CN105438155B - A kind of automobile brake hydraulic booster - Google Patents
A kind of automobile brake hydraulic booster Download PDFInfo
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- CN105438155B CN105438155B CN201510934534.6A CN201510934534A CN105438155B CN 105438155 B CN105438155 B CN 105438155B CN 201510934534 A CN201510934534 A CN 201510934534A CN 105438155 B CN105438155 B CN 105438155B
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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
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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
- B60T13/14—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 using accumulators or reservoirs fed by pumps
- B60T13/142—Systems with master cylinder
- B60T13/143—Master cylinder mechanically coupled with booster
- B60T13/144—Pilot valve provided inside booster piston
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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
- B60T13/14—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 using accumulators or reservoirs fed by pumps
- B60T13/142—Systems with master cylinder
- B60T13/145—Master cylinder integrated or hydraulically coupled with booster
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The invention discloses a kind of automobile brake hydraulic booster, including power-assisted chamber and fluid storage chamber, it is equipped between the second end of guide piston and the first end for promoting piston and steps on sense simulation chamber, fluid compensated cavity is equipped between the valve chamber inner wall of promotion piston external annulus and booster valve body, low pressure energy storage chamber is equipped between energy storage piston and sealing piston, the power-assisted chamber is equipped with entry/exit oil path, the sense simulation chamber of stepping on is equipped with oil pressure oil inlet valve port, the oil pressure oil inlet valve port is connected with accumulator valve intracoelomic cavity, the oil pressure oil inlet valve port is equipped with from accumulator valve intracoelomic cavity to sense is stepped on and simulates the unilaterally connected check valve of chamber, the inner cavity of the accumulator valve body is connected by oil communication mouth with low pressure energy storage chamber, the fluid compensated cavity is equipped with compensation oilhole, the compensation oilhole connects fluid storage chamber by oil pipe.The present invention realizes automobile brake by hydraulic booster, can cancel the cumbersome force aid system for braking of new-energy automobile, has the advantages that brake safe is comfortable and reduces energy loss.
Description
Technical field
The present invention relates to auto parts and components, more particularly to a kind of automobile brake hydraulic booster.
Background technology
In electric automobile and hybrid electric vehicle, electric-controlled hydraulic force aid system is designed with, vacuum is substituted using hydraulic power source
Implement driving power-assisted action as power source in source.
Existing electric-controlled hydraulic force aid system, brake pedal cannot produce braking and step on sense, and brake pedal can produce it is different
Often shake, driver comfort during braking are poor.
The content of the invention
The technical problems to be solved by the invention are just to provide a kind of automobile brake hydraulic booster, and brake pedal can be with
Simulation produces braking and steps on sense, avoids brake pedal from shaking extremely, improves driver comfort during braking.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：A kind of automobile brake hydraulic booster, bag
Include master cylinder, hydraulic booster mechanism, low pressure accumulator；
The master cylinder includes master cylinder valve body, and relay piston and charged piston, institute are equipped with the valve chamber of master cylinder valve body
State and the first spring assembly is equipped between relay piston and the first end inner wall of master cylinder valve body, the relay piston and charged piston
Second spring component is equipped between first end；
The hydraulic booster mechanism includes booster valve body, and mandril is equipped with the valve chamber of the booster valve body, is oriented to and lives
Plug and promotion piston, the first end port of the booster valve body are docked with the second end port sealing of master cylinder valve body, the increasing
The second end of pressure piston is stretched into the valve chamber of booster valve body, and the second end of the charged piston and the first end of mandril connect,
The mandril passes through the guiding axis hole of guide piston, and the 3rd spring assembly, institute are equipped between the guide piston and promotion piston
State and promote the second end of piston to be connected with pedal mandril；
The low pressure accumulator includes the accumulator valve body and energy accumulator housing that are connected as one, the accumulator valve body with
Booster valve body connects, and is equipped with energy-storaging spring and energy storage piston in the energy accumulator housing, energy-storaging spring is arranged on energy accumulator housing
Bottom, the energy storage piston are resiliently supported above energy-storaging spring, and sealing piston is equipped with the accumulator valve body；
Wherein, the external annulus of charged piston, the valve chamber inner wall of booster valve body, master cylinder valve body second end, guide piston
Power-assisted chamber is surrounded between first end, is equipped between the second end of guide piston and the first end for promoting piston and steps on sense simulation chamber, pushed away
Fluid additional cavity is equipped between the valve chamber inner wall of piston external annulus and booster valve body, is equipped between energy storage piston and sealing piston
Low pressure energy storage chamber, is equipped with fluid storage chamber, the power-assisted chamber is equipped with entry/exit oil path, described to step on sense simulation chamber in an oil can
Equipped with oil pressure oil inlet valve port, the oil pressure oil inlet valve port is connected with accumulator valve intracoelomic cavity, the oil pressure oil inlet valve port be equipped with by
Accumulator valve intracoelomic cavity to step on sense simulation the unilaterally connected check valve of chamber, the accumulator valve intracoelomic cavity by oil communication mouth with
Low pressure energy storage chamber connects, and the fluid compensated cavity is equipped with compensation oilhole, and the compensation oilhole connects fluid storage chamber by oil pipe.
