EP3077649A1 - Method for operating an internal combustion engine coupled to a generator, and device for carrying out the method - Google Patents
Method for operating an internal combustion engine coupled to a generator, and device for carrying out the methodInfo
- Publication number
- EP3077649A1 EP3077649A1 EP15702671.7A EP15702671A EP3077649A1 EP 3077649 A1 EP3077649 A1 EP 3077649A1 EP 15702671 A EP15702671 A EP 15702671A EP 3077649 A1 EP3077649 A1 EP 3077649A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- torque
- control
- generator
- combustion engine
- internal combustion
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/06—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
- F02B63/042—Rotating electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
- F02D35/023—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure
- F02D35/024—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining the cylinder pressure using an estimation
-
- 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
- F02D41/021—Introducing corrections for particular conditions exterior to the engine
-
- 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
- F02D41/04—Introducing corrections for particular operating conditions
- F02D41/08—Introducing corrections for particular operating conditions for idling
- F02D41/083—Introducing corrections for particular operating conditions for idling taking into account engine load variation, e.g. air-conditionning
-
- 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
-
- 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
- F02D41/1497—With detection of the mechanical response of the engine
-
- 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
- F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
- F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
Definitions
- the invention relates first of all to a method for operating an internal combustion engine coupled to a generator. It further relates to a control and regulating device as a device for carrying out the method.
- Generators that are powered by an internal combustion engine are known per se.
- the combus ⁇ tion motor is coupled to an electric generator and the generator is a frequency converter downstream.
- the tendency in arrangements with a coupled to an internal combustion engine generator is lightweight, so that, for example, flywheels, as previously provided to compensate for any speed fluctuations are avoided as far as possible or at least the moving masses are reduced.
- the generator is usually operated at a predetermined or predetermined speed.
- the generator is assigned a speed controller. Based on the Drehiererege ⁇ ment of the internal combustion engine and there running combustion process out. This can be done according to different criteria. For example, power, efficiency and emission are conceivable.
- a control and crizungsein ⁇ direction is provided with means for carrying out the here and below described operating method, wherein the means for performing the operating method means comprise at least one control unit and a speed controller and wherein by means of the speed controller as a manipulated variable, a target torque can be output.
- the measured value recorded in the system is a pressure measurement recorded on the internal combustion engine, namely a pressure measurement which indicates the pressure in the combustion chamber of the internal combustion engine.
- the counter torque / additional torque is then calculated based on the pressure reading.
- a counter-torque is also calculated as additional torque with which the setpoint torque output by the speed controller is applied.
- no pressure reading recorded in the system is used here. Instead, the calculation of the counter torque / additional torque takes place by estimating a pressure prevailing in the combustion chamber of the internal combustion engine by means of a thermodynamic model and calculating the counter torque / additional torque on the basis of the estimated pressure.
- a precontrol torque is calculated in the calculation of the additional torque by means of a pilot control block, with which the setpoint ⁇ torque output by the speed controller is acted upon as additional torque.
- one of the calculated additional torques and the additional torque output by the pilot control block are used simultaneously.
- the desired output from the speed controller ⁇ torque is beauf beat ⁇ thus with the output from the control block additional torque as well as with the determined or estimated based on the measured pressure in the combustion chamber of the internal combustion engine additional torque.
- the control and regulation device is characterized as ⁇ by that, by means of the control and crizungseinrich ⁇ tung one in the system, namely the internal combustion engine, the recorded pressure measurement value is processed, that on the basis of the pressure ⁇ measured value and on the basis of means
- the control unit of ⁇ viable data namely at least one geometry value, a desired position and kinematics data, the additional torque can be determined and that the target torque with the addi ⁇ chen torque can be acted upon.
- a first alternative embodiment of the control and regulation device is intended and adapted to be determined by means of one of the control and crizungseinrich ⁇ tung included thermodynamic model an estimated value for the combustion chamber of the internal combustion engine prevailing pressure that wasbbarer basis of the estimated value and by means of the control unit Data, namely at least one geometry value, a desired position and kinematics data, the additional torque can be determined and that the target torque ⁇ torque can be acted upon by the additional torque.
- a further alternative embodiment of the control and regulation device is intended and arranged to by means of a covered by the control and crizungseinrich ⁇ tung pilot control block, a Vor whyungsnavmo ⁇ ment can be determined and that the target torque beankschlag with the pre ⁇ control torque as an additional torque is ⁇ bar ,
- control and regulation device which is intended for executing the method, wherein one of said calculated additional torque and the output from the control block additional torque are used interchangeably ⁇ time, characterized by a Verwirkli ⁇ monitoring a combination of the corresponding above-mentioned features out .
- the invention is also a system with a generator and an internal combustion engine and a control and regulating device with the features described here and below.
