CN105358817A - System and method for fuel injector on-time calculation using fuel system pressure prediction - Google Patents
System and method for fuel injector on-time calculation using fuel system pressure prediction Download PDFInfo
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- CN105358817A CN105358817A CN201480038368.5A CN201480038368A CN105358817A CN 105358817 A CN105358817 A CN 105358817A CN 201480038368 A CN201480038368 A CN 201480038368A CN 105358817 A CN105358817 A CN 105358817A
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- fuel
- subassembly
- module
- injector
- fuel injector
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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
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
- F02D41/402—Multiple injections
-
- 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
- F02D2041/1412—Introducing closed-loop corrections characterised by the control or regulation method using a predictive controller
-
- 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
-
- 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
- F02D2200/0602—Fuel pressure
-
- 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
- F02D2200/0602—Fuel pressure
- F02D2200/0604—Estimation of fuel pressure
-
- 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
- F02D2200/0618—Actual fuel injection timing or delay, e.g. determined from fuel pressure drop
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The disclosure provides a system and method to calculate an actual on-time of a fuel injector. The system may include one or more modules located in a control system. The control system uses information available before the fuel injection signal is transmitted to the fuel injector to model and predict a pressure profile in a fuel system that provides high-pressure fuel to the fuel injector, and uses that information along with a fueling command to calculate an actual on-time for the fuel injector.
Description
The intersection of related application is quoted
This application claims that the name submitted in July, 2013 is called " SYSTEMANDMETHODFORFUELINJECTORON-TIMECALCULATIONUSINGFUE LSYSTEMPRESSUREPREDICTION (for utilizing the System and method for of fuel system pressure prediction and calculation fuel injector operating time) ", U.S. Provisional Patent Application sequence number is 61/864, whole disclosures of this application are specially incorporated into this by quoting by the preference of 384.
Technical field
The disclosure relate to internal-combustion engine fuel injector and for utilizing the System and method for of fuel system pressure prediction and calculation actual ejection time (being referred to as the operating time).
Background technique
The amount of the fuel that fuel injector is ejected in firing chamber is the function at the interval (being referred to as the operating time) of fuel system supply or rail pressure, cylinder pressure or chamber pressure and fuel injector maintenance opening.Determine to expect that the classical pathway of the fuel injector operating time of fuel quantity and fuel system pressure utilizes to have as the fuel system of independent variable or parameter, fuel rail or the predetermined two-dimensional look-up table of the pressure of common rail and the fuel quantity of expectation and the fuel injector operating time as dependent variable given.
Classical pathway facing challenges is: the pressure distribution in fuel system can be demarcated relative to look-up table or reference change, thus changes the actual volume of the fuel sent, actual total amount or quantity.The factor that may change pressure distribution comprises pressure wave, engine speed in fuel system, fuel rail or common rail, is designed to input but not the initial injection (SOI) of the function of the fuel quantity of fuel system pressure and expectation and fuel system pressure set point change.
Summary of the invention
In a mode of execution of the present disclosure, at least one fuel injector that a kind of fuel subassembly of motor comprises fuel reservoir and connects with described fuel reservoir fluid.Described fuel injector configuration becomes allowing fuel from the open position that described fuel injector flows out and forbidding moving between the closed position that fuel flows out from described sparger.Described fuel subassembly comprises control system further, and this control system comprises the controller being operatively attached to described fuel injector.Described controller is configured at least one parameter receiving described fuel subassembly.In the operating process of described motor, described controller is configured to regulate described fuel injector to remain on amount of time in described open position in response to described parameter.
According to another mode of execution of the present disclosure, a kind of fuel subassembly of motor comprises: at least one fuel injector; And for the control system of described fuel subassembly.Described control system comprises: controller, and this controller is configured at least one parameter receiving described fuel subassembly; For determining the device of the time that fuel flows from described fuel injector; For predict described motor operating process described in the device of pressure distribution of fuel subassembly; And for carrying out in response to the described fuel distribution for the prediction of described fuel subassembly the time that fuel metering flows from described fuel injector in the operating process of described motor.
