CN106915343A - Integrated secondary master cylinder line traffic control brake fluid system - Google Patents

Integrated secondary master cylinder line traffic control brake fluid system Download PDF

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Publication number
CN106915343A
CN106915343A CN201710242056.1A CN201710242056A CN106915343A CN 106915343 A CN106915343 A CN 106915343A CN 201710242056 A CN201710242056 A CN 201710242056A CN 106915343 A CN106915343 A CN 106915343A
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CN
China
Prior art keywords
master cylinder
braking
cylinder
solenoid valve
secondary master
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Application number
CN201710242056.1A
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Chinese (zh)
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CN106915343B (en
Inventor
李静
王晨
孙禄
刘鹏
夏承贺
韩紫云
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Jilin University
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Jilin University
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Publication of CN106915343A publication Critical patent/CN106915343A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—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
    • 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
    • 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
    • B60T2270/00—Further aspects of brake control systems not otherwise provided for
    • B60T2270/82—Brake-by-Wire, EHB

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)
  • Braking Systems And Boosters (AREA)

Abstract

The invention discloses the integrated secondary master cylinder line traffic control brake fluid system of one kind, to overcome, integrated level is relatively low, motor foundation brake pressure is relatively slow, the larger problem poor with pressure precision is built of brake pressure fluctuation, and it includes brake actuating unit, master cylinder, brakes secondary master cylinder unit, electromagnetic valve unit；The secondary master cylinder unit of braking includes motor and the secondary master cylinder of braking；Electromagnetic valve unit includes the first two-bit triplet magnetic valve, the second two-bit triplet magnetic valve, the 5th normally open solenoid valve, the second normally closed solenoid valve and the 3rd normally closed solenoid valve；Brake actuating unit is connected using input push rod therein with the master cylinder first piston of master cylinder；Master cylinder is connected by the 5th normally open solenoid valve with electromagnetic valve unit pipeline；The secondary master cylinder of braking is connected by the first two-bit triplet magnetic valve, the second two-bit triplet magnetic valve, the second normally closed solenoid valve with the 3rd normally closed solenoid valve and electromagnetic valve unit pipeline；Motor and the secondary master cylinder of braking are solidly connected by output shaft therein with secondary master cylinder first piston.

Description

Integrated secondary master cylinder line traffic control brake fluid system
Technical field
The present invention relates to a kind of brake fluid system, it more particularly relates to a kind of integrated secondary master cylinder line traffic control liquid Pressure brakes.
Background technology
With the development of technology, automobile has become the vehicles that it is essential that people go on a journey.Automobile industry it is flourishing Development so that people increasingly pay close attention to the security of automobile.The brakes of automobile is used as the important composition portion in automobile chassis Point, and the good braking ability of automobile is to realize automotive safety necessary condition, so people are carried out to brake system of car In-depth study and exploration.With developing rapidly for automotive electronic technology, the maturation of control technology causes that people have to braking Expectation higher.
The brakes of orthodox car would generally be using devices such as vacuum boosters, and it is typically by control boost pump Vacuum state, diaphragm in vacuum booster is produced movement, and one is provided using iris action power by transmission device Brake pedal force during partial brake, thus amplifies the pedal force of driver, and to save the muscle power of driver, but it is aobvious The shortcoming of work is that volume is excessively huge and structure is complex, so having eliminated this kind on most of automobiles at present with true The brake structure of empty booster.And the volume of vacuum booster causes greatly the arrangement of brakes more difficult, it is unfavorable for system Dynamic system it is integrated.In order to meet the current demand integrated to brakes, traditional hydraulic braking can not meet The demand of people, line traffic control hydraulic braking product arises at the historic moment.
Currently, brake-by-wire configuration widely, though volume and vacuum shared by most of existing line control brake systems Boosting mechanism is compared and reduced, but its is integrated still smaller, and the shared volume in automobile arrangement is still very big, and mesh Preceding line control brake system builds that the pressure time is relatively slow and to build pressure precision still poor.As Chinese patent bulletin (cloth) number is CN201510742890, bulletin (cloth) day is on November 04th, 2015, entitled collection master cylinder brake-by-wire in pairs, its technology Double master cylinder cooperations are employed in scheme and realizes braking.Piston is pushed directly on using motor in the configuration and produces brake pressure, Multiple plunger displacement pumps and high pressure accumulator are eliminated, manufacturing cost is reduced to a certain extent.Meanwhile, double master cylinders can ensure in electricity During road is failed, there is provided certain brake pressure, security, the reliability of brakes are improved.But, electricity in the configuration The brake pressure that machine is set up is relatively slow, and brake pressure fluctuation is larger, builds and presses precision poor, meanwhile, the integrated level phase of system To relatively low, the space of arrangement is increased.
The content of the invention
The technical problems to be solved by the invention be overcome prior art presence integrated level is relatively low, motor is set up Brake pressure is relatively slow, the larger problem poor with pressure precision is built of brake pressure fluctuation, there is provided it is a kind of integrated secondary main Cylinder line traffic control brake fluid system.
In order to solve the above technical problems, the present invention adopts the following technical scheme that realization：Described integrated secondary master cylinder line Control brake fluid system includes electronic control unit, brake actuating unit, master cylinder, the secondary master cylinder unit of braking, magnetic valve list Unit and brake；
Described braking pair master cylinder unit includes motor and the secondary master cylinder of braking；
Described electromagnetic valve unit includes the first two-bit triplet magnetic valve, the second two-bit triplet magnetic valve, the 5th normally opened electricity Magnet valve, the second normally closed solenoid valve and the 3rd normally closed solenoid valve；
Described brake actuating unit is connected by input push rod therein with the master cylinder first piston in master cylinder；System Dynamic master cylinder is connected by the 5th normally open solenoid valve with electromagnetic valve unit pipeline；The secondary master cylinder of braking passes through the first two-bit triplet electromagnetism Valve, the second two-bit triplet magnetic valve, the second normally closed solenoid valve are connected with the 3rd normally closed solenoid valve and electromagnetic valve unit pipeline；Motor It is fixedly connected with secondary master cylinder first piston by output shaft therein with the secondary master cylinder of braking；Electronic control unit and brake actuating list Unit, the secondary master cylinder unit of braking are connected with electromagnetic valve unit electric wire.
Described in technical scheme braking pair master cylinder by the first two-bit triplet magnetic valve, the second two-bit triplet magnetic valve, Second normally closed solenoid valve is connected and refers to the 3rd normally closed solenoid valve and electromagnetic valve unit pipeline：
Braking pair master cylinder first oil-out on the secondary master cylinder of described braking is using brake piping and the second two-bit triplet electricity B mouthfuls of magnet valve is connected, and braking pair master cylinder second oil-out of the secondary master cylinder of braking is using brake piping and the first two-bit triplet electricity B mouthfuls of connection of magnet valve；The secondary oil inlet of master cylinder first of braking of the secondary master cylinder of braking is using brake piping and one end of the second normally close valve It is connected；The secondary oil inlet of master cylinder second of braking of the secondary master cylinder of braking is connected using brake piping with one end of the 3rd normally close valve.
Master cylinder described in technical scheme includes master cylinder second spring, master cylinder second piston, the spring of master cylinder first, master Cylinder first piston and master cylinder body；Described master cylinder body includes cylinder body and cylinder cap, and cylinder body shuts right-end openings for left end Core structure part, be provided with a master cylinder oil-out on the left end casing wall of cylinder body, be provided with the right-hand member cylinder mouthful of cylinder body Ring flange, is equably provided with the flange bolt through hole of installation bolt, cylinder cap disc-like structural member, the center of cylinder cap on ring flange Place is provided with the push rod through hole for installing input push rod, and the cylinder cap through hole of installation bolt is equably provided with around push rod through hole, Flange bolt through hole is relative with cylinder cap through hole just, and cylinder cap is used and is bolted on the ring flange of cylinder body right-hand member；Described master cylinder First spring is a groups of springs, and the groups of springs is by No. 1 spring of three different lengths and diameter, No. 2 springs and No. 3 groups of springs Into No. 1 spring, No. 2 springs are set in together with No. 3 springs；Described master cylinder second spring, master cylinder second piston, master cylinder One spring and master cylinder first piston are sequentially arranged in master cylinder body from left to right, master cylinder second spring, master cylinder second piston, The rotation conllinear of the spring of master cylinder first and master cylinder first piston, master cylinder second spring, master cylinder second piston, the bullet of master cylinder first To be fixedly connected between spring and master cylinder first piston, the company of fixation at the left end wall medial center of master cylinder second spring left end and cylinder body Connect.
Motor described in technical scheme includes that stator, rotor, electric machine controller, output shaft, six structure identicals are passed Moving axis and electric machine casing；Described stator is arranged in the central through hole of electric machine casing to be fixedly connected, stator and electric machine casing Central through hole rotation conllinear, rotor is arranged in stator, has gap between rotor and stator, rotor and stator Rotation conllinear, output shaft is arranged in rotor, and the two ends of output shaft are arranged on the left and right flange of electric machine casing by bearing Cover, the rotation conllinear of output shaft and rotor, six structure identical power transmission shafts are installed between output shafts and rotor, six Structure identical power transmission shaft is uniformly distributed in around power transmission shaft, is screw thread between rotor and six structure identical power transmission shafts Connection, is to be threadedly coupled between six structure identical power transmission shafts and output shaft.
