CN110792581A - 泵和用于泵的运行以及用于确定上和/或下止点的方法 - Google Patents

泵和用于泵的运行以及用于确定上和/或下止点的方法 Download PDF

Info

Publication number
CN110792581A
CN110792581A CN201910712187.0A CN201910712187A CN110792581A CN 110792581 A CN110792581 A CN 110792581A CN 201910712187 A CN201910712187 A CN 201910712187A CN 110792581 A CN110792581 A CN 110792581A
Authority
CN
China
Prior art keywords
pump
dead center
diaphragm
sensor
top dead
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
Application number
CN201910712187.0A
Other languages
English (en)
Inventor
A.马茨纳
K.谢菲尔
M.科瓦奇
S.格佩尔特
S.策尔宾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of CN110792581A publication Critical patent/CN110792581A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, 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
    • F04B49/06Control using electricity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B7/00Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0076Piston machines or pumps characterised by having positively-driven valving the members being actuated by electro-magnetic means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00Machines, pumps, or pumping installations having flexible working members
    • F04B43/02Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/04Pumps having electric drive
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, 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
    • F04B49/06Control using electricity
    • F04B49/065Control using electricity and making use of computers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, 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
    • F04B49/22Control, 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 by means of valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B51/00Testing machines, pumps, or pumping installations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10Valves; Arrangement of valves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D5/00Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/142Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D5/00Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/16Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying resistance
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D5/00Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/10Amplitude; Power
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066Selective catalytic reduction [SCR]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2201/00Pump parameters
    • F04B2201/02Piston parameters
    • F04B2201/0201Position of the piston
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D5/00Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/142Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
    • G01D5/145Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Reciprocating Pumps (AREA)

Abstract

本发明涉及一种泵,其具有带有至少一个传感器的膜片式泵模块(10),传感器设置用于探测膜片式泵模块(10)的上和/或下止点的到达。此外,本发明涉及一种用于确定上和/或下止点的方法。当泵此外具有入口(20)和出口(30)时,则泵的运行可以在输送运行和回送运行中进行,其中在入口(20)中布置有入口阀(21),在出口(30)中布置有出口阀(31),并且每个阀(21、31)具有:封闭元件(22、32),其设置用于在关闭位置中封闭入口(20)和出口(30);复位元件(23、33),其设置用于借助复位力将封闭元件(22、32)按压到关闭位置中;以及促动器(24、34),其设置用于将封闭元件(22、32)从关闭位置中运动出来。

