WO2018041584A1 - Détermination de l'état d'activation des cylindres d'un moteur à combustion interne - Google Patents

Détermination de l'état d'activation des cylindres d'un moteur à combustion interne Download PDF

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Publication number
WO2018041584A1
WO2018041584A1 PCT/EP2017/070279 EP2017070279W WO2018041584A1 WO 2018041584 A1 WO2018041584 A1 WO 2018041584A1 EP 2017070279 W EP2017070279 W EP 2017070279W WO 2018041584 A1 WO2018041584 A1 WO 2018041584A1
Authority
WO
WIPO (PCT)
Prior art keywords
internal combustion
combustion engine
rotational speed
electric machine
cylinder
Prior art date
Application number
PCT/EP2017/070279
Other languages
German (de)
English (en)
Inventor
Paul Mehringer
Joerg Maas
Udo Schulz
Wolfgang Fischer
Zoltan Ersek
Original Assignee
Robert Bosch Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to CN201780053633.0A priority Critical patent/CN109642512A/zh
Priority to EP17758447.1A priority patent/EP3507478A1/fr
Publication of WO2018041584A1 publication Critical patent/WO2018041584A1/fr

Links

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
    • F02D41/02—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
    • 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
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/008—Controlling each cylinder individually
    • F02D41/0087—Selective cylinder activation, i.e. partial cylinder operation
    • 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
    • F02D41/0097—Electrical control of supply of combustible mixture or its constituents using means for generating speed signals
    • 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
    • G01M15/046—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12 by monitoring revolutions
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/14—Electronic commutators
    • H02P6/16—Circuit arrangements for detecting position
    • H02P6/17—Circuit arrangements for detecting position and for generating speed information
    • 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
    • F02D2200/10—Parameters related to the engine output, e.g. engine torque or engine speed
    • F02D2200/101—Engine speed

