CN107435699B - A kind of floating caliper type disc brake-by-wire device and control method - Google Patents
A kind of floating caliper type disc brake-by-wire device and control method Download PDFInfo
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- CN107435699B CN107435699B CN201710536656.9A CN201710536656A CN107435699B CN 107435699 B CN107435699 B CN 107435699B CN 201710536656 A CN201710536656 A CN 201710536656A CN 107435699 B CN107435699 B CN 107435699B
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- way clutch
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- 238000007667 floating Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 230000005540 biological transmission Effects 0.000 claims abstract description 39
- 230000000694 effects Effects 0.000 claims abstract description 19
- 230000033001 locomotion Effects 0.000 claims description 30
- 238000005381 potential energy Methods 0.000 claims description 19
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 238000005299 abrasion Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 20
- 230000005489 elastic deformation Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/38—Slack adjusters
- F16D65/40—Slack adjusters mechanical
- F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
- F16D65/56—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut
- F16D65/567—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut for mounting on a disc brake
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/24—Electric or magnetic using motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/34—Mechanical mechanisms converting rotation to linear movement or vice versa acting in the direction of the axis of rotation
- F16D2125/40—Screw-and-nut
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2127/00—Auxiliary mechanisms
- F16D2127/06—Locking mechanisms, e.g. acting on actuators, on release mechanisms or on force transmission mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The present invention relates to a kind of floating caliper type disc brake-by-wire device and control method, including motor, transmission mechanism, one-way clutch, nut, screw rod, piston, friction limiting devices etc..Motor drives the outer ring of one-way clutch to rotate by transmission mechanism, one-way clutch drives nut rotation, piston and braking clamp body are respectively driven by thread transmission to move in the opposite direction, and friction plate is compressed from brake disc two sides with identical power, realizes efficient braking effect.The configuration of the present invention is simple, reliable operation, braking efficiency is high, can automatically adjust brake clearance, and compensation is influenced as caused by friction disc wear, the design of simplified control system can be used for service brake and parking braking.
Description
Technical field
The present invention relates to brake fields, existing floating caliper type disc liquid braking device can be specifically replaced, with automatically controlled machine
The mode of tool realizes that friction plate clamps brake disc from two sides with identical pressure, while it is adjustable to may be implemented brake clearance, braking
The adjustable line traffic control mechanical brake of intensity refers in particular to a kind of floating caliper type disc brake-by-wire device and control method.
Background technique
Brake-by-wire technology is a kind of novel braking technology occurred in recent years, between brake and brake pedal not
It is realized by the information control motor work of control system receiving sensor for automobile by mechanical or fluid power connection
Reliable and stable control for brake.Mainly there are electro-hydraulic formula braking system (EHB) and mechanical type brake system electric at present
(EMB) two kinds.Line control brake system is conducive to the optimization of braking performance of vehicle, can be easily other with ABS, ASR, ESP etc.
Electronic control system combines, therefore has wide development space.
For electro-hydraulic formula braking system (EHB) from traditional brake fluid system transformation, braking process is rapider,
Stablize, improves the braking safety and comfort of automobile, but due to remaining hydraulic unit, do not have complete brake-by-wire
The all advantages of system are often viewed as the earlier product of one kind of mechanical type brake system electric (EMB).
Mechanical type brake system electric (EMB) realizes braking process by motor drive machinery mechanism, enormously simplifies system
The structure of dynamic system, makes brake more easily arrange, assemble and overhauls.But existing mechanical type brake system electric due to
Often lack the function of brake clearance automatic adjustment in part brake, makes brake in external environmental change and friction plate
The problem for causing brake actuator efficiency change indefinite in the case where abrasion, to bring certain be stranded to brake efficiency control
It is difficult.Meanwhile the problems such as that there are structures is more complicated for most of brake, and installation dimension is larger.
Summary of the invention
It is an object of the invention to propose a kind of floating caliper type disc brake-by-wire device and control method.The present invention has structure letter
It is single, the advantages that reliable operation, can be realized the automatic adjustment of brake clearance, by detect friction plate driving mechanism displacement or
Corner can convert and obtain braking clamping force size, to enable the corresponding simplification of control system.
