CN110341677A - A kind of integrated type electrical hydraulic braking power assisting device - Google Patents
A kind of integrated type electrical hydraulic braking power assisting device Download PDFInfo
- Publication number
- CN110341677A CN110341677A CN201910693855.XA CN201910693855A CN110341677A CN 110341677 A CN110341677 A CN 110341677A CN 201910693855 A CN201910693855 A CN 201910693855A CN 110341677 A CN110341677 A CN 110341677A
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- China
- Prior art keywords
- sliding block
- hydraulic braking
- type electrical
- integrated type
- braking power
- 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.)
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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
-
- 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
- B60T13/746—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 and mechanical transmission of the braking action
-
- 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
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/042—Brake-action initiating means for personal initiation foot actuated by electrical means, e.g. using travel or force sensors
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
Abstract
The present invention relates to a kind of integrated type electrical hydraulic braking power assisting devices, including master cylinder component, housing unit, motor (25) and controller, the cavity (39) of the shell of the inner cavity (38) and housing unit of the master cylinder (3) of the master cylinder component is penetrated through；Spring assembly is installed in inner cavity (38), it is equipped in cavity (39) sliding block return spring (5), brake force input shaft (24) sequentially passes through the hollow output shaft (42) of the motor (25), input shaft limit metal plate (28) is contacted with input sliding block (29)；The ball-screw of hollow structure is rotationally set on brake force input shaft (24), the feed screw nut (43) on ball-screw is rotatably fixed by bearing (8) to be mounted in cavity (39)；The rotation of hollow output shaft (42) drives feed screw nut rotation, then drive ball screw (27) move back and forth and with input sliding block movable contact.The device integrated level is higher, stable, reliability is higher and impact resistance is stronger.
Description
Technical field
The present invention relates to technical field of automobile components, be specifically related to a kind of integrated type electrical hydraulic braking power assisting device and
Its method.
Background technique
With the continuous development and progress of auto industry technology, more and more automobiles are towards motorized, intelligence, cleaning
Change development.It is dynamic that existing new-energy automobile mostly uses greatly battery, natural gas, battery that gasoline or diesel oil etc. is added to provide for new-energy automobile
Power.By taking pure electric vehicle as an example, vehicle is driven by motor, and no conventional engines provide for the vacuum booster installed on vehicle
Power resources.Although electronic type vacuum pump in the prior art can provide vacuum source for electric car.But such electronic type
Vacuum pump cannot achieve regenerative braking, can not provide the accurate braking need for controlling and being also unable to satisfy intelligent driving of brake force
It asks.Therefore, electronic type hydraulic braking power assisting device comes into being and has obtained continuing to develop to adapt to more complicated driving
Scene.However, the integrated level of electro-hydraulic brake force aid system in the prior art is lower, operational shock and noise problem always
Do not obtain effective solution.
For example, the Chinese invention patent of Patent No. ZL201310061203.7 discloses a kind of electronic type hydraulic braking dress
It sets, comprising: pedal cylinder part is generated hydraulic by means of the pressurization of pedal；Master cylinders portion perceives the pedal, generates
It is hydraulic；Wheel cylinder portion is installed in multiple wheels respectively, provides brake force to wheel；Storage unit stores fluid；It mixes back
Road portion, connection pedal cylinder part and a part in wheel cylinder portion, guide fluid, are connected to storage unit and master cylinders portion；It is main
Circuit portion, connection master cylinders portion and the wheel cylinder portion for being not attached to mixed circuit portion, guide fluid, are connected to storage unit；And
Hydraulic lattice, connection mixed circuit portion and major loop portion, limit the movement of fluid；Although the patent of invention simplifies hydraulic
Circuit reduces with number of packages.But the brake apparatus integrated level is low, bulky, it is difficult to be arranged in automobile ante-chamber, versatility is lower
Installation is inconvenient.
For another example, application No. is 201610963083.3 Chinese invention patent applications to disclose a kind of brake booster, packet
It includes and is braked pedal-driven and the input lever that moves axially forward and is converted into moving along a straight line by the rotating drive movements of motor
Power-assisted push piece, be equipped between the input lever and power-assisted push piece for measuring the opposite of input lever and power-assisted push piece relative travel
Displacement detector, the relative displacement detection device include the first displacement sensor, the first magnetite and connection electric wire, and described the
One displacement sensor and the first magnetite is oppositely arranged and mutual induction, first displacement sensor is connect with power-assisted push piece, institute
The first magnetite is stated to connect with input lever.The application for a patent for invention is equipped with relative displacement detection dress between input lever and power-assisted push piece
It sets, the relative displacement of input lever and power-assisted push piece in braking process is capable of detecting when using relative displacement detection device, so that
ECU control motor driven power-assisted push piece is moved, and accuracy is improved.But response speed is slower, structure is not tight enough
It gathers.
