CN105035054B - For automobile electro-hydraulic brake system and use its method - Google Patents
For automobile electro-hydraulic brake system and use its method Download PDFInfo
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- CN105035054B CN105035054B CN201510359552.6A CN201510359552A CN105035054B CN 105035054 B CN105035054 B CN 105035054B CN 201510359552 A CN201510359552 A CN 201510359552A CN 105035054 B CN105035054 B CN 105035054B
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000003921 oil Substances 0.000 claims description 120
- 239000010720 hydraulic oil Substances 0.000 claims description 48
- 230000004888 barrier function Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 239000010727 cylinder oil Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 230000007812 deficiency Effects 0.000 abstract description 3
- 239000000446 fuel Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 208000002925 dental caries Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000017531 blood circulation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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
- B60T13/10—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
- B60T13/66—Electrical control in fluid-pressure brake systems
-
- 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
- B60T7/00—Brake-action initiating means
- B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
- Regulating Braking Force (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention discloses a kind of electro-hydraulic brake system for automobile and its method is used, belongs to automotive field.The electro-hydraulic brake system for being used for automobile includes electric hydraulic pump, master cylinder and oil storage tank, the electric hydraulic pump is controlled by the electronic control unit of automobile, and one end of the electric hydraulic pump is connect with oil storage tank, the other end of electric hydraulic pump is connect with master cylinder.It electro-hydraulic brake system provided by the present invention for automobile and uses its method not only and can carry out braking automatically when detecting that there is obstacle in front and can also be automatically so that automobile restores enforcement when preceding object is eliminated.And when the brake force deficiency of the electro-hydraulic brake system for automobile, it can also be by manually trampling brake pedal, to realize human intervention.It is used for the electro-hydraulic brake system of automobile and the design using its method through the invention, has ensured the safety of automobile occupant in the process of moving.
Description
Technical field
The present invention relates to automotive fields, more particularly to are used for the electro-hydraulic brake system of automobile and use its method.
Background technology
In recent years, with the development of the social economy, automobile has been increasingly becoming the main walking-replacing tool of people, and safe driving
Also become the focus of people's growing interest.
Since in the process of moving, driver is kept fixed posture for a long time, and it is tired that poor blood circulation easily causes vision
Labor, it is slow in reacting, drive it is dumb phenomena such as, once there are emergency situations, then can not make immediately correctly judge and reply.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems：When automobile is travelling
In the process, driver has found that front emergency situations occurs and cannot take braking in time, be easy to cause the generation of safety accident.
Therefore, it is necessory to provide it is a kind of be capable of automatic braking for automobile electro-hydraulic brake system and use its side
Method.
Invention content
In order to solve at least one aspect of the above-mentioned problems in the prior art and defect, the present invention provides one kind
For automobile electro-hydraulic brake system and use its method.The technical solution is as follows：
It is an object of the present invention to provide a kind of electro-hydraulic brake systems for automobile.
There is provided a kind of methods using the electro-hydraulic brake system for automobile for a further object of the present invention.
According to an aspect of the invention, there is provided a kind of electro-hydraulic brake system for automobile, the electro-hydraulic brake system
Including electric hydraulic pump, master cylinder and oil storage tank, the electric hydraulic pump is controlled by the electronic control unit of automobile, and institute
The one end for stating electric hydraulic pump is connect with the oil storage tank, and the other end of the electric hydraulic pump is connect with the master cylinder,
In automatic braking, the electronic control unit controls the electric hydraulic pump and hydraulic pressure is sucked out from the oil storage tank
The hydraulic oil is delivered to the master cylinder to realize automatic braking by oil by the electric hydraulic pump later.
Further, the master cylinder includes the first cavity and the second cavity arranged side by side each other, and described first
The front brake cylinder of cavity and automobile connects, and the rear checking cylinder of second cavity and automobile connects,
The electric hydraulic pump is provided with hydraulic pump oil inlet, the first hydraulic pump oil outlet and the second hydraulic pump oil outlet,
The hydraulic pump oil inlet is connected with the oil storage tank, and the first hydraulic pump oil outlet passes through the first oil inlet pipe and first chamber
Body is connected to, and the second hydraulic pump oil outlet is connected to by the second oil inlet pipe with second cavity.
