initial position is located at buffer cell valve body, it, in this way can be with to be buffered next time
The pressure reduction pulse of electric controlled brake system is reduced, driver will not feel to shake, and operation is comfortable, damage parts rate is reduced,
It solves the problems in the background art.
The object of the present invention is to provide the oil circuits that one kind can reduce electric controlled brake system pressure reduction pulse, include the oil of master cylinder
Pot, the oil can of master cylinder are connected with electric controlled brake system, and the electric controlled brake system is interior there are four pressure reducing valve, and four pressure reducing valves are common
It is connected with buffer cell, buffer cell is connected to the oil can of master cylinder, to constitute an oil circuit；The buffer cell includes outer
The buffer cell valve body in portion, intermediate in buffer cell valve body is cavity, there is buffer cell piston in cavity, and buffer cell piston is right
Side is provided with buffer cell damped elasticity part, and left bottom has damping hole in buffer cell piston；Buffer cell piston is buffering
It is moved back and forth in unit valve body cavity body；When initial buffer cell piston buffer cell valve body cavity left part, when pressure reducing valve subtracts
After pressure pulse enters buffer cell, buffer cell piston, which is moved right, carries out pressure pulse by buffer cell damped elasticity part
Buffering, while oil liquid passes through damping hole pressure release.
Further improvement lies in that: the buffer cell valve body left bottom is fuel feed hole, and buffer cell body top is to the left
For oil outlet, fuel feed hole and oil outlet are communicated with the cavity of buffer cell valve body；It is connected on the left of fuel feed hole with four pressure reducing valves, out
It is connected at the top of oilhole with the oil can of master cylinder；After pressure reduction pulse buffering, oil liquid enters in the oil can of master cylinder finally by oil outlet.
Further improvement lies in that: the buffer cell piston moves right at oil outlet, after opening oil outlet, oil liquid
The oil can of master cylinder is directly flowed to by oil outlet, after pressure reducing valve pressure pulse is eliminated, buffer cell piston returns to initial bit set
In the cavity left part of buffer cell valve body.
Beneficial effects of the present invention: the present invention passes through between four pressure reducing valves and the oil can of master cylinder of electric controlled brake system
Be arranged buffer cell, when initial buffer cell piston buffer cell valve body cavity left part, when pressure reducing valve pressure reduction pulse enter
After buffer cell, buffer cell piston, which is moved right, buffers pressure pulse by buffer cell damped elasticity part, simultaneously
Oil liquid passes through damping hole pressure release, and after buffer cell piston moves right on the right side of oil outlet, oil liquid directly passes through oil outlet stream
To the oil can of master cylinder, after pressure reducing valve pressure pulse is eliminated, buffer cell piston returns to initial position and is located at buffer cell valve body
Cavity left part can reduce the pressure reduction pulse of electric controlled brake system, driver is not in this way to be buffered next time
It can feel to shake, operation is comfortable, reduces damage parts rate.
Detailed description of the invention
Fig. 1 is oil circuit figure of the invention.
Fig. 2 is schematic diagram under buffer cell original state of the present invention.
Fig. 3 schematic diagram of damper piston that has been buffer cell pressure reducing valve pressure pulse push of the present invention.
Fig. 4 is the schematic diagram that buffer cell work of the present invention finishes pressure pulse elimination.
Wherein: 1- buffer cell valve body, 2- buffer cell piston, 3- buffer cell damped elasticity part, 4- damping hole, 5- into
Oilhole, 6- oil outlet.
Specific embodiment
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the examples below, the embodiment
For explaining only the invention, it is not intended to limit the scope of the present invention..
