WO2005024414A2 - Messvorrichtung zur bestimmung der eigenschaften und des füllstands einer bremsflüssigkeit in einem kraftfahrzeug - Google Patents
Messvorrichtung zur bestimmung der eigenschaften und des füllstands einer bremsflüssigkeit in einem kraftfahrzeug Download PDFInfo
- Publication number
- WO2005024414A2 WO2005024414A2 PCT/EP2004/052003 EP2004052003W WO2005024414A2 WO 2005024414 A2 WO2005024414 A2 WO 2005024414A2 EP 2004052003 W EP2004052003 W EP 2004052003W WO 2005024414 A2 WO2005024414 A2 WO 2005024414A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- measuring device
- electronics
- container
- fluid
- measuring
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/225—Devices for monitoring or checking brake systems; Signal devices brake fluid level indicators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; viscous liquids; paints; inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
Definitions
- Measuring device for determining the properties of a fluid in a motor vehicle
- the invention relates to a measuring device according to the preamble of claim 1.
- the quality of the hygroscopic brake fluid, in particular the water content is determined, for example by determining the boiling point of the fluid.
- the device known from EP 0 513 004 for determining the quality via the boiling temperature is designed such that the sensor element in the form of at least one linear conductor, e.g. a wire is formed.
- Device features which relate to an arrangement in a brake fluid container are not apparent from this document.
- the device described in EP 0 289 499 B1 is a brake fluid test device in which a bubble boiling zone is formed in a measuring cell. Because of the design as a device 'is not suitable for installation in a vehicle, the device in question.
- the device described rather schematically in DE 101 47 804 AI comprises a sensor element and a heating element in a cylindrical measuring chamber.
- a special embodiment which would make the sensor useful in a brake fluid container is not disclosed.
- DE 197 41 892 C2 From DE 197 41 892 C2, the principle is additionally known, in addition to determining the quality of the brake fluid. ability to measure the level in a brake fluid reservoir.
- DE 197 41 892 C2 essentially describes a measuring method. A measuring device for carrying out the method is not specified.
- the aim of the invention is therefore to provide a device for carrying out the measuring methods known in principle, which can be produced inexpensively and which satisfies the existing and future requirements in automobile construction.
- a special feature of the measuring device according to the invention is that the measuring electronics are integrated in the measuring device. This makes it possible not to electrically shield the electrical connecting line with which the measuring device for transmitting sensor signals can be connected to an electronic control unit. Furthermore, there are important advantages with regard to the reliability and the manufacturing costs of the sensor.
- the measuring device according to the invention Due to the advantageous possibility of producing the measuring device according to the invention as a cartridge which can be inserted, different installation positions can be implemented according to the individual wishes of the motor vehicle manufacturers. Further preferred embodiments result from the subclaims and the following description of the figures.
- FIG. 1 shows an example of a measuring device which is fastened in the container lid
- Fig. 5 shows an example of a measuring device integrated in a container lid with a molded sealing part
- FIG. 6 shows an example of a measuring device with sealing rings that can be screwed into the container.
- measuring device 1 comprises integrated evaluation electronics 2.
- the electronic components of measuring electronics 2 are arranged on a component carrier.
- a special feature of the measuring device 1 is that the measuring electronics 2 are integrated in the measuring device 1.
- the integration of the measuring device offers a whole range of advantages. For example, electrical shielding of the sensor cable can be dispensed with because of the possible signal amplification.
- the measuring device 1 also contains no moving parts.
- the circuit board is connected by flat conductor tracks 26, which can be produced from a stamped frame. But it can also be a conductive coated film material, which has the advantage of greater elasticity.
- the housing part of the measuring device is designed overall as a cartridge and has a partially permeable opening 11 in the area of the sensor elements through which the fluid can penetrate into the interior of the housing part.
- This opening is closed, for example, by a filter 10.
- a calm space 12 is created which provides a suitable measuring volume for the sensor 13.
- the housing part can have one or more further ventilation openings 14.
- the measuring device is rotatably installed in the cover 7 of a brake fluid container 8, so that connecting lines 9, which lead from the outside to the measuring device from the engine compartment and lead, for example, to the ECU of an electronic braking system, can be more easily connected in the desired direction.