Summary of the invention
To overcome above-mentioned shortcomings and deficiencies in the prior art, the present invention provide a kind of integrated level it is higher, it is stable, can
The stronger a kind of integrated type electrical hydraulic braking power assisting device of higher and impact resistance by property.In addition, the device can not only
Meet the needs of electric vehicle, but also can satisfy the demand in terms of the braking of intelligent driving.
To achieve the above object, first technical solution of the invention is: a kind of integrated type electrical hydraulic braking power-assisted dress
It sets, including master cylinder component, housing unit, motor controller；The inner cavity of the master cylinder of the master cylinder component with
The cavity of the shell of housing unit penetrates through；Spring assembly is installed in the inner cavity；In the top end surface of the master cylinder
It is provided with the first axially projecting flange, sliding block return spring, the sliding block return spring are set on first flange
One end be sleeved on first flange, the other end be sleeved on input sliding block the second flange on；The motor has hollow
Output shaft is equipped with the ball-screw of ball screw assembly, the feed screw nut of the ball screw assembly, in the hollow output shaft
It is installed in rotation in the cavity by rolling bearing.
The master cylinder component mainly include master cylinder, the first spring assembly, second spring component, first piston,
Second piston and connector sleeve.Master cylinder internal cavity successively installs the first spring assembly, first piston, the second bullet from left to right
Spring component and second piston.Connector sleeve is installed on master cylinder top.
The housing unit mainly includes shell, planetary gear reducing mechanism, ball screw assembly, bearing, input sliding block, goes out
Power head, power output bar connecting shaft, power output pole socket, reaction plate, input shaft limit metal plate, hall displacement transducer chip and magnetic material
Material.Power output head, power output bar connecting shaft, power output pole socket, reaction plate and input sliding block are successively mounted for a component, which exists
Left and right is slided together in shell cavity, and ball screw assembly, includes feed screw nut and ball screw two parts.
Preferably, further include brake force input shaft, the brake force input shaft sequentially pass through motor hollow output shaft,
Input shaft limits metal plate and input sliding block movable contact；The hollow structure is movably placed on the brake force input shaft
In ball-screw.
In any of the above-described scheme preferably, Hall position is fixedly installed with by fixed bracket on the input sliding block
Displacement sensor chip；The hall displacement transducer chip is electrically connected by route and the controller；The Hall displacement
Sensor chip can be moved left and right with the input sliding block.
In any of the above-described scheme preferably, magnetic material is installed on input shaft limit metal plate.
In any of the above-described scheme preferably, the magnetic material is magnet.
In any of the above-described scheme preferably, the feed screw nut is fixedly connected with the hollow output shaft.
In any of the above-described scheme preferably, planet-gear speed reducer is fixedly installed in the hollow output shaft
Structure；The planetary gear reducing mechanism, including planet carrier, sun gear, planet wheel spindle, planetary gear and outer gear ring；The planet
Gear is fixedly mounted on the planet wheel spindle by rolling bearing and is limited with shaft block ring；The planet wheel spindle is fixedly mounted
On the planet carrier.
In any of the above-described scheme optionally, the planet carrier of the planetary gear reducing mechanism is set with by the way that flat key is fixed
On feed screw nut.
In any of the above-described scheme preferably, the planetary gear is engaged with outer gear ring, and the outer gear ring is fixedly mounted
In the top position of the cavity.Specifically, the outer gear ring is fixedly mounted on the top position of the cavity by interference fit
It sets.
In any of the above-described scheme preferably, reaction plate, the reaction plate are fixedly installed on the input sliding block
It is placed in the mounting groove opened up on the shaft core position of the input sliding block.
In any of the above-described scheme preferably, axial annulus is also provided on the axial direction of the input sliding block
Slot；Power output pole socket is connected in the axial annular groove internal buckle；Power output is fixedly installed on the shaft core position of the power output pole socket
Bar connecting shaft；One end of the power output bar connecting shaft is placed in the centre bore of the power output pole socket, and the other end is fixedly connected with out
Power head；The recessed portion movable contact of the power output head and the second piston.
In any of the above-described scheme preferably, it is set with input shaft guide sleeve in the tail portion of the brake force input shaft,
Push rod spring is set on the input shaft guide sleeve.
In any of the above-described scheme preferably, it is offered on the tail end face of the brake force input shaft axially mounted
Hole, riveting has bulb push rod in the axially mounted hole.
In any of the above-described scheme preferably, push rod spring seat is rotationally set on the bulb push rod；Institute
The one end for stating push rod spring is sleeved on input shaft guide sleeve, and the other end is sleeved on push rod spring seat.
In any of the above-described scheme preferably, the tail portion of the bulb push rod is fixedly installed with push rod by tight split nut
Fork.
