EP3212929A1 - Dispositif et procédé pour détecter une pression de fonctionnement d'une pompe à fluide pour un véhicule à moteur - Google Patents
Dispositif et procédé pour détecter une pression de fonctionnement d'une pompe à fluide pour un véhicule à moteurInfo
- Publication number
- EP3212929A1 EP3212929A1 EP15791259.3A EP15791259A EP3212929A1 EP 3212929 A1 EP3212929 A1 EP 3212929A1 EP 15791259 A EP15791259 A EP 15791259A EP 3212929 A1 EP3212929 A1 EP 3212929A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pump
- pressure
- fluid
- fluid pump
- current
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
- F04B49/065—Control using electricity and making use of computers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2203/00—Motor parameters
- F04B2203/02—Motor parameters of rotating electric motors
- F04B2203/0201—Current
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B2203/00—Motor parameters
- F04B2203/02—Motor parameters of rotating electric motors
- F04B2203/0209—Rotational speed
Definitions
- the present invention relates to a pressure control and a limitation for fluid pumps.
- an apparatus and method relates to for detecting an operating pressure of a fluid pump for a motor vehicle.
- a first aspect of the present invention relates to a device for detecting an operating pressure of a fluid pump for a motor vehicle, wherein the device comprises: a Drehzah ⁇ ler signeds worn, which is adapted to detect a rotation ⁇ number of the fluid pump; a pump flow sensing device configured to detect a flow of the fluid pump; a memory device designed for this purpose is to store a pump flow-speed characteristic field with at least ei ⁇ nem pressure reference point; , on the detected rotational speed, the current and the stored detected pumping current-speed characteristic curves to determine a center of the printer and ⁇ averaging means which is adapted based a prevailing in the fluid pump fluid pressure.
- current as used by the present invention also includes a pumping current as stored in the pumping current-speed characteristic map.
- the present invention relates to a fluid pump for a motor vehicle, wherein the fluid pump comprises a device according to the first aspect or according to any embodiment of the first aspect.
- a method for detecting an operating pressure of a Fluidpum ⁇ pe for a motor vehicle comprising the steps of: detecting a rotational speed of the fluid pump by means of a rotational speed detecting means; Detecting a pumping current of the fluid pump by means of a pump current detecting device; From ⁇ store a pump current-speed characteristic field with at least ⁇ least one or two pressure reference points by means of a memory means; and determining a prevailing in the fluid pump fluid pressure ⁇ based on the detected speed, the detected current and the stored pump current-rotating ⁇ number characteristic field by means of a printer means.
- the present invention advantageously allows to provide two or more additional points of reference for the phase current of a Flu ⁇ idpumpe at a known fluid pressure.
- the present invention enables a first additional reference point to be determined when the The pump speed is, for example, again increased by a precise ⁇ predetermined value after the opening point in ⁇ play, the point A, a Kalibrierventils is achieved.
- the present invention enables, for example, advantageous ⁇ way, the speed-dependent increase of the volume flow, that is, the slope of the flow characteristic of the fluid pump, store at ge ⁇ interviewedem pressure and to be deposited.
- the pressure regulator has a small and well-known example, volumenstromab- dependent slope, wherein the pressure of the pressure regulator with the Vo ⁇ volume flow increases.
- the present invention now performs be ⁇ knew increase of the volume flow by an increase in speed and can attribute the pump current then determined a limited hours ⁇ th fluid pressure.
- the apparatus further comprises a Rege ⁇ averaging means which is adapted to provide based on the determined fluid pressure, a pressure control for the Flu ⁇ idpumpe.
- the apparatus therefor is ⁇ puts to use a reference valve in order to determine the at least one pressure reference point of the pump current-speed characteristic ⁇ field and (2013)spei in the storage device ⁇ manuals.
- the device is adapted.
- the apparatus therefor is ⁇ inserted to determine further pressure reference points of the pump current-speed characteristic curves and further to determine a speed-dependent increase in the volume flow of the fluid pump.
- the Druckerstoffungsein ⁇ direction is adapted also based on a detected fuel temperature or a detected, the fuel ⁇ quality parameters describing or a detected force ⁇ stoffeinsprit zvolumina the fluid pressure to investigate.
