CN106938644A - Vehicle and vehicle composite braking system - Google Patents
Vehicle and vehicle composite braking system Download PDFInfo
- Publication number
- CN106938644A CN106938644A CN201710155840.9A CN201710155840A CN106938644A CN 106938644 A CN106938644 A CN 106938644A CN 201710155840 A CN201710155840 A CN 201710155840A CN 106938644 A CN106938644 A CN 106938644A
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- CN
- China
- Prior art keywords
- electric rotating
- rotating machine
- braking system
- master cylinder
- composite braking
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Classifications
-
- 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
- B60T13/10—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 fluid assistance, drive, or release
- B60T13/12—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 fluid assistance, drive, or release the fluid being liquid
- B60T13/14—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 fluid assistance, drive, or release the fluid being liquid using accumulators or reservoirs fed by pumps
- B60T13/148—Arrangements for pressure supply
-
- 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
- B60T13/745—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 acting on a hydraulic system, e.g. a master cylinder
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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
- 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)
- Braking Systems And Boosters (AREA)
Abstract
The present invention provides a kind of vehicle and vehicle composite braking system, has：First electric rotating machine, is provided as brake pedal brake feel feedback mechanism；Second electric rotating machine, is provided as braking booster body；First electric rotating machine has first rotating shaft；Second electric rotating machine has the second rotating shaft；Brakes also includes a coupler being arranged between the first electric rotating machine and the second electric rotating machine, and the coupler includes：For the first rotary body of the rotating shaft for being connected to the first electric rotating machine；For the second rotary body of the rotating shaft for being connected to the second electric rotating machine；Wherein, the first rotary body can independently rotate with the second rotary body under the drive of the first electric rotating machine and/or the second electric rotating machine, and with space on the two direction of rotation；Space can be taken by the operating condition adjustment of the first electric rotating machine and/or the second electric rotating machine and be reduced or eliminated.The reliability of the composite braking system of the present invention is high, good stability.
Description
Technical field
The present invention relates to motor vehicle braking system, revolved in particular to one kind using with feedback electric rotating machine and supercharging
Rotating motor simultaneously realizes mechanically decoupled composite braking system using coupler.
Background technology
Motor vehicle braking system is the key that support vehicles are normal, drive safely.Brakes mainly includes power supply device, control
Device processed, transmission device and brake tetrabasal, master cylinder is the key in transmission device, and it is typically mounted at before automobile
Portion, close to the position of driver's cabin or enging cabin, realizes the conversion of power and hydraulic pressure, as energy conversion device, in driver
Or under the control of automated driving system/DAS (Driver Assistant System), together with wheel cylinder, realize the braking of vehicle.In general vehicle
On, it is typically that piston is controlled by brake pedal (or push rod of booster), the power that brake pedal and booster are produced is converted to
Corresponding hydraulic pressure, is pressed into wheel cylinder, so as to produce the brake force of braking maneuver with certain pressure.
EHB is improved and developed on the basis of traditional brake fluid system, is included
One electronic brake pedal assembly, compared with traditional hydraulic braking pedal, it passes through pedal sensor such as displacement transducer
Or angular transducer, the demand (such as order of importance and emergency) of driver's control pedal can be accurately perceived, or based on upper
The braking requirement of ECU such as automated driving system/DAS (Driver Assistant System)s, brakes ECU is passed to by corresponding electric signal,
ECU automatically adjusts the brake pressure of wheel according to different braking requirements, can avoid hydraulic machinery brakes effect counter-force
Caused vibration and cause driver unconsciously to reduce the danger of brake force.Meanwhile, using electro-hydraulic system also more added with
Evade beneficial to the security risk for realizing driving, with less response time.
