CN106402205A - Automobile electronic mechanical brake system wheel rim self-powered type brake executing mechanism - Google Patents
Automobile electronic mechanical brake system wheel rim self-powered type brake executing mechanism Download PDFInfo
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- CN106402205A CN106402205A CN201610965392.4A CN201610965392A CN106402205A CN 106402205 A CN106402205 A CN 106402205A CN 201610965392 A CN201610965392 A CN 201610965392A CN 106402205 A CN106402205 A CN 106402205A
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- brake
- nut
- braking
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- limit switch
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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
- F16D55/225—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 the braking members being brake pads
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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
- F16D61/00—Brakes with means for making the energy absorbed available for use
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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
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/18—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for drawing members together, e.g. for disc brakes
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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
- F16D65/78—Features relating to cooling
- F16D65/84—Features relating to cooling for disc brakes
- F16D65/847—Features relating to cooling for disc brakes with open cooling system, e.g. cooled by air
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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
- F16D66/00—Arrangements for monitoring working conditions, e.g. wear, temperature
- F16D66/02—Apparatus for indicating wear
- F16D66/021—Apparatus for indicating wear using electrical detection or indication means
- F16D66/022—Apparatus for indicating wear using electrical detection or indication means indicating that a lining is worn to minimum allowable thickness
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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
- F16D65/78—Features relating to cooling
- F16D2065/783—Features relating to cooling cooling control or adjustment
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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
- F16D2121/14—Mechanical
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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
- F16D2123/00—Multiple operation forces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention relates to the technical field of vehicle brake, in particular to an automobile electronic mechanical brake system wheel rim self-powered type brake executing mechanism. The mechanism comprises a brake executing part and a regenerative motor part. The brake executing part comprises a stepping motor, a planetary gear mechanism, a lead screw and nut mechanism, a brake caliper body and the like. The regenerative motor part comprises an electromagnetic clutch and a regenerative motor. The electromagnetic clutch and the regenerative motor are arranged in the axial direction of the brake disc. When an automobile is braked, the electromagnetic clutch is preferentially controlled to be engaged, the brake disc drives the regenerative motor to rotate, automobile brake energy is converted into electric energy, and brake torque is provided. When the brake torque provided by the regenerative motor is not enough, the stepping motor is controlled to rotate, and a friction block is pushed by the planetary gear mechanism and the lead screw and nut mechanism to the brake disc to implement friction brake. The automobile electronic mechanical brake system wheel rim self-powered type brake executing mechanism has the advantages of being compact in structure, convenient to arrange, good in dynamic property, easy to integrate and control and the like, and recycled brake energy can be directly utilized for driving the brake executing mechanism to act.
Description
Technical field
The present invention relates to vehicle brake technology field is and in particular to a kind of automobile electro-mechanical brake system wheel side self-powered
Formula brake actuator.
Background technology
Brakes is one of important component part of automobile chassis, is directly connected to comprehensive vehicle performance and lives and properties
Safety.Although conventional hydraulic formula, pneumatic brake system disclosure satisfy that the requirements of existing brake legislation, there is pipe
Road arrangement is complicated, dependence vacuum booster unit, braking response speed are relatively slow, braking moment can not actively be adjusted and is difficult to and other
The weak points such as system integration control, are not suitable for the demand for development of the integrated control of automobile especially electric automobile chassis.
The electric controlled brake system reality decoupling of brakes, mainly has EHB (EHB) and an electronic machine
Two kinds of tool brakes (EMB), eliminates being directly connected between brake pedal and wheel cylinder, with electric wire for information transmission matchmaker
It is situated between, electronic control unit identifies braking intention according to relevant sensor signals, controls brake actuator action, realize to wheel
The control of brake force, has the advantages that to be independent of vacuum booster unit, is easily integrated control, compensate for Conventional braking systems structure
Deficiency in principle.
