CN1846119A - Measuring device for determining the characteristics and the level of a brake fluid in a motor vehicle - Google Patents
Measuring device for determining the characteristics and the level of a brake fluid in a motor vehicle Download PDFInfo
- Publication number
- CN1846119A CN1846119A CN 200480025319 CN200480025319A CN1846119A CN 1846119 A CN1846119 A CN 1846119A CN 200480025319 CN200480025319 CN 200480025319 CN 200480025319 A CN200480025319 A CN 200480025319A CN 1846119 A CN1846119 A CN 1846119A
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- China
- Prior art keywords
- measurement mechanism
- reserve tank
- liquid reserve
- fluid
- plug connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 30
- 238000005259 measurement Methods 0.000 claims description 61
- 230000007246 mechanism Effects 0.000 claims description 50
- 239000007788 liquid Substances 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 17
- 238000005273 aeration Methods 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 241000237983 Trochidae Species 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 238000009835 boiling Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 229920000544 Gore-Tex Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The invention relates to a measuring device (1) for determining a characteristic or the characteristics of a fluid and/or the level of said fluid in a container (8) that holds said fluid. The device is located in particular in the brake-fluid container of a motor-vehicle brake system, preferably an electronically controlled system. Said device comprises an integrated electronic measuring system (2), a sensor unit (4), an electric supply line (18, 26) and a detachable or fixed electric connection line (9).
Description
Technical field
The present invention relates to a kind of measurement mechanism of the preamble according to claim 1.
Background technology
At the various method and apparatus that are used for the water capacity of definite brake fluid known in the art.In some method, determine quality, the especially water cut of this brake fluid by the boiling point of for example determining the moisture absorption brake fluid.
Known to from EP 0 513 004, use boiling temperature to determine that the device of quality designs like this, promptly make sensor element be set at least one linear conductor, for example electric wire.From the document, can not obtain the device characteristic of the setting of relevant brake fluid liquid reserve tank.
The device that illustrates in EP 0 289 499 B1 relates to a kind of brake fluid tester, wherein produces the bubble boiling section in measuring chamber.Related device is not suitable for and is installed in the motor vehicle, because this device is designed to instrument (appliance).
Quite schematically the device of explanation has sensor element and heating element in cylindricality measurement chamber in DE 101 47 804 A1.The document does not openly make sensor be adapted at the specific embodiment that uses in the brake fluid liquid reserve tank.
How DE 197 41 892 C2 determine the quality of brake fluid except disclosing, also disclose the packed height of how measuring the brake fluid liquid reserve tank from principle.DE 197 41 892 C2 have mainly illustrated measuring method.Openly be not used to implement the measurement mechanism of this method.
Therefore, can say so, up to the present also not have in the prior art openly in motor vehicle, to use reliably and the feature of the concrete structure of the measurement mechanism that can make with low cost.
Summary of the invention
As indicated above, the objective of the invention is to disclose a kind of device that is used to implement measuring method known on the principle, this device can low-cost production also can satisfy present and demand in the future in the vehicle manufacturing.
According to the present invention, this purpose can realize by the measurement mechanism described in the claim 1.
Measurement mechanism of the present invention is characterised in that electronic measurement system is integrated in the measurement mechanism.This set does not need measurement mechanism is connected to the electric connection line electric shield of electronic control unit with transmission of sensor signals.In addition, aspect the reliability of sensor and the manufacturing cost very big advantage is being arranged also.
The favourable embodiment that measurement mechanism of the present invention is manufactured the form of inserting tube allows to realize different installation sites according to vehicular manufacturer's personal wishes.
Visible other preferred implementation from dependent claims and the description of the drawings.
Description of drawings
To describe the present invention in detail by example below.In the accompanying drawings:
Fig. 1 illustrates the example that is fixed on the measurement mechanism in the liquid storage case lid;
Fig. 2,3 illustrates the example of the optional installation site of measurement mechanism;
Fig. 4 illustrates another example according to measurement mechanism of the present invention;
Fig. 5 illustrates the example that is integrated in the measurement mechanism in the liquid storage case lid with the profiled member that is used to seal; And
Fig. 6 illustrates the example of the measurement mechanism with O-ring seal that can be screwed into liquid reserve tank.