Further, first cavity is provided with the first oil outlet, first oil outlet by the first flowline with
Front brake cylinder connection, second cavity are provided with the second oil outlet, second oil outlet by the second flowline with
Checking cylinder connection after described.
Further, it is provided with the first catch bar in first cavity, first is provided on first catch bar
Piston is provided with the second catch bar in the second cavity, and second piston is provided on second catch bar, and described first pushes
Bar is connect with the second catch bar by adjusting rod.
Further, in automatic braking, the hydraulic oil in first cavity pushes first piston to move and beats simultaneously
The first oil outlet is opened, and the hydraulic oil in the second cavity pushes second piston mobile and opens simultaneously the second oil outlet, by liquid
Pressure oil be supplied respectively to automobile front brake cylinder and rear checking cylinder to realize automatic braking；
After end of braking, the electronic control unit controls the electric hydraulic pump reverse operation, is led from the braking
The hydraulic oil is sucked out in cylinder, and so that the first piston in first cavity is resetted and closes the first oil outlet while making described
Second piston in second cavity resets and closes the second oil outlet, and the hydraulic oil is pumped by the electro-hydraulic and returned later
Into the oil storage tank.
Further, the electro-hydraulic brake system further includes：
Vacuum booster, the electric hydraulic pump, master cylinder and oil storage tank are arranged in the side of the vacuum booster
On, and the first catch bar in the master cylinder is connected with the vacuum booster；
Pedal gear, the pedal gear are used to manually brake and be arranged in the other side of the vacuum booster,
Push rod is controlled, described control push rod one end is connect with pedal gear, and the other end is connect with vacuum booster,
In artificial braking, the pedal gear transfers the pressure to the vacuum booster by the control push rod
In, pressure transmission to first catch bar and is pushed the first piston and described second to live by the vacuum booster later
Plug movement finally realizes braking to open the first oil outlet and the second oil outlet.
Further, the electric hydraulic pump, master cylinder and oil storage tank are fixed on the vacuum servo by support plate
On device.
Further, the pedal gear includes brake pedal, pedal arm and pedal support, the brake pedal with it is described
One end of pedal arm is fixedly connected, and the other end of the pedal arm is fixedly connected with the pedal support, the pedal arm it is upper
Portion is also fixedly connected with the control push rod, and the pedal support is respectively fixedly connected with the support plate and is helped in the vacuum
In the opposite sides of power device.
According to another aspect of the present invention, the above-mentioned electro-hydraulic brake system for automobile is used the present invention also provides a kind of
The method of system, this method include the following steps：
(1) brake signal is transferred to electric hydraulic pump by the electronic control unit of automobile so that electric hydraulic pump is from oil storage
Hydraulic oil is sucked out in tank and is transported to master cylinder；
(2) hydraulic oil from electric hydraulic pump is transported to the front brake cylinder of automobile and rear checking cylinder by master cylinder, real
Existing automatic braking；
(3) after end of braking, the signal for cancelling braking is transferred to electric hydraulic pump by vehicle electronic control unit, electronic
Hydraulic oil is sucked out in hydraulic pump from master cylinder, and hydraulic oil is returned in oil storage tank.
Specifically, the method is further comprising the steps of：
When automatic braking fails or needs manual intervention, pressure is applied by pedal gear, extremely by the pressure transmission
Master cylinder realizes artificial braking.
The advantageous effect of technical solution provided by the invention is：Electro-hydraulic brake system provided by the present invention for automobile and
It can not only be braked automatically when detecting that there is obstacle in front using its method, but also can also when preceding object is eliminated
Enough automatic recovery travelings.And when the brake force deficiency of the electro-hydraulic brake system for automobile, the system of manually trampling can also be passed through
Dynamic pedal, to realize human intervention.It is used for the electro-hydraulic brake system of automobile and the design using its method through the invention, protects
The safety of automobile occupant in the process of moving is hindered.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the electro-hydraulic brake system according to an embodiment of the invention for automobile；
Fig. 2 is the front view of the electro-hydraulic brake system shown in FIG. 1 for automobile；
Fig. 3 is the left side view of the electro-hydraulic brake system shown in FIG. 1 for automobile；
Fig. 4 is the phantom obtained along line B-B cutting in Fig. 3；
Fig. 5 is the phantom obtained along line A-A cutting in Fig. 2；
Fig. 6 is the rearview of the electro-hydraulic brake system shown in FIG. 1 for automobile；
Fig. 7 is the flow of the method according to an embodiment of the invention using the electro-hydraulic brake system for automobile
Figure.
