CN205098183U - Parking brake system and vehicle - Google Patents
Parking brake system and vehicle Download PDFInfo
- Publication number
- CN205098183U CN205098183U CN201520840881.8U CN201520840881U CN205098183U CN 205098183 U CN205098183 U CN 205098183U CN 201520840881 U CN201520840881 U CN 201520840881U CN 205098183 U CN205098183 U CN 205098183U
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- Prior art keywords
- valve port
- valve
- brake system
- vehicle
- emergency brake
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- 230000001681 protective effect Effects 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 230000004044 response Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 44
- 230000009471 action Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model discloses a parking braking system and vehicle, the parking braking system includes; an oil inlet of the hydraulic pump is connected with an oil source; an oil inlet of the liquid filling valve is connected with an oil outlet of the hydraulic pump; the energy accumulator is connected with the oil outlet of the liquid charging valve; a brake for parking braking of a vehicle; and a first port of the control valve is connected with the oil cylinder of the brake, a second port of the control valve is connected with the energy accumulator, and the first port and the second port can be selectively communicated. The utility model discloses a parking braking system, the response speed of stopper is fast, and output braking torque is big, and it is reliable to operate steadily, and parking braking system's is small, and occupation space is few, starts and operates small in noise, low in production cost.
Description
Technical field
The utility model belongs to technical field of vehicle manufacture, in particular to a kind of emergency brake system and the vehicle with this emergency brake system.
Background technology
For full size vehicle, such as electronic bus etc., it requires that the output lock torque of emergency brake system is large, therefore existing full size vehicle adopts dual circuit gas to brake emergency brake system mostly, above-mentioned emergency brake system needs assembling brake cylinder and storage tank, make the volume of emergency brake system larger, take up room more, and need the cost of the electric air compressor be equipped with high for gas braking emergency brake system, start and running noises larger, have a strong impact on the traveling comfort of vehicle, there is room for improvement.
Utility model content
The utility model is intended to solve one of technical matters in correlation technique at least to a certain extent.For this reason, an object of the present utility model is the emergency brake system proposing a kind of compact conformation and stable performance.
Another object of the present utility model is to propose a kind of vehicle with above-mentioned emergency brake system.
According to the emergency brake system of the utility model first aspect, comprising: Hydraulic Pump, the oil inlet of described Hydraulic Pump is connected with oil sources; Prefill valve, the oil inlet of described prefill valve is connected with the oil outlet of described Hydraulic Pump; Accumulator, described accumulator is connected with the oil outlet of described prefill valve; Drg, described drg is used for the braking during standstill of vehicle; Control cock, the first valve port of described control cock is connected with the oil cylinder of described drg, and the second valve port of described control cock is connected with described accumulator, and described first valve port is optionally communicated with described second valve port.
According to the emergency brake system of the utility model first aspect, the fast response time of drg, exports lock torque large, operate steadily reliable, and the volume of emergency brake system is little, occupies little space, start and running noises little, productive costs is low.
In addition, above-mentioned according to the utility model emergency brake system can also have following additional technical characteristic:
Preferably, described control cock is change-over valve, and also comprises the 3rd valve port, and described 3rd valve port is connected with described oil sources, and described first valve port is communicated with in described 3rd valve port with described second valve port.
Alternatively, described control cock is solenoid directional control valve.
Preferably, described emergency brake system also comprises: pressure relay, and described pressure relay is connected to control described change-over valve with described second valve port and commutates.
Preferably, described emergency brake system also comprises: annunciator, and described annunciator is connected with described pressure relay.
Alternatively, described emergency brake system also comprises: safety valve, and described safety valve is connected between the oil outlet of described Hydraulic Pump and described oil sources.
Alternatively, described drg is diaphragm spring hydraulic brake.
According to the vehicle of the utility model second aspect, be provided with as first aspect any one as described in emergency brake system.
According to the vehicle of the utility model second aspect, performance of parking brake is reliable, start and running noises little, the NVH performance of vehicle is promoted, and productive costs is low, and the installing space that emergency brake system takies is little.
Preferably, the input end of the retarder of described drg and described vehicle is coaxially arranged.
Alternatively, described drg is by described reducer shell seam location.
Alternatively, described Hydraulic Pump is used for the steering swivel system fuel feeding to described vehicle.
Alternatively, described vehicle also comprises: switch, and described switch is connected with described control cock, and be optionally communicated with described second valve port to control described first valve port, and described switch is located at the operator's compartment of described vehicle, described switch is provided with protective cover.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the emergency brake system according to the utility model embodiment;
Fig. 2 is the installation site schematic diagram of the drg according to the utility model embodiment.