The rotor of the motor described in technical scheme is circular ring structure part, and interior spiral shell is provided with the inwall of the rotor of motor Line；Each power transmission shaft is respectively provided with external screw thread in six structure identical power transmission shafts, and screw thread tooth form and pitch all same, six Individual structure identical power transmission shaft has identical length and diameter, the external screw thread tooth on six structure identical power transmission shafts of motor Type is identical with the internal thread of pitch and rotor, rotor and six structure identical power transmission shaft internal messings and form the first screw thread pair； The outside of the output shaft of motor is provided with external screw thread, the external screw thread tooth form on six structure identical power transmission shafts and pitch and output External screw thread outside axle is identical, output shaft and six structure identical power transmission shaft external toothings around it and form the second screw thread It is secondary.
Braking pair master cylinder described in technical scheme includes secondary master cylinder second spring, secondary master cylinder second piston, secondary master cylinder the One spring, secondary master cylinder first piston and the secondary Master cylinder body of braking；Described secondary master cylinder second spring, secondary master cylinder second piston, secondary master The spring of cylinder first is sequentially loaded into the secondary Master cylinder body of braking from left to right with secondary master cylinder first piston, secondary master cylinder second piston and secondary master To be slidably connected between cylinder first piston and the secondary Master cylinder body inwall of braking, secondary master cylinder second spring, secondary master cylinder second piston, pair are main The rotation conllinear of the spring of cylinder first and secondary master cylinder first piston；The left end of secondary master cylinder second spring is left with the secondary Master cylinder body of braking Center on the inside of end wall is to be welded to connect, the center of the right-hand member of secondary master cylinder second spring and secondary master cylinder second piston left side It is welded to connect, the center of secondary master cylinder second piston right side is fixedly connected with the left end of the secondary spring of master cylinder first, secondary master cylinder the The right-hand member of one spring is fixedly connected with the left side center of secondary master cylinder first piston；The secondary Master cylinder body of braking is lived by secondary master cylinder second Inner chamber is divided into I chamber and II chamber from left to right with secondary master cylinder first piston for plug.
It is columnar structured part that secondary Master cylinder body is braked described in technical scheme, and the secondary Master cylinder body of braking is by cylinder bottom, casing wall and cylinder Mouth wall composition；Cylinder bottom is connected with casing wall, and cylinder mouthful ring flange is provided with casing wall right-hand member cylinder mouthful, is uniformly set on cylinder mouthful ring flange The flange bolt hole of installation bolt is equipped with, the internal diameter of casing wall and secondary master cylinder second piston are identical with secondary master cylinder first piston diameter； The center of cylinder mouthful wall is provided with central through hole, the output shaft equal diameters in the diameter and motor of central through hole, central through hole Around be provided with the cylinder mouthful wall through hole of installation bolt, cylinder mouthful wall using being bolted on the cylinder of casing wall right-hand member mouthful ring flange, The rotation conllinear of cylinder bottom, casing wall and cylinder mouthful wall；Two oil inlets are provided with the secondary Master cylinder body of braking and brakes pair master cylinder the One oil inlet is the secondary oil-out of master cylinder first of braking and the secondary master cylinder of braking with the secondary oil inlet of master cylinder second of braking and two oil-outs Second oil-out；The secondary oil inlet of master cylinder first of braking is located on the casing wall in II chamber of the secondary Master cylinder body of braking, and with the secondary master cylinder of braking II chamber of body is connected, and the secondary oil inlet of master cylinder second of braking is located on the casing wall in I chamber of the secondary Master cylinder body of braking, and secondary with braking main I chamber of cylinder is connected；The secondary oil-out of master cylinder first of braking is located on the casing wall in II chamber of the secondary master cylinder of braking, and with the secondary master cylinder of braking II chamber of body is connected, and the secondary oil-out of master cylinder second of braking is located on the casing wall in the secondary chamber of Master cylinder body I of braking, and with the secondary master cylinder of braking I chamber of body is connected.
Electromagnetic valve unit described in technical scheme also includes the first normally closed solenoid valve, the first normally open solenoid valve, second normal Open electromagnetic valve, the 3rd normally open solenoid valve, the 4th normally open solenoid valve, first pressure sensor and second pressure sensor；Described Brake includes the first wheel cylinder, the second wheel cylinder, third round cylinder and fourth round cylinder；The other end of the 5th described normally open solenoid valve is adopted With A mouthfuls, A mouthfuls of the second two-bit triplet magnetic valve of brake piping and the first two-bit triplet magnetic valve and normally closed solenoid valve (11) One end is connected, and the other end of normally closed solenoid valve is connected with oil can, and P mouthfuls of the first two-bit triplet magnetic valve uses brake piping It is connected with one end of the second normally open solenoid valve with first pressure sensor, the first normally open solenoid valve；Second two-bit triplet electromagnetism P mouthfuls of valve is connected using brake piping and second pressure sensor, the 3rd normally open solenoid valve with the 4th normally open solenoid valve；First The other end of normally open solenoid valve is connected using brake piping with the first wheel cylinder, and the other end of the second normally open solenoid valve is using braking Pipeline is connected with the second wheel cylinder, and the other end of the 3rd normally open solenoid valve is connected using brake piping with third round cylinder, and the 4th The other end of normally open solenoid valve is connected using brake piping with fourth round cylinder；One end of second normally close valve is connected with oil can, the One end of three normally close valves is connected with oil can (10).
The secondary master cylinder unit of electronic control unit and brake actuating unit, braking and electromagnetic valve unit described in technical scheme Electric wire is connected：Terminals on described electronic control unit respectively with pedal displacement sensor, first pressure sensor, Terminals electric wire connection on second pressure sensor, solenoid valve controller, electric machine controller；On described solenoid valve controller Terminals respectively with the first normally closed solenoid valve, the first two-bit triplet magnetic valve, the second two-bit triplet magnetic valve, the 5th normally opened electricity It is magnet valve, the first normally open solenoid valve, the second normally open solenoid valve, the normally open solenoid valve of the 3rd normally open solenoid valve (26) the 4th, second normally closed Magnetic valve is connected with the terminals electric wire of electromagnet in the valve of the 3rd normally closed solenoid valve.
Compared with prior art the beneficial effects of the invention are as follows：
1. integrated level is high
From structure analyze, integrated secondary master cylinder line traffic control brake fluid system of the present invention by magnetic valve, master cylinder, Driving pair master cylinder is individually integrated into electromagnetic valve unit, integrated master cylinder unit, integrated secondary master cylinder unit, and integrated master cylinder unit has good Good pedal sense, integrated secondary master cylinder unit is integrated with secondary master cylinder by motor；
2. respond rapid
Analyzed from structure, integrated secondary master cylinder line traffic control brake fluid system of the present invention can turning rotor It is dynamic that output shaft is applied directly to by power transmission shaft, and then secondary master cylinder piston is promoted, complete the rapid of brakes and build pressure；
3. small in volume is convenient with arrangement
Analyzed from structure, integrated secondary master cylinder line traffic control brake fluid system of the present invention is by motor, pedal sense mould Intend the brakes core components such as device integrated, take up room smaller, facilitate brakes to arrange, alleviate brakes Weight.
4. the integrated secondary master cylinder line traffic control brake fluid system described in disclosure satisfy that existing conventional brake, ABS, ESP etc. are more The brake request under operating mode is planted, its range of application is relatively broad, and prospect is preferable.
5. the integrated secondary master cylinder line traffic control brake fluid system described in is remained to by the system of trampling when brakes power-off failure Dynamic pedal realizes brake hard, and the stability of its brakes is preferable.
6. the integrated secondary master cylinder line traffic control brake fluid system described in is in master cylinder by using three springs of different length The master cylinder spring of composition, can realize more good pedal sense simulation, and it is anti-that it can bring the preferable pedal sense of driver Feedback.
7. integrated secondary master cylinder line traffic control brake fluid system of the present invention can realize master cylinder in normal brake application With the full decoupling of wheel cylinder, larger impact in braking procedure can be avoided from being transferred to brake pedal, driver can be avoided Intense strain and obtain comfortable driving experience.
