WO2015024738A1 - Machine à combustion interne équipée d'un compresseur à entraînement électrique - Google Patents

Machine à combustion interne équipée d'un compresseur à entraînement électrique Download PDF

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Publication number
WO2015024738A1
WO2015024738A1 PCT/EP2014/066148 EP2014066148W WO2015024738A1 WO 2015024738 A1 WO2015024738 A1 WO 2015024738A1 EP 2014066148 W EP2014066148 W EP 2014066148W WO 2015024738 A1 WO2015024738 A1 WO 2015024738A1
Authority
WO
WIPO (PCT)
Prior art keywords
energy storage
internal combustion
combustion engine
additional energy
electrically driven
Prior art date
Application number
PCT/EP2014/066148
Other languages
German (de)
English (en)
Inventor
Nils Lindenkamp
Michael FINDEISEN
Original Assignee
Volkswagen Aktiengesellschaft
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 Volkswagen Aktiengesellschaft filed Critical Volkswagen Aktiengesellschaft
Priority to EP14747564.4A priority Critical patent/EP3036415A1/fr
Publication of WO2015024738A1 publication Critical patent/WO2015024738A1/fr

Links

Classifications

    • 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
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/02—Drives of pumps; Varying pump drive gear ratio
    • F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
    • F02B39/10—Non-mechanical drives, e.g. fluid drives having variable gear ratio electric
    • 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
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/0862—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery
    • F02N11/0866—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery comprising several power sources, e.g. battery and capacitor or two batteries
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N7/00—Starting apparatus having fluid-driven auxiliary engines or apparatus
    • F02N7/08—Starting apparatus having fluid-driven auxiliary engines or apparatus the engines being of rotary type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
    • F02N2011/0877—Details of the switching means in starting circuits, e.g. relays or electronic switches said switch being used as a series-parallel switch, e.g. to switch circuit elements from series to parallel connection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N2011/0881—Components of the circuit not provided for by previous groups
    • F02N2011/0885—Capacitors, e.g. for additional power supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N2011/0881—Components of the circuit not provided for by previous groups
    • F02N2011/0888—DC/DC converters
    • 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
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates to an internal combustion engine with an electrically driven compressor, which is supplied from an electrical system with electrical energy.
  • exhaust gas turbochargers which consist of a turbine and a compressor connected thereto via a shaft.
  • the turbine is integrated into the exhaust system of the internal combustion engine and is thus flowed through by the exiting an internal combustion engine of the internal combustion engine exhaust gas, which is relaxed and transmits part of its flow energy to the turbine. This leads to a rotational movement of a rotor of the turbine, which is transmitted via a shaft to the compressor.
  • the compressor is in the charge air system of
  • Integrated internal combustion engine and ensures a compression of the internal combustion engine of the engine supplied charge air.
  • exhaust gas turbochargers require a sufficiently large exhaust gas mass flow for their function, without the relevant
  • an exhaust gas turbocharger with an electrically driven compressor.
  • the main advantage of an electrically driven compressor lies in the possibility of operating it independently of the respective operating state of the internal combustion engine. It can thus be provided to operate the electrically driven compressor with relatively high power in an operating state of the internal combustion engine in which it is operated with low load and low speeds and thus with a low exhaust gas flow. The electrically driven compressor can then due to the small Compensate exhaust gas mass flow existing power shortfall of the exhaust gas turbocharger.
  • a corresponding internal combustion engine is known for example from DE 101 59 801 A1.
  • DE 10 2007 029 479 A1 discloses an electrical system for a motor vehicle, comprising at least one starter for an internal combustion engine, a generator for generating electrical energy, a vehicle battery for supplying the starter with electrical energy for starting the internal combustion engine and one or more consumers, e.g. includes a car radio.
  • a starter for an internal combustion engine e.g. a generator for generating electrical energy
  • a vehicle battery for supplying the starter with electrical energy for starting the internal combustion engine
  • one or more consumers e.g. includes a car radio.
  • an auxiliary voltage source e.g. a relatively small accumulator or a capacitor integrated.
  • the consumers are briefly supplied by the auxiliary voltage source with electrical energy.
  • WO 2008/125552 A1 discloses a supercharged by means of an exhaust gas turbocharger
  • a hybrid vehicle or a motor vehicle with automatic start-stop system that the relatively frequently used starter of the internal combustion engine is powered by a first of the energy storage, wherein the voltage drop of the first energy storage occurring at the start by the temporary separation of the first energy storage of the Electrical system is kept away.
  • the present invention seeks to provide a way, an electrically driven compressor advantageously in a
  • a generic internal combustion engine with an electrically driven compressor which is supplied from an electrical system with electrical energy, according to the invention further developed in that the electrical system, a first subnet with a main energy storage, a generator and at least one consumer (e.g., multimedia system, seat heating,
  • Vehicle lighting, etc. as well as a separate from the first subnet or separable second subnet with at least one additional energy storage and an electrical Includes drive motor for the compressor, wherein the additional energy storage is, if necessary, integrated into the first subnet to charge this.