Wherein, 100 electro-hydraulic brake system, 10 electric hydraulic pumps, 11 hydraulic pump oil inlets, 12 first hydraulic pump oil outlets,
13 second hydraulic pump oil outlets, 14 fuel sucking pipes, 15 first oil inlet pipes, 16 second oil inlet pipes, 20 master cylinders, 21 first cavitys,
211 first oil outlets, 212 first flowlines, 22 second cavitys, 221 second oil outlets, 222 second flowlines, 30 oil storage tanks,
41 first catch bars, 42 first pistons, 43 second catch bars, 44 second pistons, 45 resetting springs, 50 vacuum boosters, 60 step on
Trigger structure, 61 brake pedals, 62 pedal arms, 63 pedal supports, 70 control push rods, 80 support plates.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Referring to Fig. 1, it illustrates the electro-hydraulic brake systems 100 according to an embodiment of the invention for automobile.Electricity
Hydraulic brake system 100 includes electric hydraulic pump 10, master cylinder 20 and oil storage tank 30.Specifically, electric hydraulic pump 10 passes through vapour
The electronic control unit ECU (not shown) of vehicle controls, and one end of electric hydraulic pump 10 is connect with oil storage tank 30, electric hydraulic pump
10 other end is connect with master cylinder 20.In automatic braking, electronic control unit controls electric hydraulic pump 10 from oil storage tank
Hydraulic oil is sucked out in 30, hydraulic oil is delivered to realize automatic braking by master cylinder 20 by electric hydraulic pump 10 later.
In the example of the present invention, electric hydraulic pump 10 by the electronic control unit wired connection of control line and automobile, certainly it
Can also be wirelessly connected.
In conjunction with shown in Fig. 1 to Fig. 3, electric hydraulic pump 10 has hydraulic pump oil inlet 11,12 and of the first hydraulic pump oil outlet
Second hydraulic pump oil outlet 13.It is provided with fuel sucking pipe 14 between electric hydraulic pump 10 and oil storage tank 30, the one of the fuel sucking pipe 14
End connection oil storage tank 30, the other end connect hydraulic pump oil inlet 11 so that the hydraulic oil in oil storage tank 30 can pass through fuel sucking pipe
14 transmit back and forth between oil storage tank 30 and electric hydraulic pump 10.It is equipped with the first oil inlet pipe on the first hydraulic pump oil outlet 12
15, which is connected electric hydraulic pump 10 with master cylinder 20；It is assembled on the second hydraulic pump oil outlet 13
There is the second oil inlet pipe 16 so that electric hydraulic pump 10 is connected by the second oil inlet pipe 16 with master cylinder 20 simultaneously.
In conjunction with shown in 4 and Fig. 5, in the example of the present invention, master cylinder 20 includes first be arranged side by side each other
Cavity 21 and the second cavity 22.Wherein the first cavity 21 is connected by the first oil inlet pipe 15 with electric hydraulic pump 10, the second chamber
Body 22 is connected by the second oil inlet pipe 16 with electric hydraulic pump 10.
First cavity 21 has the first oil outlet 211, and the first flowline 212 is equipped on the first oil outlet 211, this
Sample makes the first cavity 21 of master cylinder 20 be connected to the front brake cylinder (not shown) of automobile by the first flowline 212.Tool
For body referring to Fig. 5, it catch bar 41 and the first piston 42 that is arranged on the first catch bar 41 that first is provided in the first cavity 21.
When that need not brake, the first oil outlet 211 is in off state；When automatic braking, make the first catch bar 41 and first piston
42 movements, and the first oil outlet 211 is opened simultaneously, the hydraulic oil in such first cavity 21 is defeated by the first flowline 212
It is sent in the front brake cylinder of automobile, to realize automatic braking.
