CN109552300A - Line control brake system and vehicle - Google Patents
Line control brake system and vehicle Download PDFInfo
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- CN109552300A CN109552300A CN201710884529.8A CN201710884529A CN109552300A CN 109552300 A CN109552300 A CN 109552300A CN 201710884529 A CN201710884529 A CN 201710884529A CN 109552300 A CN109552300 A CN 109552300A
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- brake
- controller
- motor
- line control
- pedal
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Regulating Braking Force (AREA)
Abstract
This disclosure relates to a kind of line control brake system and vehicle.The line control brake system includes pedal signal collector, two dynamo-electric brakes, controller, intermediate motor, and described two dynamo-electric brakes are for braking two front-wheels, and the intermediate motor is for driving and braking two rear-wheels；Or, described two dynamo-electric brakes are for braking two rear-wheels, the intermediate motor is for driving and braking two front-wheels, the intermediate motor includes two motor bodies and two the first electromagnetic clutch, each first electromagnetic clutch is used to brake the motor shaft of corresponding motor body, and the controller is used to control the dynamo-electric brake and intermediate motor according to the pedal signal.Lack through the above technical solutions, the disclosure is made to be capable of providing a kind of be mechanically connected, it is simple for structure without hydraulic brake line, it is small in size, it is easy to arrange on vehicle, and can be effectively reduced the line control brake system of complete vehicle quality.
Description
Technical field
This disclosure relates to motor vehicle braking system, and in particular, to a kind of line control brake system.
Background technique
Line control brake system, that is, electrically controlled brake system is divided into mechanical line control brake system and fluid pressure type brake-by-wire
System.
Mechanical line control brake system (abbreviation EMB) is completely different with traditional brake fluid system.Traditional hydraulic system
Dynamic System Development has been highly developed technology so far.With the continuous improvement that people require braking ability, ANTI LOCK
The functions such as system (ABS), traction control system (TCS), electronic stability control program (ESP), active collision avoidance technology (ACC)
It is gradually dissolved into braking system, more and more additional mechanism providing additional operations are installed in brake line, this makes brake system structure more
Add complexity, also increases the hidden danger of hydraulic circuit leakage and the difficulty of assembly, maintenance.Therefore structure is simpler, function more may be used
The common recognition that traditional brake fluid system has become automobile industry is finally replaced in the mechanical line control brake system leaned on.
Summary of the invention
Purpose of this disclosure is to provide a kind of line control brake systems simple for structure, suitable for arranging on vehicle.
To achieve the goals above, the disclosure provides a kind of line control brake system, including pedal signal collector, two electricity
Dynamic brake, controller, intermediate motor, described two dynamo-electric brakes are used for for braking two front-wheels, the intermediate motor
Two rear-wheels of driving and braking；Alternatively, described two dynamo-electric brakes are for braking two rear-wheels, the intermediate motor is for driving
Dynamic and two front-wheels of braking, the intermediate motor include two motor bodies and two the first electromagnetic clutch, each first electricity
Magnet clutch is used to brake the motor shaft of corresponding motor body, and the controller is used for according to pedal signal control
Dynamo-electric brake and intermediate motor.
Optionally, the pedal signal collector includes pedal displacement sensor and/or pedal force sensor.
Optionally, the line control brake system further includes whole vehicle state collector, and the controller according to for stepping on
Described in the collected pedal signal of partitioned signal collector and the collected whole vehicle state signal control of the whole vehicle state collector
Dynamo-electric brake and intermediate motor.
Optionally, the whole vehicle state collector includes longitudinal acceleration sensor, lateral acceleration sensor, yaw angle
One or more of velocity sensor, steering wheel angle sensor and wheel speed sensors.
Optionally, the controller includes central controller, the first controller, second controller, the central controller
It is electrically connected respectively with first controller and second controller, first controller is for controlling described two electrodynamic brakings
Device, the second controller receive the pedal signal and pass through vehicle for controlling the intermediate motor, the central controller
Support grid network receives the whole vehicle state signal.
