CN206265023U - A kind of full decoupled type brakes with fail safe - Google Patents
A kind of full decoupled type brakes with fail safe Download PDFInfo
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- CN206265023U CN206265023U CN201621312756.0U CN201621312756U CN206265023U CN 206265023 U CN206265023 U CN 206265023U CN 201621312756 U CN201621312756 U CN 201621312756U CN 206265023 U CN206265023 U CN 206265023U
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- brake
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- master cylinder
- fail safe
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Abstract
The utility model discloses a kind of full decoupled type brakes with fail safe；Including hydraulic tank, master cylinder, hydraulic regulation dress and wheel cylinder；Two oil supplying holes of two outlet difference pipeline connection master cylinders of hydraulic tank, two outages of the master cylinder connect wheel cylinder by hydraulic regulating device respectively；Full decoupled type brakes with fail safe, also including brake pedal, brake pushrod, transmission mechanism and external power source；External power source is used to provide rotating torque to transmission mechanism；The side of brake pedal is provided with the pedal displacement sensor for judging total braking force demand.The system sets emergent fail-safe mechanism on the basis of mobile decoupling of the brake pedal with master cylinder is realized, while with preferably control flexibility, the effective safety and reliability for ensureing vehicle braking.
Description
Technical field
The utility model is related to automobile decoupling brake apparatus, more particularly to a kind of full decoupled type braking with fail safe
System.
Background technology
Traditional vacuum-assisted brake and electric booster braking system are using the power-assisted of pedal force and power source as input power
It is common to promote master cylinder, the decoupling of braking is not realized.Be coupled to pedal force in master cylinder by this force aid system, greatly
The big complexity that increased mechanical structure.And this system is also stricter to the control strategy of power-assisted.When driver misses
When stepping on brake pedal, pedal force can be also delivered in master cylinder, obvious braking effect occur, and driver does not brake now
It is intended to.
The content of the invention
The purpose of this utility model is the shortcoming and defect for overcoming above-mentioned prior art, there is provided a kind of simple structure, system
The full decoupled type brakes with fail safe of dynamic effect stability；Have the advantages that safe and reliable, noise is small and energy-conservation.
The utility model is achieved through the following technical solutions：
A kind of full decoupled type brakes with fail safe, including hydraulic tank 9, master cylinder 5, the and of hydraulic regulating device 8
Wheel cylinder 7；Two oil supplying holes 56,57 of two outlet difference pipeline connection master cylinders 5 of the hydraulic tank 9, two outages of the master cylinder 5
64th, 65 wheel cylinder 7 is connected by hydraulic regulating device 8 respectively；
The full decoupled type brakes with fail safe, also including brake pedal 1, brake pushrod 2, transmission mechanism
3 and external power source 4；
The external power source 4 is used to provide rotating torque to transmission mechanism 3；
The brake pedal 1 is flexibly connected brake pushrod 2, and the brake pushrod 2 is provided with baffle plate near this end of transmission mechanism 3
23, brake pushrod 2 passes through baffle plate 23；The back-moving spring 22 offseted with baffle plate 23 is arranged with the brake pushrod 2, when reciprocal
When trampling brake pedal 1, brake pushrod 2 is axially reciprocal motion；
The side of the brake pedal 1 is provided with the pedal displacement sensor 11 for judging total braking force demand.
The external power source 4 includes controller 42, hydraulic cavities 44 and normally closed solenoid valve 45；The inside of the hydraulic cavities 44 peace
Equipped with hydraulic pump 43, by its worm screw 41 by the torque output of hydraulic pump 43 to turbine 38, rotate turbine 38；
The turbine 38 and the common rotation of the first little gear 39 for being coaxial therewith installing, there is identical corner；Described 3rd
Middle gear 35 and the common rotation of third pinion 34 for being coaxial therewith installing, there is identical corner；The He of second gear wheel 33
The common rotation of the second little gear 32 installed is coaxial therewith, there is identical corner.
