CN207466635U - A kind of electric booster braking system based on double-rotor machine - Google Patents
A kind of electric booster braking system based on double-rotor machine Download PDFInfo
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- CN207466635U CN207466635U CN201721619200.0U CN201721619200U CN207466635U CN 207466635 U CN207466635 U CN 207466635U CN 201721619200 U CN201721619200 U CN 201721619200U CN 207466635 U CN207466635 U CN 207466635U
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Abstract
The utility model provides a kind of electric booster braking system based on double-rotor machine,Enclosure interior replaces single-rotor motor using brushless, permanently double-rotor machine,Outer rotor is connected with master cylinder realizes brake boost,Internal rotor is connected with brake pedal realizes pedal sense simulation,Setting electric chuck with three jaws in housing,It still can be by controlling the action of electric chuck with three jaws when double-rotor machine is because of malfunction and failure,The brake force of driver is made to directly act on master cylinder,Generate brake force,Since internal rotor and outer rotor can control respectively,Brake boost and brake feel is made to feed back and not interfere with each other,The coupling and decoupling of operator brake power and motor braking power are conveniently realized,Eliminate the complex parts such as pedal sense simulator to realize above-mentioned function in the prior art,It is simple in structure,Size is small,It is arranged convenient for real vehicle,Realize the functions such as active brake and failure backup,ESP can also be effectively integrated,The active control technologies such as ACC,Realize Vehicular intelligentization control.
Description
Technical field
The utility model belongs to the brake device for car field in Vehicle Engineering, is related to a kind of based on double-rotor machine
Electric booster braking system.
Background technology
With the fast development of electric vehicle and intelligent automobile, the brake fluid system of traditional vacuum booster formula is
It cannot meet the requirements.Electro-hydraulic brake (EHB) and electric mechanical braking (EMB) are also due to high energy consumption, no-failure protection etc. are asked
Topic is constrained development.In recent years, electric booster braking system starts to become the research hotspot of braking industry.Due to electric boosted
Braking system eliminates the vacuum booster generally used on orthodox car, and it is simple in structure, low energy consumption, have fail safe,
Arrangement is convenient, therefore the inevitable direction that will develop as braking system.
Although there are this many advantages for electric booster braking system, but lack to driving in existing technical solution at present
The considerations of person's of sailing brake force is coupled and is decoupled with motor braking power.In fact, the coupling of this two power is design electricity with decoupling
The factor that emphasis is needed to consider during dynamic energy assisted braking system.How to accomplish operator brake power and motor braking power export simultaneously and
It does not interfere with each other, and reduces the parts for being used to implement correlation function as best one can, have become the hot spot of braking industry research.
In a kind of Electro-hydraulic brake system with electrodynamic braking assist function shown in patent CN105523028A, adopt
Pedal sense is simulated with single motor power-assisted, and by adjusting the size of motor power-assisted.In this scheme, the power output of motor was both
It is output in braking system and brake boost is provided, feed back to simulate pedal sense on brake pedal again, be not carried out pair
The decoupling of operator brake power and motor braking power, brake feel are very poor.
In a kind of fluid pressure type Dual-motors Driving electronic hydraulic brake system shown in patent CN104309597A, double electricity are set
Machine transmission system, for a set of electric system for simulating pedal sense, another set of electric system is used to implement brake boost.This side
In case, need to set individual motor and relevant transmission mechanism, hydraulic components to realize that pedal sense is simulated, structure is multiple
It is miscellaneous, it is of high cost and be not easy to real vehicle arrangement；In addition, operator brake power is coupled with motor braking power in fluid pressure line,
The interaction of two power of consideration is needed, operator brake power is be easy to cause and interacts with motor braking power.
A kind of integrated decoupling type electric booster braking system suitable for regenerative braking shown in patent CN106627551A
In system, using components such as reversal valve, front axle isolating valve, liquid storage cylinders, the brake fluid in master cylinder is isolated by reversal valve and front axle
Valve is imported into liquid storage cylinder, by being designed to the spring in liquid storage cylinder, realizes the simulation of pedal sense.In this scheme,
Pedal sense is simulated by then passing through the adjusting hardware such as liquid storage cylinder and spring, it is impossible to match fine electric elements and control is calculated
Method, simulated feel are poor.
Invention content
The utility model in order to overcome it is of the existing technology cannot be effectively to operator brake power and motor braking power
The defects of being coupled and being decoupled provides a kind of electric booster braking system based on double-rotor machine, not only can be effective
Realize that operator brake power is coupled and decoupled with motor braking power in ground, additionally it is possible to by inner and outer rotors and electric three-jaw
Chuck sets different control strategies, provides a variety of braking modes.