Optionally, the system comprises electronic pedal, which includes brake pedal, pedal simulator, pedal mould
Quasi- device controller and the pedal signal collector, the pedal signal collector are electrically connected with the pedal simulator controller
It connects, the pedal simulator controller is electrically connected with the central controller.
Optionally, the pedal simulator controller is also electrically connected with first controller and second controller respectively.
Optionally, first electromagnetic clutch includes electromagnet, translational friction piece and rotary friction pad, the electromagnet
Including fixed core, dynamic iron core and the driving spring for acting on the dynamic iron core, the rotary friction pad is rotated with the motor shaft,
The translational friction piece can move under the driving of the dynamic iron core.
Optionally, first electromagnetic clutch further includes outer race and inside race, the inside race and the motor shaft
Spline connection, the rotary friction pad are arranged on the inside race, the electric machine casing of the outer race and the intermediate motor
The connection of inner wall spline, the translational friction piece is arranged on the outer race.
Optionally, the dynamo-electric brake is disk brake, which includes braking clamp body, the first braking
Block, motor, retarder and screw body, the motor are external rotor electric machine, and the stator of the motor, which has, to be axially extended
Cavity, the screw body includes screw rod and the nut that is sleeved on the screw rod, and the screw rod runs through the cavity, described
The rotor of motor drives the screw rod rotation by the retarder, so that the nut is moved axially along the screw rod, thus
Push first brake block mobile to compress brake disc.
Optionally, the disk brake is disc brake with floating caliper, and the disk brake further includes the second brake block,
First brake block and the second brake block are located at the brake disc two sides, and second brake block is mounted on the braking
On caliper.
Optionally, the disk brake further includes the second electromagnetic clutch of a shaft for retarder described in locking
Device, second electromagnetic clutch are identical as the first electromagnetic clutch structure.
Optionally, the retarder is that beat bores poor planetary reduction gear, and the rotor of the motor and the beat bore poor row
The ring gear of star retarder is connected, and the output shaft that the beat bores poor planetary reduction gear is connected with the screw rod, and the shaft is
The beat bores the input shaft of poor planetary reduction gear.
Optionally, the disk brake further includes piston, and the piston is slidably fitted in one end of the cavity, described
The other end of the cavity is arranged in retarder, and the nut pushes first brake block mobile by the piston.
Lack through the above technical solutions, the disclosure is made to be capable of providing a kind of be mechanically connected, without hydraulic brake line, knot
Structure is succinct, small in size, is easy to arrange on vehicle, and can be effectively reduced the line control brake system of complete vehicle quality.
The disclosure also provides a kind of vehicle, including line control brake system as described above.
Other feature and advantage of the disclosure will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Attached drawing is and to constitute part of specification for providing further understanding of the disclosure, with following tool
Body embodiment is used to explain the disclosure together, but does not constitute the limitation to the disclosure.In the accompanying drawings:
Fig. 1 is the schematic illustration according to the line control brake system of an embodiment of the present disclosure；
Fig. 2 is the cross-sectional view of intermediate motor；
Fig. 3 is the partial enlarged view of Fig. 2；
Fig. 4 is the cross-sectional view of dynamo-electric brake；
Fig. 5 is the partial enlarged view of Fig. 4；
Fig. 6 is the structural schematic diagram that beat bores poor planetary reduction gear.
Specific embodiment
It is described in detail below in conjunction with specific embodiment of the attached drawing to the disclosure.It should be understood that this place is retouched
The specific embodiment stated is only used for describing and explaining the disclosure, is not limited to the disclosure.
According to one aspect of the disclosure, as shown in Figure 1, providing a kind of line control brake system, including electronic pedal 200,
Controller, two dynamo-electric brakes 410, intermediate motor 420.
Electronic pedal 200 includes brake pedal 210, pedal simulator 220 and pedal signal collector 230.Pedal simulation
Device 220 provides pedal sense (pedal reaction force and pedal travel) similar with Conventional braking systems for driver, can be by
Brake operating is carried out according to oneself habit and experience.The manipulation that pedal signal collector 230 is used to monitor driver is intended to, can be with
Using pedal displacement sensor or pedal force sensor, can also both use simultaneously, to avoid single type sensor common-mode
The influence of failure, is conducive to fault diagnosis.
