CN206579620U - The brake fluid system of motor control - Google Patents
The brake fluid system of motor control Download PDFInfo
- Publication number
- CN206579620U CN206579620U CN201720191984.5U CN201720191984U CN206579620U CN 206579620 U CN206579620 U CN 206579620U CN 201720191984 U CN201720191984 U CN 201720191984U CN 206579620 U CN206579620 U CN 206579620U
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- master cylinder
- push rod
- piston
- solenoid valve
- normally open
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- Regulating Braking Force (AREA)
Abstract
The utility model discloses the brake fluid system of motor control, it is intended to overcome that the sluggish influence that motor causes in commutation changes with brake pedal and cause with pedal force the problem of moving up and down, the utility model includes brake treadle mechanism, master cylinder pressure generation unit, braking pressure control unit and electronic control unit；Wherein：Brake treadle mechanism includes input push rod (6)；Master cylinder pressure generation unit includes ball screw framework；Braking pressure control unit includes master cylinder；Electronic control unit includes control signal output system and signal acquiring processing system.Brake treadle mechanism is fixedly connected by inputting push rod (6) with the input push rod limiting plate (21) in ball screw framework, master cylinder pressure generation unit is fixedly connected by the connecting shaft (25) in ball screw framework with the master cylinder ante-chamber piston (26) in master cylinder, and electronic control unit is connected with brake treadle mechanism, master cylinder pressure generation unit with braking pressure control unit electric wire respectively.
Description
Technical field
The utility model is related to a kind of brakes for belonging to automotive safety, more precisely, the utility model is related to one
Plant the brake fluid system of motor control.
Background technology
With continuing to develop for automobile industry, automobile items technology, which is obtained, constantly to be broken through and progressive.Auto brake system
The important and core united as automotive safety, particularly important effect is played to development of automobile and breakthrough.Auto brake system
System is continued to develop on the basis of conventional hydraulic braking towards line traffic control hydraulic braking.Conventional hydraulic brakes, which is mainly, to be passed through
There are larger deficiency vacuum booster power-assisted, response time and control accuracy to brake pressure；And volume ratio is huger,
Cost is higher.
I-Booster (integrated supercharging) system of Bosch is integrated with master cylinder by motor, passes through motor belt motor
The mechanisms such as dynamic ball-screw, drive input lever to move, the power collective effect that pedal force is produced with motor is defeated by ball-screw
Enter on bar, input lever and then promotion master cylinder piston complete the Stress control to brakes.I-Booster systems are by ABS, TCS
Take into account, can also be merged with regeneration brake system, by common with ESP system with the active safety technologies such as ESP
Work, can be in the Stress control under ABS, TCS, ESP and regenerative braking operating mode.
But, the supercharging decompression operation in i-Booster systems needs to come real by the rotation direction that motor changes motor
It is existing, so that the response time of brakes can be increased；Meanwhile, i-Booster systems when carrying out the operation such as ABS, TCS, ESP,
Brake pedal can be moved up and down with the pressure change of brakes, and driver can be generated a panic.
The content of the invention
Technical problem to be solved in the utility model is the sluggish influence in order to overcome motor to be caused in commutation, is overcome
Brake pedal with pedal force change and cause there is provided a kind of brake fluid system of motor control the problem of moving up and down.
In order to solve the above technical problems, the utility model adopts the following technical scheme that realization：Described motor control
Brake fluid system include brake treadle mechanism, master cylinder pressure generation unit and braking pressure control unit；
Described brake treadle mechanism includes input push rod；
Described master cylinder pressure generation unit includes ball screw framework；
Described braking pressure control unit includes master cylinder；
Described brake treadle mechanism is by inputting the right-hand member of push rod and the ball screw framework of master cylinder pressure generation unit
In the left surface of input push rod limiting plate be connected as a single entity, master cylinder pressure generation unit passes through the connecting shaft in ball screw framework
With being connected as a single entity at the Left-side center of the master cylinder ante-chamber piston in master cylinder.
Brake treadle mechanism described in technical scheme is also opened including brake pedal, pedal displacement sensor and brake actuating
Close；The top of described brake pedal is arranged on vehicle body to rotate connection, the upper end of brake pedal and the left end of input push rod
Connection is rotated, input push rod loads in the hollow gear shaft of master cylinder pressure generation unit, inputs the right-hand member of push rod from gear shaft
Stretched out in round tube hole at the gear ring center of right-hand member, pedal displacement sensor is arranged on the connection of input push rod and brake pedal
Place, brake actuating switch is installed in the lower section of brake pedal.
Master cylinder pressure generation unit described in technical scheme also includes motor, electric machine controller, gear train, planetary gear
Mechanism and planetary gears controller；Wherein：Gear train includes gear and gear；Described motor and electric machine controller electric wire
Connection, the output end of motor is fixedly connected by motor output shaft with gear, and gear is connected with gear engagement, and gear passes through hollow
Gear shaft be fixedly connected with the sun gear in planetary gears, planetary gears passes through gear ring therein and ball-screw
The left end of feed screw nut in mechanism is connected as a single entity, and planetary gears is connected with planetary gears controller electric wire.
Ball screw framework described in technical scheme also includes stroke return spring, feed screw nut, ball body, leading screw spiral shell
Bar, push rod output shaft, feed screw nut baffle plate and piston push rod；Described input push rod limiting plate is arranged on feed screw nut endoporus
Left end is is slidably connected, and the center of input push rod limiting plate right side is fixed with push rod output shaft, and feed screw nut baffle plate is installed
To be fixedly connected in the feed screw nut endoporus on the right side of input push rod limiting plate, during push rod output shaft is from feed screw nut baffle plate
Stretched out in heart through hole, stroke return spring is sleeved on the push rod output shaft between input push rod limiting plate and feed screw nut baffle plate
On, the left and right ends face of stroke return spring contacts company with input push rod limiting plate with the medial surface of feed screw nut baffle plate successively
Connect, leading screw screw rod is arranged in feed screw nut, and the left end of leading screw screw rod is sleeved on around push rod output shaft, and ball body is arranged on
Connected in track between leading screw screw rod and feed screw nut to rotate, the unlocked connection of the left end of piston push rod and connecting shaft, Gu
Surely the connecting shaft of piston push rod is connected with leading screw screw rod, is the company of slip between the endoporus of piston push rod and leading screw screw rod
Connect.
The rotation conllinear of piston push rod and push rod output shaft described in technical scheme, piston push rod is exported with push rod
There is gap between axle.
