WO2005066602A1 - エンジンの過渡試験装置および方法 - Google Patents
エンジンの過渡試験装置および方法 Download PDFInfo
- Publication number
- WO2005066602A1 WO2005066602A1 PCT/JP2005/000131 JP2005000131W WO2005066602A1 WO 2005066602 A1 WO2005066602 A1 WO 2005066602A1 JP 2005000131 W JP2005000131 W JP 2005000131W WO 2005066602 A1 WO2005066602 A1 WO 2005066602A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- engine
- control
- simulation
- control value
- transient
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
- F02D41/2406—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using essentially read only memories
- F02D41/2425—Particular ways of programming the data
- F02D41/2429—Methods of calibrating or learning
- F02D41/2432—Methods of calibration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/042—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12
-
- 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
- F02D2041/1433—Introducing closed-loop corrections characterised by the control or regulation method using a model or simulation of the system
Definitions
- the present invention is used for a transient test of an engine (internal combustion engine).
- the present invention relates to a transient test method and a system for adapting the transient characteristic performance of a diesel engine to a required performance target.
- An object of the present invention is to enable an engine control system that satisfies an engine transient performance target to be constructed in a short time.
- the transient characteristics of an engine refer to characteristics that change with time rather than a steady state in which the rotational speed and torque are constant. For example, the characteristics of the engine in a state where the vehicle is accelerating or decelerating, the rotation speed, etc. change.
- control factor for example, fuel injection amount, fuel injection timing, etc.
- a predetermined time for example, Change the control value of one control factor to a steady state and measure it after a predetermined time elapses, such as measuring the output of that state after elapse of 3 minutes
- control the control factor again Change the values and take measurements, such as taking measurements.
- a virtual vehicle model including an engine is created for each vehicle type in a simulator, and various control inputs to the vehicle model, for example, control of force, crank angle, etc., when the slit opening is used.
- a control value of a factor is input, and an engine speed, a vehicle speed, and a value of an exhaust gas temperature sensor are to be estimated as an output of a virtual vehicle model based on the input control value.
- Patent Document 1 JP-A-11-326135
- a method of deploying a vehicle model including a virtual engine model in a simulator and observing the behavior of the engine using the same is useful in that the time required for engine development can be reduced.
- the purpose is to create a simulation model of a vehicle model. Did not evaluate the performance required for engine transients.
- changing the control value of each control factor of the engine corresponding to the transient state and estimating the result has a problem of poor operability.
- the present invention has been made in view of such a background, and an object of the present invention is to provide a transient test device and a transient test method capable of reducing the time of a transient test of an engine. Further, the present invention provides a transient test apparatus and a transient test apparatus that allow an operator to visually grasp the set state of the control value when setting the control value of the engine that satisfies the performance target required for the engine in the transient state. The aim is to provide a method. Accordingly, an object of the present invention is to provide a transient test apparatus and method capable of shortening the time for engine development.
- a simulation is performed using a simulation model of the engine. That is, a control value is set in a virtual ECU that emulates an ECU (Electronic Control Unit or Engine Control Unit) that controls the engine, and a control signal is supplied to the simulation model based on the control value.
- ECU Electronic Control Unit or Engine Control Unit
- a control signal is supplied to the simulation model based on the control value.
- the control value is set in an actual ECU, and a transient test is performed using an actual engine.
- the present invention is for assisting the operation (tuning) of an operator.
- virtual engine test means for simulating a transient state in which the rotational speed or torque of the engine fluctuates as time passes.
- a simulation means that simulates the behavior of the engine with a transient engine model created based on the data obtained by operating the actual engine while changing the value of at least one control factor.
- Virtual control means that emulates an actual control means (ECU) that performs an engine control signal to the simulation means, and provides a control value for the control factor to the virtual control means, and outputs a simulation result of the simulation means to an operator.
- Control value operation means for displaying the control value according to the operation of the operator, and the control value operation means displays the control value used in the simulation together with the simulation result on the display means.
- an engine transient test apparatus including means for displaying a graph in a sequential manner.
- the correspondence between the execution result and the control value is displayed by the operator by displaying the control result used for executing the simulation in a time-series graph together with the display of the execution result of the simulation. Can be easily grasped visually.
