EP1430208A1 - Fuel injection device for internal combustion engine - Google Patents
Fuel injection device for internal combustion engineInfo
- Publication number
- EP1430208A1 EP1430208A1 EP02764515A EP02764515A EP1430208A1 EP 1430208 A1 EP1430208 A1 EP 1430208A1 EP 02764515 A EP02764515 A EP 02764515A EP 02764515 A EP02764515 A EP 02764515A EP 1430208 A1 EP1430208 A1 EP 1430208A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel injection
- control valve
- actuator
- voltage
- pressure
- 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
- 238000002347 injection Methods 0.000 title claims abstract description 90
- 239000007924 injection Substances 0.000 title claims abstract description 90
- 239000000446 fuel Substances 0.000 title claims abstract description 87
- 238000002485 combustion reaction Methods 0.000 title claims description 18
- 238000012937 correction Methods 0.000 claims description 11
- 238000012360 testing method Methods 0.000 claims description 9
- 230000002123 temporal effect Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 230000004913 activation Effects 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D41/2096—Output circuits, e.g. for controlling currents in command coils for controlling piezoelectric injectors
-
- 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
- F02M57/00—Fuel-injectors combined or associated with other devices
- F02M57/02—Injectors structurally combined with fuel-injection pumps
- F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
- F02M57/023—Injectors structurally combined with fuel-injection pumps characterised by the pump drive mechanical
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
- F02M59/366—Valves being actuated electrically
-
- 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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
- F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
- F02M59/468—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means using piezoelectric operating means
-
- 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
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/20—Output circuits, e.g. for controlling currents in command coils
- F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
- F02D2041/2055—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit with means for determining actual opening or closing time
Definitions
- the invention is based on one
- Fuel injection device for an internal combustion engine according to the preamble of claim 1.
- Such a fuel injection device is known from DE 198 35 494 AI.
- This fuel injection device has a fuel injection valve, with an injection valve member through which at least one
- the injection valve member is of the in a pressure chamber of the
- Fuel injector prevailing pressure in an opening direction against a closing force is generated by a pump piston of a high-pressure fuel pump, which is driven by a cam in a lifting movement.
- a control valve actuated by a piezoelectric actuator is provided, which is controlled by an electrical control device and through which a connection of the
- the control valve has a control valve member, on which the actuator acts via a hydraulic coupler to move it between an open position and a closed position.
- the control valve member When the control valve member is in its closed position, the pressure chamber is separated from the relief chamber and it can build up in this high pressure for fuel injection. The The time at which the control valve member reaches the closed position is therefore of great importance for the control of the fuel injection.
- the coupler since the control valve member is separated from the actuator by the coupler, there is no information about this point in time.
- the coupler must also be completely filled.
- the fuel injection device with the features according to claim 1 has the advantage that the function of the control valve can be monitored.
- a pressure builds up in the hydraulic coupler, which acts on the actuator even after the charging process has ended and, when the voltage supply is disconnected, acts on the actuator for the pressure conditions in the coupler and consequently also for converting the control voltage into the stroke of the
- the voltage between the electrical connections on the piezoelectric actuator can thus be used as a measurement parameter for the valve behavior without the need for an additional sensor.
- the measured voltage can be used in accordance with claim 2 to determine the time of reaching the closed position of the control valve member.
- the course of the voltage can be monitored for the occurrence of a minimum in the course of the curve as indicated in claim 3.
- the minimum occurring in the course of the voltage thus identifies the point in time at which the control valve member has reached its closed position.
- the time derivative of the terminal voltage can also be formed and monitored for a zero crossing, as indicated in claim 4.
- the zero crossing of the voltage signal derived in time also identifies the minimum in the time profile of the terminal voltage and thus the control valve member reaching the closed position.
- a correction value for a control parameter of the control device is derived from the determined point in time of reaching the closed position of the control valve member.
- a correction value can be provided for the control voltage of the actuator and / or for the control time and / or for the duration of the charging process.
- the voltage can also be used to detect the
- the test control provided in accordance with claim 8 enables a check of the function of the control valve before a fuel injection, wherein correction values can be determined which can be used in the subsequent fuel injection.