Preferably, the hydraulic booster mechanism is equipped with displacement sensor, institute's displacement sensors are used to monitor pedal top
Bar displacement situation.
Preferably, institute's displacement sensors include being arranged on the first magnet promoted on piston first end external annulus, are arranged on
The second magnet and an outer sensor of piston first end endoporus bottom are promoted, the outer sensor is used to detect the first magnetic
The shift transformation of iron and the second magnet simultaneously produces voltage signal.
Preferably, the first end port inner wall of the booster valve body is equipped with third gear circle and positioning step, it is described to lead
Spacing by third gear circle to the first end of piston, the second end of the guide piston is spacing by positioning step.
Preferably, the second end for promoting piston is equipped with pedal mandril mounting hole, in the pedal mandril mounting hole
Equipped with tip-lever support, the first end of the pedal mandril is connected with tip-lever support, and the tip-lever support is columnar structured, the tip-lever support
Oral area be equipped with the card convex protruded to outer rim side, the hole wall of pedal mandril mounting hole corresponds to the card convex and is equipped with card slot, the card
Convex clip enters card slot.
Preferably, the endoporus bottom of the tip-lever support is pyramidal structure, the inner hole wall of the tip-lever support is equipped with snap ring, institute
The first end for stating mandril is equipped with ballhead, the endoporus of the ballhead press-in tip-lever support, the snap ring limitation ballhead abjection.
Preferably, the energy accumulator housing is threadedly coupled fastening, the lower mouth of the accumulator valve body with accumulator valve body
End inner wall is equipped with the first baffle ring, and the lower face of the sealing piston is spacing by the stop of the first baffle ring, the energy accumulator housing it is upper
Mouth end is stopped spacing by the first baffle ring.
Preferably, the upper end of the sealing piston is equipped with pillar, the accumulator valve body is equipped with circular hole, and the pillar is close
In envelope insertion circular hole, the center of the sealing piston is equipped with through hole, the through hole connection circular hole and low pressure energy storage chamber.
Preferably, the oil can is installed on master cylinder valve body, the bottom of the oil can is equipped with connecting pole, the master cylinder valve
Body is equipped with link slot, and the connecting pole is arranged in link slot, and the connecting pole is fixed by seal washer and link slot sealing.