- the Druckerstoffungsein ⁇ direction is adapted, further utilizing a handenen before ⁇ switching point of a coupled with the fluid pump pressure switch a spreading of the fluid pressure in the pump ⁇ current-speed characteristic curves to determine.
- the memory device is adapted to store the pump current-speed characteristic curves with the spreading of the fluid pressure.
- FIG. 1 is a schematic representation of an apparatus for detecting an operating pressure of a fluid pump according to an embodiment of the present invention
- FIG. 1 is a schematic representation of a flowchart of a method for detecting an operating pressure of a fluid pump for a motor vehicle according to another embodiment of the present invention
- FIG. 1 is a schematic representation of a fluid pump for a motor vehicle according to another advantageous embodiment of the present invention
- Fig. 4 is a schematic representation of a current consumption-speed diagram for a fluid pump for explaining the present invention
- a schematic representation of a power consumption-speed diagram of a fluid pump for a motor driving tool to explain the present invention for example for a fuel pump
- Fig. 6 is a schematic representation of a Stroming- speed diagram, a fluid pump for a motor driving ⁇ imaging to illustrate the invention
- Fig. 7 is a schematic representation of a Stroming- speed diagram, a fluid pump for a motor driving ⁇ imaging to illustrate the present invention.
- Fig. 1 shows a schematic representation of a Vorrich- processing for detecting an operating pressure of a fluid pump for a motor vehicle according to an embodiment of the present invention ⁇ .
- a device 1 for detecting an operating pressure of a Flu- idpumpe 100 for an automotive vehicle 2 comprises, for example, a rotational speed detection means 10, a Pumpenstromer resets- device 20, a storage device 30, a center of the printer ⁇ averaging means 40 and control means 50. Further, the control device 50 even in a other control unit can be executed.
- the regulation device 50 can be used, for example, directly or z. B. via a vehicle ⁇ bus system z. B. CAN be connected to the device.
- the speed detection device 10 is designed, for example, to detect a rotational speed of the fluid pump 100.
- the pump current detection device 20 is designed, for example, to detect a pump current of the fluid pump 100.
- the storage device 30 is for example adapted to store a pump current-speed characteristic field with at least one pressure reference point or with at least two pressure reference point ⁇ th.
- the printer averaging means 40 is for example configured to determine, based on the detected rotational speed, the detected pump current and the stored pump current-speed characteristic curves ⁇ a prevailing in the fluid pump 100 Flu- iddruck.
- the control device 50 is designed, for example, to provide pressure regulation for the fluid pump 100 based on the determined fluid pressure.
- FIG. 2 shows a schematic representation of a method for detecting an operating pressure of a fluid pump 100 for a motor vehicle 2.
- the method comprises, for example, the following steps:
- a detection Sl of a rotational speed of the fluid pump 100 by means of a rotational speed detection device 10 takes place.
- a detection S2 of a pump flow of the fluid pump 100 by means of a pump current detection means 20 As a third step of the method, for example, a storage S3 S3 a pump flow-speed characteristic field with at least one pressure reference point by means of a Spei ⁇ cher worn 30 takes place. As a fourth step of the method, for example, determining S4 of a prevailing in the fluid pump 100 fluid pressure based on the detected speed, the detected pump current and the stored pump current-speed characteristic field by means of a printer means means 40th
- An opening pressure of the reference valve is bar, for example, at 8, a pump current is, for example 11 A, a Volu ⁇ volume flow, which the following pump is promoted, is ⁇ play, at 10 1 / h, a speed of the fluid pump is ⁇ play, at about 3000 revolutions / min. Subsequently, for example, the speed of the fluid pump, for example, increased to 5000 revolutions / min, the volume ⁇ flow increases to 100 1 / h, the opening pressure of the reference valve can then be calculated to 8.1 bar, a pump current of 12 A is measured.
- the slope of the whole Fel ⁇ can now be determined by the speed. If the method is repeated with several speeds in defined steps, a curvature of the current curves can also be determined.
- the ISIN field pump current-speed characteristic curves can be adjusted on the basis of this re ⁇ ference points.
- FIG. 3 shows a schematic representation of a fluid pump according to a further embodiment of the present invention.
- a fluid pump 100 for a motor vehicle 2 comprises example ⁇ , a device 1 as the pump control electronics and electrical ei ⁇ ne combustion engine 110. Furthermore, the fluid pump comprising 100, a mechanical pump stage 120 which is coupled via a shaft.