- the time interval between the determination of the correction value and the activation of the control valve Fuel injection is therefore very low, so that fuel injection can take place with high accuracy.
- Fuel injection device for an internal combustion engine in a schematic representation and Figure 2 a
- Fuel injection valve of the fuel injection device in an enlarged view.
- Fuel injection device for an internal combustion engine for example, a motor vehicle shown.
- the fuel injection device has a high-pressure fuel pump 10 and a fuel injection valve 12 connected to it.
- the high-pressure fuel pump 10 and the fuel injection valve 12 are connected directly to one another and form a so-called pump-nozzle unit.
- the high-pressure fuel pump 10 is removed from the
- Fuel injection valve 12 is arranged and connected to it via a line. There is a fuel injector with high pressure fuel pump 10 and for each cylinder of the internal combustion engine
- Fuel injection valve 12 is provided.
- the high-pressure fuel pump 10 has a pump body 14, in which a pump piston 18 is slidably guided in a cylinder bore 16 and delimits a pump working space 20 in the cylinder bore 16.
- the pump piston 18 is driven by a camshaft of the internal combustion engine via a cam 22 against a return spring 24 in a lifting movement.
- a rocker arm 26 can be arranged between the cam 22 and the pump piston 18 as a transmission element.
- the cam 22 has a raised area 22a, via which the pump piston 18 is pressed against the force of the return spring 24 into the cylinder bore 16 up to an inner dead center, and a flatter area 22b, via which the pump piston 18 is released by the return spring 24 Cylinder bore 16 is pushed out to an outer dead center.
- the pump piston 18 When the pump piston 18 moves into the cylinder bore 16, it executes a delivery stroke in which fuel is compressed in the pump working space 20. During the stroke movement of the pump piston 18 out of the cylinder bore 16, the latter carries out a suction stroke in which fuel is sucked into the pump working chamber 20.
- the fuel injection valve 12 has a valve body 30, which can be constructed in several parts and in which an injection valve member 34 is guided in a bore 32.
- the valve body 30 has at least one, preferably a plurality of injection openings 36 at its end region facing the combustion chamber of the cylinder of the internal combustion engine, which are arranged distributed over the circumference of the valve body 30.
- the injection valve member 34 has, for example, an approximately conical sealing surface 38 on its end region facing the combustion chamber, which cooperates with a valve seat 40 formed in the valve body 30 in its end region facing the combustion chamber, from or after which the injection openings 36 lead away.
- annular space 42 is formed between the injection valve member 34 and the bore 32 toward the valve seat 40, which in its end region facing away from the valve seat 40 by radial expansion of the bore 32 into a pressure space 44 surrounding the injection valve member 34 transforms.
- the injection valve member 34 has a pressure shoulder 46 at the level of the pressure chamber 44 due to a change in cross-section, via which the pressure prevailing in the pressure chamber 44 generates a force on the injection valve member 34 away from the valve seat 40.
- a prestressed closing spring 48 engages, by means of which the injection valve member 34 is pressed toward the valve seat 40.
- the closing spring 48 is arranged in a spring chamber 50 of a spring holder 30a which forms part of the valve body 30 and which adjoins the bore 32.
- the pressure chamber 44 of the fuel injection valve 12 is connected via a channel 52 to the pump working chamber 20 of the high-pressure fuel pump 10. If the pressure prevailing in the pressure chamber 44 via the pressure shoulder 46 on the injection valve member 34 generates a greater force than the force generated by the closing spring 48, the injection valve member 34 lifts in the opening direction 35 with its sealing surface 38 from the valve seat 40 and gives the injection openings 36 free, through which fuel is injected into the combustion chamber.
- the injection valve member 34 moves against its opening direction 35 with its sealing surface 38 toward the valve seat 40 and closes when it contacts the system at the valve seat 40, the injection openings 36 so that no fuel is injected into the combustion chamber.
- an electrically controlled control valve 54 is provided, by means of which a connection between the pump work chamber 20 and a relief chamber is controlled.
- the fuel reservoir 11 can serve as a relief space Motor vehicle or another area in which there is a low pressure.
- the control valve 54 has a control valve member 56 which is actuated by a piezoelectric actuator 58 via a hydraulic coupler 57.
- the actuator 58 is controlled by an electronic one
- Control device 53 is supplied with an electrical voltage.