Two dynamo-electric brakes 410 can be two front wheel brakes, or two rear wheel brakes.When two electricity
When dynamic brake 410 is two front wheel brakes, intermediate motor 420 is for driving and braking two rear-wheels 520；When two it is electronic
When brake 410 is two rear wheel brakes, intermediate motor 420 is for driving and braking two front-wheels 510.
As shown in Figures 2 and 3, intermediate motor 420 includes electric machine casing 421, two electricity being arranged in electric machine casing 421
Machine ontology 422 and two the first electromagnetic clutch 423, two motor bodies 422 be respectively used to driving two wheels, each first
Electromagnetic clutch 423 is used to brake the motor shaft 4221 of corresponding motor body 422.
Pedal signal collector 230 is by collected pedal signal (for example, pedal acceleration, pedal displacement, pedal force are big
It is small etc.) it is transferred to controller, according to the pedal signal, on the one hand control dynamo-electric brake 410 generates corresponding braking to controller
Power, the motor body 422 on the other hand controlling intermediate motor 420 complete torque responsive, and control the first electricity of intermediate motor 420
Magnet clutch 423 generates corresponding enclasping force to hold motor shaft 4221 tightly, realizes service brake or parking braking.
Optionally, as shown in Figures 2 and 3, the first electromagnetic clutch 423 may include electromagnet, translational friction piece 4235,
Rotary friction pad 4236, outer race 4237 and inside race 4238.Wherein, electromagnet may include fixed core 4232, dynamic iron core
4233 and act on the driving spring 4234 of dynamic iron core 4233.Inside race 4238 is connect with motor shaft 4221 by spline slide,
Rotary friction pad 4236 is arranged on inside race 4238 can rotate under the drive of motor shaft 4221.Outer race 4237 and electricity
The inner wall of casing body 421 is connected by spline slide, and translational friction piece 4235 is arranged on outer race 4237 with can be along motor
The axial translation of axis 4221.Fixed core 4232 and dynamic iron core 4233 can be all formed as cyclic structure, and 4233 sets of dynamic iron core
It is located at the outside of motor shaft 4221, fixed core 4232 is set in the outside of dynamic iron core 4233, so that the structure of intermediate motor 420 is more
Compact, axial dimension is smaller.When electromagnet power loss, the magnetic attraction between fixed core 4232 and dynamic iron core 4233 disappears, and moves iron
Core 4233 moves right under the action of driving spring 4234, and translational friction piece 4235 and rotary friction pad 4236 is pushed to connect
It closes, frictional force between the two holds motor shaft 4221 tightly.It is supplied to the size of current of electromagnet by controlling, can control
The magnetic attraction between iron core 4232 and dynamic iron core 4233 is formulated, thus the enclasping force of the first electromagnetic clutch 423 of control.
Lack through the above technical solutions, the disclosure is made to be capable of providing a kind of be mechanically connected, without hydraulic brake line, knot
Structure is succinct, small in size, is easy to arrange on vehicle, and can be effectively reduced the line control brake system of complete vehicle quality.
In the disclosure, in order to improve braking stationarity and safety, the line control brake system can also include vehicle
State acquisition device 800, controller are also used to control electronic system according to the collected whole vehicle state signal of whole vehicle state collector 800
Dynamic device 410 and intermediate motor 420.That is, controller should receive the collected pedal of pedal signal collector 230 letter
Number, the collected whole vehicle state signal of whole vehicle state collector 800 is received again, and it is each that these comprehensive signals calculate each wheel
From optimum braking force required in real time, reach optimal braking effect.Specifically, controller can by In-vehicle networking (for example,
TTP/C network, CAN network, Flex ray network etc.) receive whole vehicle state collector 800 signal.