The content of the invention
The present invention is directed to propose a kind of vehicle composite braking system, including：
Brake pedal；
Connecting rod, is connected with the brake pedal, and the connecting rod has corresponding when being provided in the brake pedal motion
Stroke；
Motion sensor, for perceiving the motion state when brake pedal is trampled；
Master cylinder, with least one can the cylinder body activity of master cylinder piston；
First electric rotating machine, is provided as brake pedal brake feel feedback mechanism, in response to the brake pedal
Move and be driven in rotation to produce the resistance for hindering the brake pedal further to move, the connecting rod transmits the resistance
To brake pedal；
Second electric rotating machine, is provided as braking booster body, and be driven in rotation is used to promote master cylinder to produce
Piston movement thrust, compressed liquid is produced in response to thrust that the braking booster body is produced for the piston of the master cylinder
Raw hydraulic pressure；
Wherein：First electric rotating machine has first rotating shaft；Second electric rotating machine has the second rotating shaft；The vehicle is answered
Closing brakes also includes a coupler being arranged between the first electric rotating machine and the second electric rotating machine, and the coupler includes：
For being connected to the rotating shaft of the first electric rotating machine and the first rotary body of rotation can be driven by it；For being connected to second rotation
The rotating shaft of rotating motor and the second rotary body that rotation can be driven by it；Wherein, first rotary body and the second rotary body are in institute
State and can independently be rotated under the drive of the first electric rotating machine and/or the second electric rotating machine, and with sky on the two direction of rotation
Gap；The space can be taken by the operating condition adjustment of first electric rotating machine and/or the second electric rotating machine and be reduced or eliminated；
Also, when being kept in the space, mechanically decoupled state is kept between the brake pedal and master cylinder, is disappeared in the space
Except when, mechanically decoupled status releasing between brake pedal and master cylinder.
From above technical scheme, vehicle composite braking system proposed by the present invention is made especially with electric rotating machine
To brake force feedback motor and using electric rotating machine as the EHB of booster electric machine, using new coupler
Realize mechanically decoupled between brake pedal and piston/booster of master cylinder, two rotatable parts is with booster electric machine
With feedback motor and synchronous axial system, and by retaining a fixed gap in the rotation direction of coupler so that between coupling block
Position can change with the different operating mode of vehicle, especially in normal brake application state, brake force is not enough state and other are different
Under normal state, the control to abnormality can be realized by the coupler and the releasing of risk is braked so that brake safe
It is protected.Meanwhile, it is also possible that whole system no longer uses hydraulic booster device or vacuum boosting using the coupler
Device, and directly using the electric rotating machine of simple and technology maturation as supercharging device and brake feel feedback analog device, easily
Realize mechanically decoupled, and be more prone in control to realize multi-functional and stability guarantee.
As long as it should be appreciated that all combinations of aforementioned concepts and the extra design described in greater detail below are at this
A substrate of the subject matter of the disclosure is can be viewed as in the case that the design of sample is not conflicting.In addition, required protect
All combinations of the theme of shield are considered as a substrate of the subject matter of the disclosure.
Can be more fully appreciated with from the following description with reference to accompanying drawing present invention teach that foregoing and other aspect, reality
Apply example and feature.The feature and/or beneficial effect of other additional aspects such as illustrative embodiments of the present invention will be below
Description in it is obvious, or by according to present invention teach that embodiment practice in learn.
Brief description of the drawings
Accompanying drawing is not intended to drawn to scale.In the accompanying drawings, each identical or approximately uniform group shown in each figure
It can be indicated by the same numeral into substrate.For clarity, in each figure, not each composing base is labeled.
Now, by example and the embodiments of various aspects of the invention will be described in reference to the drawings, wherein：
Fig. 1 is the schematic diagram of the motor vehicle braking system according to certain embodiments of the invention.
Fig. 2 is the schematic diagram of the coupler according to certain embodiments of the invention, side view.
Fig. 3 is the schematic diagram of the feedback fraction (first substrate) of the coupler according to certain embodiments of the invention, front view.
Fig. 4 is the schematic diagram of the compression portion (second substrate) of the coupler according to certain embodiments of the invention, front view.
Fig. 5 is the drive mechanism schematic diagram of the supercharging transmission mechanism according to certain embodiments of the invention.
Fig. 6 is the drive mechanism schematic diagram of supercharging transmission mechanism according to another embodiment of the present invention.
Embodiment
In order to know more about the technology contents of the present invention, especially exemplified by specific embodiment and institute's accompanying drawings are coordinated to be described as follows.