In another illustrative embodiments of the present disclosure, a kind of method operating the fuel subassembly of motor comprises: provide at least one fuel injector, and this fuel injector receives the parameter of described fuel subassembly in the operating process of described motor; And in the operating process of described motor, based on described fuel subassembly described parameter prediction described in the pressure distribution of fuel subassembly.Described method also comprises: the amount of time that computing fuel flows from described fuel injector in the operating process of described motor; And to the signal of the corresponding described amount of time flowed in fuel from described fuel injector of described fuel injector transmission in the operating process of described motor.
Check the detailed description according to following illustrative embodiments by reference to the accompanying drawings, the advantage of embodiment of the present disclosure and feature can be more apparent.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the internal-combustion engine in conjunction with the first illustrative embodiments of the present disclosure.
Fig. 2 is the schematic diagram of a part for the motor of Fig. 1.
Embodiment
With reference to Fig. 1, be shown to the schematic diagram of simplification according to a part for the internal-combustion engine of the first illustrative embodiments of the present disclosure, and totally illustrate by 10.Motor 10 comprises control system, and this control system produces fuel injection signal, and this fuel injection signal is passed to electric drive, is exaggerated in this electric drive place fuel injection signal.Then fuel injection signal is passed to fuel injector, and nozzle opened by this fuel injector or needle valve element arrives in firing chamber to allow fuel passing through fuel sparger.In order to the running time of computing fuel sparger, control system utilizes the information modeling that can obtain before fuel injection signal is passed to fuel injector and pre-direction finding fuel injector provides the pressure distribution in the fuel system of fuel under high pressure.Control system utilizes pressure model and adds the fuel command computing fuel sparger operating time.Can be used for can comprising pumping instruction, fuel system setting value or desired fuel system pressure, the pressure measurement signal from fuel system, the size being total to fuel rail or reservoir and fuel characteristic to the information of the pressure modeling in fuel system.
Motor 10 comprises: engine body 12, and this engine body comprises cluster engine 14 and is attached to the cylinder head 16 of cluster engine 14; Fuel system 18 and control system 20.Control system 20 receives the signal from the sensor be positioned on motor 10, and control signal is passed to and is positioned at device on motor 10 to control the function of these devices.Engine body 12 comprises crankshaft 22, multiple piston 24 and multiple connecting rod 26.Piston 24 is positioned in to-and-fro motion in multiple cylinder 28, and a piston 24 is positioned in a cylinder 28.A piston 24 is connected to crankshaft 22 by a connecting rod 26.As will be seen, the motion under the effect of the combustion process of piston 24 in motor 10 makes connecting rod 26 removable crank axle 22.
Multiple fuel injector 30 is positioned at cylinder head 16.Each fuel injector 30 fluid is connected to firing chamber 32, and this firing chamber each is formed by the part extended between corresponding piston 24 and cylinder head 16 of a piston 24, cylinder head 16 and cylinder 28.
Fuel system 18 provides fuel to sparger 30, and then these fuel are ejected in firing chamber 32 by the action of fuel injector 30, thus form one or more injection events.Fuel system 18 comprises fuel circuit 34, holds the fuel tank 36 of fuel, the high pressure fuel pump 38 of locating along fuel circuit 34 in fuel tank 36 downstream and the fuel reservoir of locating along fuel circuit 34 in high pressure fuel pump 38 downstream or rail 40.Although fuel reservoir or rail 40 are shown to individual unit or element, but reservoir 40 can be distributed in and transmit or receive on multiple elements of fuel under high pressure, such as fuel injector 30, high pressure fuel pump 38 and fuel under high pressure is connected to any circuit, passage, pipe, flexible pipe etc. of multiple element.Sparger 30 receives the fuel from fuel reservoir 40.Fuel system 18 can also be included in the entrance metering valve 44 that high pressure fuel pump 38 upstream is located along fuel circuit 34, and is included in one or more outlet non-return valves 46 of locating along fuel circuit 34 in high pressure fuel pump 38 downstream to allow the unidirectional flow in fuel from high pressure fuel pump 38 to fuel reservoir 40.Although not shown, other elements can be positioned with along fuel circuit 34.Such as, in entrance metering valve 44 downstream and at high pressure fuel pump 38 located upstream inlet non-return valve, or inlet non-return valve can be attached in high pressure fuel pump 38.Entrance metering valve 44 has the ability of the flow in fuel changing or be cut to high pressure fuel pump 38, and thus the flow in fuel to fuel reservoir 40 is cut off.Fuel circuit 34 makes fuel reservoir 40 be connected to fuel injector 30, so provide controlled fuel quantity to firing chamber 32.Fuel system 18 can also be included between fuel tank 36 and high pressure fuel pump 38 along the low-pressure fuel pump 48 that fuel circuit 34 is located.Before fuel flows in high pressure fuel pump 38, low-pressure fuel pump 48 makes fuel pressure increase to the first stress level.