But, EHB system typically adopts centralized arrangement mode, still needs to arrange car load conduit under fluid pressure, dynamic response performance can
To improve further.EMB system typically using distribution arrangement, car load brake-press lead need not be arranged, have dynamic property good,
The advantages of arrange easy.But, current EMB system is mostly single electric machine actuating mechanism, fails to make full use of automobile brake energy
Drive frictional damping, and automobile brake load can not be shunted and reduce friction braking pairses abrasion.To so far, automotive electronics machine
Tool braking system steerage side self-powered brake actuator also rarely has and refers to.
Content of the invention
It is an object of the invention to proposing a kind of automobile electro-mechanical brake system wheel side self-powered brake actuator,
Using wheel side self-powered arrangement, car load brake-press lead need not be arranged, dynamic response performance is good, compact conformation, arrangement is convenient,
It is easy to control with other system integrations, braking energy can be changed into electric energy direct drive brake actuator action, and can divide
Load brake load reduces the double motor type brake actuator of friction pair abrasion.
In order to realize the purpose of the present invention, be employed technical scheme comprise that：Automobile electro-mechanical brake system wheel side is confessed
Electric-type brake actuator, this automobile electro-mechanical brake system wheel side self-powered brake actuator is arranged on each wheel
At brake disc it is characterised in that：Including regeneration motor part and braking executable portion, regeneration motor section is divided including electromagnetic clutch
Generator again, electromagnetic clutch and again generator are all axial arranged along wheel brake, and braking executable portion includes electronics control
Unit processed, motor, planetary gears, leading screw and nut mechanism, braking clamp body and brake pad, electronic control unit controls electricity
Magnet clutch combines, and wheel brake drives regeneration motor to rotate, and the braking energy of automobile is changed into electric energy and holds for braking
Row part provides braking moment, and electronic control unit controls motor to rotate, and motor drives planetary gears too
Sun wheel rotates, and the planet carrier of planetary gears is connected with leading screw and nut mechanism, and leading screw and nut mechanism includes left side nut and the right side
Side nut, braking clamp body is connected with right side nut, and brake pad includes left side brake pad and right side brake pad, left side brake pad and
Right side brake pad is separately positioned on the both sides of wheel brake, and right side brake pad is arranged on the inner side of braking clamp body, feed screw nut
Mechanism promotes left side brake pad and right side brake pad to press to wheel brake and carry out frictional damping respectively.
As the prioritization scheme of the present invention, automobile electro-mechanical brake system wheel side self-powered brake actuator also wraps
Include lithium battery, lithium battery is used for providing electric energy, lithium for automobile electro-mechanical brake system wheel side self-powered brake actuator
It is provided with diode, the energy reclaiming during lithium battery storing, regenerating motor braking between battery and automobile power source connecting line.
As the prioritization scheme of the present invention, planetary gears includes left side planetary gears and right side planetary gear machine
Structure, leading screw and nut mechanism includes left side screw mandrel and right side screw mandrel, the motor sun gear with left side planetary gears respectively
Connect with the sun gear of right side planetary gears, the planet carrier of left side planetary gears is connected with left side screw mandrel, right side
The planet carrier of planetary gears is connected with right side screw mandrel, and left side nut is connected with left side screw mandrel, right side nut and right side
Screw mandrel is connected.
As the prioritization scheme of the present invention, brake executable portion and also include brake pad pad, left side nut and brake pad pad
Piece connects, and left side brake pad is arranged on brake pad pad.
As the prioritization scheme of the present invention, brake executable portion and also include left side displacement transducer and right side displacement sensing
Device, left side displacement transducer and right side displacement transducer are potentiometer type displacement transducer, and the slide plate of left side displacement transducer is even
It is connected on the nut of left side, the slide plate of right side displacement transducer is connected on the nut of right side, left side displacement transducer and right side displacement
The shift position of the left side recording nut and right side nut is transferred to electronic control unit by sensor.
As the prioritization scheme of the present invention, brake executable portion and also include left side displacement transducer and right side displacement sensing
Device, left side displacement transducer and right side displacement transducer are potentiometer type displacement transducer, and the slide plate of left side displacement transducer is even
It is connected on the nut of left side, the slide plate of right side displacement transducer is connected on the nut of right side, left side displacement transducer and right side displacement
The shift position of the left side recording nut and right side nut is transferred to electronic control unit by sensor.