- the actuator 58 has a number of piezo elements 59 connected in series.
- the control valve 54 is arranged, for example, on the pump body 14.
- the actuator 58 is on the one hand with a
- Housing wall 60 through which electrical connections 61 of the actuator 58 are passed, and on the other hand non-positively connected to an actuating piston 62.
- the actuating piston 62 closes off the hydraulic coupler 57 with its end face 63 facing away from the actuator 58.
- the hydraulic coupler 57 in turn acts on an actuating piston 65 guided in a connecting channel 64, on the end of which is remote from the coupler 57, the control valve member 56 is arranged. It can be provided that the control valve member 56 cooperates with two valve seats which are formed in a valve chamber 66 in which the control valve member 56 is arranged.
- control valve member 56 In a first end position, which corresponds to a de-energized rest position of the actuator 58, the control valve member 56 bears against a first valve seat 68 in the valve chamber 66. In a second end position, which corresponds to a maximum activation of the actuator 58 and is a closed position of the control valve member 56, the control valve member 56 bears against a second valve seat 70 in the valve chamber 66 and closes it. It can also be provided that the control valve 54 is designed as a double-switching valve, wherein the control valve member 56 is closed when it is in contact with one of the two valve seats 68, 70 and is only open in an intermediate position between the two valve seats 68, 70 is.
- a connection 71 to the relief chamber opens into the valve chamber 66 between the two valve seats 68, 70. Via the second valve seat 70, the valve chamber 66 has a connection to the pump work chamber 20.
- the control valve member 56 When the control valve member 56 is in its first end position in contact with the first valve seat 68, the connection of the valve chamber 66 to the pump work chamber 20 is opened via the second valve seat 70, so that the pump work chamber 20 is connected to the relief chamber and there is no high pressure in it can build up.
- a throttle point 67 can be provided in the connection 71 of the valve chamber 66 to the relief chamber.
- control valve member 56 When the control valve member 56 is in its second end position and thus its closed position in contact with the second valve seat 70, the connection of the valve chamber 66 to the pump work chamber 20 is closed via the second valve seat 70, so that the pump work chamber 20 is separated from the relief chamber and is in This high pressure can build up, corresponding to the delivery stroke of the pump piston 18.
- the time of reaching the closed position of the control valve member 56 thus determines the start of fuel injection and the duration of the arrangement of the control valve member 56 in its closed position determines the amount of fuel that is injected.
- the actuator 58 of the control valve 54 is controlled by the control device 53 as a function of operating parameters of the internal combustion engine, such as, for example, speed, load, temperature and others.
- operating parameters of the internal combustion engine such as, for example, speed, load, temperature and others.
- feedback about the start of the fuel injection is required, which is at least approximately at the same time as the time at which the control valve member 56 reaches the closed position.
- a voltage measuring device 72 connected to the connections 61 of the actuator 58 for a predeterminable period of time of a measuring window, which voltage measuring device 72 can be part of the control device 53.
- A can be connected to the voltage measuring device 72
- Diagnostic device 74 may be connected.
- the measurement data can be transmitted directly to the diagnostic device 74, for example as an analog voltage signal.
- the voltage between the terminals 61 of the actuator 58 is thus monitored as a function of time.
- the time derivative of the voltage between the connections 61 can first be provided.
- the voltage signals are fed to a differentiating element 76 assigned to the voltage measuring device 72.
- the differentiated signals formed there are then transmitted to the diagnostic device 74.
- the time course of the voltage between the connections 61 of the actuator 58 in the diagnostic device 74 is used to conclude that the control valve member 56 has reached the closed position.
- the time profile of the voltage between the connections 61 of the actuator 58 is dependent on the occurrence of a
- Minimum curve occurring voltage thus identifies the point in time at which the control valve member 56 has reached its closed position. Based on the detection of the point in time at which the control valve 54 closes, correction values for control parameters of the
- Control device 53 can be obtained, which can be used for a subsequent fuel injection and through which the accuracy of the fuel injection with respect to the time of the fuel injection and the fuel injection quantity can be improved.
- Fuel injection with open control valve 54 is influenced or influenced only as little as possible.