- control value operating means updates the control value according to a drag operation performed by the operator on the control value graphically displayed on the display means. This allows the operator to perform an operation of changing the control value while visually grasping the correspondence between the simulation execution result and the control value. Therefore, it is possible to experimentally recognize the relationship between how the control value is changed and how the simulation execution result is changed, so that the performance target required for the engine in the transient state is satisfied. In a short time.
- control value operation means displays a target value of the simulation in the simulation means on the display means in parallel with a simulation result.
- the control value operating means displays, in a location where the difference between the simulation result and the target value exceeds an allowable range, a display pattern different from that of the other location based on the simulation result. It is desirable to make it. Also, it is desirable to display a control value corresponding to a location where the difference between the simulation result and the target value exceeds the allowable range in a display pattern different from the other locations. As a result, the operator can quickly grasp a portion to be reconsidered in the simulation result, and can improve the operation efficiency of the operator.
- the simulation execution time is divided into time slits for each unit time, and the simulation is performed.
- a time slit in which the integral value of the difference between the result of the operation and the target value exceeds the threshold value can be displayed in a different display pattern from the other time slits. According to this, the value of the simulation result having a short V and a pulse-like peak can be removed, and a portion exceeding the allowable range can be detected, so that highly accurate detection can be performed.
- the actual engine is operated by changing the value of at least one control factor in a transient state in which the rotational speed or the torque of the engine fluctuates over time.
- the control values are graphed in time series. And displaying the simulation result in parallel with the graphical representation of the control value in the fourth step.
- control value obtained when the result satisfying the performance target is obtained by repeating the second and fifth steps and the fifth step is given to the control means of the actual engine, and a transient test is actually performed on the actual engine.
- control value is updated by an operator performing a drag operation on the control value graphically displayed in the second step.
- the simulation target value can be displayed so as to be displayed in parallel with the simulation result in the fourth step.
- the difference between the simulation result and the target value exceeds the allowable range. It is desirable to display the obtained part in a different display pattern from the simulation result based on the simulation result. It is also desirable that the control pattern corresponding to the location where the difference between the simulation result and the target value exceeds the allowable range has a different display pattern from the other locations.
- the simulation execution time is divided into time slits per unit time, and the time slit in which the integrated value of the difference between the simulation result and the target value exceeds the threshold value is used. Can be displayed in a different display pattern from the time slit
- Simulation means for simulating the behavior of the engine using the created transient engine model; virtual control means for emulating real control means for controlling the actual engine and providing an engine control signal to the simulation means; and virtual control means for the virtual control means.
- control value operating means for displaying the simulation result of the simulation means on the display means of the operator, correcting the control value in accordance with the operation of the operator, and the simulation result together with the simulation result.
- the control value used for the simulation is displayed on the display means.
- Computer program is provided, characterized in that to achieve and means for sequentially graphically displayed.
- This computer program can be distributed as a storage medium that can be read by an information processing device, or can be directly installed in an information processing device via a network. Can be implemented.
- the operator when setting the control value of the engine that satisfies the performance target, the operator can visually grasp the setting status of the control value.
- the time for engine development can be shortened, and the time for product development can be shortened.
- FIG. 1 is a block diagram of an engine transient test apparatus that embodies the present invention.
- FIG. 2 is a flowchart showing an overall flow of an engine transient test including a test using an actual machine.
- FIG. 3 is a flowchart showing a flow of processing by a virtual engine test device.
- FIG. 4 is a view for explaining an example of data acquisition in a transient state.
- FIG. 5 is a diagram showing a display example on an operator terminal by a control value operation unit.
- FIG. 6 is a diagram showing an example of a control value correcting operation.
- FIG. 7 is a diagram showing a display example of simulation results and target values.
- FIG. 8 is a diagram showing a display example of a current control value and a target control value.
- FIG. 9 is a diagram showing an example of correcting a delay between a simulation result and a control value.
- FIG. 10 is a flowchart showing another example of the processing by the virtual engine test device.
- FIG. 11 is a diagram showing a display example divided into time slits.
- FIG. 12 is a diagram showing a display example in which a time slit exceeding an allowable range is displayed differently.
- FIG. 13 is a view showing a display example of a fuel injection amount control value usable as a control factor.
- FIG. 1 is a block diagram of an engine transient test apparatus that embodies the present invention.
- This engine transient test device is a virtual engine test device 1 that simulates a transient state in which the rotational speed or torque of the engine fluctuates with time, and a real machine transient test device that performs a transient test of an actual engine.
- the device 10 is provided.