Each side with reference to the accompanying drawings to describe the present invention in the disclosure, shown in the drawings of the embodiment of many explanations.
Embodiment of the disclosure must not be intended to include all aspects of the invention.It should be appreciated that a variety of designs presented hereinbefore and reality
Apply example, and those designs described in more detail below and embodiment can in many ways in any one come real
Apply, because design disclosed in this invention and embodiment are not limited to any embodiment.In addition, disclosed by the invention one
A little aspects can be used alone, or otherwise any appropriately combined be used with disclosed by the invention.
With reference to shown in Fig. 1, Fig. 2, the EHB 100 in for motor vehicle brakes, especially Fig. 1, tool
There are brake pedal 101, connecting rod 102, returning spring 103, angular transducer 104, pedal gear 105, pedal force feedback electricity
Machine 106, coupler 108, booster electric machine 110, supercharging transmission mechanism 111, master cylinder 112 and supplement flow container 120, also include
The brakes ECU being connected with master cylinder 112, feedback motor 106, booster electric machine 110 and angular transducer 104 is (for just
In description and brief description, hereinafter referred to as ECU) 130.ECU integrally controls brakes as the control axis of brakes
Operation is with realizing.
In the above of the invention and each embodiment being described below, feedback motor 106 and booster electric machine 110 are
Electric rotating machine.
As shown in figure 1, master cylinder 112 has two voltage supply export pipeline 112a and 112b, for output hydraulic pressure to system
Driving wheel cylinder (is not indicated), so that required brake force is produced, to apply control for brake to wheel.
Master cylinder 112 operationally from replenisher filling 120 by voltage supply entrance pipe 120a and 120b to braking led by nationality
Supplement brake fluid in the cylinder body of cylinder 112.
In some example implementations, when brake pedal 101 is trampled by driver, i.e., driven by brake pedal
When (braking requirement) is expected in the expected braking for the person of sailing, rotated by connecting rod 102, angular transducer 104 gathers the fortune of pedal
Dynamic signal (such as the anglec of rotation and embody) based on the connecting rod collected simultaneously sends pedal travel signal to ECU 130, ECU
The supercharging power-assisted output of booster electric machine 110 and feedback motor 106 is controlled to provide to the feedback of pedal, supercharging according to braking requirement
The output of motor 110 transfers force to rotation brake master cylinder via transmission mechanisms such as guide rods, so that the appearance of master cylinder 112
Product is changed, so as to cause the output of hydraulic pressure, hydraulic pressure is output to after wheel cylinder by brake such as disk brake or drum-type
Brake performs braking maneuver, so as to realize pedal brake.And the output for feeding back motor 106 is then applied to connecting rod 102 and braking
On pedal 101, simulating brake is felt.
Such as Fig. 1, returning spring 103, as recovery mechanism, is arranged between 106 motors of feedback and brake pedal 101, and
With the trend for making brake pedal return to original state.Returning spring 103, especially torsionspring, can the company of being provided in
On bar 102, particularly for providing the power for hindering connecting rod to be moved with brake pedal, and with so that connecting rod returns to initial shape
The trend of state.In particular it is preferred that the axle of spring of torsionspring is parallel with the shaft axis for feeding back motor 106 or positioned at same
On one straight line.
In certain embodiments, multiple foregoing returning springs 103 can also be set.
In optional example, such returning spring 103 collectively or individually provides obstruction braking with feedback motor 106
The resistance that pedal 101 advances is fed back with giving brake feel to driver.
With reference to Fig. 1, angular transducer 104 is arranged for gathering the movable information of brake pedal 101, so as to be driven
The braking requirement for the person of sailing and expection.Certainly, in certain embodiments, the collection or braking of the movable information of brake pedal 101
The collection of demand can also be by other means to realize, the collection for example changed based on pedal travel (passes through displacement sensing
Device), or realized by the collection (by force snesor) for the pressure being applied on pedal, but these citings are not intended to limit
The implementation of the fixed present invention.