In any of the above-described scheme preferably, dust cover is set in the circumferential exterior of the push rod spring.
In any of the above-described scheme preferably, at least one company can be fixedly installed on the master cylinder with penetrating through
Female connector is fixedly installed with fuel inlet fitting on the connector sleeve, and the inner cavity of the fuel inlet fitting and the master cylinder penetrates through.
In any of the above-described scheme preferably, the quantity of the connector sleeve be two and compartment of terrain be fixedly mounted on it is described
On master cylinder.
In any of the above-described scheme preferably, the master cylinder is fixedly mounted on the shell by sealing axle sleeve
Bottom.
In any of the above-described scheme preferably, the motor is DC brushless motor.
In any of the above-described scheme preferably, the planetary gear quantity is three.
Second object of the present invention is to provide a kind of integrated type electrical hydraulic braking boosting method, this method include with
Lower step:
Step S1: driver steps on brake pedal and brake force input shaft is driven to move downward, while moving downward with moving magnet, Hall
Displacement sensor chip and magnet generate relative displacement；
Step S2: the signal measured will be dealt into controller by hall displacement transducer chip, and the controller controls electric motor starting
Operation；
Step S3: the hollow output shaft rotation of motor drives planetary reduction gear and feed screw nut's linkage, then drives rolling
Ballscrew moves downward；
Step S4: ball screw moves downward and the input sliding block contacted is pushed to move downward；Eventually by power output head
Push away second piston presses the inner cavity for moving and compressing master cylinder to establish hydraulic realization braking to the left；
Successively execute step S1- step S4；
Step S5: braking is released when driver loosens the brake, push rod spring spring force makes magnet and brake force input shaft one
It rises and moves right, the signal measured is dealt into controller by hall displacement transducer chip, and the controller controls motor reversal, rolling
Ballscrew moves right；Sliding block is inputted under the collective effect of sliding block return spring and the first spring assembly and second spring component
It is restored to initial position to the right；
Step S6: when motor fails in an emergency situation, driver steps on brake pedal, brake pedal pass sequentially through push rod fork,
Bulb push rod, brake force input shaft, reaction plate, power output pole socket, power output bar connecting shaft, power output head push second piston compression system
Hydraulic realization braking is established in the inner cavity of dynamic master cylinder.
Compared with prior art this hair invent the advantages of be: integrated type electrical hydraulic braking power assisting device of the invention without
Electronic vacuum pump is needed just to be able to satisfy intelligent driving braking requirement；With run smoothly, shock resistance is strong, low starting current, reliability
The advantages of high, compact is convenient for arrangement；Using motor driven, fast response time, the response time is 120 milliseconds to 150 millis
Second or so, it is 200 to 300 milliseconds shorter than the response time of ESP module；It is adaptive that a kind of parameter is designed using DC brushless motor
The parameter of the fuzzy PID control strategy answered, the parameter and dragging load that overcome traditional motor itself can be sent out in the process of running
Changing, prevent the PID controller of preset parameter is from making system all keep performance indicator when designing under the various operating conditions
Disadvantage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one preferred embodiment of integrated type electrical hydraulic braking power assisting device according to the invention.
Fig. 2 is a preferred embodiment of the master cylinder of integrated type electrical hydraulic braking power assisting device according to the invention
Structural schematic diagram.
Fig. 3 is a preferred embodiment of the spring assembly of integrated type electrical hydraulic braking power assisting device according to the invention
Structural schematic diagram.
Fig. 4 is a preferred embodiment of the feed screw nut of integrated type electrical hydraulic braking power assisting device according to the invention
Structural schematic diagram.
Specific embodiment
Explanation is further elaborated to the preferred embodiment of the present invention with reference to the accompanying drawing；
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings is merely for convenience of description the utility model and simplifies description, rather than indication or suggestion institute
The device or element of finger must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this hair
Bright limitation.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively heavy
The property wanted or the quantity for implicitly indicating indicated technical characteristic, the feature for defining " first ", " second " etc. as a result, can be bright
Show or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple " contain
Justice is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
Embodiment 1:
As shown in Figs 1-4, a kind of integrated type electrical hydraulic braking power assisting device without planetary gear reducing mechanism, including system
Power input shaft 24, master cylinder 3, shell 10, motor 25 and controller.The controller is mounted in plastic casing.Institute
It states and PCB circuit board is installed on plastic casing.The plastic casing, which is screwed, to be mounted on metal plate bracket 34.Metal plate branch
Frame 34 is screwed installation on the housing 10.Motor 25 is DC brushless motor or stepper motor.Motor 25 has hollow
The hollow output shaft 42 of structure.The inner cavity 38 of master cylinder 3 and the cavity 39 of shell 10 are penetrated through and are connected.Specifically, master cylinder 3
Pass through the fixed bottom for being connected to shell 10 of sealing axle sleeve 55.Fixing sleeve is equipped with sealing gear in the outer circumferential walls of sealing axle sleeve 55
Circle 56.It can be fixedly installed at least one connector sleeve 1 on master cylinder 3 with penetrating through, is fixedly installed on the connector sleeve 1
The inner cavity 38 of fuel inlet fitting 2, the fuel inlet fitting 2 and the master cylinder 3 penetrates through.In the present embodiment, the connector sleeve 1
Quantity is two and what is be spaced is fixedly mounted on the master cylinder 3.