Referring again to Fig. 4, the second cavity 22 is provided with the second oil outlet 221, and is equipped on the second oil outlet 221
Two flowlines 222, so that the rear checking cylinder that the second cavity 22 of master cylinder 20 passes through the second flowline 222 and automobile
(not shown) is connected to.As shown in figure 5, being provided with the second catch bar 43 in the second cavity 22 and being arranged on the second catch bar 43
Second piston 44.When that need not brake, the second oil outlet 221 is in off state；When automatic braking, make the second catch bar
43 and second piston 44 move, and open simultaneously the second oil outlet 221, the hydraulic oil in such second cavity 22 goes out by second
Oil pipe 222 is transported in the front brake cylinder of automobile, to realize automatic braking.In the example of the present invention, first pushes
Bar 41 and the second catch bar 42 are connected to each other by adjusting rod, and are also set on the first catch bar 41 and the second catch bar 43 respectively
It is equipped with the resetting spring 45 for reset.
It is further illustrated for automobile below by operation principle of the detailed description for the electro-hydraulic brake system of automobile
Electro-hydraulic brake system concrete structure.
In conjunction with shown in Fig. 1 to Fig. 5, in the electro-hydraulic brake system work of the present invention, electric hydraulic pump is connected by control line
It meets vehicle ECU and detects this vehicle speed signal, and pass through front detections of radar vehicle front barrier situation.When this vehicle speed is more than
0 and front when finding barrier, danger exists, and the electronic control unit (ECU) of automobile controls electric hydraulic pump, and makes electronic liquid
Press pump is started to work, and the hydraulic oil in oil storage tank 30 is entered by fuel sucking pipe 14 in electric hydraulic pump 10.Electric hydraulic pump
10 are transported to a part of hydraulic oil in oil storage tank 30 by the first oil inlet pipe 15 first cavity 21 of master cylinder 20
In, while another part hydraulic oil in oil storage tank 30 is transported to the second of master cylinder 20 by the second oil inlet pipe 16
In cavity 22, the pressure in the first cavity 21 and the second cavity 22 gradually increases with increasing for hydraulic oil therein at this time.
When pressure increases to a certain extent, the hydraulic oil in the first cavity 21 pushes the first catch bar 41, and 41 band of the first catch bar
Dynamic first piston 42 moves, and compresses the resetting spring 45 being arranged on the first catch bar 41, and the first oil outlet 211 is beaten at this time
It opens；While the first catch bar 41 is pushed, the second catch bar 43 is pushed by the hydraulic oil in the second cavity 22, and
It drives second piston 44 to move, and compresses the resetting spring 45 being arranged on the second catch bar 43, at this time 221 quilt of the second oil outlet
It opens.
After the first oil outlet 211 and the second oil outlet 221 are opened, the hydraulic oil in the first cavity 21 goes out by first
Oil pipe 212 is transported in the front brake cylinder of automobile, is used for the front wheel brake of automobile；Hydraulic oil simultaneously in the second cavity 22 is logical
It crosses the second oil outlet 222 to be transported in the rear checking cylinder of automobile, is used for the rear service brake of automobile, thereby realizes automobile
Automatic braking.
After end of braking, hydraulic oil is sucked out from master cylinder 20 in electronic control unit control electric hydraulic pump 10, this
Sample makes the hydraulic oil reverse flow in master cylinder 20, to make the hydraulic oil of front brake cylinder also reverse flow and return to
In first cavity 21 of master cylinder 20, while the also reverse flow and back to master cylinder 20 of the hydraulic oil in rear checking cylinder
In second cavity 22.Due to the reverse operation of electric hydraulic pump 10, the hydraulic oil of return gradually increases, and simultaneously because resets bullet
The elastic force of spring 45 acts on, and the first catch bar 41 in the first cavity 21 is made to be pushed, and drives first piston 42 to move and reset,
The first oil outlet 211 is closed at this time；While the first catch bar 41 is pushed, the second catch bar 43 is also pushed, to
It drives second piston 44 to move and resets, and the second oil outlet 221 is closed.