Realize that the technical solution of the object of the invention is as follows:
It include motor, transmission mechanism, one-way clutch, nut, screw rod, work equipped with a kind of floating caliper type disc brake-by-wire device
Plug, rub limiting device, piston positioning means, braking clamp body, brake disc, friction plate；The nut support is in the system
On moving caliper, the nut is in the axial direction without relative motion between the braking clamp body；The friction plate has
Two panels is arranged symmetrically in the brake disc two sides, and one is mounted on the piston, and one is mounted on the braking
On caliper；The piston is mounted on the braking clamp body via the friction limiting device, the piston positioning
Device move back and forth piston can only in axis direction, can not rotate；The piston is fixedly connected with the screw rod, institute
The screw rod and the nut stated cooperate；Inner ring of the outer surface of the nut as the one-way clutch, it is described
The outer ring of one-way clutch is fixedly connected with the final element of the transmission mechanism；The final element of the transmission mechanism
Movement, drives the one-way clutch outer ring to rotate, and one-way clutch combines, and when the nut being driven to rotate, passes through institute
The screw rod stated pushes the piston movement, the braking clamp body and the nut to the side opposite with the piston
To movement, drive the friction plate from brake disc described in two side compressions；The motor connection transmission mechanism
Input element；Described friction limiting device a part is fixedly mounted on the braking clamp body, another part and described
There is biggish frictional force between outer surface of piston, when having relative displacement between the piston and the braking clamp body, due to
Frictional force effect makes to generate elastic potential energy in the friction limiting device；
When braking, the motor is moved via the transmission mechanism driving one-way clutch outer ring, unidirectionally
Clutch combines, and the nut is driven to rotate, and drives the piston and the braking clamp body point by the screw rod
It does not move in the opposite direction, the friction plate is made to be pressed on the brake disc two sides, obtain the braking effect of high efficient and reliable
Fruit generates in the friction limiting device at this point, having relative displacement between the piston and the braking clamp body
Elastic potential energy；When releasing braking, the motor is anti-via the transmission mechanism driving one-way clutch outer ring
To movement, one-way clutch is separated, and the elastic potential energy effect inside the friction limiting device makes the piston and institute
The braking clamp body relative motion stated restores initial position, and the nut rotation described at this time is to adapt to the piston and described
The relative motion of braking clamp body；
When the friction plate have abrasion, thickness it is thinning after, when braking operation, the motor is via the driver
The structure driving one-way clutch combines, and drives the nut to rotate, makes the piston and the braking clamp body phase
To movement, elastic potential energy reaches maximum in the friction limiting device, and since friction plate is thinning, braking effect is bad, at this time
The motor works on, and the nut is driven to continue to rotate, and overcomes the outer surface of the piston and the friction
Frictional force between limiting device makes the piston and the braking clamp body continue to relatively move, and compresses brake disc, obtains
To reliable efficient braking effect；When releasing braking, the elastic potential energy in the friction limiting device is acted on, and is made described
Piston and the braking clamp body relative motion, the piston is with the friction limiting device with new contact position at this time
It sets relatively fixed, realizes the adjust automatically of brake clearance.
It further include, to reduce frictional resistance, being improved using circulation spherical structure between the nut and the screw rod
System working efficiency.
It further include increasing transmission system between the one-way clutch and the nut.
It further include by the inner ring of the final element connection of the transmission mechanism one-way clutch, the nut
The outer ring of the connection one-way clutch, when braking operation, the one-way clutch is combined, described when releasing braking
One-way clutch separation.
When the transmission link for being zero without reverse efficiency in the transmission mechanism or the transmission system, using locking machine
Structure realizes the parking braking under the motor power blackout situation, and the lockable mechanism uses electromagnetic brake or electric-controlled mechanical
Brake apparatus, can actuated element when being powered when release, power-off in fixed conveyor link, keep the friction plate and
The size of pressure between the brake disc realizes parking braking function；When in the transmission mechanism or the transmission system
When being provided with the transmission link that reverse efficiency is zero, it can use the lockable mechanism and realize parking braking, also can use inverse
Efficiency is zero, power and movement can not back transfer, realize the parking braking under the motor power blackout situation.
A kind of floating caliper type disc brake-by-wire device control method, which is characterized in that use floating caliper type disc brake-by-wire above-mentioned
Device, when method comprises the steps of: braking operation, the motor drives the transmission mechanism work, it is described it is unidirectional from
Clutch combines, and the nut is driven to rotate, and drives the piston and the braking clamp body mobile, makes the friction
Piece compresses the brake disc two sides, the rotation information of the electronic control unit detection nut, in conjunction with the electric current of the motor
Size calculates braking clamping force；When the friction disc wear, the electronic control unit control motor rotation is to compensate mill
It is influenced caused by damage.