The technical solution adopted by the present invention, automobile brake is realized by hydraulic booster, and it is numerous can to cancel new-energy automobile
Trivial force aid system for braking, has the advantages that brake safe is comfortable and reduces energy loss.In addition, intended by stepping on sense simulation cavity mold
Sense is stepped in braking, and is completely cut off the abnormal oil pressure as caused by boosting main pump and fed back to brake pedal, so as to avoid brake pedal from trembling extremely
It is dynamic, improve driver comfort during braking.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and detailed description：
Fig. 1 is the decomposition texture schematic diagram of the present invention；
Fig. 2 is the cross-sectional view of the present invention；
In figure：Hydraulic booster mechanism I, master cylinder II, low pressure accumulator III, oil can 1, seal washer 2, master cylinder valve body 3,
First spring base 4, first compression spring 5, the first lead 6, the first support base 7, relay piston 8, second spring seat 9, second
Compress spring 10, the second lead 11, the second support base 12, charged piston 13, the first sealing ring 14, accumulator valve body 15, the
Two sealing rings 16, the first baffle ring 17, the second baffle ring 18, the 3rd sealing ring 19, energy-storaging spring 20, energy storage piston 21, outside accumulator
Shell 22, the 4th sealing ring 23, sealing piston 24, one-way cock 25, return spring 26, mandril 27, third gear circle 28, fourth gear circle
29th, the 5th sealing ring 30, the 6th sealing ring 31, guide piston the 32, the 3rd compress spring 33, magnet enclosed seat 34, the first magnet
35th, piston 36, the 3rd spring base 37, steel ball 38, the second magnet 39, the 7th sealing ring 40, pedal mandril 41, tip-lever support are promoted
42nd, booster valve body 43, power-assisted chamber A, step on sense simulation chamber B, fluid compensated cavity C, low pressure energy storage chamber D, fluid storage chamber E.
Embodiment
In electric automobile and hybrid electric vehicle, electric-controlled hydraulic force aid system is installed, vacuum is substituted using hydraulic power source
Implement driving power-assisted action as power source in source.Within the system, comprising hydraulic booster, hydraulic regulating module.
Hydraulic regulating module is the system pressure regulating member, including electronic control unit, increase and decrease pressure electromagnetic valve, hydraulic pressure pass
Sensor, motor, oil pump, high pressure accumulator, check valve etc..It acts as vehicle CAN signal and brake signal is received, to braking car
Condition judges, and according to respective logic algorithm, control increase and decrease pressure valve action, oil pressure in high pressure accumulator is discharged, and enters
Corresponding brake circuit.Hydraulic booster is ultimately applied to, produces brake force.Its motor, oil pump is fluid blowback device, by electronics
Control unit control action, realizes the system oil circulation.
Hydraulic booster is the system power-assisted, braking execution unit.It acts as the oil pressure for receiving hydraulic regulating module, and
Act on boosting piston in hydraulic booster, produce retrothrust, help is implemented to brake, and thus act on master cylinder and then
Braking oil pressure is produced, implements braking.
As shown in Figure 1, the automobile brake of present invention hydraulic booster includes hydraulic booster mechanism I, master cylinder II, low
Accumulator III is pressed, to implement power-assisted execution unit, its main function includes the work for transmitting brake pedal for wherein hydraulic booster mechanism
Firmly, and receive the oil pressure from automatically controlled voltage regulating module, the oil pressure is respectively acting on booster cavity and step on sense simulation chamber, realize system
Sense is stepped in dynamic power-assisted and generation braking.Master cylinder II is braking execution unit, its main function is to be configured to move by hydraulic boost mechanical
Conduction, establishes braking oil pressure.Low pressure accumulator III is energy storage device, it acts as storing oil pressure during hydraulic braking, and
When releasing braking the release of pipeline oil pressure is helped as oil pressure source.
As shown in Fig. 2, master cylinder II includes master cylinder valve body 3,8 He of relay piston is equipped with the valve chamber of master cylinder valve body 3
The first spring assembly is equipped between the first end inner wall of charged piston 13, relay piston 8 and master cylinder valve body 3, relay piston 8 is with increasing
Second spring component is equipped between pressure piston 13.
Wherein, the first spring assembly includes the first spring base 4, first compression spring 5, the first lead 6, the first support base
7, the first end inner wall of master cylinder valve body 3 is equipped with the first mounting hole, and the first spring base is equipped with protuberance, and it is solid which is arranged on first
Determine in hole, the first compression spring 5 is between the first spring base 4 and the first support base 7, while the first lead 6 and the first bullet
Spring abutment 4 is rigidly connected, and buckles on the first support base 7, so that the compression for forming the first compression spring 5 is oriented to, relay piston 8
First end endoporus in be equipped with the first spring support seat chamber, the first spring support seat bottom of chamber portion is equipped with the first support column, first
Seat 7 is supportted to be columnar structured, the oral area distending of the first support base 7 is simultaneously fixed on the first support column.