The utility model is achieved by the following technical solution：
A kind of electric booster braking system based on double-rotor machine, which is characterized in that including a housing, with driver
The direction of brake force input is front, and there are one double-rotor machine, double-rotor machine includes one with fixed for enclosure interior setting
The section of sub- winding for circular ring shape stator core, one with outer rotor winding circular ring shape outer rotor iron core and one in
Stator core is fixedly mounted in rotor core, housing front inner, opens that there are one circular through hole, a circles in the middle part of housing forward end face
The forepart of the No.1 push rod of cylindricality passes through the circular through hole in housing forward end face, and the middle and back of No.1 push rod extend into the interior of housing
Portion, the front end of No.1 push rod are connect with brake pedal, and for inputting the brake force of driver, No. two hollow lead screws are hollow
Cylindrical type revolving meber, the hollow space of No.1 push rod from No. two hollow lead screws passes through, No. two hollow lead screws and No.1 push rod
Middle part is fixedly connected, and arc helicla flute is machined on the external cylindrical surface of No. two hollow lead screws, and internal rotor iron core is hollow cylinder
Shape revolving meber, is also machined with arc helicla flute on the inner cylinder face of internal rotor iron core, the arc on internal rotor iron core inner circle cylinder
Helicla flute is matched with the arc helicla flute on No. two hollow lead screw external cylindrical surfaces, forms a helical duct, the helical duct
In be equipped with multiple spherical balls, No. two hollow lead screws, internal rotor iron core and spherical ball form No. two ball screw frameworks, interior turn
Internal rotor permanent-magnetic magnet steel is installed on the external cylindrical surface of sub- iron core, outer rotor iron core is arranged in internal rotor permanent-magnetic magnet steel with determining
Be fixedly mounted between sub- iron core, on outer rotor iron core there are one cylindric motor output shaft, the rear portion of motor output shaft along its
It axially opens there are one circular through hole, housing is internally provided with a planetary gear set, and planetary gear set is fixed on including one
The gear ring of enclosure interior, one it is concentric with gear ring and positioned at gear ring circumferential inner sun gear and four intervals be uniformly arranged on
Planetary gear between gear ring and sun gear, each planetary gear engage simultaneously with gear ring and sun gear, sun gear and motor output shaft
It is connected by screw, a nut is hollow stepped revolving meber, and the leading portion of nut is big axle journal section, and the back segment of nut is small
Axle journal section, the inner cylinder face of nut are machined with arc helicla flute, and each planetary gear passes through a planet wheel spindle and the big axis of nut
Cervical part of esophagus assembles, and by two taper roll bearing bearings inside housings, a No.1 hollow lead screw is the pilot pin section of nut
Hollow cylindrical revolving meber, is also machined with arc helicla flute on the external cylindrical surface of No.1 hollow lead screw, outside No.1 hollow lead screw
Arc helicla flute on cylindrical surface is matched with the arc helicla flute on nut inner cylinder face, forms a helical duct, the spiral shell
Multiple spherical balls, No.1 hollow lead screw, nut and spherical ball composition No.1 ball screw framework, No.1 are equipped in rotation channel
Push rod passes through the circular through hole at motor output shaft rear portion, and the rear end of No.1 push rod is even extend into an electric chuck with three jaws, and one
After the front end face of claw that the rear end face of number push rod is located at electric chuck with three jaws, No. two push rods are that section is circular straight
Bar, the front end of No. two push rods are connected in electric chuck with three jaws, and the front end face of No. two push rods is located at before the rear end face of claw, and two
The rear end of number push rod passes through the hollow portion of No.1 hollow lead screw, is provided with groove on the rear end face of No.1 hollow lead screw in an axial direction, and one
A power-assisted push rod is stair-stepping cylindrical revolving body, and the leading portion of power-assisted push rod is big axle journal section, the big axle journal section of power-assisted push rod
Line is provided with a blind cylindrical hole centered on the axis of rotation of power-assisted push rod, and blind hole is built-in with cylindrical elastic reaction disk, bullet
Property reaction tray height be more than power-assisted push rod blind hole depth, the back segment of power-assisted push rod is pilot pin section, power-assisted push rod it is small
Axle journal section line centered on the axis of rotation of power-assisted push rod is opened there are one threaded hole, and the big axle journal section clearance fit of power-assisted push rod is pacified
In the groove on No.1 hollow lead screw rear end face, a pedal travel sensor is mounted on No.1 push rod, for measuring
The displacement of No.1 push rod, a master cylinder are fixed on housing, and the piston push rod of master cylinder stretches into the hollow space of rear, living
External screw thread is provided on plug push rod, the pilot pin section of power-assisted push rod is threadedly coupled with piston push rod, two inlets of master cylinder and one
A fluid reservoir connection, a liquid outlet of master cylinder are connected by the inlet of fluid pressure line and a No.1 two-position two-way solenoid valve
Connect, on the fluid pressure line between master cylinder and No.1 two-position two-way solenoid valve installation there are one No.1 pressure sensor, master cylinder it is another
One liquid outlet is connect by fluid pressure line with the inlet of No. two two-position two-way solenoid valves, master cylinder and No. two bi-bit bi-pass
No. two pressure sensors, the liquid outlet of No.1 two-position two-way solenoid valve to pass through there are one installations on fluid pressure line between solenoid valve
Fluid pressure line is connect with an inlet of a hydraulic control unit, and the liquid outlet of No. two two-position two-way solenoid valves passes through hydraulic pressure
Another of pipeline and hydraulic control unit inlet connect, and four liquid outlets of hydraulic control unit pass through fluid pressure line respectively
It is connect with the inlet of four disk brakes on four wheels of vehicle, pedal travel sensor, No.1 pressure pass
Signal of the signal output end of sensor and No. two pressure sensors respectively by data line and the electronic control unit in vehicle is defeated
Enter end connection, No.1 two-position two-way solenoid valve, No. two two-position two-way solenoid valves, hydraulic control unit, electric chuck with three jaws and double
The respective signal receiving end of rotor electric machine is connected respectively by the output terminal of data line and electronic control unit.