Brief description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings：
Fig. 1 integrated secondary master cylinder line traffic control brake fluid system structure composition block diagrams of the present invention；
Fig. 2 integrated secondary master cylinder line traffic control brake fluid system structure composition schematic diagrams of the present invention；
The profile of the motor employed in Fig. 3 integrated secondary master cylinder line traffic control brake fluid systems of the present invention；
First two-position three-way valve interface diagram in Fig. 4 a integrated secondary master cylinder line traffic control brake fluid systems of the present invention；
Second two-position three-way valve interface diagram in Fig. 4 b integrated secondary master cylinder line traffic control brake fluid systems of the present invention；
The sectional view of the motor employed in Fig. 4 c integrated secondary master cylinder line traffic control brake fluid systems of the present invention；
Fig. 5 integrated secondary master cylinder line traffic control brake fluid system conventional brakes of the present invention are pressurized the structural principle of operating mode Figure；
The structural principle of Fig. 6 integrated secondary master cylinder line traffic control brake fluid system conventional brake decompression operating modes of the present invention Figure；
Fig. 7 integrated secondary master cylinder line traffic control brake fluid system abs brakings of the present invention are pressurized the structure principle chart of operating mode；
The structure principle chart of Fig. 8 integrated secondary master cylinder line traffic control brake fluid system abs braking decompression operating modes of the present invention；
The structure principle chart of Fig. 9 integrated secondary master cylinder line traffic control brake fluid system abs braking pressurize operating modes of the present invention；
The supercharging of first wheel cylinder, the 4th when Figure 10 integrated secondary master cylinder line traffic control brake fluid system ESP of the present invention are braked Wheel cylinder is pressurized the structure principle chart of operating mode；
First wheel cylinder pressurize, the 4th when Figure 11 integrated secondary master cylinder line traffic control brake fluid system ESP of the present invention are braked Wheel cylinder is pressurized the structure principle chart of operating mode；
First wheel cylinder pressurize, the 4th when Figure 12 integrated secondary master cylinder line traffic control brake fluid system ESP of the present invention are braked The structure principle chart of wheel cylinder pressurize operating mode；
First wheel cylinder pressurize, the 4th when Figure 13 integrated secondary master cylinder line traffic control brake fluid system ESP of the present invention are braked The structure principle chart of wheel cylinder decompression operating mode；
The decompression of first wheel cylinder, the 4th when Figure 14 integrated secondary master cylinder line traffic control brake fluid system ESP of the present invention are braked The structure principle chart of wheel cylinder decompression operating mode；
The structural principle of Figure 15 integrated secondary master cylinder line traffic control brake fluid system failure braking supercharging operating modes of the present invention Figure；
The structural principle of Figure 16 integrated secondary master cylinder line traffic control brake fluid system failure braking compression release operating modes of the present invention Figure；
In figure：1. brake pedal, 2. pedal displacement sensor, 3. master cylinder, the 4. spring of master cylinder first, 5. output shaft, 6. power transmission shaft, 7. rotor, 8. stator, 9. brakes secondary master cylinder, 10. oil can, 11. first normally closed solenoid valves, 12. first two-bit triplets Magnetic valve, 13. secondary master cylinder second springs, 14. secondary master cylinder second pistons, the 15. secondary springs of master cylinder first, 16. secondary master cylinders first are lived Plug, 17. second two-bit triplet magnetic valves, 18. the 5th normally open solenoid valves, 19. master cylinder second springs, 20. master cylinder second pistons, 21. master cylinder first pistons, 22. input push rods, 23. first pressure sensors, 24. first normally open solenoid valves, 25. second normally opened electricity Magnet valve, 26. the 3rd normally open solenoid valves, 27. the 4th normally open solenoid valves, 28. second pressure sensors, 29. first wheel cylinders, 30. Two wheel cylinders, 31. third round cylinders, 32. fourth round cylinders, 33. second normally closed solenoid valves, 34. the 3rd normally closed solenoid valves, 35. brakings are secondary The oil inlet of master cylinder first, the secondary oil inlet of master cylinder second of 36. brakings, the secondary oil-out of master cylinder first of 37. brakings, the secondary master cylinder of 38. brakings Second oil-out, 39. master cylinder oil-outs, 40. electronic control units (ECU), 41. solenoid valve controllers, 42. motor controls Device, 43. motor casings, the secondary chamber of master cylinder the Ith of I, brakings；The secondary chamber of master cylinder the IIth of II, brakings.
Specific embodiment
The present invention is explained in detail below in conjunction with the accompanying drawings：
Refering to Fig. 1, the present invention includes brake actuating unit, master cylinder 3, the secondary master cylinder unit of braking, electromagnetic valve unit, electricity Sub-control unit and brake.
Refering to Fig. 2, described brake actuating unit includes brake pedal 1, pedal displacement sensor 2, input push rod 22.
Described pedal displacement sensor 2 can select potentiometric displacement transducer or Hall displacement transducer.
Described brake pedal 1 is connected with the right-hand member of input push rod 22 using bearing pin, enables input push rod 22 with system Move the rotation of pedal 1 and move.The company of being threadably secured of master cylinder first piston 21 in input push rod 22 and master cylinder unit Connect.
Described pedal displacement sensor 2 is connected through a screw thread and is fixedly mounted on input push rod 22, pedal displacement sensing The function of device 2 is the displacement of monitoring input push rod 22.
Described master cylinder 3 includes master cylinder first piston 21, master cylinder second piston 20, master cylinder the first spring 4, master cylinder the Two springs 19 and master cylinder body.
Described master cylinder second spring (19), master cylinder second piston (20), the spring of master cylinder first (4) and master cylinder first piston (21) it is sequentially arranged at from left to right in master cylinder body, master cylinder second spring (19), master cylinder second piston (20), master cylinder first The rotation conllinear of spring (4) and master cylinder first piston (21), master cylinder second spring (19), master cylinder second piston (20), master It is to be fixedly connected between the spring of cylinder first (4) and master cylinder first piston (21).
Refering to Fig. 2, described master cylinder body includes cylinder body and cylinder cap, and cylinder body shuts the cartridge type knot of right-end openings for left end Component, is provided with a master cylinder oil-out 39 on the left end casing wall of cylinder body, ring flange is provided with the right-hand member cylinder mouthful of cylinder body, Plane where ring flange is vertical with the axis of rotation of cylinder body, and the right side of ring flange is coplanar with cylinder body right side, on ring flange The flange bolt through hole of installation bolt is provided with evenly, and cylinder cap disc-like structural member, the center of cylinder cap is provided with installation input The push rod through hole of push rod 22, is equably provided with the cylinder cap through hole of installation bolt around push rod through hole, flange bolt through hole with Relatively just, cylinder cap is used and is bolted on the ring flange of cylinder body right-hand member cylinder cap through hole.
Described the first spring of master cylinder 4 is a groups of springs, and the groups of springs is by three different lengths and the groups of springs of diameter Overlapped into the axis of, three springs of different length in arrangement, wherein in its diameter of spring most long it is maximum, and positioned at three Outermost on bar spring circumferencial direction；Moderate-length spring its diameter is placed in the middle, and be located in a circumferential direction spring most long with Between most short spring；Most short its diameter of spring is minimum, and the most inner side on three spring circumferencial directions；Three different lengths Spring rate selected according to the pedal sense to be set, so as to enable a driver to realize pedal sense more true to nature Feel；The wherein three respective length of the spring of different length reach certain displacement amount by the brake pedal 1 under driver's control The pedal force that required correspondence is produced is felt to calculate, so that described brake pedal 1 is produced in different manipulation of driver During different displacements, different pedal senses can be produced.
The center of the described right side of master cylinder first piston 21 is connected through a screw thread mutually solid with the left end of input push rod 22 Even, the right-hand member of the spring most long in the center of the left side of master cylinder first piston 21 and the first spring of master cylinder 4 is solid by welding Even.Center of the left end of all springs in the first spring of master cylinder 4 with the right side of master cylinder second piston 20 is solid by welding Even.The left side center of master cylinder second piston 20 is connected with the right-hand member of master cylinder second spring 19 by welding, the bullet of master cylinder second The left end of spring 19 is connected with the left cylinder wall inner side of master cylinder body by welding.
That is by brake piping and the one of normally closed solenoid valve 11 at the oil-out of master cylinder body of described master cylinder 3 End interface is connected.
Described braking pair master cylinder unit includes motor and the secondary master cylinder 9 of braking.
Described motor include stator 8, rotor 7, electric machine controller, 5, six structure identical power transmission shafts 6 of output shaft with Electric machine casing；Wherein：Six structure identical power transmission shafts 6 are non-standard component.
Stator 8 in described motor is remained stationary when motor works, and its effect is the magnetic field for producing change, is made Stator 7 in stator 8 is rotated, to provide the power needed for promoting the secondary inner carrier of master cylinder 9 movement of braking.
The rotor 7 of described motor is annulus bodily form structural member, and internal thread is provided with the inwall of the rotor 7 of motor.Electricity The rotor 7 of machine is installed in stator 8, and rotor 7 and the axis of stator 8 are same axis.The rotor 7 of motor and stator 8 it Between leave a certain amount of gap, with ensure rotor 7 when rotated will not with fixed stator 8 produce movement interference.
Six structure identical power transmission shafts 6 in described motor are located between rotor 7 and power transmission shaft 5, and six transmissions Axle 6 is arranged symmetrically on the circumferencial direction of output shaft 5, and angle between any two power transmission shaft 6 is 60 °.
Each power transmission shaft 6 is respectively provided with external screw thread in six power transmission shafts 6 in described motor, and screw thread tooth form and pitch All same.Six described power transmission shafts 6 have identical length and diameter.The external screw thread tooth on six power transmission shafts 6 in motor Type is identical with the internal thread inside rotor 7 with pitch, the external thread rotary on six power transmission shafts 6 to rotor 7 inside internal thread It is oppositely oriented, so that the internal messing of power transmission shaft 6 of six that described rotor 7 can be internal with it, so as to form the first screw thread It is secondary.
The outside of output shaft 5 in described motor has external screw thread.
External screw thread phase outside external screw thread tooth form on six power transmission shafts 6 in described motor and pitch and output shaft 5 Together, so that output shaft 5 can with the external toothing of power transmission shaft 6 of six around it, external thread rotary on six power transmission shafts 6 to External thread rotary outside output shaft 5 to identical, so as to form the second screw thread pair.
Described electric machine controller 42 uses integrated circuit form, electric machine controller 42 to correspond to terminals thereon with motor The respective terminal of stator 8 is connected.
Described electric machine controller 42 can be by the form control motor rotation of electric signal.When motor works, rotor 7 Under the magnetic fields of stator 8, rotor 7 can be made to be rotated according to the direction of motor controller controls, now, due to six power transmission shafts The effect of 6 the first screw thread pairs constituted with rotor 7, six power transmission shafts 6 can be rotated, due to six power transmission shafts 6 and output shaft 5 The effect of the second screw thread pair of composition, six power transmission shafts 6 can drive output shaft 5 to produce axial displacement.So, when motor is normal During work, motor promotes the right side of the secondary master cylinder first piston 16 of the secondary master cylinder 9 of braking to set up braking system by the output shaft 5 in it The pressure of system.
Described braking pair master cylinder 9 includes secondary master cylinder first piston 16, secondary master cylinder second piston 14, the secondary spring of master cylinder first 15th, secondary master cylinder second spring 13 and the secondary Master cylinder body of braking.
