WO2005059337A1 - Verfahren und vorrichtung zum steuern eines ventils und verfahren und vorrichtung zum steuern einer pumpe-düse-vorrichtung mit dem ventil - Google Patents
Verfahren und vorrichtung zum steuern eines ventils und verfahren und vorrichtung zum steuern einer pumpe-düse-vorrichtung mit dem ventil Download PDFInfo
- Publication number
- WO2005059337A1 WO2005059337A1 PCT/EP2004/014271 EP2004014271W WO2005059337A1 WO 2005059337 A1 WO2005059337 A1 WO 2005059337A1 EP 2004014271 W EP2004014271 W EP 2004014271W WO 2005059337 A1 WO2005059337 A1 WO 2005059337A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- valve
- value
- difference
- valve seat
- piezo actuator
- 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.)
- Ceased
Links
Classifications
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- 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
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- 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
- F02D41/02—Circuit arrangements for generating control signals
- F02D41/14—Introducing closed-loop corrections
- F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
- F02D2041/1409—Introducing closed-loop corrections characterised by the control or regulation method using at least a proportional, integral or derivative controller
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2200/00—Input parameters for engine control
- F02D2200/02—Input parameters for engine control the parameters being related to the engine
- F02D2200/06—Fuel or fuel supply system parameters
- F02D2200/0606—Fuel temperature
Definitions
- the invention relates to a method and a device for controlling a valve. It also relates to a method and a device for controlling a pump-nozzle device with a valve.
- the valve has a valve drive, which is designed as a piezo actuator, a valve member, a valve body and a valve seat.
- a pump-nozzle device is used in particular for supplying fuel to a combustion chamber of a cylinder of an internal combustion engine, in particular a diesel internal combustion engine.
- a pump, a control unit with the valve and a nozzle unit form a structural unit.
- a piston of the pump is preferably driven via a camshaft of an internal combustion engine by means of a rocker arm.
- the pump can be hydraulically coupled to a low-pressure fuel supply device via the valve. It is hydraulically coupled on the outlet side to the nozzle unit. Start of injection and injection quantity are determined by the valve and its valve drive.
- the compact design of the pump-nozzle device results in a very low high-pressure volume and great hydraulic rigidity. This enables very high injection pressures of around 2,000 bar. This high injection pressure in conjunction with the good controllability of the start of injection and the injection quantity enable a significant reduction in emissions while at the same time low fuel consumption when using the internal combustion engines. From DE 198 35 494 C2 a pump-nozzle device is known with a pump and a valve with a valve member, which controls the hydraulic coupling of a control chamber with an outlet channel.
- the drain channel is hydraulically coupled to the pump and a nozzle unit.
- An inlet channel is provided, which is hydraulically coupled to the control chamber.
- a piezoelectric valve drive is assigned to the valve member, via which the valve member can be adjusted between two end positions. In a first end position of the valve member, the drain channel is hydraulically coupled to a control chamber and this, in turn, to the feed channel. In a second end position of the valve member, the drain channel is hydraulically decoupled from the control chamber and the valve member is in a valve seat of the valve.
- valve member In the first end position of the valve member, fluid is sucked in by the pump from the inlet channel via the control chamber and the outlet channel during a delivery stroke of the pump.
- a working stroke of a pump piston of the pump in the first end position of the valve member, fluid is pressed back by the pump via the outlet channel, the control chamber into the inlet channel.
- no fluid can be pressed back during the delivery stroke of the pump piston due to the lack of hydraulic coupling of the outlet channel to the control chamber and the inlet channel, and the pump piston generates high pressure.
- a nozzle needle of the nozzle unit opens a nozzle of the nozzle unit and the fluid is injected.
- the end of injection is determined by the fact that the valve member is controlled into its first end position by means of the actuator and thus fluid can flow back via the outlet channel into the control chamber and the inlet channel, with the result that the pressure in the pump and thus also in the nozzle unit decreases, which in turn leads to the nozzle unit being closed.