- the actual machine transient test equipment 10 ECU 11 for controlling the gin, an engine 12 controlled by the ECU 11, a rotation detector 13 for detecting the rotation speed and torque of the crankshaft of the engine 12, a rotation speed output from the rotation detector 13 and the exhaust gas of the engine 12, Equipped with a measurement unit 14 that measures smoke and other (fuel consumption, etc.).
- the virtual engine test apparatus 1 simulates the behavior of the engine 12 by using a transient engine model created based on data obtained by operating the engine 12 while changing the value of at least one control factor.
- a virtual ECU 3 that emulates the ECU 11 and provides an engine control signal to the engine simulation unit 5; a control value for the control factor is given to the virtual ECU 3; and a simulation result of the engine simulation unit 5 is provided.
- the control value operation unit 4 can display the control result used in the simulation together with the simulation result in a time-series graph on the display screen of the operator terminal 6 (see FIG. 5).
- the virtual engine test apparatus 1 also provides a control value corrected by the control value operation unit 4 to the ECU 11 of the real machine transient test apparatus 10 to perform a transient test on the engine 12, ie, a measurement result obtained by performing a transient test.
- a model creating section 2 for updating the transient engine model of the engine simulation section 5 based on the output of the section 14 is provided.
- the real machine transient test apparatus 10 and the virtual engine test apparatus 1 may be connected using a LAN. Further, it is not necessary to provide the virtual engine test apparatus 1 and the operator terminal 6 adjacent to each other, and these can be connected using a LAN.
- FIG. 2 is a flowchart showing an overall flow of an engine transient test including a test using an actual machine
- FIG. 3 is a flowchart showing a processing flow by a virtual engine test apparatus.
- the actual engine 12 is operated by changing the value of at least one control factor in a transient state in which the rotation speed or the torque of the engine fluctuates as time passes ( S1), the data is acquired by the measuring unit 14 (S2). Using this data, a transient engine model is created in the model creating section 2 (S4), and a simulation is executed using this transient engine model as a virtual engine (S5).
- the transient engine model created by the model creation unit 2 is stored in the engine simulation unit 5 (S 50), and the control value operation unit 4 uses the transient engine model power to operate the virtual engine.
- the control value for the control factor is set in the virtual ECU 3 and is displayed on the operator terminal 6 (S51).
- the virtual ECU 3 emulates the ECU 11 that controls the engine 12 and provides an engine control signal to the virtual engine of the engine simulation section 5 based on the control value set by the control value operation section 4 to perform simulation. Is executed (S52).
- the control value operation unit 4 displays the simulation result on the operator terminal 6 (S53) and simultaneously displays the target value (S54). The operator looks at this display and determines whether or not the force has satisfied the performance target (S55). If the performance target is not satisfied, the control value operation unit 4 receives a correction of the control value corresponding to the displayed simulation result (S56). The above steps are repeated until the simulation result satisfies the performance target.
- the control value is given to the ECU 11, and a transient test is actually performed by the engine 12 (S1).
- the data is acquired by the measuring unit 14 (S2), and it is confirmed whether the required transient performance target is actually satisfied (S3). If satisfied, control software for the ECU 11 is created using the control values (S6). If the power is satisfied, the transient engine model is updated in the model creation section 2 (S4), and the simulation is executed (S5).
- FIG. 4 is a graph in which the rotation speed, the torque, and the control factor are recorded and displayed. If there is a delay between the change of the control factor and the change of the rotation speed and the torque, this can be corrected and recorded and displayed. This makes it possible to clearly indicate the change in the rotation speed and the torque corresponding to the change in the control factor.
- EGR and VGT are used as control factors
- NOx grams per hour (gZh) and smoke grams per second (gZs) are used as performance target indicators.
- Measure smoke S2
- a model is created by the model creating unit 2 (S4), stored in the engine simulation unit 5 (S50 in FIG. 3), and the simulation according to the above procedure is started.
- FIG. 5 shows a display example on the operator terminal 6 by the control value operation unit 4.
- the control value operation unit 4 causes the operator terminal 6 to graphically display the EGR control value and the VGT control value, which are the control values used in the simulation, in a time-series graph, together with the NOx emission amount and the smoke emission amount that are the simulation results.
- a control value set in the ECU 11 and a result measured by the measurement unit 14 at the time of the first actual machine test are displayed.
- the operator drags the control values graphically displayed on the operator terminal 6 with the mouse.