- FIG. 4 shows a schematic representation of a current consumption-speed diagram for explaining the invention.
- FIG. 4 shows a schematic representation of Stromaufnah me a fluid pump over the speed, depending on the respective system pressure PO to P4. Furthermore, the Fig. 4 shows an examplary ⁇ specific representation of the threshold curves P2 and P3, which are used in ⁇ playing manner for warning messages, that is be ⁇ there is the system pressure above this as permissible in ⁇ the limit values, an appropriate warning message.
- FIG. 5 shows a schematic representation of the characteristic curve of the pump current over the rotational speed when using a reference valve Refe ⁇ .
- the opening point of the calibration valve "A" is determined in a known method as a reference value and used to improve the system accuracy.
- Fig. 6 shows a schematic representation of the characteristic curve of the pump current as the rotational speed when using a Refe rence ⁇ valve.
- the opening point of the Kalibrierventils "A" is determined in a known method as a reference value.
- the to ⁇ additional determination and advantageous use of the points B0, Bl, B2, and other points is made possible by the present invention.
- the point CO is controlled by the switching a pressurized ⁇ switch determines, as also by the present inventions PHg advantageously used, as indicated by the name "switching ⁇ point reference switch".
- Fig. 7 shows a schematic representation of the characteristic curve of the pump current as the rotational speed showing a Sprei ⁇ wetting characteristic of the field by a viscosity influence.
- the points Cl, C2 have been determined by switching the pressure switch at a switching pressure, but at different speeds or flow rates of the fluid pump. Likewise, further points can be determined by switching points of other switches.
- the present invention advantageously makes it possible to determine by Ermit ⁇ stuffs of a further reference point, the pitch of the Kennli ⁇ nienfelds on pressure, that is change in current over Drucktechnike ⁇ tion.
- a cost-effective pressure ⁇ switch is suitable, which closes in the workspace at a certain pressure and thus allows continuous tracking of Kenn ⁇ field expansion.
- the present invention allows when this pressure switch switches at a pressure that can be approached at any time and arbitrarily by the pump control or by the engine control even in the normal operation of the motor vehicle ⁇ .
- the working pressure can range from 2 to 7 bar, the core working range from 3 to 6 bar.
- the system pressure at ⁇ example increased to 6 bar. If the pressure switch is set to 4 bar, this switching point can be cyclically ⁇ periodically approached for referencing in most times of normal operation, without the mileage or the emission of carbon dioxide is affected.
Abstract
L'invention concerne un dispositif (1) destiné à détecter une pression de fonctionnement d'une pompe à fluide (100) pour un véhicule à moteur, ledit dispositif comprenant : un dispositif de détection de vitesse de rotation (10), conçu pour détecter une vitesse de rotation de la pompe à fluide (100); un dispositif de mesure d'intensité de courant de pompe (20), conçu pour mesurer une intensité de courant de la pompe à fluide (100); un dispositif d'enregistrement (30), conçu pour enregistrer un diagramme de courbes caractéristiques intensité de courant/vitesse de rotation avec au moins un point de référence de pression; et un dispositif de détermination de pression (40), conçu pour déterminer, sur la base de la vitesse de rotation détectée, de l'intensité de courant mesurée et du diagramme de courbes caractéristiques intensité de courant/vitesse de rotation enregistré, une pression de fluide régnant dans la pompe à fluide (100).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014222335.0A DE102014222335B4 (de) | 2014-10-31 | 2014-10-31 | Vorrichtung und Verfahren zum Erfassen eines Betriebsdrucks einer Fluidpumpe für ein Kraftfahrzeug |