Definitions

  • the present invention relates to a method for determining a cylinder circuit in an internal combustion engine, as well as a computing unit, preferably a controller for an electrical machine and a computer program for performing the method.
  • electrical machines for regulating the vehicle electrical system voltage in vehicles, electrical machines, in particular externally excited electrical machines, can be used. These have a controller which regulates the excitation current of the electric machine as a function of the vehicle electrical system voltage.
  • a controller which regulates the excitation current of the electric machine as a function of the vehicle electrical system voltage.
  • Such a machine is known from DE 10 2012 204 751 AI.
  • intelligent controllers which adjust depending on the respectively detected by the engine control unit operating conditions of the internal combustion engine, the excitation current of the electric machine accordingly to ensure a correspondingly optimized operation of internal combustion engines and electrical machines coupled thereto.
  • an electric machine is mentioned below, this can also be a generator and / or a motor-operated electric machine.
  • the controller controls the current output of the generator in the electrical system of the motor vehicle via a setpoint voltage specification of the vehicle electrical system voltage.
  • a communication link between the controller and the engine control unit must be present and always maintained in order to enable a corresponding control of the electric machine.
  • the operating state detection of the internal combustion engine is not based on control specifications of the engine control unit, but on objective state variables or directly based measured variables that reliably reproduce the operating state of the internal combustion engine and autonomously determined by the controller of the electric machine. Furthermore, it would be desirable to carry out corresponding control specifications of the electrical machine coupled to the internal combustion engine directly from the specifically determined measured variables and the resulting operating states of the internal combustion engine.
  • the method is used to determine the operating state cylinder wiring of an internal combustion engine by means of a control unit, wherein preferably the control unit is designed as a controller of an electric machine coupled to an internal combustion engine.
  • a control unit is designed as a controller of an electric machine coupled to an internal combustion engine.
  • a targeted shutdown and / or switching on at least one cylinder of the internal combustion engine to understand, in particular to reduce accordingly fuel consumption (cylinder deactivation), or in the case of an increased torque request to the internal combustion engine, this by a corresponding turning on or connecting to effect of non-active cylinders of the internal combustion engine.
  • non-active cylinders are understood to mean cylinders which pass only passively in the internal combustion engine without carrying out a combustion process.
  • the electric machine can be driven by the internal combustion engine, wherein the electric machine with the internal combustion engine firmly connected and can be coupled to the crankshaft, for example by means of a belt drive. It is also possible that the electric machine is coupled via a freewheel to the crankshaft of the internal combustion engine.
  • the time profile of a rotational speed of the electric machine coupled to the internal combustion engine is determined.
  • a determination of the speed is preferably carried out by the time profile of at least one phase signal of the electric machine, wherein the phase signal may be at least one phase voltage or a phase current of the stator-side phase winding of the electric machine.
  • a determination of the rotational speed by means of a rotational speed sensor can be made, which can be arranged to determine the rotational speed in or on the electric machine.
  • a speed pattern effected by the internal combustion engine is determined from the time profile of the determined rotational speed of the electric machine, the rotational speed pattern having an oscillation superimposed on the time curve of the mean value of the rotational speed.
  • oscillations superimposed on the mean value of the rotational speed which are caused by the power strokes and / or the compression or decompression of the cylinders of the internal combustion engine, are essentially periodic for static or quasi-static operating states of the internal combustion engine and therefore have at least internal half a corresponding time interval on a clearly definable frequency and amplitude.
  • a cylinder circuit of the internal combustion engine is closed when an absence or occurrence of an amplitude, in particular a periodic absence or occurrence of an amplitude, is detected in the time course of the oscillation.
  • the frequency of the torque output is essentially determined by the current speed and the number of cylinders of the internal combustion engine. If a cylinder is connected accordingly, i. switched on or off, with only a passive running of the cylinder is connected within the internal combustion engine at a shutdown, the periodic pattern of the amplitudes of the oscillation is changed accordingly, since the pulse-like torque input corresponding to a larger number (cylinder activation) or a smaller number (cylinder deactivation ) Cylinders is effected. On the basis of such a signature, a cylinder circuit can be reliably detected.
  • a characteristic change of the remaining amplitudes in the time course of the oscillation is detected. If the engine slides from an operating range without cylinder deactivation into an operating range with cylinder deactivation, then the remaining active cylinders have to take over the torque of the deactivated cylinders, which then causes the oscillations, in particular the amplitudes of the oscillation in the instantaneous speed of the active remaining Change cylinder, in particular, depending on the respective requested torque increase.
  • the torque requested by the internal combustion engine is distributed to at least one further cylinder, which leads to a reduction in the amplitudes of the oscillation in the instantaneous speed. This effect can be used alone or in addition as indica- be used for detecting the cylinder deactivation or a cylinder activation.
  • a cylinder circuit is then closed when a factor influencing the frequency of the oscillation is changed depending on the number of connected cylinders.
  • a possible transmission ratio between the pulleys may also be taken into account when determining the frequency fmoment.
  • the method has a further method step for controlling the electric machine, wherein the excitation current of the electric machine, in the operating state of the electric machine BeAnglten the cylinder of the internal combustion engine is controlled such that the braking torque or that of the internal combustion engine to overcoming drag torque of the electric machine is increased or decreased.
  • An adaptation of the braking torque or drag torque caused by the electric machine to the internal combustion engine is therefore advantageous, since in the case of an increased torque request to the internal combustion engine and switching on of additional cylinders, a reduction of the output torque of the Internal combustion engine can be avoided by a torque counteracting this torque of the electric machine.
  • a reduction of the braking torque of the electric machine is advantageous, since the internal combustion engine is in an unstable operating state during the switch-off process and could be further destabilized by an additional application of load by the electric machine.
  • the excitation current of the electric machine and thus the braking torque of the electric machine can be increased, for example, to recover energy.
  • the excitation current under specification of a nominal voltage and / or a nominal current of the motor vehicle electrical system or under specification of a maximum current output, the maximum current output and / or the maximum excitation current, preferably according to operating conditions the internal combustion engine is parameterized, is regulated.
  • energizing current regulation which is based on a specification of the setpoint voltage or the nominal current of the motor vehicle electrical system, according to a target of a maximum torque to be delivered by the engine or a stabilization of the internal combustion engine, a braking torque-free running the electric machine, for example, in acceleration mode or when switching off be guaranteed at least one cylinder. Also, a recovery of energy in the presence of excess torque, for example in a push operation, is equally possible.
  • a regulation can also be regulated by regulating a maximum current to be delivered to the motor vehicle electrical system, wherein this maximum current can also be parameterized as a function of the respective operating states of the internal combustion engine.