- Correction parameters can be obtained during the test activation of the control valve 54, which can already be used in the control of the subsequent fuel injection.
- part of the medium in the hydraulic coupler 57 which is preferably fuel, is pressed out via leakage gaps.
- the coupler 57 must be properly filled. Therefore, between two Injections provided a refill of the coupler 57 via a channel, not shown.
- the voltage between the connections 61 of the actuator 58 can in turn be used to check whether the coupler 57 has actually been properly refilled. After the actuator 58 has been charged again, the voltage curve 72 monitors the time profile of the voltage between the connections 61 of the actuator 58.
- the drop in the voltage also depends on the so-called transmission ratio in the coupler 57, i.e. the ratio of the cross-sectional area of the actuating piston 62 to the cross-sectional area of the actuating piston 65 and also on the ratio of the stroke of the control valve member 56 that can be generated to the change in length of the actuator 58 acting on the coupler 57.
- the reduction in voltage also depends to a particularly pronounced extent on the degree of filling in the coupler 57. When the coupler 57 is full, a comparatively pronounced voltage drop of, for example, approximately 50 V can be detected. In contrast, this effect is significantly less when the coupler 57 is only partially filled, the voltage drop being, for example, only about 15 V.
- the difference in voltage determined is greater than the limit value, a diagnosis is made that the coupler 57 is completely and correctly refilled and no further measure is initiated. However, if the determined difference in voltage is less than the limit value, the diagnosis is based on an incomplete and defective refilling of the coupler 57. In this case, a further comparison of the difference in voltages with a second limit value or minimum value is made. This comparison makes a distinction according to the effects of the error.
- an essential fault is diagnosed, which, for example, results in the immediate shutdown of the internal combustion engine. If, on the other hand, the difference between the voltages is below the first but above the second limit value, a slight fault is diagnosed, which, although it permits further operation of the internal combustion engine, is stored in the data storage module 78 for later diagnostic purposes.
- a setpoint for the control voltage of the actuator 58 is also specified, the setpoint being selected such that, despite the incomplete filling of the coupler 57, after actuation, the intended stroke of the control valve member 56 results.
- the monitoring of the voltage between the connections 61 of the actuator 58 explained above is preferably carried out during a test activation of the control valve 54 in a phase during which no fuel injection takes place.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10146747A DE10146747A1 (en) | 2001-09-22 | 2001-09-22 | Fuel injection device for an internal combustion engine |
DE10146747 | 2001-09-22 | ||
PCT/DE2002/002574 WO2003027468A1 (en) | 2001-09-22 | 2002-07-13 | Fuel injection device for internal combustion engine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1430208A1 true EP1430208A1 (en) | 2004-06-23 |
EP1430208B1 EP1430208B1 (en) | 2005-01-26 |
Family
ID=7699911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02764515A Expired - Lifetime EP1430208B1 (en) | 2001-09-22 | 2002-07-13 | Fuel injection device for internal combustion engine |
Country Status (8)
Country | Link |
---|---|
US (1) | US6807950B2 (en) |
EP (1) | EP1430208B1 (en) |
JP (1) | JP4116552B2 (en) |
AT (1) | ATE288031T1 (en) |
DE (2) | DE10146747A1 (en) |
HU (1) | HUP0301402A2 (en) |
PL (1) | PL360659A1 (en) |
WO (1) | WO2003027468A1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10113802B4 (en) | 2001-03-21 | 2007-10-18 | Siemens Ag | Device for driving a piezoelectric actuator |
DE50305852D1 (en) * | 2002-04-04 | 2007-01-11 | Siemens Ag | EINSPRITZVENTIL |
DE10223553B4 (en) | 2002-05-27 | 2004-08-05 | Siemens Ag | Method for controlling an actuator and associated control device |
DE10225911B3 (en) * | 2002-06-11 | 2004-02-12 | Siemens Ag | Method and device for measuring and regulating the closing and opening times of a piezo control valve |
US6997159B2 (en) * | 2003-02-21 | 2006-02-14 | Caterpillar Inc. | Electrically controlled fluid system with ability to operate at low energy conditions |
DE10340137A1 (en) * | 2003-09-01 | 2005-04-07 | Robert Bosch Gmbh | Method for determining the drive voltage of a piezoelectric actuator of an injection valve |