Reference numeral:
Emergency brake system 100,
Hydraulic Pump 1, prefill valve 2, accumulator 3, pressure relay 4, annunciator 5, control cock 6, the first valve port 61, second valve port the 62, three valve port 63, drg 7, switch 8, oil sources 9, safety valve 10,
Retarder 200, drive motor 300.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, orientation or the position relationship of the instruction such as term " axis ", " radial direction " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
First describe the emergency brake system 100 according to the utility model embodiment in detail with reference to Fig. 1, as shown in Figure 1, emergency brake system 100 comprises Hydraulic Pump 1, prefill valve 2, accumulator 3, drg 7 and control cock 6.
Wherein, the oil inlet of Hydraulic Pump 1 is connected with oil sources 9, and with to emergency brake system 100 fuel feeding, alternatively, Hydraulic Pump 1 can be electric hydraulic pump 1, and oil sources 9 can be petrol storage tank.The oil inlet of prefill valve 2 is connected with the oil outlet of Hydraulic Pump 1, the oil outlet of prefill valve 2 is connected with accumulator 3, with to accumulator 3 accumulation of energy, drg 7 is for the braking during standstill of vehicle, first valve port 61 of control cock 6 is connected with the oil cylinder of drg 7, second valve port 62 of control cock 6 is connected with accumulator 3, and the first valve port 61 is optionally communicated with the second valve port 62.
Be understandable that, prefill valve 2 is for controlling the force value of accumulator 3, and when the force value of accumulator 3 is lower than threshold pression value, Hydraulic Pump 1 can be filled with high pressure oil by prefill valve 2 towards accumulator 3, can drive drg 7 to make accumulator 3.When the force value of accumulator 3 reaches pressure upper limit value, prefill valve 2 stops filling high pressure oil towards accumulator 3, to prevent accumulator 3 overvoltage.That is, the force value of accumulator 3 can remain in certain scope, thus, can guarantee the steadily reliable of emergency brake system 100.
Control cock 6 is connected between the oil cylinder of accumulator 3 and drg 7, and when needs braking during standstill, by being communicated with the first valve port 61 and the second valve port 62, the high pressure oil in accumulator 3 can be made to flow into the oil cylinder of drg 7, and act on the piston of drg 7, fast driving drg 7 is braked, drg 7 can complete the action of one or many braking during standstill, until the force value of accumulator 3 is lower than threshold pression value, now prefill valve 2 can be filled with high pressure oil with accumulation of energy towards accumulator 3, is convenient to perform braking during standstill action next time.
According to the emergency brake system 100 of the utility model embodiment, by arranging said structure, the fast response time of drg 7, output lock torque is large, operate steadily reliable, and the volume of emergency brake system 100 is little, occupy little space, start and running noises little, productive costs is low.
Alternatively, the pressure upper limit value of accumulator 3 can between 5.5MPa-6.5MPa, and the threshold pression value of accumulator 3 can between 4MPa-5MPa.
Particularly, in a specific embodiment of the present utility model, the pressure upper limit value of accumulator 3 can be 6.03MPa, the threshold pression value of accumulator 3 can be 4.48MPa, that is, when the force value in accumulator 3 is lower than 4.48MPa, Hydraulic Pump 1 can be filled with high pressure oil by prefill valve 2 towards accumulator 3, when force value in accumulator 3 reaches 6.03MPa, prefill valve 2 can stop being filled with high pressure oil towards accumulator 3.
In preferred embodiments more of the present utility model, drg 7 can be diaphragm spring hydraulic brake 7.Thus, the volume of drg 7 is little, and braking is steadily reliable.
Alternatively, emergency brake system 100 can also comprise safety valve 10, and safety valve 10 can be connected between the oil outlet of Hydraulic Pump 1 and oil sources 9.
Be understandable that, when the output oil pressure of Hydraulic Pump 1 is excessive, safety valve 10 opens the oil outlet and the oil sources 9 that are communicated with Hydraulic Pump 1, can protect emergency brake system 100, particularly can prevent Hydraulic Pump 1 overvoltage.
In preferred embodiments more of the present utility model, as shown in Figure 1, control cock 6 can be change-over valve, and control cock 6 can also comprise the 3rd valve port 63,3rd valve port 63 is connected with oil sources 9, and the first valve port 61 is communicated with in the 3rd valve port 63 with the second valve port 62.
In other words, when needs perform braking during standstill action, the first valve port 61 is communicated with the second valve port 62, and the first valve port 61 and the 3rd valve port 63 disconnect, and accumulator 3 can be pressurizeed towards the oil cylinder of drg 7, drives drg 7 to brake; When not needing to perform braking during standstill action, the first valve port 61 is communicated with the 3rd valve port 63, and the first valve port 61 and the second valve port 62 disconnect, and the in-oil cylinder hydraulic oil of drg 7 can pass back into oil sources 9, with release the brake 7 by the 3rd valve port 63.