- the operation status at this time is notified from the operator terminal 6 to the control value operation unit 4, and the control value operation unit 4 obtains a new control value and displays it on the operator terminal 6.
- the control value can be changed while visually confirming the change in the graph shape.
- FIG. 6 shows an example of a control value correcting operation.
- the range to be changed is specified along the horizontal axis of the screen for the current control value draft shown in FIG. 6 (a). This range is specified by dragging the pointer on the screen along the horizontal axis by operating the mouse as shown in Fig. 6 (b).
- an increase / decrease range to be changed is designated in the vertical axis direction of the screen. This increase / decrease width is specified by dragging the pointer on the screen in the vertical axis direction by operating the mouse as shown in FIG. 6 (c).
- the simulation target value can be displayed in parallel with the simulation result.
- Fig. 7 shows an example.
- the simulation results (virtual measured values) of NOx and smoke are indicated by solid lines, and the target values are indicated by broken lines.
- the operator determines whether the difference between the virtual actual measurement value and the target value is within the allowable range, and when the difference is outside the allowable range, the virtual actual measurement value is determined. Correct the control value so that the value approaches the target value.
- FIG. 8 shows an example in which the control value before correction is indicated by a solid line, and the control value after correction is indicated by a broken line.
- control value changed in this way is provided to the virtual ECU 3 again, and the simulation by the engine simulation unit 5 is executed.
- Figure 9 shows an example of delay correction. Test patterns are inserted to intentionally disturb the EGR control value. The effects of this disturbance appear as significant changes in the amount of smoke after time t. As a result, it can be seen that there is a delay of t time between the EGR control value and the smoke amount.By correcting this and displaying it, the simulation execution result and the control value correspond in chronological order. Can be done. The delay between another simulation execution result and the control value can be similarly corrected.
- FIG. 10 shows the flow of such processing.
- This processing shows the flow of processing by the target value parallel display (S54) and the virtual engine test apparatus.
- This processing flow is different from the processing flow shown in FIG. 3 in that the control value operation unit 4 displays the simulation result and the target value on the operator terminal 6 (S53, S54), and then compares the execution result with the target value. It is determined whether there is a portion where the difference exceeds the allowable range (S61) . If there is a portion that exceeds the difference, a warning is displayed with a display pattern different from the others so that the portion can be immediately noticed by the operator. Display is performed (S62).
- FIGS. 11 and 12 show display examples divided into time slits.
- the simulation result virtual measured value
- the target value are displayed in parallel in a time slit. ing.
- the display example in Fig. 11 the simulation result (virtual measured value) and the target value are displayed in parallel in a time slit. ing.
- the virtual measured value and the target value are displayed differently from the other time slits. Also, the display is different from other swim slits. Although the display different from the others is shown by hatching in FIGS. 11 and 12, it is desirable that the display be changed in color for practical use.
- the EGR control value and the VGT control value have been described as examples of the control factors, but other control factors can be similarly described.
- the control value of the fuel injection amount corresponding to the transient state of NOx and smoke shown in FIG. 7 as shown in FIG. 13 can be used.
- the operator when simulating the transient state of the engine and setting the control value of the engine that satisfies the performance target, the operator visually checks the setting state of the control value. I can figure it out.
- the time for engine development can be shortened, and the time for product development can be shortened.
- the virtual engine test apparatus 1, particularly the virtual ECU 3, the engine simulation section 5, and the control value operation section 4 in the above-described embodiment can be implemented using a general-purpose information processing apparatus.
