EP3325804A1 - Verfahren zur druckmessung - Google Patents
Verfahren zur druckmessungInfo
- Publication number
- EP3325804A1 EP3325804A1 EP16710928.9A EP16710928A EP3325804A1 EP 3325804 A1 EP3325804 A1 EP 3325804A1 EP 16710928 A EP16710928 A EP 16710928A EP 3325804 A1 EP3325804 A1 EP 3325804A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compressor
- electric motor
- pressure
- motor
- control device
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000009530 blood pressure measurement Methods 0.000 title description 6
- 230000001419 dependent effect Effects 0.000 claims abstract description 6
- 230000015556 catabolic process Effects 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 9
- 239000000565 sealant Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- 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
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
-
- 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
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/06—Mobile combinations
-
- 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
- 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
- F04B49/08—Regulating by delivery pressure
-
- 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
- F04B2205/00—Fluid parameters
- F04B2205/05—Pressure after the pump outlet
Definitions
- the invention relates to a method for measuring the pressure generated by an electric motor-driven compressor, preferably by an electric motor via a sliding-crank gear driven reciprocating compressor.
- the invention relates to a portable small compressor with a driven by an electric motor compressor, preferably small compressor in one
- Pannen Anlagenndvorrauma for sealing and inflating vehicle tires, with a control device or a control unit for controlling the
- These portable and lightweight devices include the compressor unit as a pressurized gas source, further comprising a sealant container for a self-sealing sealable in the inflatable article for sealing the tire damage, a valve and distributor unit for sealant and compressed gas and are connected to an inlet line connectable to the compressed gas source at the inflatable
- the sealant can be applied manually by the user or by means of the air compressor.
- the procedure for restoring mobility using these breakdown sets requires a number of complex activities to be performed by the user of the Breakdown kits have to be executed manually. These include, for example, the detection of the puncture, the application of the sealant, the monitoring of the sealing process using a pressure gauge and a timer, a defined movement of the vehicle to distribute the sealant and the assessment of the repair result
- EP 2 196 305 A1 discloses a method for operating a breakdown assistance system which operates with a sealant and includes a compressor, in which connection of the flow of sealant can be effected automatically on the basis of a comparison of a pressure difference with a predetermined threshold value.
- Pressure sensors are also regularly installed at the location of the compressor where the highest pressure occurs, namely at the compressor outlet. Therefore, the typically high air temperature at the compressor outlet / compressor outlet places special demands on the required pressure sensor. Due to the corresponding adaptation of the pressure sensors to high temperatures, of course, increased Production costs, which in turn mean that electronically-supported breakdown sets are so far little used.
- the object of the invention was a cost-effective method
- the dependent on the change in the pressure at the compressor output change of the average motor current of the compressor driving electric motor is determined and as a pressure-proportional size for the operation of the compressor
- Control device provided in the form of an input or using z.
- B a user interface displayed.
- the measurement or determination of the average motor current according to the method of the invention thus does not require a separate pressure sensor. Compared to an electronic pressure sensor, this process is cheaper and much easier to integrate from a production point of view.
- the thermal load for a pressure sensor is no longer a criterion.
- a thermal load plays no role and such a shunt resistor can be easily mounted, namely without design changes to the other components are needed.
- the shunt resistor as a "current sensor” can thus be integrated directly into the circuit of the motor control unit.
- a further advantageous embodiment is that determines the dependent on the change in pressure at the compressor output change of the average motor current of the compressor driving electric motor and as a pressure-proportional authoritative and essential input of a control device for controlling the
- Compressor or a device comprising a compressor is provided, possibly as the only reference variable. This makes it possible, directly and depending on the correlation between motor current and output pressure of the compressor
- Electric motor is in a quadratic dependence on the voltage applied to the compressor outlet back pressure. About a predetermined square
- Conversion function or value table it is possible to calculate the back pressure with sufficient accuracy for the application.
- the inventive method is particularly suitable for use in a portable small compressor with a driven by an electric motor
- Compressor preferably in a small compressor in a breakdown assistance device for sealing and inflating vehicle tires, with a control device for controlling the small compressor and / or the breakdown assistance device, wherein one of the input signals of the control of the output pressure generated by the compressor, the method according to the motor current is determined.
- such a small compressor is designed so that it has a reciprocating electric motor driven by a reciprocating gear compressor and that the control device with a motor control unit for the driving electric motor and / or a user interface is communicatively connectable, one for determining the average motor current of the electric motor suitable shunt resistor is provided on the electronic engine control unit and the determined by the shunt resistor mean motor current is processed as an input from the controller.
- the control device with a motor control unit for the driving electric motor and / or a user interface is communicatively connectable
- one for determining the average motor current of the electric motor suitable shunt resistor is provided on the electronic engine control unit and the determined by the shunt resistor mean motor current is processed as an input from the controller.
- no pressure sensor is required, wherein, nevertheless, and by the correlation between pressure at the compressor outlet and motor current, the pressure is the decisive factor.
- the maximum pressure limit of a small compressor in a breakdown assistance device then becomes dependent on a preset for different types of tires and for a maximum pressure
- Fig. 1 schematically shows the construction of a small compressor in one
- Fig. 2 is a typical curve for illustrating the dependence of the mean
- MD Motor Drive
- UI User Interface
- an electronic "pressure measurement” is provided, which takes place in the applied here embodiment of the method by evaluating the data of a current sensor in the form of an integrated circuit in the motor control unit 5, not shown here shunt resistor.
- Electric motor is in a quadratic dependence on the voltage applied to the compressor outlet back pressure.