Pedal gear 105, is arranged between brake pedal 101 and feedback motor 106, the rotating shaft for feeding back motor
With being transmitted with the torque between the direct-connected connecting rod 102 of brake pedal, so as to be delivered on brake pedal 101.
Pedal gear 105, for example can be using gear (such as epicyclic gearing, fixed axis gear deceleration dress
Put) either side steering or combinations thereof.
In certain embodiments, brakes 100 can also be not provided with such pedal gear 105, and cause anti-
The rotating shaft of generating aid 106 is directly connected to (by parts such as bearings) with connecting rod 102.
Similarly, supercharging transmission mechanism 111, between the rotating shaft of booster electric machine 110 and the piston rod of master cylinder 112
Torque transmission.
Transmission mechanism 111 is pressurized, in particular by change speed transmission mechanism, for example, gear or deflecting machine can be used
Structure, or combinations thereof.
In certain embodiments, brakes 100 can also be not provided with such supercharging transmission mechanism 111, and be so that
The rotating shaft of booster electric machine 110 is directly connected to (by parts such as bearings) with the piston rod of master cylinder 112, direct drive braking master
The piston rod movement of cylinder 112.
Master cylinder 112, is in the example depicted in figure 1 rotary-type master cylinder, with roughly annular cylinder body and is set
Put substantially coaxial and can be driven in cylinder body and the rotating shaft that rotates with cylinder center line in cylinder body, ear be provided with rotating shaft,
The revolving force that rotary shaft is exported by the output shaft (rotating shaft) of booster electric machine drives and rotated, or by supercharging transmission as the aforementioned
Rotated after mechanism 111 by driving, so as to cause the hydraulic pressure in circular cylinder to change, output hydraulic pressure to wheel cylinder produces braking
Power.
In other examples, such master cylinder 113 can be also configured to linear pattern master cylinder, foregoing booster electric machine
The revolving force of 110 outputs is changed by force transfer mechanism, such as the conversion from rotary motion to linear motion pushes away it
The piston rod of dynamic such as traditional hydraulic cylinder is so that piston movement, causes the hydraulic pressure in brake cylinder casing to change, output hydraulic pressure is arrived
Wheel cylinder produces brake force.
With reference to shown in Fig. 1, Fig. 2, in the braking function implementation process of the brakes, it is arranged on a coupler 108
It is mechanically decoupled for realizing between pedal brake force feedback motor 106 and booster electric machine 110.
Such as Fig. 2, coupler 108 includes the first substrate 108a being connected with the rotating shaft of feedback motor 106 and electric with supercharging
The second substrate 108b of the rotating shaft connection of machine 110.First substrate 108a is oppositely disposed with second substrate 108b.
With reference to shown in Fig. 2, Fig. 3, Fig. 4, first substrate 108a, as rotary body, the rotating shaft 106a with feedback motor 106 is same
Step rotation.
Second substrate 108b, as rotary body, the rotating shaft 110a synchronous rotaries with booster electric machine 110.
At least one coupling block 109 is respectively arranged with first substrate 108a and second substrate 108b relative surface,
These coupling blocks 109 leave space so that having at least one first position between coupling block 109 on the direction along rotation
And at least one second place, in first position, the first substrate and/or second substrate independently rotate, in second
Put, the first substrate and second substrate rotate jointly.
With reference to shown in Fig. 2, Fig. 3 and Fig. 4, in first substrate 108a and second substrate 108b, when wherein a side rotates through one
Determine after angle, could be contacted with the opposing party, and drive it to rotate jointly.That is, the space of foregoing direction of rotation can
Nationality is by booster electric machine and/or feeds back the operating condition adjustment of motor and is reduced or eliminated.When being kept in space, brake pedal and system
Mechanically decoupled state is kept between dynamic master cylinder, when being eliminated in space, mechanically decoupled state solution between brake pedal and master cylinder
Remove.
Certainly, multiple coupling blocks 109 can be set in each foregoing substrate surface (108a, 108b).
In some instances, foregoing first substrate 108a and second substrate 108b is configured to tray type structure.
Alternatively, coupling block 109 is configured to cam or crank block.