Braking pressure control unit described in technical scheme also include oil can, two-bit triplet magnetic valve, pressure sensor,
Solenoid valve controller, normally open solenoid valve, wheel cylinder and wheel speed sensors；Described two-bit triplet magnetic valve includes the first two-bit triplet
Magnetic valve, the second two-bit triplet magnetic valve；Described pressure sensor includes first pressure sensor, second pressure sensor；
Described normally open solenoid valve includes the first normally open solenoid valve, the second normally open solenoid valve, the 3rd normally open solenoid valve and the 4th normally opened electricity
Magnet valve；Described wheel cylinder includes the first wheel cylinder, the second wheel cylinder, third round cylinder, fourth round cylinder；Described oil can uses pipeline and system
The master cylinder ante-chamber of dynamic master cylinder is connected with the fluid infusion hole of master cylinder back cavity, and master cylinder ante-chamber uses pipeline and the first two-bit triplet magnetic valve
Mutually in succession, using pipeline and oil can mutually in succession, the first two-bit triplet is electric for another interface of the first two-bit triplet magnetic valve for one interface
3rd interface of magnet valve and the first normally open solenoid valve, the second normally open solenoid valve an interface pipeline in succession, the first normally open solenoid valve
Another interface and first round earthen pipe road in succession, another interface of the second normally open solenoid valve and the second wheel cylinder pipeline are in succession.It is described
Master cylinder back cavity using pipeline and the second two-bit triplet magnetic valve an interface mutually in succession, mutually in succession, the second two-bit triplet is electric for mouth
Another interface of magnet valve using pipeline and oil can phase in succession, the 3rd interface and the 3rd normally opened electromagnetism of the second two-bit triplet magnetic valve
Valve, the 4th normally open solenoid valve an interface pipeline in succession, another interface of the 3rd normally open solenoid valve with third round earthen pipe road in succession,
Another interface of 4th normally open solenoid valve and fourth round earthen pipe road are in succession；In the first two-bit triplet magnetic valve and the first normally opened electromagnetism
First pressure sensor is installed on the connecting line between valve and the second normally open solenoid valve；In the second two-bit triplet magnetic valve and
Second pressure sensor is installed on connecting line between 3rd normally open solenoid valve and the 4th normally open solenoid valve；Described wheel speed
Sensor is arranged on wheel, and solenoid valve controller and two-bit triplet magnetic valve are connected with normally open solenoid valve electric wire.
Master cylinder described in technical scheme includes No. 1 piston rod, No. 1 spring, No. 2 piston rods, No. 2 springs, master cylinders
Ante-chamber piston, master cylinder back cavity piston and Master cylinder body；Described master cylinder ante-chamber piston is arranged in Master cylinder body with master cylinder back cavity piston,
Master cylinder ante-chamber piston is located at the left side of master cylinder back cavity piston, is sliding between master cylinder ante-chamber piston and master cylinder back cavity piston and Master cylinder body
Dynamic connection；The right flank center of master cylinder ante-chamber piston is installed with No. 1 piston rod, and No. 1 upper cover of piston rod is equipped with No. 1 bullet
Spring, the left side of No. 1 spring contacts connection with the right side of master cylinder ante-chamber piston, and right side and the master cylinder back cavity of No. 1 spring are lived
The left side contact connection of plug, the right flank center of master cylinder back cavity piston is installed with No. 2 piston rods, No. 2 piston rods
Be set with No. 2 springs, the left sides of No. 2 springs contacts connection with the right side of master cylinder back cavity piston, the right side of No. 2 springs with
The interior side contacts connection of the right cylinder wall of Master cylinder body, the space shape in Master cylinder body between master cylinder ante-chamber piston and master cylinder back cavity piston
Into master cylinder ante-chamber, the space in the Master cylinder body between master cylinder back cavity piston and the right cylinder wall of Master cylinder body forms master cylinder back cavity.
The beneficial effects of the utility model are compared with prior art：
1. improve the response time of brakes.The brake fluid system of motor control described in the utility model is from mechanism
Upper use planetary gears control, can be each by changing sun gear, planetary gear, planet carrier and the gear ring of planetary gears
The synchronous regime of element, in the case where not changing motor speed, controls the rotation direction and state of gear ring, and then to braking system
System is pressurized, depressurized and the sequence of operations such as pressurize.
2. the brake fluid system of motor control described in the utility model is in active safety controls such as ABS, TCS, ESP
When, brake pedal will not be with the change in pressure of brakes.From structure, input lever and braking in brake pedal
There is certain interval between the piston push rod of master cylinder, the gap can exist always in electric braking normal work, meanwhile, input
Bar can produce good brake feel by compression spring；When electric braking fails, motor stalls, brake clearance is in pedal
It can be eliminated in the presence of power, meet the fail safe of brakes.
3. the brake fluid system of motor control described in the utility model, can when vehicle sections wheel cylinder is depressurized
The pressure of effective holding brakes.From structure, the brakes master cylinder with it is normally opened corresponding to four wheel cylinders
Two-bit triplet magnetic valve is added in the middle of magnetic valve, wheel cylinder is depressurized when part, when other wheel cylinders carry out pressurize, two-bit triplet
Magnetic valve can maintain the pressure of master cylinder, while only needing that the normally open solenoid valve corresponding to the wheel cylinder depressurized will be needed to switch
To conducting state, the high-voltage oil liquid of wheel cylinder reaches oil can through normally open solenoid valve, two-bit triplet magnetic valve.
Brief description of the drawings
The utility model is further described below in conjunction with the accompanying drawings：
Fig. 1 is the brake fluid system structural principle block diagram of motor control described in the utility model；
Fig. 2 is the brake fluid system mechanical part structure composition schematic diagram of motor control described in the utility model；
Fig. 3 is brake fluid system the near front wheel decompression signal under ABS operating modes of motor control described in the utility model
Figure；
Fig. 4 for motor control described in the utility model brake fluid system under TCS operating modes the near front wheel, off hind wheel it is same
When be pressurized or decompression schematic diagram；
Fig. 5 for motor control described in the utility model brake fluid system under TCS operating modes the near front wheel, off hind wheel protect
Press schematic diagram
Fig. 6 is brake clearance partial enlarged drawing in the brake fluid system of motor control described in the utility model；
Fig. 7-1 is planetary gears structure composition master in the brake fluid system of motor control described in the utility model
View；
Fig. 7-2 shows for planetary gears structural principle in the brake fluid system of motor control described in the utility model
It is intended to；
Wherein：1. brake pedal；2. motor；No. 3.1 gears；4. gear shaft；5. planetary gear；6. input push rod；7. stroke
Return spring；8. feed screw nut；9. ball body；10. leading screw screw rod；11. oil can；12.1 number piston rod；13.1 number spring；14.2
Number piston rod；15.2 number spring；16. pedal displacement sensor；17. motor output shaft；18.2 number gear；19. sun gear；20.
Gear ring；21. input push rod limiting plate；22. push rod output shaft；23. feed screw nut baffle plate；24. piston push rod；25. connecting shaft；
26. master cylinder ante-chamber piston；27. master cylinder ante-chamber；28. master cylinder back cavity piston；29. master cylinder back cavity；30. Master cylinder body；31. first pressure
Sensor；32. the first two-bit triplet magnetic valve；33. the second two-bit triplet magnetic valve；34. second pressure sensor；35. first
Normally open solenoid valve；36. the second normally open solenoid valve；37. the 3rd normally open solenoid valve；38. the 4th normally open solenoid valve；39. the first wheel cylinder；
40. the second wheel cylinder；41. third round cylinder；42. fourth round cylinder；201. gear ring brackets；501. planet carrier；502. planet carrier brackets；
C1. reversing clutch；C2. clutch is rotated forward；C3. slipping clutch；
Embodiment:
The utility model is explained in detail below in conjunction with the accompanying drawings：
Refering to Fig. 1, the brake fluid system of motor control described in the utility model includes brake treadle mechanism, master cylinder pressure
Power generation unit, braking pressure control unit and electronic control unit.
Described brake treadle mechanism includes brake pedal 1, input push rod 6, brake actuating switch and pedal displacement sensing
Device 16 etc..