Description

泵和用于泵的运行以及用于确定上和/或下止点的方法
技术领域
本发明涉及一种泵,泵实施成膜片式泵。此外,本发明涉及一种用于确定泵的膜片式泵模块的上止点和/或下止点的方法。此外,本发明涉及一种用于运行泵的方法。此外,本发明涉及一种实施其中至少一个方法的每个步骤的计算机程序,以及一种机器可读的存储介质,存储介质存储计算机程序。最后,本发明涉及一种设置用于实施该方法的电子控制器。
背景技术
为了满足越来越严格的排气法规的制定而需要的是,减小内燃机、尤其是柴油机的排气中的氮氧化物。为此已知的是,在排气系中布置SCR催化器(selective catalyticreduction),其在存在还原剂的情况下将在内燃机的排气中包含的氮氧化物还原为氮气。由此,排气中的氮氧化物的份额可以明显减小。为了反应的流程需要氨,其与排气混合。通常使用含水的尿素溶液(尿素水溶液;HWL),其在SCR催化器前被喷入气体系中,并且作用为分离氨的反应物。32.5%的含水的尿素溶液在商标名AdBlue®下可以商业方式购买。
因为AdBlue®的凝固点在-11.5ºC,所以在冬天温度下需要的是,在切断内燃机后,将HWL从计量模块泵回还原剂箱中,以便阻止在HWL凝固时损坏计量模块。如果膜片式泵用作针对HWL的输送泵,那么然而仅能够沿输送方向实现泵过程。该问题的解决方案是,设置单独的回送泵。备选地也可以设置阀系统,其能够实现选择性地沿输送方向或沿回送方向引导HWL流。然而,这种阀系统可以导致非密封性,由此可以导致压力损失,并且腐蚀性的HWL可能逸出。
发明内容
本发明基于如下认识,即当在泵的运行中可以准确确定泵的上止点时,可以沿两个不同的方向、即输送方向和回送方向引导单向的(unidirektional)膜片式泵的液体流。为此设置了一种泵,其具有膜片式泵模块,膜片式泵模块具有至少一个传感器。传感器设置用于探测膜片式泵模块的上和/或下止点的到达。此外设置了用于确定泵的膜片式泵模块的上和/或下止点的方法,在其中借助传感器探测上止点。膜片式泵尤其是往复式活塞膜片式泵或是旋转膜片式泵。在往复式活塞膜片式泵的情况下,膜片式泵模块的上止点相应于其往复式活塞的上止点,膜片式泵模块的下止点相应于其往复式活塞的上止点。在泵和方法的不同的实施方式中,传感器可以以不同的方式设计。
在泵的实施方式中设置的是,传感器是麦克风,麦克风设置用于探测膜片式泵模块的膜片的撞击噪音。此外,在膜片式泵模块中设置了止挡部,止挡部布置成:当膜片式泵模块达到其上止点时,膜片撞击到止挡部上。因此,在使用根据该实施方式的泵时,在该方法中设置的是,当麦克风探测到撞击噪音时,识别上止点。
在泵的另一实施方式中,传感器是照相机或光探测器。如果传感器是光探测器,那么此外也还可以设置光源。照相机或光探测器设置用于探测膜片式泵模块的膜片的位置。在使用泵的情况下,当照相机或光探测器探测到膜片到达其上方位置时,根据该实施方式在该方法中识别上止点。上方位置在此理解为如下位置,在该位置中,膜片得到其最大偏转。
在泵的又另一实施方式中,传感器是霍尔效应传感器。该霍尔效应传感器设置用于测量与膜片式泵模块的膜片的间距。在使用根据该实施例的泵时,当探测到在霍尔效应传感器与膜片之间的间距具有其最小值时,则识别上止点。
在泵的又另一实施例中,传感器同样是霍尔效应传感器。该霍尔效应传感器然而设置用于在膜片式泵模块的磁场中测量不均匀性。为此,原则上可以使用膜片式泵模块的马达控制器的根据标准使用的霍尔效应传感器。马达控制器然而在正常情况下不会识别磁场中的不均匀性。这种不均匀性可以以如下方式人工地产生:在膜片式泵模块的磁体中设置不均匀性。不均匀性优选利用膜片式泵模块的上或下止点取向。在使用根据该实施方式的泵时,当霍尔效应传感器探测到出现不均匀性时,识别上或下止点。