- the present invention can be implemented as a computer program that realizes the above-described units by being installed in a general-purpose information processing apparatus, and is further embodied as a recording medium readable by an information processing apparatus that stores such a computer program. can do.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Testing Of Engines (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/585,406 US20090187390A1 (en) | 2004-01-09 | 2005-01-07 | Engine Transition Test Instrument and Method |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-004342 | 2004-01-09 | ||
JP2004004323A JP4213049B2 (ja) | 2004-01-09 | 2004-01-09 | エンジンの過渡試験装置および方法 |
JP2004-004323 | 2004-01-09 | ||
JP2004004342A JP4145806B2 (ja) | 2004-01-09 | 2004-01-09 | 過渡エンジン試験装置および方法 |
Publications (1)
Publication Number | Publication Date |
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WO2005066602A1 true WO2005066602A1 (ja) | 2005-07-21 |
Family
ID=34752099
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/000131 WO2005066602A1 (ja) | 2004-01-09 | 2005-01-07 | エンジンの過渡試験装置および方法 |
Country Status (2)
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US (1) | US20090187390A1 (ja) |
WO (1) | WO2005066602A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2659659C1 (ru) * | 2017-04-10 | 2018-07-03 | Федеральное государственное унитарное предприятие "Центральный институт авиационного моторостроения им. П.И. Баранова" | Способ определения предзадирного состояния в сопряжении цилиндро-поршневой группы двигателя внутреннего сгорания |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5153465B2 (ja) * | 2008-06-09 | 2013-02-27 | インターナショナル・ビジネス・マシーンズ・コーポレーション | シミュレーション方法、システム及びプログラム |
JP6252793B2 (ja) * | 2015-02-02 | 2017-12-27 | マツダ株式会社 | エンジンの試験方法及びエンジンの試験装置 |
KR102644366B1 (ko) * | 2018-08-27 | 2024-03-07 | 현대자동차주식회사 | 엔진 가상시험환경 시스템 및 ems 매핑 방법 |
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JPS566134A (en) * | 1979-06-28 | 1981-01-22 | Nissan Motor Co Ltd | Diagnostic unit of controller for car |
JPS60340A (ja) * | 1983-06-16 | 1985-01-05 | Oki Electric Ind Co Ltd | 自動車用動作制御装置の試験方式 |
JPH0362202A (ja) * | 1989-07-31 | 1991-03-18 | Japan Electron Control Syst Co Ltd | 制御プログラム開発装置 |
JPH09151779A (ja) * | 1995-11-29 | 1997-06-10 | Unisia Jecs Corp | コントロール装置の検査装置 |
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JPH10281939A (ja) * | 1997-02-14 | 1998-10-23 | Schlumberger Technol Inc | Emsテストシステム |
JP2002304438A (ja) * | 2001-04-04 | 2002-10-18 | Denso Corp | 車両開発システム |
JP2003108614A (ja) * | 2001-09-27 | 2003-04-11 | Mazda Motor Corp | 新型車両の企画、設計及び検証を支援するプログラム |
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WO1991010057A1 (fr) * | 1989-12-25 | 1991-07-11 | Nippondenso Co., Ltd. | Unite de commande numerique |
US5619631A (en) * | 1995-06-07 | 1997-04-08 | Binaryblitz | Method and apparatus for data alteration by manipulation of representational graphs |
CA2340557C (en) * | 2000-03-14 | 2004-05-25 | Honda Giken Kogyo Kabushiki Kaisha | Simulator for automatic vehicle transmission controllers |
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2005
- 2005-01-07 WO PCT/JP2005/000131 patent/WO2005066602A1/ja not_active Application Discontinuation
- 2005-01-07 US US10/585,406 patent/US20090187390A1/en not_active Abandoned
Patent Citations (8)
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JPS566134A (en) * | 1979-06-28 | 1981-01-22 | Nissan Motor Co Ltd | Diagnostic unit of controller for car |
JPS60340A (ja) * | 1983-06-16 | 1985-01-05 | Oki Electric Ind Co Ltd | 自動車用動作制御装置の試験方式 |
JPH0362202A (ja) * | 1989-07-31 | 1991-03-18 | Japan Electron Control Syst Co Ltd | 制御プログラム開発装置 |
JP2803364B2 (ja) * | 1989-12-25 | 1998-09-24 | 株式会社デンソー | ディジタル制御装置 |
JPH09151779A (ja) * | 1995-11-29 | 1997-06-10 | Unisia Jecs Corp | コントロール装置の検査装置 |
JPH10281939A (ja) * | 1997-02-14 | 1998-10-23 | Schlumberger Technol Inc | Emsテストシステム |
JP2002304438A (ja) * | 2001-04-04 | 2002-10-18 | Denso Corp | 車両開発システム |
JP2003108614A (ja) * | 2001-09-27 | 2003-04-11 | Mazda Motor Corp | 新型車両の企画、設計及び検証を支援するプログラム |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2659659C1 (ru) * | 2017-04-10 | 2018-07-03 | Федеральное государственное унитарное предприятие "Центральный институт авиационного моторостроения им. П.И. Баранова" | Способ определения предзадирного состояния в сопряжении цилиндро-поршневой группы двигателя внутреннего сгорания |
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Publication number | Publication date |
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US20090187390A1 (en) | 2009-07-23 |
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