The top of described brake pedal 1 is arranged on vehicle body to rotate connection, upper end and the input push rod of brake pedal 1
6 left end rotates connection, and input push rod 6 loads in the hollow gear shaft 4 of master cylinder pressure generation unit, inputs the right side of push rod 6
Hold and stretched out out of the center of gear ring 20 on the right side of gear shaft 4 round tube hole；Pedal displacement sensor 16 be arranged on input push rod 6 with
The junction of brake pedal 4, brake actuating switch is arranged on input push rod 6, when inputting push rod displacement overrate, meeting
Trigger brake actuating switch, pedal displacement sensor 16, brake actuating switch respectively with the signal acquisition of electronic control unit
System wires connection is managed, the signal acquiring processing system of electronic control unit is used to receive pedal displacement sensor 16 and braking is opened
The signal of dynamic switch；The displacement of input push rod 6 can start brake actuating switch, and brake actuating switch produces brake activation signals,
And brake activation signals are connected to the signal acquiring processing system for being sent to electronic control unit by circuit.
Described master cylinder pressure generation unit includes motor 2, electric machine controller, gear train, planetary gears, planet tooth
Take turns mechanics controller and ball screw framework etc..
Refering to Fig. 7, described planetary gears includes sun gear 19, planetary gear 5, planet carrier 501, gear ring 20, reversion
Clutch C1, rotating forward clutch C2 and slipping clutch C3.
The power resources of planetary gears are exported in sun gear 19 through gear ring 20.Planetary gears is main when working
There are three kinds of states, be respectively：
The first state：Sun gear 19, planet carrier 501, gear ring 20 are synchronous, gear ring 20 with the identical rotating speed of sun gear 19
It is equidirectional to rotate；
Second of state：Planet carrier 501 is fixed, and gear ring 20 is rotated with the direction opposite with sun gear 19；
The third state：Gear ring 20 is fixed, and sun gear 19 drives planetary gear 5 to rotate.
The state of above-mentioned planetary gears is controlled by planetary gears controller, planetary gears control
Device controls reversing clutch C1, rotates forward clutch C2, slipping clutch by receiving the control signal of electronic control unit
C3 state.
Refering to Fig. 7-2, the knot with two clutches can be realized on a gear ring bracket 201, gear ring bracket 201 by connecting outside gear ring 20
Close and separate, two clutches are respectively to rotate forward clutch C2, slipping clutch C3；Connect a planet carrier bracket outside planet carrier 501
502, planet carrier bracket 502 can realize and two clutches combination and separate, two clutches are respectively reversing clutch C1, just
Leave clutch C2.When reversing clutch C1 is combined, planet carrier 501 is locked, gear ring 20 with the opposite rotating speed side of sun gear 19
To rotation；When rotating forward clutch C2 is combined, planetary gears is locked, gear ring in the same direction, identical rotating speed with
Rotated with sun gear 19；When slipping clutch C3 is combined, gear ring 20 is fixed, stops externally output.Above-mentioned three kinds from
Clutch bonding state is by the control of planetary gears controller, according to the shape of each clutch of the signal deciding of electronic control unit
State.
Described gear train includes No. 1 gear 3 and 18, No. 1 gear 3 of No. 2 gears and No. 2 on the shaft end of motor output shaft 17
Gear 18 is located at the hollow two ends of gear shaft 4 respectively by gear external toothing, No. 2 gears 18 with sun gear 19；
Described planetary gears controller be located at each clutch (including rotate forward clutch C2, reversing clutch C1 and
Slipping clutch C3) it is internal, the combination and separation of above-mentioned each clutch are controlled by electric signal, the defeated of planetary gears is controlled
Do well；
Described ball screw framework also includes stroke return spring 7, feed screw nut 8, structure identical ball body 9, silk
Thick stick screw rod 10, input push rod limiting plate 21, push rod output shaft 22, feed screw nut baffle plate 23, piston push rod 24 and connecting shaft 25；
Described input push rod limiting plate 21 is arranged on the left end of the endoporus of feed screw nut 8 to be slidably connected, input push rod limit
The center of the position right side of plate 21 is fixed with push rod output shaft 22, and it is right that feed screw nut baffle plate 23 is arranged on input push rod limiting plate 21
To be fixedly connected in the endoporus of feed screw nut 8 of side, push rod output shaft 22 stretches out from the central through hole on feed screw nut baffle plate 23,
Stroke return spring 7 is sleeved on the push rod output shaft 22 between input push rod limiting plate 21 and feed screw nut baffle plate 23, stroke
The left and right ends face of return spring 7 contacts connection, silk with input push rod limiting plate 21 with the medial surface of feed screw nut baffle plate 23 successively
Thick stick screw rod 10 is arranged in feed screw nut 8,Structure identical ball body 9 is arranged between leading screw screw rod 10 and feed screw nut 8
To rotate connection, piston push rod 24 and the unlocked connection of left end of connecting shaft 25 in track, piston push rod 24 is fixedly connected with
Connecting shaft 25 is arranged in leading screw screw rod 10, is to be slidably connected between the endoporus of piston push rod 24 and leading screw screw rod 10.
Electric machine controller is by being electrically connected on motor 2, and motor 2 passes through machinery by mechanically connecting gear 3, gear 3
Planetary gears is connected, planetary gears is mechanically connected with planetary gears controller simultaneously, to determine planet tooth
The state of wheel construction.The output end (gear ring 20) of planetary gears is by being mechanically connected on ball screw framework, ball wire
Thick stick mechanism can control the displacement of brake master cylinder piston, so as to produce brake pressure.Above-mentioned electric machine controller passes through circuit and electricity
The control signal output system connection of sub-control unit.Above-mentioned planetary gears controller is also by circuit and electronics control
The control signal output system connection of unit processed.
Electric machine controller is located at motor internal, and the control signal output system of electronic control unit is connected to by circuit,
Electric machine controller is received after the control signal of control signal output system, passes through controlled motor current control motor speed；
Above-mentioned motor 2 is by motor controller controls, and when vehicle needs braking, electronic control unit can be according to each sensing
Device signal obtains the target braking force square of vehicle, and control signal is transferred into electric machine controller by circuit, and motor 2 is according to electricity
The control signal of machine controller is rotated with rotating speed of target.
Described braking pressure control unit include oil can 11, master cylinder, two-bit triplet magnetic valve, pressure sensor,
Solenoid valve controller, normally open solenoid valve, wheel cylinder and wheel speed sensors etc..
Described master cylinder is included before No. 1 piston rod 12, No. 1 spring 13, No. 2 piston rods 14, No. 2 springs 15, master cylinders
Chamber piston 26, master cylinder back cavity piston 28 and Master cylinder body 30；
Described master cylinder ante-chamber piston 26 is arranged in cylinder body 30 with master cylinder back cavity piston 28, and master cylinder ante-chamber piston 26 is located at
The left side of master cylinder back cavity piston 28, is to be slidably connected between master cylinder ante-chamber piston 26 and master cylinder back cavity piston 28 and cylinder body 30；
The right flank center of master cylinder ante-chamber piston 26 is installed with 12, No. 1 piston rod 12 of No. 1 piston rod and is set with
No. 1 spring 13.The left side of No. 1 spring 13 contacts connection, the right side of No. 1 spring 13 with the right side of master cylinder ante-chamber piston 26
Connection is contacted with the left side of master cylinder back cavity piston 28, the right side center of master cylinder back cavity piston 28 is installed with No. 2 work
The left side of 15, No. 2 springs 15 of No. 2 springs and the right side of master cylinder back cavity piston 28 are set with 14, No. 2 piston rods 14 of stopper rod
Contact connection, the right side of No. 2 springs 15 contacts connection with the medial surface of the right cylinder wall of Master cylinder body 30, master cylinder ante-chamber piston 26 and
Space in Master cylinder body 30 between master cylinder back cavity piston 28 forms master cylinder ante-chamber 27, master cylinder back cavity piston 28 and Master cylinder body 30
Space in Master cylinder body 30 between right cylinder wall forms master cylinder back cavity 29.