Further technical solution includes：
It is equal that the electric chuck with three jaws includes electric chuck with three jaws housing, electric chuck with three jaws motor, chuck and three
The claw of even distribution, the front end face of electric chuck with three jaws housing and the middle part of rear end face are respectively opened there are one circular through hole, and electronic three
Be provided on the rear end face of dog chuck housing three it is centrosymmetric, along the radially-arranged slideway of electric chuck with three jaws housing, it is electronic
Electric chuck with three jaws motor is fixedly mounted in the inside of scroll chuck housing, and multiple arcs are machined on the front end face of the claw
Strip, the arc strip on claw front end face are installed in the slideway in electric chuck with three jaws housing rear end face, ensure that claw can be with
It is slided along the radial direction slideway in electric chuck with three jaws housing rear end face, the inner side end of claw is cylindrical surface, the inner side end of claw
On be machined with different groove, the friction coefficient of inner side end can be increased, No.1 push rod and No. two push rods are mounted on three
In the cylindrical channel that a claw inner side end is surrounded, the chuck be a hollow collar plate shape part, the rear end of chuck
A spiral slide is provided on face, from the outer rim of chuck rear end face to center, the radius of curvature of spiral slide is gradually reduced, chuck
Spiral slide on rear end face is worked in coordination with the arc strip on claw front end face, and claw passes through the arc strip on front end face
It is installed in the helical duct on chuck rear end face, i.e., claw can be slided along the helical duct of chuck rear end face, before chuck
End face is fixedly connected with electric chuck with three jaws motor, i.e., electric chuck with three jaws motor can drive chuck to rotate at the same speed, and electronic three
Dog chuck motor is connected by the output terminal of data line and electronic control unit.
It is uniformly opened on the rear end face of the motor output shaft there are four threaded hole, the sun gear is hollow rank
Ladder configuration, the leading portion of sun gear is big axle journal section, and the back segment of sun gear is pilot pin section, between the leading portion and back segment of sun gear
There are escape, the pilot pin section of sun gear is provided with the gear teeth, and the big axle journal section of sun gear is centered on the axis of rotation of sun gear
Line is uniformly opened there are four threaded hole, and sun gear is connected by screw with motor output shaft.
The housing is stepped revolving meber, and the forepart of housing is big radius of gyration section, and the back segment of housing is small revolution
Radius section, nut are supported on by two taper roll bearings on the small swing radius section inner wall of housing.
The beneficial effects of the utility model are compared with prior art：
1. a kind of electric booster braking system based on double-rotor machine described in the utility model, using double-rotor machine
Instead of traditional single-rotor motor, brake boost is realized by outer rotor, realizes that pedal sense is simulated by internal rotor, eliminates
It is used to implement the complex parts such as the pedal sense simulator of above-mentioned function in the prior art, simple in structure, size is small, convenient for reality
Vehicle is arranged.
2. the double-rotor machine in electric booster braking system described in the utility model is using brushless, permanently birotor electricity
Machine, wherein internal rotor are connected with brake pedal, can realize that brake feel is fed back；Outer rotor is connected with master cylinder, can realize system
Dynamic power-assisted.Since internal rotor and outer rotor can control respectively, brake boost and brake feel is made to feed back and not interfere with each other, easily
Realize the coupling and decoupling of operator brake power and motor braking power.
3. it in electric booster braking system described in the utility model, is lost by the way that electric chuck with three jaws is set to realize braking
Imitate backup functionality.When double-rotor machine because during malfunction and failure, still it can make driving by controlling the action of electric chuck with three jaws
The brake force of member directly acts on master cylinder, generates brake force.
4. the electric booster braking system of the utility model can easily not only merge the prior art, realize actively
The functions such as braking and failure backup, moreover it is possible to it is main to be effectively integrated electronic stability program (ESP), adaptive learning algorithms (ACC) etc.
Dynamic control technology realizes Vehicular intelligentization control.
5. it is described in the utility model it is a kind of based on the electric booster braking system of double-rotor machine in existing braking system
On the basis of remain overall structure and more parts, real vehicle is facilitated to install, it is portable good, and be easy to external equipment
Carry out test experiments.
Description of the drawings
The utility model will be further described below with reference to the accompanying drawings：
Fig. 1 is a kind of structural representation of the electric booster braking system based on double-rotor machine described in the utility model
Figure；
Fig. 2 is the power coupling in a kind of electric booster braking system based on double-rotor machine described in the utility model
Partial structure diagram；
Fig. 3 is the electric three-jaw in a kind of electric booster braking system based on double-rotor machine described in the utility model
The isometric view of chuck；
Fig. 4 is the electric three-jaw in a kind of electric booster braking system based on double-rotor machine described in the utility model
The structure diagram of chuck；
Fig. 5 be a kind of electric booster braking system based on double-rotor machine described in the utility model in claw etc.
Axis surveys view；
Fig. 6 be a kind of electric booster braking system based on double-rotor machine described in the utility model in chuck etc.
Axis surveys view；
Fig. 7 is the electric three-jaw in a kind of electric booster braking system based on double-rotor machine described in the utility model
The isometric view of chuck housing；
Fig. 8 is the claw and card in a kind of electric booster braking system based on double-rotor machine described in the utility model
The assembly relation schematic diagram of disk.
In figure：1. No.1 push rod, 2. stator winding, 3. stator cores, 4. outer rotor iron cores, 5. motor output shafts, outside 6.
The outer winding of rotor, 7. gear rings, 8. planetary gears, 9. planet wheel spindles, 10. nuts, 11. No.1 hollow lead screws, 12. piston push rods, 13.
No. two hollow lead screws, 14. internal rotor iron cores, 15. internal rotor permanent-magnetic magnet steel, 16. electric chuck with three jaws, 17. sun gears, 18. 2
Number push rod, 19. elastic reaction disks, 20. power-assisted push rods, 21. housings, 22. fluid reservoirs, 23. master cylinders, 24. No.1 pressure sensors,
25. No. two pressure sensors, 26. No.1 two-position two-way solenoid valves, 27. No. two two-position two-way solenoid valves, 28. hydraulic control lists
Member, 29. disk brakes, 30. pedal travel sensor, 31. electric chuck with three jaws motors, 32. claws, 33. chucks, 34. electricity
Dynamic scroll chuck housing.