The first spring assembly 35 and second spring component 37 are sequentially installed in inner cavity 38.First spring assembly 35 and
Two spring assembly 37 is axial horizontally disposed.The top of first spring assembly 35 is provided with first piston 33.Described
The top of two spring assemblies 37 is provided with second piston 36.First spring assembly 35, including first back-moving spring 47, the first spring
The 48, first valve rod 49 of seat and the first top plate 50.First spring base 48 is cylindrical structure.First valve rod 49 is the rod-shaped knot of cylinder
Structure.Cylindrical boss 55 is fixedly installed on the bottom center location of inner cavity 38.Equally, the axial arrangement of cylindrical boss 55.
First back-moving spring 47 is sleeved on the first spring base 48.First spring base 48 is axial to be snapped on cylindrical boss 55.First
Valve rod 49 is placed in the first spring base 48 and is fixedly connected across the top through-hole of the first spring base 48 with the first top plate 50.First
Top plate 50 is circular configuration and the first top plate 50 is placed in 57 in the limiting groove of first piston 33.Limiting groove 57 is trapezium structure
Cylinder shape groove.Further, one end of first back-moving spring 47 snaps on the first spring base 48, the other end and the first top
Plate 50 is fixedly connected and by the fixed limit of the first top plate 50.Radial convex is provided on the lower circumference wall surface of first valve rod 49
The first protrusion 69 out.First valve rod 49 is limited in the first spring base 48 by the first valve rod 49 by the first protrusion 69.
Second spring component 37, including second back-moving spring 51, second spring seat 52, the second valve rod 53 and the second top plate
54.Second spring component 37 is placed in the accommodating chamber formed between first piston 33 and second piston 36.Second back-moving spring 51
It is sleeved on second spring seat 52.Second valve rod 53 passes through 52 top drilling of second spring seat and is fixedly connected simultaneously with the second top plate 54
It is limited by the way that the second top plate 54 is fixed.In the mobilizable circular groove 58 for being placed in 36 bottom of second piston of second top plate 54.Circle
Connected in star 58 is similarly the cylinder shape groove of trapezium structure.Radially protruding is provided on the lower circumference wall surface of second valve rod 53
Second protrusion 70.Second valve rod 53 is limited in second spring seat 52 by the second valve rod 53 by the second protrusion 70.
What is be spaced in the circumferential wall of inner cavity 38 offers multiple ring grooves, respectively the first ring groove 59,
Two ring grooves 60, third ring groove 61 and the 4th ring groove 62.The first sealing ring is inlaid in first ring groove 59
63, the second sealing ring 64 is inlaid in the second ring groove 60.First sealing ring 63 and the second sealing ring 64 can be sleeved on
One piston 33 and mobilizable and first piston 33 outer circumferential walls movable contact.Third is inlaid in third ring groove 61
Sealing ring 65 is inlaid with the 4th sealing ring 66 in the 4th ring groove 62.Third sealing ring 65 and the 4th sealing ring 66 can cover
It is in second piston 36 and mobilizable with second piston 36 outer circumferential walls movable contact.In the present embodiment, first is close
Seal 63, the second sealing ring 64, third sealing ring 65 and the 4th sealing ring 66 are lip-type packing.
The first axially projecting flange 40 is provided in the top end surface of master cylinder 3.It is set on the first flange 40
There is sliding block return spring 5.One end of sliding block return spring 5 is sleeved on the first flange 40, and the other end is sleeved on input sliding block 29
The second flange 41 on.Second piston 36 is in sliding block return spring 5.Pass through the fixed peace of fixed bracket on input sliding block 29
Equipped with hall displacement transducer chip 6；Hall displacement transducer chip 6 is electrically connected by route and the controller.Hall
Displacement sensor chip 6 can be moved left and right with the input sliding block 29.The material that is magnetic is installed on input shaft limit metal plate 28
Material 7.In the present embodiment, the magnetic material 7 is magnet.