- Low pollutant emissions from an internal combustion engine in which the pump-nozzle device is arranged and precise control of the internal combustion engine require precise metering of fuel by the pump-nozzle device. This in turn requires long-term stable and reproducible control of the piezo-controlled valve of the pump-nozzle device.
- WO 03/081007 AI a method and a device for detecting the point of impact of a valve needle of a piezo control valve is known.
- the piezo control valve is used in a pump-nozzle unit for injecting fuel into an internal combustion engine.
- the point of impact of the valve needle of the piezo control valve of the pump-nozzle unit is determined by evaluating the piezo voltage and / or the piezo current.
- a method and a device for measuring and regulating the closing and opening time of a piezo control valve in which the length of time is measured that a valve needle of a control valve of a piezo pump nozzle unit needs to be from a first End position in a second end position, taking into account the response time of the control valve.
- the time period is determined as a function of the voltage and / or the current applied to the control valve.
- an actuating signal is generated which is used to move the control valve from the first to the second end position, the actuating signal being generated at a point in time at which it is ensured that the pressure in the control valve and in the injection nozzle largely corresponds to the pressure during the measurement of the fuel low pressure range.
- DE 196 52 801 C1 discloses a method and a device for controlling at least one capacitive actuator, the capacitive actuator being used in particular in a piezoelectrically operated fuel injection valve of an internal combustion engine.
- the capacitive actuator When the capacitive actuator is activated, the actuator energy and / or the amount of charge of the capacitive actuator with which the actuator is actuated is regulated.
- the respective setpoint specifications are selected depending on various operating parameters of the internal combustion engine.
- the object of the invention is to provide a method and a device for controlling a valve which ensures that the valve switches precisely over a long period of operation. Furthermore, it is the object of the invention to create a method and a device for controlling a pump-nozzle device with the valve, which ensures that the valve switches precisely over a long period of operation.
- the invention is characterized by a method and a corresponding device for controlling a valve with a valve drive, which is designed as a piezo actuator, with a valve member, a valve body and a valve seat, at which the valve member is removed from a position at a first predeterminable time the valve seat is controlled in the valve seat by means of a charging process of the piezo actuator, in which a first value is determined which is characteristic of the electrical energy supplied to the piezo actuator when the valve member hits the valve seat, in which a second value is determined, which is characteristic of the electrical energy supplied to the piezo actuator when the charging process of the piezo actuator is completed.
- a difference actual value is determined from the difference between the second and the first value.
- a difference between a setpoint difference, which can be predetermined, and the actual difference value is fed to a controller and an actuating signal for loading the piezo actuator is determined as a function of the manipulated variable of the controller.
- the invention is characterized by a method and a corresponding device for controlling a pump-nozzle device with a pump which has a piston and a working space, a control unit which has an outlet channel which is hydraulically coupled to the working space, and the valve and comprises a control chamber which is hydraulically decoupled from the drain channel when the valve member bears against the valve seat and which is otherwise hydraulically coupled to the drain channel.
- the valve is controlled by the method or device for controlling the valve.
- the invention is characterized in that the valve seat force with which the valve member is pressed into the valve seat by the valve drive when it is in contact with the valve seat can be set very precisely and also very reproducibly.
- the valve seat force is decisive for the tightness of the valve when the valve member is in contact with the valve seat.
- the mechanical stress on the valve member and also on the valve seat can thus be reduced in a targeted manner over a long operating period of the valve and at the same time it can be ensured that the valve seat force remains constant over this long operating period. It tolerances in the closing and opening process of the valve can be easily minimized.
- the start of delivery and in particular the end of delivery of the fuel can be set very precisely over a long operating period.
- the invention is based on the knowledge that the first value depends crucially on a force which is brought about by the pressure of the fluid which acts on the valve member and a force of a restoring means which is present regularly, and that the second value depends crucially on a valve seat force and in addition, the force caused by the pressure of the fluid acting on the valve member and the force of the restoring means. Furthermore, the invention is based on the knowledge that the difference actual value depends crucially on the valve seat force, that is to say the force which is exerted by the valve member on the valve seat of the valve body. By means of the methods or devices according to the invention, a value which is characteristic of the valve seat force and which is the actual difference value can thus be determined precisely.