在泵的又另一实施方式中,传感器是TRM传感器(Tunnel Magneto Resistance)。此外,在泵的该实施方式中,在膜片式泵模块中布置附加的磁体。尤其地,磁体布置在马达轴上,并且利用膜片式泵模块的上或下止点取向。TRM传感器设置用于探测磁体的转动角度。如果使用根据该实施方式的泵,那么在该方法中可以从磁体的转动角度来确定上或下止点。
传感器可以在本发明的不同的实施方式中布置在泵的泵空间中或泵的衔铁的工作区域中。
如果上或下止点是已知的,那么这例如能够实现泵,其中泵具有入口和出口,其中在入口中布置有入口阀,在出口中布置有出口阀。每个阀具有封闭元件,封闭元件设置用于在关闭位置中封闭入口或出口。此外,每个阀具有尤其是形式为弹簧的复位元件,复位元件设置用于借助复位力将封闭元件按压到关闭位置中。最后,每个阀具有促动器,促动器设置用于将封闭元件从关闭位置中运动出来。如果操纵促动器,那么促动器克服复位力,从而打开入口阀或出口阀。如果对促动器的操纵结束,那么复位力将相应的封闭元件按压回到封闭位置中,并且入口阀或出口阀又关闭。
这种泵可以在输送运行和回送运行中运行。在输送运行中,当膜片式泵模块从下止点朝上止点运动时,打开入口阀并且关闭出口阀,并且当膜片式泵模块从上止点朝下止点运动时,关闭入口阀并且打开出口阀。在回送运行中相反地,当膜片式泵模块从下止点朝上止点运动时,关闭入口阀并且打开出口阀,并且当膜片式泵模块从上止点朝下止点运动时,打开入口阀并且关闭出口阀。这能够利用唯一的泵实现输送运行和回送运行,其中仅在泵的入口和出口中设置阀,从而可以最小化非密封性。
计算机程序设置用于:当在计算设备或电子控制器上实施计算机程序时,执行用于确定上和/或下止点的方法和/或用于运行泵的方法的每个步骤。计算机程序能够实现在电子控制器中实施方法的不同的实施方式,而不必在此进行结构上的改变。为此,计算机程序存储在机器可读的存储介质上。
通过将计算机程序安装到常规的电子控制器上得到下述电子控制器,其设置用于确定泵的膜片式泵模块的上和/或下止点,和/或运行泵。
附图说明
本发明的实施例在附图中示出并且在随后的描述中详细阐述。
图1示出了根据本发明的实施例的泵的横截面图;
图2示出了根据本发明的实施例的泵的示意图;
图3示出了根据图2的在第一运行状态中的泵的示意图;
图4示出了根据图2的在第二运行状态中的泵的示意图;
图5示出了根据图2的在第三运行状态中的泵的示意图;
图6示出了根据图2的在第四运行状态中的泵的示意图;
图7示出了根据本发明的实施例的泵的往复式活塞的偏转的时间曲线的图表以及对泵的入口阀和泵的出口阀的操控;
图8示出了根据本发明的实施例的泵的膜片式泵模块的示意性的横截面图;
图9示出了根据本发明的另一实施例的泵的膜片式泵模块的示意性的横截面图;
图10示出了根据本发明的又另一的实施例的泵的膜片式泵模块的示意性的横截面图;
图11示出了根据本发明的又另一的实施例的泵的膜片式泵模块的示意性的横截面图;
图12示出了根据本发明的又另一的实施例的泵的膜片式泵模块的示意性的横截面图。
具体实施方式
在泵的随后的所示的实施例中,如图1所示的那样,泵具有带有入口20和出口30的膜片式泵模块10。膜片式泵模块实施成往复式活塞膜片式泵的往复式活塞膜片式泵模块。在入口20中布置有入口阀21。入口阀具有封闭元件22,封闭元件由形式为弹簧的复位元件23按压到入口20中,从而使封闭元件封闭入口。可电操控的促动器24设置用于克服弹簧的复位力地拉回封闭元件22,从而打开入口20。当对促动器24的通电结束时,复位元件23将封闭元件22按压回入口22中,从而又封闭入口。以相同的方式,在出口30中布置有出口阀31。出口阀具有封闭元件32,封闭元件借助形式为弹簧的复位元件33按压到出口30中。可电操控的促动器34设置用于通过拉回封闭元件32来打开出口阀31。如果结束对促动器34的通电,那么出口阀31又被关闭。