  • a “separation" of the two subnetwork means that a current flow caused by the main energy store and / or the generator is prevented by the drive motor for the compressor (and the additional energy storage, as long as it is not integrated into the first subnetwork) Also be provided that the drive motor for the compressor is temporarily electrically conductively integrated into the first subnet, a current flow through this but in another way, for example by deactivation of the drive motor, is prevented.
  • Main energy storage would go along.
  • the additional energy storage is temporarily integrated (in non-operation of the drive motor for the compressor) in the first subnet.
  • Additional energy storage no limitation in terms of performance (in particular capacity and operating voltage range) of these energy storage, especially not in relation to each other, deductible.
  • the main energy store may be a vehicle battery, which is usually used in vehicles for supplying the vehicle electrical system and in particular can provide an operating voltage of 12 or 24 volts.
  • the supplemental energy storage is preferably an energy storage capable of providing a high level of electrical power in the short term for at least a short period of time (e.g., ⁇ 1 second to about 4 seconds).
  • a short period of time e.g., ⁇ 1 second to about 4 seconds.
  • Additional energy storage one or more capacitors include.
  • motor vehicle provided a driving behavior that temporarily makes a very frequent and short successive use of the electrically driven compressor required (eg acceleration under (near) full load from a stand to a high speed of the motor vehicle), this can only be realized if the charging capacity of the additional energy storage is correspondingly large.
  • the maximum energy requirement for a is defined as the one-time use of the intermittently driven compressor and results from the (maximum) power of the compressor drive and the longest intended switch-on duration
  • Internal combustion engine and the size of the requested load jump to be dependent and stored in particular in an engine control of the internal combustion engine.
  • the dimensioning of the additional energy storage is in this case thus at a
  • a first additional energy storage and a second additional energy storage and a switching device are provided, wherein the
  • the additional energy storage at least (and particularly preferably substantially as exactly as possible) a maximum energy requirement corresponding
  • Compressor which is thereby supplied by the other additional energy storage with electrical energy. Since thus also in an operation of the internal combustion engine with frequent and short successive use of the electrically driven compressor largely continuous charging of the additional energy storage is achieved, they can be relatively small, ie in total smaller than a single additional energy storage, dimensioned. In addition, the number of charge-discharge cycles for each additional energy storage reduces (halves) compared to the use of a single additional energy storage, dimensioned. In addition, the number of charge-discharge cycles for each additional energy storage reduces (halves) compared to the use of a single
  • FIG. 1 shows an embodiment of an internal combustion engine according to the invention in one
  • FIG. 2 shows a schematic representation of a first embodiment of a vehicle electrical system for the internal combustion engine according to FIG. 1;
  • FIG. 3 shows a schematic representation of a second embodiment of a vehicle electrical system for the internal combustion engine according to FIG. 1 in a first switching position
  • FIG. 4 shows the vehicle electrical system according to FIG. 3 in a second switching position
  • FIG. 5 shows a schematic representation of a third embodiment of a vehicle electrical system for the internal combustion engine according to FIG. 1 in a first switching position
  • FIG. 6 shows a schematic representation of a fourth embodiment of a vehicle electrical system for the internal combustion engine according to FIG. 1 in a first switching position.
  • the engine shown greatly simplified in FIG. 1 comprises a
  • Internal combustion engine 10 which is shown here by way of example as an Otto reciprocating engine with three cylinders. Furthermore, the internal combustion engine comprises a fresh gas line, via which fresh gas is supplied to the internal combustion engine, and an exhaust line, via which the exhaust gas, which is obtained in the combustion of the fresh gas with fuel in the cylinders, is dissipated.
  • the internal combustion engine additionally comprises an exhaust gas turbocharger with a turbine 12 integrated into the exhaust gas line and a compressor 14 integrated in the fresh gas train. The flow through the turbine 12 by means of the exhaust gas causes a rotation of one
  • Turbinenraisingrads which is transmitted via a shaft 16 to a compressor impeller.
  • a throttling or closable bypass 18, a so-called wastegate a part of the exhaust gas can be passed to the turbine 12 in a known manner during operation of the internal combustion engine at or near full load.
  • a charge air cooler 20 arranged downstream of the compressor 14 of the exhaust gas turbocharger serves at least partially to reverse the heating of the fresh gas associated with the compression.
  • the internal combustion engine further comprises an electrically driven compressor 22, which is integrated in the present embodiment upstream of the compressor 14 of the exhaust gas turbocharger (and thus in series with this) in the fresh gas train, but can also be downstream or parallel thereto.
  • the electrically driven compressor 22 is inventively integrated into a vehicle electrical system 24 of a motor vehicle, not shown in the following, for driving the internal combustion engine is provided.
  • the electrical system is indicated in Fig. 1 only as an angular field.
  • the electrically driven compressor 22 is likewise designed to be bypassable by means of a restrictable or closable bypass 24. Thereby, a pressure drop of the fresh gas due to a flow through the compressor of the electrically driven compressor 22 is avoided, if this, as the longest time in the operation of the internal combustion engine, is not in operation.
