CN209600475U - Motor vehicle braking system - Google Patents
Motor vehicle braking system Download PDFInfo
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- CN209600475U CN209600475U CN201920369501.5U CN201920369501U CN209600475U CN 209600475 U CN209600475 U CN 209600475U CN 201920369501 U CN201920369501 U CN 201920369501U CN 209600475 U CN209600475 U CN 209600475U
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- cylinder piston
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Abstract
The utility model discloses a kind of motor vehicle braking systems, main includes including pressure pump, first pressure pipe, second pressure pipe, brake pressure pipe, wheel braking device, master cylinder, entering pressure hole, out pressure hole and braking control device, to realize the effect that can form relatively large braking auxiliary force using smaller braking urging force, can be fully applicable in the braking of larger load-carrying, the higher commercial vehicle of required braking force and special vehicle；Braking control device is further devised simultaneously, including brake pedal, master cylinder piston, return spring, displacement drive mechanism, electrical control mechanism, pipe valve, realize that vehicle artificially brakes the double brake ability with electric signal braking, to can be applicable on automatic driving vehicle and advanced auxiliary driving function vehicle.
Description
Technical field
The utility model relates to a kind of motor vehicle braking systems, and in particular to one kind can also can both be made automatically taking human as braking
It is dynamic, while can be applied to need the motor vehicle braking system under the application scenarios of larger brake force compared with heavy-duty quality.
Background technique
The braking system of autonomous driving vehicle is directly related to the safety problem of automatic driving vehicle, autonomous driving vehicle
Braking system should realize artificial active brake ability, while should also have nobody automatic braking ability, i.e., " people is from one
The stopping power of body ".
, it can be achieved that the product of " people is from integrally " stopping power is only able to satisfy, smaller to brake request, load-carrying is lighter at present
On passenger vehicle.And it is larger for load-carrying, brake pressure, system forced area are more demanding, and the higher car of safety requirements,
The vehicles such as public transport and lorry, current product and technology are not able to satisfy its requirement completely, to restrict load-carrying vehicle auxiliary
Drive the development and application with automatic Pilot technology.
Utility model content
To solve the above-mentioned problems, the utility model offer has the vehicle of high brake pressure and reliable " people is from integrally "
Braking system.
A kind of motor vehicle braking system, comprising:
Pressure pump, first pressure pipe, second pressure pipe, brake pressure pipe, wheel braking device, master cylinder, entering pressure hole,
Hole and braking control device are pressed out,
Wherein, pressure pump presses hole to be connected to entering pressure hole, out respectively by first pressure pipe, second pressure pipe, wherein into pressure
Hole goes out the setting of pressure hole on master cylinder,
Pressure pump, second pressure pipe, entering pressure hole, goes out the pressure that pressure hole forms closed loop with master cylinder at first pressure pipe
Circuit,
Braking control device is connect with master cylinder,
One end of brake pressure pipe connects wheel braking device, other end connection connection pressure circuit.
The braking control device includes brake pedal, master cylinder piston, return spring, displacement drive mechanism, automatically controlled machine
Structure, pipe valve,
Wherein, the lower end of master cylinder piston is connect with return spring, when master cylinder piston stress is subjected to displacement, after stress is eliminated,
By the effect of return spring, master cylinder piston can return to situ,
It is also connect simultaneously with displacement drive mechanism outside the upper end of master cylinder piston, displacement drive mechanism is by electrical control mechanism control
System, operation master cylinder piston are subjected to displacement up and down,
The lower end of master cylinder piston is connected with pipe valve, and when master cylinder piston downlink, pipe valve is with downlink, and occluding pressure returns
Road, the pressure increase of master cylinder, acts on wheel braking device.
Wherein, the displacement drive mechanism includes first gear, second gear and third gear,
First gear is spur gear, is nested in outside the output shaft of electrical control mechanism,
Third gear is helical gear, is nested in the outside of master cylinder piston,
Second gear is inside and outside bidentate wheel construction, and wherein external tooth is engaged with first gear, and internal tooth is engaged with third gear,
The longitudinal width of third gear is greater than the longitudinal width of second gear, to guarantee the length travel of third gear
Range.
In addition, the displacement drive mechanism includes the 4th gear and corresponding rack gear arrangement,
4th gear is nested in the outside of the output shaft of electrical control mechanism,
Rack gear arrangement is nested in the outside of master cylinder piston, external to engage with the 4th gear.