Control system 20 can comprise controller or control module 50 and wire harness 52.Aspects more of the present disclosure can the element of hardware (such as, general computer, special-purpose computer, work station or other programmable data processing equipmenies) of the executive routine orders sequence of movement that will perform describe according to computer system or other.Recognize, in each mode of execution, can by special circuit (being such as interconnected the discrete logic gate performing dedicated functions), by one or more processor (such as one or more microprocessor, central processing unit (CPU) and or specific integrated circuit) or perform various action by the combination of the two.Such as, these mode of executions can be implemented in hardware, software, firmware, middleware, microcode or these any combination.Order can be the program-code or the code segment that perform necessary task, and can be stored in the machine readable media of such as storage medium or other storagies and so on.Code segment can represent any combination of process, function, subroutine, program, routine, subroutine, module, software kit, class or order, data structure or program statement.Code segment can by transmit and/or reception information, data, argument, parameter or store content be attached to another code segment or hardware circuit.
In addition, permanent machine readable media can be considered to be at such as solid-state memory, disk and embodiment in the computer readable carrier of arbitrary tangible form of the CD holding suitable computer command collection (such as program module and processor can be made to perform the data structure of technology described herein) and so on.Computer-readable medium can comprise following form: the electrical connection with one or more wire rod; Magnetic disk memory, cassette, tape or other magnetic storage devices, portable computer diskette, random access memory (RAM), ROM (read-only memory) (ROM), Erasable Programmable Read Only Memory EPROM (such as, EPROM, EEPROM or flash memory) or other tangible mediums arbitrary of information can be stored.
It should be noted that system of the present disclosure is illustrated in this article and is described as the multiple module and unit that have and perform specific function.Should be understood that and schematically show these modules and unit only based on these modules and unit for the function had a definite purpose, thus these modules and unit must not represent specialized hardware or software.Thus, these modules, unit and miscellaneous part can be implemented as hardware and/or the software of its specific function that actual execution illustrates herein.The various functions of different parts can be combined or be separated into hardware and/or software module in any manner, and the separation of these parts or combination can be useful.Include, without being limited to the input/output device of keyboard, display device, pointing device etc. or I/O device or user interface and directly or by intermediary's I/O controller can be attached to system.Therefore, many aspects of the present disclosure can be implemented in many different forms, and all these forms ought in the scope of the present disclosure.
Control system 20 can also comprise reservoir pressure sensor 54 and crank angle sensor.Although sensor 54 is described as pressure transducer, sensor 54 can be to demarcate into other devices providing the pressure signal representing fuel pressure, such as, and load cell, resistance strain gauge or other devices.Crank angle sensor can be gear sensor 56, rotary Hall sensor 58 or can measure the device of other types of angle of swing of crankshaft 22.Control system 20 utilizes the signal since reservoir pressure sensor 54 and crank angle sensor received to determine that firing chamber receives fuel, then determined firing chamber is received fuel and is used for analyzing the signal received from reservoir pressure sensor 54.
Control module 50 can be electronic control unit or electronic control module (ECM), and these electronic control units or electronic control module (ECM) can be monitored motor 10 or can be positioned with the situation of associated vehicle of motor 10.Control module 50 can be single processor, distributed processors, the electronics equivalent of processor or any combination of aforementioned components and software, electronic memory, fixing look-up table etc.Control module 50 can comprise digital circuit or analog circut.Control module 50 can be connected to some parts of motor 10 by wire harness 52, but also can realize such connection by other means comprising wireless system.Such as, control module 50 can be connected to entrance metering valve 44 and fuel injector 30, and provides control signal to entrance metering valve 44 and fuel injector 30.
