CN207889695U - Vacuum brake boosting system and automobile - Google Patents
Vacuum brake boosting system and automobile Download PDFInfo
- Publication number
- CN207889695U CN207889695U CN201820273841.3U CN201820273841U CN207889695U CN 207889695 U CN207889695 U CN 207889695U CN 201820273841 U CN201820273841 U CN 201820273841U CN 207889695 U CN207889695 U CN 207889695U
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- vacuum
- atmospheric pressure
- pressure sensor
- gps module
- booster
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- 238000004891 communication Methods 0.000 claims abstract description 11
- 238000004364 calculation method Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 5
- 238000013500 data storage Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model provides a vacuum brake helping hand system and car, this vacuum brake helping hand system includes: a vacuum booster; a vacuum pump in communication with the vacuum booster; a vacuum pressure sensor in communication with a vacuum circuit between the vacuum booster and the vacuum pump; the GPS module is used for measuring the altitude of the current position; the atmospheric pressure computing element is connected with the GPS module; and a vacuum degree calculating element connected to the vacuum pressure sensor and the atmospheric pressure calculating element; the embodiment of the utility model provides a through set up the GPS module in vacuum braking helping hand system, measure the current altitude of vehicle through the GPS module, atmospheric pressure computational element can calculate the atmospheric pressure value according to the altitude, the embodiment of the utility model provides an atmospheric pressure sensor can obtain the atmospheric pressure value not adopted, has avoided the shortcoming that atmospheric pressure sensor easily receives earth, dust influence.
Description
Technical Field
The utility model belongs to the technical field of the car technique and specifically relates to indicate a vacuum brake helping hand system and car.
Background
In the braking assistance control system, the controller needs to perform driving control of the vacuum pump according to a relative pressure value in the vacuum tank, wherein the relative pressure value is calculated by a vacuum pressure value and an atmospheric pressure value. Wherein the vacuum pressure value is measured by a vacuum pressure sensor installed in the vacuum circuit. The atmospheric pressure sensor is exposed in the air, and after the atmospheric pressure sensor is used for a period of time, soil and dust in the air can cause the blockage of a sensor testing hole, and finally the fault occurs.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a vacuum braking helping hand system and car to solve among the prior art problem that atmospheric pressure sensor's life is short and easily breaks down.
In order to achieve the above object, the utility model provides a vacuum brake helping hand system, include:
a vacuum booster;
a vacuum pump in communication with the vacuum booster;
a vacuum pressure sensor in communication with a vacuum circuit between the vacuum booster and the vacuum pump, the vacuum pressure sensor for measuring a vacuum circuit pressure value of the vacuum circuit;
the GPS module is used for measuring the altitude of the current position;
the atmospheric pressure calculating element is connected with the GPS module and is used for determining the atmospheric pressure value of the current position according to the altitude measured by the GPS module; and the number of the first and second groups,
and the vacuum degree calculating element is connected with the vacuum pressure sensor and the atmospheric pressure calculating element and is used for determining the relative vacuum degree of the vacuum loop according to the pressure value of the vacuum loop measured by the vacuum pressure sensor and the atmospheric pressure value determined by the atmospheric pressure calculating element.
Wherein, vacuum brake helping hand system still includes:
and the control element is respectively connected with the vacuum degree calculating element and the vacuum pump and is used for carrying out drive control on the vacuum pump according to the relative vacuum degree of the vacuum loop determined by the vacuum degree calculating element.
Wherein the atmospheric pressure calculating element, the vacuum degree calculating element, and the control element are integrated.
Wherein, vacuum brake helping hand system still includes:
the input end of the one-way valve is connected with the vacuum booster, and the output end of the one-way valve is connected with the vacuum pump;
wherein the vacuum pressure sensor is in communication with a vacuum circuit between the vacuum pump and the one-way valve.
Wherein, vacuum brake helping hand system still includes:
a vacuum tank in communication with the vacuum circuit between the one-way valve and the vacuum booster.
Wherein, vacuum brake helping hand system still includes:
a first three-way pipe; wherein,
the first opening of the first three-way pipe is connected with the vacuum pump, the second opening of the first three-way pipe is connected with the vacuum pressure sensor, and the third opening of the first three-way pipe is connected with the output end of the one-way valve.