Second spring component includes second spring seat 9, second and compresses spring 10, the second lead 11, the second support base 12,
The second end of first support base 7 opens up spring base hole, and second spring seat 9 is equipped with the second protuberance, and the second protuberance is arranged on the bullet
So that second spring seat 9 is taken a seat and this in spring abutment hole.Second compression spring 10 be located at 9 and second support base 12 of second spring seat it
Between, while the second lead 11 is rigidly connected with second spring seat 9, and buckle on the second support base 12, so as to form second
The compression for compressing spring 10 is oriented to.Second spring support base chamber, second spring branch are equipped with the first end endoporus of charged piston 13
Support seat bottom of chamber portion is equipped with the second support column, and the second support base 12 is columnar structured, and the oral area distending of the second support base 12 is simultaneously solid
It is scheduled on the second support column.
One oil can 1 is installed on master cylinder valve body 3, the bottom of oil can 1 is equipped with connecting pole, and master cylinder valve body 3 is equipped with link slot,
Connecting pole is arranged in link slot, and connecting pole is fixed by seal washer 2 and link slot sealing.
Hydraulic booster mechanism I includes booster valve body 43, and mandril 27, guide piston are equipped with the valve chamber of booster valve body 43
32 and piston 36 is promoted, be sleeved on the second end port outer rim side of master cylinder valve body 3 outside the first end port of booster valve body 43 and lead to
The sealing docking of the first sealing ring 14 is crossed, the second end of charged piston 13 is stretched into the valve chamber of booster valve body 43, charged piston 13
Second end be connected with the first end of mandril 27, mandril 27 pass through 32 center of guide piston guiding axis hole, guide piston 32 with
The 3rd spring assembly is equipped between promotion piston 36, promotes the second end of piston 36 to be connected with pedal mandril 41, mandril 41 is with helping
Sealed between 43 inner cavity oral area of power device valve body by the 7th sealing ring 40.
The first end port inner wall of booster valve body 43 is equipped with third gear circle 28 and positioning step, and the second of guide piston 32
End is seated on the positioning step, and the first end of guide piston 32 is by 28 axial limiting of third gear circle.32 center of guide piston
Being oriented to axis hole allows mandril 27 to slide axially in guide piston 32, in the valve chamber of guide piston external annulus and booster valve body 43
The 5th sealing ring 30 is provided between wall, as the seal member of guide piston 32, prevents oil leak, 27 external annulus of mandril are equipped with
6th sealing ring 31, the sealing being oriented between axis hole as mandril 27 and guide piston 32.Booster valve body 43 is equipped with oil
Hole, oilhole are equipped with steel ball 38 in oral area.
The second end end face of charged piston 13 is designed with mandril mounting hole, and the first end of mandril 27 is equipped with annulus head, annulus
Head is arranged in mandril mounting hole, and passes through the 29 spacing fixation of fourth gear circle so that mandril 27 can bear and transmit axial force.
3rd spring assembly includes the 3rd spring base the 37, the 3rd compression spring 33, and the second end of guide piston 32 is equipped with circle
The boss of platform shape, the 3rd compression spring 33 one end outside be sleeved on boss, the 3rd compression spring 33 for promotion piston 36 return
Spring, makes the grade of promotion piston 36 component return initial position in braking procedure is released, and the 3rd spring base 37 is the 3rd compression spring
33 fixed seat, is arranged in and promotes in 36 first end endoporus of piston, promotes the first end endoporus bottom hole of piston 36 to be equipped with round platform, the
The second end of three spring bases 37 is equipped with circular hole, and circular hole is fastened on round platform.
Hydraulic booster mechanism is equipped with displacement sensor, which is used for the displacement situation for monitoring pedal mandril 41.