Here, whole vehicle state collector 800 may include longitudinal acceleration sensor, lateral acceleration sensor, sideway
One or more of angular-rate sensor, steering wheel angle sensor and wheel speed sensors.Correspondingly, whole vehicle state signal can
To include in longitudinal acceleration signal, transverse acceleration signal, yaw rate signal, steering wheel angle signal and wheel speed signal
One of or more persons.
In the disclosure, controller can be one, or multiple.In order to improve braking response speed, controller
It may include central controller 310, the first controller 320, second controller 330, wherein the first controller 320 is for controlling
Two dynamo-electric brakes 410, second controller 330 are controlled with first respectively for controlling intermediate motor 420, central controller 310
Device 320 and second controller 330 electrical connection processed.Central controller 310 receives pedal signal and receives vehicle by In-vehicle networking
Status signal for determining driver intention or judging Full Vehicle Dynamics state, and controls signal and is sent to the first control
Device 320 and second controller 330.Second controller 330 receives the control signal from central controller 310, controls intermediate electricity
The motor body revolving speed of machine 420 completes torque responsive, and the electromagnetic clutch for controlling intermediate motor 420 hold tightly motor shaft 4221 with
Generate desired target braking force.First controller 320 receives the control signal from central controller 310, controls electronic
Brake 410 generates corresponding brake force.
Optionally, electronic pedal 200 can also include the pedal simulator for the motor in control pedal simulator 220
Controller 240, pedal signal collector 230 are electrically connected with pedal simulator controller 240, pedal simulator controller 240 with
Central controller 310 is electrically connected, and the collected pedal signal of pedal signal collector 230 can pass through pedal simulator controller
240 are transmitted to central controller 310.It should be noted that can also be by pedal signal collector 230 and central controller 310
It is directly electrically connected, so that pedal signal is directly transferred to central controller 310.
Further, pedal simulator controller 240 can also respectively with the first controller 320 and second controller 330
Electrical connection, so that pedal signal can be transmitted to the first controller 320 and second controller by pedal simulator controller 240
330.In this way, so that braking system can also complete the braking work on basis when central controller 310 breaks down
Can, improve braking safety.
Specifically, the line control brake system can also include for dynamo-electric brake 410, intermediate motor 420, first
Controller 320, second controller 330, central controller 310, electronic pedal 200 and the electricity of whole vehicle state collector power supply
Source 600.Appended drawing reference 700 represents power interface.
The course of work of the line control brake system according to an embodiment of the present disclosure is briefly described below in conjunction with Fig. 1.
After driver's brake pedal, pedal acceleration, displacement and pedal are detected by pedal signal collector
The brake command signals such as the size of power (that is, pedal signal), central controller receive brake command signal by In-vehicle networking, and
The signal of other sensors (that is, whole vehicle state collector) under comprehensive current vehicle driving status calculates each wheel respectively
Optimum braking force required in real time.The control signal control dynamo-electric brake that first controller receives central controller output generates
Corresponding brake force realizes braking.The control signal that second controller receives central controller output controls the motor of intermediate motor
Ontology completes torque responsive, and the first electromagnetic clutch for controlling intermediate motor generates corresponding enclasping force to hold motor tightly
Axis.
In the disclosure, used dynamo-electric brake 410 can have any suitable structure.In a kind of embodiment
In, as shown in Figures 4 to 6, the dynamo-electric brake 410 can be disk brake, and make including braking clamp body 10, first
Motion block 31, motor 40, retarder 50 and screw body 60.First brake block 31 and the second brake block 32 are located at braking
The two sides of disk 20.Motor 40 is external rotor electric machine, and the stator 41 of motor 40 is formed with the cavity 411 axially extended.Screw rod machine
Structure 60 includes screw rod 61 and the nut 62 being sleeved on screw rod 61, and screw rod 61 runs through cavity 411, and the rotor 42 of motor 40 is by subtracting
Fast device 50 drives screw rod 61 to rotate, so that nut 62 is moved axially along screw rod 61, to push the first brake block 31 mobile and press
It comes in brake disc 20.