For example, ECU is controlled according to the abnormality of booster electric machine 110 and/or the pressure anomaly state of master cylinder 112
The rotation of adjustment feedback motor 106, for example, provide the torque output and/or rotating speed of the second electric rotating machine, so that coupler 108
Coupling block on first substrate 108a is combined (now, mechanically decoupled status releasing) with the coupling block on second substrate 108b, from
And make it that first substrate 108a drives second substrate 108b to rotate jointly when being driven rotation.
With reference to shown in Fig. 1, Fig. 2, the internal pressure of master cylinder 112 can be monitored and be delivered in real time by sensor
ECU, ECU judge whether the pressure in master cylinder reaches demand according to braking requirement, and it is (different in pressure not reach demand
When often), feedback motor 106 can also be controlled to be used as additional mechanical supercharging motor, its movement velocity and direction is controlled, drive coupling
The first substrate 108a motions of clutch 108 so that coupling block is combined, so that mechanically decoupled status releasing, and thus enter one
Step provides the supercharging driving force aided in booster electric machine 110 (such as because the supercharging driving of booster electric machine offer is not enough so that system
Pressure anomaly in dynamic master cylinder), so as to strengthen the reliability and stability of brakes.
Meanwhile, for example fail or abnormal detecting booster electric machine 110, such as electricity shortage, without power supply, circuit therefore
When barrier, as the aforementioned, ECU will control the feedback motor 106 as additional mechanical supercharging motor to use, and control it to move
Speed and direction, the first substrate 108a motions of drive coupler 108 so that coupling block is combined, so that mechanically decoupled shape
State is released, and thus further provides for supercharging driving force to booster electric machine 110, so as to strengthen the reliability and stably of brakes
Property.
Meanwhile, in other examples, when booster electric machine 110, feedback motor 106 fail or exception when, for example for
When electric not enough, no power supply, line fault, brake pedal 101 can be further trampled by driver and causes connecting rod
Rotate, and drive the pivot of feedback motor 106, now particularly necessary is to set the pedal gear 105 in Fig. 1,
So as to the rotation of the drive shaft with less power, and the further first substrate 108a motions of drive coupler 108 so that coupling
Agllutination is closed to close, so that mechanically decoupled status releasing, drives the rotating shaft rotation of booster electric machine 110, so that braking supercharging is realized,
The complete failure of brakes when 2 motors fail is avoided, reduces the harm that braking risk is brought.
When feedback motor 106 fails or be abnormal, as the aforementioned, still bullet can for example be replied by foregoing recovery mechanism
Spring 103 realizes certain Brake feedback.
In certain embodiments, in order to prevent that feedback motor 106 from braking risk caused by failing, we can also set two
Feedback motor more than individual is connected, with the reliability under raising efficiency and offer failure mode.
Similarly, in order to prevent that booster electric machine 110 from braking risk caused by failing, we can also set the increasing of more than two
Medium-voltage Motor is connected, with the reliability under raising efficiency and offer failure mode.
In embodiments of the invention, with reference to shown in Fig. 5, Fig. 6, it is preferably by it, supercharging transmission mechanism 111 uses planet
Geared system 140 realizes, epicyclic gearing 140 and the rotating shaft arranged coaxial of booster electric machine 110.
As shown in figure 5, with reference to Fig. 1, in one example, the direct driving force input of epicyclic gearing 140 is supercharging electricity
The rotating shaft 110a of machine 110.In this example, epicyclic gearing has gear ring 140a, planet carrier 140b, sun gear 140c and planetary gear
140d, gear ring 140a is fixed, and the rotating shaft 110a (i.e. output shaft) of booster electric machine 110 is connected with sun gear 140c, can drive the sun
Wheel rotation, planet carrier 140b is connected with planetary gear 140d, and second substrate 108b and the rotating shaft of booster electric machine of coupler 108
110a connections, planet carrier 140b provides power output to the pushing part of master cylinder as clutch end, for example, rotate master cylinder
Rotating shaft or linear pattern master cylinder piston rod (needing the direction transformation mechanism through exertin).
In such embodiments, coupler is connected with the rotating shaft of booster electric machine, simple in construction, it is easy to accomplish.