- FIG. 1 a first embodiment of a control and regulating device for controlling and regulating a system of the type shown in FIG. 1
- a second embodiment of a control and regulating device for controlling and regulating a system of the type shown in FIG. 1
- FIG. 1 A third embodiment of a control and regulating device for controlling and regulating a system of the type shown in FIG.
- FIG. 1 shows, in a schematically simplified form, the basic structure of a system 10 of the type considered here.
- the system 10 includes an electric motor operated as a generator 12 and an internal combustion engine 14
- Internal combustion engine 14 is mechanically coupled to generator 12. Within the illustration of the internal combustion engine 14, the crankshaft and a piston 16 are shown.
- the Ver ⁇ internal combustion engine 14 may include more than the shown one piston 16, so for example be designed as a double piston engine.
- the alternating current generated by the generator 12 is ei ⁇ nem here as a rectifier inverter shown (frequency converter) is supplied to the eighteenth At the output of the inverter 18, the originally generated by the internal combustion engine 14 energy can be tapped in the form of electrical energy.
- the system 10 is contemplated as a mobile system for use in, for example, a motor vehicle.
- the system 10 is also suitable as an emergency power generator or the like.
- A for example, from the inverter 18 comprised ⁇ control and regulation device 20 (FIG 2) causes a control of the system 10, namely, for example, a speed control of the generator 12.
- a position sensor 22 is associated with the generator 12.
- a La ⁇ spirit value is available in operation and a time course of Lüist ⁇ value is a measure of the respective speed of the generator 12.
- This is a position feedback value from the position encoder 22 23 as well as directly or at least indirectly a speed value 24 (FIG 2) available.
- the internal combustion engine 14 is associated with a pressure sensor 26.
- the pressure sensor 26 is a measured value with respect to a generated during operation of the combus ⁇ tion motor 14 in the piston chamber pressure
- the measured pressure value 28 and the actual position value 23 and / or the actual speed 24 are fed to the control and crizungsein ⁇ direction 20th On their basis, a manipulated variable 30 for influencing the system 10 is generated.
- process forces generated by the combustion taking place in the combustion 14 combustion pressure generated by the movement and acceleration of the piston 16 mass forces.
- the process forces are known or can be measured and the approach explained below is based on a linearization of the process forces and a subsequent speed control and / or a precontrol of the process forces and a subsequent speed control.
- FIG 2 shows the already mentioned Steue- rungs- and control device 20 with further details, namely lent to a control unit 32, and a ⁇ Speed control ler 34 as functional units within the control and regulation device 20th
- the target ⁇ speed ⁇ * may in this case (not shown) of the output value of the system 10 of the upstream current regulator.
- the speed controller 34 outputs as a manipulated variable 30 a Sollcardmo ⁇ ment T *. For linearization is at a speed which regier 34 subsequent summation point of the Sollcardmo ⁇ ment T * the torque which has to apply to the prevailing pressure in the combustion chamber of the generator 12 is subtracted.
- the force currently acting on the generator 12 can be calculated, since the resulting force is calculated in the form of a product from the pressure prevailing in the combustion space and the area A of the piston 16.
- An automatically processable value for the area A of the piston 16 is output by the control unit 32 due to a respective predetermined or specifiable parameterization as a geometry value 38.
- the current position ⁇ (rotational position) of the rotor of the Ge ⁇ nerators 12 is known.
- a respective desired position ⁇ * 40 and an angle-dependent tion ratio between the rotational position of the rotor and the translational position x of the piston 16 known.
- Control and regulating device 20 so far includes a transmission member 42, which on the basis of the desired position ⁇ * 40 a measure of the change in the translational position of the
- Piston 16 in response to the change in the rotational position of the rotor (dx / dcp) * outputs.
- the transfer function f (Cp *) of the transmission member 42 is influenced by means of the Steue ⁇ approximation unit 32 dispensable kinematic data 44th
- the respectively output kinematics data 44 are likewise based on a predefined or predefinable parameterization of the control and regulation device 20.
- Target torque T * is applied, the torque to be calculated, which must apply the generator 12 against the pressure prevailing in the combustion chamber pressure (counter torque T). Thereafter, the counter-moment arises as
- thermodynamic model 46 go as input values in addition to the current position ⁇ (actual position value 23) or the respective desired position ⁇ * 40 of the ro tors of the generator 12, the geometry value of 38 or other Ge ⁇ ometriechal, the kinematic data 44 and thermodynamics data 48, for example a Information about each in the burn 10
- control and regulating device 20 shown in FIG. 4 is independent of the embodiments shown in FIG. 2 and FIG. However, the described embodiments can also be combined, for example in the form of a combination of the embodiments in FIG. 2 and FIG. 4 or a combination of the embodiments in FIG. 3 and FIG.
- the advantage of a control and regulating device 20 of the type described here is that is relieved by the direct control of the process forces the speed controller 34, since ideally otherwise taken into account by the speed controller 34 disturbance forces.