As the prioritization scheme of the present invention, brake executable portion and also include left side limit switch and right side limit switch, left
Lateral spacing bit switch is arranged between left side nut and brake pad pad, and right side limit switch is arranged on right side nut and braking clamp body
Inner side between.
As the prioritization scheme of the present invention, left side limit switch and right side limit switch are normally opened contact switch, left side
The front end of screw mandrel contacts with left side limit switch so that the closing of contact of left side limit switch, and left side limit switch is by contact
Closure information transfer electron control unit, the front end of right side screw mandrel is contacted with right side limit switch so that right side is spacing opens
The closing of contact closed, contact closure information is transferred to electronic control unit by right side limit switch, and electronic control unit receives
By the information of the closing of contact or right side limit switch by the information of the closing of contact, electronic control unit controls step to left side limit switch
Stepper motor power-off.
As the prioritization scheme of the present invention, automobile electro-mechanical brake system wheel side self-powered brake actuator also wraps
Include cooling fan and temperature sensor, cooling fan is arranged on the side of lithium battery, automobile electro-mechanical brake system wheel side is certainly
It is additionally provided with heat dissipation channel inside operated type brake actuator, in heat dissipation channel, be provided with heat dissipation metal fine-structure mesh, temperature sensing
The temperature surveyed is transferred to electronic control unit by device, when electronic control unit judges that temperature reaches certain value, controls cooling wind
Fan rotation work.
As the prioritization scheme of the present invention, braking clamp body is floating tong type braking clamp body.
The present invention has positive effect：1) present invention is decoupling distributed brake actuator, need not arrange car load system
, it is easy to control with other system integrations, conveniently and dynamic response is rapid for compact conformation, arrangement for dynamic pipeline；
2) braking energy can be changed into electric energy by the present invention, and can be directly used for driving brake actuator action, improve
Braking energy utilization ratio and reduction energy resource consumption；
3), during the work of present invention regeneration motor, braking moment can be produced and share brake load, reduce brake disc friction pair
Abrasion, improves service life and the heat resistanceheat resistant decline performance of friction pair；
4) present invention has preferably anti-inefficacy ability, and each brake actuator is relatively independent, if one of
Break down, other is several still can be made automobile reliably slow down, stop；The present invention is easily achieved emergency brake function, can be by automobile
Itself braking energy drives brake actuator action, realizes car emergency braking；
5) present invention has the function of detection brake pad abrasion condition；
6) present invention has self refrigerating function, brake actuator temperature can be prevented too high and affect braking ability.
Brief description
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the braking executable portion housing configuration diagram of the present invention；
Embodiments of the invention figure during Fig. 3.
Wherein：1st, wheel brake, 21, electromagnetic clutch, 22, generator again, 31, electronic control unit, 32, stepping electricity
Machine, 35, braking clamp body, 341, left side nut, 342, right side nut, 361, left side brake pad, 362, right side brake pad, 4, lithium electricity
Pond, 331, left side planetary gears, 332, right side planetary gears, 343, left side screw mandrel, 344, right side screw mandrel, 37, rub
Cleaning block pad, 38, left side displacement transducer, 39, right side displacement transducer, 310, left side limit switch, 311, right side is spacing opens
Close, 5, cooling fan, 6, temperature sensor.
Specific embodiment
In describing the invention it is to be understood that term " radially ", " axial ", " on ", D score, " top ", " bottom ",
The orientation of instruction such as " interior ", " outward " or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch
State the present invention and simplify description, rather than the device of instruction or hint indication or element must have specific orientation, with specific
Azimuth configuration and operation, be therefore not considered as limiting the invention.In describing the invention, unless otherwise stated,
" multiple " are meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " set
Put ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be to be joined directly together it is also possible to be indirectly connected to by intermediary.For the ordinary skill in the art, can basis
Concrete condition understands above-mentioned term concrete meaning in the present invention.