It as shown in Figs 1-4, include master the present embodiment provides the oil circuit that one kind can reduce electric controlled brake system pressure reduction pulse
The oil can of cylinder, the oil can of master cylinder are connected with electric controlled brake system, and the electric controlled brake system is interior, and there are four pressure reducing valve, four decompressions
Valve is connected with buffer cell jointly, and buffer cell is connected to the oil can of master cylinder, to constitute an oil circuit；The buffer cell packet
External buffer cell valve body 1 is included, centre is cavity in buffer cell valve body 1, has buffer cell piston 2 in cavity, is buffered
Buffer cell damped elasticity part 3 is provided on the right side of unit piston 2, left bottom has damping hole 4 in buffer cell piston 2；Buffering
Unit piston 2 moves back and forth in 1 cavity of buffer cell valve body；Chamber of the buffer cell piston 2 in buffer cell valve body 1 when initial
Body left part, after pressure reducing valve pressure reduction pulse enters buffer cell, buffer cell piston 2, which is moved right, damps bullet by buffer cell
Property part 3 pressure pulse is buffered, while oil liquid pass through 4 pressure release of damping hole.1 left bottom of buffer cell valve body be into
Oilhole 5, the 1 top cavity phase to the left for oil outlet 6, fuel feed hole 5 and oil outlet 6 and buffer cell valve body 1 of buffer cell valve body
It is logical；5 left side of fuel feed hole is connected with four pressure reducing valves, and 6 top of oil outlet is connected with the oil can of master cylinder；After pressure reduction pulse buffering, oil
Liquid enters in the oil can of master cylinder finally by oil outlet 6.The buffer cell piston 2 moves right at oil outlet 6, opens
After oil outlet 6, oil liquid directly passes through the oil can that oil outlet 6 flows to master cylinder, and after pressure reducing valve pressure pulse is eliminated, buffer cell is living
Plug 2 returns to the cavity left part that initial position is located at buffer cell valve body 1.
By the way that buffer cell is arranged between four pressure reducing valves and the oil can of master cylinder of electric controlled brake system, buffered when initial
Unit piston 2 is in the cavity left part of buffer cell valve body 1, and after pressure reducing valve pressure reduction pulse enters buffer cell, buffer cell is living
Plug 2, which is moved right, buffers pressure pulse by buffer cell damped elasticity part 3, while oil liquid passes through 4 pressure release of damping hole,
After buffer cell piston moves to 6 right side of oil outlet to 2 right sides, oil liquid directly passes through the oil can that oil outlet 6 flows to master cylinder, decompression
After valve pressure pulse is eliminated, buffer cell piston 2 returns to the cavity left part that initial position is located at buffer cell valve body 1, thus into
Row buffers next time, can reduce in this way to the pressure reduction pulse of electric controlled brake system, and driver will not feel to shake, operation
Comfortably, damage parts rate is reduced.
Claims (3)
- It include the oil can of master cylinder 1. one kind can reduce the oil circuit of electric controlled brake system pressure reduction pulse, the oil can of master cylinder is connected with Electric controlled brake system, it is characterised in that: there are four pressure reducing valves in the electric controlled brake system, and four pressure reducing valves are connected with slow jointly Unit is rushed, buffer cell is connected to the oil can of master cylinder, to constitute an oil circuit；The buffer cell includes external buffering Unit valve body (1), intermediate in buffer cell valve body (1) is cavity, has buffer cell piston (2), buffer cell piston in cavity (2) right side is provided with buffer cell damped elasticity part (3), and buffer cell piston (2) interior left bottom has damping hole (4)；Buffering Unit piston (2) moves back and forth in buffer cell valve body (1) cavity；Buffer cell piston (2) is in buffer cell valve when initial The cavity left part of body (1), after pressure reducing valve pressure reduction pulse enters buffer cell, buffer cell piston (2) is moved right by slow It rushes unit damped elasticity part (3) to buffer pressure pulse, while oil liquid passes through damping hole (4) pressure release.
- 2. the oil circuit of electric controlled brake system pressure reduction pulse can be reduced as described in claim 1, it is characterised in that: the buffer cell Valve body (1) left bottom is fuel feed hole (5), and to the left at the top of buffer cell valve body (1) is oil outlet (6), fuel feed hole (5) and fuel-displaced Hole (6) is communicated with the cavity of buffer cell valve body (1)；It is connected on the left of fuel feed hole (5) with four pressure reducing valves, at the top of oil outlet (6) It is connected with the oil can of master cylinder；After pressure reduction pulse buffering, oil liquid enters in the oil can of master cylinder finally by oil outlet (6).