Described secondary master cylinder second spring 13, secondary master cylinder second piston 14, the first spring of secondary master cylinder 15 and secondary master cylinder first Piston 16 is sequentially loaded into the secondary Master cylinder body of braking from left to right, secondary master cylinder second piston 14 and secondary master cylinder first piston 16 and braking To be slidably connected between secondary Master cylinder body inwall, secondary master cylinder second spring 13, secondary master cylinder second piston 14, the first spring of secondary master cylinder 15 With the rotation conllinear of secondary master cylinder first piston 16.
The left and right two ends of described the first spring of secondary master cylinder 15 respectively with the right side of secondary master cylinder second piston 14 and secondary master The left side center of cylinder first piston 16 is fixedly connected, left and right two ends and the pair master cylinder second piston of the first spring of secondary master cylinder 15 It is connected by welding between 14 and secondary master cylinder first piston 16.The center of the left side of secondary master cylinder second piston 14 and secondary master cylinder The right-hand member of second spring 13 is connected by welding.The left end of secondary master cylinder second spring 13 and the inner side for braking secondary Master cylinder body right-hand member wall It is fixedly connected.
Described braking pair Master cylinder body by secondary master cylinder first piston 16 and secondary master cylinder second piston 14 by inner chamber from left to right It is divided into I chamber and II chamber.
The secondary Master cylinder body of braking is columnar structured part, and the secondary Master cylinder body of braking is made up of cylinder bottom, casing wall and cylinder a mouthful wall；Cylinder Wall cylinder bottom and casing wall two are integral, and casing wall right-hand member cylinder mouthful place is outwards provided with cylinder mouthful ring flange, plane where cylinder mouthful ring flange with The axis of rotation of casing wall is vertical, and the right side of cylinder mouthful ring flange and the right side of casing wall are coplanar, are uniformly arranged on cylinder mouthful ring flange There are the flange bolt hole of installation bolt, the internal diameter of casing wall and secondary master cylinder second piston 14 and the secondary diameter phase of master cylinder first piston 16 Together；The center of cylinder mouthful wall is provided with central through hole, the equal diameters of output shaft 5 in the diameter and motor of central through hole, center The cylinder mouthful wall through hole of installation bolt, the cylinder mouthful wall through hole of cylinder mouthful wall and the flange bolt hole pair of casing wall are provided with around through hole Just, using being bolted on the cylinder of casing wall right-hand member mouthful ring flange, the axis of rotation of cylinder bottom, casing wall and cylinder mouthful wall is total to cylinder mouthful wall Line；
(the first oil inlet of the secondary master cylinder of braking 35 and braking are secondary main to be provided with two oil inlets on described braking pair Master cylinder body The oil inlet 36 of cylinder second) and two oil-outs (the first oil-out of the secondary master cylinder of braking 37 and the secondary oil-out 38 of master cylinder second of braking).
Described the first oil inlet of the secondary master cylinder of braking 35 is located on the casing wall in II chamber of the secondary Master cylinder body of braking, and secondary with braking II chamber of Master cylinder body is connected；The secondary oil inlet of master cylinder second of braking is located on the casing wall in I chamber of the secondary Master cylinder body of braking, and with braking I chamber of secondary master cylinder is connected；Secondary the first oil-out of master cylinder 37 of braking is located on the casing wall in II chamber of the secondary master cylinder of braking, and with braking II chamber of secondary Master cylinder body is connected；Secondary the second oil-out of master cylinder 38 of braking is located on the casing wall in the secondary chamber of Master cylinder body I of braking, and with system I chamber of dynamic pair Master cylinder body is connected.
The secondary master cylinder of described braking is located at second oil-out of the secondary master cylinder of braking 38 and the braking pair master cylinder positioned at II chamber in I chamber First oil-out is respectively adopted brake piping and is connected with electromagnetic valve unit.
Described electromagnetic valve unit includes that normally closed solenoid valve group, two-bit triplet solenoid valve block, normally open solenoid valve group, pressure are passed Sensor component, solenoid valve controller 41 and oil can 10.Wherein：
Described normally closed solenoid valve group includes the first normally closed solenoid valve 11, the second normally closed solenoid valve 33 and the 3rd normally closed electromagnetism Valve 34；
Described two-bit triplet solenoid valve block includes the first two-bit triplet magnetic valve 12 and the second two-bit triplet magnetic valve 17；
Described normally open solenoid valve group includes the first normally open solenoid valve 24, the second normally open solenoid valve 25, the 3rd normally opened electromagnetism Valve 26, the 4th normally open solenoid valve 27 and the 5th normally open solenoid valve 18；
Described pressure sensor assembly includes first pressure sensor 23 and second pressure sensor 28；
Described normally closed solenoid valve group is the first normally closed solenoid valve 11, the second normally closed solenoid valve 33 and the 3rd normally closed solenoid valve 34 working method is：
Normally closed solenoid valve group in the power-off state, prevents brake fluid from flowing through normally closed solenoid valve 11, the second normally closed solenoid valve 33 With the 3rd normally closed solenoid valve 34；In the energized state, brake fluid can flow through each normally closed solenoid valve to normally closed solenoid valve group.
Refering to Fig. 4 a, the first described two-bit triplet magnetic valve 12 has tri- ports of A, B, P, its specific port such as Fig. 4 a It is shown.Its in the power-off state, A mouthfuls of the first two-bit triplet magnetic valve 12 turns on P mouthful, under "on" position, the first two three B mouthfuls of three-way electromagnetic valve 12 and P mouthfuls of conducting.
Refering to Fig. 4 b, the second described two-bit triplet magnetic valve 17 has tri- ports of A, B, P, its specific port such as Fig. 4 b It is shown.Its in the power-off state, A mouthfuls of the second two-bit triplet magnetic valve 17 turns on P mouthful, under "on" position, the second two three B mouthfuls of three-way electromagnetic valve 17 and P mouthfuls of conducting.
Described normally open solenoid valve group is the first normally open solenoid valve 24, the second normally open solenoid valve 25, the 3rd normally open solenoid valve 26th, the working method of the 4th normally open solenoid valve 27 and the 5th normally open solenoid valve 18 is：
In the power-off state, brake fluid can be from being by the first normally opened electricity by normally open solenoid valve group for normally open solenoid valve group Magnet valve 24, the second normally open solenoid valve 25, the 3rd normally open solenoid valve 26, the 4th normally open solenoid valve 27 and the 5th normally open solenoid valve 18； In the energized state, brake fluid can not pass through the first normally open solenoid valve 24, the second normally opened electromagnetism by normally open solenoid valve group Valve 25, the 3rd normally open solenoid valve 26, the 4th normally open solenoid valve 27 and the 5th normally open solenoid valve 18.
Described one end of the 5th normally open solenoid valve 18 is connected using brake piping with the oil-out of master cylinder 3,5 constant virtues A mouthful, second two-bit triplet electricity of the other end of open electromagnetic valve 18 using brake piping respectively with the first two-bit triplet magnetic valve 12 A mouthfuls of magnet valve 17 and one end of normally closed solenoid valve 11 are connected.The other end of normally closed solenoid valve 11 is connected with oil can 10.
First oil-out of braking pair master cylinder 37 of the secondary master cylinder 9 of described braking is using brake piping and the second two-bit triplet electricity B mouthfuls of magnet valve 17 is connected.Second oil-out of braking pair master cylinder 38 of the secondary master cylinder 9 of braking is using brake piping and the first two three B mouthfuls of three-way electromagnetic valve 12 is connected.
P mouthfuls of the first described two-bit triplet magnetic valve 12 using brake piping respectively with first pressure sensor 23, the One normally open solenoid valve 24 is connected with the second normally open solenoid valve 25；P mouthfuls of second two-bit triplet magnetic valve 17 uses brake piping It is connected with the 4th normally open solenoid valve 27 with second pressure sensor 28, the 3rd normally open solenoid valve 26 respectively.First normally opened electromagnetism The other end of valve 24 is connected using brake piping with the first wheel cylinder 29；The other end of the second normally open solenoid valve 25 uses brake pipe Road is connected with the second wheel cylinder 30；The other end of the 3rd normally open solenoid valve 26 is connected using brake piping with third round cylinder 31； The other end of the 4th normally open solenoid valve 27 is connected using brake piping with fourth round cylinder 32.
One end of the second described normally close valve 33 is connected with oil can 10, and its other end is secondary main with the braking of the secondary master cylinder 9 of braking The first oil inlet of cylinder 35 is connected；One end of 3rd normally close valve 34 is connected with oil can 10, the system of its other end and the secondary master cylinder 9 of braking The second oil inlet of dynamic pair master cylinder 36 is connected.
Described first pressure sensor 23 is used for the first two-bit triplet of real-time monitoring magnetic valve 12 and the first normally opened electromagnetism Brake fluid pressure between valve 24, the second normally open solenoid valve 25；Second pressure sensor 28 is used for real-time monitoring the second two three Brake fluid pressure between the normally open solenoid valve 26 of three-way electromagnetic valve 17 and the 3rd, the 4th normally open solenoid valve 27；The effect of oil can 10 is I chamber and II chamber fluid infusion for the secondary master cylinder 9 of braking, while when a certain wheel cylinder of brakes needs decompression, in absorption brakes High-pressure brake liquid, complete brakes in decompression process.
Correspondence terminals are passed with pedal displacement sensor 2, first pressure respectively on described electronic control unit (ECU) 40 Respective terminal electric wire connection on sensor 23, second pressure sensor 28, solenoid valve controller 41, electric machine controller 42.
Described electronic control unit (ECU) 40 is mainly used in receiving each sensor signal, and according to sensor signal Control signal is sent so as to carry out decision-making to electric machine controller 42 and solenoid valve controller 41.