  • Such a parameterization can either take place numerically, or be implemented by querying the parameters stored, for example, in a stored map.
  • a computing unit in particular a controller for an electrical machine, which is preferably arranged in the electrical machine, but can also be arranged externally to the electric machine, is for the determination of the operating states cylinder circuit and for a possible resulting control of Braking torque of the electric machine particularly advantageous since this method in a particularly simple manner, the inventive method is feasible.
  • the arithmetic unit is therefore configured accordingly to execute the method, which means that the arithmetic unit has a corresponding arithmetic processor and / or a corresponding data memory with a computer program stored on it and / or is set up by a corresponding integrated circuit to execute the method according to the invention ,
  • the execution of the method in a controller of the electric machine is also advantageous because both the evaluation of the signals, the
  • Determining the respective operating states and adjusting the electrical machine based on the determined operating conditions can be done without additional external communication connections and independent of an external computing, storage and / or control architecture.
  • Suitable data carriers for providing the computer program are, in particular, magnetic, optical and electrical memories, as are frequently known from the prior art.
  • FIG. 1 shows a schematic representation of an operating state-based control of an electric machine by a motor controller by means of a communication link according to the prior art
  • FIG. 1 shows an internal combustion engine and a coupled to the internal combustion engine according to the invention electrical machine in a schematic representation
  • FIG. 1 shows an internal combustion engine and a coupled to the internal combustion engine electric machine, according to a further embodiment in a schematic representation
  • FIG. 1 shows a control known from the prior art for regulating the voltage in a motor vehicle electrical system 10.
  • the motor vehicle electrical system 10 is fed by means of an electric machine 14 coupled to an internal combustion engine 12, wherein the electric machine 14 is driven by the internal combustion engine 12 by means of a coupling element 16, typically a belt drive.
  • a computing unit 18 is provided in the form of a regulator 20, which adjusts in accordance with the Bornetzposition 10, the exciter current of the electric machine accordingly.
  • the corresponding operating states of the internal combustion engine 12 are typically determined by a control device 22 assigned to the internal combustion engine 12, whereupon the control device 22 via a communication link 24, control signals to the controller 20 is transmitted to set an excitation current of the electric machine 14 according to the respective operating state of the internal combustion engine 12.
  • the controller 20 of the electric machine 14 is always passive with respect to a determination of the respective operating states of the internal combustion engine 12 and only configured to increase or to increase the exciter current of the electrical machine in accordance with the respective operating state on the basis of a control by the control device 22 reduce.
  • NK W is the rotational speed of the crankshaft 117 of the internal combustion engine 112 in revolutions per minute.
  • This non-uniform torque output generates a corresponding vibration behavior of the internal combustion engine 112.
  • the coupling element 116 in the form of a belt or a rigid connection of the electric machine 114 and the internal combustion engine 112 (not shown) the corresponding oscillation caused by the pulse-like torque output of the engine 112 is transmitted to the electric machine 114 and its rotational speed 122.
  • the electric machine 114 has the inventive calculating unit 118 in the form of a regulator 120, which is set up to determine a time profile of a rotational speed 122 from the phase signal 121 or from the signal of the rotational speed sensor 115b Course of the speed 122 analyzed and from the time course of the speed 122, a speed pattern 128 (see Figure 4) is derived.
  • the speed pattern 128 caused by the engine 112 is remarkable in particular by the fact that, as already mentioned above, this is a substantially periodic oscillation O, to which a frequency fmoment and amplitudes A can be assigned in a first approximation.
  • the oscillations O are superimposed on the mean value DMD of the rotational speed 122 (see FIG. 4).
  • the arithmetic unit 118 in the form of a controller 120 is also set up to determine the operating state of the cylinder circuit 128a of the internal combustion engine 112 on the basis of the speed pattern 128 derived from the time profile of the rotational speed 122 (see FIG. remote control unit 22, 122 would be required.
  • a corresponding external control device 122 may be provided with a corresponding communication link 124 to the controller 120 (shown in phantom), wherein a determination of a corresponding operating state of a cylinder 128a in the controller as a redundant determination of such operating state in the controller of the generator and thus can serve outside of the engine control unit, wherein the detection of such a state can in turn be used for further control strategies within the engine controller 122.
  • the electric machine 114 or the computing unit assigned to it is set up to carry out the method steps described above completely independently and autonomously from an external analysis and / or external control unit, such as a motor controller 122.
  • an external analysis and / or external control unit such as a motor controller 122.
  • the arithmetic unit has a corresponding computer processor R and / or a data memory D with a computer program stored thereon in order to carry out the method according to the invention.
  • the arithmetic unit can be equipped by means of an integrated circuit which is adapted to carry out the method (not shown).
  • FIG. 2 b describes a further exemplary embodiment similar to FIG. 2 a.
  • Identical or comparable features to FIG. 2a have been identified with the same reference number but with a further letter (b).
  • the electric machine 114b described here differs from the electrical machine 114 described in FIG. 2a, essentially by a further rotational speed sensor 115b, which is connected to the electric machine 114b.
  • the rotational speed sensor 115b is configured to detect the rotational speed of the rotor of the electric machine 114b and to transmit the rotational speed signal 122 determined therefrom to the regulator 118b.
  • the thus determined rotational speed 122 can thus, alternatively or cumulatively, also be used from the phase signal 121 of the electric machine (see FIGS. 2a and 3) to superimpose the time profile of the rotational speed 122 and the rotational speed signal 122 superimposed on it To detect speed pattern 128.
  • FIG. 2c an enlarged view of the electrical machine from FIG. 2b is shown.
  • the arithmetic unit 118b is set up to detect an operating state of the cylinder circuit 128a of the internal combustion engine 112 and to adapt an excitation current IE IT to the respective operating state of the cylinder circuit 128a of the internal combustion engine 112 based on the detected operating state 128a such that the braking torque or drag torque of the electric machine 112 is increased or increased is reduced.
  • a corresponding adjustment of the braking torque or drag torque of the electric machine 114b may be effected such that in the case of an increased torque request to the internal combustion engine 112 or in the state of a cylinder deactivation to reduce fuel consumption, a braking torque-free idling the electric machine 114b is made possible.
  • a braking torque-free idling the electric machine 114b is made possible.
  • another operating condition where excess torque is available by the engine 112 e.g. B.
  • such a regulation can also be regulated by regulation of a maximum current ⁇ 3 ⁇ to be delivered to the motor vehicle electrical system, wherein this maximum current ⁇ 3 ⁇ can in turn be parameterized depending on the respective operating state of the cylinder circuit or the specific states, cylinder activation or cylinder deactivation of the internal combustion engine 112.
  • a parameterization can either be done numerically, or be implemented by querying the parameters stored in a stored map (not shown).
  • the phase signal 121 is one of the phase voltages 121a, one of the stator windings arranged on the stator side in the electric machine 114. It is understood that for this purpose basically any phase voltage of one or more phases of the electric machine 114, but also the respective phase currents can be used to from the speed signal 122 of the electric machine 114, and the speed signal 122 and the speed pattern 128 of the coupled to this internal combustion engine 112 to determine (not shown). When using more than one phase voltage 121a, a correspondingly higher temporal resolution of the speed signal can be achieved (not shown).