Detailed description of the invention
Fig. 1 is a kind of main view of the embodiment one of floating caliper type disc brake-by-wire device of the invention.
Fig. 2 is a kind of A direction view of the embodiment one of floating caliper type disc brake-by-wire device of the invention.
Fig. 3 is a kind of main view of the embodiment two of floating caliper type disc brake-by-wire device of the invention.
Fig. 4 is a kind of main view of the embodiment three of floating caliper type disc brake-by-wire device of the invention.
Explanation: 1- brake-caliper support 2- guide pin 3- braking clamp body 4- target disc 5- nut 6- worm gear is marked in attached drawing
7- one-way clutch 8- worm screw 9- sealing ring 10- dive key 11- piston 12- friction plate 13-brake disc 14- motor
15- sensor 16- cylindrical roller 17- spring 18- snap ring 19- motor shaft 20-electromagnetic brake 21- primary driving tooth
Take turns grade driving gear 24- times of 22- primary driven gear 23- times grade driven gear 25- electromagnetic coil 26- return spring
27- lock pin 28- tapered roller bearing 29- screw rod
Specific embodiment
With reference to attached drawing 1 and attached drawing 2, one embodiment of the present of invention is described in detail.
As depicted in figs. 1 and 2, a kind of floating caliper type disc brake-by-wire device includes one and can move on guide pin (2)
Braking clamp body (3), guide pin (2) are fixed on brake-caliper support (1).There are brake disc (13) in the jaw of braking clamp body (3),
The two sides of brake disc (13) have friction plate (12), and one is mounted on braking clamp body (3), and one is mounted on piston (11), piston
(11) through dive key (10) and sealing ring (9) on braking clamp body (3), dive key (10) makes piston (11) can only
It moves, is not able to rotate in the axial direction, have biggish frictional force between sealing ring (9) and the contact surface of piston (11), work as piston
(11) when displacement is in the regime of elastic deformation of sealing ring (9), without opposite between sealing ring (9) and the contact surface of piston (11)
Movement.Nut (5) is supported on braking clamp body (3) by tapered roller bearing (28).One end of piston (11) is installed by friction plate
(12), screw rod (29) are fixedly mounted in the other end, and screw rod (29) and nut (5) cooperate.The outer surface of nut (5) as unidirectionally from
The inner ring of clutch (7), the outer ring of one-way clutch (7) are fixedly connected with the worm gear (6) in Worm and worm-wheel gearing, worm screw
(8) it is connected with the output shaft of motor (14).
When braking operation, motor (14) drives worm screw (8) rotation, drives worm gear (6) underdrive, at this time one-way clutch
Device (7) combines, and drives nut (5) rotation, since piston (11) can not rotate, the screw rod (29) that is fixedly connected with piston (11)
Also can not rotate, therefore when one-way clutch (7) combine and drive nut (5) rotation, piston (11) and braking clamp body (3) to
Opposite direction is mobile, drives corresponding friction plate (12) to be forced from two sides with identical to brake disc (13), realization efficiently may be used
The braking effect leaned on.At this point, flexible deformation occurs for sealing ring (9), elastic potential energy is stored, sealing ring (9) and piston (11) connect
Without relative motion between contacting surface.When releasing braking operation, motor (14) drives worm screw (8) to rotate backward, and driving worm gear (6) is also anti-
To rotation, at this point, one-way clutch (7) separates, nut (5) is in free state, and the elastic potential energy of sealing ring (9) storage is released
It puts, makes piston (11) and braking clamp body (3) relative motion, drive nut (5) under the elastic potential energy effect in sealing ring (9)
It reversely rotates, all elements restore initial position.