- the sealing force can be set very precisely in the long term.
- the piezo actuator is simply used as a sensor at the same time.
- the actuating signal for charging the piezo actuator is determined as a function of a pilot control value. This enables the valve to be controlled even more precisely and quickly, since the controller only has to compensate for deviations from the pilot control value.
- the setpoint difference is determined as a function of a fuel temperature and / or a speed and / or the predefinable first point in time. As a result, the sealing force can be precisely adjusted even under different operating conditions of the valve.
- the pilot control value is determined as a function of a fuel temperature and / or a rotational speed and / or the predefinable first point in time.
- the controller has a proportional and an integral component. This has the advantage that the sealing force can be set extremely precisely in a stationary manner.
- the actual difference value is low-pass filtered before the difference is formed with the desired difference value. This suppresses individual measurement errors and thus the control becomes more precise.
- the first value is an actual value of the supplied electrical energy when the valve member strikes the valve seat
- the second value is an actual value of the supplied electrical energy when the charging process is completed
- the difference actual value is an actual value of the electrical differential energy that is supplied to the piezo actuator
- Difference setpoint is a setpoint of the differential electrical energy.
- the first value is an actual value of the piezo voltage when the valve member strikes the valve seat
- the second value is an actual value of the piezo voltage when the charging process is completed
- the actual difference value is an actual value of the differential voltage and the difference Setpoint a setpoint of the differential voltage.
- the first predeterminable point in time is selected such that the piston is in its top dead center and remains until the valve member is expected to hit the valve seat, and that the manipulated variable determined in this way is used to determine of the actuating signal is used when the valve member is controlled from a position away from the valve seat into the valve seat by means of a charging process of the piezo actuator in a second predeterminable time, the second predeterminable time also being able to be selected such that the piston has left its top dead center until the expected impact of the valve member on the valve seat.
- FIG. 1 shows a pump nozzle device with a valve and a device for controlling the pump nozzle device and the valve
- FIG. 2 shows a block diagram for determining an actuating signal SG in the device for controlling the valve
- Figure 3 shows another block diagram for determining the control signal SG
- FIGS 4a to 4d temporal profiles of the piezo voltage V_AV, the stroke CTRL_VL of the valve member 231, the pressure P_H in the working space 13 of the pump and the injection quantity MFF.
- the pump-nozzle device (FIG. 1) comprises a pump unit, a control unit and a nozzle unit.
- the pump nozzle device is preferably used to supply fuel into the combustion chamber of a cylinder of an internal combustion engine.
- the internal combustion engine is preferably designed as a diesel internal combustion engine.
- the internal combustion engine has an intake tract for the intake of air, which can be coupled to cylinders by means of gas inlet valves.
- the internal combustion engine also has an exhaust gas tract which, controlled by the exhaust valve, removes the gases to be expelled from the cylinders.
- Pistons are assigned to the cylinders are each coupled to a crankshaft via a connecting rod.
- the crankshaft is coupled to a camshaft.
- the pump unit comprises a piston 11, a pump body 12, a working space 13 and a pump return means 14, which is preferably designed as a spring.
- the piston 11 When installed in an internal combustion engine, the piston 11 is coupled to a camshaft 16, preferably by means of a rocker arm, and is driven by the latter.
- the piston 11 is guided in a recess of the pump body 12 and, depending on its position, determines the volume of the working space 13.
- the pump return means 14 is designed and arranged such that the volume of the working space 13 delimited by the piston 11 has a maximum value if no external forces act on the piston 11, d. H. Forces that are transmitted via the coupling to the camshaft 16.
- the nozzle unit comprises a nozzle body 51, in which a nozzle return means 52, which is designed as a spring and possibly also as a damping unit, and a nozzle needle 53 are arranged.
- the nozzle needle 53 is arranged in a recess in the nozzle body 51 and is guided in the region of a needle guide 55.
- the nozzle needle 53 bears against a needle seat 54 and thus closes a nozzle 56 which is provided for supplying the fuel into the combustion chamber of the cylinder of the internal combustion engine.