As illustrated, the invention discloses automobile electro-mechanical brake system wheel side self-powered brake actuator, being somebody's turn to do
Automobile electro-mechanical brake system wheel side self-powered brake actuator is arranged at each wheel brake 1, including regeneration
Motor part and braking executable portion, regeneration motor section is divided including electromagnetic clutch 21 and regeneration motor 22, electromagnetic clutch 21
All axial arranged along wheel brake 1 with regeneration motor 22, braking executable portion includes electronic control unit 31, motor
32nd, planetary gears, leading screw and nut mechanism, braking clamp body 35 and brake pad, electronic control unit 31 controls electromagnetic clutch
21 combinations, wheel brake 1 drives regeneration motor 22 to rotate, and the braking energy of automobile is changed into electric energy and for braking enforcement division
Divide and braking moment is provided, electronic control unit 31 controls motor 32 to rotate, and motor 32 drives planetary gears
Sun gear rotates, and the planet carrier of planetary gears is connected with leading screw and nut mechanism, and leading screw and nut mechanism includes left side nut 341
With right side nut 342, braking clamp body 35 is connected with right side nut 342, and brake pad includes left side brake pad 361 and right side friction
Block 362, left side brake pad 361 and right side brake pad 362 are separately positioned on the both sides of wheel brake 1, and right side brake pad 362 sets
Put the inner side in braking clamp body 35, leading screw and nut mechanism promotes left side brake pad 361 and right side brake pad 362 to press to car respectively
Wheel brake disc 1 carries out frictional damping.Wherein, it is provided with an independent vehicle electromechanical braking system at each wheel brake 1
Steerage side self-powered brake actuator, each automobile electro-mechanical brake system wheel side self-powered brake actuator it
Between non-interference, regeneration motor part and braking executable portion between connect by wire, brake executable portion be arranged on housing
Interior, the housing of braking executable portion is fixedly connected with vehicle bridge.Braking clamp body 35 is flexibly connected with the housing of braking executable portion, step
Stepper motor 32 is arranged in the housing of braking executable portion, and motor 32 is connected to braking executable portion by a chute
In housing, that is, motor 32 linearly can move in the housing of braking executable portion.
Automobile electro-mechanical brake system wheel side self-powered brake actuator also includes lithium battery 4, and lithium battery 4 is used for
There is provided electric energy for automobile electro-mechanical brake system wheel side self-powered brake actuator, lithium battery 4 is connected with automobile power source
It is provided with diode, the energy reclaiming during lithium battery 4 storing, regenerating motor 22 braking between line.
Planetary gears includes left side planetary gears 331 and right side planetary gears 332, leading screw and nut mechanism
Including left side screw mandrel 343 and right side screw mandrel 344, motor 32 sun gear and the right side with left side planetary gears 331 respectively
The sun gear of side planetary gears 332 connects, and the planet carrier of left side planetary gears 331 is connected with left side screw mandrel 343,
The planet carrier of right side planetary gears 332 is connected with right side screw mandrel 344, and left side nut 341 is connected with left side screw mandrel 343
Connect, right side nut 342 is connected with right side screw mandrel 344.Wherein, the sun gear of left side planetary gears 331 and right side planet
The sun gear of gear mechanism 332 is fixedly connected with the output shaft of motor 32 both sides respectively, left side planetary gears 331
Planet carrier is connected with left side screw mandrel 343, and the planet carrier of right side planetary gears 332 is connected with right side screw mandrel 344, works as stepping
When motor 32 rotates, leading screw and nut mechanism is driven to rotate by planetary gears, playing slows down increases the effect turned round.So can subtract
The size of little motor 32.