Specific embodiment
Description is made to the utility model below in conjunction with the accompanying drawings：
Refering to Fig. 1, a kind of electric booster braking system based on double-rotor machine described in the utility model, including one
Housing 21, using the direction of operator brake power input as front, housing 21 is internally provided with motor, and motor includes one with fixed
Outer rotor iron core 4 and one of the section of sub- winding 2 for 3, circular ring shapes with outer rotor winding 6 of stator core of circular ring shape
The stator core 3 for circular ring shape there are one cross-section is fixedly mounted in a internal rotor iron core 14,21 front inner of housing.Stator core
3 installed above have stator winding 2.It is opened in the middle part of 21 front end face of housing there are one circular through hole, a cross-section is circular one
The forepart of number push rod 1 passes through the circular through hole of 21 front end face of housing, and the rear end of No.1 push rod 1 extend into the inside of housing 2.No.1
The front end of push rod 1 is connect with brake pedal, for inputting the brake force of driver.One No. two hollow lead screw 13 is hollow circle
Column type revolving meber, the hollow space of No.1 push rod 1 from No. two hollow leading screws pass through, and No. two hollow lead screws 13 are solid with No.1 push rod 1
Fixed connection.Arc helicla flute is machined on the external cylindrical surface of No. two hollow leading screws 13.One internal rotor iron core 14 is hollow circle
Cylindricality revolving meber is also machined with arc helicla flute, the inner cylinder face of internal rotor iron core 14 on the inner cylinder face of internal rotor iron core 14
Arc helicla flute matched with the arc helicla flute of No. two 13 external cylindrical surfaces of hollow lead screw, formed a helical duct, the spiral shell
Multiple spherical balls are equipped in rotation channel.Internal rotor iron core 14 around its own axis rotate when, push spherical ball lead in spiral
It is rolled in road, No. two hollow lead screws 13 and No.1 push rod 1 is pushed to be moved along its axial direction.The external cylindrical surface of internal rotor iron core 14
On be installed with internal rotor permanent-magnetic magnet steel 15.Outer rotor iron core 4 be arranged in internal rotor permanent-magnetic magnet steel 15 and stator core 3 it
Between, there are one cylindric motor output shafts 5 for fixed installation on outer rotor iron core 4.It is opened along its axial direction at the rear portion of motor output shaft 5
There are one circular through hole, uniformly open that there are four threaded holes on the rear end face of motor output shaft 5.Four screw threads on sun gear 17
Hole is identical with 4 threaded hole specifications on the rear end face of motor output shaft 5, and sun gear 17 is connected with motor output shaft by screw
It connects.Housing 21 is internally provided with a planetary gear set, and planetary gear set includes a gear ring being fixed on inside housing 21
7th, one it is concentric with gear ring 7 and positioned at gear ring 7 circumferential inner sun gear 17 and four be uniformly arranged on gear ring 7 and sun gear
Planetary gear 8 between 17, sun gear 17 are hollow step structure, and the leading portion of sun gear 17 is big axle journal section, back segment
For pilot pin section, there are escapes, the pilot pin section of sun gear 17 between leading portion and back segment to be provided with the gear teeth, and big axle journal section is with the sun
Line is uniformly opened there are four threaded hole centered on the axis of rotation of wheel 17, and each planetary gear 8 is nibbled simultaneously with gear ring 7 and sun gear 17
It closes, four planetary gears 8 not only can be around own axes respectively rotation, but also can revolve round the sun around the axis of rotation of sun gear 17.Sun gear
17 are connected by screw with motor output shaft 5, and refering to Fig. 1, nut 10 is hollow stepped revolving meber, before nut 10
Duan Wei great axle journal sections, the back segment of nut 10 is pilot pin section, and the inner cylinder face of nut 10 is machined with arc helicla flute, each planet
Wheel 8 is assembled by the big axle journal section of a planet wheel spindle 9 and nut 10, and the pilot pin section of nut 10 passes through two taper roller axis
Hold and be supported on inside housing 21, No.1 hollow lead screw 11 is hollow cylindrical revolving meber, No.1 hollow lead screw 11 it is outer
Also it is machined with arc helicla flute on cylindrical surface, the arc helicla flute on 11 external cylindrical surface of No.1 hollow lead screw and cylinder in nut 10
Arc helicla flute on face matches, and forms a helical duct, is equipped with multiple spherical balls in the helical duct, No.1 is hollow
Leading screw 11, nut 10 and spherical ball composition ball screw framework.When nut 10 is around its own axis rotation, ball 14 is pushed to exist
It is rolled in helical duct, No.1 hollow lead screw 11 is pushed to be moved along its axial direction.
Refering to Fig. 1 and Fig. 4, No.1 push rod 1 passes through the through-hole at 5 rear portion of motor output shaft, and the rear end of No.1 push rod 1 is connected to
In electric chuck with three jaws 16, No. two push rods 18 are that cross-section is circular straight-bar, and the front end of No. two push rods 18 is connected to electricity
In dynamic scroll chuck 16.
Refering to Fig. 3, Fig. 4 and Fig. 7, the electric chuck with three jaws 16 includes 31, three, electric chuck with three jaws motor uniformly
Claw 32, chuck 33 and the electric chuck with three jaws housing 34 of distribution.It opens at middle part on the front end face of electric chuck with three jaws housing 34
There are one circular through holes.Three centrosymmetric, radially distributed cunnings are provided on the rear end face of electric chuck with three jaws housing 34
Road.Electric chuck with three jaws motor 31 is fixedly mounted in the inside of electric chuck with three jaws housing 34.