Described two-bit triplet magnetic valve includes the first two-bit triplet magnetic valve 32, the second two-bit triplet magnetic valve 33, the
One or two position-3-way solenoid valve 32 is identical with the structure of the second two-bit triplet magnetic valve 33, and two-bit triplet magnetic valve is used as brakes
Main thoroughfare, supercharging, decompression and pressurize for realizing brakes.
Described pressure sensor includes first pressure sensor 31, second pressure sensor 34, first pressure sensor
31 is identical with the structure of second pressure sensor 34, and pressure sensor is used for the brake pressure for detecting wheel cylinder in pressure process,
So as to ensure the good braking ability of brakes；
Described solenoid valve controller is used for the state of switching solenoid valve, the state of magnetic valve, including normally open solenoid valve
Open and close, the passage of two-bit triplet magnetic valve；
Described normally open solenoid valve includes the first normally open solenoid valve 35, the second normally open solenoid valve 36, the 3rd normally open solenoid valve
37 and the 4th normally open solenoid valve 38, the first normally open solenoid valve 35, the second normally open solenoid valve 36, the 3rd normally open solenoid valve 37 and the 4th
The structure of normally open solenoid valve 38 is identical, and normally open solenoid valve is used for supercharging, decompression and the pressurize for directly controlling brakes；
Described wheel cylinder includes the first wheel cylinder 39, the second wheel cylinder 40, third round cylinder 41 and fourth round cylinder 42, the first wheel cylinder
39th, the second wheel cylinder 40, third round cylinder 41 are identical with the structure of fourth round cylinder 42, by the pressure of wheel cylinder brake fluid, so as to realize car
Braking；
Described wheel speed sensors are Hall wheel speed sensors, by monitoring the rotating speed of wheel, the speed of estimation vehicle traveling
Degree, and determine whether whether vehicle needs the active brakes such as ABS, ESP；
Described oil can 11 is connected using pipeline and the master cylinder ante-chamber 27 of master cylinder with the fluid infusion hole of master cylinder back cavity 29, main
Cylinder ante-chamber 27 using pipeline and the first two-bit triplet magnetic valve 32 (A) interface phase in succession, the first two-bit triplet magnetic valve 32
Another (B) interface using the phase of pipeline and oil can 11 in succession, the 3rd (P) interface of the first two-bit triplet magnetic valve 32 and first normal
Open electromagnetic valve 35, the second normally open solenoid valve 36 (A) interface pipeline in succession, another (P) interface of the first normally open solenoid valve 35
With the pipeline of the first wheel cylinder 39 in succession, another (P) interface and the pipeline of the second wheel cylinder 40 of the second normally open solenoid valve 36 is in succession；
Described master cylinder back cavity 29 using pipeline and the second two-bit triplet magnetic valve 33 (A) interface phase in succession, second
Another (B) interface of two-bit triplet magnetic valve 33 using the phase of pipeline and oil can 11 in succession, the of the second two-bit triplet magnetic valve 33
Three (P) interfaces and the 3rd normally open solenoid valve 37, the 4th normally open solenoid valve 38 (A) interface pipeline in succession, the 3rd normally opened electromagnetism
Another (P) interface of valve 37 with the pipeline of third round cylinder 41 in succession, another (P) interface and the fourth round cylinder of the 4th normally open solenoid valve 38
42 pipelines are in succession；Company between the first two-bit triplet magnetic valve 32 and the first normally open solenoid valve 35 and the second normally open solenoid valve 36
Adapter is provided with first pressure sensor 31 on road；In the second two-bit triplet magnetic valve 33 and the 3rd normally open solenoid valve 37 and the 4th
Second pressure sensor 34 is installed on the connecting line between normally open solenoid valve 38.Described wheel speed sensors are arranged on wheel
Axletree on, described solenoid valve controller is integrated in an electromagnetic valve unit (HCU) with magnetic valve, solenoid valve controller
It is connected with two-bit triplet magnetic valve with normally open solenoid valve electric wire, wheel speed sensors, pressure sensor, solenoid valve controller and electronics
The annexation of control signal output system and signal acquiring processing system in control unit, i.e. wheel speed sensors, pressure are passed
Sensor is connected with the signal acquiring processing system in electronic control unit by circuit；Solenoid valve controller and Electronic Control list
Control signal output system in member is connected by circuit.
The master cylinder ante-chamber 27 of described master cylinder uses (A) interface phase for pipeline and the first two-bit triplet magnetic valve 32
In succession, the master cylinder back cavity 29 of master cylinder using pipeline and the second two-bit triplet magnetic valve 33 (A) interface phase in succession.First
Two-bit triplet magnetic valve 32 is in normal state (when powering off), and the normally open solenoid valve 35, second of master cylinder ante-chamber 27 and first is normally opened
Magnetic valve 36 is connected, and oil can 11 leads to the first normally open solenoid valve 35, the passage of the second normally open solenoid valve 36 disconnects；The first two
When three-way magnetic valve 32 is powered, the normally open solenoid valve 35 of master cylinder ante-chamber 27 and first, the passage of the second normally open solenoid valve 36 disconnect, the
One normally open solenoid valve 35, the passage of the second normally open solenoid valve 36 and oil can 11 are opened.Second two-bit triplet magnetic valve 33 is normal
Under state (when powering off), master cylinder back cavity 29 is connected with the 3rd normally open solenoid valve 37, the 4th normally open solenoid valve 38, and oil can 11 leads to
Passage toward the 3rd normally open solenoid valve 37, the 4th normally open solenoid valve 38 disconnects；When second two-bit triplet magnetic valve 33 is powered, master cylinder
The normally open solenoid valve 37 of back cavity 29 and the 3rd, the passage of the 4th normally open solenoid valve 38 disconnect, and the 3rd normally open solenoid valve the 37, the 4th is normally opened
The passage of magnetic valve 38 and oil can 11 is opened.
Refering to Fig. 2, the first normally open solenoid valve 35 is in the conduction state in normal condition (when powering off), the first two-bit triplet
The brake fluid that magnetic valve 32 flows out can reach the first wheel cylinder 39, similarly, the system of the first wheel cylinder 39 through the first normally open solenoid valve 35
Hydrodynamic can also reach the first two-bit triplet magnetic valve 32 through the first normally open solenoid valve 35, and its circulating direction is mainly normal by first
The pressure differential on the both sides of open electromagnetic valve 35 is determined.Second normally open solenoid valve 36 is in the conduction state in normal condition (when powering off),
The brake fluid of first two-bit triplet magnetic valve 32 outflow can reach the second wheel cylinder 40 through the second normally open solenoid valve 36, similarly, the
The brake fluid of two wheel cylinders 40 can also reach the first two-bit triplet magnetic valve 32, its circulating direction master through the second normally open solenoid valve 36
If being determined by the pressure differential on the both sides of the second normally open solenoid valve 36.
Refering to Fig. 2, the 3rd normally open solenoid valve 37 is in the conduction state in normal condition (when powering off), the second two-bit triplet
The brake fluid that magnetic valve 33 flows out can reach third round cylinder 41, similarly, the system of third round cylinder 41 through the 3rd normally open solenoid valve 37
Hydrodynamic can also reach the second two-bit triplet magnetic valve 33 through the 3rd normally open solenoid valve 37, and its circulating direction is mainly normal by the 3rd
The pressure differential on the both sides of open electromagnetic valve 37 is determined.4th normally open solenoid valve 38 is in the conduction state in normal condition (when powering off),
The brake fluid of second two-bit triplet magnetic valve 33 outflow can reach fourth round cylinder 42 through the 4th normally open solenoid valve 38, similarly, the
The brake fluid of four wheel cylinders 42 can also reach the second two-bit triplet magnetic valve 33, its circulating direction master through the 4th normally open solenoid valve 38
If being determined by the pressure differential on the both sides of the 4th normally open solenoid valve 38.