PCT/EP2015/074408 WO2016066504A1 (fr) | 2014-10-31 | 2015-10-21 | Dispositif et procédé pour détecter une pression de fonctionnement d'une pompe à fluide pour un véhicule à moteur |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3212929A1 true EP3212929A1 (fr) | 2017-09-06 |
Family
ID=54478001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15791259.3A Withdrawn EP3212929A1 (fr) | 2014-10-31 | 2015-10-21 | Dispositif et procédé pour détecter une pression de fonctionnement d'une pompe à fluide pour un véhicule à moteur |
Country Status (5)
Country | Link |
---|---|
US (1) | US20180017050A1 (fr) |
EP (1) | EP3212929A1 (fr) |
CN (1) | CN107002645B (fr) |
DE (1) | DE102014222335B4 (fr) |
WO (1) | WO2016066504A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014226972A1 (de) * | 2014-12-23 | 2016-06-23 | Continental Automotive Gmbh | Fördervorrichtung zum Befördern eines Mediums und zum Begrenzen eines Systemdrucks |
DE102016215228A1 (de) * | 2016-08-16 | 2018-02-22 | Zf Friedrichshafen Ag | Verfahren zum Betätigen eines Hydrauliksystems eines Getriebes mit einer verstellbaren Hydraulikpumpe |
DE102016216765A1 (de) * | 2016-09-05 | 2017-06-14 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Verfahren und Fluidpumpe zum Fördern eines Fluids in einem Fluidkreislauf eines Kraftfahrzeugs |
CN109386416B (zh) * | 2017-08-02 | 2021-01-22 | 纬湃汽车电子(芜湖)有限公司 | 用于燃油泵的干运转诊断系统与方法 |
DE102017221333B4 (de) | 2017-11-28 | 2021-01-28 | Vitesco Technologies GmbH | Toleranz- und Verschleißkompensation einer Kraftstoffpumpe |
DE102017221342B4 (de) * | 2017-11-28 | 2021-01-28 | Vitesco Technologies GmbH | Toleranz- und Verschleißkompensation einer Kraftstoffpumpe |
DE102018217230A1 (de) * | 2018-10-09 | 2020-04-09 | Robert Bosch Gmbh | Verfahren und Vorrichtung zur Ansteuerung einer Fluidpumpe |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101213528B1 (ko) * | 2010-05-20 | 2012-12-18 | 가부시키가이샤 고마쓰 세이사쿠쇼 | 작업 차량 및 작업 차량의 제어 방법 |
DE102010033317B4 (de) * | 2010-08-04 | 2013-10-10 | Continental Automotive Gmbh | Verfahren zum Bereiben eines Kraftstoffeinspritzsystems und Einspritzsystem |
DE102010039818A1 (de) * | 2010-08-26 | 2012-03-01 | Continental Teves Ag & Co. Ohg | Verfahren zur drucksensorlosen Druckmessung in einem Druckregelaggregat einer Kraftfahrzeugbremsanlage |
JP5591679B2 (ja) * | 2010-12-17 | 2014-09-17 | 愛三工業株式会社 | 燃料供給装置 |
DE102011010218B4 (de) * | 2011-02-03 | 2019-09-12 | Robert Bosch Gmbh | Verfahren zum Regeln des Drucks eines mittels einer drehzahlgeregelten Pumpe geförderten Fluids |
CN103516287B (zh) * | 2012-06-19 | 2017-11-17 | 博世汽车柴油系统有限公司 | 计算方法和计算装置 |
US9528519B2 (en) * | 2012-10-12 | 2016-12-27 | Continental Automotive Systems, Inc. | Pressure control by phase current and initial adjustment at car line |
JP5831765B2 (ja) * | 2012-10-15 | 2015-12-09 | 株式会社デンソー | 燃料供給装置 |
JP6067411B2 (ja) * | 2013-02-25 | 2017-01-25 | 株式会社ケーヒン | 内燃機関の燃料供給装置 |
-
2014
- 2014-10-31 DE DE102014222335.0A patent/DE102014222335B4/de active Active
-
2015
- 2015-10-21 EP EP15791259.3A patent/EP3212929A1/fr not_active Withdrawn
- 2015-10-21 CN CN201580067429.5A patent/CN107002645B/zh active Active
- 2015-10-21 US US15/522,566 patent/US20180017050A1/en not_active Abandoned
- 2015-10-21 WO PCT/EP2015/074408 patent/WO2016066504A1/fr active Application Filing
Also Published As
Publication number | Publication date |
---|---|
US20180017050A1 (en) | 2018-01-18 |
WO2016066504A1 (fr) | 2016-05-06 |
CN107002645A (zh) | 2017-08-01 |
DE102014222335B4 (de) | 2020-09-03 |
DE102014222335A1 (de) | 2016-05-04 |
CN107002645B (zh) | 2021-09-14 |
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