When motor 10 operates, the burning in firing chamber 32 causes piston 24 to move.The connecting rod 26 that the movement of piston 24 makes driving be connected to crankshaft 22 moves, and the movement of connecting rod 26 causes crankshaft 22 in rotary moving.In order to contribute to timing and other objects of the combustion incident in motor 10, the angle of swing of crankshaft 22 measured by motor 10.Can in the angle of swing comprising main crankshaft belt pulley (not shown), engine flywheel (not shown), engine cam (not shown) or camshaft originally multiple position measurement crankshafts 22 with it.Gear sensor 56, rotary Hall sensor 58 and measure the angle of swing of crankshaft 22 by other technologies can be used.The signal of the angle of swing (also referred to as degree in crank angle) of signature song arbor 22 is passed to control system 20 from gear sensor 56, rotary Hall sensor 58 or other devices.
Crankshaft 22 drives high pressure fuel pump 38 and low-pressure fuel pump 48.The action of low-pressure fuel pump 48 promotes the fuel from fuel tank 36, and fuel is moved along fuel circuit 34 towards entrance metering valve 44.Fuel flow to high pressure fuel pump 38 through inlet non-return valve (not shown) to downstream along fuel circuit 34 from entrance metering valve 44.High pressure fuel pump 38 makes fuel downwards vacillate dynamic through outlet non-return valve 46 towards fuel reservoir or rail 40 along fuel circuit 34.Entrance metering valve 44 receives the signal from control system 20, and can operate into prevention flow in fuel to high pressure fuel pump 38.Entrance metering valve 44 can be Proportional valve, or can be between open position and closed position, fast modulation can flow through the switch valve of the fuel quantity of this valve with adjustment.
Fuel pressure sensor 54 is connected with fuel reservoir 40, thus can detect or measure the fuel pressure in fuel reservoir 40.The signal of the fuel pressure in instruction fuel reservoir 40 is sent to controller 50 by fuel pressure sensor 54.Fuel reservoir 40 is connected to each fuel injector 30.Control signal is provided to fuel injector 30 by control system 20, these control signals are that each fuel injector 30 determines that such as fuel injector 30 runs the operating parameter of the quantity of duration (operating time) and each burning or the interpolation fuel impulse in injection events cycle and so on, and this determines the fuel quantity that each fuel injector 30 is sent.
Go to Fig. 2, a part for motor 10 is shown.Control system 20 comprises fuel injector pulses generation module 60.Pulses generation module 60 receives various input, and utilize those inputs to generate the fuel injector pulse or the signal that are passed to driver 62, driver 62 is parts of motor 10, and fuel injector pulse is exaggerated with can the actuator of driving fuel sparger 30 in driver 62.Such amplification can be the amplification of voltage, electric current or two aspects.Then, the fuel injector pulse of amplification is provided to fuel injector 30 and opens with order fuel injector 30, thus fuel is provided to firing chamber 32.
Fuel injector pulses generation module 60 comprises sparger operating time module 64, this sparger operating time module utilizes various input to generate pulse width or the operating time of fuel injection event, pulse width or operating time are defined by such cycle or interval, and this cycle or interval are removed from nozzle or needle valve element (not shown) from one or multi-injector hole (not shown) to allow fuel to extend to nozzle from the fuel injector moment flow to firing chamber 32 or needle valve element is moved into the moment of closing by the flow in fuel of injector holes.Fuel injector pulses generation module 60 receives and performs CLK clock 66, and this execution CLK clock is used for for the event determination timing in fuel injector pulses generation module 60.Fuel injector pulses generation module 60 also receives: petrolift command signal F
cmd; Fuel system pressure signal P, this fuel system pressure signal can be provided by reservoir pressure sensor 54; Pressure setting value signal P
sp, this pressure setting value signal represents the goal pressure in fuel rail or reservoir 40; And start jeting instruction SOI
cmd, this starts jeting instruction and initiates fuel injection event nozzle or needle valve element moment of opening in other words, and this moment can also be described as the moment that fuel injector 30 starts to open.Each in these signals can be provided by other modules in control system 20, but fuel system pressure signal can directly be provided by reservoir pressure sensor 54.Be positioned on fuel reservoir or rail 40 although reservoir pressure sensor 54 is shown to, but can from fuel system pressure signal can be received by the pressure transducer at arbitrary high pressure spot and any position place between high pressure fuel pump 38 and fuel injector 30 in fuel circuit 34, foregoing fuel loop comprises the high pressure side of high pressure fuel pump 38 to the locations of high pressure in fuel injector 30.