- the nozzle unit is preferably designed as an inwardly opening nozzle unit.
- the nozzle needle 53 is arranged at a slight distance from the needle seat 54, specifically in the direction of the nozzle return means 52, and thus releases the nozzle 56.
- fuel is metered into the combustion chamber of the cylinder of the internal combustion engine.
- the first or second state is assumed as a function of a balance of forces from the force which acts on the nozzle needle 53 through the nozzle restoring means 52 and from the force counteracting this, which is caused by the hydraulic pressure in the area of the needle shoulder 57.
- the control unit comprises an inlet channel 21 and an outlet channel 22.
- the inlet channel 21 and the outlet channel 22 can be hydraulically coupled by means of a valve.
- the drain channel 21 leads from a low-pressure side connection of the pump nozzle device to the valve.
- the valve comprises a valve member 231, which is preferably designed as a so-called A valve, i. H. it opens outwards against the direction of flow of the fluid.
- the valve further comprises a control chamber 232, which is hydraulically coupled to the inlet channel 21 and can be hydraulically coupled to a high-pressure chamber by means of the valve member 231.
- the high-pressure chamber is hydraulically coupled to the drain channel 22.
- valve return means is provided, which is arranged and designed such that it presses the valve member 231 into an open position, ie at a distance from the valve seat 234, when the forces acting on the valve member by an actuator 24 are less than the forces caused by the Pressure of the fluid, here the fuel, are caused and act on the valve member 231 by the valve return means.
- the actuator 24 is designed as a piezo stack.
- the actuator 24 is preferably coupled to the valve member 231 by means of a transformer, which preferably increases the stroke of the actuator 24.
- a connector for receiving electrical contacts for actuating the actuator 24 is preferably also provided on the actuator 24.
- a device 60 for controlling the pump-nozzle device is provided, which generates an actuating signal SG for the valve.
- valve member 231 when the valve member 231 is controlled into its closed position during the downward movement of the piston 11, the fuel in the working chamber 13 and thus also in the outlet channel 22 and the fuel in the high-pressure chamber is compressed, as a result of which the pressure increases with increasing downward movement of the piston 11 in the working chamber 13, in the high-pressure chamber and in the drain channel 22 increases.
- the force caused by the hydraulic pressure also increases, which acts on the needle shoulder 57 in the direction of an opening movement of the nozzle needle 53 to release the nozzle 56.
- the nozzle needle 53 moves away from the needle seat 54 and gives this clears the nozzle 56 for supplying fuel to the cylinder of the internal combustion engine.
- the nozzle needle 53 then moves back into the needle seat 54 and thus closes the nozzle 56 when the hydraulic pressure in the outlet channel 22 falls below the value at which the force caused by the hydraulic pressure at the needle shoulder 57 is smaller than that caused by the nozzle return means 52 Force.
- the point in time at which this value falls below and at which the fuel metering is ended can be influenced by controlling the valve member 231 from its closed position to an open position.
- the hydraulic coupling between the high pressure chamber and the control chamber 232 and the inlet channel 21 is established. Due to the high pressure difference between the fluid in the high-pressure chamber and the drain channel 22 and the fluid in the control chamber 232 and the inlet channel 21, the fuel then flows from the high-pressure chamber into the control chamber 232 at a very high speed, usually at the speed of sound and further into the inlet channel 21. As a result, the pressure in the high-pressure chamber and the outlet channel 22 is then rapidly reduced to such an extent that the forces acting on the nozzle needle 53 from the nozzle restoring means 52 cause the nozzle needle 53 to move into the needle seat 54 and thus the nozzle 56 then closes.
- the valve member 231 is moved from its position away from the valve seat 234 into the valve seat.
- the predeterminable first point in time tl is preferably selected so that the piston 11 is in its top dead center is and remains until the expected impact of the valve member 231 on the valve seat 234. As a result, the time of impact can be detected particularly precisely.
- the predeterminable first point in time t1 can also be selected such that the piston 11 has left its top dead center until the expected impact of the valve member 231 on the valve seat 234.