Embodiment
Measurement mechanism 1 among Fig. 1 comprises integrated electronic measurement system 2.The electronic component of electronic measurement system 2 is arranged on the element bracket.Measurement mechanism 1 is characterised in that electronic measurement system 2 is integrated in the measurement mechanism 1.Measurement mechanism integrated obtained many advantages.For example, because possible signal amplifies the feasible electric shield sensor cable that do not need.In addition, measurement mechanism 1 does not comprise movable part.Plane printed conductor 26 realizations that the connection of printed circuit board (PCB) is made by using ram frame.But, also can use membrane material to improve elasticity with conductive coating.But the housing component of measurement mechanism is configured to tubular generally and comprises the opening 11 of local penetration in the sensor element zone, and fluid can pass this opening and enter housing component inside.This opening can utilize a for example filtrator 10 sealings.Therefore, immerse brake fluid 23 backs at sensor and form mitigation chamber 12, for sensor 13 provides suitable measurement space.But, under the simplest situation, can use the simple recess on the wall of measurement mechanism, as long as can guaranteeing liquid reserve tank and the fluid communication of measuring between the chamber, this recess reaches expected degree.Housing component can have one or more ventilating openings 14.Measurement mechanism is installed in rotation in the lid 7 of brake fluid liquid reserve tank 8, thereby can more easily connect the connecting line 9 that causes the ECU that for example leads to electric brake system of measurement mechanism from nacelle on the direction of hope.Measurement mechanism comprise the bottom shell spare that is used for sensor element and be used for electron device and with the top shell spare of this bottom shell spare sealing.Utilize separator 5 that the zone of electron device 3 and the zone of sensing system 4 are separated each other hermetically.Housing component is connected to each other with can in a known manner, preferably utilizing buckle 6 force closures.The connection that material is harmonious also is feasible.
In Fig. 2, measurement mechanism is connected on the wall of brake fluid liquid reserve tank.This is easy to accomplish, because measurement mechanism is designed to insert the form of tube.
In Fig. 3, level and vertically disposed two measurement mechanisms are shown, to represent different installation sites.The total length of the multi-part housing of the measurement mechanism that illustrates can be adapted to depend on the various liquid reserve tank shapes of type of vehicle, thereby guarantees that sensor immerses the enough degree of depth of brake fluid.Use the suitable seal part to make housing component relative to each other sealing by this way, promptly make housing component formula inserted into each other to move.Preferably housing component is manufactured cylindricly, the slightly larger in diameter of external shell spare 15 is in the diameter of inner shell spare 16, thereby inner shell spare 16 can slip into external shell spare 15 inside.The housing component that accommodates electron device is separated hermetically with the housing component that accommodates measuring sensor.Be provided with the seal channel that is used for electric wire at sealing area.The preferred glass 21 that uses seals.Perhaps, can electrical connector be set in this zone, for example plug, contact etc.
In Fig. 4, the electric wire that electronic measurement system is connected to the zone of the sensing system 4 in the bottom shell spare 17 is arranged to flexible wires 18; Compare with nonflexible line, the advantage of this flexible wires is, when the bottom shell spare 17 of hydrodynamic reciprocating sealing when changing length, line can not damage.Perhaps, this flexible wires can be simple insulated line.In addition, the fluid liquid reserve tank comprises one or more openings 19 that liquid reserve tank ventilates that are used at housing and/or closure member zone, and this opening preferably for example brings sealing by the ventilative weaving that GoreTex makes by weaving film 20-.Above-mentioned aeration structure can (one) be formed on the housing of measurement mechanism.Measurement mechanism 1 integral body can the supporting member in being arranged on lid in A translation longitudinally.In addition, comprise that the plug connector cap 24 of electron device can be around axis A rotating certain angle in lid, so that be connected at different directions on the plug connector 25 of the bending that links to each other with lead 9.
Fig. 5 illustrate the brake fluid mass sensor is integrated in the liquid storage case lid another may embodiment.According to Fig. 5, sensor is integrated in the serial connection liquid storage case lid of metric system hydrodynamic liquid reserve tank, and aeration structure is also arranged in lid.External shell (sensor stand) is a profiled member, and it holds all individual components of sensor, for example sensor head, electrode, electron device and be used to separate the seal of electron device and sensor element (hygrosensor and heating element).In the electron device zone, be inserted with the profiled member that holds electron device and have sealing property with respect to sensor electrical at the sensor top.The profiled member of the one of being made by elastic body is pressed against on the wall in electron device zone and the seal electronic element reliably of the sealing area between electron device and electrode.In the pressurized zone of lid, below the sensor supporting back-up ring 28 of annular, be provided with the ring washer 34 that is used to seal liquid reserve tank.Towards nacelle, with plug connector extension 27 sealing electron devices, the contact 29 of electron device is led in this extension guiding from sensor plug connector 30.
Fig. 6 a) illustrates the low level liquid reserve tank 33 that separates with mass sensor, and this liquid reserve tank is connected to the supply liquid reserve tank 32 that separates on the less space via an associated line 31.Be provided with on the liquid reserve tank 32 in supply and cover 7 ' in order to fill brake fluid.
At Fig. 6 b) in the mass sensor shown in the cut-open view sensor that is similar to Fig. 5 is shown, difference is, by the sealing between O-ring seal realization electron device and the sensor element, wherein for the sealing of sensor head be used for the sealing of the electrode of packed height, independent O-ring seal is set respectively with quality electrode.When the zone at lid does not provide as shown in Figure 5 aeration structure, can use the mass sensor in the liquid reserve tank structure of separating of Fig. 6 shown in a).