- the device has a lower housing part for the sensor element or elements and an upper housing part sealed from it for the electronics.
- the area of the electronics 3 and the area of the sensors 4 are hermetically separated from one another by means of a separating element 5.
- the housing parts can be non-positively connected to one another in a manner known per se, preferably by a catch 6. A material connection is also possible.
- the measuring device with the wall of the brake connected liquid container. This is easily possible due to the design of the measuring device as an insertable cartridge.
- the structural length of the multi-part housing of the measuring device shown can be adjusted depending on the shape of the container, depending on the type of vehicle, so that a sufficient immersion of the sensor in the brake fluid is ensured.
- the housing parts are sealed from one another by suitable seals in such a way that the housing parts can be displaced into one another.
- the housing parts are preferably cylindrical, the outer housing part 15 having a slightly larger diameter than the inner housing part 16 that can be inserted into the outer housing part 15.
- the housing part with the electronics is hermetically separated from the housing part with the measuring elements.
- a sealed bushing for the electrical lines is provided in the area of the hermetic seal.
- the seal can preferably be made through a glass 21. Alternatively, electrical connection elements such as plugs, contacts and the like can also be used in this area. be provided.
- the electrical lines that connect the measuring electronics to the area of the sensor system 4 in the lower housing part 17 are designed as flexible lines 18, which have the advantage over rigid conductors that, when the lower housing part 17 is displaced, it is hermetically sealed , to change the length they are not damaged.
- the flexible cables can alternatively also be simple insulated wires.
- the fluid container in the area of the housing and / or the Unlock one or more openings 19 for ventilation of the container which is preferably closed by a textile membrane 20, such as a breathable textile strip made of GoreTex®.
- the ventilation device described above can be molded onto the housing of the measuring device.
- the measuring device 1 as a whole can be displaced in the longitudinal direction A within the holder arranged in the cover.
- the plug cap 24 including the electronics can be rotated through a defined angular range in the cover around axis A, so that an angled plug 25, which is connected to line 9, can be connected in different directions.
- the outer housing is a molded part that accommodates all individual parts of the sensor, such as the sensor head, electrode, electronics and seal for separating electronics and sensor elements (temperature sensor and heating element).
- a molded part accommodating the electronics is inserted, which at the same time has sealing properties towards the sensor electrodes.
- the one-piece molded part made of an elastomer lies against the walls in the area of the electronics and securely seals the electronics part in the area of the hermetic separation of electronics and electrodes.
- an annular sealing disk 34 for sealing the container lies below an annular sensor support collar 28.
- the electronics are sealed off from the engine compartment by a plug extension 27 which guides the contacts 29 which lead from the sensor plug 30 to the Electronics.
- Fig. ⁇ a shows a separate, lower-lying container 33 with a quality sensor, which is connected via a connecting line 31 to a spatially separated smaller filling container 32.
- Lid 7 ' is arranged on the filling container 32 for filling with brake fluid.
- the quality sensor shown in cross-section in Fig. 6b) shows a sensor similar to Fig. 5 with the differences that the sealing between electronics and sensor elements is carried out by means of ring seals, whereby for each the seal to the sensor head with the quality electrode and the electrode for the fill level separate sealing ring is provided. If the ventilation shown in FIG. 5 is dispensed with in the area of the lid, there is the possibility of using the quality sensor in the separate container arrangement shown in FIG. 6a).