Correspondence terminals are electric with the first normally closed solenoid valve 11, the first two-bit triplet respectively on described solenoid valve controller 41 Magnet valve 17, the second two-bit triplet magnetic valve 12, the 5th normally open solenoid valve 18, the first normally open solenoid valve 24, the second normally open solenoid valve 25th, in the 3rd normally open solenoid valve 26, the 4th normally open solenoid valve 27, the second normally closed solenoid valve 33, the valve of the 3rd normally closed solenoid valve 34 The terminals electric wire connection of electromagnet.
The control of the described electronically controlled unit (ECU) 40 of solenoid valve controller 41, as electronic control unit (ECU) After control signal under different operating modes is passed to solenoid valve controller 41 by 40, solenoid valve controller 41 can be by Electrical signal lines Control signal is passed to each magnetic valve in electromagnetic valve unit, by the control to each magnetic valve open and close status System, it is ensured that normal service ability of the brakes under different operating modes.
Refering to Fig. 3, in motor, variable size of current and direction is provided by for motor stator 8, and then determine motor Son 8 produces variable magnetic direction and size.The magnetic direction and size produced according to motor stator 8, rotor 7 are with not Same rotation direction and rotating speed is rotated.Rotor 7 has following three kinds of states：
The first state：Rotor 7 is rotated forward, and the internal thread of rotor 7 is driven by the external screw thread with power transmission shaft 6, band Dynamic power transmission shaft 6 is rotated forward, and the external screw thread of power transmission shaft 6 is driven by the external screw thread with output shaft 5, drives output shaft 5 to reach It is dynamic, so that output shaft 5 promotes secondary master cylinder first piston 16 to move to left, so that for pressure is set up in I, II chamber in the secondary master cylinder 9 of braking；
Second state：Rotor 7 is rotated backward, and the internal thread of rotor 7 is driven by the external screw thread with power transmission shaft 6, band Dynamic power transmission shaft 6 is rotated backward, and the external screw thread of power transmission shaft 6 is driven by the external screw thread with output shaft 5, drives output shaft 5 to be moved back by It is dynamic, so that output shaft 5 promotes secondary master cylinder first piston 16 to move to right, so that for I, II chamber in the secondary master cylinder 9 of braking reduces pressure；
The third state：Rotor 7 stops operating, and power transmission shaft 6 is static, and output shaft 5 is static, secondary master cylinder first piston 16 Position is constant, and I, II cavity pressure in the secondary master cylinder 9 of braking is constant.
Described brake includes the first wheel cylinder 29, the second wheel cylinder 30, third round cylinder 31, fourth round cylinder 32.
The course of work of integrated secondary each operating mode of master cylinder line traffic control brake fluid system of the present invention：
First, conventional brake：
1st, conventional brake pressurization：
Refering to Fig. 5, after driver's brake pedal 1, pedal displacement sensor 2 is by the speed of brake pedal 1 and position Shifting signal is delivered to electronic control unit, and electronic control unit makes a policy according to the signal of pedal displacement sensor 2, is applied to Electric machine controller 42 and solenoid valve controller 41.Electric machine controller 42 makes rotor by controlling size of current and the direction of rotor 7 7 are rotated with rotating speed of target and direction, and the rotation of rotor 7 drives power transmission shaft 6 to rotate, and the rotation of power transmission shaft 6 and then make 5 turns of output shaft It is dynamic.Output shaft 5 promotes secondary master cylinder first piston 16, so that pressure is set up in the secondary chamber of master cylinder II, the hydraulic pressure in the chamber of secondary master cylinder II is pushed Dynamic pair master cylinder second piston 14 is moved, so that pressure is set up in the secondary chamber of master cylinder I.
Now, solenoid valve controller 41 can be the 5th normally open solenoid valve 18, the first two-bit triplet magnetic valve 12, the second two Three-way magnetic valve 17 is powered.Brake fluid in master cylinder 3 cannot be applied to brakes by the oil-out on master cylinder 3 In, now, be applied to pedal force on master cylinder first piston 21 by being input into push rod 22 by brake pedal 1, master cylinder first piston 21 Compression master cylinder the first spring 4, so as to produce pedal sense in the presence of spring force by the first spring of master cylinder 4.
Meanwhile, I chamber brake fluid of the secondary master cylinder 9 of braking reaches the first two-bit triplet by braking the second oil-out of secondary master cylinder 38 After B mouthfuls of magnetic valve 12, from P mouthfuls of outflow, the first wheel cylinder 29 is reached and by second respectively through the first normally open solenoid valve 24 Normally open solenoid valve 25 reaches the second wheel cylinder 30；II chamber brake fluid of the secondary master cylinder 9 of braking is by braking the first oil-out of secondary master cylinder 37 After reaching B mouthfuls of the second two-bit triplet magnetic valve 17, from P mouthfuls of outflow, third round is reached respectively through the 3rd normally open solenoid valve 26 Cylinder 31, fourth round cylinder 32 is reached by the 4th normally open solenoid valve 27.So as to realize setting up the pressure of brakes, automobile is reached for The purpose of braking.Now flow of pressurized is as shown in thick line in Fig. 5.
2nd, conventional brake decompression process：
Refering to Fig. 6, when driver loosen the brake 1 after, pedal displacement sensor 2 is by the speed of brake pedal 1 and position Shifting signal is delivered to electronic control unit, and electronic control unit makes a policy according to the signal of pedal displacement sensor 2, is applied to Electric machine controller 42 and solenoid valve controller 41.Electric machine controller 42 makes rotor by controlling size of current and the direction of rotor 7 7 are rotated with rotating speed of target and direction, and now, electric machine controller 42 can control rotor 7 to rotate backward.The rotation of rotor 7 drives and passes Moving axis 6 is rotated, and the rotating backward of power transmission shaft 6 is moved after making power transmission shaft 6, and the rear shifting of power transmission shaft 6 can make secondary master cylinder first piston 16 After move so that the II cavity pressure reduction of the secondary master cylinder 9 of braking, secondary master cylinder first piston 16 can be in I chamber hydraulic pressure of the secondary master cylinder 9 of braking Moved after under the collective effect of the spring force of power and the first spring of secondary master cylinder 15 and secondary master cylinder second spring 13.
Now, solenoid valve controller 41 can be the 5th normally open solenoid valve 18, the first two-bit triplet magnetic valve 12, the second two Three-way magnetic valve 17 is powered.
Now, the brake fluid of the first wheel cylinder 29 is arrived through the first normally open solenoid valve 24, the first two-bit triplet magnetic valve 12 Up to I chamber of secondary master cylinder, the brake fluid of the second wheel cylinder 30 is arrived through the second normally open solenoid valve 25, the first two-bit triplet magnetic valve 12 Up to I chamber of secondary master cylinder；The brake fluid of the 3rd wheel cylinder 31 is arrived through the 3rd normally open solenoid valve 26, the second two-bit triplet magnetic valve 17 Up to II chamber of secondary master cylinder；The brake fluid of the 4th wheel cylinder 32 is through the 4th normally open solenoid valve 27, the second two-bit triplet magnetic valve 17 Reach II chamber of secondary master cylinder；Make the first wheel cylinder 29, the second wheel cylinder 30, the 3rd wheel cylinder 31, the 4th wheel cylinder Brake fluid pressure in 32 declines, so that brakes realizes decompression.Now flow of pressurized is as shown in thick line in Fig. 6.
2nd, abs braking：
1st, abs braking pressurization：
Refering to Fig. 7, after driver's brake pedal 1, pedal displacement sensor 2 is by the speed of brake pedal 1 and position Shifting signal is delivered to electronic control unit, and electronic control unit makes a policy according to the signal of pedal displacement sensor 2, is applied to Electric machine controller 42 and solenoid valve controller 41.Electric machine controller 42 makes rotor by controlling size of current and the direction of rotor 7 7 are rotated with rotating speed of target and direction, and the rotation of rotor 7 drives power transmission shaft 6 to rotate, and the rotation of power transmission shaft 6 and then make 5 turns of output shaft It is dynamic.Output shaft 5 promotes secondary master cylinder first piston 16, so that pressure is set up in the secondary chamber of master cylinder II, the hydraulic pressure in the chamber of secondary master cylinder II is pushed Dynamic pair master cylinder second piston 14 is moved, so that pressure is set up in the secondary chamber of master cylinder I.
Now, solenoid valve controller 41 can be the 5th normally open solenoid valve 18, the first two-bit triplet magnetic valve 12, the second two Three-way magnetic valve 17 is powered.Brake fluid in master cylinder 3 cannot be applied to brakes by the oil-out on master cylinder 3 In, now, be applied to pedal force on master cylinder first piston 21 by being input into push rod 22 by brake pedal 1, master cylinder first piston 21 The first spring of compression master cylinder 4, so that by producing pedal sense in the presence of the first spring of master cylinder 4.
Meanwhile, I chamber brake fluid of the secondary master cylinder 9 of braking reaches the A of the first two-bit triplet magnetic valve 12 by the second oil-out After mouthful, from P mouthfuls of outflow, the first wheel cylinder 29 is reached and by the second normally open solenoid valve 25 respectively through the first normally open solenoid valve 24 Reach the second wheel cylinder 30；II chamber brake fluid of the secondary master cylinder 9 of braking reaches the second two-bit triplet magnetic valve 17 by the first oil-out A mouthfuls after, from P mouthfuls of outflow, third round cylinder 31 is reached respectively through the 3rd normally open solenoid valve 26, by the 4th normally open solenoid valve 27 Reach fourth round cylinder 32.So as to realize setting up the pressure of brakes, the purpose of automobile brake is reached for.Now flow of pressurized is as schemed In 7 shown in thick line.