In above-mentioned disk brake, by the way that screw body to be integrated in the inside of motor, the axial direction of brake is reduced
Length, so that brake structural is more compact, occupied space is smaller, convenient for the mounting arrangements on vehicle.
Above-mentioned disk brake can be disc brake with fixed caliper, or disc brake with floating caliper.
In the case where above-mentioned disk brake is disc brake with floating caliper, which further includes the second brake block
32, which is mounted on braking clamp body 10, and braking clamp body 10 can be moved axially relative to brake disc 20.Specifically
Ground, as shown in Figure 4 and Figure 5, when executing service brake, the rotor 42 of motor 40 drives screw rod 61 to rotate by retarder 50, with
It is moved to the left nut 62 along screw rod 61, so that the first brake block 31 is pushed also to be moved to the left and be pressed in brake disc 20, in
It is brake disc 20 to the reaction force of 62 1, nut to the right, nut 62 is made to move right together with braking clamp body 10 is whole, until
Second brake block 32 also presses against in brake disc 20.At this moment the brake block 31,32 of two sides is all pressed in brake disc 20, to clamp
Brake disc 20 generates the moment of friction for preventing vehicle wheel rotation, realizes service brake.
Optionally, screw body 60 can be rolling lead screw mechanism.Using rolling lead screw mechanism, nut 62
Rolling element, such as ball or roller are provided between screw rod 61.Further, screw body 60 can be planetary roller screw rod
Mechanism.Compared to other screw bodies, planetary roller screw body big, strong shock resistance, transmission accuracy with receiving load
The advantages of height, long service life.
In addition, also optionally, screw body 60 can be ball wire rod mechanism.Using the beneficial effect of ball wire rod mechanism
It is similar with the above-mentioned effect using planetary roller screw rod, herein in order to avoid repeating, omit its description.But the disclosure is not
It is defined in this, screw body 60 can also be using sliding screw mechanism etc..When using sliding screw mechanism, screw pair can be made
Lead angle be greater than Self-locking angle, to guarantee that it is self-locking that screw pair will not occur, thus release braking when can pass through brake disc
The return of nut is realized to the active force of brake block.
In one embodiment, above-mentioned disk brake can also include piston 90, which is slidably fitted in sky
One end of chamber 411, retarder 50 are arranged in the other end of cavity 411 and are connected with screw rod 61, and nut 62 is pushed by piston 90
First brake block 31 is mobile.In this embodiment, piston 90 separates the inside of cavity 411 with the external world, so that screw rod machine
Structure 60 is in a relatively closed environment, avoids the erosion by outside water, impurity, and extend brake uses the longevity
Life.
In order to avoid the movement to piston 90 forms resistance, piston 90 can be with 411 clearance fit of cavity, that is to say, that
The diameter of cavity 411 can be slightly larger than the diameter of piston 90.It in this case, can be in piston 90 in order to guarantee leakproofness
Sealing ring 100 is set between the inner wall of cavity 411.
Here, nut 62 can be fixed together by the modes and piston 90 such as being spirally connected, welding, be glued.However, in order to keep away
Exempt to generate stress concentration in junction, in one embodiment, nut 62 is not connected to piston 90, when executing service brake,
Nut 62 pushes piston 90 mobile, and piston 90 pushes the first brake block 31 to be pressed in brake disc 20 again.Piston 90 can be in one
End seal closes the open tubular structure of the other end, and the inner wall clearance fit in piston 90 and with piston 90 can be set in nut 62,
When executing service brake, the thrust of nut 62 is in the closed end of piston 90 to push piston 90 mobile towards brake disc 20.
In other embodiments, nut 62 can also directly drive the movement of the first brake block 31, without piston is arranged
90。
Optionally, thrust bearing 70 can be installed on screw rod 61.In one embodiment, it is formed on screw rod 61 convex
Edge, thrust bearing 70 are arranged between flange and the shell of retarder 50.When brake block clamps brake disc 20, retarder 50
Shell applies axial force to screw rod 61 by thrust bearing 70 with balanced system Moving plate 20 to the reaction force of screw rod 61, guarantees screw rod
61 stress balances.