Displacement sensor is included arranged on the first magnet 35 promoted on 36 first end external annulus of piston, in promotion 36 first end of piston
Second magnet 39 in bottom hole portion and an outer sensor.First magnet 35 is fixed on by magnet enclosed seat 34 promotes piston 36
In the card slot of first end, the second magnet 39 is coated on the round platform for the first end endoporus bottom hole for promoting piston 36 and by the 3rd spring
Seat 37 presses, and with promoting piston 36 to act, outer sensor is used to detect the first magnetic for the first magnet 35 and the second magnet 39
The shift transformation of 35 and second magnet 39 of iron simultaneously produces voltage signal and exports to central control unit.
Promote the second end of piston 36 to be equipped with pedal mandril mounting hole, be equipped with tip-lever support 42 in pedal mandril mounting hole, step on
The first end of plate mandril 41 is connected with tip-lever support 42, and tip-lever support 42 is columnar structured, and the oral area of tip-lever support is equipped with to outer rim side
The card convex of protrusion, pedal mandril mounting hole correspond to card convex and are equipped with card slot, and card convex is caught in card slot.The endoporus bottom of tip-lever support is taper
Structure, the inner hole wall of tip-lever support are equipped with snap ring, and the first end of mandril is equipped with ballhead, and ballhead is pressed into the endoporus of tip-lever support, card
Ring limitation ballhead abjection.So tip-lever support 42 has been pressed into the pedal mandril mounting hole by interference fit, realizes fixation,
Also it is pressed into the ballhead of pedal mandril 41 at the same time and is fixed on the endoporus of tip-lever support 42, pedal mandril 41 allows in tip-lever support 42
Inner cavity slightly swing so that brake-pedal load transmit it is more efficient.
Low pressure accumulator III includes the accumulator valve body 15 and energy accumulator housing 22 being connected as one, and accumulator valve body 15 is
The interface unit of low pressure accumulator III, accumulator valve body 15 are connected with booster valve body 43, and energy accumulator housing 25 is threaded in
On the inside of the lower mouth end of accumulator valve body 15, sealing piston 24 is equipped with accumulator valve body 15,24 periphery of sealing piston is equipped with second
Sealing ring 16, to coordinate with accumulator valve body valve chamber inner wall sealing.The lower mouth end inner wall of accumulator valve body 15 is equipped with the first baffle ring
17, the lower face of sealing piston 24 is stopped spacing by the first baffle ring 17, and the first baffle ring 17 is installed under accumulator valve body in mouth end
In the card slot of wall, 24 axial float of sealing piston is limited, the end suitable for reading of energy accumulator housing 22 is stopped spacing by the first baffle ring 17.
The upper end of sealing piston 24 is equipped with pillar, and accumulator valve body 15 is equipped with circular hole, and pillar sealing is inserted into circular hole, pillar
External annulus are sealed equipped with the 4th sealing ring 23, and the center of sealing piston 24 is equipped with through hole, and through hole connection circular hole and low pressure store
Energy chamber, circular hole are connected with oil pressure oil inlet valve port, check valve are set on oil pressure oil inlet valve port, wherein check valve includes one-way cock 25
With return spring 26.One-way cock 25 opens check valve in power-assisted stage compression return spring 26, and oil circuit turns on, and in brake release
By closed check valve under state, prevent fluid from flowing back.
Energy-storaging spring 20 and energy storage piston 21 are equipped with energy accumulator housing 22, energy-storaging spring 20 is arranged on energy accumulator housing 22
Bottom, energy storage piston 21 are resiliently supported at the top of energy-storaging spring 20, and 21 external annulus of energy storage piston are equipped with the 3rd sealing ring 19, make
For the sealing between energy storage piston 21 and energy accumulator housing inner hole wall.Energy accumulator housing oral area inner hole wall is equipped with the second baffle ring 18,
It is spacing for being carried out to energy storage piston 21.During accumulation of energy, fluid acts on energy storage piston 21, and compress energy storage spring 20 stores up
Deposit energy.
