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1.发明授权公开(公告)号：US09611823B2
公开(公告)日：2017-04-04
申请号：US13820762
申请日：2011-08-24
Applicant: Anselm Schwarte , Steffen Lehner , Manfred Kramel
Inventor： Anselm Schwarte , Steffen Lehner , Manfred Kramel
CPC classification number: F02M51/00 , F02D41/2096 , F02D2041/1409 , F02D2041/2031 , F02D2041/2055
Abstract: A method for controlling the injection quantity of a piezoinjector of a fuel injection system, which comprises a nozzle needle displaceable by a piezoactuator. Based on the instantaneous injection quantity, a selection is made among various control methods. In a ballistic injector mode, a first control method is carried out, wherein both a needle closing point in time is equalized and a needle travel time is also equalized. In a full stroke injector mode, a second control method is carried out, wherein a needle closing point in time is equalized, but the needle travel time is not equalized.
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2.发明申请Method For Detecting A Nozzle Chamber Pressure In An Injector And Injection System 审中-公开喷射器和注射系统中检测喷嘴室压力的方法
公开(公告)号：US20140034747A1
公开(公告)日：2014-02-06
申请号：US14111623
申请日：2012-03-19
Applicant: Hans-Jörg Wiehoff , Steffen Lehner , Vera Balk
Inventor： Hans-Jörg Wiehoff , Steffen Lehner , Vera Balk
CPC classification number: F02M57/005 , F02D41/008 , F02D41/009 , F02D41/2096 , F02D2041/2051 , F02D2200/0602 , F02M65/00 , F02M69/00 , F02M2200/24 , F02M2200/244 , F02M2200/247 , G01L9/08 , G01L9/12
Abstract: A method is disclosed for detecting a nozzle chamber pressure in an injector that includes a closure element for opening and closing an injection opening, at least one actuator which directly actuates the closure element, and at least one sensor for measuring a state, which is dependent on the nozzle chamber pressure, of the closure element, wherein at least one measurement variable which is dependent on the state is detected by means of the sensor, and wherein a deviation of the measurement value from a predefined value is determined. An injection system for carrying out such method is also disclosed.
Abstract translation: 公开了一种用于检测喷射器中的喷嘴室压力的方法，其包括用于打开和关闭喷射开口的闭合元件，至少一个直接致动闭合元件的致动器，以及用于测量状态的至少一个传感器， 在所述封闭元件的喷嘴室压力上，其中通过所述传感器检测取决于所述状态的至少一个测量变量，并且其中确定所述测量值与预定值的偏差。 还公开了一种用于执行这种方法的注射系统。
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公开(公告)号：US20130239929A1
公开(公告)日：2013-09-19
申请号：US13820778
申请日：2011-08-24
Applicant: Steffen Lehner , Robert Hoffmann , Hans-Jörg Wiehoff
Inventor： Steffen Lehner , Robert Hoffmann , Hans-Jörg Wiehoff
IPC: F02D41/30
CPC classification number: F02D41/3005 , F02D41/2096 , F02D2200/0602 , F02D2250/04 , F02M51/0603
Abstract: A method for actuating a piezoelectric actuator and a piezo injector of a fuel injection system having a nozzle needle which can be moved between the closed position and an open position by the piezoelectric actuator are disclosed. Current is applied to the piezoelectric actuator from a source for the duration of a charging time as a function of a required quantity of fuel, in order to move the nozzle needle into its opened position for a time period which is dependent on the required quantity of fuel. The charging time is selected according to the following relationships: tcharge(p)=tnom,charge (p) for TI>tEP,p and tcharge (p, TI)≦Ti for TI≦tEP,p.