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/570,825 US20060283244A1 (en) | 2003-09-04 | 2004-09-02 | Measuring device for determining the characteristics and the level of a brake fluid in a motor vehicle |
EP04787088A EP1664690A2 (de) | 2003-09-04 | 2004-09-02 | Messvorrichtung zur bestimmung der eigenschaften und des füllstands einer bremsflüssigkeit in einem kraftfahrzeug |
DE112004001596T DE112004001596D2 (de) | 2003-09-04 | 2004-09-02 | Messvorrichtung zur Bestimmung der Eigenschaften eines Fluids in einem Kraftfahrzeug |
MXPA06002359A MXPA06002359A (es) | 2003-09-04 | 2004-09-02 | Dispositivo de medicion para determinar las cracteristicas de un fluido en un vehiculo de motor. |
JP2006525145A JP2007504453A (ja) | 2003-09-04 | 2004-09-02 | 車両において液体の特性を測定するための測定装置 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10341263 | 2003-09-04 | ||
DE10341263.8 | 2003-09-04 | ||
DE102004035079 | 2004-07-20 | ||
DE102004035079.5 | 2004-07-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005024414A2 true WO2005024414A2 (de) | 2005-03-17 |
WO2005024414A3 WO2005024414A3 (de) | 2005-05-12 |
Family
ID=34276546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/052003 WO2005024414A2 (de) | 2003-09-04 | 2004-09-02 | Messvorrichtung zur bestimmung der eigenschaften und des füllstands einer bremsflüssigkeit in einem kraftfahrzeug |
Country Status (7)
Country | Link |
---|---|
US (1) | US20060283244A1 (de) |
EP (1) | EP1664690A2 (de) |
JP (1) | JP2007504453A (de) |
KR (1) | KR20060095948A (de) |
DE (1) | DE112004001596D2 (de) |
MX (1) | MXPA06002359A (de) |
WO (1) | WO2005024414A2 (de) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008071708A2 (de) * | 2006-12-13 | 2008-06-19 | Continental Teves Ag & Co. Ohg | Ausgleichsbehälter für eine hydraulische kraftfahrzeugbremsanlage |
WO2008077771A1 (de) * | 2006-12-23 | 2008-07-03 | Continental Teves Ag & Co. Ohg | Ausgleichsbehälter für eine hydraulische kraftfahrzeugbremsanlage |
EP2377737A1 (de) * | 2010-04-14 | 2011-10-19 | Robert Bosch GmbH | Hydraulische Bremseinheit eines Kraftfahrzeugs, umfassend einen Füllstandsensor für die hydraulische Flüssigkeit |
DE102010042646A1 (de) * | 2010-10-20 | 2012-04-26 | Continental Teves Ag & Co. Ohg | Ausgleichsbehälter für eine hydraulische Kraftfahrzeugbremsanlage |
TWI717239B (zh) * | 2020-03-23 | 2021-01-21 | 川景企業有限公司 | 煞車油沸點檢測器改良構造 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE409865T1 (de) * | 2005-09-21 | 2008-10-15 | Hoffmann La Roche | Reagenzbehälteranordnung und analysator mit solchen anordnung |
US10345177B2 (en) * | 2017-04-27 | 2019-07-09 | Ford Global Technologies, Llc | Sensor cartridge for mounting in a reservoir |
FR3067808B1 (fr) * | 2017-06-20 | 2019-08-23 | Tristone Flowtech Solutions (Tfs) | Reservoir de liquide a capteur de niveau capacitif |
EP3587203B1 (de) * | 2018-06-29 | 2021-08-11 | Volvo Car Corporation | Verfahren und system zur schätzung des wassergehaltes von bremsflüssigkeit in einem bremssystem |
WO2022195486A1 (en) * | 2021-03-18 | 2022-09-22 | Smart Projects Llc | System, devices and methods for measuring a fill level in containers |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2558228A1 (de) * | 1975-12-23 | 1977-07-07 | Vdo Schindling | Einrichtung zum ueberwachen des fluessigkeitsstandes in behaeltern |
US4467646A (en) * | 1980-11-06 | 1984-08-28 | Vdo Adolf Schindling Ag | Device for the capacitive measurement of levels |
US4806847A (en) * | 1986-12-09 | 1989-02-21 | Caterpillar Inc. | Dielectric liquid level sensor and method |