Signal F
cmd, P, P
spand SOI
cmdin each received by sparger operating time module 64.These signals injected device operating time module 64 is for calculating or determining the fuel injector operating time.Sparger operating time module 64 comprises pressure prediction model module 68, sparger model module 70, summation module 72, integration module 74 and comparison module 76.Integration module 74 utilizes F
cmdlimit original fuel injection device operating time T
on, and original fuel injection device operating time T
onby conduct input and signal F
cmd, P, P
spand SOI
cmdbe provided to pressure prediction model module 68 together, to determine the pressure vector P estimated according to the pressure prediction model being positioned at module 68
e.The pressure vector P estimated
ewith the time vector t be associated
ebe imported in sparger model module 70 together, its utilize estimate by being in P
elower t
ei () is to t
e(i-1) the △ fuel quantity dF that the fuel injector of second sprays produces a vector, wherein i=1 to t
elength.△ fuel quantity dF can be expressed as the form of equation (1).
DF=f (P
e, t
e) equation (1)
△ fuel quantity dF is provided to summation module 72.
Input vector or △ fuel quantity dF are added to and represent T by summation module 72
oninterval on the estimator F of computing fuel
est, will T be considered
onthe estimator F of delivery of fuel
est.The estimator F of fuel
estbe provided to comparison module 76, in comparison module 76, perform equation (2) and equation (3), wherein tol limits F
estwith F
cmdbetween the predetermined Tolerance level of accepted deviation, thus determine T
oncalculated value whether be acceptable.
F
est-F
cmd>tol equation (2)
F
est-F
cmd<-tol equation (3)
Equation (2) is sent to integration module 74 with the result compared performed in equation (3).In integration module 74, if meet the condition of equation (2), so just reduce T
on.If meet the condition of equation (3), so just increase T
on.If T
onvalue change, so again perform the process performed in pressure prediction model module 68, sparger model module 70, summation module 72 and comparison module 76, until no longer meet the condition of equation (2) and equation (3).If T
ondo not meet the condition of equation (2) and equation (3), so T
onvalue be considered to converge on stationary value.
Once T
onvalue converge on stationary value, T
onwith SOI
cmdjust received by TTL pulses generation module 78, TTL pulses generation module 78 is parts of fuel injector pulses generation module 60.The generation of TTL pulses generation module 78 can be passed to fuel injector 30 to control the signal of fuel injection event.Then, fuel injector pulse is passed to driver 62.Driver 62 is by fuel injector pulse amplifying, and then this fuel injector pulse be exaggerated is passed to fuel injector 30.
Although show and describe numerous embodiments of the present disclosure, be appreciated that these mode of executions are not limited thereto.Those of ordinary skill in the art can change, modification and further these mode of executions of application.Therefore, these mode of executions are not limited to formerly shown and described details, but also comprise all these change and modification.
Claims (20)
1., for a fuel subassembly for motor, this fuel subassembly comprises:
Fuel reservoir;
Fluid is attached at least one fuel injector of described fuel reservoir, described fuel injector is formed at and allows fuel from the open position that described fuel injector flows out and forbid moving between the closed position that fuel flows out from described fuel injector, each motion between described open position and described closed position all limits fuel injection period, and described fuel injector is configured for multiple fuel injection period; And
Control system, this control system has the controller being operatively attached to described fuel injector, described controller is configured at least one parameter receiving described fuel subassembly, wherein before fuel injection period described in each, described controller is configured in each described fuel injection period process, remain on amount of time in described open position in response to described parameter to regulate described fuel injector.
2. fuel subassembly according to claim 1, wherein, described control system comprises at least one module of the pressure distribution for predicting described fuel subassembly.