Refering to Fig. 3, Fig. 4 and Fig. 5, multiple arcs strip is machined on the front end face of the claw 32, from claw front end
To center position, the radius of curvature of arc strip is gradually reduced the outer rim in face.Arc strip on 32 front end face of claw is installed to
In the slideway of 34 rear end face of electric chuck with three jaws housing, ensure that claw 32 can be along the cunning of 34 rear end face of electric chuck with three jaws housing
It slides in road.The inner side end of claw 32 is cylindrical surface, is machined with different groove on inner side end, can increase inner end
The friction coefficient in face.No.1 push rod 1 and No. two push rods 18 are mounted on the cylindrical channel that three 32 inner side ends of claw are surrounded
It is interior.
Refering to Fig. 3, Fig. 4, Fig. 6 and Fig. 8, the chuck 33 be a hollow collar plate shape part, the rear end face of chuck 33
On be provided with a spiral slide, from the outer rim of 33 rear end face of chuck to center position, the radius of curvature of spiral slide is gradually reduced.
Spiral slide on 33 rear end face of chuck is worked in coordination with the arc strip on 32 front end face of claw, and claw 32 is by front end face
Arc strip be installed in the helical duct on 33 rear end face of chuck, i.e., claw 32 can lead to along the spiral of 33 rear end face of chuck
It slides in road.The front end face of chuck 33 is fixedly connected with electric chuck with three jaws motor 31, i.e., electric chuck with three jaws motor 31 can band
Dynamic chuck 33 rotates at the same speed.
Refering to Fig. 1 and Fig. 2, the rear end of No. two push rods 18 passes through the hollow portion of No.1 hollow lead screw 11, No.1 hollow lead screw
It is provided with groove in an axial direction on 11 rear end face.The power-assisted push rod 20 is a stepped cylindrical revolving body, power-assisted push rod 20
Leading portion for big axle journal section, which is provided with a blind cylindrical hole, blind
Hole is built-in with cylindrical elastic reaction disk 19, and the height of elastic reaction disk 19 is more than the depth of the blind hole of power-assisted push rod 20, helps
The back segment of bar 20 is pushed as pilot pin section, pilot pin section line centered on the axis of rotation of power-assisted push rod 20 opens that there are one screw threads
Hole is provided with external screw thread on piston push rod 12, and the pilot pin section of power-assisted push rod 20 is threadedly coupled with piston push rod 12, power-assisted push rod 20
The intersegmental gap of big axle journal be fitted in the groove on 11 rear end face of No.1 hollow lead screw.
Refering to Fig. 1, a pedal travel sensor 30 is mounted on No.1 push rod 1, for measuring the displacement of No.1 push rod 1
Amount.The pedal travel sensor selects the stroke sensor of MTS-RP series, and shell is aluminium shell molds, and intensity is high, full
Full vehicle use environment.Resolution ratio is 2 μm, and measurement stroke is 25-4975mm, meets real vehicle requirement.
Refering to Fig. 1, a master cylinder 23 is fixed on housing 21, and the piston push rod 12 of master cylinder 23 stretches into the hollow of rear
Part, piston push rod 12 are fixed threaded connection with 20 rear end of power-assisted push rod.
Refering to Fig. 1 and Fig. 6, two inlets of master cylinder 23 are connect with a fluid reservoir 22.One liquid outlet of master cylinder 23
Connect by fluid pressure line with the inlet of a No.1 two-position two-way solenoid valve 26, master cylinder 23 with No.1 bi-bit bi-pass electromagnetism
There are one No.1 pressure sensors 24 for installation on fluid pressure line between valve 26.Another liquid outlet of master cylinder 23 passes through another
Fluid pressure line is connect with the inlet of No. two two-position two-way solenoid valves 27.Master cylinder 23 and No. two two-position two-way solenoid valves 27 it
Between fluid pressure line on installation there are one No. two pressure sensors 25.The No.1 pressure sensor 24 and No. two pressure sensings
Device 25 selects the pressure sensor of KELLER-21Y series, range 0-30MPa, and linear precision is ± 0.25%FS.No.1
The liquid outlet of two-position two-way solenoid valve 26 is connect by fluid pressure line with an inlet of a hydraulic control unit 28, No. two
The liquid outlet of two-position two-way solenoid valve 27 is connect by another fluid pressure line with another inlet of hydraulic control unit 28.
Two two-position two-way solenoid valve model LD8705H normal-open electromagnetic valves, maximum working pressure 250bar, operating voltage are
24VDC.Four liquid outlets of hydraulic control unit 28 pass through fluid pressure line and four on four wheels of vehicle respectively
The inlet connection of disk brake 29.
Refering to Fig. 1, the signal output of pedal travel sensor 30, No.1 pressure sensor 24 and No. two pressure sensors 25
End is connect respectively by data line with the signal input part of the electronic control unit in vehicle, No.1 two-position two-way solenoid valve 26,
No. two two-position two-way solenoid valves 27, hydraulic control unit 28, electric chuck with three jaws motor 31 and the respective signal of double-rotor machine
Receiving terminal is connected respectively by the output terminal of data line and electronic control unit.