In the disclosure, retarder 50 can use the retarder of any suitable type, as long as can be by the defeated of motor 40
Torque reduction passes to screw rod 61 after increasing square out.In one embodiment, retarder 50 can bore poor planet for beat
Retarder.
Fig. 6 is the structural schematic diagram that beat bores poor planetary reduction gear, mainly by rotating bevel gear 1, beat bevel gear 2, defeated
Enter the compositions such as beat generator H and the circumferential limitation pair on axis 5.Wherein beat generator H has drift angle by the end of input shaft 5
The spindle nose 6 and tapered roller bearing 7 of Σ is constituted.Bevel gear 2 is equivalent to an internal bevel gear, with the cone tooth on output shaft 9
1 composition internal messing of wheel, one end of beat bevel gear 2 is on the tapered roller bearing 7 at drift angle spindle nose 6, other end spherical surface
Bearing 8 is connect with the shaft end of output shaft 9 composition flexural pivot.The vertex of a cone of two bevel gears is overlapped with the center O point of spherical bearing, in beat
The outer rim of bevel gear 2 is equipped with cydariform outer gear ring 3, circumferentially limits pair with 4 groups of ring gear.
Beat bores the transmission principle of poor planetary reduction gear are as follows: when input shaft 5 drives drift angle spindle nose 6 around the fixing axle of input shaft
When line nn is rotated, the axes O O of drift angle spindle noseHJust forming a cone-apex angle is 2 Σ cone-beam spaces.Due on drift angle spindle nose 6
The constraint secondary by circumferential limitation of beat bevel gear 2, turnover movement cannot be done, this cone-beam movement of drift angle spindle nose just forces
Beat bevel gear 2 makees circulation beat movement around O point, forms engaging for circulation folding with the rotating bevel gear 1 on output shaft 9
State.In shown position, two bevel gears top is in full meshing state, and forms full disengaged condition in lower part.But when drift angle turns over
180 ° to position A ' when, two bevel gears lower part is in full meshing state, and top is in full disengaged condition.When drift angle spindle nose turns over again
180 ° when being returned to original position, are exactly completed a beat engagement circulation.The process that spindle nose is rotated around fixed axis nn in drift angle
In, the gear teeth of beat bevel gear are along the circumferential direction recycled into and exit engagement, make region of engagement along the pitch cone of output bevel gear wheel
Transfer.
In the case where boring poor planetary reduction gear using beat, the rotor 42 of motor 40 with poor planetary reduction gear can be bored with beat
The ring gear 4 of device is connected, and the output shaft 9 that beat bores poor planetary reduction gear can be connected with screw rod 61, and electromagnetic clutch 8 is mounted on
Beat is bored on the input shaft 5 of poor planetary reduction gear.That is, ring gear 4 bores the input terminal of poor planetary reduction gear as beat,
Output shaft 9 bores the output end of poor planetary reduction gear as beat.
In the disclosure, in order to make brake while there is parking braking function, in one embodiment, such as Fig. 4 institute
Show, the brake can also include the second electromagnetic clutch 80, which is mounted on the one of retarder 50
In a shaft, the locking to retarder 50 is realized by shaft described in 80 locking of the second electromagnetic clutch, to realize parking
Braking.For example, second electromagnetic clutch 80 can pacify when retarder 50 bores poor planetary reduction gear using beat as described above
Bore the input shaft 5 of poor planetary reduction gear mounted in beat, and being capable of the locking input shaft 5.The structure and work of second electromagnetic clutch
Making principle can be identical as the first electromagnetic clutch, and details are not described herein.
Optionally, retarder 50 can be set between motor 40 and the second electromagnetic clutch 80, so that brake knot
Structure is compact, shape is regular.
In one embodiment, motor 40, retarder 50 and the second electromagnetic clutch 80 can be contained in same housing
In 110, which can be for example fixed together by fastener with braking clamp body 10, and clutch housing 81 can be fixed
In shell 110.