DE10345226B4 (en) * | 2003-09-29 | 2006-04-06 | Volkswagen Mechatronic Gmbh & Co. Kg | Method and device for controlling a valve and method and device for controlling a pump-nozzle device with a valve |
DE102004020937B4 (en) * | 2004-04-28 | 2010-07-15 | Continental Automotive Gmbh | Method for determining a closing time of a closing element and circuit arrangement |
DE102004044153A1 (en) * | 2004-09-13 | 2006-03-30 | Siemens Ag | Lifting device and injection valve |
JP4817383B2 (en) * | 2006-11-24 | 2011-11-16 | Udトラックス株式会社 | Inspection device for automobile fuel injection system |
DE102006058742A1 (en) * | 2006-12-12 | 2008-06-19 | Robert Bosch Gmbh | Method for operating a fuel injection valve |
JP2008202593A (en) * | 2007-01-25 | 2008-09-04 | Denso Corp | Fuel injection control device |
WO2012121927A2 (en) * | 2011-03-10 | 2012-09-13 | Halliburton Energy Services, Inc. | Hydraulic pump with solid-state actuator |
DE102011082455B4 (en) * | 2011-09-09 | 2014-02-13 | Continental Automotive Gmbh | Method for monitoring an injection quantity of a fluid and injection system for injecting an injection quantity of a fluid |
WO2019102882A1 (en) * | 2017-11-24 | 2019-05-31 | 株式会社フジキン | Control method, fluid control device, and semiconductor manufacturing method, each using valve device and control device therefor |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4176822A (en) * | 1977-10-31 | 1979-12-04 | Chrysler Corporation | Fuel injection system and control valve for multi-cylinder engines |
US4643155A (en) * | 1984-10-05 | 1987-02-17 | Olin Corporation | Variable stroke, electronically controlled fuel injection control system |
JPS62206238A (en) * | 1986-03-05 | 1987-09-10 | Nippon Denso Co Ltd | Pilot injection device for fuel injection pump |
JP2568603B2 (en) * | 1988-01-11 | 1997-01-08 | 日産自動車株式会社 | Fuel injection device |
DE3838599A1 (en) * | 1988-11-15 | 1990-05-17 | Bosch Gmbh Robert | SOLENOID VALVE, ESPECIALLY FOR FUEL INJECTION PUMPS |
EP0644323B1 (en) * | 1993-09-17 | 1997-12-10 | Siemens Aktiengesellschaft | Device for detecting an operation condition of an injection pump |
DE19835494C2 (en) * | 1998-08-06 | 2000-06-21 | Bosch Gmbh Robert | Pump-nozzle unit |
DE19930309C2 (en) * | 1999-07-01 | 2001-12-06 | Siemens Ag | Method and device for regulating the injection quantity in a fuel injection valve with a piezo element actuator |
US6253736B1 (en) * | 1999-08-10 | 2001-07-03 | Cummins Engine Company, Inc. | Fuel injector nozzle assembly with feedback control |
GB9923823D0 (en) * | 1999-10-09 | 1999-12-08 | Lucas Industries Ltd | Fuel injector |
DE10038995A1 (en) * | 1999-10-16 | 2001-04-19 | Bosch Gmbh Robert | Fuel metering control method for i.c. engine has setting element for fuel feed valve controlled to provide intermediate valve position under given operating conditions |
JP4048699B2 (en) * | 1999-11-10 | 2008-02-20 | 株式会社デンソー | Fuel injection valve |
-
2001
- 2001-09-22 DE DE10146747A patent/DE10146747A1/en not_active Withdrawn
-
2002
- 2002-07-13 DE DE50202146T patent/DE50202146D1/en not_active Expired - Fee Related
- 2002-07-13 EP EP02764515A patent/EP1430208B1/en not_active Expired - Lifetime
- 2002-07-13 AT AT02764515T patent/ATE288031T1/en not_active IP Right Cessation
- 2002-07-13 HU HU0301402A patent/HUP0301402A2/en unknown
- 2002-07-13 US US10/432,374 patent/US6807950B2/en not_active Expired - Fee Related
- 2002-07-13 JP JP2003531005A patent/JP4116552B2/en not_active Expired - Fee Related
- 2002-07-13 PL PL36065902A patent/PL360659A1/en unknown
- 2002-07-13 WO PCT/DE2002/002574 patent/WO2003027468A1/en active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO03027468A1 * |
Also Published As
Publication number | Publication date |
---|---|
US6807950B2 (en) | 2004-10-26 |
DE10146747A1 (en) | 2003-04-10 |
JP2005504211A (en) | 2005-02-10 |
WO2003027468A1 (en) | 2003-04-03 |
US20040065301A1 (en) | 2004-04-08 |
HUP0301402A2 (en) | 2007-11-28 |
ATE288031T1 (en) | 2005-02-15 |
JP4116552B2 (en) | 2008-07-09 |
DE50202146D1 (en) | 2005-03-03 |
PL360659A1 (en) | 2004-09-20 |
EP1430208B1 (en) | 2005-01-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1268999B1 (en) | Method for determining the rail pressure of an injection valve having an piezoelectric actuator | |
DE10032022B4 (en) | Method for determining the drive voltage for an injection valve with a piezoelectric actuator | |
DE10024662B4 (en) | Method for operating an injection valve | |
EP1488088B1 (en) | Method and device for detecting the moment of impact of the valve needle of a piezo control valve | |
EP1430208A1 (en) | Fuel injection device for internal combustion engine | |