The braking control device can also include displacement sensor, and displacement sensor is located in master cylinder wall and master
The cylinder piston is corresponding, is monitored to the displacement occurrence quantity of master cylinder piston and master cylinder.
The brake pressure pipe is connect with the first pressure pipe in pressure circuit.It can also be on the master cylinder
Brake pressure delivery outlet is set, and brake pressure pipe is connect with brake pressure delivery outlet.
The pressure pump is hydraulic oil pump, or vacuum air pump.
It can also include first bearing and the second axis in order to which structure is more consolidated with durable, described braking control device
It holding, first bearing housing is located at the upper end of displacement drive mechanism on master cylinder piston,
Second bearing housing is located at the lower end of displacement drive mechanism on master cylinder piston.
Detailed description of the invention
Fig. 1 is motor vehicle braking system first embodiment schematic diagram
Fig. 2 is motor vehicle braking system second embodiment schematic diagram
Fig. 3 is braking control device embodiment three-dimensional structure diagram
Fig. 4 is braking control device embodiment section structure chart
Fig. 5 is braking control device first embodiment displacement drive mechanism side block diagram
Fig. 6 is braking control device first embodiment displacement drive mechanism overlooking structure figure
Fig. 7 is braking control device second embodiment displacement drive mechanism side block diagram
Specific embodiment
The motor vehicle braking system of the utility model is described in detail with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram of motor vehicle braking system first embodiment, and Fig. 2 is that motor vehicle braking system second embodiment is shown
It is intended to, comprising:
Pressure pump 100, first pressure pipe 200, second pressure pipe 300, brake pressure pipe 400, wheel braking device 500,
Master cylinder 600, goes out pressure hole 800 and braking control device 900 at entering pressure hole 700,
Wherein, pressure pump 100 by first pressure pipe 200, second pressure pipe 300 respectively with entering pressure hole 700, go out pressure hole
800 connection, wherein entering pressure hole 700, go out pressure hole 800 be arranged on master cylinder 600,
Pressure pump 100, second pressure pipe 300, entering pressure hole 700, goes out pressure hole 800 and master cylinder at first pressure pipe 200
600 form the pressure circuit of closed loop,
Braking control device 900 is connect with master cylinder 600,
One end of brake pressure pipe 400 connects wheel braking device 500, and the other end connects in pressure circuit.
By the effect of pressure pump 100, carry out pressures cycle always in pressure circuit, when braking control device 900 by
After external force, closes the entering pressure hole 700 of master cylinder 600 or go out pressure hole 800, so that pressure circuit is closed, to make
Pressure in brake pressure pipe 400 increases, the final stopping power for realizing vehicle.
This is relied on, according to the installation site of brake pressure pipe 400, first embodiment and second embodiment can be divided into,
Wherein first embodiment such as Fig. 1, brake pressure pipe 400 are arranged on first pressure pipe 200, when entering pressure hole 700 or
After pressure hole 800 is closed out, then the pressure increase of brake pressure pipe 400 is driven, realizes the braking of vehicle.
According to fig. 2, brake pressure pipe 400 is arranged on master cylinder 600, when using second embodiment, needs to be arranged
Closing is pressure hole 800.
According to the embodiment above, braking control device 900 can be thus achieved artificial pedal brake ability, while can be with
It is controlled by extraneous electric signal and carries out stopping power.To meet aforementioned capabilities, which additionally provides a set of with the function
The braking control device 900 of energy, such as Fig. 3 and Fig. 4, including brake pedal 910, master cylinder piston 920, return spring 930, displacement biography
Motivation structure 940, electrical control mechanism 950, pipe valve 960,
Wherein, the lower end of master cylinder piston 920 is connect with return spring 930, when master cylinder piston 920 is by brake pedal 910
Or displacement drive mechanism 940 pressure when, active piston 920 is subjected to displacement downwards, pipe valve 960 will go out pressure hole 800 be truncated,
The pressure in master cylinder 600 and first pressure pipe 200 is set to start to increase, to further improve in brake pressure pipe 400
Pressure, finally make wheel braking device 500 work, realize the braking of vehicle.