The hollow output shaft 42 for sequentially passing through motor 25 of brake force input shaft 24, input shaft limit metal plate 28 with it is described defeated
Enter 29 movable contact of sliding block.The ball-screw of hollow structure, the ball are rotatably set on brake force input shaft 24
Feed screw nut 43 on lead screw is rotatably fixedly mounted in cavity 39 by bearing 8.In the present embodiment, feed screw nut 43
Directly it is fixedly connected with hollow output shaft 42.Bearing 8 is sleeved on the first step circle 68 of feed screw nut 43.Hollow output shaft 42
Rotation drive feed screw nut 43 rotation then drive ball screw 27 move back and forth realize drive input sliding block 29 move left and right.
Ball screw 27 with input sliding block 29 it is movable contact and by input sliding block 29 compressing second piston 36 move downward.In this reality
It applies in example, is fixedly installed with reaction plate 30 on input sliding block 29.Reaction plate 30 is placed on the shaft core position of input sliding block 29 and opens
If mounting groove 44 in.Further, the mounting groove 44 of circular configuration is offered on the center in 29 left side of input sliding block.
The reaction plate 30 of circular configuration is removably installed in mounting groove 44.It inputs on the axial direction of sliding block 29 and is also provided with axis
To annular groove 45.Power output pole socket 31 is snapped in axial annular groove 45.Reaction plate 30 is placed in input sliding block 29 and power output pole socket
Between 31.Pole socket 31 of contributing is in the left side of input sliding block 29.Fixed riveting has on the left side shaft core position of power output pole socket 31
Power output bar connecting shaft 32；The one end for bar connecting shaft 32 of contributing and the riveting of power output pole socket 31 and the centre bore in power output pole socket 31
Interior, the other end is fixedly connected with power output head 4.67 movable contact of recessed portion for the head 4 and second piston 36 of contributing.
Input shaft guide sleeve 17 is set in the tail portion of brake force input shaft 24.It is set with and pushes away on input shaft guide sleeve 17
Bar spring 18.Axially mounted hole 46 is offered on the tail end face of brake force input shaft 24.It is riveted in axially mounted hole 46
There is bulb push rod 22.Push rod spring seat 20 is rotationally set on bulb push rod 22.One end of push rod spring 18 is sleeved on
On input shaft guide sleeve 17, the other end is sleeved on push rod spring seat 20.It is set in the circumferential exterior of push rod spring 18 dust-proof
Cover 19.The tail portion of bulb push rod 22 is fixedly installed with push rod fork 21 by tight split nut 23.Push rod fork 21 and the braking of vehicle are stepped on
Plate connection.
Embodiment 2:
As shown in Figs 1-4, a kind of integrated type electrical hydraulic braking power assisting device with planetary gear reducing mechanism, including braking
Power input shaft 24, master cylinder 3, shell 10, motor 25 and controller.The controller is mounted in plastic casing.Described
PCB circuit board is installed on plastic casing.The plastic casing, which is screwed, to be mounted on metal plate bracket 34.Metal plate bracket
34 are screwed installation on the housing 10.Motor 25 is DC brushless motor.Motor 25 has the hollow defeated of hollow structure
Shaft 42.The inner cavity 38 of master cylinder 3 and the cavity 39 of shell 10 are penetrated through and are connected.Specifically, master cylinder 3 passes through sealing axle sleeve
The 55 fixed bottoms for being connected to shell 10.Fixing sleeve is equipped with Sealing shield ring 56 in the outer circumferential walls of sealing axle sleeve 55.It is braking
It can be fixedly installed at least one connector sleeve 1 on master cylinder 3 with penetrating through, is fixedly installed with fuel inlet fitting 2 on the connector sleeve 1,
The inner cavity 38 of the fuel inlet fitting 2 and the master cylinder 3 penetrates through.In the present embodiment, the quantity of the connector sleeve 1 is two
And compartment of terrain is fixedly mounted on the master cylinder 3.
The first spring assembly 35 and second spring component 37 are sequentially installed in inner cavity 38.First spring assembly 35 and
Two spring assembly 37 is axial horizontally disposed.The top of first spring assembly 35 is provided with first piston 33.Described
The top of two spring assemblies 37 is provided with second piston 36.First spring assembly 35, including first back-moving spring 47, the first spring
The 48, first valve rod 49 of seat and the first top plate 50.First spring base 48 is cylindrical structure.First valve rod 49 is the rod-shaped knot of cylinder
Structure.Cylindrical boss 55 is fixedly installed on the bottom center location of inner cavity 38.Equally, the axial arrangement of cylindrical boss 55.
First back-moving spring 47 is sleeved on the first spring base 48.First spring base 48 is axial to be snapped on cylindrical boss 55.First
Valve rod 49 is placed in the first spring base 48 and is fixedly connected across the top through-hole of the first spring base 48 with the first top plate 50.First
Top plate 50 is circular configuration and the first top plate 50 is placed in the limiting groove 57 of first piston 33.Limiting groove 57 is trapezium structure
Cylinder shape groove.Further, one end of first back-moving spring 47 snaps on the first spring base 48, the other end and the first top
Plate 50 is fixedly connected and by the fixed limit of the first top plate 50.Radial convex is provided on the lower circumference wall surface of first valve rod 49
The first protrusion 69 out.First valve rod 49 is limited in the first spring base 48 by the first valve rod 49 by the first protrusion 69.