EP1836386B1 (en) | Method and device for controlling an injector | |
EP1147306A1 (en) | Fuel injection valve and method for operating a fuel injection valve | |
EP2478200A1 (en) | Method and apparatus for determining a movement of an injection valve needle | |
EP1704316B1 (en) | Method and device for controlling a valve and method and device for controlling a pump-nozzle device with a valve | |
EP1519026B1 (en) | Method and device for controlling a valve and method and device for controlling pump-nozzle unit with a valve | |
DE19956256A1 (en) | Idle stroke setting between an actuator and a transmission element of a valve in a fuel injector | |
EP1167729B1 (en) | Piezoelectric actuator for injector | |
WO2004090314A1 (en) | Method for determining the individual control voltage of a piezoelectric element | |
EP1472454B1 (en) | Method and device for detecting operating states of a pump-nozzle unit | |
EP1483498A1 (en) | Fuel injection device for an internal combustion engine | |
DE10225911B3 (en) | Method and device for measuring and regulating the closing and opening times of a piezo control valve | |
DE102015217776A1 (en) | A method of detecting damage to a nozzle needle of a fuel injector or the nozzle needle seat | |
WO2003091559A1 (en) | Device and method for triggering the piezo actuator of a control valve of a pump-nozzle unit | |
DE10310120B4 (en) | Method for determining the load applied to a piezoactuator, and method and device for controlling a piezoactuator of a control valve of a pump-nozzle unit | |
WO2016177498A1 (en) | Monitoring method and monitoring device for monitoring a filling operation of an injector arrangement with a fuel and filling method for filling an injector arrangement | |
DE10228353A1 (en) | Piezo sensor system for detecting the needle lift of an injection nozzle of a common rail injector | |
EP1865195B1 (en) | Device for injecting fuel | |
EP1805489A1 (en) | Measuring device for determining the delivered quantity of fuel in an injection valve | |
WO2006018334A1 (en) | Fuel injection device for a cylinder of an internal combustion engine | |
EP1394397A2 (en) | Method, control and/or regulation device for operation of an internal combustion engine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20040422 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050126 Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050126 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050126 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050126 Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050126 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050126 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050126 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050126 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
REF | Corresponds to: |
Ref document number: 50202146 Country of ref document: DE Date of ref document: 20050303 Kind code of ref document: P |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050426 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050426 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050426 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050507 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20050713 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050713 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050713 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050731 Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050731 |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20050718 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
ET | Fr: translation filed | ||
26N | No opposition filed |
Effective date: 20051027 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060731 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20060731 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
BERE | Be: lapsed |
Owner name: ROBERT BOSCH G.M.B.H. Effective date: 20050731 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20050626 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20080718 Year of fee payment: 7 Ref country code: IT Payment date: 20080726 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20080723 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20080925 Year of fee payment: 7 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20090713 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20100331 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090731 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090713 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100202 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090713 |