When friction plate (12) are worn, after thickness is thinning, when braking operation, motor (14) passes through worm screw (8), worm gear (6) band
Dynamic one-way clutch (7) combine, and driving nut (5) rotation pushes piston (11) and braking clamp body (3) relative motion, sealing ring
(9) when elastic deformation amount reaches maximum, since friction plate (12) are worn, braking effect is bad, and motor (14) continues to lead at this time
Cross one-way clutch (7) driving nut (5) rotation combined, i.e. piston (11) and braking clamp body (3) continues relative motion, because
This, sealing ring (9) keeps maximum flexibility deflection, and piston (11) overcomes the frictional force between sealing ring (9), with new
Contact surface is matched with sealing ring (9), i.e., piston (11) relative to braking clamp body (3) displacement be greater than sealing ring (9) maximum
Elastic deformation amount.When releasing braking, motor (14) drives worm gear mechanism reversion, one-way clutch (7) separation, sealing ring
(9) elastic potential energy release, makes piston (11) and braking clamp body (3) relative motion, drives nut (5) rotation, at this time sealing ring
(9) and piston (11) is with new contact surface cooperation positioning, and return displacement is still the maximum flexibility deflection of sealing ring (9),
Therefore it is identical as before abrasion to maintain brake clearance, realizes the adjust automatically of brake clearance.
It, can be after motor (14) be powered and reach parking braking effect when the reverse efficiency of worm screw (8) and worm gear (6) is zero
The parking braking under motor (14) power blackout situation is realized in power-off using the self-locking function of worm gear mechanism.
With reference to attached drawing 3, another embodiment of the invention is described.
The embodiment of attached drawing 3 and the embodiment main distinction of attached drawing 1 are as follows:
Transmission mechanism is different, is driven in attached drawing 1 using worm gear mechanism, and worm gear (6) is the final element of transmission mechanism,
One-way clutch (7) is mounted between worm gear (6) and nut (5)；Two-stage gear drive, secondary driven tooth are used in attached drawing 3
The final element that (24) are transmission mechanism is taken turns, one-way clutch (7) is mounted between secondary driven gear (24) and nut (5).
The limiting device that rubs is different, realizes friction limit function using sealing ring (9) in attached drawing 1, utilizes sealing ring (9)
Flexible deformation stores elastic potential energy；Friction limit function is realized using spring (17) and snap ring (18) in attached drawing 3, utilizes spring
(17) it generates flexible deformation and stores elastic potential energy.
Piston positioning means are different, be axially moveable piston (11) can only using dive key (10) in attached drawing 1, can not
Rotation；Piston (11) is axially moveable can only using cylindrical roller (16) in attached drawing 3, can not be rotated.
The mode that parking braking function is realized is different, and in attached drawing 1, the reverse efficiency using worm gear mechanism is zero, directly
The parking braking under motor (14) power blackout situation may be implemented；In attached drawing 3, release electricity when being powered using electromagnetic brake (20)
Arbor (19), locking motor shaft (19) realizes the parking braking under motor (14) power blackout situation when power-off.
As shown in figure 3, a kind of floating caliper type disc brake-by-wire device includes a caliper that can be moved on guide pin (2)
Body (3), guide pin (2) are fixed on brake-caliper support (1).There are brake disc (13), brake disc in the jaw of braking clamp body (3)
(13) two sides have friction plate (12), and one is mounted on braking clamp body (3), and one is mounted on piston (11), and piston (11) is logical
Cylindrical roller (16) and snap ring (18) are crossed on braking clamp body (3), snap ring (18) is pushed to by spring (17) far from brake disc
(13) side, spring (17) are mounted on braking clamp body (3).Cylindrical roller (16) makes piston (11) can only be in the axial direction
It is mobile, it is not able to rotate, has biggish frictional force between snap ring (18) and the contact surface of piston (11), when the displacement of piston (11) exists
When in the regime of elastic deformation of spring (17), without relative motion between snap ring (18) and the contact surface of piston (11).Nut (5) is logical
Tapered roller bearing (28) is crossed to be supported on braking clamp body (3).Friction plate (12) are installed in one end of piston (11), and the other end is solid
Dingan County's loading screw (29), screw rod (29) and nut (5) cooperate.Inner ring of the outer surface of nut (5) as one-way clutch (7),
The outer ring of one-way clutch (7) is fixedly connected with secondary driven gear (24), secondary driven gear (24), secondary driving gear
(23), primary driven gear (22) and primary drive gear (21) constitute two-stage gear reduction, primary drive gear (21)
It is fixedly connected with the motor shaft (19) of motor (14).