2nd, abs braking decompression process：
Refering to Fig. 8, when driver loosen the brake 1 after, pedal displacement sensor 2 is by the speed of brake pedal 1 and position Shifting signal is delivered to electronic control unit, and electronic control unit makes a policy according to the signal of pedal displacement sensor 2, is applied to Electric machine controller 42 and solenoid valve controller 41.Electric machine controller 42 makes rotor by controlling size of current and the direction of rotor 7 7 are rotated with rotating speed of target and direction, and now, electric machine controller 42 can control rotor 7 to rotate backward.The rotation of rotor 7 drives and passes Moving axis 6 is rotated, and the rotating backward of power transmission shaft 6 is moved after making power transmission shaft 6, and the rear shifting of power transmission shaft 6 can make secondary master cylinder first piston 16 After move so that the II cavity pressure reduction of the secondary master cylinder 9 of braking, secondary master cylinder first piston 16 can be in I chamber hydraulic pressure of the secondary master cylinder 9 of braking Moved after under the collective effect of the spring force of power and the first spring of secondary master cylinder 15 and secondary master cylinder second spring 13.
Now, solenoid valve controller 41 can be the 5th normally open solenoid valve 18, the first two-bit triplet magnetic valve 12, the second two Three-way magnetic valve 17 is powered.
Now, the brake fluid of the first wheel cylinder 29 is arrived through the first normally open solenoid valve 24, the first two-bit triplet magnetic valve 12 Up to I chamber of secondary master cylinder, the brake fluid of the second wheel cylinder 30 is arrived through the second normally open solenoid valve 25, the first two-bit triplet magnetic valve 12 Up to I chamber of secondary master cylinder；The brake fluid of the 3rd wheel cylinder 31 is arrived through the 3rd normally open solenoid valve 26, the second two-bit triplet magnetic valve 17 Up to II chamber of secondary master cylinder；The brake fluid of the 4th wheel cylinder 32 is through the 4th normally open solenoid valve 27, the second two-bit triplet magnetic valve 17 Reach II chamber of secondary master cylinder；Make the first wheel cylinder 29, the second wheel cylinder 30, the 3rd wheel cylinder 31, the 4th wheel cylinder Brake fluid pressure in 32 declines, so that brakes realizes decompression.Now flow of pressurized is as shown in thick line in Fig. 8.
3rd, conventional brake pressure maintaining period：
Refering to Fig. 9, when brakes enters ANTI LOCK whole wheel pressurize, rotor 7 stops operating, and pair is main Cylinder first piston 16, the secondary position of master cylinder second piston 14 is constant.Now, the 5th normally open solenoid valve 18, the first two-bit triplet electromagnetism Valve 12, the second two-bit triplet magnetic valve 17, the first normally open solenoid valve 24, the second normally open solenoid valve 25, the 3rd normally open solenoid valve 26, 4th normally open solenoid valve 27 is powered, the brake fluid in the first wheel cylinder 29, the second wheel cylinder 30, third round cylinder 31, fourth round cylinder 32 Pressure remains unchanged, so as to realize the pressure maintaining period of abs braking.Now flow of pressurized is as shown in thick line in Fig. 9.
3rd, ESP damped conditions：
, it is necessary to be individually pressurized to single-wheel or multiple wheels, depressurized and pressurize work under ESP operating modes.In this example By the first wheel cylinder 29, fourth round cylinder 32 are pressurized respectively, are depressurized and the various combination operating mode of pressurize as a example by illustrate.
1st, the supercharging of the first wheel cylinder, fourth round cylinder supercharging operating mode：
Refering to Figure 10, vehicle during startup or turning, when the first wheel cylinder 29, the cunning of wheel corresponding to fourth round cylinder 32 , it is necessary to be braked to above-mentioned wheel when rate of rotation is higher.Now, electronic control unit can be according to the wheel speed sensors for collecting (not shown) signal, estimates wheel slip rate, when the slippage rate of wheel exceedes target slippage rate, electronic control unit Control can be made to solenoid valve controller 41, electric machine controller 42.Now, the control of electric machine controller 42 control rotor 7 is rotated forward, It is driven and then drives output shaft 5 to move forward by power transmission shaft 6, promote first piston 16 to move forward, the reach of first piston 16 can drives The reach of second piston 14, so as to set up the pressure of the secondary master cylinder 9 of braking.
Meanwhile, solenoid valve controller 41 can control the first two-bit triplet magnetic valve 12, the second two-bit triplet magnetic valve 17 to lead to Electricity, the second normally open solenoid valve 25, the 3rd normally open solenoid valve 26 is powered, and the brake fluid of the secondary master cylinder 9 of braking is through the first two-bit triplet electricity Magnet valve 12, the first normally open solenoid valve 24 reach the first wheel cylinder 29, and the brake fluid of the secondary master cylinder 9 of braking is through the second two-bit triplet magnetic valve 17th, the 4th normally open solenoid valve 27 reaches fourth round cylinder 32, so as to set up pressure to the first wheel cylinder 29, fourth round cylinder 32.Now liquid Pressure stream is as shown in thick line in Figure 10.
2nd, the first wheel cylinder pressurize, fourth round cylinder supercharging operating mode：
Refering to Figure 11, when the first wheel cylinder 29 needs pressurize, and fourth round cylinder 32 needs supercharging, electronic control unit can be controlled Electric machine controller 42, solenoid valve controller 41 work.Now, electronic control unit meeting controlled motor controller 42 so that motor Rotor 7 is rotated forward, and power transmission shaft 6 is rotated and drives output shaft 5 to move forward, before secondary master cylinder first piston 16, secondary master cylinder second piston 14 Move.I, II liang of cavity pressure of the secondary master cylinder 9 of braking is raised.
Meanwhile, solenoid valve controller 41 can control the second two-bit triplet magnetic valve 17, the first normally open solenoid valve 24, second normal Open electromagnetic valve 25, the 3rd normally open solenoid valve 26, the 5th normally open solenoid valve 18, the 3rd normally closed solenoid valve 34 are powered.Now, brake secondary Among high pressure liquid force feed in I chamber of master cylinder 9 can be by the inflow fuel tank of the 3rd normally closed solenoid valve 34；II chamber of the secondary master cylinder 9 of braking During interior high pressure liquid force feed can be by the second two-bit triplet magnetic valve 17 and the inflow fourth round of the 4th normally open solenoid valve 27 cylinder 32, make The pressure of fourth round cylinder 32 increases.Simultaneously as the first normally open solenoid valve 24 is powered close, so as to maintain the system of the first wheel cylinder 29 Dynamic pressure.Now flow of pressurized is as shown in thick line in Figure 11.
Reduced due to that can cause to brake the brake fluid in I chamber or II chamber in secondary master cylinder 9 in single wheel cylinder pressurization, when I chamber brake fluid in the secondary master cylinder 9 of braking because decompression cause deficiency when, solenoid valve controller 41 can control the 3rd normally closed solenoid valve 34 It is powered, in I chamber in alloing the brake fluid in oil can 10 to flow into the secondary master cylinder 9 of braking, realizes fluid infusion；When in the secondary master cylinder 9 of braking II chamber brake fluid because decompression cause deficiency when, solenoid valve controller 41 can control the 4th normally closed solenoid valve 33 to be powered, and make oil can Brake fluid in 10 can be flowed into II chamber in the secondary master cylinder 9 of braking, realize fluid infusion.
3rd, the first wheel cylinder pressurize, fourth round cylinder pressurize operating mode：
Refering to Figure 12, when the first wheel cylinder 29, fourth round cylinder 32 need pressurize, electronic control unit can controlled motor control Device 42, solenoid valve controller works.Now, electronic control unit meeting controlled motor controller 42 so that rotor 7 stops turning Dynamic, power transmission shaft 6, output shaft 5 are static, and secondary master cylinder first piston 16, secondary master cylinder second piston 14 are static.
Meanwhile, solenoid valve controller 41 can control the first two-bit triplet magnetic valve 12, the second two-bit triplet magnetic valve 17, One normally open solenoid valve 24, the second normally open solenoid valve 25, the 3rd normally open solenoid valve 26, the 4th normally open solenoid valve 27, the 5th normally opened electricity Magnet valve 18 is powered, so as to maintain the first wheel cylinder 29, the brake pressure of fourth round cylinder 32.Now thick line institute in flow of pressurized such as Figure 12 Show.
4th, the first wheel cylinder pressurize, fourth round cylinder decompression operating mode：
Refering to Figure 13, when the first wheel cylinder 29 needs pressurize, and fourth round cylinder 32 needs decompression, electronic control unit can be controlled Solenoid valve controller 41, electric machine controller 42 work, now, electronic control unit meeting controlled motor controller 42 so that motor Rotor 7 stops operating, and power transmission shaft 6, output shaft 5 are static, and secondary master cylinder first piston 16, secondary master cylinder second piston 14 are static.
Meanwhile, solenoid valve controller 41 can control the first two-bit triplet magnetic valve 12, the first normally open solenoid valve 24, second normal Open electromagnetic valve 25, the 3rd normally open solenoid valve 26, the 5th normally open solenoid valve 18, the first normally closed solenoid valve 11 are powered.Fourth round cylinder 32 In brake fluid can sequentially pass through the 4th normally open solenoid valve 27, the second two-bit triplet magnetic valve 17, the first normally closed solenoid valve 11 and arrive Up to oil can 10, the decompression to fourth round cylinder 32 is realized；Simultaneously as the first normally open solenoid valve 24 is powered close, it is right so as to realize The pressurize of the first wheel cylinder 29.Now flow of pressurized is as shown in thick line in Figure 13.
Due to the brake fluid between wheel cylinder and the secondary master cylinder 9 of braking can be caused to reduce in single wheel cylinder decompression process, work as braking I chamber brake fluid in secondary master cylinder 9 because decompression cause deficiency when, solenoid valve controller 41 can control the 3rd normally closed solenoid valve 34 to lead to Electricity, in I chamber in alloing the brake fluid in oil can 10 to flow into the secondary master cylinder 9 of braking, realizes fluid infusion；When in the secondary master cylinder 9 of braking II chamber brake fluid because decompression cause deficiency when, solenoid valve controller 41 can control the 4th normally closed solenoid valve 33 to be powered, and make oil can 10 In brake fluid can flow into II chamber in the secondary master cylinder 9 of braking, realize fluid infusion.