A kind of operation principle of electric booster braking system based on double-rotor machine described in the utility model：
1. electric booster braking function：
Electric boosted function be a kind of electric booster braking system based on double-rotor machine described in the utility model most
A basic function.As shown in Figure 1, when driver's brake pedal, No.1 push rod 1 is translatable, and pedal travel passes at this time
Sensor 30 detects the displacement of No.1 push rod 1, and displacement signal is sent to ECU, and ECU will be at displacement signal
Reason, the power-assisted value needed at this time is obtained according to assist characteristic curve, and sends out corresponding control signal, is produced in stator core 3
Raw exciting current, so as to which outer rotor iron core 4 be made to be operated according to instruction, and drives motor output shaft 5, sun gear 17, planetary gear
8th, planet wheel spindle 9, nut 10, No.1 hollow lead screw 11, elastic reaction disk 19, power-assisted push rod 20 and piston push rod 12, thus
Brake fluid pressure is generated in master cylinder 23.Brake fluid in master cylinder 23 passes through brake piping and two two-position two-way solenoid valve influents
Control unit 28 is pressed, is flowed into disk brake 29 using brake piping, establishes brake force.
When system carries out continuous braking, since motor can export stable rotating speed and torque, can obtain good
Good brake feel；In addition, when anti-lock braking system (ABS) starts, the utility model not only can be by adjusting hydraulic pressure
Control unit 28 realizes the adjusting to hydraulic coupling, can also be adjusted by the output speed of regulation motor with torque, so as to
The response time and dynamic for optimizing ABS show.
2. brake feel analog functuion
A kind of electric booster braking system based on double-rotor machine described in the utility model can realize electronic help
Brake feel analog functuion is completed while dynamic braking function.
As shown in Figure 1, when driver's brake pedal, No.1 push rod 1 is translatable, and pedal travel sensor 30 is supervised at this time
The displacement of No.1 push rod 1 is measured, and displacement signal is sent to ECU, ECU handles displacement signal, calculates
Go out needs the power for feeding back to driver at this time, and sends out corresponding control signal, and exciting current is generated in outer rotor core 4,
So as to which internal rotor iron core 14 be made to be operated according to instruction, when internal rotor iron core 14 rotates, No. two hollow lead screws 13 is pushed to be translatable, so as to
No.1 pushrod movement is driven, by the force feedback to brake pedal of simulation, realizes brake feel analog functuion.
3. fail backup functionality
When in a kind of electric booster braking system based on double-rotor machine described in the utility model, being used to implement electronic
When some electric device of assist function is failed due to failure, ECU can by send out relevant control instruction act on it is electronic
Scroll chuck 16 makes electric chuck with three jaws motor start running, and chuck 33 is driven to operate, so as to make three claws 32 in chuck
It is gradually tightened under drive to middle part, No.1 push rod 1 and No. two push rods 18 is made to become fixedly connected part by stiction.In this way,
It, still can be by pushing No.1 push rod 1, No. two push rod 18, elastic reaction disk 19, power-assisted when driver's brake pedal
Push rod 20, piston push rod 12 are applied to master cylinder 23, so as to establish brake fluid pressure in master cylinder 23.
In addition, when two-position two-way solenoid valve fails, power-off opening is still may be at, vehicle can still realize braking
The foundation of hydraulic coupling.
4. active brake function
For being equipped with the vehicle of tachogenerator, distance measuring sensor device, when tachogenerator, distance measuring sensor measure
Learn vehicle with front obstacle apart from too short, it is necessary to brake measure be taken to prevent collision or during other hazardous acts, ECU
Corresponding control instruction can be sent out, exciting current is generated in stator core 3, outer rotor iron core 4 is made to start running, and band
Dynamic motor output shaft 5, sun gear 17, planetary gear 8, planet wheel spindle 9, nut 10, No.1 hollow lead screw 11, elastic reaction disk 19,
Power-assisted push rod 20 and piston push rod 12, so as to generate brake fluid pressure in master cylinder 23.Brake fluid in master cylinder 23 is by braking
Pipeline and two two-position two-way solenoid valves flow into hydraulic control unit 28, are flowed into disk brake 29 using brake piping,
Establish brake force.The system that electronic control unit can be transmitted by reading No.1 pressure sensor 24 and No. two pressure sensors 25
Hydraulic control unit 28 is adjusted in dynamic pressure force signal, does not make brake fluid pressure in four disk brakes 29 of inflow respectively not
It is identical, it realizes and the hydraulic coupling of wheel cylinder in each disk brake 29 is adjusted respectively, realize active brake function.
5. regenerative braking capability
For being equipped with the vehicle of regenerative braking device, when the regenerative braking force that vehicle only needs regenerative braking device to generate comes
When completing braking, a kind of ECU of integrated electric energy assisted braking system described in the utility model sends out corresponding control instruction
Close 26, No. two two-position two-way solenoid valves 27 of No.1 two-position two-way solenoid valve, the brake fluid in master cylinder 23 will not act at this time
In disk brake 29, i.e., conventional braking mode is not involved in braking operation, but regenerative braking device work is relied on to generate vehicle
Brake force needed for.
When vehicle needs larger braking deceleration, if system judgement show that regenerative braking force and friction catch are common
Work is come when meeting requirement of the vehicle to brake force, ECU, which sends out control instruction, makes 2 three-way electromagnetic valve 27, No. two 22 of No.1 2 logical
Solenoid valve 28 is opened, and the brake fluid in master cylinder 23 still can act on disk brake 29 at this time, generates friction brake force.Together
When, regenerative braking device effect generates regenerative braking force, and the two collectively forms automobile braking force.