EP0399824A2 (de) * | 1989-05-25 | 1990-11-28 | Fuji Jukogyo Kabushiki Kaisha | Elektrischer Flüssigkeitsstandsensor für Brennkraftmaschinen |
WO1995024646A1 (en) * | 1994-03-11 | 1995-09-14 | Nigel Alexander Buchanan | Fluid boiling-point sensing device |
US5907112A (en) * | 1995-08-24 | 1999-05-25 | Magnetrol International Inc. | Probe secondary seal |
-
2004
- 2004-09-02 US US10/570,825 patent/US20060283244A1/en not_active Abandoned
- 2004-09-02 DE DE112004001596T patent/DE112004001596D2/de not_active Withdrawn - After Issue
- 2004-09-02 WO PCT/EP2004/052003 patent/WO2005024414A2/de not_active Application Discontinuation
- 2004-09-02 KR KR1020067004580A patent/KR20060095948A/ko not_active Application Discontinuation
- 2004-09-02 JP JP2006525145A patent/JP2007504453A/ja active Pending
- 2004-09-02 EP EP04787088A patent/EP1664690A2/de not_active Withdrawn
- 2004-09-02 MX MXPA06002359A patent/MXPA06002359A/es not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2558228A1 (de) * | 1975-12-23 | 1977-07-07 | Vdo Schindling | Einrichtung zum ueberwachen des fluessigkeitsstandes in behaeltern |
US4467646A (en) * | 1980-11-06 | 1984-08-28 | Vdo Adolf Schindling Ag | Device for the capacitive measurement of levels |
US4806847A (en) * | 1986-12-09 | 1989-02-21 | Caterpillar Inc. | Dielectric liquid level sensor and method |
EP0399824A2 (de) * | 1989-05-25 | 1990-11-28 | Fuji Jukogyo Kabushiki Kaisha | Elektrischer Flüssigkeitsstandsensor für Brennkraftmaschinen |
WO1995024646A1 (en) * | 1994-03-11 | 1995-09-14 | Nigel Alexander Buchanan | Fluid boiling-point sensing device |
US5907112A (en) * | 1995-08-24 | 1999-05-25 | Magnetrol International Inc. | Probe secondary seal |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008071708A2 (de) * | 2006-12-13 | 2008-06-19 | Continental Teves Ag & Co. Ohg | Ausgleichsbehälter für eine hydraulische kraftfahrzeugbremsanlage |
WO2008071708A3 (de) * | 2006-12-13 | 2008-10-02 | Continental Teves Ag & Co Ohg | Ausgleichsbehälter für eine hydraulische kraftfahrzeugbremsanlage |
JP2010513108A (ja) * | 2006-12-13 | 2010-04-30 | コンチネンタル・テベス・アーゲー・ウント・コンパニー・オーハーゲー | 自動車液圧ブレーキシステム用調整タンク |
US8443664B2 (en) | 2006-12-13 | 2013-05-21 | Continental Teves Ag & Co. Ohg | Equalizing container for a hydraulic motor vehicle brake system |
WO2008077771A1 (de) * | 2006-12-23 | 2008-07-03 | Continental Teves Ag & Co. Ohg | Ausgleichsbehälter für eine hydraulische kraftfahrzeugbremsanlage |
US8739526B2 (en) | 2006-12-23 | 2014-06-03 | Continental Teves Ag & Co. Ohg | Compensating reservoir for a hydraulic motor vehicle brake system |
EP2377737A1 (de) * | 2010-04-14 | 2011-10-19 | Robert Bosch GmbH | Hydraulische Bremseinheit eines Kraftfahrzeugs, umfassend einen Füllstandsensor für die hydraulische Flüssigkeit |
FR2958903A1 (fr) * | 2010-04-14 | 2011-10-21 | Bosch Gmbh Robert | Ensemble hydraulique de freinage d'un vehicule comprenant un capteur de niveau de fluide hydraulique. |
DE102010042646A1 (de) * | 2010-10-20 | 2012-04-26 | Continental Teves Ag & Co. Ohg | Ausgleichsbehälter für eine hydraulische Kraftfahrzeugbremsanlage |
TWI717239B (zh) * | 2020-03-23 | 2021-01-21 | 川景企業有限公司 | 煞車油沸點檢測器改良構造 |
Also Published As
Publication number | Publication date |
---|---|
JP2007504453A (ja) | 2007-03-01 |
MXPA06002359A (es) | 2006-06-20 |
WO2005024414A3 (de) | 2005-05-12 |
EP1664690A2 (de) | 2006-06-07 |
US20060283244A1 (en) | 2006-12-21 |
DE112004001596D2 (de) | 2006-06-29 |
KR20060095948A (ko) | 2006-09-05 |
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