- a pre-control value EGY_PRE of the electrical energy to be supplied is determined in a block B1 as a function of a fuel temperature T_FU and / or a rotational speed N and the predeterminable time t1.
- the pilot control value EGY_PRE of the electrical energy to be supplied is determined, for example, by means of a map, the map values of which were determined beforehand by tests.
- a setpoint EGY_D_SP of an electrical differential energy is determined in block B1.
- the target value EGY_D_SP of the differential electrical energy is characteristic of the valve seat force which is exerted by the valve member 231 on the valve seat 234 of the valve body 237 when the valve member 231 is in contact with the valve seat 234.
- the setpoint EGY_D_SP of the differential electrical energy is determined in the block B1 as a function of the fuel temperature T_FU, the speed N and / or the predeterminable first time t1. This can also be done, for example, by means of a corresponding map.
- the electrical energy supplied to the piezo actuator during the charging process is supplied as a function of actual values EGY_AV.
- the time t2 of the impact of the valve member 231 is determined in block B2. This can be done, for example, by evaluating actual values V_AV the piezo voltage or corresponding variables characterizing them, such as the actual current through the piezo actuator or the charge or electrical energy supplied to the piezo actuator.
- an actual value EGY_DET of the supplied electrical energy when the valve member 231 hits the valve seat 234 is then determined in the block B2 on the basis of the determined time t2 of the valve member 231 hitting the valve seat 234 and the actual value EGY_AV of the supplied energy associated with this point in time.
- the actual values EGY_AV of the electrical energy supplied are also read in and the actual value EGY_AV at the end of the charging process of the piezo actuator is assigned to an actual value EGY_CHA of the electrical energy supplied when the charging process is completed.
- the completion of the charging process can be recognized, for example, by the fact that the actual values EGY_AV of the electrical energy supplied reach a maximum or also by corresponding information from a further control function for the pump-nozzle device.
- a block B4 the difference between the actual value EGY_CHA of the supplied electrical energy when the charging process is complete and the actual value EGY_DET of the supplied electrical energy when the valve member 231 strikes the valve seat 234 is determined and sent to a block B5, which comprises a low-pass filter and provides an actual value EGY_D_AV of the differential electrical energy at its output.
- the difference between the setpoint EGY_D_SP and the actual value EGY_D_AV of the differential electrical energy is formed in a block B6.
- the actual value EGY_D_AV of the differential electrical energy can also be determined directly without the low-pass filter of block B5.
- the output of block B6 is connected on the input side to a block B7, which comprises a controller, which is preferably designed as a PI controller.
- the manipulated variable of the controller which in this exemplary embodiment is a control value EGY_FBC of the electrical energy to be supplied, is then fed to a block B7, in which a desired electrical energy EGY_THRUST to be supplied to the piezo actuator is determined by summation from the control value EGY_FBC and the pre-control value EGY_PRE of the electrical energy to be supplied becomes.
- the value EGY_THRUST of the desired electrical energy to be supplied is fed to a block B8, in which a corresponding actuating signal SG for driving the valve drive 24 designed as a piezo actuator is generated.
- the control signal SG is preferably a pulse-width modulated signal and the desired electrical energy EGY_THRUST is preferably divided into a predetermined number of partial energy quantities, which are each supplied to the piezo actuator in one period of the pulse width-modulated signal.
- Block B8 also preferably comprises a further subordinate controller in which the actual supply of electrical energy to the piezo actuator is regulated, the manipulated variable being the respective pulse width of the actuating signal SG. For example, each of these can be used as a control variable current charge or the actual values V_AV of the piezo voltage or the actual values EGY_AV of the electrical energy supplied.
- control signal SG for a charging process is to be determined after a second predeterminable point in time, which can also be selected such that the piston 11 has left its top dead center until the expected impact of the valve member 231 on the valve seat 234, the control value is preferred EGY_FBC of the electrical energy to be supplied is taken over by a charging process which took place in advance following the first predeterminable time t1. Only the pre-control value EGY_PRE of the electrical energy to be supplied is then recalculated.
- the valve seat force then also for the predeterminable second one Time is set extremely precisely.