Above-mentioned wheel speed sensors are connected by the signal acquiring processing system of circuit and electronic control unit, above-mentioned pressure
Force snesor is connected by the signal acquiring processing system of circuit and electronic control unit, and solenoid valve controller passes through circuit and electricity
The control signal output system connection of sub-control unit.
Described electronic control unit includes central processing unit, power circuit, fault monitor module, control signal output system
System and signal acquiring processing system etc..
Central processing unit is connected by circuit with signal acquiring processing system, at the same central processing unit also can by circuit with
Fault monitor module is connected；Central processing unit is connected by circuit with control signal output system.Power circuit by circuit and
Signal acquiring processing system, control signal output system, fault monitor module and central processing unit are powered connection.
Described signal acquiring processing system be mainly reception from pressure sensor (including first pressure sensor 31,
Second pressure sensor 34), wheel speed sensors, motor speed sensor, brake actuating switch and pedal displacement sensor etc.
Signal, and above-mentioned signal is passed into central processing unit, central processing unit analyzes the state of vehicle according to each sensor signal,
And vehicle is controlled, control signal is transferred to control signal output system.The control of control signal output system output
Signal includes the control of the control signal, the control signal of planetary gears controller and electric machine controller of solenoid valve controller
Signal.
After driver's brake pedal 1, brake pedal 1 can promote input push rod 6, and pedal displacement sensor 16 can be supervised
Displacement and the speed of brake pedal 1 are surveyed, when reaching a certain threshold value, brake activation signals and pedal displacement signal can be delivered to
The signal acquiring processing system of electronic control unit, signal acquiring processing system transmits signals to central processing unit.Centre
Reason device can be made a policy according to the signal collected, and control signal is delivered into motor control by control signal output system
Device, planetary gears controller, come the rotating speed of controlled motor and the state of planetary gears.
When brakes needs pressurization, control signal can be delivered to electric machine controller, 2, motor by electronic control unit
Rotated according to control signal with rotating speed of target, motor 2 is rotated with moving gear 3, transfer power to planetary gears, planetary gear
Mechanism rotates forward clutch C2 and combined, by sun gear 19, planetary gear 5 and gear ring 20 according to the signal of planetary gears controller
Locked, gear ring 20 with the identical rotation direction of sun gear 19 to export, and gear ring 20 drives 8 turns of the feed screw nut of ball screw framework
It is dynamic.The rotary motion of feed screw nut 8 is converted into the linear motion of leading screw screw rod 10, silk by ball body 9 by ball screw framework
Thick stick screw rod 10 is by promoting master cylinder ante-chamber piston 26, and master cylinder ante-chamber 27 produces brake pressure, while the braking pressure of master cylinder ante-chamber 27
Power can promote master cylinder back cavity piston 28, and then master cylinder back cavity 29 can also produce brake pressure.
Master cylinder is produced after pressure, can be completed by reaching wheel cylinder after two-bit triplet magnetic valve, normally open solenoid valve
Braking to vehicle.In braking procedure, central processing unit can determine electricity according to pressure sensor, the signal of wheel speed sensors
The state of magnet valve, and solenoid valve controller is applied to by control signal output system, so as to complete to the accurate of brake pressure
Regulation.During braking, the fault monitor module of electronic control unit can monitor the shape of each circuit in brakes in real time
State, can pass to signal when detecting faulty circuit central processing unit, and central processing unit can be by display screen to driver
Give a warning, reduce or prevent because brakes is not normal and caused by loss.
Refering to Fig. 2, described motor 2 is used as the power source of system, the output end and motor output shaft 17 of described motor 2
Left end be fixedly connected, the right-hand member of motor output shaft 17 is fixedly connected with the gear 3 in gear train, in gear 3 and gear train
The engagement connection of gear 18, gear 18 is fixedly mounted on the left end of hollow gear shaft 4, and sun gear 19 is fixedly mounted on gear shaft 4
Right-hand member, sun gear 19 with around it planetary gear 5 engagement be connected, planetary gear 5 is connected with the internal messing of gear ring 20, gear ring 20 and silk
The left end of thick stick nut 8 is connected as a single entity, and feed screw nut baffle plate 23 is provided with feed screw nut 8.The circle centre position of gear ring 20 is provided with one
For installing the input round tube hole of push rod 6；
Input push rod 6 to be arranged in the endoporus of gear shaft 4, its left end is connected with brake pedal 1；Input push rod 6 with
The junction of brake pedal 4 is installed by one pedal displacement sensor 16.Input push rod 6 loads in the round tube hole of gear ring 20 and stretched
Go out, the right-hand member for inputting push rod 6 is connected as a single entity with inputting the left surface of push rod limiting plate 21；
The left end of the right flank and push rod output shaft 22 of input push rod limiting plate 21 is connected as a single entity.In input push rod limiting plate
Spring 7 is set with push rod output shaft 22 between 21 and feed screw nut baffle plate 23.Feed screw nut 8 passes through ball body 9 and leading screw
Screw rod 10 is connected, and leading screw screw rod 10 is hollow, and leading screw screw rod 10 is provided with piston push rod 24, piston push rod in hollow hole
24 have certain gap with push rod output shaft 22.Piston push rod 24 is connected as a single entity with connecting shaft 25, before connecting shaft 25 and master cylinder
It is connected as a single entity at the Left-side center of chamber piston 26；
The right flank center of master cylinder ante-chamber piston 26 is fixedly connected with 12, No. 1 piston rod 12 of No. 1 piston rod and is set with
No. 1 spring 13.The left end of No. 1 spring 13 contacts connection with the right side of master cylinder ante-chamber piston 26, the right-hand member of No. 1 spring 13 and master
The left side contact connection of cylinder back cavity piston 28, the right flank center of master cylinder back cavity piston 28 is fixedly connected with No. 2 piston rods
The left end that 15, No. 2 springs 15 of No. 2 springs are set with 14, No. 2 piston rods 14 contacts company with the right side of master cylinder back cavity piston 29
Connect, the right-hand member of No. 2 springs 15 is connected with the interior side contacts of the right-hand member wall in Master cylinder body 30.
Oil can 11 uses pipeline using pipeline and master cylinder ante-chamber 27, the fluid infusion hole connection of master cylinder back cavity 29, master cylinder ante-chamber 27
Connect company with an end interface of the first two-bit triplet magnetic valve 32.The original state of first two-bit triplet magnetic valve 32 is before master cylinder
The normally open solenoid valve 35 of chamber 27 and first, an end interface of the second normally open solenoid valve 36 connect company, the first two-bit triplet magnetic valve 32
Another state be connected with the pipeline of oil can 11 for one end interface；Master cylinder back cavity 29 passes through pipeline and the second two-bit triplet magnetic valve
33 end interface connects company.The original state of second two-bit triplet magnetic valve 33 is the normally open solenoid valve of master cylinder back cavity 29 and the 3rd
37th, an end interface of the 4th normally open solenoid valve 38 connects company, and another state of the second two-bit triplet magnetic valve 33 is one termination
Mouth is connected with oil can 11.The first two-bit triplet magnetic valve 32 and the first normally open solenoid valve 35 and the second normally open solenoid valve 36 it
Between connecting line on pressure sensor 31 is installed；In the second two-bit triplet magnetic valve 33 and the 3rd normally open solenoid valve 37 and
Pressure sensor 34 is installed on connecting line between four normally open solenoid valves 38.Another end interface of first normally open solenoid valve 35
It is connected using pipeline with the first wheel cylinder 39；Another end interface of second normally open solenoid valve 36 uses pipeline and the phase of the second wheel cylinder 40
Connection；Another end interface of 3rd normally open solenoid valve 37 is connected using pipeline with third round cylinder 41；4th normally open solenoid valve 38
Another end interface be connected using pipeline with fourth round cylinder 42.