As shown in fig. 6, with reference to Fig. 1, in another example, the direct driving force input of epicyclic gearing is booster electric machine
110 rotating shaft and coupler 108 (second substrate 108b).
In this example, epicyclic gearing has gear ring 140a, planet carrier 140b, sun gear 140c and planetary gear 140d, OK
Carrier 140b is fixed, and the rotating shaft (i.e. output shaft) of booster electric machine 110 is connected with sun gear 140c, sun gear can be driven to rotate, OK
Carrier 140b is connected with planetary gear 140d, and the second substrate 108b of coupler is connected with the rotating shaft 110a of booster electric machine 110,
Gear ring 140a provides power output to the pushing part of master cylinder as clutch end, for example, rotate the rotating shaft or straight of master cylinder
The piston rod of line style master cylinder (needs the direction transformation mechanism through exertin, including but not limited to cam drive, rack-and-pinion is passed
Motivation structure, crank driving mechanism etc.).So to strengthen coupler-booster electric machine-supercharging transmission mechanism 111.
Although the present invention is disclosed above with preferred embodiment, so it is not limited to the present invention.Skill belonging to of the invention
Has usually intellectual in art field, without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations.Cause
This, the scope of protection of the present invention is defined by those of the claims.
Claims (17)
1. a kind of vehicle composite braking system, it is characterised in that including：
Brake pedal；
Connecting rod, is connected with the brake pedal, and the connecting rod has corresponding stroke when being provided in the brake pedal motion；
Motion sensor, for perceiving the motion state when brake pedal is trampled；
Master cylinder, with least one can the cylinder body activity of master cylinder piston；
First electric rotating machine, is provided as brake pedal brake feel feedback mechanism, in response to the motion of the brake pedal
And be driven in rotation to produce the resistance for hindering the brake pedal further to move, the connecting rod transmits the resistance to system
Dynamic pedal；
Second electric rotating machine, is provided as braking booster body, is driven in rotation to produce the work for being used for promoting master cylinder
Fill in the thrust of motion, the piston of the master cylinder compressed liquid generation liquid in response to thrust that the braking booster body is produced
Pressure；
Control unit, first electric rotating machine and the second electric rotating are controlled for the motion state in response to the brake pedal
The operation of machine；
Wherein：First electric rotating machine has first rotating shaft, is configured to its output shaft；Second electric rotating machine has second turn
Axle, is configured to its output shaft；The vehicle composite braking system is also arranged on the first electric rotating machine and the second electric rotating including one
Coupler between machine, the coupler includes：For being connected to the rotating shaft of the first electric rotating machine and the of rotation can be driven by it
One rotary body；For being connected to the rotary shaft of second electric rotating machine and the second rotary body of rotation can be driven by it；Wherein,
First rotary body can independently revolve with the second rotary body under the drive of first electric rotating machine and/or the second electric rotating machine
Turn, and with space on the two direction of rotation；The space can be taken by first electric rotating machine and/or the second electric rotating
The operating condition of machine is adjusted and is reduced or eliminated；Also, when being kept in the space, between the brake pedal and master cylinder
Mechanically decoupled state is kept, when being eliminated in the space, mechanically decoupled status releasing between brake pedal and master cylinder.
2. vehicle composite braking system according to claim 1, it is characterised in that first rotary body and the second rotation
Body can independently rotate and a side rotated through and contacted after certain angle with the opposing party wherein, and drive it to rotate jointly.
3. vehicle composite braking system according to claim 1, it is characterised in that first rotary body and the second rotation
At least one coupling block is provided with body, between these coupling blocks have at least one first position and at least one second
Position, in first position, first rotary body and/or the second rotary body independently rotate, in the second place, first rotation
Swivel and the second rotary body rotate jointly.
4. vehicle composite braking system according to claim 1, it is characterised in that the vehicle composite braking system is also wrapped
At least one recovery mechanism is included, with the trend for making the brake pedal return to original state.