Braking executable portion also includes brake pad pad 37, and left side nut 341 is connected with brake pad pad 37, and left side rubs
Block 361 is arranged on brake pad pad 37.The rotary motion of screw mandrel can be converted to the straight line fortune of nut by leading screw and nut mechanism
Dynamic.Left side nut 341 is rigidly connected with brake pad pad 37, and brake pad pad 37 is rigidly connected with left side brake pad 361, that is, left
Side nut 341 is mobile, drives brake pad pad 37 and left side brake pad 361 and then to move together.Right side nut 342 and caliper
Body 35 is rigidly connected, and right side brake pad 362 is rigidly connected with braking clamp body 35, and that is, right side nut 342 is mobile, drives braking clamp body
35 and right side brake pad 362 and then move together.Therefore, when motor 32 rotation work, by planetary gears, silk
Stem nut mechanism, brake pad pad 37 and braking clamp body 35, drive left side brake pad 361 and right side brake pad 362 to press to wheel
Brake disc 1 and increased or decrease braking moment.If left side brake pad 361 contact with right side brake pad 362 wheel brake 1 when
Between inconsistent, then after the brake pad of side first contacts wheel brake 1, due to motor 32 can braking executable portion
Linear slide in housing, so, motor 32 rotates the left side nut 341 producing or right side nut 342 displacement can be applied simultaneously
It is added on opposite side brake pad, so that opposite side brake pad is rapidly contacted with wheel brake 1, to rub in left side brake pad 361 and right side
Cleaning block 362 applies braking moment more simultaneously.So wheel brake 1 both sides stress balance, is conducive to the control to braking moment
Service life with brake friction pair.
Braking executable portion also includes left side displacement transducer 38 and right side displacement transducer 39, left side displacement transducer 38
It is potentiometer type displacement transducer with right side displacement transducer 39, the slide plate of left side displacement transducer 38 is connected to left side nut
On 341, the slide plate of right side displacement transducer 39 is connected on the nut 342 of right side, and left side displacement transducer 38 and right side displacement pass
The shift position of the left side recording nut 341 and right side nut 342 is transferred to electronic control unit 31 by sensor 39.When side nut
341 or right side nut 342 mobile when, the slide plate of left side displacement transducer 38 and right side displacement transducer 39 is followed and is moved, thus
Change its output voltage values, electronic control unit 31 thus identifies the shift position of left side nut 341 and right side nut 342.It
Feedback signal and the brake pad abrasion condition information of brake actuator action control can be provided.If electronic control unit 31
Brake pad abrasion is detected when reaching allowable upper limit value, then the prompting driver that gives a warning notes.
Braking executable portion also includes left side limit switch 310 and right side limit switch 311, and left side limit switch 310 sets
Put between left side nut 341 and brake pad pad 37, right side limit switch 311 is arranged on right side nut 342 and braking clamp body
Between 35 inner side.Left side limit switch 310 and right side limit switch 311 are normally opened contact switch, before left side screw mandrel 343
End contacts with left side limit switch 310 so that the closing of contact of left side limit switch 310, and left side limit switch 310 is by contact
Closure information transfer electron control unit 31, the front end of right side screw mandrel 344 contact with right side limit switch 311 so that the right side
The closing of contact of lateral spacing bit switch 311, contact closure information is transferred to electronic control unit 31 by right side limit switch 311, electricity
Sub-control unit 31 receives left side limit switch 310 by the information of the closing of contact or right side limit switch 311 by the closing of contact
Information, electronic control unit 31 control motor 32 power-off.Left side limit switch 310 and right side limit switch 311 are pressurized
When contact switch closure, left side limit switch 310 and right side limit switch 311 are just to left side screw mandrel 343 and right side screw mandrel 344
Center.When left side screw mandrel 343 and right side screw mandrel 344 are repositioned to extreme position, left side screw mandrel 343 and right side screw mandrel 344
Front end can contact with left side limit switch 310 and right side limit switch 311, make left side limit switch 310 and right side be spacing opens
Close 311 closing of contact, information is passed to electronic control unit 31 simultaneously.Electronic control unit 31 receives limit switch contact
Closure information, then control motor 32 power-off immediately or reversely rotate certain angle, prevent leading screw and nut mechanism from damaging stepping
Motor 32 and planetary gears etc..