3. fuel subassembly according to claim 2, this fuel subassembly also comprises petrolift, is operatively attached to the petrolift sensor of described petrolift and is operatively attached to the fuel reservoir sensor of described fuel reservoir, and at least one module structure described becomes to receive the signal from described petrolift sensor and described fuel reservoir sensor, to predict the described pressure distribution of described fuel subassembly.
4. fuel subassembly according to claim 1, wherein, at least one that at least one parameter described comprises petrolift signal, fuel subassembly pressure signal, pressure setting value signal and starts in injection signal.
5. fuel subassembly according to claim 1, wherein, described control system comprises further:
First module, this first module is configured to the estimated pressure determining described fuel subassembly; And
Second module, this second module is configured to the multiple fuel quantities determining described fuel subassembly.
6. fuel subassembly according to claim 5, wherein, described control system comprises the 3rd module, and the 3rd module is configured to described fuel quantity and predetermined fuel quantity to compare.
7. fuel subassembly according to claim 1, wherein, described control system comprises and is configured to send signal to described fuel injector and regulate described fuel injector to remain on the module of the amount of time in described open position.
8. a fuel subassembly for motor, this fuel subassembly comprises:
At least one fuel injector; And
For the control system of described fuel subassembly, this control system comprises:
Controller, this controller is configured at least one parameter receiving described fuel subassembly;
First module, this first module is for determining the time that fuel flows from described fuel injector;
Second module, this second module is for predicting the pressure distribution of fuel subassembly described in burner oil process; And
3rd module, the 3rd module is used for the time that fuel metering flows from described fuel injector in response to the described pressure distribution predicted for described fuel subassembly in the operating process of described motor.
9. fuel subassembly according to claim 8, this fuel subassembly comprises the petrolift being operatively attached to described fuel injector and the petrolift sensor being operatively attached to described petrolift further, and wherein said first module is configured to receive the signal from described petrolift sensor.
10. fuel subassembly according to claim 9, wherein, described first module is configured to the estimated pressure determining described fuel subassembly, and described second module is configured to the described estimated pressure receiving described fuel subassembly.
11. fuel subassemblies according to claim 10, wherein, described second module is configured to the fuel quantity determining described fuel subassembly, and described 3rd module is configured to the described fuel quantity of described fuel subassembly and predetermined tolerance amount to compare.
12. fuel subassemblies according to claim 8, wherein, described fuel injector is formed at and allows fuel from the open position that described fuel injector flows out and forbid moving between the closed position that fuel flows out from described sparger, and described control system comprises four module, this four module is configured to receive the time after the adjustment that fuel flows from described fuel injector, and initial time after the adjustment makes described fuel injector move to described open position.
13. 1 kinds of methods operating the fuel injector in the fuel subassembly of motor, the method comprises:
In fuel injection process, receive the parameter of described fuel subassembly;
In fuel injection process, based on described fuel subassembly described parameter prediction described in the pressure distribution of fuel subassembly;
In response to the amount of time that the described calculation of pressure distribution fuel of prediction flows from described fuel injector; And
Described fuel injector is made to run described amount of time.
14. methods according to claim 13, wherein, after predicting that the step of the pressure distribution of described fuel subassembly occurs in the step of the parameter receiving described fuel subassembly.
15. methods according to claim 13, the method comprises the described amount of time that the described parameter fuel metering based on described fuel subassembly flows from described fuel injector further.
16. methods according to claim 13, wherein, the step receiving the parameter of described fuel subassembly comprises at least one receiving petrolift signal, fuel subassembly pressure signal, pressure setting value signal and start in injection signal.
17. methods according to claim 13, wherein, predict that the step of the pressure distribution of described fuel subassembly comprises:
Determine the estimated pressure of described fuel subassembly;
Multiple fuel quantity is calculated based on described estimated pressure;
Calculate according to described multiple fuel quantity and estimate fuel quantity; And
Described estimation fuel quantity and predetermined tolerance amount are compared.
18. methods according to claim 17, wherein, determine that the step of described estimated pressure is performed by the first control module, the step calculating described multiple fuel quantity is performed by the second control module, the step calculating described estimation fuel quantity is performed by the 3rd control module, and the step that described estimation fuel quantity and described predetermined tolerance amount compare is performed by four module.