The transmission mechanism 3 include turbine 38 and be coaxial therewith installation the first little gear 39, the second gear wheel 33 and with
Its coaxial mounted second little gear 32, the 3rd middle gear 35 and be coaxial therewith install third pinion 34, the second tooth bar 31；
The first little gear 39 and between be provided with third pinion 34, the upper tooth of first tooth bar 36 engages the first little gear 39,
Lower tooth engages third pinion 34；The right-hand member of first tooth bar 36 connects the master cylinder push rod 37 of master cylinder 5；Second tooth bar 31
Upper tooth engage the second little gear 32, the left end of the second tooth bar 31 be provided with for detect the axial displacement of the second tooth bar 31 position
Displacement sensor 311, so as to will not be come in contact between brake pushrod 2 and transmission mechanism 3 during normal work, so as to realize braking solution
Coupling.
The hydraulic cavities 44 are connected by normally closed solenoid valve 45 with hydraulic tank 9；The controller 42 distinguishes telecommunication connection position
Displacement sensor 311, pedal displacement sensor 11, hydraulic pump 43 and normally closed solenoid valve 45；Controller 42 is sensed according to pedal displacement
The displacement of device 11, and then the compression hydraulic chamber 44 of hydraulic pump 43 is driven, and turbine 38 is output torque to by worm screw 41, make whirlpool
Wheel 38 is rotated.
The master cylinder 5 also includes master cylinder shell 51, the first feed flow chamber 52, the first brake chamber being arranged in master cylinder shell 51
54th, first piston 60, the second feed flow chamber 53, the second brake chamber 55, second piston 61.
The left end of the brake pushrod 2 is arranged with the fairlead 21 for providing guide effect for it.
Under normal circumstances, the utility model brake pedal force can't be delivered in master cylinder, the power output of external power source
Master cylinder is promoted as sole power.It forms three times faster than conventional system of the speed of brake pressure.Decoupled by braking, Ke Yishi
Present active brake, then under coordinating correlation displacement sensor, it is possible to achieve the additional function such as self-actuating brake, automatic parking.Pass through
The output power of external power source is adjusted, preferable brake pedal sense can be attained by various vehicles.Decoupling braking system
The brakes united as a new generation, will have the advantages that Conventional braking systems, while overcoming many Conventional braking systems
Shortcoming, with efficiency and faster response speed higher, can realize the actively additional function such as brake, while also having higher
Reliability and security.
In sum, the utility model at least possesses following advantage：Under normal circumstances, between brake pedal and master cylinder not
Contact, so the transmission without power, realizes decoupling.
The utility model uses external power source, and response is rapid, by adjusting external power source power output, can be in difference
Preferable brake pedal sense is reached in vehicle.
The utility model can in case of emergency realize actively brake by the decoupling between brake pedal and master cylinder,
The sensors such as radar for backing car can also be coordinated to realize the functions such as automatic parking.
The utility model increased the fail-safe mechanism of external power source.In the case where external power source fails, still
The power of brake pedal can be delivered in master cylinder by transmission mechanism.
The utility model simple structure, it is not necessary to change existing master cylinder arrangement.
The utility model technological means is simple and easy to do, possesses small noise, braking effect stabilization, energy-conservation, response rapidly, safely
Efficiently the advantages of.
Brief description of the drawings
Fig. 1 is full decoupled type brakes principle schematic of the utility model with fail safe.
Fig. 2 is full decoupled type brake system structure schematic diagram of the utility model with fail safe.
The coordinate of pedal displacement sensor 11 and displacement transducer 311 when Fig. 3 in the utility model control process to decouple
Figure.
Fig. 4 is pedal displacement sensor 11 and displacement transducer when external power source fails in the utility model control process
311 coordinate diagrams.
Specific embodiment
The utility model is more specifically described in detail with reference to specific embodiment.