Second spring component 37, including second back-moving spring 51, second spring seat 52, the second valve rod 53 and the second top plate
54.Second spring component 37 is placed in the accommodating chamber formed between first piston 33 and second piston 36.Second back-moving spring 51
It is sleeved on second spring seat 52.Second valve rod 53 passes through 52 top drilling of second spring seat and is fixedly connected simultaneously with the second top plate 54
It is limited by the way that the second top plate 54 is fixed.In the mobilizable circular groove 58 for being placed in 36 bottom of second piston of second top plate 54.Circle
Connected in star 58 is similarly the cylinder shape groove of trapezium structure.Radially protruding is provided on the lower circumference wall surface of second valve rod 53
Second protrusion 70.Second valve rod 53 is limited in second spring seat 52 by the second valve rod 53 by the second protrusion 70.
Compartment of terrain offers multiple ring grooves, respectively the first ring groove 59, in the circumferential wall of inner cavity 38
Two ring grooves 60, third ring groove 61 and the 4th ring groove 62.The first sealing ring is inlaid in first ring groove 59
63, the second sealing ring 64 is inlaid in the second ring groove 60.First sealing ring 63 and the second sealing ring 64 can be sleeved on
One piston 33 and mobilizable and first piston 33 outer circumferential walls movable contact.Third is inlaid in third ring groove 61
Sealing ring 65 is inlaid with the 4th sealing ring 66 in the 4th ring groove 62.Third sealing ring 65 and the 4th sealing ring 66 can cover
It is in second piston 36 and mobilizable with second piston 36 outer circumferential walls movable contact.In the present embodiment, first is close
Seal 63, the second sealing ring 64, third sealing ring 65 and the 4th sealing ring 66 are lip-type packing.
The first axially projecting flange 40 is provided in the top end surface of master cylinder 3.It is set on the first flange 40
There is sliding block return spring 5.One end of sliding block return spring 5 is sleeved on the first flange 40, and the other end is sleeved on input sliding block 29
The second flange 41 on.Second piston 36 is in sliding block return spring 5.Pass through the fixed peace of fixed bracket on input sliding block 29
Equipped with hall displacement transducer chip 6；Hall displacement transducer chip 6 is electrically connected by route and the controller.Hall
Displacement sensor chip 6 can be moved left and right with the input sliding block 29.The material that is magnetic is installed on input shaft limit metal plate 28
Material 7.In the present embodiment, the magnetic material 7 is magnet.
The hollow output shaft 42 for sequentially passing through motor 25 of brake force input shaft 24, input shaft limit metal plate 28 with it is described defeated
Enter 29 movable contact of sliding block.The ball-screw of hollow structure, the ball are rotatably set on brake force input shaft 24
Feed screw nut 43 on lead screw is rotatably fixedly mounted in cavity 39 by bearing 8.In the present embodiment, feed screw nut 43
It is fixedly connected with the planet carrier 26 of planetary gear reducing mechanism.Specifically, the planet carrier 26 of the planetary gear reducing mechanism is logical
Flat key 9 is crossed to be fixedly set on the second step circle 71 of feed screw nut 43.Bearing 8 is sleeved on the first step circle of feed screw nut 43
On 68.
Planetary gear reducing mechanism is fixedly installed in the hollow output shaft 42 of motor 25.The planet-gear speed reducer
Structure, including planet carrier 26, sun gear 16, planet wheel spindle 11, planetary gear 12 and outer gear ring 13；The planetary gear 12 passes through solid
Dead axle holds 14 and is fixedly mounted on the planet wheel spindle 11 and is limited with shaft block ring 15；Planet wheel spindle 11 is fixedly mounted on planet
On frame 26.Planetary gear 12 is engaged with outer gear ring 13, and the outer gear ring 13 is fixedly mounted on the cavity 39 by interference fit
Top position.Sun gear 16 is fixedly set in hollow output shaft 42 by interference fit.In the present embodiment, the planet
The quantity of the planetary gear 12 of gear reduction is three.
The rotation of hollow output shaft 42 drives sun gear 16 to rotate.The rotation of sun gear 16 drives the fixation being engaged with to be expert at
Planetary gear 12 in carrier 36 rotates, so that planet carrier 26 be driven to rotate.Planet carrier 26 passes through flat key 9 and the ball-screw
Feed screw nut 43 link.The rotation of planet carrier 26 drives the rotation of feed screw nut 43 then to realize and drives ball-screw 27 to the left and right
Movement is realized and input sliding block 29 is driven to be moved to the left, and pushes second piston 36 to compress braking master to the left eventually by power output head 4
Cylinder 3 establishes hydraulic realization braking function.