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

Procédé de détermination de l'état d'activation des cylindres (128a) dans un moteur à combustion interne (112) au moyen d'une unité de commande, de préférence un régulateur (120) d'une machine électrique (114) couplée au moteur à combustion interne (112), présentant les étapes suivantes : détermination de la courbe temporelle d'un régime (122) d'une machine électrique (114) couplée au moteur à combustion interne (112), détermination, à partir de la courbe temporelle du régime (122), d'un modèle de régime (128) produit par le moteur à combustion interne (112), ledit modèle de régime (128) présentant une oscillation (O) superposée à la courbe temporelle de la valeur moyenne (DMD) du régime (122). L'état d'activation des cylindres (128a) du moteur à combustion interne (112) est déduit de la détection d'une modification caractéristique de l'oscillation (O), caractérisant l'état d'activation des cylindres (128a). L'invention concerne en outre une unité de calcul (118) correspondante conçue pour mettre en oeuvre ledit procédé, une machine électrique (114) comportant ladite unité de calcul (118) ainsi qu'un programme informatique correspondant pour commander la mise en oeuvre du procédé selon l'invention par l'unité de calcul (118) selon l'invention.
PCT/EP2017/070279 2016-09-01 2017-08-10 Détermination de l'état d'activation des cylindres d'un moteur à combustion interne WO2018041584A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201780053633.0A CN109642512A (zh) 2016-09-01 2017-08-10 内燃机的气缸启停的确定
EP17758447.1A EP3507478A1 (fr) 2016-09-01 2017-08-10 Détermination de l'état d'activation des cylindres d'un moteur à combustion interne

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016216517.8A DE102016216517A1 (de) 2016-09-01 2016-09-01 Ermitteln einer Zylinderbeschaltung einer Brennkraftmaschine
DE102016216517.8 2016-09-01

Publications (1)

Publication Number Publication Date
WO2018041584A1 true WO2018041584A1 (fr) 2018-03-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/070279 WO2018041584A1 (fr) 2016-09-01 2017-08-10 Détermination de l'état d'activation des cylindres d'un moteur à combustion interne

Country Status (4)