When brake pedal 910 and displacement drive mechanism 940 be not when acting on master cylinder piston 920,920 stress of master cylinder piston disappears
After removing, by the effect of return spring 930, master cylinder piston 920 is back to original position, and brake circuit is got through, and circuit, which pushes, to be reduced
To normal, the pressure back to normal of brake pressure pipe 400, so that the wheel braking device 500 of vehicle be made to return back to normality, vehicle can
Maintenance normally travel.
For displacement drive mechanism 940 design scheme there are mainly two types of.
The first makes cross force be converted to longitudinal force, the advantage of the program is automatically controlled by the way of helical teeth transmission
Motor is used with device as longitudinal topology layout, reduces the space requirement of system entirety, specific structure such as Fig. 5 and Fig. 6, packet
First gear 941, second gear 942 and third gear 943 are included,
First gear 941 is spur gear, and nesting is fixed on outside the output shaft of electrical control mechanism 950,
Third gear 943 is helical gear, and nesting is fixed on the outside of master cylinder piston 920,
Second gear 942 is inside and outside bidentate wheel construction, and wherein external tooth is engaged with first gear 941, internal tooth and third gear
943 engagements,
The longitudinal width of third gear 943 is greater than the longitudinal width of second gear, to guarantee the longitudinal direction of third gear
Displacement range.
When electrical control mechanism 950 is controlled work by external electric signal, first gear 941 can be with the output of electrical control mechanism 950
Axis rotates together, and second gear 942 is rotated with first gear 941, and the internal tooth of second gear 942 acts on third gear 943
On, drive third gear 943 to rotate, since third gear 943 is helical gear, so also occurring that while lateral rotation
Bottom offset, to complete the switch of pipe valve 960, realizes the stopping power of vehicle so that master cylinder piston 920 be driven to move up and down.
Second scheme then uses the structure of rack-and-pinion, as shown in fig. 7, comprises the 4th gear 944 and rack gear arrangement
945,
Wherein the 4th gear 944 is fixed on outside the output shaft of electrical control mechanism 950,
Rack gear arrangement 945 is nested in the outside of master cylinder piston 920, external to engage with the 4th gear 944.
When the rotation of the 4th gear 944, drive rack device 945 is moved up and down, to drive on master cylinder piston 920
The switch of pipe valve 960 is completed in lower movement.It is that structure is simple, but electrical control mechanism 950 is needed relative to the maximum advantage of the first sets of plan
Landscape layout is wanted, to space requirement height.
In order to more preferably more accurately control the open amount of pipe valve, position can also be set in the braking control device 900
Displacement sensor 610, displacement sensor 610 is located in 600 wall of master cylinder, so as to the displacement in real time to master cylinder piston 920
Variable quantity carries out detection control.
According to the difference of pressure source, the pressure pump 100 both can be hydraulic oil pump, or vacuum air pump or
Using the pressure-generating device of other modes.
First bearing 970 and the are also provided with durable, described braking control device 900 in order to which structure is more firm
Two bearings 980,970 housing of first bearing are located at the upper end of displacement drive mechanism 940 on master cylinder piston 920,
980 housing of second bearing is located at the lower end of displacement drive mechanism 940 on master cylinder piston 920.
Those skilled in the art can be obvious, can the above exemplary embodiments of the utility model be carry out various modifications and be become
Spirit and scope of the type without departing from the utility model.Accordingly, it is intended to which the utility model covering is made to fall in the appended claims
And its modifications and variations to the utility model within the scope of equivalent arrangements.
Claims (10)
1. motor vehicle braking system, which is characterized in that
Including pressure pump, first pressure pipe, second pressure pipe, brake pressure pipe, wheel braking device, master cylinder, entering pressure hole,
Hole and braking control device are pressed out,
Wherein, pressure pump by first pressure pipe, second pressure pipe respectively with entering pressure hole, go out pressure hole be connected to, wherein entering pressure hole, out
Hole is pressed to be arranged on master cylinder,
Pressure pump, second pressure pipe, entering pressure hole, goes out the pressure circuit that pressure hole forms closed loop with master cylinder at first pressure pipe,
Braking control device is connect with master cylinder,
One end of brake pressure pipe connects wheel braking device, other end connection connection pressure circuit.