Due to the elastic force effect of resetting spring 45 and the reverse operation of electric hydraulic pump 10, the liquid in the first cavity 21
Hydraulic oil in pressure oil and the second cavity 22 is returned to by electric hydraulic pump 10, fuel sucking pipe 14 into accumulator 30.
Referring to Fig. 6, in another example of the present invention, electro-hydraulic brake system 100 further includes vacuum booster 50, pedal
Mechanism 60 and control push rod 70.The electric hydraulic pump 10, master cylinder 20 and storage are installed in the rear side of vacuum booster 50
Oil tank 30, and the first catch bar 41 in master cylinder 20 is connected with vacuum booster 50；In the front side of vacuum booster pump 50
On be equipped with pedal gear 60 and control push rod 70.In a further embodiment of the present invention, electric hydraulic pump 10, master cylinder 20
It is fixed on vacuum booster 50 by support plate 80 with oil storage tank 30.
Pedal gear 60 includes brake pedal 61, pedal arm 62 and pedal support 63.Pedal support 63 and vacuum booster
50 are fixedly connected, and pedal support 63 and support plate 80 are respectively fixedly connected in the both sides of vacuum booster 50.Brake pedal 61
It is fixedly connected with one end of pedal arm 62, the other end of pedal arm 62 is fixedly connected with pedal support 63, in the branch of pedal arm 62
Point is provided with control push rod 70 (i.e. on the top of pedal arm 62).Design in this way so that when automatic braking failure or
When needing manual intervention, pressure transmission is given control push rod 70, control push rod 70 that will press by brake pedal 61 by pedal arm 62
Power passes to the first catch bar 41 by vacuum booster 50, and the first catch bar 41 drives first piston 42, second to push later
Bar 43 and second piston 44 move, and resetting spring 45 is made to compress, and open simultaneously the first oil outlet and the second oil outlet.It is same with this
When hydraulic oil in oil storage tank 30 vapour is respectively delivered to by the first cavity 21 and the second cavity 22 of master cylinder 20
In the front brake cylinder of vehicle and rear checking cylinder, artificial braking is realized.
When end of braking, the pressure on pedal gear 60 is avoided, at this time the first catch bar 41 in master cylinder 20
With first piston 42 in the elastic force effect of resetting spring 45 and the common work of the return pressure of hydraulic oil from front brake cylinder
With lower reset, and the second catch bar 43 and second piston 44 are also made after the elastic force of its resetting spring 45 is acted on and come from
It is resetted under the collective effect of the return pressure of the hydraulic oil of dynamic cylinder.
The first oil outlet and the second oil outlet are closed during the reset, later in the effect of two resetting springs 45
Under so that the hydraulic oil in hydraulic oil and the second cavity 22 in the first cavity 21 is back in oil storage tank 30.
Referring to Fig. 7, it illustrates the electro-hydraulic brake systems according to an embodiment of the invention using for automobile
The flow chart of method.The method of electro-hydraulic brake system for automobile includes the following steps：
(1) brake signal is transferred to electric hydraulic pump by the electronic control unit of automobile so that electric hydraulic pump is from oil storage
Hydraulic oil is sucked out in tank and is transported to master cylinder；
(2) hydraulic oil from electric hydraulic pump is transported to the front brake cylinder of automobile and rear checking cylinder by master cylinder, real
Existing automatic braking；
(3) after end of braking, the signal for cancelling braking is transferred to electric hydraulic pump by Auto Electronic Controlled System, electronic
Hydraulic oil is sucked out in hydraulic pump from master cylinder, and is transported in oil storage tank.
In the example of the present invention, when automatic braking fails or needs manual intervention, applied by pedal gear
Pressure transmission to master cylinder is realized artificial braking by pressure.
Specifically, in the electro-hydraulic brake system work of the present invention, electric hydraulic pump connects vehicle ECU by control line and examines
This vehicle speed signal is surveyed, and by front detections of radar vehicle front barrier situation, when this vehicle speed is more than 0 and front discovery
When barrier, danger exists, and electric hydraulic pump is started to work, and the hydraulic oil in oil storage tank is sucked out by fuel sucking pipe, then passes through
Go out the first oil inlet pipe and the second oil inlet pipe respectively enters braking master cylinder fuel inlet mouth, fluid flows through master cylinder and separates two-way, respectively
Into preceding brake pipe and rear brake line, it is output to front and back checking cylinder, realizes braking；When this vehicle speed is equal to 0 and front nothing
When barrier, danger disappears, and electric hydraulic pump is reversely started to work, and fluid passes through checking cylinder, oil pipe, master cylinder and electronic liquid
Press pump returns in oil storage tank, and braking is detached from.