5th, the decompression of the first wheel cylinder, fourth round cylinder decompression operating mode：
Refering to Figure 14, when the first wheel cylinder 29, fourth round cylinder 32 need decompression, electronic control unit can controlled motor control Device 42, solenoid valve controller 41 work.Now, electronic control unit meeting controlled motor controller 42 so that rotor 7 is reverse Rotate, be driven and then drive output shaft 5 to move to right by power transmission shaft 6, promote first piston 16 to move to right, the rear shifting meeting of first piston 16 Moving to right for second piston 14 is driven, so that the pressure reduction of the secondary master cylinder 9 of braking.Meanwhile, solenoid valve controller 41 can control One or two position-3-way solenoid valve 12, the second two-bit triplet magnetic valve 17, the second normally open solenoid valve 25, the 3rd normally open solenoid valve 26, One normally closed solenoid valve 11 is powered.Now the brake fluid of the first wheel cylinder 29 is through the first normally open solenoid valve 24, the first two-bit triplet electromagnetism Valve 12 reaches I chamber of the secondary master cylinder 9 of braking, and the brake fluid of fourth round cylinder 32 is through the 4th normally open solenoid valve 27, the second two-bit triplet electricity Magnet valve 17 reaches II chamber of the secondary master cylinder 9 of braking, so that the reduction of the first wheel cylinder 29, the brake pressure of fourth round cylinder 32.Now hydraulic pressure Stream is as shown in thick line in Figure 14.
4th, failure braking：
Refering to Figure 15, pressurization：When brakes circuit breaks down, each magnetic valve is in powering off initial shape State.After driver's brake pedal 1, input push rod 22 can promote master cylinder first piston 21 to move, master cylinder first piston 21 Movement can compress the first spring of master cylinder 4, and the mobile of the first spring of master cylinder 4 can make master cylinder second piston 20 move forward, so that braking Master cylinder 3 sets up pressure.Brake fluid in master cylinder 3 arrives separately at the first two-bit triplet electromagnetism after the 5th normally open solenoid valve 18 Valve 12, the second two-bit triplet magnetic valve 17 flows through the brake fluid of the first two-bit triplet magnetic valve 12 respectively through the first normally opened electricity The first wheel cylinder 29 is reached after magnet valve 24, by reaching the second wheel cylinder 30 after the second normally open solenoid valve 25；Flow through second The brake fluid of two-bit triplet magnetic valve 17 reaches the 3rd wheel cylinder 31 respectively through the 3rd normally open solenoid valve 26, normal by the 4th Open electromagnetic valve 27 reaches the 4th wheel cylinder 32, so as to realize braking system construction in a systematic way pressure.Now flow of pressurized is as shown in thick line in Figure 15.
Refering to Figure 16, decompression process：When driver loosen the brake 1 after, input push rod 22 move to right, master cylinder first piston 21 move to right under the spring-force driven dual of the first spring of master cylinder 4, and master cylinder second piston 20 is common in master cylinder second spring 19 and hydraulic coupling Moved to right under same-action, the pressure of master cylinder 3 declines, the brake fluid of the first wheel cylinder 29 is through the first normally open solenoid valve 24, the Master cylinder 3 is reached after one or two position-3-way solenoid valve 12, the 5th normally open solenoid valve 18；The brake fluid of the second wheel cylinder 30 is through Master cylinder 3 is reached after two normally open solenoid valves 25, the first two-bit triplet magnetic valve 12, the 5th normally open solenoid valve 18；3rd braking The brake fluid of wheel cylinder 31 is reached through the 3rd normally open solenoid valve 26, the second two-bit triplet magnetic valve 17 after the 5th normally open solenoid valve 18 Master cylinder 3；The brake fluid of the 4th wheel cylinder 32 through the 4th normally open solenoid valve 27, the second two-bit triplet magnetic valve 17, the 5th Master cylinder 3 is reached after normally open solenoid valve 18, so as to realize each wheel cylinder decompression.Now thick line institute in flow of pressurized such as Figure 16 Show.

Claims (9)

1. a kind of integrated secondary master cylinder line traffic control brake fluid system, including electronic control unit, it is characterised in that described integrated pair Master cylinder line traffic control brake fluid system also includes brake actuating unit, master cylinder (3), the secondary master cylinder unit of braking, electromagnetic valve unit With brake；
Described braking pair master cylinder unit includes motor and the secondary master cylinder (9) of braking；
Described electromagnetic valve unit includes the first two-bit triplet magnetic valve (12), the second two-bit triplet magnetic valve (17), 5 constant virtues Open electromagnetic valve (18), the second normally closed solenoid valve (33) and the 3rd normally closed solenoid valve (34)；
Described brake actuating unit is by the master cylinder first piston (21) in input push rod (22) therein and master cylinder (3) Connection；Master cylinder (3) is connected by the 5th normally open solenoid valve (18) with electromagnetic valve unit pipeline；The secondary master cylinder (9) of braking passes through First two-bit triplet magnetic valve (12), the second two-bit triplet magnetic valve (17), the second normally closed solenoid valve (33) and the 3rd normally closed electricity Magnet valve (34) and electromagnetic valve unit pipeline are connected；Motor and the secondary master cylinder (9) of braking are by output shaft therein (5) and secondary master cylinder the One piston (16) is fixedly connected；Electronic control unit and brake actuating unit, the secondary master cylinder unit of braking and electromagnetic valve unit electric wire Connection.
2. according to the integrated secondary master cylinder line traffic control brake fluid system described in claim 1, it is characterised in that described braking is secondary main Cylinder (9) is by the first two-bit triplet magnetic valve (12), the second two-bit triplet magnetic valve (17), the second normally closed solenoid valve (33) and the Three normally closed solenoid valves (34) and the connection of electromagnetic valve unit pipeline refer to：
The braking pair oil-out of master cylinder first (37) in described braking pair master cylinder (9) uses brake piping and the second two-bit triplet B mouthfuls of magnetic valve (17) is connected, and the braking pair oil-out of master cylinder second (38) of the secondary master cylinder (9) of braking is using brake piping and the B mouthfuls of connection of one or two position-3-way solenoid valve (12)；The braking pair oil inlet of master cylinder first (35) of the secondary master cylinder (9) of braking is using braking Pipeline is connected with the one end of the second normally close valve (33)；The braking pair oil inlet of master cylinder second (36) of the secondary master cylinder (9) of braking is used Brake piping is connected with one end of the 3rd normally close valve (34).
3. according to the integrated secondary master cylinder line traffic control brake fluid system described in claim 1, it is characterised in that described master cylinder (3) including master cylinder second spring (19), master cylinder second piston (20), the spring of master cylinder first (4), master cylinder first piston (21) and system Dynamic Master cylinder body；
Described master cylinder body includes cylinder body and cylinder cap, and cylinder body shuts the core structure part of right-end openings for left end, cylinder body A master cylinder oil-out (39) is provided with left end casing wall, ring flange is provided with the right-hand member cylinder mouthful of cylinder body, on ring flange The flange bolt through hole of installation bolt, cylinder cap disc-like structural member are equably provided with, the center of cylinder cap is provided with installs defeated Enter the push rod through hole of push rod (22), the cylinder cap through hole of installation bolt is equably provided with around push rod through hole, flange bolt leads to Hole is relative with cylinder cap through hole just, and cylinder cap is used and is bolted on the ring flange of cylinder body right-hand member；
The described spring of master cylinder first (4) is a groups of springs, and the groups of springs is by three different lengths and No. 1 spring, 2 of diameter Number spring and No. 3 springs compositions, No. 1 spring, No. 2 springs are set in together with No. 3 springs；
Described master cylinder second spring (19), master cylinder second piston (20), the spring of master cylinder first (4) and master cylinder first piston (21) It is sequentially arranged at from left to right in master cylinder body, master cylinder second spring (19), master cylinder second piston (20), the spring of master cylinder first (4) with the rotation conllinear of master cylinder first piston (21), master cylinder second spring (19), master cylinder second piston (20), master cylinder the To be fixedly connected between one spring (4) and master cylinder first piston (21), the left end wall of master cylinder second spring (19) left end and cylinder body It is fixedly connected at medial center.
4. according to the integrated secondary master cylinder line traffic control brake fluid system described in claim 1, it is characterised in that described motor includes Stator (8), rotor (7), electric machine controller, output shaft (5), six structure identicals power transmission shaft (6) and electric machine casing；
Described stator (8) is to be fixedly connected in the central through hole of electric machine casing, the center of stator (8) and electric machine casing The rotation conllinear of through hole, rotor (7) has gap, rotor in stator (8) between rotor (7) and stator (8) (7) with the rotation conllinear of stator (8), output shaft (5) in rotor (7), by bearing pacified by the two ends of output shaft (5) On the left and right blind flange of electric machine casing, the rotation conllinear of output shaft (5) and rotor (7), six structure identicals are passed Moving axis (6) is installed between output shaft (5) and rotor (7), and six structure identicals power transmission shaft (6) are uniformly distributed in power transmission shaft (5) it is threaded connection, six structure identical power transmission shafts around, between rotor (7) and six structure identicals power transmission shaft (6) (6) it is to be threadedly coupled between output shaft (5).