Abstract translation: 公开了一种用于致动具有喷嘴针的燃料喷射系统的压电致动器和压电喷射器的方法，喷嘴针可以通过压电致动器在关闭位置和打开位置之间移动。 为了将喷嘴针移动到其打开位置一段时间内，电流作为所需燃料量的函数在充电时间期间从电源施加到压电致动器，该时间段取决于所需量的 汽油。 根据以下关系选择充电时间：对于TI @ tEP，p，p（t）= tnom，TI> tEP，p和tcharge（p，TI）@Ti的电荷（p）。
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4.发明申请Method for Controlling the Injection Quantity of a Piezoinjector of a Fuel Injection System 有权控制燃油喷射系统压电喷射器喷射量的方法
公开(公告)号：US20130233936A1
公开(公告)日：2013-09-12
申请号：US13820762
申请日：2011-08-24
Applicant: Anselm Schwarte , Steffen Lehner , Manfred Kramel
Inventor： Anselm Schwarte , Steffen Lehner , Manfred Kramel
IPC: F02M51/00
CPC classification number: F02M51/00 , F02D41/2096 , F02D2041/1409 , F02D2041/2031 , F02D2041/2055
Abstract: A method for controlling the injection quantity of a piezoinjector of a fuel injection system, which comprises a nozzle needle displaceable by a piezoactuator. Based on the instantaneous injection quantity, a selection is made among various control methods. In a ballistic injector mode, a first control method is carried out, wherein both a needle closing point in time is equalized and a needle travel time is also equalized. In a full stroke injector mode, a second control method is carried out, wherein a needle closing point in time is equalized, but the needle travel time is not equalized.
Abstract translation: 一种用于控制燃料喷射系统的压电喷射器的喷射量的方法，其包括可由压电致动器移动的喷嘴针。 基于瞬时喷射量，在各种控制方法中进行选择。 在弹道喷射器模式中，执行第一控制方法，其中针关闭时间点相等并且针行进时间也相等。 在全行程喷射器模式中，执行第二控制方法，其中针关闭时间点相等，但是行程时间不相等。
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5.发明授权Method for detecting faulty components of an electronically regulated fuel injection system of an internal combustion engine 有权一种用于检测内燃机的电子调节燃料喷射系统的故障部件的方法
公开(公告)号：US09127632B2
公开(公告)日：2015-09-08
申请号：US14004155
申请日：2012-02-29
Applicant: Robert Hoffmann , Steffen Lehner , Anselm Schwarte , Simon Ruscheinski
Inventor： Robert Hoffmann , Steffen Lehner , Anselm Schwarte , Simon Ruscheinski
CPC classification number: F02M65/00 , F02D41/2096 , F02D41/222 , F02D2041/2055 , F02M51/0603 , F02M65/001 , H02N2/065
Abstract: A method for detecting error-containing components of a piezo-injector in an internal combustion engine fuel-injection system is disclosed. The piezo-injector has a piezoelectric actuator and an injection needle driven thereby, and is configured for operation in a partial-stroke mode and a full-stroke mode. First, the internal combustion engine is brought to a defined operational point. Then, the time for the injector needle to strike its stop when said injector needle is opened, as well as the time for the injector needle to strike its needle seat again when said injector needle is closed, are measured. The measured times are compared to normal values determined at the test stand. Parameter(s) for the fuel-injection system are calculated, using different calculation models, and the results are stored. Finally, the calculated parameters of the different calculation models are compared to norm values determined at the test stand, and compared to one another.
Abstract translation: 公开了一种用于检测内燃机燃料喷射系统中的压电喷射器的含误差成分的方法。 压电喷射器具有压电致动器和由此驱动的注射针，并且被配置为在部分行程模式和全行程模式下操作。 首先，将内燃机带到规定的操作点。 然后，测量当所述注射针打开时注射器针头停止的时间，以及当所述注射针关闭时注射针再次击打其针座的时间。 将测量时间与在试验台确定的正常值进行比较。 使用不同的计算模型计算燃料喷射系统的参数，并存储结果。 最后，将不同计算模型的计算参数与在试验台确定的标准值进行比较，并进行比较。
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6.发明授权Method and device for determining the actual start of injection of a piezo fuel injection valve 有权用于确定压电燃料喷射阀的实际注射开始的方法和装置
公开(公告)号：US08973893B2
公开(公告)日：2015-03-10
申请号：US13699101
申请日：2011-05-04
Applicant: Steffen Lehner , Manfred Kramel , Hans-Jörg Wiehoff , Nicolas Nozeran , Peter Matthias Ruβe
Inventor： Steffen Lehner , Manfred Kramel , Hans-Jörg Wiehoff , Nicolas Nozeran , Peter Matthias Ruβe
CPC classification number: F16K31/02 , F02D41/008 , F02D41/2432 , F02D41/2438 , F02D41/247 , F02D41/403 , F02D2041/2051 , F02D2200/0618 , F02M51/0603 , F02M65/005 , F02M2200/701 , Y10T137/0318 , Y10T137/8158
Abstract: A method for determining the actual start of injection is performed by an actuating device for a piezo fuel injection valve and includes the following steps. First, a test injection is carried out with such a short actuation duration that a start of shut-off takes place at a time so early that the nozzle needle does not reach the open end position. Said time is predefined by the actuation and is therefore precisely known. Next, the closing time of the nozzle needle is then determined by measurement and evaluation of an electrical variable of the piezo direct drive. Once the closing time and the time of the start of shut-off are known, the actual start of injection is calculated back from the closing time via the start of shut-off. This permits an adequately precise determination of the actual injection quantity in almost every operating state of the internal combustion engine.