Claims (4)
1. a kind of electric booster braking system based on double-rotor machine, which is characterized in that including a housing (21), to drive
The direction of member's brake force input is front, and housing (21) is internally provided with a double-rotor machine, and double-rotor machine includes one
Section with stator winding (2) is the stator core (3) of circular ring shape, circular ring shape with outer rotor winding (6) it is outer
Stator core (3), housing (21) is fixedly mounted in rotor core (4) and an internal rotor iron core (14), housing (21) front inner
It is opened in the middle part of front end face there are one circular through hole, the forepart of a cylindrical No.1 push rod (1) passes through housing (21) front end face
Circular through hole, the middle and back of No.1 push rod (1) extend into the inside of housing (21), and the front end of No.1 push rod (1) is stepped on braking
Plate connects, and for inputting the brake force of driver, No. two hollow lead screws (13) are hollow cylindrical type revolving meber, and No.1 pushes away
The hollow space of bar (1) from No. two hollow lead screws (13) passes through, and No. two hollow lead screws (13) and the middle part of No.1 push rod (1) are fixed
It connects, arc helicla flute is machined on the external cylindrical surface of No. two hollow lead screws (13), internal rotor iron core (14) is hollow cylinder
Shape revolving meber is also machined with arc helicla flute, internal rotor iron core (14) inner cylinder face on the inner cylinder face of internal rotor iron core (14)
On arc helicla flute matched with the arc helicla flute on No. two hollow lead screw (13) external cylindrical surfaces, formed a spiral lead to
Road is equipped with multiple spherical balls, No. two hollow lead screws (13), internal rotor iron core (14) and spherical ball composition in the helical duct
No. two ball screw frameworks are installed with internal rotor permanent-magnetic magnet steel (15) on the external cylindrical surface of internal rotor iron core (14), outer to turn
Sub- iron core (4) is arranged between internal rotor permanent-magnetic magnet steel (15) and stator core (3), and outer rotor iron core is installed on (4)
One cylindric motor output shaft (5), the rear portion of motor output shaft (5) open that there are one circular through hole, housings along its axial direction
(21) be internally provided with a planetary gear set, planetary gear set include one be fixed on the internal gear ring (7) of housing (21),
One it is concentric with gear ring (7) and positioned at gear ring (7) circumferential inner sun gear (17) and four intervals be uniformly arranged on gear ring
(7) planetary gear (8) between sun gear (17), each planetary gear (8) while is engaged with gear ring (7) and sun gear (17), too
Sun wheel (17) is connected by screw with motor output shaft (5), and nut (10) is hollow stepped revolving meber, nut (10)
Leading portion for big axle journal section, the back segment of nut (10) is pilot pin section, and the inner cylinder face of nut (10) is machined with arc helicla flute,
Each planetary gear (8) is assembled by the big axle journal section of a planet wheel spindle (9) and nut (10), and the pilot pin section of nut (10) is led to
It crosses two taper roll bearings and is supported on housing (21) inside, a No.1 hollow lead screw (11) is hollow cylindrical revolution
Part, is also machined with arc helicla flute on the external cylindrical surface of No.1 hollow lead screw (11), on No.1 hollow lead screw (11) external cylindrical surface
Arc helicla flute matched with the arc helicla flute on nut (10) inner cylinder face, form a helical duct, which leads to
Multiple spherical balls are equipped in road, No.1 hollow lead screw (11), nut (10) and spherical ball form No.1 ball screw framework,
No.1 push rod (1) across motor output shaft (5) rear portion circular through hole, the rear end of No.1 push rod (1) even extend into one it is electronic
In scroll chuck (16), the rear end face of No.1 push rod (1) is located at after the front end face of claw (32) of electric chuck with three jaws (16),
One No. two push rod (18) is that section is circular straight-bar, and the front end of No. two push rods (18) is connected to electric chuck with three jaws (16)
In, the front end face of No. two push rods (18) is located at before the rear end face of claw (32), and the rear end of No. two push rods (18) passes through No.1 empty
The hollow portion of heart leading screw (11) is provided with groove, a power-assisted push rod (20) on the rear end face of No.1 hollow lead screw (11) in an axial direction
For stair-stepping cylindrical revolving body, the leading portion of power-assisted push rod (20) is big axle journal section, the big axle journal section of power-assisted push rod (20) with
Line is provided with a blind cylindrical hole centered on the axis of rotation of power-assisted push rod (20), and blind hole is built-in with cylindrical elastic reaction disk
(19), the height of elastic reaction disk (19) is more than the depth of the blind hole of power-assisted push rod (20), and the back segment of power-assisted push rod (20) is small
Axle journal section, the pilot pin section of power-assisted push rod (20) line centered on the axis of rotation of power-assisted push rod (20) are opened there are one threaded hole,
The intersegmental gap of big axle journal of power-assisted push rod (20) is fitted in the groove on No.1 hollow lead screw (11) rear end face, a pedal
Stroke sensor (30) is on No.1 push rod (1), and for measuring the displacement of No.1 push rod (1), a master cylinder (23) is solid
It is scheduled on housing (21), the piston push rod of master cylinder (23) stretches into the hollow space of rear, is provided on piston push rod (12) outer
Screw thread, the pilot pin section of power-assisted push rod (20) are threadedly coupled with piston push rod (12), two inlets of master cylinder (23) and one
Fluid reservoir (22) connects, and a liquid outlet of master cylinder (23) passes through fluid pressure line and No.1 two-position two-way solenoid valve (26)
Inlet connects, and there are one No.1 pressure for installation on the fluid pressure line between master cylinder (23) and No.1 two-position two-way solenoid valve (26)
Sensor (24), another liquid outlet of master cylinder (26) by fluid pressure line and No. two two-position two-way solenoid valve (27) into
Liquid mouth connects, and there are one No. two pressure biographies for installation on the fluid pressure line between master cylinder (26) and No. two two-position two-way solenoid valves (27)
Sensor (25), the liquid outlet of No.1 two-position two-way solenoid valve (26) pass through fluid pressure line and a hydraulic control unit (28) one
The connection of a inlet, the liquid outlets of No. two two-position two-way solenoid valves (27) are another by fluid pressure line and hydraulic control unit (28)
One inlet connection, four liquid outlets of hydraulic control unit (28) are respectively by fluid pressure line with being mounted on four vehicles of vehicle
Four disk brakes (29) on wheel inlet connection, pedal travel sensor (30), No.1 pressure sensor (24) and
The signal output end of No. two pressure sensors (25) is inputted respectively by the signal of the electronic control unit in data line and vehicle
End connection, No.1 two-position two-way solenoid valve (26), No. two two-position two-way solenoid valves (27), hydraulic control unit (28), electronic three
Dog chuck (16) and the respective signal receiving end of double-rotor machine are connected respectively by the output terminal of data line and electronic control unit
It connects.