When braking operation, motor (14) drives one-way clutch (7) to combine by two-stage gear reduction, drives nut
(5) it rotates, pushes piston (11) and braking clamp body (3) to move in the opposite direction, drive corresponding friction plate (12) from two sides
It is forced with identical to brake disc (13), realizes the braking effect of high efficient and reliable.At this point, snap ring (18) and piston (11) are together
Mobile, flexible deformation occurs for compressed spring (17), spring (17), stores elastic potential energy, the contact of snap ring (18) and piston (11)
Without relative motion between face.When releasing braking operation, motor (14) drives two-stage gear reduction to rotate backward, at this point, unidirectionally
Clutch (7) separation, nut (5) are in free state, and the elastic potential energy release of spring (17) storage makes piston (11) and system
Moving caliper (3) relative motion drives nut (5) to reversely rotate under the elastic potential energy effect in spring (17), and all elements are extensive
Multiple initial position.
When friction plate (12) are worn, after thickness is thinning, when braking operation, motor (14) passes through two-stage gear reduction band
Dynamic one-way clutch (7) combine, and driving nut (5) rotation pushes piston (11) and braking clamp body (3) relative motion, spring
(17) elastic deformation amount reaches maximum, and snap ring (18) is close to when on the step surface of left side, since friction plate (12) are worn, system
Move ineffective, motor (14) continues through one-way clutch (7) driving nut (5) rotation of combination, i.e. piston (11) at this time
Continue relative motion with braking clamp body (3), therefore, spring (17) keeps maximum flexibility deflection, and piston (11) overcomes and blocks
Frictional force between ring (18) is matched with new contact surface with snap ring (18).When releasing braking, motor (14) drives two-stage
Gear reduction reversion, one-way clutch (7) separation, the elastic potential energy release of spring (17) make piston (11) and caliper
Body (3) relative motion drives nut (5) rotation, and snap ring (18) and piston (11) are cooperated at this time with new contact surface positions, and returns
Bit Shift amount is still the maximum flexibility deflection of spring (17), thus maintain brake clearance with abrasion before it is identical, realize
The adjust automatically of brake clearance.
When needing parking braking, so that motor (14) driving friction plate (12) is compressed brake disc (13), reach parking braking
It is required that then electromagnetic brake (20) powers off, locking motor shaft (19) keeps brake efficiency constant, motor can be realized at this time
(14) parking braking function under power blackout situation.It when electromagnetic brake (20) is powered, discharges motor shaft (19), braking turns at this time
Square size can freely be controlled by motor (14).
In the embodiment of attached drawing 3, one-way clutch (7) can also be arranged in primary drive gear (21), or it is primary from
In moving gear (22), or in secondary driving gear (23), as content to be protected needed for claim 3.
Attached the third embodiment shown in Fig. 4 and attached second of embodiment shown in Fig. 3 are essentially identical, and difference is: attached
The parking braking function under motor (14) power blackout situation is realized using electromagnetic brake (20) in Fig. 3；Using automatically controlled in attached drawing 4
Mechanical brake device realizes the parking braking function under motor (14) power blackout situation, and specific work process is as follows:
When electromagnetic coil (25) is powered, lock pin (27) is made lock pin by electromagnetic force, compression retracteding position spring (26)
(27) it is not in contact with each other with secondary driven gear (24), braking or the no any influence of release to brake；When the parking system of needs
When dynamic, motor (14) drives friction plate (12) to compress brake disc (13), reaches parking braking requirement, then electromagnetic coil (25)
Power-off, lock pin (27) are inserted into the tooth of secondary driven gear (24) under the elastic force effect of return spring (26), keep staying
The parking braking function under motor (14) power blackout situation can be realized in vehicle braking effect.
The structure of attached the third embodiment other parts shown in Fig. 4 and the course of work all with the embodiment phase in attached drawing 3
Together, it is not further described.
With reference to attached drawing 1 and attached drawing 2, the embodiment of floating caliper type disc brake-by-wire device control method a kind of in the present invention is carried out
Description.
As shown in Figure 1, a kind of floating caliper type disc brake-by-wire device control method includes disc brake with floating caliper of the invention, target
Disk (4), sensor (15), electronic control unit (not shown).Target disc (4) is fixedly mounted on the outer surface of nut (5), is passed
Sensor (15) is mounted on braking clamp body (3), installation corresponding with target disc (4), for detecting the motion state of target disc (4).System
When starting building to make, motor (14) drives nut (5) rotation, and target disc (4) is rotated together with nut (5), and sensor (15) receives target disc
(4) rotation information, and it is transmitted to electronic control unit, braking can be calculated in the size of current of electronic control unit combination motor (14)
The clamping force size of device, and severity of braking is adjusted.