19. methods according to claim 17, the method comprises further:
Described estimation fuel quantity is analyzed relative to described predetermined tolerance amount;
The second estimated pressure of described fuel subassembly is determined when described estimation fuel quantity is beyond described predetermined tolerance amount;
Multiple second fuel quantity is calculated based on described second estimated pressure;
Calculate second according to described multiple second fuel quantity and estimate fuel quantity;
Estimate that fuel quantity and described predetermined tolerance amount compare by described second; And
Send the signal being used for fuel and flowing to described fuel injector when described second estimates that fuel quantity is corresponding with described predetermined tolerance amount.
20. methods according to claim 13, the method comprises further:
Start the first fuel injection period of described fuel injector;
The amount of time that fuel flows from described fuel injector is adjusted after described first fuel injection period; And
The second fuel injection period of described fuel injector is started after the amount of time that adjustment fuel flows from described fuel injector.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201361846384P | 2013-07-15 | 2013-07-15 | |
| US61/846,384 | 2013-07-15 | ||
| PCT/US2014/046644 WO2015009692A1 (en) | 2013-07-15 | 2014-07-15 | System and method for fuel injector on-time calculation using fuel system pressure prediction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105358817A true CN105358817A (en) | 2016-02-24 |
| CN105358817B CN105358817B (en) | 2017-11-10 |
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ID=52346671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480038368.5A Active CN105358817B (en) | 2013-07-15 | 2014-07-15 | For calculating the System and method for of fuel injector working time using fuel system pressure prediction |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN105358817B (en) |
| DE (1) | DE112014003273B4 (en) |
| WO (1) | WO2015009692A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110691901A (en) * | 2016-10-24 | 2020-01-14 | 康明斯公司 | Fuel pump pressure control structure and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010020467A1 (en) * | 1999-07-08 | 2001-09-13 | Coldren Dana R. | Pressure-intensifying hydraulically-actuated electronically-controlled fuel injection system with individual mechanical unit pumps |
| US20020124828A1 (en) * | 2001-01-09 | 2002-09-12 | Nissan Motor Co., Ltd. | Fuel injection control for diesel engine |
| US20030111049A1 (en) * | 2001-12-18 | 2003-06-19 | Lewis Stephen R. | Measuring check motion through pressure sensing |
| US20030121501A1 (en) * | 2002-01-02 | 2003-07-03 | Barnes Travis E. | Utilization of a rail pressure predictor model in controlling a common rail fuel injection system |
| CN101815858A (en) * | 2007-08-07 | 2010-08-25 | 德尔菲技术公司 | Fuel injector and method for controlling fuel injectors |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5678521A (en) * | 1993-05-06 | 1997-10-21 | Cummins Engine Company, Inc. | System and methods for electronic control of an accumulator fuel system |
-
2014
- 2014-07-15 DE DE112014003273.5T patent/DE112014003273B4/en not_active Expired - Fee Related
- 2014-07-15 WO PCT/US2014/046644 patent/WO2015009692A1/en active Application Filing
- 2014-07-15 CN CN201480038368.5A patent/CN105358817B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010020467A1 (en) * | 1999-07-08 | 2001-09-13 | Coldren Dana R. | Pressure-intensifying hydraulically-actuated electronically-controlled fuel injection system with individual mechanical unit pumps |
| US20020124828A1 (en) * | 2001-01-09 | 2002-09-12 | Nissan Motor Co., Ltd. | Fuel injection control for diesel engine |
| US20030111049A1 (en) * | 2001-12-18 | 2003-06-19 | Lewis Stephen R. | Measuring check motion through pressure sensing |
| US20030121501A1 (en) * | 2002-01-02 | 2003-07-03 | Barnes Travis E. | Utilization of a rail pressure predictor model in controlling a common rail fuel injection system |
| CN101815858A (en) * | 2007-08-07 | 2010-08-25 | 德尔菲技术公司 | Fuel injector and method for controlling fuel injectors |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110691901A (en) * | 2016-10-24 | 2020-01-14 | 康明斯公司 | Fuel pump pressure control structure and method |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112014003273T5 (en) | 2016-04-14 |
| DE112014003273B4 (en) | 2018-06-14 |
| CN105358817B (en) | 2017-11-10 |
| WO2015009692A1 (en) | 2015-01-22 |
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