Reaction plate 30 is fixedly installed on input sliding block 29.Reaction plate 30 is placed on the shaft core position of input sliding block 29 and opens
If mounting groove 44 in.Further, the mounting groove 44 of circular configuration is offered on the center in 29 left side of input sliding block.
The reaction plate 30 of circular configuration is removably installed in mounting groove 44.It inputs on the axial direction of sliding block 29 and is also provided with axis
To annular groove 45.Power output pole socket 31 is snapped in axial annular groove 45.Reaction plate 30 is placed in input sliding block 29 and power output pole socket
Between 31.Pole socket 31 of contributing is in the left side of input sliding block 29.Fixed riveting has on the left side shaft core position of power output pole socket 31
Power output bar connecting shaft 32；The one end for bar connecting shaft 32 of contributing and the riveting of power output pole socket 31 and the centre bore in power output pole socket 31
Interior, the other end is fixedly connected with power output head 4.67 movable contact of recessed portion for the head 4 and second piston 36 of contributing.
Input shaft guide sleeve 17 is set in the tail portion of brake force input shaft 24.It is set with and pushes away on input shaft guide sleeve 17
Bar spring 18.Axially mounted hole 46 is offered on the tail end face of brake force input shaft 24.It is riveted in axially mounted hole 46
There is bulb push rod 22.Push rod spring seat 20 is rotationally set on bulb push rod 22.One end of push rod spring 18 is sleeved on
On input shaft guide sleeve 17, the other end is sleeved on push rod spring seat 20.It is set in the circumferential exterior of push rod spring 18 dust-proof
Cover 19.The tail portion of bulb push rod 22 is fixedly installed with push rod fork 21 by tight split nut 23.Push rod fork 21 and the braking of vehicle are stepped on
Plate connection.
Integrated type electrical hydraulic braking power assisted operation in the present embodiment the following steps are included:
Step S1: driver steps on brake pedal and brake force input shaft 24 is driven to move downward, while moving downward with moving magnet, suddenly
That displacement sensor chip 6 generates relative displacement with magnet；
Step S2: the signal measured will be dealt into controller by hall displacement transducer chip 6, and the controller control motor 25 opens
Dynamic operation；
Step S3: the rotation of hollow output shaft 42 of motor 25 drives planetary reduction gear and feed screw nut 43 to link, then
Ball screw 27 is driven to move downward；
Step S4: ball screw 27 moves downward and the input sliding block 29 contacted is pushed to move downward；Eventually by power output
Head 4 pushes away second piston 36 and the inner cavity 38 for moving and compressing master cylinder 3 is pressed to establish hydraulic realization braking to the left；
Successively execute step S1- step S4；
Step S5: braking is released when driver loosens the brake, 18 spring force of push rod spring makes magnet and brake force input shaft
24 move right together, and the signal measured is dealt into controller by hall displacement transducer chip 6, and the controller controls motor 25
Reversion, ball screw 27 move right；Sliding block 29 is inputted in sliding block return spring 5 and the first spring assembly 35 and second spring group
It is restored to initial position to the right under the collective effect of part 37；
Step S6: when motor 25 fails in an emergency situation, driver steps on brake pedal, and brake pedal passes sequentially through push rod fork
21, bulb push rod 22, brake force input shaft 24, reaction plate 30, power output pole socket 31, power output bar connecting shaft 32, power output head 4 push
Hydraulic realization braking is established in the inner cavity 38 that second piston 36 compresses master cylinder 3.
After having read this specification, those skilled in the art are not difficult to find out, the present invention is bonded by the prior art, this
Some give detailed description to the prior art of a little each sections for constituting invention herein, some then concisely consider simultaneously for specification
Repeat to non-all matters, big and small, but those skilled in the art read specification after just know institute's cloud.And those skilled in the art
It is inventor's many years it is not difficult to find out that being to be full of a large amount of creative works to the combination of these prior arts to constitute the present invention
The crystallization of theory analysis and many experiments.Those skilled in the art can equally find out that described herein is every from specification
Any combination of a technical solution and each feature belongs to a part of the invention.
Claims (10)
1. a kind of integrated type electrical hydraulic braking power assisting device, including master cylinder component, housing unit, motor (25) and control
Device；The cavity (39) of the shell (10) of the inner cavity (38) and the housing unit of the master cylinder (3) of the master cylinder component
Perforation；Spring assembly is installed in the inner cavity (38)；It is provided in the top end surface of the master cylinder (3) axially projecting
The first flange (40), be set with sliding block return spring (5) on first flange (40), it is characterised in that: the sliding block
One end of return spring (5) is sleeved on first flange (40), and the other end is sleeved on the second flange of input sliding block (29)
(41) on；The motor (25) has hollow output shaft (42), is equipped with ball screw assembly, in the hollow output shaft (42)
Ball-screw (27), the feed screw nut (43) of the ball screw assembly, is installed in rotation on described by rolling bearing (8)
In cavity (39).