Abstract translation: 用于确定实际喷射开始的方法由压电燃料喷射阀的致动装置执行，并且包括以下步骤。 首先，以如此短的致动持续时间进行测试注射，使得在喷嘴针没有到达开口端位置的时候，开始切断。 所述时间由致动器预定义，因此是精确的。 接下来，然后通过测量和评估压电直接驱动的电气变量来确定喷嘴针的关闭时间。 一旦关闭时间和关闭开始的时间是已知的，则通过关闭开始从关闭时间计算出实际的喷射开始。 这允许在内燃机的几乎每个操作状态下对实际喷射量进行适当精确的确定。
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7.发明授权Method for determining a position of a lock element of an injection valve for an internal combustion engine 有权用于确定用于内燃机的喷射阀的锁定元件的位置的方法
公开(公告)号：US09470171B2
公开(公告)日：2016-10-18
申请号：US14117055
申请日：2012-03-19
Applicant: Peter Matthias Ruβe , Robert Hoffman , Steffen Lehner , Hans-Jörg Wiehoff
Inventor： Peter Matthias Ruβe , Robert Hoffman , Steffen Lehner , Hans-Jörg Wiehoff
CPC classification number: F02D41/3005 , F02D41/2096 , F02D41/40 , F02D2041/2055 , F02M51/0603 , F02M65/005 , F02M2200/245 , Y02T10/44
Abstract: A method for determining a position of a lock element of an injection valve for an internal combustion engine includes moving the lock element in the direction of a locked position in a closing movement in order to lock the injection valve, subsequently measuring a closure time at which the lock element arrives in the locked position, determining a time difference between the closure time and a preceding starting time of the closing movement, and determining, based on the time difference, a position which the lock element has assumed at the starting time of the closing movement.
Abstract translation: 一种用于确定用于内燃机的喷射阀的锁定元件的位置的方法包括在闭合运动中沿锁定位置的方向移动锁定元件以锁定喷射阀，随后测量关闭时间 锁定元件到达锁定位置，确定关闭时间与关闭移动的先前开始时间之间的时间差，并且基于时间差确定锁定元件在起始时间假定的位置 关闭运动。
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公开(公告)号：US09453473B2
公开(公告)日：2016-09-27
申请号：US13820778
申请日：2011-08-24
Applicant: Steffen Lehner , Robert Hoffmann , Hans-Jörg Wiehoff
Inventor： Steffen Lehner , Robert Hoffmann , Hans-Jörg Wiehoff
CPC classification number: F02D41/3005 , F02D41/2096 , F02D2200/0602 , F02D2250/04 , F02M51/0603
Abstract: A method for actuating a piezoelectric actuator and a piezo injector of a fuel injection system having a nozzle needle which can be moved between the closed position and an open position by the piezoelectric actuator are disclosed. Current is applied to the piezoelectric actuator from a source for the duration of a charging time as a function of a required quantity of fuel, in order to move the nozzle needle into its opened position for a time period which is dependent on the required quantity of fuel. The charging time is selected according to the following relationships: tcharge(p)=tnom,charge (p) for TI>tEP,p and tcharge (p, TI)≦Ti for TI≦tEP,p.