The advantageous effect of technical solution provided by the invention is：Electro-hydraulic brake system provided by the present invention for automobile and
It can not only be braked automatically when detecting that there is obstacle in front using its method, but also can also when preceding object is eliminated
Enough automatic recovery travelings.And when the brake force deficiency of the electro-hydraulic brake system for automobile, the system of manually trampling can also be passed through
Dynamic pedal, to realize human intervention.It is used for the electro-hydraulic brake system of automobile and the design using its method through the invention, protects
The safety of automobile occupant in the process of moving is hindered.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of electro-hydraulic brake system for automobile, which is characterized in that
The electro-hydraulic brake system includes electric hydraulic pump, master cylinder and oil storage tank, and the electric hydraulic pump passes through automobile
Electronic control unit controls, and one end of the electric hydraulic pump is connect with the oil storage tank, the electric hydraulic pump it is another
End is connect with the master cylinder,
The electronic control unit that electric hydraulic pump connects the automobile by control line detects this vehicle speed signal, and passes through front
Detections of radar vehicle front barrier situation, when this vehicle speed is more than 0 and front finds barrier, the electronic control unit
It controls the electric hydraulic pump and hydraulic oil is sucked out from the oil storage tank, later by the electric hydraulic pump by the hydraulic oil
The master cylinder is delivered to realize automatic braking；
The master cylinder includes the first cavity and the second cavity arranged side by side each other, and before first cavity and automobile
Checking cylinder connects, and the rear checking cylinder of second cavity and automobile connects,
The electric hydraulic pump is provided with hydraulic pump oil inlet, the first hydraulic pump oil outlet and the second hydraulic pump oil outlet, described
Hydraulic pump oil inlet is connected with the oil storage tank, and the first hydraulic pump oil outlet is connected by the first oil inlet pipe and first cavity
Logical, the second hydraulic pump oil outlet is connected to by the second oil inlet pipe with second cavity；
First cavity is provided with the first oil outlet, and first oil outlet is connected by the first flowline and the front brake cylinder
It connects, second cavity is provided with the second oil outlet, and second oil outlet is connected by the second flowline and the rear checking cylinder
It connects；
It is provided with the first catch bar in first cavity, first piston is provided on first catch bar, in the second chamber
It is provided with the second catch bar in body, second piston is provided on second catch bar, first catch bar and second push
Bar is connected by adjusting rod；
In automatic braking, the hydraulic oil in first cavity pushes first piston mobile and opens simultaneously the first oil outlet,
And the second hydraulic oil in cavity pushes second piston mobile and opens simultaneously the second oil outlet, and hydraulic oil is supplied respectively to vapour
The front brake cylinder of vehicle and rear checking cylinder are to realize automatic braking；
After end of braking, the electronic control unit controls the electric hydraulic pump reverse operation, from the master cylinder
The hydraulic oil is sucked out, and so that the first piston in first cavity is resetted and closes the first oil outlet while making described second
Second piston in cavity resets and closes the second oil outlet, and the hydraulic oil returns to institute by electro-hydraulic pump later
It states in oil storage tank.
2. the electro-hydraulic brake system according to claim 1 for automobile, which is characterized in that
The electro-hydraulic brake system further includes：
Vacuum booster, the electric hydraulic pump, master cylinder and oil storage tank are arranged on the side of the vacuum booster, and
The first catch bar in the master cylinder is connected with the vacuum booster；
Pedal gear, the pedal gear is for manually braking and being arranged in the other side of the vacuum booster；
Push rod is controlled, described control push rod one end is connect with pedal gear, and the other end is connect with vacuum booster；
In artificial braking, the pedal gear is transferred the pressure to by the control push rod in the vacuum booster, it
Pressure transmission to first catch bar and is made first catch bar push the first piston by the vacuum booster afterwards
It is moved with the second piston, braking is finally realized to open the first oil outlet and the second oil outlet.