Alternatively, between the 3rd valve port 63 and oil sources 9, oil filter (not shown) can be provided with, in case the contaminating impurity oil sources 9 in non-return oil.
Particularly, as shown in Figure 1, control cock 6 can be solenoid directional control valve.Thus, the quick commutation realizing control cock 6 is convenient to.During solenoid directional control valve energising, the first valve port 61 is communicated with the second valve port 62, and the first valve port 61 and the 3rd valve port 63 disconnect; During solenoid directional control valve power-off, the first valve port 61 is communicated with the 3rd valve port 63, and the first valve port 61 and the second valve port 62 disconnect.As shown in Figure 1, solenoid directional control valve can be connected with power supply by switch 8, is optionally energized or power-off to control solenoid directional control valve.
As shown in Figure 1, emergency brake system 100 can also be provided with pressure relay 4, pressure relay 4 can be connected with the second valve port 62 and to commutate to control change-over valve (control cock 6).Thus, the effect of protection can be played to emergency brake system 100, and the work of emergency brake system 100 is more stable.
Further, as shown in Figure 1, emergency brake system 100 can also be provided with annunciator 5, annunciator 5 can be connected with pressure relay 4.
When the pressure of emergency brake system 100 is lower, annunciator 5 can give the alarm according to the signal of pressure relay 4, and prompting operator overhaul emergency brake system 100, to improve the safety of emergency brake system 100.Alternatively, annunciator 5 can be buzzer phone.
The working process of the emergency brake system 100 according to the utility model embodiment is described below:
As shown in Figure 1, start electric hydraulic pump 1, when the force value of accumulator 3 is lower than threshold pression value (such as 4.48MPa), Hydraulic Pump 1 can be filled with high pressure oil by prefill valve 2 towards accumulator 3, when the force value of accumulator 3 reaches pressure upper limit value (such as 6.03MPa), prefill valve 2 stops filling high pressure oil towards accumulator 3.
When needs perform braking during standstill action, solenoid directional control valve (control cock 6) is energized, solenoid directional control valve commutates, first valve port 61 is communicated with the second valve port 62, and the first valve port 61 and the 3rd valve port 63 disconnect, accumulator 3 is pressurizeed by the oil cylinder of solenoid directional control valve to drg 7, drives drg 7 to perform braking during standstill action.
When not needing to perform braking during standstill action, solenoid directional control valve power-off, solenoid directional control valve commutates again, first valve port 61 is communicated with the 3rd valve port 63, and the first valve port 61 and the second valve port 62 disconnect, the in-oil cylinder hydraulic oil of drg 7 can pass back into oil sources 9, with release the brake 7 by the 3rd valve port 63.
After the action of multiple exercise braking during standstill, force value in accumulator 3 constantly declines, until when the force value of accumulator 3 is lower than threshold pression value, Hydraulic Pump 1 can be filled with high pressure oil towards accumulator 3 again by prefill valve 2, until the force value of accumulator 3 reaches pressure upper limit value, like this, the force value of accumulator 3 can remain between threshold pression value and pressure upper limit value.
In sum, according to the emergency brake system 100 of the utility model embodiment, the fast response time of drg 7, exports lock torque large, operate steadily reliable, safety performance is good, and the volume of emergency brake system 100 is little, occupy little space, start and running noises little, productive costs is low.
Vehicle according to the utility model embodiment is described below.
As depicted in figs. 1 and 2, according to any one emergency brake system 100 that the vehicle set of the utility model embodiment has above-described embodiment to describe.
According to the vehicle of the utility model embodiment, performance of parking brake is reliable, start and running noises little, the NVH performance of vehicle is promoted, and productive costs is low, and the installing space that emergency brake system 100 takies is little.
In some preferred embodiments of the utility model embodiment, as shown in Figure 2, drg 7 can be coaxially arranged with the input end of the retarder 200 of vehicle, can be furnished with drg 7, retarder 200 and drive motor 300 successively in the axial direction.
Be understandable that, drg 7 is by the increasing torsion effect of retarder 200, and can amplify the lock torque of drg 7, the performance of parking brake of vehicle is more stable.
Particularly, be in the embodiment of diaphragm spring hydraulic brake 7 at drg 7, when the force value in accumulator 3 is 5MPa, by the increasing torsion effect of retarder 200, drg 7 can export the braking force of 1500N.
Further, drg 7 can by the seam location on the housing of retarder 200.Thus, the more compact structure of the emergency brake system 100 of vehicle, and the fixation of drg 7, can reduce taking of emergency brake system 100 pairs of spaces, particularly for the electronic bus that floor is lower, is conducive to the reasonable Arrangement of emergency brake system 100.