- the pre-control value EGY_PRE for the second predefinable point in time is also determined depending on the second point in time.
- FIG. 3 shows an alternative embodiment of the block diagram according to FIG. 1. Only the differences are explained below.
- a piezo voltage V_DET is determined when the valve member 231 strikes the valve seat 234 by appropriately assigning an actual value V_D_AV to the piezo voltage.
- a piezo voltage V_CHA is determined when the charging process is complete, depending on actual values V_AV of the piezo voltage.
- the difference between the piezo voltage V_CHA at the end of the charging process and the piezo voltage V_DET when the valve member 231 strikes the valve seat 234 is then formed in a block B4 'and fed to the block B5', which, like the block B5, comprises a low-pass filter and that provides an actual value V_DAV of the differential voltage at its output.
- the difference between the setpoint V_D_SP and the actual value V_D_AV of the differential voltage is formed in a block B6 'and fed to a controller which is formed in block B7' and corresponds to that of block B7.
- other variables that are characteristic of the electrical energy to be supplied to the piezo actuator such as e.g. the electrical charge to be supplied to the piezo actuator.
- FIG. 4a to 4d show curves plotted over time t.
- FIG. 4a shows the time profile of the squared piezo voltage V_INJ.
- Figure 4b shows the stroke CTRL_VL of the valve member 231.
- Figure 4c shows the course of the pressure P_H in the working space 13 of the pump.
- FIG. 4d shows the time course of the quantity of fuel MFF metered in with the pump-nozzle device.
- tl is the predeterminable first point in time, however, it can also be the second predefinable point in time.
- t2 is the time when the valve member 231 strikes the valve seat 234 and t3 is the time when the charging ends.
- control value EGY_FBC of the electrical energy to be supplied is preferably determined during a period of time during which the piston 11 is at its top dead center.
- the course of the pressure P_H in the working space of the pump remains at the level of the time t1 over the entire period shown, and likewise in this case no fuel is delivered tightly.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Fluid-Driven Valves (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04803891A EP1704316B1 (de) | 2003-12-18 | 2004-12-15 | Verfahren und vorrichtung zum steuern eines ventils und verfahren und vorrichtung zum steuern einer pumpe-d se-vorrichtung mi t dem ventil |
| DE502004006965T DE502004006965D1 (de) | 2003-12-18 | 2004-12-15 | Verfahren und vorrichtung zum steuern eines ventilpumpe-d se-vorrichtung mi t dem ventil |
| US11/453,723 US7275522B2 (en) | 2003-12-18 | 2006-06-15 | Method and apparatus for controlling a valve, and method and apparatus for controlling a pump-nozzle apparatus with the valve |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10359675.5 | 2003-12-18 | ||
| DE10359675A DE10359675B3 (de) | 2003-12-18 | 2003-12-18 | Verfahren und Vorrichtung zum Steuern eines Ventils und Verfahren und Vorrichtung zum Steuern einer Pumpe-Düse-Vorrichtung mit dem Ventil |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US11/453,723 Continuation US7275522B2 (en) | 2003-12-18 | 2006-06-15 | Method and apparatus for controlling a valve, and method and apparatus for controlling a pump-nozzle apparatus with the valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005059337A1 true WO2005059337A1 (de) | 2005-06-30 |
Family
ID=34638728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2004/014271 Ceased WO2005059337A1 (de) | 2003-12-18 | 2004-12-15 | Verfahren und vorrichtung zum steuern eines ventils und verfahren und vorrichtung zum steuern einer pumpe-düse-vorrichtung mit dem ventil |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7275522B2 (de) |
| EP (1) | EP1704316B1 (de) |
| CN (1) | CN100529369C (de) |
| AT (1) | ATE393308T1 (de) |
| DE (2) | DE10359675B3 (de) |
| WO (1) | WO2005059337A1 (de) |
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| DE102004027291B4 (de) * | 2004-06-04 | 2009-11-26 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Steuern eines Ventils |
| DE102004058971B4 (de) * | 2004-12-08 | 2006-12-28 | Volkswagen Mechatronic Gmbh & Co. Kg | Verfahren zum Steuern eines piezoelektrischen Aktors und Steuereinheit zum Steuern eines piezoelektrischen Aktors |
| DE102004062073B4 (de) * | 2004-12-23 | 2015-08-13 | Continental Automotive Gmbh | Verfahren und Vorrichtung zur Kompensation von Prelleffekten in einem piezogesteuerten Einspritzsystem einer Verbrennungskraftmaschine |
| US8202267B2 (en) | 2006-10-10 | 2012-06-19 | Medsolve Technologies, Inc. | Method and apparatus for infusing liquid to a body |
| TW200903975A (en) * | 2007-07-09 | 2009-01-16 | Micro Base Technology Corp | Piezoelectric miniature pump and its driving circuit |
| US8708961B2 (en) | 2008-01-28 | 2014-04-29 | Medsolve Technologies, Inc. | Apparatus for infusing liquid to a body |
| US7980224B2 (en) * | 2008-02-05 | 2011-07-19 | Caterpillar Inc. | Two wire intensified common rail fuel system |
| DE102009001077A1 (de) | 2009-02-23 | 2010-08-26 | Robert Bosch Gmbh | Verfahren zum Betreiben einer Endstufe für mindestens einen Piezoaktor |
| GB2475224B (en) * | 2009-09-28 | 2016-03-16 | Gm Global Tech Operations Inc | Method for controlling a piezoelectric injector |
| DE102010040283B3 (de) * | 2010-09-06 | 2011-12-22 | Continental Automotive Gmbh | Verfahren zur Regelung der Einspritzmenge eines Piezoinjektors eines Kraftstoffeinspritzsystems |
| US9719474B2 (en) | 2013-01-02 | 2017-08-01 | Regents Of The University Of Minnesota | Direct fuel injectors with variable injection flow rate |
| EP2994672B1 (de) | 2013-05-07 | 2017-11-22 | Koninklijke Philips N.V. | Lineares digitales proportionales piezoelektrisches ventil |
| CN110032060B (zh) * | 2018-01-11 | 2022-05-17 | 西门子能源有限公司 | 过程控制方法、过程控制装置和存储介质 |
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| DE19652801C1 (de) | 1996-12-18 | 1998-04-23 | Siemens Ag | Verfahren und Vorrichtung zum Ansteuern wenigstens eines kapazitiven Stellgliedes |
| DE19723932C1 (de) * | 1997-06-06 | 1998-12-24 | Siemens Ag | Verfahren zum Ansteuern wenigstens eines kapazitiven Stellgliedes |
| DE19835494C2 (de) | 1998-08-06 | 2000-06-21 | Bosch Gmbh Robert | Pumpe-Düse-Einheit |
| US6491027B1 (en) * | 1999-09-23 | 2002-12-10 | Siemens Aktiengesellschaft | Method of driving a capacitive actuator of a fuel injection valve of an internal combustion engine |
| DE10148217C1 (de) * | 2001-09-28 | 2003-04-24 | Bosch Gmbh Robert | Verfahren, Computerprogramm und Steuer- und/oder Regelgerät zum Betreiben einer Brennkraftmaschine, sowie Brennkraftmaschine |
| WO2003081007A1 (de) | 2002-03-27 | 2003-10-02 | Siemens Aktiengesellschaft | Verfahren und vorrichtung zur detektion des einschlagzeitpunktes der ventilnadel eines piezo-steuerventils |
| WO2003091559A1 (de) * | 2002-04-23 | 2003-11-06 | Volkswagen Mechatronic Gmbh & Co. | Vorrichtung und verfahren zur ansteuerung des piezo-aktuators eines steuerventils einer pumpe-düse-einheit |
| US20030218437A1 (en) * | 2000-12-18 | 2003-11-27 | Wolfgang Bock | Actuator regulation device and corresponding method |
| WO2003104633A1 (de) | 2002-06-11 | 2003-12-18 | Siemens Aktiengesellschaft | Verfahren und vorrichtung zum messen und regeln der schliess- und öffnungszeit eines piezo-steuerventils |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3529577B2 (ja) * | 1997-02-14 | 2004-05-24 | 本田技研工業株式会社 | 燃料噴射弁制御装置 |
| CN1096552C (zh) * | 1997-09-17 | 2002-12-18 | 罗伯特·博施有限公司 | 控制内燃机中通过节气阀气体流的方法及装置 |
| DE60043181D1 (de) * | 2000-04-01 | 2009-12-03 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Regelung von Spannungen und Spannungsgradienten zum Antrieb eines piezoelektrischen Elements |
| DE10136186A1 (de) * | 2001-07-25 | 2003-02-06 | Bosch Gmbh Robert | Ventil zum Steuern von Flüssigkeiten |
| US6978770B2 (en) * | 2004-05-12 | 2005-12-27 | Cummins Inc. | Piezoelectric fuel injection system with rate shape control and method of controlling same |
-
2003
- 2003-12-18 DE DE10359675A patent/DE10359675B3/de not_active Expired - Fee Related
-
2004
- 2004-12-15 EP EP04803891A patent/EP1704316B1/de not_active Expired - Lifetime
- 2004-12-15 DE DE502004006965T patent/DE502004006965D1/de not_active Expired - Lifetime
- 2004-12-15 WO PCT/EP2004/014271 patent/WO2005059337A1/de not_active Ceased
- 2004-12-15 CN CNB2004800416187A patent/CN100529369C/zh not_active Expired - Fee Related
- 2004-12-15 AT AT04803891T patent/ATE393308T1/de not_active IP Right Cessation
-
2006
- 2006-06-15 US US11/453,723 patent/US7275522B2/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19652801C1 (de) | 1996-12-18 | 1998-04-23 | Siemens Ag | Verfahren und Vorrichtung zum Ansteuern wenigstens eines kapazitiven Stellgliedes |
| DE19723932C1 (de) * | 1997-06-06 | 1998-12-24 | Siemens Ag | Verfahren zum Ansteuern wenigstens eines kapazitiven Stellgliedes |
| DE19835494C2 (de) | 1998-08-06 | 2000-06-21 | Bosch Gmbh Robert | Pumpe-Düse-Einheit |
| US6491027B1 (en) * | 1999-09-23 | 2002-12-10 | Siemens Aktiengesellschaft | Method of driving a capacitive actuator of a fuel injection valve of an internal combustion engine |
| US20030218437A1 (en) * | 2000-12-18 | 2003-11-27 | Wolfgang Bock | Actuator regulation device and corresponding method |
| DE10148217C1 (de) * | 2001-09-28 | 2003-04-24 | Bosch Gmbh Robert | Verfahren, Computerprogramm und Steuer- und/oder Regelgerät zum Betreiben einer Brennkraftmaschine, sowie Brennkraftmaschine |
| WO2003081007A1 (de) | 2002-03-27 | 2003-10-02 | Siemens Aktiengesellschaft | Verfahren und vorrichtung zur detektion des einschlagzeitpunktes der ventilnadel eines piezo-steuerventils |
| WO2003091559A1 (de) * | 2002-04-23 | 2003-11-06 | Volkswagen Mechatronic Gmbh & Co. | Vorrichtung und verfahren zur ansteuerung des piezo-aktuators eines steuerventils einer pumpe-düse-einheit |
| WO2003104633A1 (de) | 2002-06-11 | 2003-12-18 | Siemens Aktiengesellschaft | Verfahren und vorrichtung zum messen und regeln der schliess- und öffnungszeit eines piezo-steuerventils |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10359675B3 (de) | 2005-07-07 |
| US20060289670A1 (en) | 2006-12-28 |
| EP1704316A1 (de) | 2006-09-27 |
| CN1938509A (zh) | 2007-03-28 |
| CN100529369C (zh) | 2009-08-19 |
| ATE393308T1 (de) | 2008-05-15 |
| EP1704316B1 (de) | 2008-04-23 |
| DE502004006965D1 (de) | 2008-06-05 |
| US7275522B2 (en) | 2007-10-02 |
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