There is certain gap between push rod output shaft 22 and piston push rod 24, the effect in the gap can be in motor control
During brake fluid system normal work, it is ensured that push rod output shaft 22 is not contacted with piston push rod 24, so as to be carried for driver
For good pedal sense；Meanwhile, in the brake fluid system failure of motor control, the gap can be eliminated, and driver steps on
Brake pedal is eliminated behind gap, can be by inputting push rod 6, input push rod limiting plate 21, push rod output shaft 22 and piston push rod 24
Contact, by promoting piston push rod 24, connecting shaft 25 to be applied on master cylinder ante-chamber piston 26, and then extrudes master cylinder ante-chamber 27 and main
Cylinder back cavity 29, completes failure braking.The effect of No. 1 piston rod 12 and No. 2 piston rods 14 is identical, the pipe being connected with master cylinder ante-chamber 27
When road or the pipeline leakage being connected with master cylinder back cavity 29, the displacement of master cylinder ante-chamber piston 26 is reduced during braking, it is ensured that
Good braking effect, especially in the case of braking of failing, more can effectively improve brake pressure, it is ensured that vehicle is good
Braking ability.Conventional brake below to vehicle, ABS, ESP specific work process are further discussed below.
Conventional brake：
After driver's brake pedal 1, brake pedal 1 promotes input push rod 6, and the input reach of push rod 6 drives input
Push rod limiting plate 21 moves forward, and then compression travel return spring 7, produces brake feel；Meanwhile, pedal displacement sensor 16 can be by
Pedal displacement is delivered to central processing unit, and central processing unit produces motor control signal and planetary gear machine according to sensor signal
The control signal of structure.Motor 2 is rotated with rotating speed of target, and band moving gear 3 is rotated, and gear 3 transfers power to gear 18, gear 18
Sun gear 19 is driven to rotate by gear shaft 4.Planetary gears locks planetary gears according to central processing unit signal
Extremely, gear ring 20 drives feed screw nut 8 to rotate, and feed screw nut 8 drives leading screw screw rod 10 to move forward by ball body 9, leading screw screw rod 10
Promote master cylinder ante-chamber piston 26 to move forward, produce brake pressure.The brake pressure of master cylinder ante-chamber 27 can promote master cylinder back cavity piston 28,
So as to which master cylinder back cavity 29 produces brake pressure.The brake fluid of master cylinder ante-chamber 27 is normal by the first two-bit triplet magnetic valve 32, first
Open electromagnetic valve 35 reaches the first wheel cylinder 39；Meanwhile, the brake fluid of master cylinder ante-chamber 27 passes through the first two-bit triplet magnetic valve 32, second
Normally open solenoid valve 36 reaches the second wheel cylinder 40.The brake fluid of master cylinder back cavity 29 is normal by the second two-bit triplet magnetic valve the 33, the 3rd
Open electromagnetic valve 37 reaches third round cylinder 41；Meanwhile, the brake fluid of master cylinder back cavity 29 passes through the second two-bit triplet magnetic valve the 33, the 4th
Normally open solenoid valve 38 reaches wheel cylinder 42.
After the completion of braking, driver can loosen brake pedal 1, and now inputting push rod 6 can move with after brake pedal, pedal position
Pedal displacement can be delivered to central processing unit by displacement sensor 16, and central processing unit produces motor control according to sensor signal to be believed
Number and planetary gears control signal.Motor 2 is rotated with rotating speed of target, and band moving gear 3 is rotated, and gear 3 transmits power
To gear 18, gear 18 drives sun gear 19 to rotate by gear shaft 4.Planetary gears, will according to central processing unit signal
Planet carrier is locked, and sun gear 19 is rotated with planetary gear 5, planetary gear 5 drive gear ring 20 with the opposite rotary speed direction of sun gear 19
Rotate, gear ring 20 drives feed screw nut 8 to rotate, feed screw nut 8 is driven by ball body 9 and moved after leading screw screw rod 10.In master cylinder pressure
Under the spring-force driven dual that the hydraulic coupling and master cylinder spring of strong production are produced, master cylinder ante-chamber piston 26, master cylinder back cavity piston can be promoted
Moved after 28.When braking elimination, leading screw screw rod 10 can be parked in initial position, now, master cylinder ante-chamber piston 26, master cylinder back cavity piston
28 can also rest on initial position, and oil can 11 is master cylinder ante-chamber 27, the fluid infusion of master cylinder back cavity 29, conventional brake process by fluid infusion hole
Complete.
Abs braking：
The slip rate of wheel is monitored during vehicle conventional brake by wheel speed sensors, when monitoring wheel slip exceedes thresholding
During value, into abs braking process.By the signal of each wheel speed sensors, central processing unit can carry out different decision-makings.When four cars
When the slip rate of wheel exceedes threshold value, central processing unit can send control to planetary gears controller, electric machine controller
Signal, motor 2 is rotated with rotating speed of target, and planetary gears is locked by planet carrier, the rotation direction of gear ring 20 and sun gear 19
Rotation direction is on the contrary, gear ring 20 drives feed screw nut 8 to rotate, and feed screw nut 8 is driven by ball body 9 and moved after leading screw screw rod 10.
Under the spring-force driven dual that the hydraulic coupling and master cylinder spring of master cylinder pressure strong production are produced, master cylinder ante-chamber piston 26, master cylinder can be promoted
Moved after back cavity piston 28.When wheel slip reaches target slip ratio, wheel speed sensors can pass to signal central control
Device, central controller can pass to control signal planetary gears controller, and gear ring 20 is locked, and planet carrier is around the sun
Wheel 19 is rotated.
Refering to Fig. 3 and Fig. 5, when wheel speed sensors monitor that some wheels (not all wheel) slip rate exceedes a certain thresholding
During value, brief analysis is carried out by taking the corresponding wheel of the first wheel cylinder 39 as an example.Now, central controller is by controlling planetary gear machine
Structure controller, solenoid valve controller reduce wheel slip.Planetary gears controller can control gear ring 20 locked, planet
Frame is rotated around sun gear 19；Solenoid valve controller can switch the first two-bit triplet magnetic valve 32, the second normally open solenoid valve 36,
Three normally open solenoid valves 37, the state of the 4th normally open solenoid valve 38, the second wheel cylinder 40, third round cylinder 41, the pressure of fourth round cylinder 42 are protected
Hold constant, the brake fluid of the first wheel cylinder 39 reaches oil can 11 through the first normally open solenoid valve 35, the first two-bit triplet magnetic valve 32.When
When wheel reaches target slip ratio, the first two-bit triplet magnetic valve 32, which can be powered off, returns to original state, the first normally open solenoid valve 35,
Second normally open solenoid valve 36, the 3rd normally open solenoid valve 37, the 4th normally open solenoid valve 38 are off under electromagnetic force,
Automobile enters ABS packing states, as shown in Figure 5.
