CN202686353U - Vacuum degree detection device of vacuum boosting system and automobile - Google Patents
Vacuum degree detection device of vacuum boosting system and automobile Download PDFInfo
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- CN202686353U CN202686353U CN 201220251815 CN201220251815U CN202686353U CN 202686353 U CN202686353 U CN 202686353U CN 201220251815 CN201220251815 CN 201220251815 CN 201220251815 U CN201220251815 U CN 201220251815U CN 202686353 U CN202686353 U CN 202686353U
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Abstract
The utility model discloses a vacuum degree detection device of a vacuum boosting system. The vacuum boosting system comprises a vacuum booster (1), a vacuum pump (2) and a vacuum pipeline (3), wherein the vacuum pipeline (3) is connected between the vacuum booster (1) and the vacuum pump (2), and the vacuum degree detection device comprises a pressure sensor (4) which is connected with the vacuum pipeline (3). The utility model also discloses an automobile comprising the vacuum degree detection device. By the aid of the technical scheme, according to the vacuum degree detection device, the pressure sensor is arranged on the vacuum pipeline which connects the vacuum pump and the vacuum booster to detect the vacuum degree. Thus, the structure of the vacuum booster is not required to be changed, and the vacuum degree detection device is simple in structure, convenient to process and assemble and good in generality.
Description
Technical field
The utility model relates to the automobile detection field, particularly, relates to a kind of vacuum-ness detecting device and automobile of vacuum boost system.
Background technology
For vacuum boost system, its vacuum can obtain from the induction maniflod of driving engine usually.But the degree of vacuum that induction maniflod provides is often inadequate, has enough degree of vacuum in order to ensure vacuum booster, usually utilizes vacuum pump to provide vacuum (vacuum perhaps auxiliarily is provided) to vacuum booster.
When vehicle comprises the Motorized vacuum generation systems that utilizes vacuum pump, no matter electric vacuum pump is as secondary vacuum source or independent vacuum source, it is controlled all needing its mode of operation, namely can control the unlatching of electric vacuum pump and stops according to the needed degree of vacuum of braking.Therefore, just need to monitor to produce corresponding control to the degree of vacuum of vacuum booster.The detection of existing degree of vacuum to vacuum booster normally utilizes pressure sensor, and this pressure sensor is installed on the vacuum booster housing.This just needs to change the structure of vacuum booster, and perforate is with the setting pressure sensor on the housing of vacuum booster.But this vacuum-ness detecting device is higher to the requirement on machining accuracy of perforate, otherwise is easy to cause the problem such as the vacuum booster leak tightness is poor.In addition, this vacuum-ness detecting device also requires to change the structure of vacuum booster, has increased undoubtedly cost of development.
The utility model content
The purpose of this utility model provides a kind of vacuum-ness detecting device of vacuum boost system, and this vacuum-ness detecting device can pass through the more simply and easily degree of vacuum of structure detection vacuum booster.
To achieve these goals, the utility model provides a kind of vacuum-ness detecting device of vacuum boost system, this vacuum boost system comprise vacuum booster, vacuum pump and be connected to this vacuum booster and this vacuum pump between vacuum line, wherein, this vacuum-ness detecting device comprises the pressure sensor that is connected on the described vacuum line.
Preferably, also be provided with check valve on the described vacuum line, described pressure sensor is arranged between this check valve and the vacuum booster.
Preferably, described vacuum booster is communicated with the induction maniflod of driving engine by described vacuum line.
Preferably, described pressure sensor is electrically connected on read out instrument.
Preferably, described pressure sensor is electrically connected with electronic control unit, and described vacuum pump is electric vacuum pump, and this electronic control unit is electrically connected with described vacuum pump.
In addition, the utility model provides a kind of automobile, and this automobile comprises vacuum boost system, and wherein, described automobile also comprises according to vacuum-ness detecting device described in the utility model.
By technique scheme, vacuum-ness detecting device of the present utility model arranges pressure sensor to detect degree of vacuum at the vacuum line that connects vacuum pump and vacuum booster.So just need not to change the structure of vacuum booster, and this vacuum-ness detecting device is simple in structure, processes easy to assemblyly, and commonality is good.
Other feature and advantage of the present utility model will partly be described in detail in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and consists of the part of specification sheets, is used from explanation the utility model with the following specific embodiment one, but does not consist of restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the vacuum-ness detecting device according to the utility model preferred implementation.
Description of reference numerals
1 vacuum booster, 2 vacuum pumps
3 vacuum lines, 4 pressure sensors
5 check valves, 6 induction maniflods
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.Should be understood that, the specific embodiment described herein only is used for description and interpretation the utility model, is not limited to the utility model.