2. motor vehicle braking system according to claim 1, characterized in that
The braking control device includes brake pedal, master cylinder piston, return spring, displacement drive mechanism, electrical control mechanism, cuts
Door,
Wherein, the lower end of master cylinder piston is connect with return spring, when master cylinder piston stress is subjected to displacement, after stress is eliminated, by returning
The effect of position spring, master cylinder piston can return to situ,
It is also connect simultaneously with displacement drive mechanism outside the upper end of master cylinder piston, displacement drive mechanism is controlled by electrical control mechanism, behaviour
Make master cylinder piston to be subjected to displacement up and down,
The lower end of master cylinder piston is connected with pipe valve, and when master cylinder piston downlink, pipe valve is with downlink, and occluding pressure circuit, system
The pressure increase of dynamic master cylinder, acts on wheel braking device.
3. motor vehicle braking system according to claim 2, characterized in that
The displacement drive mechanism includes first gear, second gear and third gear,
Wherein, first gear is spur gear, is nested in outside the output shaft of electrical control mechanism,
Third gear is helical gear, is nested in the outside of master cylinder piston,
Second gear is inside and outside bidentate wheel construction, and wherein external tooth is engaged with first gear, and internal tooth is engaged with third gear,
The longitudinal width of third gear is greater than the longitudinal width of second gear, to guarantee the length travel model of third gear
It encloses.
4. motor vehicle braking system according to claim 2, characterized in that
The displacement drive mechanism includes the 4th gear and corresponding rack gear arrangement,
Wherein the 4th gear is nested in the outside of the output shaft of electrical control mechanism,
Rack gear arrangement is nested in the outside of master cylinder piston, external to engage with the 4th gear.
5. motor vehicle braking system according to claim 2, characterized in that
The braking control device further includes displacement sensor, and displacement sensor is located in master cylinder wall and master cylinder piston pair
It answers, the displacement occurrence quantity of master cylinder piston and master cylinder is monitored.
6. motor vehicle braking system according to claim 2, characterized in that
The brake pressure pipe is connect with the first pressure pipe in pressure circuit.
7. motor vehicle braking system according to claim 2, characterized in that
The master cylinder further includes brake pressure delivery outlet, and brake pressure pipe is connect with brake pressure delivery outlet.
8. according to any one motor vehicle braking system described in claim 2-7, characterized in that
The pressure pump is hydraulic oil pump.
9. according to any one motor vehicle braking system described in claim 2-7, characterized in that
The pressure pump is vacuum air pump.
10. according to any one motor vehicle braking system described in claim 2-7, characterized in that
The braking control device further includes first bearing and second bearing, and first bearing housing is on master cylinder piston, and position
In the upper end of displacement drive mechanism,
Second bearing housing is located at the lower end of displacement drive mechanism on master cylinder piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920369501.5U CN209600475U (en) | 2019-03-22 | 2019-03-22 | Motor vehicle braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920369501.5U CN209600475U (en) | 2019-03-22 | 2019-03-22 | Motor vehicle braking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209600475U true CN209600475U (en) | 2019-11-08 |
Family
ID=68405191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920369501.5U Active CN209600475U (en) | 2019-03-22 | 2019-03-22 | Motor vehicle braking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209600475U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113147705A (en) * | 2021-06-04 | 2021-07-23 | 吉林大学 | Brake system for unmanned vehicle |
| CN113183756A (en) * | 2021-05-13 | 2021-07-30 | 陕西科技大学 | Motor vehicle misoperation prevention device based on artificial intelligence and method thereof |
-
2019
- 2019-03-22 CN CN201920369501.5U patent/CN209600475U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113183756A (en) * | 2021-05-13 | 2021-07-30 | 陕西科技大学 | Motor vehicle misoperation prevention device based on artificial intelligence and method thereof |
| CN113147705A (en) * | 2021-06-04 | 2021-07-23 | 吉林大学 | Brake system for unmanned vehicle |
| CN113147705B (en) * | 2021-06-04 | 2022-05-27 | 吉林大学 | Brake system for unmanned vehicle |
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| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: Room 1110-b, 11 / F, building 5, 2266 Taiyang Road, high speed rail new town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: Qingzhi automobile technology (Suzhou) Co.,Ltd. Address before: No.15, Hongcheng Road, Huaming high tech Zone, Dongli District, Tianjin Patentee before: TIANJIN TSINTEL TECHNOLOGY Co.,Ltd. |