Wherein, vacuum brake helping hand system still includes:
a second three-way pipe; wherein,
the first opening of the second three-way pipe is connected with the vacuum tank, the second opening of the second three-way pipe is connected with the input end of the one-way valve, and the third opening of the second three-way pipe is connected with the vacuum booster.
The embodiment of the utility model provides a still provide an automobile, include as above vacuum brake helping hand system.
The above technical scheme of the utility model following beneficial effect has at least:
the vacuum brake power-assisted system and the automobile provided by the embodiment of the utility model have the advantages that the GPS module is arranged in the vacuum brake power-assisted system, the current altitude of the vehicle is measured through the GPS module, and the atmospheric pressure calculating element can calculate the atmospheric pressure value according to the altitude; the GPS module can be shared with the vehicle-mounted data storage and uploading terminal, so that the system cost is low; further, the vacuum degree calculating element may determine the relative vacuum degree of the vacuum circuit based on the atmospheric pressure value calculated by the atmospheric pressure calculating element and the vacuum circuit pressure value measured by the vacuum pressure sensor, and the control element may perform the drive control of the vacuum pump based on the relative vacuum degree of the vacuum circuit.
Drawings
Fig. 1 is a schematic structural diagram of a vacuum brake boosting system according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, an embodiment of the present invention provides a vacuum brake boosting system, including:
a vacuum booster 1;
a vacuum pump 2 communicating with the vacuum booster 1;
a vacuum pressure sensor 3 communicated with a vacuum circuit between the vacuum booster 1 and the vacuum pump 2, wherein the vacuum pressure sensor 3 is used for measuring a vacuum circuit pressure value of the vacuum circuit;
a global positioning system GPS module 4 for measuring the altitude of the current position;
the atmospheric pressure calculating element 5 is connected with the GPS module 4, and the atmospheric pressure calculating element 5 is used for determining the atmospheric pressure value of the current position according to the altitude measured by the GPS module 4; and the number of the first and second groups,
and the vacuum degree calculating element 6 is connected with the vacuum pressure sensor 3 and the atmospheric pressure calculating element 5, and the vacuum degree calculating element 6 is used for determining the relative vacuum degree of the vacuum loop according to the pressure value of the vacuum loop measured by the vacuum pressure sensor 3 and the atmospheric pressure value determined by the atmospheric pressure calculating element 5.
The above embodiment of the utility model, for the atmospheric pressure value of acquireing vehicle current position department, earlier through GPS module 4 measurement vehicle height above sea level that locates, and GPS module 4 sends the height above sea level that records for atmospheric pressure computational element 5, atmospheric pressure computational element 5 inquiry "height above sea level and atmospheric pressure corresponding table" obtain the atmospheric pressure value of current position department. Further, the atmospheric pressure calculating element 5 sends the calculated or inquired atmospheric pressure value to the vacuum degree calculating element 6; the vacuum degree calculating element 6 calculates the relative vacuum degree of the vacuum circuit based on the vacuum circuit pressure value sent from the vacuum pressure sensor 3 and the atmospheric pressure value sent from the atmospheric pressure calculating element 5. Preferably, the relative vacuum degree of the vacuum circuit is equal to the pressure value of the vacuum circuit/the atmospheric pressure value. The embodiment of the utility model provides an adopt no atmospheric pressure sensor can obtain atmospheric pressure value, avoided atmospheric pressure sensor easily to receive the shortcoming that earth, dust influence.
Further, in the above embodiments of the present invention, the vacuum brake boosting system further includes:
and the control element 7 is respectively connected with the vacuum degree calculating element 6 and the vacuum pump 2, and the control element 7 is used for performing drive control on the vacuum pump 2 according to the relative vacuum degree of the vacuum loop determined by the vacuum degree calculating element 6.
In the above embodiment of the present invention, when the relative vacuum degree of the vacuum circuit calculated by the vacuum degree calculating element 6 is lower than the vacuum pump opening threshold, the control element 7 drives the vacuum pump to work to perform vacuum pumping of the vacuum circuit; when the relative degree of vacuum of the vacuum circuit calculated by the vacuum degree calculating element 6 is higher than or equal to the vacuum pump shut-off threshold, the control element 7 stops driving the vacuum pump.