The external annulus of charged piston 13, the valve chamber inner wall of booster valve body 43,3 second end of master cylinder valve body, guide piston 32
First end between surround power-assisted chamber A, be equipped between the second end of guide piston 32 and the first end for promoting piston 36 and step on sense mould
Intend chamber B, promote and be equipped with fluid compensated cavity C, energy storage piston 21 between the external annulus of piston 36 and the valve chamber inner wall of booster valve body 43
Low pressure energy storage chamber D is equipped between sealing piston 24, fluid storage chamber E is equipped with oil can 1, it is logical that power-assisted chamber A is equipped with entry/exit oil
Road, steps between chamber B and low pressure energy storage chamber D is simulated in sense and is equipped with oil pressure oil inlet valve port, oil pressure oil inlet valve port and accumulator valve body 15
Inner cavity connects, and oil pressure oil inlet valve port is equipped with from accumulator valve intracoelomic cavity to the sense simulation unilaterally connected check valves of chamber B, fluid is stepped on and mends
Repay chamber C and be equipped with compensation oilhole, compensation oilhole connects fluid storage chamber E by oil pipe.
The inner cavity of power-assisted chamber A is equipped with entry/exit oil path, and when that need to implement braking, high-voltage oil liquid is entered by the path to be helped
Power chamber A, and charged piston 13 is acted on, make its compression spring 10 of compression second, and then promote first compression of the compression of relay piston 8
Spring 5 so that the volume of II liang of chamber of master cylinder changes, and establishes oil pressure, and export from two-way brake circuit.When braking need to be released
When, entry/exit oil path external high pressure oil sources cut-out, oil extraction pressure reducing valve is opened, and it is same that the first compression spring 5, second compresses spring 10
Shi Huiwei, promotes relay piston 8, charged piston 13 to reset, and power-assisted chamber A inner fluids are excluded from entry/exit oil path, brake release.
The simulating brake that act as stepping on sense simulation chamber B steps on sense, and completely cuts off the abnormal oil pressure as caused by boosting main pump and feed back to
Brake pedal.The oil pressure oil inlet path for stepping on sense simulation chamber B comes from accumulator valve body 15, from exterior controlled oil pressure adjustment module
Oil sources is pressurized while power-assisted chamber A is entered, the interface together through accumulator valve body 15 enters accumulator valve body 15, and built in warp
Channeling overcomes return spring 26 in check valve body 25, opens valve, and isobaric high-voltage oil liquid, which enters, steps on sense simulation chamber B,
The end face for promoting piston 36 is acted on, is fed back through pedal mandril 41 in brake pedal.When under ABS operating conditions, master cylinder II
Interior abnormal pressure fluctuation, piston 36 is promoted since no path is fed back to, so that brake pedal can avoid abnormal shake, increase
Driver comfort.
Fluid compensated cavity C act as fluid compensation, promotes 36 times guilds of piston to bring fluid compensated cavity C in braking procedure
Negative pressure, therefore 1 inner fluid of oil can is supplemented in fluid compensated cavity C, so as to eliminate negative pressure, avoid the braking resistance brought by negative pressure
Power.
Low pressure energy storage chamber D, under energy accumulating state, the high pressure fuel source from exterior controlled oil pressure adjustment module, through accumulator
The accumulation of energy interface of valve body 15 enters low pressure energy storage chamber D, promotes energy storage piston 21 to overcome the pressure downlink of energy-storaging spring 20, cuts at the same time
Disconnected exterior accumulation of energy pipeline, realizes low pressure accumulation of energy.When releasing braking, it is only necessary to exterior controlled oil pressure adjustment module pressure reducing valve is opened,
Oil pressure promotes 21 uplink of energy storage piston, by low pressure energy storage chamber D and steps on automatically under 20 return of energy-storaging spring in low pressure energy storage chamber D
High-voltage oil liquid is through stepping on sense simulation chamber B oil discharge outlet discharges, brake release in sense simulation chamber B.
Fluid storage chamber E, is fluid storage device, is provided for master cylinder, hydraulic booster, electric-controlled hydraulic adjustment module
Fluid is supported.
Under the conditions of emergency braking：Due to automatically controlled failure, the failure of exterior electric-controlled hydraulic adjustment module, high-voltage oil liquid can not be through
This enters hydraulic booster.It is only capable of mechanically implementing emergency braking.Brake pedal is stepped on, and pedal mandril 41, which promotes, lives
36 downlinks are filled in, overcome the pressure of the 3rd compression spring 33, and are contacted with mandril 27, and promote 13 downlink of charged piston, so as to push away
The piston motion of dynamic master cylinder, establishes braking oil pressure, and exports to two brake circuits.