Preferably, Hydraulic Pump 1 may be used for the steering swivel system fuel feeding to vehicle.That is, the steering swivel system of vehicle and emergency brake system 100 can use same Hydraulic Pump 1, thus, can economize energy, reduce the parts of vehicle, reduce productive costs.
As shown in Figure 1, vehicle can be provided with switch 8, switch 8 can be connected with control cock 6, and be optionally communicated with the second valve port 62 to control the first valve port 61, and switch 8 can be located at the operator's compartment of vehicle, switch 8 is provided with protective cover.
Particularly, switch 8 can be automatically controlled button, and can be located on the instrument desk of the operator's compartment of vehicle, maloperation can be prevented by arranging protective cover, when needs perform braking during standstill action, only need open protective cover, press automatically controlled button and can control change-over valve commutation, complete braking during standstill action, park brake operation facilitates and safety.
Alternatively, can be electronic bus according to the vehicle of the utility model embodiment, according to the electronic bus of the utility model embodiment, the arrangement space of emergency brake system 100 is little, be conducive to car load low floor structural arrangement, and lock torque is large, performance of parking brake is reliable.
In the description of this specification sheets, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this specification sheets or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (12)
1. an emergency brake system, is characterized in that, comprises;
Hydraulic Pump, the oil inlet of described Hydraulic Pump is connected with oil sources;
Prefill valve, the oil inlet of described prefill valve is connected with the oil outlet of described Hydraulic Pump;
Accumulator, described accumulator is connected with the oil outlet of described prefill valve;
Drg, described drg is used for the braking during standstill of vehicle;
Control cock, the first valve port of described control cock is connected with the oil cylinder of described drg, and the second valve port of described control cock is connected with described accumulator, and described first valve port is optionally communicated with described second valve port.
2. emergency brake system according to claim 1, it is characterized in that, described control cock is change-over valve, and also comprises the 3rd valve port, described 3rd valve port is connected with described oil sources, and described first valve port is communicated with in described 3rd valve port with described second valve port.
3. emergency brake system according to claim 2, is characterized in that, described control cock is solenoid directional control valve.
4. emergency brake system according to claim 2, is characterized in that, also comprises: pressure relay, and described pressure relay is connected to control described change-over valve with described second valve port and commutates.
5. emergency brake system according to claim 4, is characterized in that, also comprises: annunciator, and described annunciator is connected with described pressure relay.
6. the emergency brake system according to any one of claim 1-5, is characterized in that, also comprises: safety valve, and described safety valve is connected between the oil outlet of described Hydraulic Pump and described oil sources.
7. the emergency brake system according to any one of claim 1-5, is characterized in that, described drg is diaphragm spring hydraulic brake.
8. a vehicle, is characterized in that, is provided with the emergency brake system according to any one of claim 1-7.
9. vehicle according to claim 8, is characterized in that, the input end of the retarder of described drg and described vehicle is coaxially arranged.
10. vehicle according to claim 9, is characterized in that, described drg is by described reducer shell seam location.
11. vehicles according to claim 8, is characterized in that, described Hydraulic Pump is used for the steering swivel system fuel feeding to described vehicle.
12. vehicles according to claim 8, is characterized in that, also comprise: switch, described switch is connected with described control cock, optionally be communicated with described second valve port to control described first valve port, and described switch is located at the operator's compartment of described vehicle, described switch is provided with protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520840881.8U CN205098183U (en) | 2015-10-27 | 2015-10-27 | Parking brake system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520840881.8U CN205098183U (en) | 2015-10-27 | 2015-10-27 | Parking brake system and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205098183U true CN205098183U (en) | 2016-03-23 |
Family
ID=55513986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520840881.8U Expired - Fee Related CN205098183U (en) | 2015-10-27 | 2015-10-27 | Parking brake system and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205098183U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196994A (en) * | 2015-10-27 | 2015-12-30 | 北京新能源汽车股份有限公司 | Parking brake system and vehicle |
| CN106828080A (en) * | 2017-01-24 | 2017-06-13 | 北京新能源汽车股份有限公司 | Automobile temperature control system, control method and control device thereof, and automobile |
-
2015
- 2015-10-27 CN CN201520840881.8U patent/CN205098183U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105196994A (en) * | 2015-10-27 | 2015-12-30 | 北京新能源汽车股份有限公司 | Parking brake system and vehicle |
| CN106828080A (en) * | 2017-01-24 | 2017-06-13 | 北京新能源汽车股份有限公司 | Automobile temperature control system, control method and control device thereof, and automobile |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160323 Termination date: 20211027 |
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| CF01 | Termination of patent right due to non-payment of annual fee |