According to another aspect of the present disclosure, a kind of vehicle is provided, which uses line control brake system as described above.
In conclusion the line control brake system of the disclosure has the advantage that one, mechanical connection is few, without hydraulic braking
Pipeline can effectively reduce complete vehicle quality；It is simple for structure, it is small in size, it is easy to arrange；Two, using being mechanically and electrically, signal is passed
It passs rapidly, braking response is fast, is quick on the draw；Three, transmission efficiency is high, saves the energy；Four, electronic intelligence control function is powerful, can
The automatically controlled of the complexity such as ABS, TCS, ESC, ACC is realized to configure relevant parameter by the software program in modification controller
Function, and be easy to and the new-energy automobile with brake energy recovering system is matched；Five, whole system can use mould
Blocking structure, assembly is simple, easy to maintenance；Six, using electronic pedal, the machinery of brake pedal and brake actuator is eliminated
And hydraulic connecting, on the one hand, brake pedal does not have rebound vibration when executing the movement such as ABS, improves braking comfort, separately
On the one hand, when vehicle collides, impact force will not be passed in driver's cabin by braking system, improve the passive of automobile
Safety；Seven, there is no hydraulic brake line and brake fluid, there is no hydraulic oil and hydraulic fluid leak is replaced, be conducive to ring
It protects, electromechanical braking system is without not recoverable parts, to environment almost without pollution.
The preferred embodiment of the disclosure is described in detail in conjunction with attached drawing above, still, the disclosure is not limited to above-mentioned reality
The detail in mode is applied, in the range of the technology design of the disclosure, a variety of letters can be carried out to the technical solution of the disclosure
Monotropic type, these simple variants belong to the protection scope of the disclosure.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the disclosure to it is various can
No further explanation will be given for the combination of energy.
In addition, any combination can also be carried out between a variety of different embodiments of the disclosure, as long as it is without prejudice to originally
Disclosed thought equally should be considered as disclosure disclosure of that.
Claims (15)
1. a kind of line control brake system, which is characterized in that including pedal signal collector (230), two dynamo-electric brakes
(410), controller, intermediate motor (420),
Described two dynamo-electric brakes (410) for brake two front-wheels (510), the intermediate motor (420) for drive and
Brake two rear-wheels (520)；Alternatively, described two dynamo-electric brakes (410) are for braking two rear-wheels (520), the centre
Motor (420) is used to driving and braking two front-wheels (510),
The intermediate motor (420) include two motor bodies (422) and two the first electromagnetic clutch (423), each first
Electromagnetic clutch (423) is used to brake the motor shaft (4221) of corresponding motor body (422), and the controller is used for according to institute
It states pedal signal and controls the dynamo-electric brake (410) and intermediate motor (420).
2. line control brake system according to claim 1, which is characterized in that the pedal signal collector (230) includes
Pedal displacement sensor and/or pedal force sensor.
3. line control brake system according to claim 1, which is characterized in that the line control brake system further includes vehicle shape
State collector (800), the controller are used for according to the collected pedal signal of the pedal signal collector (230) and described
The collected whole vehicle state signal of whole vehicle state collector (800) controls the dynamo-electric brake (410) and intermediate motor
(420)。
4. line control brake system according to claim 3, which is characterized in that the whole vehicle state collector (800) includes
Longitudinal acceleration sensor, lateral acceleration sensor, yaw-rate sensor, steering wheel angle sensor and wheel speed sensing
One or more of device.
5. line control brake system according to claim 3, which is characterized in that the controller includes central controller
(310), the first controller (320), second controller (330), the central controller (310) respectively with first controller
(320) and second controller (330) electrical connection, first controller (320) are used to control described two dynamo-electric brakes
(410), the second controller (330) receives institute for controlling the intermediate motor (420), the central controller (310)
It states pedal signal and the whole vehicle state signal is received by In-vehicle networking.