Embodiment
As shown in Figures 1 to 4.The utility model discloses a kind of full decoupled type brakes with fail safe, including
Hydraulic tank 9, master cylinder 5, hydraulic regulating device 8 and wheel cylinder 7；Two confessions of two outlet difference pipeline connection master cylinders 5 of the hydraulic tank 9
Oilhole 56,57, two outages 64,65 of the master cylinder 5 connect wheel cylinder 7 by hydraulic regulating device 8 respectively；
The full decoupled type brakes with fail safe, also including brake pedal 1, brake pushrod 2, transmission mechanism
3 and external power source 4；
The external power source 4 is used to provide rotating torque to transmission mechanism 3；
The brake pedal 1 is flexibly connected brake pushrod 2, and the brake pushrod 2 is provided with baffle plate near this end of transmission mechanism 3
23, brake pushrod 2 passes through baffle plate 23；The back-moving spring 22 offseted with baffle plate 23 is arranged with the brake pushrod 2, when reciprocal
When trampling brake pedal 1, brake pushrod 2 is axially reciprocal motion；Back-moving spring 22 is used for mould to the reaction force of brake pedal 1
Intend brake pedal sense.
The side of the brake pedal 1 is provided with the pedal displacement sensor 11 for judging total braking force demand.
The external power source 4 includes controller 42, hydraulic cavities 44 and normally closed solenoid valve 45；The inside of the hydraulic cavities 44 peace
Equipped with hydraulic pump 43, rotate turbine 38 to turbine 38 torque output of hydraulic pump 43 by its worm screw 41 (non-self-lock-ing type)；
The turbine 38 and the common rotation of the first little gear 39 for being coaxial therewith installing, there is identical corner；Described 3rd
Middle gear 35 and the common rotation of third pinion 34 for being coaxial therewith installing, there is identical corner；The He of second gear wheel 33
The common rotation of the second little gear 32 installed is coaxial therewith, there is identical corner.
The transmission mechanism 3 include turbine 38 and be coaxial therewith installation the first little gear 39, the second gear wheel 33 and with
Its coaxial mounted second little gear 32, the 3rd middle gear 35 and be coaxial therewith install third pinion 34, the second tooth bar 31；
The first little gear 39 and between be provided with third pinion 34, the upper tooth of first tooth bar 36 engages the first little gear 39,
Lower tooth engages third pinion 34；The right-hand member of first tooth bar 36 connects the master cylinder push rod 37 of master cylinder 5；Second tooth bar 31
Upper tooth engage the second little gear 32, the left end of the second tooth bar 31 be provided with for detect the axial displacement of the second tooth bar 31 position
Displacement sensor 311, so as to will not be come in contact between brake pushrod 2 and transmission mechanism 3 during (external power source 4) normal work,
So as to realize braking decoupling.
The hydraulic cavities 44 are connected by normally closed solenoid valve 45 with hydraulic tank 9；The controller 42 distinguishes telecommunication connection position
Displacement sensor 311, pedal displacement sensor 11, hydraulic pump 43 and normally closed solenoid valve 45；Controller 42 is sensed according to pedal displacement
The displacement of device 11, and then the compression hydraulic chamber 44 of hydraulic pump 43 is driven, and turbine 38 is output torque to by worm screw 41, make whirlpool
Wheel 38 is rotated.
The master cylinder 5 also includes master cylinder shell 51, the first feed flow chamber 52, the first brake chamber being arranged in master cylinder shell 51
54th, first piston 60, the second feed flow chamber 53, the second brake chamber 55, second piston 61.
The left end of the brake pushrod 2 is arranged with the fairlead 21 for providing guide effect for it.
Utility model works principle is as follows：According to pedal displacement sensor 11 and displacement transducer 311 to external power
Source 4 applies control；1) during normal work, when driver's brake pedal, controller 42 controls the output of external power source 4
Power size causes the numerical value consistently greater than numerical value of pedal displacement sensor 11, i.e. brake pushrod 2 and driver of displacement transducer 311
Structure 3 keeps certain gap, and brake pedal force is not transferred in master cylinder 5, realizes braking decoupling；Increase external power source 4
Power output so that when the slope of curve of displacement transducer 311 is more than 11 slope of curve of pedal displacement sensor, less pedal force is just
The larger pressure of master cylinder 5 can be obtained, the comfortableness of braking is realized；Reduce the power output of external power source 4 so that displacement sensing
The slope of curve of device 311 be less than 11 slope of curve of pedal displacement sensor when, it is necessary to larger pedal force just can obtain identical
Master cylinder pressure, realizes the brake pedal sense of " hard "；2) when external power source 4 is because of malfunction and failure, driver's brake pedal
When, brake pushrod is moved toward the direction of transmission mechanism 3, and transmission mechanism 3 is motionless；When the second tooth bar 31 overcome with transmission mechanism 3 it
Between gap when, brake pushrod 2 promote transmission mechanism 3 move together, set up master cylinder pressure.