- the speed controller 34 is therefore only responsible for implementing an ideal process control on the basis of the predetermined speed of the control unit 32 ⁇ * 36. If in addition to the
- Flywheels can be omitted without reducing the speed stability. This results in a lighter construction and a lower required current for accelerating and decelerating the moving masses.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15702671.7A EP3077649A1 (en) | 2014-02-27 | 2015-01-21 | Method for operating an internal combustion engine coupled to a generator, and device for carrying out the method |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14156990.5A EP2913502A1 (en) | 2014-02-27 | 2014-02-27 | Method for operating a combustion engine coupled with a generator and device for carrying out the method |
EP15702671.7A EP3077649A1 (en) | 2014-02-27 | 2015-01-21 | Method for operating an internal combustion engine coupled to a generator, and device for carrying out the method |
PCT/EP2015/051136 WO2015128121A1 (en) | 2014-02-27 | 2015-01-21 | Method for operating an internal combustion engine coupled to a generator, and device for carrying out the method |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3077649A1 true EP3077649A1 (en) | 2016-10-12 |
Family
ID=50193271
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14156990.5A Withdrawn EP2913502A1 (en) | 2014-02-27 | 2014-02-27 | Method for operating a combustion engine coupled with a generator and device for carrying out the method |
EP15702671.7A Withdrawn EP3077649A1 (en) | 2014-02-27 | 2015-01-21 | Method for operating an internal combustion engine coupled to a generator, and device for carrying out the method |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14156990.5A Withdrawn EP2913502A1 (en) | 2014-02-27 | 2014-02-27 | Method for operating a combustion engine coupled with a generator and device for carrying out the method |
Country Status (5)
Country | Link |
---|---|
US (1) | US10030591B2 (en) |
EP (2) | EP2913502A1 (en) |
CN (1) | CN106030080B (en) |
CA (1) | CA2940737A1 (en) |
WO (1) | WO2015128121A1 (en) |
Families Citing this family (9)
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WO2018100075A1 (en) | 2016-12-01 | 2018-06-07 | Siemens Aktiengesellschaft | Two-phase cooling for an electric drive system |
DE102017212798A1 (en) | 2017-07-26 | 2019-01-31 | Siemens Aktiengesellschaft | Electric motor with cooling device |
DE102017223800A1 (en) | 2017-12-27 | 2019-06-27 | Siemens Aktiengesellschaft | Cooling a rotor of an electric machine |
DE102018100541B3 (en) * | 2018-01-11 | 2019-07-11 | Mtu Friedrichshafen Gmbh | Method for controlling and regulating an internal combustion engine with generator and asynchronous machine, control and regulating device for an internal combustion engine with generator and asynchronous machine and internal combustion engine with generator and asynchronous machine |
DE102018205623A1 (en) | 2018-04-13 | 2019-10-17 | Siemens Aktiengesellschaft | Statorzahnsystem |
DE102018211459B4 (en) | 2018-07-11 | 2021-10-21 | Rolls-Royce Deutschland Ltd & Co Kg | Aircraft propulsion system |
CN109944707B (en) * | 2019-05-06 | 2021-10-01 | 徐州徐工挖掘机械有限公司 | Control method for improving fuel economy of excavator |
DE102021206424B4 (en) * | 2021-06-22 | 2023-02-16 | Rolls-Royce Solutions GmbH | Control device for controlling a power arrangement comprising an internal combustion engine and a generator drivingly connected to the internal combustion engine, control arrangement with such a control device, power arrangement and method for controlling a power arrangement |
DE102021206422B4 (en) * | 2021-06-22 | 2023-02-16 | Rolls-Royce Solutions GmbH | Control device for controlling a power arrangement comprising an internal combustion engine and a generator drivingly connected to the internal combustion engine, control arrangement with such a control device, power arrangement and method for controlling a power arrangement |
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-
2015
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- 2015-01-21 US US15/120,360 patent/US10030591B2/en active Active
- 2015-01-21 CN CN201580010908.3A patent/CN106030080B/en active Active
- 2015-01-21 CA CA2940737A patent/CA2940737A1/en not_active Abandoned
- 2015-01-21 EP EP15702671.7A patent/EP3077649A1/en not_active Withdrawn
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EP0964985A1 (en) * | 1997-03-06 | 1999-12-22 | Continental ISAD Electronic Systems GmbH & Co. KG | Propulsion system, especially for a motor vehicle and method for regulating the idling speed of an internal combustion engine |
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Title |
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See also references of WO2015128121A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN106030080B (en) | 2019-11-26 |
WO2015128121A1 (en) | 2015-09-03 |
EP2913502A1 (en) | 2015-09-02 |
US10030591B2 (en) | 2018-07-24 |
CN106030080A (en) | 2016-10-12 |
US20170254275A1 (en) | 2017-09-07 |
CA2940737A1 (en) | 2015-09-03 |
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