ESP operating modes：
Refering to Fig. 4, it is necessary to be controlled in the case of not brake pedal to vehicle wheel rotational speed in vehicle traveling process
System.Vehicle is during acceleration or turning, it is necessary to be controlled to the slip rate of individual wheel, to need to control the first wheel cylinder
39th, exemplified by the wheel corresponding to fourth round cylinder 42.Now, electronic control unit can carry out decision-making according to wheel speed sensors, will control
Signal processed passes to electric machine controller, planetary gears controller, solenoid valve controller, and motor 2 is rotated with rotating speed of target, OK
Star gear mechanism is locked, and gear ring 20 with the identical direction of sun gear 19 to rotate, the first two-bit triplet magnetic valve 32, the second two
The power-off of three-way magnetic valve 33 is in original state, and the first normally open solenoid valve 35, the 4th normally open solenoid valve 38 are in initial turn-on shape
State, the second normally open solenoid valve 36, the 3rd normally open solenoid valve 37 are powered isolation, and the brake fluid of master cylinder ante-chamber 27 passes through the first two three
Three-way electromagnetic valve 32, the first normally open solenoid valve 35 reach the first wheel cylinder 39, and the brake fluid of master cylinder back cavity 29 passes through the second two-bit triplet
Magnetic valve 33, the 4th normally open solenoid valve 38 reach fourth round cylinder 42, complete the supercharging to the first wheel cylinder 39, fourth round cylinder 42
Journey.
Refering to Fig. 5, when the first wheel cylinder 39, fourth round cylinder 42 need pressurize, electronic control unit can control planetary gear
Mechanics controller, solenoid valve controller, gear ring in planetary gears 20 is locked, and planet carrier 501 is rotated around sun gear 19,
First two-bit triplet magnetic valve 32, the power-off of the second two-bit triplet magnetic valve 33 are in original state, the first normally open solenoid valve 35, the
Two normally open solenoid valves 36, the 3rd normally open solenoid valve 37, the 4th normally open solenoid valve 38 are in the presence of electromagnetic force in disconnection
State, now the first wheel cylinder 39, the brake pressure of fourth round cylinder 42 keep constant.
When the first wheel cylinder 39, wheel cylinder r42 need decompression, as shown in figure 5, electronic control unit can control planetary gear machine
Structure controller, solenoid valve controller, the planet carrier 501 of planetary gears is locked, the side opposite with sun gear 19 of gear ring 20
To rotation, move, moved after master cylinder ante-chamber piston 26, master cylinder back cavity piston 28 after leading screw screw rod 10, brake system pressure reduction.Work as system
It is dynamic when eliminating, as shown in Fig. 2 leading screw screw rod 10 returns to initial position, fluid infusion hole to master cylinder ante-chamber 27, the fluid infusion of master cylinder back cavity 29,
Two-bit triplet magnetic valve, normally open solenoid valve are in initial off-position, and braking procedure is completed.
The utility model is under the operating modes such as TCS, ESC, brake pedal of the brakes in supercharging, pressurize and decompression process
Displacement be always zero, driver can be avoided panic.
As shown in fig. 6, there is certain gap between push rod output shaft 22 and piston push rod 24 in above-mentioned brake clearance.
In braking procedure, while brake pedal 1 is moved, master cylinder ante-chamber piston 28 can drive piston push rod 24 to move, brake clearance meeting
Keep.
Failure braking：
When circuit breaks down, electric braking failure, motor 2 is stopped.When driver's brake pedal 1, push away
Bar output shaft 22 can be moved forward, with the movement of push rod output shaft 22, and brake clearance can be eliminated.Push rod output shaft 22 can be promoted
Piston push rod 24 is moved forward, and piston push rod 24 promotes master cylinder ante-chamber piston 26 to move, and master cylinder ante-chamber 27 sets up brake pressure；It is main
The pressure of cylinder ante-chamber 27 can promote master cylinder back cavity piston 28 to move, and then master cylinder back cavity 29 sets up pressure.Meanwhile, master cylinder ante-chamber 27
Brake fluid through the first two-bit triplet magnetic valve 32, the first normally open solenoid valve 35 reach the first wheel cylinder 39, the system of master cylinder ante-chamber 27
Hydrodynamic reaches the second wheel cylinder 40 through the first two-bit triplet magnetic valve, the second normally open solenoid valve 36.The brake fluid warp of master cylinder back cavity 29
Second two-bit triplet magnetic valve 33, the 3rd normally open solenoid valve 357 reach third round cylinder 41, and the brake fluid of master cylinder back cavity 29 is through second
Two-bit triplet magnetic valve, the 4th normally open solenoid valve 38 reach fourth round cylinder 42.So as to complete vehicle in the case of circuit malfunction
Braking.
It should be noted：
Fluid infusion hole has a certain distance from master cylinder ante-chamber piston 26, master cylinder back cavity piston 28, straight to supplement ABS decompressions
The brake fluid of the leakage in the liquid and brake piping of oil can 11 is taken back, prevents from causing vacuum.
Claims (7)
1. a kind of brake fluid system of motor control, it is characterised in that the brake fluid system of described motor control is also wrapped
Include brake treadle mechanism, master cylinder pressure generation unit and braking pressure control unit；
Described brake treadle mechanism includes input push rod (6)；
Described master cylinder pressure generation unit includes ball screw framework；
Described braking pressure control unit includes master cylinder；
Described brake treadle mechanism is by inputting in the right-hand member of push rod (6) and the ball screw framework of master cylinder pressure generation unit
The left surface of input push rod limiting plate (21) be connected as a single entity, master cylinder pressure generation unit passes through the connection in ball screw framework
Axle (25) at the Left-side center of the master cylinder ante-chamber piston (26) in the master cylinder of braking pressure control unit with being connected as a single entity.
2. according to the brake fluid system of the motor control described in claim 1, it is characterised in that described brake treadle mechanism
Also include brake pedal (1), pedal displacement sensor (16) and brake actuating switch；
The top of described brake pedal (1) is arranged on vehicle body to rotate connection, upper end and the input push rod of brake pedal (1)
(6) left end rotates connection, and input push rod (6) loads in the hollow gear shaft (4) of master cylinder pressure generation unit, inputs push rod
(6) right-hand member is stretched out out of gear ring (20) center of gear shaft (4) right-hand member round tube hole, and pedal displacement sensor (16) is installed
In the junction of input push rod (6) and brake pedal (1), brake actuating switch is installed in the lower section of brake pedal (1).
3. according to the brake fluid system of the motor control described in claim 1, it is characterised in that described master cylinder pressure is produced
Unit also includes motor (2), electric machine controller, gear train, planetary gears and planetary gears controller；Wherein：Tooth
Wheel group includes gear (3) and gear (18)；
Described motor (2) is connected with electric machine controller electric wire, and the output end of motor (2) passes through motor output shaft (17) and gear
(3) it is fixedly connected, gear (3) is connected with gear (18) engagement, and gear (18) passes through hollow gear shaft (4) and planetary gear machine
Sun gear (19) in structure is fixedly connected, and planetary gears passes through the leading screw in gear ring therein (20) and ball screw framework
The left end of nut (8) is connected as a single entity, and planetary gears is connected with planetary gears controller electric wire.
