CN207712038U - Brake booster and its control unit - Google Patents
Brake booster and its control unit Download PDFInfo
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- CN207712038U CN207712038U CN201721860130.8U CN201721860130U CN207712038U CN 207712038 U CN207712038 U CN 207712038U CN 201721860130 U CN201721860130 U CN 201721860130U CN 207712038 U CN207712038 U CN 207712038U
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- brake
- booster
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 230000000284 resting effect Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Braking Systems And Boosters (AREA)
Abstract
It discloses a kind of brake booster and its control unit, brake booster includes：Transmit the braking force transmission element of the brake force of driver's input, transmit the booster ontology of braking auxiliary force, brake force output element, and the reaction plate of elasticity, the input power of self-control power transmitting elements and/or the additional braking force from booster ontology are transmitted on brake force output element reaction plate in the future, brake force output element by from the braking force transmission element input power and/or from the braking auxiliary force of booster ontology, apply brake force to the piston of master cylinder, it is provided with air gap between braking force transmission element and reaction plate, the width of air gap when braking process starts is more than the air gap in resting position, make that pre- brake fluid pressure has been established when braking process starts in master cylinder.
Description
Technical field
This application involves a kind of brake booster and its control units.
Background technology
It is known since the long period with the brake booster for leaping to function.Function is leapt in order to realize, it is many
Air gap is provided between the braking force transmission element and reaction plate of brake booster, which makes driver in brake activation power
When transmitting element, braking force transmission element need not press against on force transmission element first, but make its movement with small power.Cause
This, the size of the air gap defines the size leapt to.Increase the air gap, using lower resistance or zero resistance clamp, two can be reduced
Carbon emission is aoxidized, but pedal travel can be increased.
Existing brake booster controls the power-assisted of brake booster when receiving the braking input power from brake pedal
Device ontology moves, and to increase above-mentioned air gap, leaps to function to be better achieved, and will not increase pedal travel.However it is
It realizes the function, needs the hardware configuration for changing brake booster.
Utility model content
The deficiency for aiming to overcome that existing technology of the application provides a kind of brake booster and control unit.
In order to achieve this, the application provides a kind of brake booster in one aspect, including：Transmit driver's input
Brake force braking force transmission element, transmit the braking booster ontology of auxiliary force, brake force output element and elasticity
Reaction plate, reaction plate make the input power of power transmitting elements and/or the additional braking force from booster ontology by oneself in the future
Be transmitted on brake force output element, brake force output element by from the braking force transmission element input power and/or come
From the braking auxiliary force of booster ontology, applies brake force to the piston of master cylinder, brake force transmission element and reaction plate
Between be provided with air gap, the width of the air gap when braking process starts is more than the air gap in resting position, makes master cylinder
Pre- brake fluid pressure has been established in inherent braking process when starting.
According to an embodiments possible, wherein reaction plate is made of the material of elastically deformable.
According to an embodiments possible, wherein braking force transmission element and booster ontology are located at the one of reaction plate
Side, brake force output element are located at the other side of reaction plate.
According to an embodiments possible, wherein brake booster is electromechanical brake booster.
The application additionally provides a kind of control unit of the foregoing brake booster of control, packet on the other hand
It includes：Information transmission port, to receive identification possible braking intention signal；And internal processing modules, to be based on
The signal of the possible braking intention of the identification received, the booster ontology for controlling brake booster is actively mobile, thus
Prefabricated hydrodynamic pressure is established in master cylinder.
According to an embodiments possible, wherein the signal of the possible braking intention of identification includes that gas pedal is loose
The speed that the signal or gas pedal opened are released is more than the signal of certain threshold values.
According to an embodiments possible, wherein booster ontology master of the internal processing modules in control brake booster
Before dynamic movement, it is additionally operable to be calculated as establishing pre- brake fluid pressure, the distance moved needed for booster ontology, and/or be calculated as reaching
The width of air gap when starting to braking process, the distance moved needed for booster ontology.
Description of the drawings
The aforementioned and other aspects of the application will more completely be managed by that is done with reference to the accompanying drawings is discussed in detail
Solution and understanding, in the accompanying drawings：
Fig. 1 shows the signal of the brake booster of one embodiment of the application in the resting position in braking system
Figure.