Abstract translation: 公开了一种用于致动具有喷嘴针的燃料喷射系统的压电致动器和压电喷射器的方法，喷嘴针可以通过压电致动器在关闭位置和打开位置之间移动。 为了将喷嘴针移动到其打开位置一段时间内，电流作为所需燃料量的函数在充电时间期间从电源施加到压电致动器，该时间段取决于所需量的 汽油。 根据以下关系选择充电时间：对于TI≤tEP，p，p（t）= tnom，TI> tEP，p和tcharge（p，TI）≤Ti的电荷（p）
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9.发明申请
公开(公告)号：US20140033811A1
公开(公告)日：2014-02-06
申请号：US14004155
申请日：2012-02-29
Applicant: Robert Hoffmann , Steffen Lehner , Anselm Schwarte , Simon Ruscheinski
Inventor： Robert Hoffmann , Steffen Lehner , Anselm Schwarte , Simon Ruscheinski
IPC: F02M65/00
CPC classification number: F02M65/00 , F02D41/2096 , F02D41/222 , F02D2041/2055 , F02M51/0603 , F02M65/001 , H02N2/065
Abstract: A method for detecting error-containing components of a piezo-injector in an internal combustion engine fuel-injection system is disclosed. The piezo-injector has a piezoelectric actuator and an injection needle driven thereby, and is configured for operation in a partial-stroke mode and a full-stroke mode. First, the internal combustion engine is brought to a defined operational point. Then, the time for the injector needle to strike its stop when said injector needle is opened, as well as the time for the injector needle to strike its needle seat again when said injector needle is closed, are measured. The measured times are compared to normal values determined at the test stand. Parameter(s) for the fuel-injection system are calculated, using different calculation models, and the results are stored. Finally, the calculated parameters of the different calculation models are compared to norm values determined at the test stand, and compared to one another.
Abstract translation: 公开了一种用于检测内燃机燃料喷射系统中的压电喷射器的含误差成分的方法。 压电喷射器具有压电致动器和由此驱动的注射针，并且被配置为在部分行程模式和全行程模式下操作。 首先，将内燃机带到规定的操作点。 然后，测量当所述注射针打开时注射器针头停止的时间，以及当所述注射针关闭时注射针再次击打其针座的时间。 将测量时间与在试验台确定的正常值进行比较。 使用不同的计算模型计算燃料喷射系统的参数，并存储结果。 最后，将不同计算模型的计算参数与在试验台确定的标准值进行比较，并进行比较。
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10.发明申请METHOD AND DEVICE FOR DETERMINING THE ACTUAL START OF INJECTION OF A PIEZO FUEL INJECTION VALVE 有权用于确定PIEZO燃油喷射阀注射实际开始的方法和装置
公开(公告)号：US20130133748A1
公开(公告)日：2013-05-30
申请号：US13699101
申请日：2011-05-04
Applicant: Steffen Lehner , Manfred Kramel , Hans-Jörg Wiehoff , Nicolas Nozeran , Peter Matthias Russe
Inventor： Steffen Lehner , Manfred Kramel , Hans-Jörg Wiehoff , Nicolas Nozeran , Peter Matthias Russe
IPC: F16K31/02
CPC classification number: F16K31/02 , F02D41/008 , F02D41/2432 , F02D41/2438 , F02D41/247 , F02D41/403 , F02D2041/2051 , F02D2200/0618 , F02M51/0603 , F02M65/005 , F02M2200/701 , Y10T137/0318 , Y10T137/8158
Abstract: A method for determining the actual start of injection is performed by an actuating device for a piezo fuel injection valve and includes the following steps. First, a test injection is carried out with such a short actuation duration that a start of shut-off takes place at a time so early that the nozzle needle does not reach the open end position. Said time is predefined by the actuation and is therefore precisely known. Next, the closing time of the nozzle needle is then determined by measurement and evaluation of an electrical variable of the piezo direct drive. Once the closing time and the time of the start of shut-off are known, the actual start of injection is calculated back from the closing time via the start of shut-off. This permits an adequately precise determination of the actual injection quantity in almost every operating state of the internal combustion engine.
Abstract translation: 用于确定实际喷射开始的方法由压电燃料喷射阀的致动装置执行，并且包括以下步骤。 首先，以如此短的致动持续时间进行测试注射，使得在喷嘴针没有到达开口端位置的时候，开始切断。 所述时间由致动器预定义，因此是精确的。 接下来，然后通过测量和评估压电直接驱动的电气变量来确定喷嘴针的关闭时间。 一旦关闭时间和关闭开始的时间是已知的，则通过关闭开始从关闭时间计算出实际的喷射开始。 这允许在内燃机的几乎每个操作状态下对实际喷射量进行适当精确的确定。