Claims (9)
- A kind of 1. automobile brake hydraulic booster, it is characterised in that：Including master cylinder, hydraulic booster mechanism, low pressure accumulation of energy Device；The master cylinder includes master cylinder valve body, is equipped with relay piston and charged piston in the valve chamber of master cylinder valve body, it is described from It is equipped with the first spring assembly between piston and the first end inner wall of master cylinder valve body, the first of the relay piston and charged piston Second spring component is equipped between end；The hydraulic booster mechanism includes booster valve body, be equipped with the valve chamber of the booster valve body mandril, guide piston and Piston is promoted, the first end port of the booster valve body is docked with the second end port sealing of master cylinder valve body, and the supercharging is lived The second end of plug is stretched into the valve chamber of booster valve body, and the second end of the charged piston and the first end of mandril connect, described Mandril passes through the guiding axis hole of guide piston, and the 3rd spring assembly is equipped between the guide piston and promotion piston, described to push away The second end of piston is connected with pedal mandril；The low pressure accumulator includes the accumulator valve body and energy accumulator housing being connected as one, the accumulator valve body and power-assisted Device valve body connects, and energy-storaging spring and energy storage piston are equipped with the energy accumulator housing, and energy-storaging spring is arranged on energy accumulator housing bottom, The energy storage piston is resiliently supported above energy-storaging spring, and sealing piston is equipped with the accumulator valve body；Wherein, the external annulus of charged piston, the valve chamber inner wall of booster valve body, master cylinder valve body second end, the first of guide piston Power-assisted chamber is surrounded between end, is equipped between the second end of guide piston and the first end for promoting piston and steps on sense simulation chamber, promoted and live Fluid additional cavity is equipped between the valve chamber inner wall of ring wall and booster valve body beyond the Great Wall, low pressure is equipped between energy storage piston and sealing piston Energy storage chamber, is equipped with fluid storage chamber in an oil can, and the power-assisted chamber is equipped with entry/exit oil path, and the sense simulation chamber of stepping on is equipped with Oil pressure oil inlet valve port, the oil pressure oil inlet valve port are connected with accumulator valve intracoelomic cavity, and the oil pressure oil inlet valve port is equipped with by accumulation of energy Device body cavity passes through oil communication mouth and low pressure to the sense simulation unilaterally connected check valve of chamber, the accumulator valve intracoelomic cavity is stepped on Energy storage chamber connects, and the fluid compensated cavity is equipped with compensation oilhole, and the compensation oilhole connects fluid storage chamber by oil pipe.
- A kind of 2. automobile brake hydraulic booster according to claim 1, it is characterised in that：The hydraulic booster mechanism Equipped with displacement sensor, institute's displacement sensors are used to monitor pedal mandril displacement situation.
- A kind of 3. automobile brake hydraulic booster according to claim 2, it is characterised in that：Institute's displacement sensors bag Include arranged on the first magnet promoted on piston first end external annulus, arranged on promote the second magnet of piston first end endoporus bottom with And an outer sensor, the outer sensor are used to detect the shift transformation of the first magnet and the second magnet and produce voltage letter Number.
- A kind of 4. automobile brake hydraulic booster according to claim 1, it is characterised in that：The booster valve body First end port inner wall is equipped with third gear circle and positioning step, and the first end of the guide piston is spacing by third gear circle, described The second end of guide piston is spacing by positioning step.
- A kind of 5. automobile brake hydraulic booster according to claim 1, it is characterised in that：It is described to promote the of piston Two ends are equipped with pedal mandril mounting hole, are equipped with tip-lever support in the pedal mandril mounting hole, the first end of the pedal mandril and Tip-lever support connects, and the tip-lever support is columnar structured, and the oral area of the tip-lever support is equipped with the card convex protruded to outer rim side, pedal The hole wall of mandril mounting hole corresponds to the card convex and is equipped with card slot, and the card convex is caught in card slot.