In the utility model, in the situation that do not do opposite explanation, the noun of locality of use typically refers to the direction in the practical application.Direction among Fig. 1 shown in the arrow is the direction of gas flow between vacuum booster 1 and the vacuum pump 2, namely the direction that vacuumizes of vacuum pump 2.
The utility model provides a kind of vacuum-ness detecting device of vacuum boost system, this vacuum boost system comprises vacuum booster 1, vacuum pump 2 and is connected to vacuum line 3 between this vacuum booster 1 and this vacuum pump 2, wherein, this vacuum-ness detecting device comprises the pressure sensor 4 that is connected on the described vacuum line 3.
Unlike the prior art, the pressure sensor 4 of vacuum-ness detecting device of the present utility model is connected on the vacuum line 3.So just avoided that perforate not only greatly reduces the complexity of operation with the setting pressure sensor on vacuum booster 1, and improved the reliability of vacuum booster 1 sealing.
In addition, the connection location of this pressure sensor 4 on vacuum line 3 can arrange arbitrarily as required, that is to say and to consider space or pipeline structure, have sufficient space or enough easily the place this pressure sensor 4 is set, with the detection of the degree of vacuum of carrying out vacuum boost system.
Need to prove, because according to the technical solution of the utility model, pressure sensor 4 only needs to be connected on the vacuum line 3 and gets final product, therefore not only convenient and reliable, and commonality is better, is convenient to a large amount of production and application, and can reequip existing vehicle.And for Bonding pressure sensor 4, this vacuum line 3 can arrange as required.Shape, size and the structure etc. that is to say vacuum line 3 can as required and distinguishingly design so that on vacuum line 3 Bonding pressure sensor 4.For the consideration to the leak tightness of vacuum boost system, can as much as possible pressure sensor 4 be arranged near vacuum boosters 1, to improve the accuracy of measuring.
By technique scheme, vacuum-ness detecting device of the present utility model arranges pressure sensor to detect degree of vacuum at the vacuum line that connects vacuum pump and vacuum booster.So just need not to change the structure of vacuum booster, and this vacuum-ness detecting device is simple in structure, processes easy to assemblyly, and commonality is good.
Preferably, also be provided with check valve 5 on the described vacuum line 3, described pressure sensor 4 is arranged between this check valve 5 and the vacuum booster 1.
In this preferred implementation, also be provided with check valve 5 on the vacuum line 3, this check valve 5 is between vacuum booster 1 and vacuum pump 2, and this pressure sensor 4 is arranged between this check valve 5 and the vacuum booster 1, so that this pressure sensor 4 is arranged on the position near vacuum booster 1.
This check valve 5 guarantees that the flow direction of gas can only be from vacuum booster 1 to vacuum pump 2, so when vacuum pump 2 quit work, gas can not flow backwards to affect the degree of vacuum of vacuum booster 1.The effect that is to say check valve 5 is to prevent that the degree of vacuum of vacuum booster 1 from unnecessary loss occuring.And pressure sensor 4 is arranged between check valve 5 and the vacuum booster 1, can be so that pressure sensor 4 the most closely reflects the degree of vacuum of vacuum booster 1 all the time.
Preferably, described vacuum booster 1 is communicated with the induction maniflod 6 of driving engine by described vacuum line 3.
Normally, the degree of vacuum of vacuum booster 1 source mainly contains two, i.e. the induction maniflod 6 of driving engine and vacuum pump 2, and according to different vehicles, the source of these two kinds of degree of vacuum of choice for use alone or in combination.When engine operation, produce negative pressure at induction maniflod 6 places, thereby provide degree of vacuum to vacuum booster 1.Certainly, also check valve can be set in vacuum line 3 and induction maniflod 6 junctions, with the degree of vacuum that when driving engine is not worked, prevents vacuum booster 1 unnecessary loss occur.
Preferably, described pressure sensor 4 is electrically connected on read out instrument.
In preferred implementation of the present utility model, selected pressure sensor 4 is electronic machine normally, therefore this pressure sensor 4 can be electrically connected with read out instrument, be sent on the read out instrument to show the degree of vacuum of convenient operation personnel or service personnel monitoring vacuum booster with the testing result with degree of vacuum.
Preferably, described pressure sensor 4 is electrically connected with electronic control unit, and described vacuum pump 2 is electric vacuum pump, and this electronic control unit is electrically connected with described vacuum pump 2.