Transmission mechanism can also use chain conveyer, V belt translation, planetary gear in addition to using turbine and worm mechanism, gear mechanism
Other kinds of drive such as transmission, friction limiting device can also be using other structures in addition to using sealing ring, spring/snap ring
It is achieved similar function, piston positioning means can also use spline, pin, work in addition to using dive key, cylindrical roller
The non-circular equal various ways of outer surface, lockable mechanism lock pin can also be acted on other gears or with gear one
On dedicated latch ratchet, or the modes such as ratchet and pawl arrangement are installed on motor shaft and realize latch functions.Obviously, described
Embodiment is only a part of the embodiments of the present invention, instead of all the embodiments, based on the embodiments of the present invention, this
Those of ordinary skill in field other all embodiments obtained under the premise of no progress creative work, all belong to
In protection scope of the present invention.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, as long as using the various improvement that the inventive concept and technical scheme of the present invention carry out, or not improved direct application
It is within the scope of the present invention in other occasions.
Claims (6)
1. a kind of floating caliper type disc brake-by-wire device includes motor, transmission mechanism, one-way clutch, nut, screw rod, piston, friction
Limiting device, piston positioning means, braking clamp body, brake disc, friction plate；The nut support is in the braking clamp body
On, the nut is in the axial direction without relative motion between the braking clamp body；The friction plate has two panels, right
Claim to be arranged in the brake disc two sides, one is mounted on the piston, and one is mounted on the braking clamp body；Institute
The piston stated is mounted on the braking clamp body via the friction limiting device, and the piston positioning means make piston
It can only move back and forth, can not rotate in axis direction；The piston is fixedly connected with the screw rod, the screw rod and institute
The nut cooperation stated；Inner ring of the outer surface of the nut as the one-way clutch, the one-way clutch
Outer ring is fixedly connected with the final element of the transmission mechanism；The final element of the transmission mechanism moves, described in drive
The rotation of one-way clutch outer ring, one-way clutch combines, and when the nut being driven to rotate, passes through the screw rod and pushes institute
The piston stated is mobile, and the braking clamp body and the nut are mobile to the direction opposite with the piston, described in drive
Friction plate from brake disc described in two side compressions；The input element of the motor connection transmission mechanism；Described
Friction limiting device a part is fixedly mounted on the braking clamp body, have between another part and the outer surface of piston compared with
Big frictional force, when having relative displacement between the piston and the braking clamp body, described in frictional force effect makes
Friction limiting device in generate elastic potential energy；
When braking, the motor is moved via the transmission mechanism driving one-way clutch outer ring, one-way clutch
Device combines, and the nut is driven rotate, by the screw rod drive described in piston and the braking clamp body respectively to
Opposite direction movement, makes the friction plate be pressed on the brake disc two sides, obtains the braking effect of high efficient and reliable, this
When, there is relative displacement between the piston and the braking clamp body, generates elastic potential in the friction limiting device
Energy；When releasing braking, the motor one-way clutch outer ring counter motion described via the transmission mechanism driving,
One-way clutch separates, and the elastic potential energy effect inside the friction limiting device makes the piston and the braking
Caliper relative motion restores initial position, and nut rotation at this time is to adapt to the piston and the braking clamp body
Relative motion；
When the friction plate have abrasion, thickness it is thinning after, when braking operation, the motor drives via the transmission mechanism
It moves the one-way clutch to combine, the nut is driven to rotate, make the piston and the opposite shifting of the braking clamp body
Dynamic, elastic potential energy reaches maximum in the friction limiting device, and since friction plate is thinning, braking effect is bad, described at this time
Motor work on, drive the nut to continue to rotate, the outer surface of the piston and the friction overcome to limit
Frictional force between device makes the piston and the braking clamp body continue to relatively move, and compresses brake disc, obtains reliable
Efficient braking effect；When releasing braking, the elastic potential energy in the friction limiting device is acted on, and makes the piston and institute
The braking clamp body relative motion stated, the piston and the friction limiting device are opposite solid with new contact position at this time
It is fixed, realize the adjust automatically of brake clearance.
2. a kind of floating caliper type disc brake-by-wire device according to claim 1, it is characterised in that further include in the nut
System working efficiency is improved to reduce frictional resistance using circulation spherical structure between the screw rod.
3. a kind of floating caliper type disc brake-by-wire device according to claim 1, it is characterised in that further include described unidirectional
Increase transmission system between clutch and the nut.