Fig. 2 shows showing for the brake booster of one embodiment of the application in the pre- on-position in braking system
It is intended to.
Specific implementation mode
The brake booster of the application and its control unit will be described below.
Fig. 1 shows the brake booster 1 of one embodiment of the application in the resting position in braking system, static
Position refers to braking system non-operational state.The brake booster 1, is electromechanical brake booster, including can be by driving
The person of sailing manipulate braking force transmission element 2, for generate the braking booster ontology 4 of auxiliary force, brake force output element 6,
And elastic reaction plate 20.Braking force transmission element 2 and booster ontology 4 are located at the side of reaction plate 20, system
Power output element 6 is located at the other side of reaction plate 20, and reaction plate 20 makes the input power of power transmitting elements 2 by oneself in the future
And/or the additional braking force from booster ontology 4 is transmitted on brake force output element 6, brake force output element 6 is arrived
The input power of power transmitting elements 2 and/or the braking auxiliary force from booster ontology 4 are made by oneself, to the piston of master cylinder 100
Apply brake force.In present embodiment, reaction plate 20 is made of the material of elastically deformable, can also realize as the spring of elasticity
Structure (not shown).It brakes and is provided with air gap 21, the air gap 21 in resting position between force transmission element 2 and reaction plate 20
The required air gap less than when braking process starts makes the brake fluid pressure in master cylinder 100 be less than in resting position and is braking
Brake fluid pressure when process starts.The air gap 21 is for realizing leaping to function, and in braking force transmission element 2 to reaction plate
Exist before 20 load input powers.With the edge braking in unwelcome idle stroke such as brake booster 1 in braking system
Between each element on edge braking power transmitting in gap, master cylinder 100 on power transmitting between each element
Gap, clamp (not shown) running clearance etc..Air gap 21 shown in FIG. 1 is state when braking system is in resting position,
Width is a1.
Fig. 2 is in the brake booster 1 of one embodiment of the application in the pre- on-position of braking system.The application's
The brake booster 1 of one embodiment, such as gas pedal is released or gas pedal after identifying possible braking intention
The speed being released is more than certain threshold values, and by controlling, booster ontology 4 is actively mobile to generate additional braking force, the auxiliary braking
On the one hand power makes brake force output element 6 move a distance towards 100 direction of master cylinder, to the system in braking actively 100
Pre- brake fluid pressure has been established in dynamic process when starting, which is arranged to that brake booster can be closed at least partly
Idle stroke in 1, the idle stroke in master cylinder 100 and/or at least partly close clamp running clearance.On the other hand anti-to make
The displacement distance for being moved by promotion by booster ontology 4 with disk 20, and braking force transmission element 2 is less than the row of reaction plate 20
Journey, therefore after identifying possible braking intention, air gap 21 increases, the width a2 of the air gap 21 when braking process being made to start is big
In the width a1 of the air gap 21 of resting position.Reaction plate 20 and braking force transmission element 2 between due to air gap 21 exist without
Connection, so this movement and deformation do not influence operating element in the case where ignoring spring element 3, therefore for driving
It is not perceived as member.
Situation shown in Fig. 2 represents the original state when real braking process starts.In this case, air gap 21 increases
The size a2 needed for function is leapt to realization greatly.After identifying possible braking intention, the active movement of booster ontology 4 is built
Vertical pre- brake fluid pressure can both close the idle stroke in master cylinder at least partly, or even further, at least partly
Clamp running clearance is closed, and air gap 21 can be precisely increased to required size.
After possible intention is braked in identification, since the booster ontology 4 of brake booster actively moves and braking
Master cylinder 100 forms pre- brake pressure, so as to close such as master cylinder 100 of the idle stroke in braking system at least partly
Interior idle stroke, or even clamp running clearance is further closed at least partly, therefore shorter pressure rising time can be generated,
Braking distance can be shortened.In addition, increasing reaction plate 20 and brake force transmission due to closing the idle stroke in braking system
Air gap 21 between element 2, therefore be conducive to leap to the realization of function.