The decoupling method of full decoupled type brakes of the utility model with fail safe is as follows：
During normal work, brake pedal 1, the compression reseting spring 22 of brake pushrod 2, back-moving spring 22 is to brake pushrod
2 reaction force is used for simulating brake pedal sense；
Controller 42 draws the power requirement that external power source 4 should be exported according to pedal displacement sensor 11, and drives liquid
The compression hydraulic chamber 44 of press pump 43, power is exported by worm screw 41, then by turbine 38, the first little gear 39 and the first tooth bar 36
Upper tooth engagement is slowed down after increasing square, and by power-conversion for the first tooth bar 36 is axially moved power, the first tooth bar 36 promotes master cylinder push rod 37；
Master cylinder push rod 37 promotes first piston 60 and second piston 61 successively, and then compresses the He of 5 first feed flow chamber of master cylinder 52
Second feed flow chamber 53 is so as to set up master cylinder pressure；Hydraulic oil in hydraulic tank 9 is by outage 64,65 by hydraulic regulating device
8 inflow wheel cylinders 7 are braked；Due to there is gap between the tooth bar 31 of brake pushrod 2 and second, the first tooth bar 36 is by tooth in the 3rd
Wheel 35, third pinion 34, the second gear wheel 33 and the second little gear 32 drive the second tooth bar 31 to move together, cause braking to be stepped on
The power of plate 1 is not transferred on the second tooth bar 31, full decoupled between brake pedal 1 and master cylinder 5 so as to realize.
In addition, according to the requirement of relevant regulations, brakes must account for generation and some parts of failure conditions
When breaking down, it is also necessary to which the power that driver can be allowed to step on brake pedal is transferred in brakes, is braked.
Therefore the utility model increased fail safe scheme, i.e. when external power source 4 produces moment of torsion because failing to
When driving worm screw 41,38 and first tooth bar of turbine 36 to move, driver's brake pedal 1, when brake pushrod 2 overcomes and second
Behind gap between tooth bar 31, the second tooth bar 31 is by the power of brake pushrod 2 by the second little gear 32, the second gear wheel 33,
Three middle gears 35 and third pinion 34 pass to the first tooth bar 36, promote the first tooth bar 36 to advance, and are built by master cylinder push rod 37
Vertical master cylinder pressure.
As described above, just can preferably realize the utility model.
Implementation method of the present utility model is simultaneously not restricted to the described embodiments, and other are any without departing from of the present utility model
Spirit Essence and the change, modification, replacement made under principle, combine, simplify, should be equivalent substitute mode, being included in
Within protection domain of the present utility model.
Claims (6)
1. a kind of full decoupled type brakes with fail safe, including hydraulic tank (9), master cylinder (5), hydraulic regulating device
And wheel cylinder (7) (8)；Two oil supplying holes (56,57) of two outlets difference pipeline connection master cylinder (5) of the hydraulic tank (9), the master
Two outages (64,65) of cylinder (5) connect wheel cylinder (7) by hydraulic regulating device (8) respectively；It is characterized in that：
The full decoupled type brakes with fail safe, also including brake pedal (1), brake pushrod (2), transmission mechanism
And external power source (4) (3)；
The external power source (4) to transmission mechanism (3) for providing rotating torque；
The brake pedal (1) is flexibly connected brake pushrod (2), and the brake pushrod (2) is provided near transmission mechanism (3) this end
Baffle plate (23), brake pushrod (2) is through baffle plate (23)；It is arranged with the brake pushrod (2) and answering that baffle plate (23) offsets
Position spring (22), when back and forth brake pedal (1) is trampled, brake pushrod (2) is axially reciprocal motion；
The side of the brake pedal (1) is provided with the pedal displacement sensor (11) for judging total braking force demand.