4. according to the brake fluid system of the motor control described in claim 1 or 3, it is characterised in that described ball-screw
Mechanism also include stroke return spring (7), feed screw nut (8), ball body (9), leading screw screw rod (10), push rod output shaft (22),
Feed screw nut baffle plate (23) and piston push rod (24)；
Described input push rod limiting plate (21) is arranged on the left end of feed screw nut (8) endoporus to be slidably connected, input push rod limit
The center of position plate (21) right side is fixed with push rod output shaft (22), and it is spacing that feed screw nut baffle plate (23) is arranged on input push rod
To be fixedly connected in feed screw nut (8) endoporus on the right side of plate (21), push rod output shaft (22) is from feed screw nut baffle plate (23)
Stretched out in central through hole, stroke return spring (7) is sleeved between input push rod limiting plate (21) and feed screw nut baffle plate (23)
Push rod output shaft (22) on, the left and right ends face of stroke return spring (7) successively with input push rod limiting plate (21) and leading screw
The medial surface contact connection of nut baffle plate (23), leading screw screw rod (10) is arranged in feed screw nut (8), a left side for leading screw screw rod (10)
End is sleeved on around push rod output shaft (22), and ball body (9) is arranged on the rail between leading screw screw rod (10) and feed screw nut (8)
To rotate connection, piston push rod (24) and the unlocked connection of left end of connecting shaft (25) in road, piston push rod is fixedly connected with
(24) connecting shaft (25) is arranged in leading screw screw rod (10), is sliding between the endoporus of piston push rod (24) and leading screw screw rod (10)
Dynamic connection.
5. according to the brake fluid system of the motor control described in claim 4, it is characterised in that described piston push rod (24)
With the rotation conllinear of push rod output shaft (22), there is gap between piston push rod (24) and push rod output shaft (22).
6. according to the brake fluid system of the motor control described in claim 1, it is characterised in that described braking pressure control
Unit also includes oil can (11), two-bit triplet magnetic valve, pressure sensor, solenoid valve controller, normally open solenoid valve, wheel cylinder and wheel
Fast sensor；
Described two-bit triplet magnetic valve includes the first two-bit triplet magnetic valve (32), the second two-bit triplet magnetic valve (33)；
Described pressure sensor includes first pressure sensor (31), second pressure sensor (34)；
Described normally open solenoid valve includes the first normally open solenoid valve (35), the second normally open solenoid valve (36), the 3rd normally open solenoid valve
(37) with the 4th normally open solenoid valve (38)；
Described wheel cylinder includes the first wheel cylinder (39), the second wheel cylinder (40), third round cylinder (41), fourth round cylinder (42)；
Described oil can (11) is connected using the master cylinder ante-chamber (27) of pipeline and master cylinder with the fluid infusion hole of master cylinder back cavity (29),
Master cylinder ante-chamber (27) using pipeline and the first two-bit triplet magnetic valve (32) interface phase in succession, the first two-bit triplet magnetic valve
(32) another interface using pipeline and oil can (11) phase in succession, the 3rd interface and first of the first two-bit triplet magnetic valve (32)
Normally open solenoid valve (35), the second normally open solenoid valve (36) an interface pipeline in succession, another the connecing of the first normally open solenoid valve (35)
With the first wheel cylinder (39) pipeline in succession, another interface and the second wheel cylinder (40) pipeline of the second normally open solenoid valve (36) are in succession for mouth；
Described master cylinder back cavity (29) using pipeline and the second two-bit triplet magnetic valve (33) interface phase in succession, the second two
Another interface of three-way magnetic valve (33) using pipeline and oil can (11) phase in succession, the 3rd of the second two-bit triplet magnetic valve (33) the
Interface and the 3rd normally open solenoid valve (37), the 4th normally open solenoid valve (38) an interface pipeline in succession, the 3rd normally open solenoid valve
(37) another interface with third round cylinder (41) pipeline in succession, another interface and the fourth round cylinder of the 4th normally open solenoid valve (38)
(42) pipeline is in succession；In the first two-bit triplet magnetic valve (32) and the first normally open solenoid valve (35) and the second normally open solenoid valve (36)
Between connecting line on first pressure sensor (31) is installed；In the second two-bit triplet magnetic valve (33) and the 3rd normally opened electricity
Second pressure sensor (34) is installed on connecting line between magnet valve (37) and the 4th normally open solenoid valve (38)；Described wheel
Fast sensor is arranged on wheel, and solenoid valve controller and two-bit triplet magnetic valve are connected with normally open solenoid valve electric wire.
7. according to the brake fluid system of the motor control described in claim 1 or 6, it is characterised in that described master cylinder
Including No. 1 piston rod (12), No. 1 spring (13), No. 2 piston rods (14), No. 2 springs (15), master cylinder ante-chamber piston (26), master cylinders
Back cavity piston (28) and Master cylinder body (30)；
Described master cylinder ante-chamber piston (26) is arranged in Master cylinder body (30) with master cylinder back cavity piston (28), master cylinder ante-chamber piston
(26) it is located at the left side of master cylinder back cavity piston (28), master cylinder ante-chamber piston (26) and master cylinder back cavity piston (28) and Master cylinder body (30)
Between to be slidably connected；
The right flank center of master cylinder ante-chamber piston (26) is installed with No. 1 piston rod (12), No. 1 piston rod (12) and is set with
There is No. 1 spring (13), the left side of No. 1 spring (13) contacts connection, No. 1 spring with the right side of master cylinder ante-chamber piston (26)
(13) right side contacts connection, the right flank center of master cylinder back cavity piston (28) with the left side of master cylinder back cavity piston (28)
It is installed with No. 2 piston rods (14), No. 2 piston rods (14) and is set with No. 2 springs (15), the left side of No. 2 springs (15)
Connection, the right side of No. 2 springs (15) and the right cylinder wall of Master cylinder body (30) are contacted with the right side of master cylinder back cavity piston (28)
Interior side contacts are connected, and the space in Master cylinder body (30) between master cylinder ante-chamber piston (26) and master cylinder back cavity piston (28) forms master
The space in Master cylinder body (30) between the right cylinder wall of cylinder ante-chamber (27), master cylinder back cavity piston (28) and Master cylinder body (30) forms master
Cylinder back cavity (29).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720191984.5U CN206579620U (en) | 2017-03-01 | 2017-03-01 | The brake fluid system of motor control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720191984.5U CN206579620U (en) | 2017-03-01 | 2017-03-01 | The brake fluid system of motor control |
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| Publication Number | Publication Date |
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| CN206579620U true CN206579620U (en) | 2017-10-24 |
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ID=60092002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201720191984.5U Withdrawn - After Issue CN206579620U (en) | 2017-03-01 | 2017-03-01 | The brake fluid system of motor control |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107054333A (en) * | 2017-03-01 | 2017-08-18 | 吉林大学 | The brake fluid system of motor control |
| CN110562228A (en) * | 2019-09-10 | 2019-12-13 | 武汉理工大学 | Electric hydraulic power-assisted brake system of automobile |
| CN114194318A (en) * | 2020-09-18 | 2022-03-18 | 彦豪金属工业股份有限公司 | Fluid pressure sensing device and anti-lock brake assembly |
-
2017
- 2017-03-01 CN CN201720191984.5U patent/CN206579620U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107054333A (en) * | 2017-03-01 | 2017-08-18 | 吉林大学 | The brake fluid system of motor control |
| CN107054333B (en) * | 2017-03-01 | 2018-07-20 | 吉林大学 | The brake fluid system of motor control |
| CN110562228A (en) * | 2019-09-10 | 2019-12-13 | 武汉理工大学 | Electric hydraulic power-assisted brake system of automobile |
| CN114194318A (en) * | 2020-09-18 | 2022-03-18 | 彦豪金属工业股份有限公司 | Fluid pressure sensing device and anti-lock brake assembly |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171024 Effective date of abandoning: 20180720 |