Automobile electro-mechanical brake system wheel side self-powered brake actuator also includes cooling fan 5 and temperature sensing
Device 6, cooling fan 5 is arranged on the side of lithium battery 4, automobile electro-mechanical brake system wheel side self-powered brake actuator
Inside is additionally provided with heat dissipation channel, is provided with heat dissipation metal fine-structure mesh in heat dissipation channel, and the temperature surveyed is transmitted by temperature sensor 6
Electron control unit 31, when electronic control unit 31 judges that temperature reaches certain value, controls cooling fan 5 rotation work.System
Moving caliper 35 is floating tong type braking clamp body.
Wheel brake 1 is fixedly connected with the active part of electromagnetic clutch 21, the active part of electromagnetic clutch 21 with
The semiaxis of wheel brake 1 is connected by needle bearing, and that is, wheel brake 1 rotates, then the active part of electromagnetic clutch 21
Rotate.The housing of electromagnetic clutch 21 is fixedly connected with the housing of regeneration motor 22.The secondary part of electromagnetic clutch 21 with again
The rotor of generator 22 is fixedly connected, and the rotor of regeneration motor 22 is connected by needle bearing with the semiaxis of wheel brake 1.When
When solenoid in electromagnetic clutch 21 is energized, engaged by the action of a magnetic field electromagnetic clutch 21, wheel brake 1 can be passed through
Electromagnetic clutch 21 drives the rotor of regeneration motor 22 to rotate.When solenoid power-off, electromagnetic clutch 21 separates, wheel system
Power interruption between the rotor of Moving plate 1 and regeneration motor 22, regeneration motor 22 does not work.
Regeneration motor 22 is electronic, power generation all-in-one machine.When regeneration motor 22 rotor by wheel brake 1 with rotation
When, that is, enter generator mode, while partial brake moment being provided and reduces friction pair burden, automobile brake energy is turned
It is changed into electric energy, be sent to motor 32, cooling fan 5 and lithium battery 4 etc., play the effect of high efficiente callback braking energy.Work as vapour
When car is in the operating modes such as anxious acceleration, climbing, electronic control unit 31 can control powers to regeneration motor 22, now enters motor
Pattern, regeneration motor 22 passes through electromagnetic clutch 21, wheel brake 1 to wheel provided auxiliary driving torque.Regeneration motor 22
Carry fan, for the radiating of electromagnetic clutch 21 and regeneration motor 22.
Lithium battery 4 provides electric energy for automobile electro-mechanical brake system wheel side self-powered brake actuator, and stores
The energy that reclaims during regeneration motor 22 braking, its magnitude of voltage is slightly above the supply voltage of automobile, and with automobile power source connecting line it
Between add a diode.Generally, lithium battery voltage is higher than vehicle power supply voltage, and diode ends, and vehicle electromechanical is braked
The power-supply system of system wheel side self-powered brake actuator is relatively independent；When the voltage of lithium battery 4 is less than automobile power source electricity
During pressure, diode turns on, and automobile power system is powered to lithium battery 4, automobile electro-mechanical brake system wheel side self-powered system
Dynamic actuator keeps normal performance.So, if automobile power system occurs catastrophic failure, automobile electro-mechanical brake system wheel
Side self-powered brake actuator remains to normal work, improves functional reliability.
Whole automobile electro-mechanical brake system wheel side self-powered brake actuator adopts layer-stepping control structure, if
It is equipped with brakes master control unit and each electronic control unit 31.Brakes master control unit is responsible for identifying driver's system
Move and be intended to, judge on-position, distribute each wheel target braking force and the information exchange and between automobile other system.Each electronics
Control unit 31, for the displacement of collection left side nut 341 and right side nut 342, the case temperature of braking executable portion and limit
The information such as bit switch, instruct according to brakes master control unit and control brake actuator action, realize Brake energy recovery
Using and wheel slow down, braking, and relevant information is fed back to brakes master control unit.