6. line control brake system according to claim 5, which is characterized in that the system comprises electronic pedal (200), should
Electronic pedal (200) includes brake pedal (210), pedal simulator (220), pedal simulator controller (240) and described steps on
Partitioned signal collector (230), the pedal signal collector (230) are electrically connected with the pedal simulator controller (240), institute
Pedal simulator controller (240) is stated to be electrically connected with the central controller (310).
7. line control brake system according to claim 6, which is characterized in that the pedal simulator controller (240) is also
It is electrically connected respectively with first controller (320) and second controller (330).
8. line control brake system according to claim 1, which is characterized in that first electromagnetic clutch (423) includes
Electromagnet, translational friction piece (4235) and rotary friction pad (4236), the electromagnet include fixed core (4232), dynamic iron core
(4233) and the driving springs (4234) of the dynamic iron core (4233) is acted on, the rotary friction pad (4236) is with the motor
Axis (4221) rotation, the translational friction piece (4235) can move under the driving of the dynamic iron core (4233).
9. line control brake system according to claim 8, which is characterized in that first electromagnetic clutch (423) is also wrapped
Outer race (4237) and inside race (4238) are included, the inside race (4238) connect with the motor shaft (4221) spline, described
Rotary friction pad (4236) is arranged on the inside race (4238), the outer race (4237) and the intermediate motor (420)
Electric machine casing (421) the connection of inner wall spline, the translational friction piece (4235) is arranged on the outer race (4237).
10. line control brake system according to claim 1, which is characterized in that the dynamo-electric brake (410) is disc type system
Dynamic device, which includes braking clamp body (10), the first brake block (31), motor (40), retarder (50) and screw rod
Mechanism (60), the motor (40) are external rotor electric machine, and the stator (41) of the motor (40) has the cavity axially extended
(411), the screw body (60) includes screw rod (61) and the nut (62) being sleeved on the screw rod (61), the screw rod
(61) run through the cavity (411), the rotor (42) of the motor (40) drives the screw rod by the retarder (50)
(61) it rotates, so that the nut (62) is moved axially along the screw rod (61), so that first brake block (31) be pushed to move
It moves to compress brake disc (20).
11. line control brake system according to claim 10, which is characterized in that the disk brake is floating caliper type disc system
Dynamic device, the disk brake further includes the second brake block (32), first brake block (31) and the second brake block (32) point
Not Wei Yu brake disc (20) two sides, second brake block (32) is mounted on the braking clamp body (10).
12. line control brake system according to claim 10, which is characterized in that the disk brake further includes for locking
Only the second electromagnetic clutch (80) of a shaft of the retarder (50), second electromagnetic clutch (80) and described the
One electromagnetic clutch (423) structure is identical.
13. line control brake system according to claim 12, which is characterized in that the retarder (50) is that beat bores poor row
The rotor (42) of star retarder, the motor (40) is connected with the ring gear (4) that the beat bores poor planetary reduction gear, described inclined
The output shaft (9) that pendulum bores poor planetary reduction gear is connected with the screw rod (61), and the shaft is that the beat bores poor planetary reduction gear
The input shaft (5) of device.
14. line control brake system according to claim 10, which is characterized in that the disk brake further includes piston
(90), the piston (90) is slidably fitted in one end of the cavity (411), and the retarder (50) is arranged in the cavity
(411) the other end, the nut (62) push first brake block (31) mobile by the piston (90).
15. a kind of vehicle, which is characterized in that including line control brake system described according to claim 1 any one of -14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710884529.8A CN109552300A (en) | 2017-09-26 | 2017-09-26 | Line control brake system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710884529.8A CN109552300A (en) | 2017-09-26 | 2017-09-26 | Line control brake system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109552300A true CN109552300A (en) | 2019-04-02 |
Family
ID=65863129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710884529.8A Pending CN109552300A (en) | 2017-09-26 | 2017-09-26 | Line control brake system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109552300A (en) |
Cited By (1)
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| CN115257674A (en) * | 2022-07-15 | 2022-11-01 | 重庆长安汽车股份有限公司 | Braking structure, braking system, automobile and design method |
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