5. vehicle composite braking system according to claim 4, it is characterised in that at least one described recovery mechanism and institute
Stating the first electric rotating machine and collectively or individually providing hinders the resistance of the brake pedal advance to be braked to be given to driver
Sense feedback.
6. vehicle composite braking system according to claim 1, it is characterised in that the pedal and first electric rotating
A pedal gear is also set up between machine, the torque transmission between the rotating shaft and connecting rod for the first electric rotating machine.
7. vehicle composite braking system according to claim 1, it is characterised in that the output shaft of second electric rotating machine
Between master cylinder also have a deceleration transmission mechanism, for the second electric rotating machine rotating shaft and master cylinder piston rod it
Between torque transmission.
8. vehicle composite braking system according to claim 1, it is characterised in that the master cylinder includes linear pattern master
One kind in cylinder or rotary-type master cylinder.
9. vehicle composite braking system according to claim 1, it is characterised in that the output shaft of second electric rotating machine
Is directly connected to the piston rod of master cylinder
10. vehicle composite braking system according to claim 7, it is characterised in that the supercharging transmission mechanism include with
The epicyclic gearing of the rotating shaft arranged coaxial of second electric rotating machine.
11. vehicle composite braking system according to claim 10, it is characterised in that the epicyclic gearing has tooth
Circle, planet carrier, sun gear and planetary gear, gear ring are fixed, and the output shaft of second electric rotating machine is connected with sun gear, can be driven
Sun gear is rotated, and the Part II of the coupler is coupled through coupler with the rotating shaft of the second electric rotating machine, the coupling
The torque of the Part I of device is delivered to the rotating shaft of the second electric rotating machine by coupler, and then is delivered to sun gear, the row
Carrier provides power output to the piston rod of master cylinder as clutch end.
12. vehicle composite braking system according to claim 10, it is characterised in that the epicyclic gearing has tooth
Circle, planet carrier, sun gear and planetary gear, planet carrier are fixed, and the output shaft of second electric rotating machine is connected with sun gear, can be driven
Dynamic sun gear is rotated, and the Part II of the coupler is coupled through coupler with the rotating shaft of the second electric rotating machine, coupler
The torque of Part I the rotating shaft of the second electric rotating machine is delivered to by coupler, and then be delivered to sun gear, the gear ring
Power output is provided to the piston rod of master cylinder as clutch end.
13. vehicle composite braking system according to claim 10, it is characterised in that the supercharging transmission mechanism include with
The fixed axis gear deceleration device of the rotating shaft of second electric rotating machine not arranged coaxial, the output shaft and dead axle of second electric rotating machine
The input connection of mechanical reduction gear, and rotating shaft of the Part II through coupler and the second electric rotating machine of the coupler
Coupling, the torque of the Part I of the coupler is delivered to the rotating shaft of the second electric rotating machine by coupler, and then is delivered to
The input of deceleration device, the output end of fixed axis gear deceleration device provides power to the piston rod of master cylinder.
14. vehicle composite braking system according to claim 1, it is characterised in that set in the composite braking system
There is first electric rotating machine of at least two series connection.
15. vehicle composite braking system according to claim 1, it is characterised in that set in the composite braking system
There is second electric rotating machine of at least two series connection.
16. vehicle composite braking system according to claim 1, it is characterised in that the vehicle composite braking system is also
Include the pressure sensor of the in-cylinder pressure for detecting the master cylinder；
Described control unit is in response to the abnormality of second electric rotating machine and/or the pressure anomaly state control of master cylinder
The rotation of system adjustment first electric rotating machine is so that the mechanically decoupled status releasing.
17. a kind of vehicle, it is characterised in that with the vehicle composite braking system described in any one in claim 1-16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710155840.9A CN106938644B (en) | 2017-03-16 | 2017-03-16 | Vehicle and vehicle composite braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710155840.9A CN106938644B (en) | 2017-03-16 | 2017-03-16 | Vehicle and vehicle composite braking system |
Publications (2)
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| CN109204283A (en) * | 2018-10-29 | 2019-01-15 | 华东交通大学 | A kind of electronic hydraulic brake system obtaining braking intention based on motor |
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| CN106938644B (en) | 2023-05-02 |
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