- a predefined conversion function or a value table it is possible to calculate the back pressure with sufficient accuracy for the application.
- Control Device Control Device / Control Unit Engine Control Unit / Motor Driver User Interface
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL16710928T PL3325804T3 (pl) | 2015-07-24 | 2016-03-03 | Sposób pomiaru ciśnienia |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015214006.7A DE102015214006A1 (de) | 2015-07-24 | 2015-07-24 | Verfahren zur Druckmessung |
PCT/EP2016/054507 WO2017016680A1 (de) | 2015-07-24 | 2016-03-03 | Verfahren zur druckmessung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3325804A1 true EP3325804A1 (de) | 2018-05-30 |
EP3325804B1 EP3325804B1 (de) | 2020-12-09 |
Family
ID=55587240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16710928.9A Active EP3325804B1 (de) | 2015-07-24 | 2016-03-03 | Verfahren zur druckmessung |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP3325804B1 (de) |
CN (2) | CN107923377A (de) |
DE (1) | DE102015214006A1 (de) |
PL (1) | PL3325804T3 (de) |
WO (1) | WO2017016680A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017212040A1 (de) | 2017-07-13 | 2019-01-17 | Continental Reifen Deutschland Gmbh | Verfahren zur gewichtsabhängigen Regelung des Innendrucks eines durch eine Gewichts- oder Traglast belasteten Tragkörpers |
AT522933B1 (de) | 2019-09-06 | 2021-04-15 | Weber Hydraulik Gmbh | Tragbares, akkubetriebenes Hydraulikaggregat für hydraulische Rettungswerkzeuge |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5244357A (en) * | 1990-03-16 | 1993-09-14 | Hoerbiger Ventilwerke Aktiengesellshaft | Method for continuous control of delivery rate of reciprocating compressors and device for carrying out the method |
JP2004297981A (ja) * | 2003-03-28 | 2004-10-21 | Sanyo Electric Co Ltd | 圧縮機制御装置 |
US20060045749A1 (en) * | 2004-08-30 | 2006-03-02 | Powermate Corporation | Air compressor utilizing an electronic control system |
US20080145245A1 (en) * | 2004-12-22 | 2008-06-19 | Wen-San Chou | Compressor for tire inflating combination |
US7193382B2 (en) * | 2005-07-13 | 2007-03-20 | Siemens Vdo Halla, Ltd. | Apparatus for detecting over current of motor in vehicle |
JP4975328B2 (ja) * | 2006-01-25 | 2012-07-11 | サンデン株式会社 | 電動圧縮機 |
US7789112B1 (en) * | 2006-11-09 | 2010-09-07 | Wise Robert W | Method and system for inflating an inflatable object |
ITTO20080493A1 (it) * | 2008-06-23 | 2009-12-24 | Tek Global Srl | Kit per la riparazione e il gonfiaggio di articoli gonfiabili provvisto di un manometro perfezionato e relativo metodo |
ATE547237T1 (de) | 2008-12-11 | 2012-03-15 | Continental Reifen Deutschland | Verfahren zum betrieb eines pannenhilfesystems und pannenhilfesystem |
US8441222B2 (en) * | 2009-07-15 | 2013-05-14 | Integrated Designs, L.P. | System and method for determining pump pressure based on motor current |
EP2640973B1 (de) * | 2010-11-17 | 2018-10-03 | KSB SE & Co. KGaA | Verfahren und regelvorrichtung zur drehzahlvariablen regelung eines verdrängerpumpenaggregates sowie verdrängerpumpenanordnung |
US20120177514A1 (en) * | 2011-01-12 | 2012-07-12 | Hahn Gregory W | Discharge pressure estimation for compressor |
JP5884481B2 (ja) * | 2011-12-28 | 2016-03-15 | 株式会社ジェイテクト | モータ制御装置および電動ポンプユニット |
JP5891787B2 (ja) * | 2011-12-28 | 2016-03-23 | 株式会社ジェイテクト | オイル供給システム |
KR101174430B1 (ko) * | 2012-01-20 | 2012-08-16 | 김금균 | 압축기 보조제어장치 및 그에 의한 압축기 보조제어방법 |
EP2820301A1 (de) * | 2012-02-29 | 2015-01-07 | Lukas Hydraulik GmbH | Verfahren zum betrieb einer hydraulikpumpenanordnung sowie hydraulikpumpenanordnung |
CN102628437B (zh) * | 2012-04-24 | 2014-07-16 | 西安建筑科技大学 | 永磁伺服电机驱动定量泵流量、压力间接测量系统 |
CN204493107U (zh) * | 2015-02-13 | 2015-07-22 | 余姚市宁奇电器有限公司 | 一种数字控制充气泵 |
-
2015
- 2015-07-24 DE DE102015214006.7A patent/DE102015214006A1/de not_active Withdrawn
-
2016
- 2016-03-03 WO PCT/EP2016/054507 patent/WO2017016680A1/de active Application Filing
- 2016-03-03 EP EP16710928.9A patent/EP3325804B1/de active Active
- 2016-03-03 PL PL16710928T patent/PL3325804T3/pl unknown
- 2016-03-03 CN CN201680042946.1A patent/CN107923377A/zh active Pending
- 2016-03-03 CN CN202210140820.5A patent/CN114458573A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
CN114458573A (zh) | 2022-05-10 |
PL3325804T3 (pl) | 2021-06-28 |
WO2017016680A1 (de) | 2017-02-02 |
EP3325804B1 (de) | 2020-12-09 |
CN107923377A (zh) | 2018-04-17 |
DE102015214006A1 (de) | 2017-01-26 |
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