When automobile brake, the preferential joint controlling electromagnetic clutch 21 according to damped condition of electronic control unit 31, car
Wheel brake disc 1 is passed through electromagnetic clutch 21 and drives regeneration motor 22 to rotate, and automobile brake energy is changed into electric energy and provides portion
Divide braking moment, reach recovery braking energy, Split flow brake load, reduce the purpose of friction pair abrasion.When regeneration motor 22 carries
For braking moment inadequate when, electronic control unit 31 control motor rotate, by planetary gears and feed screw nut
Mechanism pushes brake pad to wheel brake and implements frictional damping.
As Fig. 3, motor regenerating section is identical with embodiment one.Braking executable portion includes braking clamp body 35, brake pad, rubs
Cleaning block pad 37, left side limit switch 310, left side screw mandrel 343, motor 32, left side planetary gears 331, left side spiral shell
Female 341, left side displacement transducer 38 etc..With respect to embodiment one, the braking executable portion of embodiment two eliminates right side planet
Gear mechanism 332, right side screw mandrel 344, right side limit switch 311, right side nut 342, right side displacement transducer 39 etc., whole vapour
Car electromechanical braking system wheel side self-powered brake actuator volume is reduced.The basic role of each critical component
And the basic functional principle of whole automobile electro-mechanical brake system wheel side self-powered brake actuator is similar to implementing one,
Simply simultaneously driven by both sides and change into unilateral driving.
It should be appreciated that specific embodiment described above is only used for explaining the present invention, it is not intended to limit the present invention.By
Obvious change that the spirit of the present invention is extended out or change among still in protection scope of the present invention.
Claims (9)
1. automobile electro-mechanical brake system wheel side self-powered brake actuator, described automobile electro-mechanical brake system
Wheel side self-powered brake actuator be arranged on each wheel brake (1) place it is characterised in that：Including regeneration motor part
With braking executable portion, described regeneration motor section is divided including electromagnetic clutch (21) and generator (22) again, described electromagnetism
Clutch (21) and again generator (22) are all axial arranged along wheel brake (1), and described braking executable portion includes electronics
Control unit (31), motor (32), planetary gears, leading screw and nut mechanism, braking clamp body (35) and brake pad, electronics
Control unit (31) controls electromagnetic clutch (21) to combine, and wheel brake (1) drives generator (22) to rotate, by automobile again
Braking energy is changed into electric energy and provides braking moment for braking executable portion, and electronic control unit (31) controls motor
(32) rotate, described motor (32) drives the sun gear of planetary gears to rotate, the planet carrier of planetary gears
It is connected with leading screw and nut mechanism, described leading screw and nut mechanism includes left side nut (341) and right side nut (342), described
Braking clamp body (35) is connected with right side nut (342), and described brake pad includes left side brake pad (361) and right side brake pad
(362), described left side brake pad (361) and right side brake pad (362) are separately positioned on the both sides of wheel brake (1), institute
The right side brake pad (362) stated is arranged on the inner side of braking clamp body (35), and described leading screw and nut mechanism promotes left side to rub respectively
Cleaning block (361) and right side brake pad (362) press to wheel brake (1) and carry out frictional damping.
2. automobile electro-mechanical brake system wheel side according to claim 1 self-powered brake actuator, its feature
It is：Described automobile electro-mechanical brake system wheel side self-powered brake actuator also includes lithium battery (4), described lithium
Battery (4) is used for providing electric energy for automobile electro-mechanical brake system wheel side self-powered brake actuator, and described lithium is electric
It is provided with diode, described lithium battery (4) storing, regenerating motor (22) returns when braking between pond (4) and automobile power source connecting line
The energy received.
3. automobile electro-mechanical brake system wheel side according to claim 2 self-powered brake actuator, its feature
It is：Described planetary gears includes left side planetary gears (331) and right side planetary gears (332), described
Leading screw and nut mechanism include left side screw mandrel (343) and right side screw mandrel (344), motor (32) respectively with left side planetary gear
The sun gear of the sun gear of mechanism (331) and right side planetary gears (332) connects, left side planetary gears (331)
Planet carrier is connected with left side screw mandrel (343), and the planet carrier of right side planetary gears (332) is connected with right side screw mandrel (344)
Connect, left side nut (341) is connected with left side screw mandrel (343), right side nut (342) is connected with right side screw mandrel (344).