Preferably, as shown in fig. 1, the atmospheric pressure calculating element 5, the vacuum degree calculating element 6 and the control element 7 are integrated into a whole, which may be integrated into a controller of the vacuum brake boosting system, or a single chip of the vacuum brake boosting system, or other components, and are not limited herein; the integration mode can reduce the quantity of components and parts and reduce the volume of the vacuum brake boosting system.
Further, as shown in fig. 1, in an embodiment of the present invention, the vacuum brake boosting system further includes:
the input end of the check valve 8 is connected with the vacuum booster 1, and the output end of the check valve 8 is connected with the vacuum pump 2;
wherein the vacuum pressure sensor 3 is in communication with a vacuum circuit between the vacuum pump 2 and the one-way valve 8. The design of the non-return valve 8 is to ensure irreversibility of the vacuum circuit.
As shown in fig. 1, in the above embodiments of the present invention, the vacuum brake boosting system further includes:
a vacuum tank 9, said vacuum tank 9 communicating with the vacuum circuit between said non-return valve 8 and said vacuum booster 1.
Preferably, in the above embodiment of the present invention, the vacuum brake boosting system further includes:
a first tee 10; wherein,
a first opening of the first three-way pipe 10 is connected with the vacuum pump 2, a second opening of the first three-way pipe 10 is connected with the vacuum pressure sensor 3, and a third opening of the first three-way pipe 10 is connected with an output end of the one-way valve 8.
Preferably, the vacuum brake assist system further includes:
a second three-way pipe 11; wherein,
a first opening of a second three-way pipe 11 is connected with the vacuum tank 9, a second opening of the second three-way pipe 11 is connected with an input end of the one-way valve 8, and a third opening of the second three-way pipe 11 is connected with the vacuum booster 1.
To sum up, the utility model discloses an above-mentioned embodiment provides contains the GPS module among the vacuum brake helping hand system, and this GPS module is used for measuring vehicle current position's altitude, and then obtains the atmospheric pressure value of vehicle current position department according to altitude and atmospheric pressure's corresponding relation by atmospheric pressure computational element. And the vacuum degree calculation element calculates the vacuum degree according to the obtained atmospheric pressure value and the vacuum loop pressure value measured by the vacuum pressure sensor, and the control element controls the vacuum pump to carry out vacuum pumping operation when the relative vacuum degree is lower than a threshold value according to the calculated relative vacuum degree. The embodiment of the utility model can obtain the atmospheric pressure value without adopting an atmospheric pressure sensor, thereby avoiding the defect that the atmospheric pressure sensor is easily influenced by soil and dust; and the GPS module can be shared with the vehicle-mounted data storage and uploading terminal, so that the system cost is low.
In order to better achieve the above object, the embodiment of the present invention further provides an automobile, including the vacuum brake boosting system as described above.
The vacuum brake power assisting system of the automobile comprises a GPS module, wherein the GPS module is used for measuring the altitude of the current position of the automobile, and then an atmospheric pressure value at the current position of the automobile is obtained by an atmospheric pressure calculating element according to the corresponding relation between the altitude and the atmospheric pressure. And the vacuum degree calculation element calculates the vacuum degree according to the obtained atmospheric pressure value and the vacuum loop pressure value measured by the vacuum pressure sensor, and the control element controls the vacuum pump to carry out vacuum pumping operation when the relative vacuum degree is lower than a threshold value according to the calculated relative vacuum degree. The embodiment of the utility model can obtain the atmospheric pressure value without adopting an atmospheric pressure sensor, thereby avoiding the defect that the atmospheric pressure sensor is easily influenced by soil and dust; and the GPS module can be shared with the vehicle-mounted data storage and uploading terminal, so that the system cost is low.