在图2中以示意性的方式示出前述的部件。在此,两个阀21、31关闭。图3至6示出了液体流、例如尿素水溶液流如何可以通过泵来控制,其方法是,分别打开其中一个阀21、31并且关闭另一阀。如图7所示的那样,打开和关闭在此必须与膜片式泵模块10的往复式活塞的运动同步。往复式活塞的偏转ω在下止点UT与上止点OT之间正弦地变化。在此,此外利用阀21、31的时间t说明操控A,其中A=0相应于切断的促动器24、34,并且A=1相应于接通的促动器24、34。操控A被说明为针对入口阀21的操控A21和针对出口阀31的操控A31。入口阀21在此在时间段t21+中打开,并且在时间段t21-中关闭。出口阀31在时间段t31+中打开,并且在时间段t31-中关闭。抽吸延迟时间ts位于打开过程之前。随后打开入口阀21,由此得到图3所示的状态。往复式活塞从其下止点UT运动到其上止点OT,并且液体被吸入到膜片式泵模块10中。对入口阀21的促动器24的通电在上止点OT处结束。在从下止点UT出发经过按压延迟时间tp后,打开出口阀31,而入口阀21关闭。现在存在图4所示的状态直到到达下止点UT,从而液体可以通过出口30离开膜片式泵模块10。
如果在图7中,交换对入口阀21的操控A21与对出口阀31的操控A31,那么泵可以在回送运行中运行。在根据图5的状态中,液体则在出口阀31打开和入口阀21关闭时流入膜片式泵模块10中,并且可以在根据图6的状态中,在出口阀31关闭和入口阀21打开时通过入口20又离开膜片式泵模块。
对上止点OT的、对于执行输送运行和回送运行来说需要的确定在泵的不同的实施例中通过使用不同的传感器实现。
在图8所示的第一实施例中,膜片式泵模块10具有膜片工作空间11,入口20和出口30通入膜片工作空间中。膜片工作空间通过膜片12限界,膜片与往复式活塞13连接并且借助往复式活塞运动。往复式活塞13具有衔铁14,衔铁在升降磁体(Hubmagnet)16内经由环形的线圈15通过产生磁场来运动。在衔铁的静止位置中,衔铁14利用往复式活塞13通过螺旋弹簧17的应力预紧。第一实施例设置的是,在膜片工作空间11内布置有麦克风41。此外,在那里布置有止挡部42,止挡部被定位为当往复式活塞13到达其上止点OT时,膜片12撞击到止挡部上。噪音由麦克风41探测,并且因此识别上止点OT。
在图9所示的第二实施例中,在膜片工作空间11中布置有形式为光探测器的传感器43。此外,在那里布置了光源44,其照射膜片12。光探测器43可以从光源44的由膜片12反射的光识别往复式活塞13到达上止点OT。
在第三实施例中,在膜片工作空间11中布置有霍尔效应传感器45。该霍尔效应传感器连续测量其与膜片12的间距。当该间距到达最小值时,识别上止点的到达。
在泵的第四实施例中,膜片式泵模块10同样具有霍尔效应传感器。该霍尔效应传感器46然而没有布置在膜片工作空间11中。相反地,该霍尔效应传感器被定位为,使其可以识别在膜片式泵模块10的磁场中的不均匀性。升降磁体16实施成当往复式活塞13到达其上止点OT时,出现不均匀性。以该方式,可以从霍尔效应传感器46的信号推断出上止点。
在泵的第五实施例中,泵具有TMR传感器47。此外,另外的磁体48布置成使其位置通过往复式活塞13的运动改变。在此得到转动角度,其可以借助TMR传感器47探测。该布置如下地设计,即可以借助TMR传感器从转动角度推断出到达上止点OT。