Claims (12)
1. a performance that is used for determining fluid and/or this fluid are at the measurement mechanism (1) of the packed height of holding its liquid reserve tank (8), described measurement mechanism especially is arranged in the brake fluid liquid reserve tank that is preferably electronically controlled motor vehicle braking systems, it is characterized in that having:
-be integrated in the electronic measurement system (2) in the described measurement mechanism,
-sensor device (4), described sensor device be connected to electronic measurement system with electrically conducting manner and be used for determining the feature of fluid and/or definite fluid in the packed height of the liquid reserve tank that holds it,
-supply lines (18,26) of electrical connection is provided between electronic measurement system and sensor device, and
-the dismountable or fixing electric connection line (9) of connection with transmission of sensor signals be provided between measurement mechanism and electronic control unit.
2. measurement mechanism according to claim 1, it is characterized in that, described measurement mechanism comprises the housing component that has the separable of two or more parts and especially be set to tubular, but at least one housing component is provided with the zone of fluid local penetration or is provided with the opening of having preset the flow resistance of determining at least.
3. measurement mechanism according to claim 1 and 2 is characterized in that, is used to the isolated area of protecting electron device not influenced by brake fluid in described measurement mechanism inner existence, thereby the zone that makes this device especially hold electron device is sealed hermetically.
4. measurement mechanism according to claim 3 is characterized in that, described isolated area is arranged on the separated zone of housing component.
5. at least one described measurement mechanism in requiring according to aforesaid right is characterized in that described supply lines is by forming with the electric wire or the planar conductor of sealing means by isolated area especially.
6. at least one described measurement mechanism in requiring according to aforesaid right is characterized in that described device is formed by a plurality of component-assembled, and can change length to adapt to different liquid reserve tank shapes that perhaps external shell is made of one piece by a kind of material at least.
7. at least one described measurement mechanism in requiring according to aforesaid right is characterized in that, described measurement mechanism is installed to the top shell spare (21) of liquid reserve tank or lid (7) is located or wall in or in the bottom.
8. measurement mechanism according to claim 7, it is characterized in that, described measurement mechanism (1) is fixed on the zone of liquid storage tank wall or liquid storage case lid, can move axially in the y direction upper edge of this measurement mechanism regulating length, and/or can rotate a minimum angles around the longitudinal axis with respect to liquid reserve tank or lid.
9. at least one described measurement mechanism in requiring according to aforesaid right, it is characterized in that, described device comprises the plug connector cap (24) that is used to connect plug connector (25), described plug connector (25) is used to connect electric connection line (9), particularly electronic measurement system is fixed in this plug connector cap, and described plug connector cap is removable and/or can rotate a minimum angles around the longitudinal axis with respect to liquid reserve tank or lid.
10. at least one described measurement mechanism in requiring according to aforesaid right, it is characterized in that, the sealing of electron device and sensor region is provided by profiled member, this profiled member internally with its most of form fit be pressed against on the housing wall in electron device zone, described profiled member is the elastic sealing element of one especially, perhaps seals by at least one elastic seal ring.
11. at least one described measurement mechanism according in the aforesaid right requirement is characterized in that, provides aeration structure at the sealing area that covers.
12. according at least one described measurement mechanism in the aforesaid right requirement, it is characterized in that, towards nacelle sealing electronics device area, described extension also comprises the connection plug connector (30) that is used for the sensor stube cable by plug connector extension (27).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10341263.8 | 2003-09-04 | ||
| DE10341263 | 2003-09-04 | ||
| DE102004035079.5 | 2004-07-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1846119A true CN1846119A (en) | 2006-10-11 |
Family
ID=37064643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200480025319 Pending CN1846119A (en) | 2003-09-04 | 2004-09-02 | Measuring device for determining the characteristics and the level of a brake fluid in a motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1846119A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219015A (en) * | 2010-04-14 | 2011-10-19 | 罗伯特·博世有限公司 | Hydraulic brake unit for vehicles including a fluid level sensor |
| CN101568457B (en) * | 2006-12-23 | 2012-12-12 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Compensating reservoir for a hydraulic motor vehicle brake system |
| CN101557973B (en) * | 2006-12-13 | 2013-05-22 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Equalizing container for a hydraulic motor vehicle brake system |
| CN107003172A (en) * | 2014-12-12 | 2017-08-01 | 恩德莱斯和豪瑟尔两合公司 | Probe unit |
-
2004
- 2004-09-02 CN CN 200480025319 patent/CN1846119A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101557973B (en) * | 2006-12-13 | 2013-05-22 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Equalizing container for a hydraulic motor vehicle brake system |
| CN101568457B (en) * | 2006-12-23 | 2012-12-12 | 大陆-特韦斯贸易合伙股份公司及两合公司 | Compensating reservoir for a hydraulic motor vehicle brake system |
| CN102219015A (en) * | 2010-04-14 | 2011-10-19 | 罗伯特·博世有限公司 | Hydraulic brake unit for vehicles including a fluid level sensor |
| CN102219015B (en) * | 2010-04-14 | 2015-04-29 | 罗伯特博世有限公司 | Hydraulic brake unit for vehicles including a fluid level sensor |
| CN107003172A (en) * | 2014-12-12 | 2017-08-01 | 恩德莱斯和豪瑟尔两合公司 | Probe unit |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |