EP2449240A1 - Verfahren zur regelung des raildrucks in einem common-rail einspritzsystem einer brennkraftmaschine - Google Patents
Verfahren zur regelung des raildrucks in einem common-rail einspritzsystem einer brennkraftmaschineInfo
- Publication number
- EP2449240A1 EP2449240A1 EP10725397A EP10725397A EP2449240A1 EP 2449240 A1 EP2449240 A1 EP 2449240A1 EP 10725397 A EP10725397 A EP 10725397A EP 10725397 A EP10725397 A EP 10725397A EP 2449240 A1 EP2449240 A1 EP 2449240A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- rail
- volume flow
- rail pressure
- pcr
- 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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000446 fuel Substances 0.000 claims abstract description 25
- 239000002828 fuel tank Substances 0.000 claims abstract description 12
- 238000002347 injection Methods 0.000 claims description 36
- 239000007924 injection Substances 0.000 claims description 36
- 230000001105 regulatory effect Effects 0.000 claims description 25
- 230000001276 controlling effect Effects 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 6
- 230000015654 memory Effects 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 4
- 230000006399 behavior Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 239000000872 buffer Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000001681 protective effect 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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
- F02D41/3845—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped
- F02D41/3854—Controlling the fuel pressure by controlling the flow into the common rail, e.g. the amount of fuel pumped with elements in the low pressure part, e.g. low pressure pump
-
- 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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/3809—Common rail control systems
- F02D41/3836—Controlling the fuel pressure
- F02D41/3863—Controlling the fuel pressure by controlling the flow out of the common rail, e.g. using pressure relief valves
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
- F02M63/023—Means for varying pressure in common rails
- F02M63/0235—Means for varying pressure in common rails by bleeding fuel pressure
- F02M63/025—Means for varying pressure in common rails by bleeding fuel pressure from the common rail
-
- 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
- F02D2041/141—Introducing closed-loop corrections characterised by the control or regulation method using a feed-forward control element
-
- 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
- F02D2041/1413—Controller structures or design
- F02D2041/1418—Several control loops, either as alternatives or simultaneous
-
- 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
- F02D2041/1413—Controller structures or design
- F02D2041/1432—Controller structures or design the system including a filter, e.g. a low pass or high pass filter
-
- 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
- F02D2041/2024—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit the control switching a load after time-on and time-off pulses
- F02D2041/2027—Control of the current by pulse width modulation or duty cycle control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D2250/00—Engine control related to specific problems or objectives
- F02D2250/31—Control of the fuel pressure
-
- 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
Definitions
- the invention relates to a method for controlling and regulating a
- a rail pressure control loop comprises a reference junction for determining a control deviation, a pressure regulator for calculating a control signal, the controlled system and a
- the controlled system comprises the pressure actuator, the rail and the injectors for injecting the fuel into the combustion chambers of the internal combustion engine.
- Controller parameters are calculated as a function of operating parameters, here: the engine speed and the desired injection quantity.
- the pressure regulator calculates the actuating signal for a pressure regulating valve, via which the fuel outflow from the rail into the fuel tank is determined.
- the pressure control valve is thus arranged on the high pressure side of the common rail system.
- an electric prefeed pump or a controllable high-pressure pump are shown in this reference.
- Pressure relief valve may be provided as a protective measure against excessive rail pressure. The fuel is then discharged from the rail into the fuel tank via the opened pressure relief valve. A corresponding common rail system is from the
- a common rail system has a control and a
- the control leakage is effective when the injector is electrically energized, that is, during the duration of the injection. As the injection duration decreases, so does the control leakage.
- the constant leakage is always effective, that is, even if the injector is not activated. This is also caused by the component tolerances. Since the constant leakage with rising
- Raildruck increases and decreases with falling rail pressure, the pressure oscillations are damped in the rail. In contrast, the tax leakage is reversed. If the rail pressure increases, the injection duration is shortened to represent a constant injection quantity, which results in a sinking control leakage. If the rail pressure drops, the injection duration is increased accordingly, which results in an increasing control leakage. The tax leakage thus leads to the pressure vibrations in the rail to be amplified.
- the control and constant leakage represent a loss volume flow, which is promoted and compressed by the high-pressure pump.
- Leakage volume flow means that the high-pressure pump must be designed to be larger than necessary.
- part of the drive energy of the high pressure pump is converted into heat, which in turn causes the heating of the fuel and an efficiency reduction of the internal combustion engine.
- the components are shed in practice.
- a reduction in the constant leakage has the disadvantage that the stability behavior of the common rail system deteriorates and the pressure control becomes more difficult.
- the injection quantity ie the extracted fuel volume
- the injection quantity is very low.
- the invention is based on the object to optimize the stability behavior and the settling time.
- the method consists in that in addition to the rail pressure control over the
- Low-pressure-side suction throttle as the first pressure actuator, a rail pressure disturbance for influencing the rail pressure via a high-pressure side pressure control valve is generated as a second pressure actuator. Fuel is removed from the rail into a fuel tank via the high-pressure-side pressure control valve.
- the invention thus consists in that a constant leakage is simulated via the control of the pressure regulating valve.
- the rail pressure disturbance variable is calculated as a function of the actual rail pressure and a setpoint volume flow of the pressure regulating valve via a pressure regulating valve characteristic map.
- the desired volume flow is calculated as a function of a desired injection quantity and an engine speed via a desired volume flow characteristic map.
- the desired volume flow characteristic map is designed in such a way that in a low load range a setpoint volume flow with a positive value, for example 2 liters / minute, and in a normal operating range a setpoint volume flow of zero is calculated.
- Low load range is to be understood in the context of the invention, the range of small injection quantities and thus small engine power.
- the fuel is diverted only in the low load range and in a small amount, there is no significant increase in the fuel temperature and also no significant reduction in the efficiency of the internal combustion engine.
- the increased stability of the high-pressure control circuit in the low load range can be recognized by the fact that the rail pressure remains approximately constant during overrun operation and at a load shedding the rail pressure peak value has a significantly reduced pressure level.
- the rail pressure disturbance is additionally determined by means of a subordinate current control circuit, alternatively by means of a subordinate current control circuit together with pilot control.
- FIG. 1 shows a system diagram
- FIG. 2 shows a rail pressure control loop
- FIG. 3 is a block diagram
- FIG. 4 shows a current control circuit
- FIG. 5 shows a current control loop with precontrol
- FIG. 6 shows a nominal volume flow characteristic diagram
- FIG. 7 is a timing diagram
- FIG. 8 is a program flowchart.
- FIG. 1 shows a system diagram of an electronically controlled
- the common rail system comprises the following mechanical components: a low-pressure pump 3 for
- the common rail system can also be designed with individual memories, in which case Example in the injector 7 a single memory 8 is integrated as an additional buffer volume.
- a passive pressure relief valve 11 is provided, which abgrest the fuel from the rail 6 in the open state.
- Pressure control valve 12 also connects the rail 6 to the fuel tank 2. About the position of the pressure control valve 12, a fuel flow is defined, which is derived from the rail 6 in the fuel tank 2. In the text below, this fuel volume flow is referred to as rail pressure disturbance variable VDRV.
- the operation of the internal combustion engine 1 is determined by an electronic control unit (ECU) 10.
- the electronic control unit 10 includes the usual Components of a microcomputer system, for example a microprocessor,
- I / O blocks I / O blocks, buffers and memory blocks (EEPROM, RAM).
- EEPROM electrically erasable programmable read-only memory
- the electronic control unit 10 from the input variables the output variables.
- the following input variables are shown by way of example in FIG. 1: the rail pressure pCR, which is measured by means of a rail pressure sensor 9, an engine speed nMOT, a signal FP for output specification by the operator and an input variable EIN.
- the other sensor signals are summarized, for example, the charge air pressure of an exhaust gas turbocharger.
- the individual storage pressure pE is an additional input of the electronic control unit 10.
- a signal PWMSD for controlling the suction throttle 4 as first pressure actuator a signal ve for controlling the injectors 7 (start of injection / injection end), a signal PWMDV for
- the output variable AUS is representative of the further actuating signals for controlling and regulating the internal combustion engine 1,
- FIG. 2 shows a rail pressure control loop 13 for regulating the rail pressure pCR.
- the input variables of the rail pressure control loop 13 are: a target rail pressure pCR (SL), a target consumption V2, the engine speed nMOT, the PWM fundamental frequency fPWM and a quantity E1.
- E1 for example, the battery voltage and the ohmic resistance of Saugdrosselspule are combined with supply, which are included in the calculation of the PWM signal.
- Rail pressure control loop 13 is the raw value of the rail pressure pCR.
- Output of the rail pressure control loop 13 corresponds to the actual rail pressure pCR (IST), which is further processed in a controller 14 ( Figure 3). From the raw value of the rail pressure pCR, the actual rail pressure pCR (IST) is calculated by means of a filter 20. This is then compared with the setpoint value pCR (SL) at a summation point A, resulting in a control deviation ep. From the control deviation ep calculates
- Pressure regulator 15 its manipulated variable, which a volume flow V1 with the physical Unit liters / minute corresponds.
- the calculated target consumption V2 is added at a summation point B.
- the target consumption V2 is calculated via a calculation 23, which is shown in FIG. 3 and explained in connection therewith.
- the result of the addition at the summation point B represents the volume flow V3, which is the input variable of a limit 16.
- the limit 16 is changed depending on the engine speed nMOT.
- the output variable of the limit 16 corresponds to a desired volume flow VSL. If the volume flow V3 is below the limit value of the limit 16, then the value of the desired volume flow VSL corresponds to the value of the volume flow V3.
- the nominal volume flow VSL is the input variable of a pump characteristic curve 17.
- the pump characteristic curve 17 is used to associate the setpoint volume flow VSL with a desired electric current iSL.
- the setpoint current iSL is then converted in a calculation 18 into a PWM signal PWMSD.
- the PWM signal PWMSD here represents the duty cycle and the frequency fPWM corresponds to the
- the suction throttle acted upon.
- the path of the magnetic core is changed, whereby the flow rate of the high-pressure pump is influenced freely.
- the suction throttle is normally open and is acted upon by the PWM control in the direction of the closed position.
- the calculation of the PWM signal 18 may include
- FIG. 3 shows a block diagram of the greatly simplified rail pressure control circuit 13 of FIG. 2 and the controller 14. Via the control 14, the rail pressure disturbance VDRV is generated.
- the inputs of the controller 14 are: the actual rail pressure pCR (IST), the engine speed nMOT and the target injection amount QSL.
- the desired injection quantity QSL is either calculated via a characteristic map as a function of a power requirement or corresponds to the manipulated variable of a speed controller.
- the physical unit of the target injection quantity is mm 3 / stroke.
- a desired torque MSL is used as the input variable instead of the desired injection quantity QSL.
- a first output variable is the rail pressure disturbance VDRV, ie the one
- Fuel flow which is controlled by the pressure control valve from the rail in the fuel tank.
- a second output variable is the nominal consumption V2, which is further processed in the rail pressure control loop 13.
- the actual rail pressure pCR (IST) is a maximum volume flow VMAX, unit: liter / minute, assigned.
- the characteristic curve 21 is an example of a rising straight line with the basic values A (O bar, 0 L / min) and B (2200 bar, 7.5 L / min).
- the maximum volume flow VMAX is one of the input variables of a limit 24.
- the desired consumption V2 is calculated via a calculation 23.
- a first desired volume flow VDVI (SL) for the pressure control valve is calculated via the desired volume flow characteristic map 22 (3D map).
- the desired volume flow characteristic map 22 is designed in such a way that in the low load range, for example at idle, a positive value of the first setpoint volume flow VDVI (SL) is calculated, while in the normal operating range a first setpoint volume flow VDVI (SL) of Zero is calculated.
- a possible embodiment of the desired volume flow characteristic map 22 is shown in FIG. 6 and will be explained in more detail in connection with this.
- the first nominal volume flow VDVI (SL) has the physical unit liters / minute.
- the first set volume flow VDVI (SL) is the second input variable for the limit 24.
- the limit 24 limits the first set volume flow VDVI (SL) to the value of the maximum volume flow VMAX.
- Output size corresponds to the nominal volume flow VDV (SL), which the
- the target volume flow VDV (SL) and the actual rail pressure pCR (IST) are the input variables of the pressure control valve characteristic map 25.
- the pressure control valve characteristic map 25 represents a map inversion, that is, the physical (stationary) behavior of the pressure control valve inverted with this map.
- the output variable of the pressure control valve characteristic map 25 is a desired current iDV (SL), which is then converted via the calculation 26 into a PWM signal PWMDV.
- the conversion can be subordinated to a current control, current control loop 27, or a current control with feedforward control.
- the current regulation is shown in FIG. 4 and will be explained in connection therewith.
- Feedforward control is shown in FIG. 5 and will be explained in connection therewith.
- PWMDV the pressure regulating valve 12 is activated.
- the electric current iDV which adjusts itself to the pressure regulating valve 12 is converted to current regulation via a filter 28 into an actual current iDV (IST) and to the calculation of the PWM signal 26 fed back.
- the output signal of the pressure regulating valve 12 corresponds to the rail pressure disturbance variable VDRV, that is to say the fuel volume flow which is diverted from the rail into the fuel tank.
- FIG. 4 shows a pure current regulation.
- the input variables are the setpoint current iDV (SL), the actual current iDV (IST), the battery voltage UBAT and controller parameters (kp, Tn).
- the output is the PWM signal PWMDV, with which the
- Pressure control valve is controlled. From the desired current iDV (SL) and the actual current iDV (IST), see FIG. 3, the current control deviation ei is first calculated. The current control deviation ei is the input value of the current controller 29.
- Current controller 29 may be implemented as a PI or PI (DTI) algorithm. in the
- the controller parameters are processed. These are characterized inter alia by the proportional coefficient kp and the reset time Tn.
- Output of the current controller 29 is a desired voltage UDV (SL) of the
- FIG. 5 shows a current control with combined pilot control.
- Input variables are the desired current iDV (SL), the actual current iDV (IST), the
- Controller parameters (kp, Tn), the ohmic resistance RDV of the pressure control valve and the battery voltage UBAT.
- the output variable is here also the PWM signal PWMDV, with which the pressure regulating valve is controlled.
- the result corresponds to a pilot control voltage UDV (VS).
- the current control deviation ei is calculated. From the current control deviation ei then calculated the current controller 29 as a manipulated variable, the setpoint voltage UDV (SL) of the current controller.
- the current regulator 29 can also be embodied here as either PI or PI (DTI) controller. Thereafter, the target voltage UDV (SL) and the pilot voltage UDV (VS) are added, divided by the battery voltage UBAT and multiplied by 100.
- FIG. 6 shows the desired volume flow characteristic map 22. This is used to determine the first nominal volume flow VDVI (SL) for the pressure regulating valve.
- the first set volume flow VDVI (SL) and the set volume flow VDV (SL) are identical, as long as the first desired volume flow VDV1 (SL) is less than the maximum
- volume flow VMAX is (Fig. 3: limit 24).
- the input variables are the engine speed nMOT and the target injection quantity QSL.
- engine speed values are plotted from 0 to 2000 rpm.
- the nominal injection quantity values from 0 to 270 mm 3 / stroke are plotted.
- the values within the characteristic map then correspond to the assigned first nominal volume flow VDVI (SL) in liters / minute.
- About the desired volume flow map 22 offed horrtulnde fuel flow is determined, so the rail pressure disturbance.
- the normal operating range is doubly framed in the figure.
- the simple framed area corresponds to the low load area. in the
- FIG. 7 shows as a time diagram a load shedding of 100% to 0% load in an internal combustion engine which drives an emergency power generator (60 Hz generator).
- FIG. 7 consists of the partial diagrams 7A to 7E. These show in each case over time: the engine speed nMOT in FIG. 7A, the desired injection quantity QSL in FIG. 7B, the intake throttle flow iSD in FIG. 7C 1 the actual rail pressure pCR (IST) in FIG. 7D and the nominal volume flow VDV (SL) the pressure control valve in Figure 7E.
- the engine speed nMOT in FIG. 7A shows the desired injection quantity QSL in FIG. 7B
- the intake throttle flow iSD in FIG. 7C 1 the actual rail pressure pCR (IST) in FIG. 7D
- VDV nominal volume flow
- Target rail pressure here: 1800 bar.
- IST actual rail pressure
- Suction inductor current iSD decreases and settles at a lower level.
- QSL I 20 mm 3 / stroke, whereby an increasing first setpoint volume flow VDVI (SL) and an increasing setpoint volume flow VDV (SL) are calculated via the setpoint volume flow characteristic diagram (FIG. 6).
- Time t7 results in a positive rail pressure control deviation, causing the
- VDV (SL) I, 5 liters / minute is diverted, the suction throttle current reaches iSD in
- step S6 to S9 the embodiment of the current control loop with feedforward control is included.
- the target injection amount QSL the engine speed nMOT, the actual rail pressure pCR (IST),
- the first target volume flow VDVI (SL) Dependency of the target injection amount QSL and the engine speed nMOT the first target volume flow VDVI (SL) calculated.
- a maximum volume flow VMAX (FIG. 3: 21) is calculated and the first setpoint volume flow VDVI (SL) is limited to the maximum volume flow VMAX, S4. Is the first target volume flow VDVI (SL) smaller than the maximum
- the desired volume flow VDV (SL) is set to the value of the first target volume flow VDV1 (SL). Otherwise, the setpoint volume flow VDV (SL) is set to the value of the maximum volume flow VMAX.
- the setpoint current iDV (SL) is calculated as a function of the setpoint volume flow VDV (SL) and the actual rail pressure pCR (IST).
- a pilot voltage UDV (VS) is calculated by multiplying the target current iDV (SL) by the ohmic resistance RDV of the pressure regulating valve and the supply line.
- a setpoint voltage UDV (SL) is calculated as a manipulated variable of the current controller as a function of the current control deviation ei.
- the target voltage UDV (SL) for the pressure regulating valve and the pilot control voltage UDV (VS) are added.
- the result is then divided by the battery voltage UBAT at S9 and multiplied by 100, which is the duty cycle of the PWM signal to drive the
- ECU electronice control unit
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009031528A DE102009031528B3 (de) | 2009-07-02 | 2009-07-02 | Verfahren zur Steuerung und Regelung einer Brennkraftmaschine |
PCT/EP2010/003654 WO2011000480A1 (de) | 2009-07-02 | 2010-06-17 | Verfahren zur regelung des raildrucks in einem common-rail einspritzsystem einer brennkraftmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2449240A1 true EP2449240A1 (de) | 2012-05-09 |
EP2449240B1 EP2449240B1 (de) | 2020-06-24 |
Family
ID=42735727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10725397.3A Active EP2449240B1 (de) | 2009-07-02 | 2010-06-17 | Verfahren zur regelung des raildrucks in einem common-rail einspritzsystem einer brennkraftmaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US9624867B2 (de) |
EP (1) | EP2449240B1 (de) |
CN (1) | CN102575610B (de) |
DE (1) | DE102009031528B3 (de) |
WO (1) | WO2011000480A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010039874B4 (de) * | 2010-08-27 | 2015-10-08 | Continental Automotive Gmbh | Verfahren und Vorrichtung zum Betreiben eines Kraftstoff-Hochdruckspeichereinspritzsystems für eine Brennkraftmaschine |
DE102014213648B3 (de) | 2014-07-14 | 2015-10-08 | Mtu Friedrichshafen Gmbh | Verfahren zum Betreiben einer Brennkraftmaschine, Einspritzsystem für eine Brennkraftmaschine sowie Brennkraftmaschine |
DE102015209377B4 (de) * | 2015-05-21 | 2017-05-11 | Mtu Friedrichshafen Gmbh | Einspritzsystem für eine Brennkraftmaschine sowie Brennkraftmaschine mit einem solchen Einspritzsystem |
DE102017214001B3 (de) | 2017-08-10 | 2019-02-07 | Mtu Friedrichshafen Gmbh | Verfahren zum Betreiben einer Brennkraftmaschine mit einem Einspritzsystem, Einspritzsystem, eingerichtet zur Durchführung eines solchen Verfahrens, und Brennkraftmaschine mit einem solchen Einspritzsystem |
US11092091B2 (en) * | 2018-03-19 | 2021-08-17 | Woodward, Inc. | Pressure regulating mass flow system for multipoint gaseous fuel injection |
DE102019202004A1 (de) | 2019-02-14 | 2020-08-20 | Mtu Friedrichshafen Gmbh | Verfahren zum Betreiben eines Einspritzsystems einer Brennkraftmaschine, Einspritzsystem für eine Brennkraftmaschine sowie Brennkraftmaschine mit einem solchen Einspritzsystem |
DE102019112754B4 (de) * | 2019-05-15 | 2021-06-24 | Man Energy Solutions Se | Verfahren und Steuerungseinrichtung zum Betreiben einer Common-Rail Kraftstoffversorgungsanlage |
CN113494403B (zh) * | 2021-08-11 | 2023-02-03 | 上海新动力汽车科技股份有限公司 | 油轨高压泵流量控制模型输出值修正方法 |
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- 2009-07-02 DE DE102009031528A patent/DE102009031528B3/de not_active Expired - Fee Related
-
2010
- 2010-06-17 EP EP10725397.3A patent/EP2449240B1/de active Active
- 2010-06-17 WO PCT/EP2010/003654 patent/WO2011000480A1/de active Application Filing
- 2010-06-17 US US13/381,878 patent/US9624867B2/en active Active
- 2010-06-17 CN CN201080031067.1A patent/CN102575610B/zh active Active
Non-Patent Citations (1)
Title |
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See references of WO2011000480A1 * |
Also Published As
Publication number | Publication date |
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CN102575610B (zh) | 2015-01-28 |
EP2449240B1 (de) | 2020-06-24 |
DE102009031528B3 (de) | 2010-11-11 |
WO2011000480A1 (de) | 2011-01-06 |
US9624867B2 (en) | 2017-04-18 |
US20120097131A1 (en) | 2012-04-26 |
CN102575610A (zh) | 2012-07-11 |
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