4. a kind of floating caliper type disc brake-by-wire device according to claim 1, it is characterised in that further include by the transmission
The inner ring of the final element connection of the mechanism one-way clutch, the nut connect the outer of the one-way clutch
Circle, when braking operation, the one-way clutch is combined, when releasing braking, the one-way clutch separation.
5. according to claim 1 or a kind of floating caliper type disc brake-by-wire device as claimed in claim 3, it is characterised in that when described
When the transmission link for being zero without reverse efficiency in transmission mechanism or the transmission system, the motor is realized using lockable mechanism
Parking braking under power blackout situation, the lockable mechanism use electromagnetic brake or electric-controlled mechanical brake apparatus, can be logical
Actuated element when discharging, powering off when electric in fixed conveyor link, keeps pressure between the friction plate and the brake disc
Size, realize parking braking function；It is zero when being provided with reverse efficiency in the transmission mechanism or the transmission system
When transmission link, it can use the lockable mechanism and realize parking braking, also can use reverse efficiency is zero, power and movement
Can not back transfer, realize the parking braking under the motor power blackout situation.
6. a kind of floating caliper type disc brake-by-wire device control method, which is characterized in that use floating caliper type disc line described in claim 1
Brake is controlled, when control method comprises the steps of: braking operation, the motor drives the transmission mechanism work, institute
The one-way clutch stated combines, and the nut is driven to rotate, and drives the piston and the braking clamp body mobile, makes institute
The friction plate stated compresses the brake disc two sides, the rotation information of the electronic control unit detection nut, in conjunction with the electricity
The size of current of machine calculates braking clamping force；When the friction disc wear, the electronic control unit control motor rotation with
It is influenced caused by compensation abrasion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710536656.9A CN107435699B (en) | 2017-06-20 | 2017-06-20 | A kind of floating caliper type disc brake-by-wire device and control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710536656.9A CN107435699B (en) | 2017-06-20 | 2017-06-20 | A kind of floating caliper type disc brake-by-wire device and control method |
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| CN107435699A CN107435699A (en) | 2017-12-05 |
| CN107435699B true CN107435699B (en) | 2019-02-05 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109812520B (en) * | 2019-01-29 | 2024-04-02 | 长沙三占惯性制动有限公司 | Inertial brake with opening and holding device and control method |
| CN110425236B (en) * | 2019-07-27 | 2021-01-15 | 浙江师范大学 | Self-energizing wire control actuator |
| CN112413006B (en) * | 2019-08-23 | 2022-02-08 | 比亚迪股份有限公司 | Disc brake and vehicle |
| CN112849109B (en) * | 2019-11-28 | 2022-06-14 | 比亚迪股份有限公司 | Braking system, vehicle and braking method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660580A (en) * | 2008-08-29 | 2010-03-03 | 日立汽车系统株式会社 | Electric disk brake |
| CN202149166U (en) * | 2011-07-06 | 2012-02-22 | 隆中控股集团有限公司 | Automatic clearance adjusting mechanism of automobile pressure disc brake |
| EP2465741A1 (en) * | 2010-12-20 | 2012-06-20 | Robert Bosch GmbH | Electric servo assisted brake system |
| CN102853000A (en) * | 2012-09-15 | 2013-01-02 | 浙江大学台州研究院 | Automobile brake controlled by wire |
| CN104019163A (en) * | 2014-06-28 | 2014-09-03 | 枣庄泰德机械有限公司 | Chassis type automatic brake gap adjusting mechanism of commercial vehicle |
-
2017
- 2017-06-20 CN CN201710536656.9A patent/CN107435699B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660580A (en) * | 2008-08-29 | 2010-03-03 | 日立汽车系统株式会社 | Electric disk brake |
| EP2465741A1 (en) * | 2010-12-20 | 2012-06-20 | Robert Bosch GmbH | Electric servo assisted brake system |
| CN202149166U (en) * | 2011-07-06 | 2012-02-22 | 隆中控股集团有限公司 | Automatic clearance adjusting mechanism of automobile pressure disc brake |
| CN102853000A (en) * | 2012-09-15 | 2013-01-02 | 浙江大学台州研究院 | Automobile brake controlled by wire |
| CN104019163A (en) * | 2014-06-28 | 2014-09-03 | 枣庄泰德机械有限公司 | Chassis type automatic brake gap adjusting mechanism of commercial vehicle |
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