It should be noted that the present invention provides an automobile including the vacuum brake boosting system, and all embodiments of the vacuum brake boosting system are applicable to the automobile and all can achieve the same or similar beneficial effects.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A vacuum brake assist system, comprising:
a vacuum booster;
a vacuum pump in communication with the vacuum booster;
a vacuum pressure sensor in communication with a vacuum circuit between the vacuum booster and the vacuum pump, the vacuum pressure sensor for measuring a vacuum circuit pressure value of the vacuum circuit;
the GPS module is used for measuring the altitude of the current position;
the atmospheric pressure calculating element is connected with the GPS module and is used for determining the atmospheric pressure value of the current position according to the altitude measured by the GPS module; and the number of the first and second groups,
and the vacuum degree calculating element is connected with the vacuum pressure sensor and the atmospheric pressure calculating element and is used for determining the relative vacuum degree of the vacuum loop according to the pressure value of the vacuum loop measured by the vacuum pressure sensor and the atmospheric pressure value determined by the atmospheric pressure calculating element.
2. The vacuum brake assist system of claim 1, further comprising:
and the control element is respectively connected with the vacuum degree calculating element and the vacuum pump and is used for carrying out drive control on the vacuum pump according to the relative vacuum degree of the vacuum loop determined by the vacuum degree calculating element.
3. The vacuum brake assist system of claim 2, wherein the atmospheric pressure calculation element, the vacuum degree calculation element, and the control element are integrated.
4. The vacuum brake assist system of claim 1, further comprising:
the input end of the one-way valve is connected with the vacuum booster, and the output end of the one-way valve is connected with the vacuum pump;
wherein the vacuum pressure sensor is in communication with a vacuum circuit between the vacuum pump and the one-way valve.
5. The vacuum brake assist system of claim 4, further comprising:
a vacuum tank in communication with the vacuum circuit between the one-way valve and the vacuum booster.
6. The vacuum brake assist system of claim 4, further comprising:
a first three-way pipe; wherein,
the first opening of the first three-way pipe is connected with the vacuum pump, the second opening of the first three-way pipe is connected with the vacuum pressure sensor, and the third opening of the first three-way pipe is connected with the output end of the one-way valve.
7. The vacuum brake assist system of claim 5, further comprising:
a second three-way pipe; wherein,
the first opening of the second three-way pipe is connected with the vacuum tank, the second opening of the second three-way pipe is connected with the input end of the one-way valve, and the third opening of the second three-way pipe is connected with the vacuum booster.
8. An automobile, characterized by comprising a vacuum brake boosting system according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820273841.3U CN207889695U (en) | 2018-02-27 | 2018-02-27 | Vacuum brake boosting system and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820273841.3U CN207889695U (en) | 2018-02-27 | 2018-02-27 | Vacuum brake boosting system and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207889695U true CN207889695U (en) | 2018-09-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820273841.3U Expired - Fee Related CN207889695U (en) | 2018-02-27 | 2018-02-27 | Vacuum brake boosting system and automobile |
Country Status (1)
| Country | Link |
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| CN (1) | CN207889695U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435625A (en) * | 2019-07-24 | 2019-11-12 | 中国第一汽车股份有限公司 | A kind of electric car vacuum boost system vacuum sensor detection system and method |
| CN110920596A (en) * | 2019-12-09 | 2020-03-27 | 北京汽车集团越野车有限公司 | Vacuum pump determination method, brake system and vehicle |
| CN113341863A (en) * | 2021-06-04 | 2021-09-03 | 广东鑫钻节能科技股份有限公司 | Efficient energy-saving vacuum system |
| CN113635883A (en) * | 2021-08-30 | 2021-11-12 | 中国第一汽车股份有限公司 | Environment pressure detection system and method for vacuum boosting system of electric automobile |
-
2018
- 2018-02-27 CN CN201820273841.3U patent/CN207889695U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110435625A (en) * | 2019-07-24 | 2019-11-12 | 中国第一汽车股份有限公司 | A kind of electric car vacuum boost system vacuum sensor detection system and method |
| CN110920596A (en) * | 2019-12-09 | 2020-03-27 | 北京汽车集团越野车有限公司 | Vacuum pump determination method, brake system and vehicle |
| CN113341863A (en) * | 2021-06-04 | 2021-09-03 | 广东鑫钻节能科技股份有限公司 | Efficient energy-saving vacuum system |
| CN113635883A (en) * | 2021-08-30 | 2021-11-12 | 中国第一汽车股份有限公司 | Environment pressure detection system and method for vacuum boosting system of electric automobile |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180921 |
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| CF01 | Termination of patent right due to non-payment of annual fee |