A free-revving engine that utilizes vacuum-ness detecting device of the present utility model to detect the degree of vacuum of vacuum booster 1 is exactly to control the service condition of vacuum pump 2 according to this degree of vacuum.Therefore, in the utility model, preferably pressure sensor 4 is electrically connected with electronic control unit, and vacuum pump 2 is electric vacuum pump, like this, the degree of vacuum of 4 pairs of vacuum boosters 1 of pressure sensor detects, and send testing result to electronic control unit, electronic control unit is controlled the unlatching of electric vacuum pump according to the service condition of vehicle and is stopped, the low vacuum that for example detects at pressure sensor 4 starts vacuum pump 2 during in lower threshold, check valve conducting this moment, vacuum pump 2 is communicated with by vacuum line 3 with vacuum booster 1, and the degree of vacuum of vacuum booster 1 begins to rise, when pressure sensor 4 detects this degree of vacuum and rises to upper limit threshold, vacuum pump 2 quits work, and the degree of vacuum of vacuum booster 1 no longer rises, and the check valve cut-off, to prevent that degree of vacuum from unnecessary loss occuring, and degree of vacuum descends again when vacuum booster 1 work, again starts vacuum pump 2 when being lower than lower threshold, so circulation.
And by the technical solution of the utility model, vacuum pump 2 only starts when needed and carries out work, greatly reduces energy consumption, has guaranteed the life-span of electric vacuum pump, so that driving is safer.
In addition, the utility model also provides a kind of automobile, and this automobile comprises vacuum boost system, and wherein, described automobile also comprises according to vacuum-ness detecting device described in the utility model.
By technique scheme, vacuum-ness detecting device of the present utility model arranges pressure sensor to detect degree of vacuum at the vacuum line that connects vacuum pump and vacuum booster.So just need not to change the structure of vacuum booster, and this vacuum-ness detecting device is simple in structure, processes easy to assemblyly, and commonality is good.In automobile, can come better safety for automobile belt with vacuum-ness detecting device of the present utility model.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in the above-mentioned embodiment; in technical conceive scope of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
Need to prove in addition, each concrete technical characterictic described in the above-mentioned specific embodiment in reconcilable situation, can make up by any suitable mode, for fear of unnecessary repetition, the utility model is to the no longer separately explanation of various possible array modes.
In addition, also can carry out combination in any between the various embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (6)
1. the vacuum-ness detecting device of a vacuum boost system, this vacuum boost system comprise vacuum booster (1), vacuum pump (2) and be connected to this vacuum booster (1) and this vacuum pump (2) between vacuum line (3), it is characterized in that, this vacuum-ness detecting device comprises the pressure sensor (4) that is connected on the described vacuum line (3).
2. vacuum-ness detecting device according to claim 1 is characterized in that, also is provided with check valve (5) on the described vacuum line (3), and described pressure sensor (4) is arranged between this check valve (5) and the vacuum booster (1).
3. vacuum-ness detecting device according to claim 1 and 2 is characterized in that, described vacuum booster (1) is communicated with the induction maniflod (6) of driving engine by described vacuum line (3).
4. vacuum-ness detecting device according to claim 1 and 2 is characterized in that, described pressure sensor (4) is electrically connected on read out instrument.
5. vacuum-ness detecting device according to claim 1 and 2 is characterized in that, described pressure sensor (4) is electrically connected with electronic control unit, and described vacuum pump (2) is electric vacuum pump, and this electronic control unit is electrically connected with described vacuum pump (2).
6. automobile, this automobile comprises vacuum boost system, it is characterized in that, described automobile also comprises according to each described vacuum-ness detecting device among the claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220251815 CN202686353U (en) | 2012-05-30 | 2012-05-30 | Vacuum degree detection device of vacuum boosting system and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220251815 CN202686353U (en) | 2012-05-30 | 2012-05-30 | Vacuum degree detection device of vacuum boosting system and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202686353U true CN202686353U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220251815 Expired - Fee Related CN202686353U (en) | 2012-05-30 | 2012-05-30 | Vacuum degree detection device of vacuum boosting system and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202686353U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103318165A (en) * | 2013-06-27 | 2013-09-25 | 奇瑞汽车股份有限公司 | Vacuum assistance system detection method, vacuum assistance system detection system, electromobile and failure detection method |
| CN108407792A (en) * | 2018-03-28 | 2018-08-17 | 浙江大行科技有限公司 | Automobile brake rotary-vane vaccum pump detection device |
-
2012
- 2012-05-30 CN CN 201220251815 patent/CN202686353U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103318165A (en) * | 2013-06-27 | 2013-09-25 | 奇瑞汽车股份有限公司 | Vacuum assistance system detection method, vacuum assistance system detection system, electromobile and failure detection method |
| CN103318165B (en) * | 2013-06-27 | 2015-09-23 | 奇瑞新能源汽车技术有限公司 | Vacuum boost system method of inspection and system, electronlmobil and fault detection method |
| CN108407792A (en) * | 2018-03-28 | 2018-08-17 | 浙江大行科技有限公司 | Automobile brake rotary-vane vaccum pump detection device |
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Legal Events
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20170530 |