2. integrated type electrical hydraulic braking power assisting device as described in claim 1, it is characterised in that: further include brake force input
Axis (24), the brake force input shaft (24) sequentially pass through the hollow output shaft (42) of motor (25), input shaft limit metal plate
(28) with input sliding block (29) movable contact；The rolling of the hollow structure is movably placed on the brake force input shaft (24)
In ballscrew (27).
3. integrated type electrical hydraulic braking power assisting device as claimed in claim 1 or 2, it is characterised in that: in input sliding block
(29) hall displacement transducer chip (6) are fixedly installed with by fixed bracket on；Hall displacement transducer chip (6) passes through line
Road and the controller are electrically connected；Hall displacement transducer chip (6) can be moved left and right with the input sliding block (29).
4. integrated type electrical hydraulic braking power assisting device as claimed in claim 2, it is characterised in that: limited in the input shaft
Magnetic material (7) are installed on metal plate (28).
5. integrated type electrical hydraulic braking power assisting device as claimed in claim 4, it is characterised in that: the magnetic material (7)
For magnet.
6. integrated type electrical hydraulic braking power assisting device as described in claim 1, it is characterised in that: the feed screw nut (43)
It is fixedly connected with the hollow output shaft (42).
7. integrated type electrical hydraulic braking power assisting device as described in claim 1, it is characterised in that: in the hollow output shaft
(42) planetary gear reducing mechanism is fixedly installed on；The planetary gear reducing mechanism, including planet carrier (26), sun gear
(16), planet wheel spindle (11), planetary gear (12) and outer gear ring (13)；Planetary gear (12) passes through fixing bearing (14) fixed peace
It is limited on the planet wheel spindle (11) and with shaft block ring (15)；Planet wheel spindle (11) is fixedly mounted on the planet carrier
(26) on.
8. integrated type electrical hydraulic braking power assisting device as claimed in claim 6, it is characterised in that: the planetary gear speed-reduction
The planet carrier (26) of mechanism is fixedly set on feed screw nut (43) by flat key (9).
9. integrated type electrical hydraulic braking power assisting device as claimed in claim 7, it is characterised in that: the planetary gear (12)
It is engaged with outer gear ring (13), the outer gear ring (13) is fixedly mounted on the top position of the cavity (39).
10. integrated type electrical hydraulic braking power assisting device as described in claim 1, it is characterised in that: in the input sliding block
(29) it is fixedly installed on reaction plate (30), the reaction plate (30) is placed on the shaft core position of input sliding block (29) and opens up
Mounting groove (44) in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910693855.XA CN110341677A (en) | 2019-07-30 | 2019-07-30 | A kind of integrated type electrical hydraulic braking power assisting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910693855.XA CN110341677A (en) | 2019-07-30 | 2019-07-30 | A kind of integrated type electrical hydraulic braking power assisting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110341677A true CN110341677A (en) | 2019-10-18 |
Family
ID=68179070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910693855.XA Pending CN110341677A (en) | 2019-07-30 | 2019-07-30 | A kind of integrated type electrical hydraulic braking power assisting device |
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| Country | Link |
|---|---|
| CN (1) | CN110341677A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113511177A (en) * | 2021-08-09 | 2021-10-19 | 吉林东光奥威汽车制动系统有限公司 | Transmission device of electronic hydraulic brake boosting booster mechanism |
| WO2022028522A1 (en) * | 2020-08-07 | 2022-02-10 | 格陆博科技有限公司 | Electro-hydraulic braking system and braking method therefor |
-
2019
- 2019-07-30 CN CN201910693855.XA patent/CN110341677A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022028522A1 (en) * | 2020-08-07 | 2022-02-10 | 格陆博科技有限公司 | Electro-hydraulic braking system and braking method therefor |
| US11518250B2 (en) | 2020-08-07 | 2022-12-06 | Global Technology Co., Ltd. | Electro-hydraulic braking system and braking method thereof |
| CN113511177A (en) * | 2021-08-09 | 2021-10-19 | 吉林东光奥威汽车制动系统有限公司 | Transmission device of electronic hydraulic brake boosting booster mechanism |
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Effective date of registration: 20210128 Address after: No. 456, Binhai 4th Road, Wenzhou Economic and Technological Development Zone, Wenzhou City, Zhejiang Province Applicant after: Wenzhou Ruili Automobile Technology Co., Ltd Address before: 325299 2666 Development Zone, Ruian Economic Development Zone, Wenzhou, Zhejiang Applicant before: Ruili Group Ruian Auto Parts Co.,Ltd. |