2. the full decoupled type brakes with fail safe according to claim 1, it is characterised in that：The external power
Source (4) includes controller (42), hydraulic cavities (44) and normally closed solenoid valve (45)；Hydraulic pump is installed inside the hydraulic cavities (44)
(43) turbine (38), is given by the torque output of hydraulic pump (43) by its worm screw (41), turbine (38) is rotated；
The transmission mechanism (3) is including turbine (38) and is coaxial therewith the first little gear (39), the second gear wheel (33) installed
Be coaxial therewith install the second little gear (32), the 3rd middle gear (35) and be coaxial therewith installation third pinion (34),
Second tooth bar (31)；The first little gear (39) and between be provided with third pinion (34), the upper tooth of the first tooth bar (36) is nibbled
The first little gear (39) is closed, lower tooth engages third pinion (34)；The master of right-hand member connection master cylinder (5) of first tooth bar (36)
Cylinder push rod (37)；The upper tooth of second tooth bar (31) engages the second little gear (32), is set in the left end of the second tooth bar (31)
There is the displacement transducer (311) for detecting the second tooth bar (31) axial displacement, so that brake pushrod (2) and biography during normal work
Motivation structure will not come in contact between (3), so as to realize braking decoupling.
3. the full decoupled type brakes with fail safe according to claim 2, it is characterised in that：The hydraulic cavities
(44) it is connected with hydraulic tank (9) by normally closed solenoid valve (45)；Telecommunication connects displacement transducer to the controller (42) respectively
(311), pedal displacement sensor (11), hydraulic pump (43) and normally closed solenoid valve (45)；Controller (42) is passed according to pedal displacement
The displacement of sensor (11), and then hydraulic pump (43) compression hydraulic chamber (44) is driven, and output torque to by worm screw (41)
Turbine (38), rotates turbine (38).
4. the full decoupled type brakes with fail safe according to claim 2, it is characterised in that：The turbine (38)
The first little gear (39) common rotation with being coaxial therewith installing, there is identical corner；
3rd middle gear (35) and be coaxial therewith install third pinion (34) common rotation, have identical corner；
Second gear wheel (33) and be coaxial therewith install the second little gear (32) common rotation, have identical corner.
5. the full decoupled type brakes with fail safe according to any one of Claims 1-4, it is characterised in that：
The master cylinder (5) also includes master cylinder shell (51), the first feed flow chamber (52), the first brake chamber being arranged in master cylinder shell (51)
(54), first piston (60), the second feed flow chamber (53), the second brake chamber (55), second piston (61).
6. the full decoupled type brakes with fail safe according to claim 5, it is characterised in that：The brake pushrod
(2) left end is arranged with the fairlead (21) for providing guide effect for it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621312756.0U CN206265023U (en) | 2016-12-02 | 2016-12-02 | A kind of full decoupled type brakes with fail safe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621312756.0U CN206265023U (en) | 2016-12-02 | 2016-12-02 | A kind of full decoupled type brakes with fail safe |
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| Publication Number | Publication Date |
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| CN206265023U true CN206265023U (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621312756.0U Active CN206265023U (en) | 2016-12-02 | 2016-12-02 | A kind of full decoupled type brakes with fail safe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740761A (en) * | 2016-12-02 | 2017-05-31 | 华南理工大学 | A kind of full decoupled type brakes and control method with fail safe |
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2016
- 2016-12-02 CN CN201621312756.0U patent/CN206265023U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106740761A (en) * | 2016-12-02 | 2017-05-31 | 华南理工大学 | A kind of full decoupled type brakes and control method with fail safe |
| CN106740761B (en) * | 2016-12-02 | 2023-07-18 | 华南理工大学 | Completely decoupled braking system with failure protection and control method |
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