Claims (17)

1.泵,具有膜片式泵模块(10),所述膜片式泵模块具有至少一个传感器(41、44、45、46、47),所述传感器设置用于:探测所述膜片式泵模块(10)的上止点(OT)和/或下止点(UT)的到达。
2.根据权利要求1所述的泵,其特征在于,所述传感器(41)是麦克风,所述麦克风设置用于探测撞击噪音,当膜片撞击到止挡部(42)上时,所述撞击噪音由所述膜片式泵模块(10)的膜片(12)导致。
3.根据权利要求1所述的泵,其特征在于,所述传感器(43)是照相机或光探测器,所述照相机或所述光探测器设置用于:探测所述膜片式泵模块(10)的膜片(12)的位置。
4.根据权利要求1所述的泵,其特征在于,所述传感器(45)是霍尔效应传感器,所述霍尔效应传感器设置用于:测量与所述膜片式泵模块(10)的膜片(12)的间距。
5.根据权利要求1所述的泵,其特征在于,所述传感器(46)是霍尔效应传感器,所述霍尔效应传感器设置用于:在所述膜片式泵模块(10)中测量磁场中的不均匀性。
6.根据权利要求1所述的泵,其特征在于,所述传感器(47)是TMR传感器,所述TMR传感器设置用于:探测布置在所述膜片式泵模块(10)中的磁体(48)的转动角度。
7.根据权利要求1至6中任一项所述的泵,其特征在于,所述泵具有入口(20)和出口(30),其中在所述入口(20)中布置有入口阀(21),并且在所述出口(30)中布置有出口阀(31),并且每个阀(21、31)具有:封闭元件(22、32),所述封闭元件设置用于在关闭位置中封闭所述入口(20)或所述出口(30);复位元件(23、33),所述复位元件设置用于借助复位力将所述封闭元件(22、32)按压到所述关闭位置中;以及促动器(24、34),所述促动器设置用于将所述封闭元件(22、32)从所述关闭位置中运动出来。
8.用于确定根据权利要求1至7中任一项所述的泵的膜片式泵模块(10)的上止点(OT)和/或下止点(UT)的方法,在其中借助传感器(41、44、45、46、47)来探测所述上止点(OT)。
9.根据权利要求8所述的方法,其特征在于,所述泵是根据权利要求2所述的泵,并且当麦克风探测到撞击噪音时,识别所述上止点。
10.根据权利要求8所述的方法,其特征在于,所述泵是根据权利要求3所述的泵,并且当照相机或光探测器探测到膜片到达其上方位置时,识别所述上止点。
11.根据权利要求8所述的方法,其特征在于,所述泵是根据权利要求4所述的泵,并且当探测到霍尔效应传感器与膜片之间的间距具有其最小值时,识别所述上止点。
12.根据权利要求8所述的方法,其特征在于,所述泵是根据权利要求5所述的泵,并且当霍尔效应传感器探测到出现不均匀性时,识别所述上止点。
13. 根据权利要求8所述的方法,其特征在于,所述泵是根据权利要求6所述的泵,并且从磁体的转动角度来确定所述上止点。
14.用于运行根据权利要求7所述的泵的方法,其中
- 在输送运行中,当膜片式泵模块(10)从下止点(UT)朝上止点(OT)运动时,打开入口阀(21)并且关闭出口阀(31),当所述膜片式泵模块(10)从所述上止点(OT)朝所述下止点(UT)运动时,关闭所述入口阀(21)并且打开所述出口阀(31),
- 在回送运行中,当所述膜片式泵模块(10)从所述下止点(UT)朝所述上止点(OT)运动时,关闭所述入口阀(21)并且打开所述出口阀(31),当所述膜片式泵模块(10)从所述上止点(OT)朝所述下止点(UT)运动时,打开所述入口阀(21)并且关闭所述出口阀(31),并且
其中借助根据权利要求7至13中任一项所述的方法来确定所述上止点。
15.计算机程序,所述计算机程序设置用于:执行根据权利要求7至14中任一项所述的方法的每个步骤。
16.机器可读的存储介质,在所述存储介质上存储了根据权利要求15所述的计算机程序。
17.电子控制器,所述电子控制器设置用于:借助根据权利要求7至13中任一项所述的方法来确定泵的膜片式泵模块(10)的上止点(OT)和/或下止点(UT);和/或借助根据权利要求14所述的方法来运行泵。
CN201910712187.0A 2018-08-03 2019-08-02 泵和用于泵的运行以及用于确定上和/或下止点的方法 Pending CN110792581A (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018212985.1A DE102018212985A1 (de) 2018-08-03 2018-08-03 Pumpe und Verfahren zu ihrem Betrieb sowie zum Ermitteln eines oberen und/oder unteren Totpunkts
DE102018212985.1 2018-08-03

Publications (1)

Publication Number Publication Date
CN110792581A true CN110792581A (zh) 2020-02-14

Family

ID=69168114

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910712187.0A Pending CN110792581A (zh) 2018-08-03 2019-08-02 泵和用于泵的运行以及用于确定上和/或下止点的方法

Country Status (4)

Country Link
US (1) US20200040887A1 (zh)
CN (1) CN110792581A (zh)
DE (1) DE102018212985A1 (zh)
FR (1) FR3084703A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019212831A1 (de) * 2019-08-27 2021-03-04 Robert Bosch Gmbh Verfahren zum Betreiben einer Pumpe und SCR-Versorgungssystem mit einer solchen Pumpe
DE102019219636A1 (de) * 2019-12-14 2021-06-17 Robert Bosch Gmbh Verfahren zum Betreiben eines Fluid-Versorgungssystem und Fluid-Versorgungssystem
DE102019219633A1 (de) * 2019-12-14 2021-06-17 Robert Bosch Gmbh Verfahren zum Kalibrieren und Betreiben einer Pumpe
DE102020211030A1 (de) 2020-09-02 2022-03-03 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zum Betreiben einer Pumpe und Fluid-Versorgungssystem mit einer solchen Pumpe
DE102021110755A1 (de) 2021-04-27 2022-10-27 Prominent Gmbh Verfahren zur Aufnahme von Dosierprofilen
DE102021204407A1 (de) 2021-05-03 2022-11-03 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zum Betreiben einer Pumpe und Fluid-Versorgungssystem