A kind of control unit of the application, to control brake booster, including：
Information transmission port, the signal of the possible braking intention for receiving identification；
Internal processing modules, the signal of the possible braking intention based on the identification received, control brake booster
Booster ontology is actively mobile, to establish prefabricated hydrodynamic pressure in master cylinder 100.
Identify that the signal of possible braking intention includes the signal that gas pedal is released or the speed that gas pedal is released
Signal of the degree more than certain threshold values.
Internal processing modules are additionally operable to be calculated as establishing before the booster ontology of control brake booster is actively mobile
Pre- brake fluid pressure, the distance moved needed for booster ontology, and/or be calculated as reaching the width of air gap when braking process starts
It spends, the distance moved needed for booster ontology.
Although having been shown and described the application based on specific embodiment, the application is not restricted to shown thin
Section.On the contrary, in the range of claim and its equivalent replacement, the various details of the application can be modified.
Claims (7)
1. a kind of brake booster (1), which is characterized in that including：The brake force for transmitting the brake force of driver's input transmits member
The reaction plate (20) of part (2), the booster ontology (4) for transmitting braking auxiliary force, brake force output element (6) and elasticity,
Reaction plate (20) makes the input power of power transmitting elements (2) and/or the additional braking force from booster ontology (4) by oneself in the future
It is transmitted on brake force output element (6), brake force output element (6) is by the input from the braking force transmission element (2)
Power and/or the braking auxiliary force for coming from booster ontology (4) apply brake force to the piston of master cylinder (100), and brake force passes
It passs and is provided with air gap (21) between element (2) and reaction plate (20), the width of the air gap (21) when braking process starts is big
In the air gap (21) in resting position, make that pre- brake fluid pressure has been established when braking process starts in master cylinder (100).
2. brake booster (1) as described in claim 1, it is characterised in that：Reaction plate (20) by elastically deformable material
Material is made.
3. brake booster (1) as described in claim 1, it is characterised in that：Brake force transmission element (2) and booster ontology
(4) it is located at the side of reaction plate (20), brake force output element (6) is located at the other side of reaction plate (20).
4. brake booster (1) as described in claim 1, it is characterised in that：Brake booster (1) is electromechanical brake boost
Device.
5. the control unit of the brake booster (1) described in a kind of any one of control any one of claims 1 to 44, including
Information transmission port, to receive identification possible braking intention signal；And
Internal processing modules control brake booster to the signal of the possible braking intention based on the identification received
Booster ontology is actively mobile, to establish prefabricated hydrodynamic pressure in master cylinder.
6. control unit as claimed in claim 5, it is characterised in that：The signal of the possible braking intention of identification includes throttle
The speed that the signal or gas pedal that pedal is released are released is more than the signal of certain threshold values.
7. control unit as claimed in claim 5, it is characterised in that：Power-assisted of the internal processing modules in control brake booster
Before device ontology is actively mobile, it is additionally operable to be calculated as establishing pre- brake fluid pressure, the distance moved needed for booster ontology, and/or
It is calculated as reaching the width of air gap when braking process starts, the distance moved needed for booster ontology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721860130.8U CN207712038U (en) | 2017-12-27 | 2017-12-27 | Brake booster and its control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721860130.8U CN207712038U (en) | 2017-12-27 | 2017-12-27 | Brake booster and its control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207712038U true CN207712038U (en) | 2018-08-10 |
Family
ID=63050426
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721860130.8U Active CN207712038U (en) | 2017-12-27 | 2017-12-27 | Brake booster and its control unit |
Country Status (1)
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|---|---|
| CN (1) | CN207712038U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110775032A (en) * | 2019-10-25 | 2020-02-11 | 精诚工科汽车系统有限公司 | Control method and device of electronic brake booster and vehicle |
-
2017
- 2017-12-27 CN CN201721860130.8U patent/CN207712038U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110775032A (en) * | 2019-10-25 | 2020-02-11 | 精诚工科汽车系统有限公司 | Control method and device of electronic brake booster and vehicle |
| CN110775032B (en) * | 2019-10-25 | 2021-09-14 | 精诚工科汽车系统有限公司 | Control method and device of electronic brake booster and vehicle |
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