2. a kind of electric booster braking system based on double-rotor machine according to claim 1, which is characterized in that described
Electric chuck with three jaws (16) include electric chuck with three jaws housing (34), electric chuck with three jaws motor (31), chuck (33) and three
A equally distributed claw (32), the front end face of electric chuck with three jaws housing (34) and the middle part of rear end face respectively open that there are one round
Through-hole, be provided on the rear end face of electric chuck with three jaws housing (34) three it is centrosymmetric, along electric chuck with three jaws housing (34)
Radially-arranged slideway, electric chuck with three jaws motor (31) is fixedly mounted in the inside of electric chuck with three jaws housing (34), described
Multiple arcs strip is machined on the front end face of claw (32), from the outer rim of claw (32) front end face to center position, arc is long
The radius of curvature of item is gradually reduced, and the arc strip on claw (32) front end face is installed to electric chuck with three jaws housing (34) rear end
In the slideway in face, ensure that claw (32) can be slided along the radial direction slideway of electric chuck with three jaws housing (34) rear end face, claw
(32) inner side end is cylindrical surface, and different groove is machined on the inner side end of claw (32), can increase inside
The circle that the friction coefficient of end face, No.1 push rod (1) and No. two push rods (18) are surrounded mounted on three claw (32) inner side ends
In cylindrical passageway, the chuck (33) is a hollow collar plate shape part, and a spiral is provided on the rear end face of chuck (33)
Slideway, from the outer rim of chuck (33) rear end face to center, the radius of curvature of spiral slide is gradually reduced, on chuck (33) rear end face
Spiral slide work in coordination with the arc strip on claw (32) front end face, claw (32) passes through the arc strip on front end face
It is installed in the helical duct on chuck (33) rear end face, i.e., claw (32) can be slided along the helical duct of chuck (33) rear end face
Dynamic, the front end face of chuck (33) is fixedly connected with electric chuck with three jaws motor (31), i.e. electric chuck with three jaws motor (31) can be with
Chuck (33) is driven to rotate at the same speed, the signal receiving end of electric chuck with three jaws motor (31) passes through data line and electronic control unit
Output terminal connection.
3. a kind of electric booster braking system based on double-rotor machine according to claim 1, which is characterized in that described
Motor output shaft (5) rear end face on uniformly open there are four threaded hole, the sun gear (17) is hollow stepped
Structure, the leading portion of sun gear (17) are big axle journal section, and the back segment of sun gear (17) is pilot pin section, the leading portion of sun gear (17) and
There are escapes, the pilot pin section of sun gear (17) between back segment to be provided with the gear teeth, and the big axle journal section of sun gear (17) is with sun gear
(17) line is uniformly opened there are four threaded hole centered on axis of rotation, and sun gear (17) passes through screw with motor output shaft (5)
Connection.
4. a kind of electric booster braking system based on double-rotor machine according to claim 1, which is characterized in that described
Housing (21) for stepped revolving meber, the forepart of housing (21) is big radius of gyration section, and the back segment of housing (21) is small revolution
Radius section, nut (10) are supported on by two taper roll bearings on the small swing radius section inner wall of housing (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721619200.0U CN207466635U (en) | 2017-11-29 | 2017-11-29 | A kind of electric booster braking system based on double-rotor machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721619200.0U CN207466635U (en) | 2017-11-29 | 2017-11-29 | A kind of electric booster braking system based on double-rotor machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207466635U true CN207466635U (en) | 2018-06-08 |
Family
ID=62259954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721619200.0U Withdrawn - After Issue CN207466635U (en) | 2017-11-29 | 2017-11-29 | A kind of electric booster braking system based on double-rotor machine |
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| Country | Link |
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| CN (1) | CN207466635U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107826097A (en) * | 2017-11-29 | 2018-03-23 | 吉林大学 | A kind of electric booster braking system based on double-rotor machine |
| CN110254197A (en) * | 2019-05-17 | 2019-09-20 | 北京理工大学 | A kind of double-motor driving device and driving method of disc type electromechanical brake |
-
2017
- 2017-11-29 CN CN201721619200.0U patent/CN207466635U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107826097A (en) * | 2017-11-29 | 2018-03-23 | 吉林大学 | A kind of electric booster braking system based on double-rotor machine |
| CN110254197A (en) * | 2019-05-17 | 2019-09-20 | 北京理工大学 | A kind of double-motor driving device and driving method of disc type electromechanical brake |
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Granted publication date: 20180608 Effective date of abandoning: 20190205 |