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4315523A (en) * 1980-03-06 1982-02-16 American Flow Systems, Inc. Electronically controlled flow meter and flow control system
US5971723A (en) * 1995-07-13 1999-10-26 Knf Flodos Ag Dosing pump
US20040234377A1 (en) * 2001-12-20 2004-11-25 Erwin Bolt Dosing pump
CN101245770A (zh) * 2007-02-17 2008-08-20 卓越剂量技术有限公司 电动机驱动计量泵
CN102395790A (zh) * 2009-02-12 2012-03-28 伊利诺伊大学受托管理委员会 磁驱动微型泵
US8231355B2 (en) * 2003-09-02 2012-07-31 Fisher & Paykel Appliances Limtied Linear motor controller improvements
US20150047727A1 (en) * 2013-08-13 2015-02-19 Cummins Emission Solutions, Inc. Diaphragm pump system having re-priming capabilities

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4315523A (en) * 1980-03-06 1982-02-16 American Flow Systems, Inc. Electronically controlled flow meter and flow control system
US5971723A (en) * 1995-07-13 1999-10-26 Knf Flodos Ag Dosing pump
US20040234377A1 (en) * 2001-12-20 2004-11-25 Erwin Bolt Dosing pump
US8231355B2 (en) * 2003-09-02 2012-07-31 Fisher & Paykel Appliances Limtied Linear motor controller improvements
CN101245770A (zh) * 2007-02-17 2008-08-20 卓越剂量技术有限公司 电动机驱动计量泵
CN102395790A (zh) * 2009-02-12 2012-03-28 伊利诺伊大学受托管理委员会 磁驱动微型泵
US20150047727A1 (en) * 2013-08-13 2015-02-19 Cummins Emission Solutions, Inc. Diaphragm pump system having re-priming capabilities

Also Published As

Publication number Publication date
FR3084703A1 (fr) 2020-02-07
US20200040887A1 (en) 2020-02-06
DE102018212985A1 (de) 2020-02-06

Similar Documents

Publication Publication Date Title
CN110792581A (zh) 泵和用于泵的运行以及用于确定上和/或下止点的方法
CN102312706B (zh) 运行用于scr催化转换器的还原剂计量系统的方法
US8931258B2 (en) Method for metering a reducing agent, method for setting up a control unit for a metering device and motor vehicle having a metering device
US9599003B2 (en) Method for operating a metering device, metering device and motor vehicle
JP2005511969A (ja) 圧力センサ組入れ形膜ポンプ
CN104040154B (zh) 内燃机的控制装置
US9181834B2 (en) Method and device for adapting the injection agent supply in an injection system, and exhaust gas aftertreatment system
KR102089817B1 (ko) 차량용 배기 가스 후처리 시스템에서 유압 누출-방지성을 검사하기 위한 방법 및 장치
US8555618B2 (en) Method for detecting the minimum opening time of a reducing agent feed device in an exhaust gas aftertreatment system comprising an SCR catalyst
US6679200B2 (en) Direct in-cylinder reductant injection system and a method of implementing same
EP2878779A1 (en) Urea solution injection device
CN106481410B (zh) 用于运行试剂配量系统的方法、用于实施所述方法的装置、计算机程序和计算机程序产品
CN204357543U (zh) 氮氧化物信号多路复用系统
US20080319686A1 (en) Procedure for diagnosis of an emission treatment method and procedures to carry out same said method
CN112983601A (zh) 用于校准和运行泵的方法
KR102361893B1 (ko) 시약 계량 시스템을 진단하는 방법, 상기 방법을 수행하기 위한 장치, 컴퓨터 프로그램 및 컴퓨터 프로그램 제품
US9938876B2 (en) Abnormality diagnosis device for exhaust gas purification apparatus in internal combustion engine
CN105317575A (zh) 用于对尤其内燃机的燃料喷射系统中的多次喷射进行控制的方法
US10655555B2 (en) Engine system and method of controlling engine system
CN103573343B (zh) 用于运行输送和配量系统的方法
EP3333388A1 (en) Method and device for monitoring an scr injection system
CN108980020B (zh) 用于运行输送泵的方法和装置
CN108571441B (zh) 用于运行往复电磁泵的方法和计算机程序产品
US20110186153A1 (en) Metering system for a liquid medium, particularly a urea-water solution
CN117989113A (zh) 用于运行具有带泵室的泵的scr供应系统的方法

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20200214

WD01 Invention patent application deemed withdrawn after publication