3. the electro-hydraulic brake system according to claim 2 for automobile, which is characterized in that
The electric hydraulic pump, master cylinder and oil storage tank are fixed on by support plate on the vacuum booster.
4. the electro-hydraulic brake system according to claim 3 for automobile, which is characterized in that
The pedal gear includes brake pedal, pedal arm and pedal support, one end of the brake pedal and the pedal arm
It is fixedly connected, the other end of the pedal arm is fixedly connected with the pedal support, and the top of the pedal arm is also fixedly connected
There is the control push rod, and the pedal support is respectively fixedly connected with the support plate opposite the two of the vacuum booster
On side.
5. a kind of method of electro-hydraulic brake system for automobile of use according to any one of claim 1-4, the party
Method includes the following steps：
(1) brake signal is transferred to electric hydraulic pump by the electronic control unit of automobile so that electric hydraulic pump is from oil storage tank
Hydraulic oil is sucked out and is transported to master cylinder；
(2) hydraulic oil from electric hydraulic pump is transported to the front brake cylinder of automobile and rear checking cylinder by master cylinder, is realized certainly
Dynamic braking；
(3) after end of braking, the signal for cancelling braking is transferred to electric hydraulic pump, electric hydaulic by vehicle electronic control unit
Hydraulic oil is sucked out in pump from master cylinder, and hydraulic oil is returned in oil storage tank.
6. the method according to claim 5 using the electro-hydraulic brake system for automobile, which is characterized in that the method
It is further comprising the steps of：
When automatic braking fails or needs manual intervention, pressure is applied by pedal gear, by the pressure transmission to braking
Master cylinder realizes artificial braking.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510359552.6A CN105035054B (en) | 2015-06-25 | 2015-06-25 | For automobile electro-hydraulic brake system and use its method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510359552.6A CN105035054B (en) | 2015-06-25 | 2015-06-25 | For automobile electro-hydraulic brake system and use its method |
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| CN105035054B true CN105035054B (en) | 2018-08-14 |
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| CN107239069A (en) * | 2017-06-12 | 2017-10-10 | 奇瑞汽车股份有限公司 | A kind of intelligent vehicle line control brake system, brake apparatus and testboard |
| CN111422188A (en) * | 2020-04-09 | 2020-07-17 | 江苏盛海智能科技有限公司 | Unmanned automobile braking structure and braking method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958358A (en) * | 2005-11-03 | 2007-05-09 | 傅建中 | Electrical controlled brake of traveling crane |
| CN201721440U (en) * | 2010-07-14 | 2011-01-26 | 清华大学 | Vacuum pump brake system for self-adaptive electric vehicle |
| CN201856750U (en) * | 2010-10-28 | 2011-06-08 | 常熟理工学院 | Actuating mechanism of automatic brake device for motor vehicle |
| CN102892650A (en) * | 2010-03-31 | 2013-01-23 | 株式会社爱德克斯 | Vehicle brake device |
| CN103303281A (en) * | 2012-03-14 | 2013-09-18 | 浙江万向精工有限公司 | Integrated brake-by-wire system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7063393B2 (en) * | 2001-08-22 | 2006-06-20 | Advics Co., Ltd. | Electronic brake system without pump unit |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1958358A (en) * | 2005-11-03 | 2007-05-09 | 傅建中 | Electrical controlled brake of traveling crane |
| CN102892650A (en) * | 2010-03-31 | 2013-01-23 | 株式会社爱德克斯 | Vehicle brake device |
| CN201721440U (en) * | 2010-07-14 | 2011-01-26 | 清华大学 | Vacuum pump brake system for self-adaptive electric vehicle |
| CN201856750U (en) * | 2010-10-28 | 2011-06-08 | 常熟理工学院 | Actuating mechanism of automatic brake device for motor vehicle |
| CN103303281A (en) * | 2012-03-14 | 2013-09-18 | 浙江万向精工有限公司 | Integrated brake-by-wire system |
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| CN105035054A (en) | 2015-11-11 |
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