- 3. the oil circuit of electric controlled brake system pressure reduction pulse can be reduced as claimed in claim 2, it is characterised in that: the buffer cell Piston (2) moves right at oil outlet (6), and after opening oil outlet (6), oil liquid directly passes through oil outlet (6) and flows to master cylinder Oil can, pressure reducing valve pressure pulse eliminate after, buffer cell piston (2) returns to initial position and is located at buffer cell valve body (1) Cavity left part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811206209.8A CN109305155A (en) | 2018-10-17 | 2018-10-17 | The oil circuit of electric controlled brake system pressure reduction pulse can be reduced |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811206209.8A CN109305155A (en) | 2018-10-17 | 2018-10-17 | The oil circuit of electric controlled brake system pressure reduction pulse can be reduced |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109305155A true CN109305155A (en) | 2019-02-05 |
Family
ID=65225271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811206209.8A Pending CN109305155A (en) | 2018-10-17 | 2018-10-17 | The oil circuit of electric controlled brake system pressure reduction pulse can be reduced |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109305155A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07315192A (en) * | 1994-05-24 | 1995-12-05 | Unisia Jecs Corp | Brake fluid pressure control device |
| WO1998054039A1 (en) * | 1997-05-28 | 1998-12-03 | Continental Teves Ag & Co. Ohg | Pressure reduction and damping device for a motor vehicle braking system |
| CN101941430A (en) * | 2010-07-05 | 2011-01-12 | 清华大学 | Hydraulic braking system of four-wheel driven electric vehicle |
| CN104071144A (en) * | 2013-03-26 | 2014-10-01 | 日信工业株式会社 | Vehicle brake hydraulic pressure control apparatus |
| US20150097418A1 (en) * | 2013-10-07 | 2015-04-09 | Hyundai Mobis Co., Ltd. | Electronic hydraulic brake device |
| JP2018001805A (en) * | 2016-06-28 | 2018-01-11 | 日立オートモティブシステムズ株式会社 | Brake control device and brake control method |
| CN209126714U (en) * | 2018-10-17 | 2019-07-19 | 芜湖伯特利电子控制系统有限公司 | The oil circuit of electric controlled brake system pressure reduction pulse can be reduced |
-
2018
- 2018-10-17 CN CN201811206209.8A patent/CN109305155A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07315192A (en) * | 1994-05-24 | 1995-12-05 | Unisia Jecs Corp | Brake fluid pressure control device |
| WO1998054039A1 (en) * | 1997-05-28 | 1998-12-03 | Continental Teves Ag & Co. Ohg | Pressure reduction and damping device for a motor vehicle braking system |
| EP0983176A1 (en) * | 1997-05-28 | 2000-03-08 | Continental Teves AG & Co. oHG | Pressure reduction and damping device for a motor vehicle braking system |
| CN101941430A (en) * | 2010-07-05 | 2011-01-12 | 清华大学 | Hydraulic braking system of four-wheel driven electric vehicle |
| CN104071144A (en) * | 2013-03-26 | 2014-10-01 | 日信工业株式会社 | Vehicle brake hydraulic pressure control apparatus |
| US20150097418A1 (en) * | 2013-10-07 | 2015-04-09 | Hyundai Mobis Co., Ltd. | Electronic hydraulic brake device |
| CN104512399A (en) * | 2013-10-07 | 2015-04-15 | 现代摩比斯株式会社 | Electronic hydraulic brake device |
| JP2018001805A (en) * | 2016-06-28 | 2018-01-11 | 日立オートモティブシステムズ株式会社 | Brake control device and brake control method |
| CN209126714U (en) * | 2018-10-17 | 2019-07-19 | 芜湖伯特利电子控制系统有限公司 | The oil circuit of electric controlled brake system pressure reduction pulse can be reduced |
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