- A kind of 6. automobile brake hydraulic booster according to claim 5, it is characterised in that：The endoporus of the tip-lever support Bottom is pyramidal structure, and the inner hole wall of the tip-lever support is equipped with snap ring, and the first end of the mandril is equipped with ballhead, described spherical The endoporus of head press-in tip-lever support, the snap ring limitation ballhead abjection.
- A kind of 7. automobile brake hydraulic booster according to claim 1, it is characterised in that：The energy accumulator housing with Accumulator valve body is threadedly coupled fastening, and the lower mouth end inner wall of the accumulator valve body is equipped with the first baffle ring, the sealing piston Lower face is spacing by the stop of the first baffle ring, and the end suitable for reading of the energy accumulator housing is spacing by the stop of the first baffle ring.
- A kind of 8. automobile brake hydraulic booster according to claim 1, it is characterised in that：The sealing piston it is upper End is equipped with pillar, and the accumulator valve body is equipped with circular hole, and the pillar sealing is inserted into circular hole, and the center of the sealing piston is set There are through hole, the through hole connection circular hole and low pressure energy storage chamber.
- A kind of 9. automobile brake hydraulic booster according to claim 1, it is characterised in that：The oil can is installed on master On cylinder valve body, the bottom of the oil can is equipped with connecting pole, and the master cylinder valve body is equipped with link slot, and the connecting pole is arranged on connection In groove, the connecting pole is fixed by seal washer and link slot sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510934534.6A CN105438155B (en) | 2015-12-15 | 2015-12-15 | A kind of automobile brake hydraulic booster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510934534.6A CN105438155B (en) | 2015-12-15 | 2015-12-15 | A kind of automobile brake hydraulic booster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105438155A CN105438155A (en) | 2016-03-30 |
| CN105438155B true CN105438155B (en) | 2018-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510934534.6A Active CN105438155B (en) | 2015-12-15 | 2015-12-15 | A kind of automobile brake hydraulic booster |
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| Country | Link |
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| CN (1) | CN105438155B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106218608B (en) * | 2016-07-29 | 2018-09-18 | 刘力平 | A kind of hydraulic booster |
| CN107813806B (en) * | 2017-12-01 | 2024-05-17 | 浙江亚太机电股份有限公司 | Pressure relief assembly and electronic hydraulic booster |
| CN109532802A (en) * | 2018-11-21 | 2019-03-29 | 吉林大学 | A kind of intelligent network connection automobile brake-by-wire device |
| USD982375S1 (en) | 2019-06-06 | 2023-04-04 | Sharkninja Operating Llc | Food preparation device |
| CN114236959A (en) * | 2021-11-29 | 2022-03-25 | 尹圣杰 | Projector support that place adaptability is good |
| CN115366857B (en) * | 2022-08-29 | 2023-12-01 | 珠海博众科企业管理合伙企业(有限合伙) | Hydraulic booster assembly device capable of increasing displacement |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3576143A (en) * | 1969-09-05 | 1971-04-27 | Sundstrand Corp | Constant speed drive and generator |
| JP4446722B2 (en) * | 2003-12-05 | 2010-04-07 | 日信工業株式会社 | Hydraulic booster |
| DE102010038327A1 (en) * | 2009-08-14 | 2011-02-17 | Continental Teves Ag & Co. Ohg | Brake system for motor vehicles |
| JP5973231B2 (en) * | 2012-05-22 | 2016-08-23 | トヨタ自動車株式会社 | Cylinder device |
| JP5869527B2 (en) * | 2013-07-10 | 2016-02-24 | トヨタ自動車株式会社 | Hydraulic brake system and hydraulic control device |
| CN205365577U (en) * | 2015-12-15 | 2016-07-06 | 浙江万安科技股份有限公司 | Hydraulic booster is used in car braking |
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| CN105438155A (en) | 2016-03-30 |
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Denomination of invention: A hydraulic booster for automobile braking Effective date of registration: 20211222 Granted publication date: 20180504 Pledgee: Diankou sub branch of Zhejiang Zhuji Rural Commercial Bank Co., Ltd Pledgor: ZHEJIANG VIE SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2021980015560 |