Country Link
EP (1) EP3507478A1 (fr)
CN (1) CN109642512A (fr)
DE (1) DE102016216517A1 (fr)
WO (1) WO2018041584A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111293951A (zh) * 2019-04-17 2020-06-16 天津深之蓝海洋设备科技有限公司 振动发生装置、振动发生方法和潜水器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113294258B (zh) * 2021-05-13 2023-02-17 上海新动力汽车科技股份有限公司 基于动态负荷的发动机恒转速控制方法

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DE3917978A1 (de) * 1989-06-02 1990-12-06 Bosch Gmbh Robert Verfahren zum messen von laufunruhe bei einer brennkraftmaschine und anwendung der verfahren
EP0560793A1 (en) * 1990-12-03 1993-09-22 Siemens Aktiengesellschaft Method of detecting irregular combustion in an engine cylinder
JPH08114146A (ja) * 1994-10-14 1996-05-07 Fuji Heavy Ind Ltd エンジンのアイドル制御弁用自己診断方法
DE19547832A1 (de) * 1995-12-21 1997-06-26 Grundig Emv Verfahren und Schaltungsanordnung zur Drehzahlermittlung eines mit einem Generator gekoppelten Verbrennungsmotors
DE102011003244A1 (de) * 2011-01-27 2012-08-02 Continental Aktiengesellschaft Erkennen von irregulären Verbrennungsvorgängen in einem Zylinder einer Brennkraftmaschine während einer Startphase der Brennkraftmaschine
DE102011115927A1 (de) * 2011-10-13 2013-04-18 Audi Ag Verfahren und Vorrichtung zum Erkennen von Drehzahl-/Drehmomentschwankungen in einer Antriebsvorrichtung
DE102012204751A1 (de) 2012-03-26 2013-09-26 Robert Bosch Gmbh Verfahren zur Überprüfung einer Erregerstrommessung einer Synchronmaschine im Generatorbetrieb
DE102013217968B3 (de) * 2013-09-09 2015-01-22 Robert Bosch Gmbh Phasenregelschleife, Generatorsteuereinrichtung und Verfahren zum Ansteuern eineselektrischen Antriebssystems eines Hybridfahrzeugs

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JP5808205B2 (ja) * 2011-09-07 2015-11-10 日産自動車株式会社 自動変速機のコーストダウンシフト制御装置
DE102011090149A1 (de) * 2011-12-30 2013-07-04 Robert Bosch Gmbh Verfahren zur Ansteuerung eines Organs im Luftzufuhrtrakt einer Brennkraftmaschine, insbesondere einer Drosselklappe

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Publication number Priority date Publication date Assignee Title
DE3917978A1 (de) * 1989-06-02 1990-12-06 Bosch Gmbh Robert Verfahren zum messen von laufunruhe bei einer brennkraftmaschine und anwendung der verfahren
EP0560793A1 (en) * 1990-12-03 1993-09-22 Siemens Aktiengesellschaft Method of detecting irregular combustion in an engine cylinder
JPH08114146A (ja) * 1994-10-14 1996-05-07 Fuji Heavy Ind Ltd エンジンのアイドル制御弁用自己診断方法
DE19547832A1 (de) * 1995-12-21 1997-06-26 Grundig Emv Verfahren und Schaltungsanordnung zur Drehzahlermittlung eines mit einem Generator gekoppelten Verbrennungsmotors
DE102011003244A1 (de) * 2011-01-27 2012-08-02 Continental Aktiengesellschaft Erkennen von irregulären Verbrennungsvorgängen in einem Zylinder einer Brennkraftmaschine während einer Startphase der Brennkraftmaschine
DE102011115927A1 (de) * 2011-10-13 2013-04-18 Audi Ag Verfahren und Vorrichtung zum Erkennen von Drehzahl-/Drehmomentschwankungen in einer Antriebsvorrichtung
DE102012204751A1 (de) 2012-03-26 2013-09-26 Robert Bosch Gmbh Verfahren zur Überprüfung einer Erregerstrommessung einer Synchronmaschine im Generatorbetrieb
DE102013217968B3 (de) * 2013-09-09 2015-01-22 Robert Bosch Gmbh Phasenregelschleife, Generatorsteuereinrichtung und Verfahren zum Ansteuern eineselektrischen Antriebssystems eines Hybridfahrzeugs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111293951A (zh) * 2019-04-17 2020-06-16 天津深之蓝海洋设备科技有限公司 振动发生装置、振动发生方法和潜水器

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CN109642512A (zh) 2019-04-16
EP3507478A1 (fr) 2019-07-10

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