5. according to the integrated secondary master cylinder line traffic control brake fluid system described in claim 4, it is characterised in that described motor turn Sub (7) are circular ring structure part, and internal thread is provided with the inwall of the rotor (7) of motor；
Each power transmission shaft (6) is respectively provided with external screw thread in six structure identicals power transmission shaft (6), and the tooth form of screw thread is equal with pitch Identical, six structure identicals power transmission shaft (6) are with identical length and diameter, six structure identical power transmission shafts of motor (6) the external screw thread tooth form on is identical with the internal thread of pitch and rotor (7), rotor (7) and six structure identicals power transmission shaft (6) Internal messing and form the first screw thread pair；The outside of the output shaft (5) of motor is provided with external screw thread, six structure identical power transmission shafts (6) external screw thread tooth form on is identical with pitch and the outside external screw thread of output shaft (5), and output shaft (5) and six around it tie (6) external toothing of structure identical power transmission shaft and form the second screw thread pair.
6. according to the integrated secondary master cylinder line traffic control brake fluid system described in claim 1, it is characterised in that described braking is secondary main Cylinder (9) includes secondary master cylinder second spring (13), secondary master cylinder second piston (14), the secondary spring of master cylinder first (15), secondary master cylinder first Piston (16) and the secondary Master cylinder body of braking；
Described secondary master cylinder second spring (13), secondary master cylinder second piston (14), the secondary spring of master cylinder first (15) and secondary master cylinder the One piston (16) is sequentially loaded into the secondary Master cylinder body of braking from left to right, secondary master cylinder second piston (14) and secondary master cylinder first piston (16) to be slidably connected and the secondary Master cylinder body inwall of braking between, secondary master cylinder second spring (13), secondary master cylinder second piston (14), pair The spring of master cylinder first (15) and the rotation conllinear of secondary master cylinder first piston (16)；The left end of secondary master cylinder second spring (13) with Center on the inside of the secondary Master cylinder body left end wall of braking is to be welded to connect, right-hand member and the pair master cylinder second of secondary master cylinder second spring (13) The center of piston (14) left side is welded to connect, center and the pair bullet of master cylinder first of secondary master cylinder second piston (14) right side The left end of spring (15) is fixedly connected, the left side center of the right-hand member of the spring of secondary master cylinder first (15) and secondary master cylinder first piston (16) Place is fixedly connected；The secondary Master cylinder body of braking by secondary master cylinder second piston (14) and secondary master cylinder first piston (16) by inner chamber from left to right It is divided into I chamber and II chamber.
7. according to the integrated secondary master cylinder line traffic control brake fluid system described in claim 6, it is characterised in that the braking pair master cylinder Body is columnar structured part, and the secondary Master cylinder body of braking is made up of cylinder bottom, casing wall and cylinder a mouthful wall；Cylinder bottom is connected with casing wall, casing wall Cylinder mouthful ring flange is provided with right-hand member cylinder mouthful, the flange bolt hole of installation bolt is evenly arranged with cylinder mouthful ring flange, casing wall Internal diameter and secondary master cylinder second piston (14) are identical with secondary master cylinder first piston (16) diameter；The center of cylinder mouthful wall is provided with center Through hole, output shaft (5) equal diameters in the diameter and motor of central through hole, is provided with installation bolt around central through hole Cylinder mouthful wall through hole, cylinder mouthful wall is used and is bolted on the cylinder of casing wall right-hand member mouthful ring flange, the revolution of cylinder bottom, casing wall and cylinder mouthful wall Axis collinear；
Two oil inlets are provided with the secondary Master cylinder body of braking and brake the secondary oil inlet of master cylinder first (35) with the secondary master cylinder second of braking Oil inlet (36) and two oil-outs are the secondary oil-out of the master cylinder first (37) of braking and the secondary oil-out of the master cylinder second (38) of braking；System The dynamic pair oil inlet of master cylinder first (35) on the casing wall in II chamber of the secondary Master cylinder body of braking, and with II chamber phase of the secondary Master cylinder body of braking Connection, the secondary oil inlet of the master cylinder second (36) of braking on the casing wall in I chamber of the secondary Master cylinder body of braking, and with the I of the secondary master cylinder of braking Chamber is connected；The secondary oil-out of the master cylinder first (37) of braking on the casing wall in II chamber of the secondary master cylinder of braking, and with the secondary master cylinder of braking II chamber of body is connected, and the secondary oil-out of the master cylinder second (38) of braking is on the casing wall in the secondary chamber of Master cylinder body I of braking and secondary with braking I chamber of Master cylinder body is connected.
8. according to the integrated secondary master cylinder line traffic control brake fluid system described in claim 1, it is characterised in that described magnetic valve list Unit also includes the first normally closed solenoid valve (11), the first normally open solenoid valve (24), the second normally open solenoid valve (25), the 3rd normally opened electromagnetism Valve (26), the 4th normally open solenoid valve (27), first pressure sensor (23) and second pressure sensor (28)；
Described brake includes the first wheel cylinder (29), the second wheel cylinder (30), third round cylinder (31) and fourth round cylinder (32)；
The other end of the 5th described normally open solenoid valve (18) is using brake piping and the A of the first two-bit triplet magnetic valve (12) Mouthful, one end of A mouthfuls of the second two-bit triplet magnetic valve (17) and normally closed solenoid valve (11) be connected, normally closed solenoid valve (11) it is another One end is connected with oil can (10), and P mouthfuls of the first two-bit triplet magnetic valve (12) uses brake piping and first pressure sensor (23), the first normally open solenoid valve (24) is connected with one end of the second normally open solenoid valve (25)；Second two-bit triplet magnetic valve (17) P mouthfuls is using brake piping and second pressure sensor (28), the 3rd normally open solenoid valve (26) and the 4th normally open solenoid valve (27) it is connected；The other end of the first normally open solenoid valve (24) is connected using brake piping with the first wheel cylinder (29), and second is normal The other end of open electromagnetic valve (25) is connected using brake piping with the second wheel cylinder (30), the 3rd normally open solenoid valve (26) it is another End is connected using brake piping with third round cylinder (31), and the other end of the 4th normally open solenoid valve (27) uses brake piping and the Four wheel cylinders (32) are connected；One end of second normally close valve (33) is connected with oil can (10), one end and the oil of the 3rd normally close valve (34) Kettle (10) is connected.
9. according to the integrated secondary master cylinder line traffic control brake fluid system described in claim 1, it is characterised in that described Electronic Control Unit and brake actuating unit, the secondary master cylinder unit of braking are connected with electromagnetic valve unit electric wire and refer to：
Terminals on described electronic control unit (40) respectively with pedal displacement sensor (2), first pressure sensor (23), the terminals electric wire connection on second pressure sensor (28), solenoid valve controller (41), electric machine controller (42)；
Terminals on described solenoid valve controller (41) respectively with the first normally closed solenoid valve (11), the first two-bit triplet electromagnetism It is valve (17), the second two-bit triplet magnetic valve (12), the 5th normally open solenoid valve (18), the first normally open solenoid valve (24), second normally opened It is magnetic valve (25), the 3rd normally open solenoid valve (26), the 4th normally open solenoid valve (27), the second normally closed solenoid valve (33), the 3rd normally closed The terminals electric wire connection of electromagnet in the valve of magnetic valve (34).
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CN108394389A (en) * 2018-03-13 2018-08-14 安徽诺电动科技有限公司 A kind of electric sightseeing vehicle automatic emergency brake executive device
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CN110316171A (en) * 2019-07-19 2019-10-11 赵海荣 A kind of braking aid-device for automobile
CN110316170A (en) * 2019-07-19 2019-10-11 赵海荣 A kind of automobile brake aid-device of decoupling
CN112124273A (en) * 2020-09-18 2020-12-25 东风商用车有限公司 Distribution control mechanism and method for compressed air for vehicle and vehicle
CN113264022A (en) * 2021-07-07 2021-08-17 中汽创智科技有限公司 Braking system with redundancy function
CN113264021A (en) * 2021-07-07 2021-08-17 中汽创智科技有限公司 Redundant brake unit and vehicle
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CN109774680A (en) * 2017-11-15 2019-05-21 通用汽车环球科技运作有限责任公司 Line control brake system with piston tamper-resistant function
CN109774680B (en) * 2017-11-15 2021-07-09 通用汽车环球科技运作有限责任公司 Brake-by-wire system with piston anti-prying function
CN108032851A (en) * 2018-01-08 2018-05-15 吉林大学 A kind of brake pedal travel simulator and its control method
CN108032851B (en) * 2018-01-08 2024-01-02 吉林大学 Brake pedal stroke simulator and control method thereof
CN108394389A (en) * 2018-03-13 2018-08-14 安徽诺电动科技有限公司 A kind of electric sightseeing vehicle automatic emergency brake executive device
CN108394389B (en) * 2018-03-13 2023-08-04 安徽一诺电动科技有限公司 Automatic emergency braking execution device of electric sightseeing vehicle
CN110316170A (en) * 2019-07-19 2019-10-11 赵海荣 A kind of automobile brake aid-device of decoupling
CN110316171A (en) * 2019-07-19 2019-10-11 赵海荣 A kind of braking aid-device for automobile
CN110316361A (en) * 2019-07-19 2019-10-11 赵海荣 A kind of braking system of aircraft
CN110304033A (en) * 2019-07-19 2019-10-08 赵海荣 A kind of motorcar electric hydraulic braking aid-device
CN112124273A (en) * 2020-09-18 2020-12-25 东风商用车有限公司 Distribution control mechanism and method for compressed air for vehicle and vehicle
CN113264022A (en) * 2021-07-07 2021-08-17 中汽创智科技有限公司 Braking system with redundancy function
CN113264021A (en) * 2021-07-07 2021-08-17 中汽创智科技有限公司 Redundant brake unit and vehicle
CN114954642A (en) * 2022-05-19 2022-08-30 燕山大学 Mutually-redundant brake-by-wire steering system

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