4. automobile electro-mechanical brake system wheel side according to claim 3 self-powered brake actuator, its feature
It is：Described braking executable portion also includes brake pad pad (37), described left side nut (341) and brake pad pad
(37) connect, described left side brake pad (361) is arranged on brake pad pad (37).
5. automobile electro-mechanical brake system wheel side according to claim 4 self-powered brake actuator, its feature
It is：Described braking executable portion also includes left side displacement transducer (38) and right side displacement transducer (39), left side displacement
Sensor (38) and right side displacement transducer (39) are potentiometer type displacement transducer, and the slide plate of left side displacement transducer (38) is even
It is connected on left side nut (341), the slide plate of right side displacement transducer (39) is connected on right side nut (342), described left side
Displacement transducer (38) and right side displacement transducer (39) are by the movement of the left side recording nut (341) and right side nut (342)
Location transmission electron control unit (31).
6. automobile electro-mechanical brake system wheel side according to claim 5 self-powered brake actuator, its feature
It is：Described braking executable portion also includes left side limit switch (310) and right side limit switch (311), described left side
Limit switch (310) is arranged between left side nut (341) and brake pad pad (37), described right side limit switch (311)
It is arranged between right side nut (342) and the inner side of braking clamp body (35).
7. automobile electro-mechanical brake system wheel side according to claim 6 self-powered brake actuator, its feature
It is：Described left side limit switch (310) and right side limit switch (311) are normally opened contact switch, left side screw mandrel (343)
Front end contact so that the closing of contact of left side limit switch (310), left side limit switch with left side limit switch (310)
(310) contact closure information is transferred to electronic control unit (31), the front end of right side screw mandrel (344) and right side limit switch
(311) contact so that the closing of contact of right side limit switch (311), contact closure information is passed by right side limit switch (311)
It is defeated by electronic control unit (31), electronic control unit (31) receives left side limit switch (310) by the information of the closing of contact
Or right side limit switch (311) is by the information of the closing of contact, electronic control unit (31) controls motor (32) power-off.
8. automobile electro-mechanical brake system wheel side according to claim 7 self-powered brake actuator, its feature
It is：Described automobile electro-mechanical brake system wheel side self-powered brake actuator also includes cooling fan (5) and temperature
Degree sensor (6), described cooling fan (5) is arranged on the side of lithium battery (4), described automobile electro-mechanical brake system
It is additionally provided with heat dissipation channel inside the self-powered brake actuator of wheel side, be provided with heat dissipation metal fine-structure mesh in heat dissipation channel, temperature
The temperature surveyed is transferred to electronic control unit (31) by degree sensor (6), and described electronic control unit (31) judges temperature
When reaching certain value, control cooling fan (5) rotation work.
9. automobile electro-mechanical brake system wheel side according to claim 7 self-powered brake actuator, its feature
It is：Described braking clamp body (35) is floating tong type braking clamp body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610965392.4A CN106402205B (en) | 2016-10-28 | 2016-10-28 | Automobile electro-mechanical brake system wheel side self-powered brake actuator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610965392.4A CN106402205B (en) | 2016-10-28 | 2016-10-28 | Automobile electro-mechanical brake system wheel side self-powered brake actuator |
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| CN106402205A true CN106402205A (en) | 2017-02-15 |
| CN106402205B CN106402205B (en) | 2018-11-09 |
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| CN201610965392.4A Active CN106402205B (en) | 2016-10-28 | 2016-10-28 | Automobile electro-mechanical brake system wheel side self-powered brake actuator |
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| CN113915268B (en) * | 2021-11-08 | 2024-04-30 | 龙口市江达汽车配件有限公司 | New energy disc brake disc and application method thereof |
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