  • FIG. 2 shows a first embodiment of such a vehicle electrical system 24.
  • This includes a first subnetwork, which in parallel a main energy storage 26 (the vehicle battery), a generator 28 which is driven by the internal combustion engine 10 to those for the operation of the motor vehicle To provide required electrical energy, and by way of example a single vehicle electrical system consumers 30 (eg, the lighting system, a fuel pump, an ignition system, etc.).
  • vehicles have a variety of
  • On-board network consumers (see Fig. 5 and 6) on.
  • the electrical system 24 of FIG. 2 includes a second subnetwork, which is also in
  • the additional energy storage 36 is designed as a supercapacitor.
  • the two subnetworks are interconnected by means of a so-called Q-diode 38.
  • the Q-diode 38 is designed such that a flow of current from the first subnet over the
  • Additional energy storage 36 is possible when the drive motor 34 of the electrically driven compressor 22 (and also the starter motor 32) is deactivated, i. E. is not in operation. As a result, the additional energy storage 36 can be charged by the generator 28 and possibly also the main energy storage 26. However, one is locked
  • the Q-diode 38 is designed such that it limits the amount of current during the charging of the additional energy storage 36.
  • FIG. 3 and 4 show a second embodiment of a vehicle electrical system 24, which can be used in an internal combustion engine according to the invention according to FIG. 1.
  • This differs from the vehicle electrical system 24 shown in FIG. 2 on the one hand in the integration of the starter motor 32 in the first subnetwork.
  • two additional energy storage 36 also supercapacitors
  • a switching device 40 in the form of a simple 2-way switch, the integration of the two additional energy storage 36 can be changed.
  • one of the additional energy storage 36 is practically always connected to the drive motor 34 of the electrically driven compressor 22 and, with the electrically driven compressor 22 activated, can provide the electrical energy required for its operation.
  • the other additional energy storage 36 is integrated into the first subnet, so that it can be charged, if it is not already fully charged.
  • Switching device 40 wherein the charging current is shown in solid line and the operating current for the drive motor 34 of the electrically driven compressor 22 with a dashed line.
  • a current limiter 42 is integrated into the first subnetwork, which serves to limit the charging current flowing in the first subnetwork via the additional energy store 36 integrated therein high voltage drop in the first subnet to avoid.
  • a current limiter 42 is particularly useful when using (super) capacitors as additional energy storage 36, since they can be charged in a very short time, which would be associated with correspondingly high charging currents.
  • Such a current limiter could of course also be used in the vehicle electrical system 24 according to FIG. 2 (or FIGS. 5 and 6) in the local first subnetwork.
  • the starter motor 32 could also be integrated into the second subnetwork.
  • FIG. 5 shows a third embodiment of a vehicle electrical system 24, which at a
  • inventive internal combustion engine according to FIG. 1 can be used. This differs from the vehicle electrical system 24 illustrated in FIGS. 3 and 4, in particular in the use of a switching device 40 which comprises a DC / DC converter 46 and a simple switch 48.
  • the DC / DC converter 46 has two outputs which are each connected to one of the two additional energy storage 36.
  • the drive motor 34 of the electrically driven compressor 22 is always connected via the switch 48 with the charged auxiliary energy storage 36, while the other additional energy storage 36 can be charged via the DC / DC converter 48 at the same time. By switching the switch 48, the integration of the two additional energy storage 36 can be exchanged in the two subnets.
  • FIG. 6 shows a fourth embodiment of a vehicle electrical system 24, which at a
  • inventive internal combustion engine according to FIG. 1 can be used. This differs from the vehicle electrical system 24 shown in FIG. 5, in particular in the use of a switching device 40 which comprises a semiconductor switch 50, for example a transistor, in particular a MOSFET, and two simple switches 48.
  • the semiconductor switch 50 is via one of the switches 48 with one of the two
  • Additional energy storage 36 are connected. This additional energy storage 36 can thus be loaded.
  • the drive motor 34 of the electrically driven compressor 22 is simultaneously over the other switch 48 with the other, charged

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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)
  • Supercharger (AREA)

Abstract

L'invention concerne une machine à combustion interne équipée d'un compresseur à entraînement électrique (22) alimenté en énergie électrique à partir d'un réseau de bord (24), caractérisée en ce que le réseau de bord (24) comprend une première partie de réseau qui contient un accumulateur d'énergie principal (26), un générateur (28) et au moins un dissipateur (30), ainsi qu'une deuxième partie de réseau, séparée ou séparable de la première partie de réseau, qui contient un accumulateur d'énergie d'appoint (36) et un moteur électrique (34) servant à entraîner le compresseur. Si nécessaire, l'accumulateur d'énergie d'appoint (36) peut être intégré dans la première partie de réseau afin de la recharger.
PCT/EP2014/066148 2013-08-20 2014-07-28 Machine à combustion interne équipée d'un compresseur à entraînement électrique WO2015024738A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14747564.4A EP3036415A1 (fr) 2013-08-20 2014-07-28 Machine à combustion interne équipée d'un compresseur à entraînement électrique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013216463.7A DE102013216463A1 (de) 2013-08-20 2013-08-20 Brennkraftmaschine mit einem elektrisch angetriebenen Verdichter
DE102013216463.7 2013-08-20

Publications (1)

Publication Number Publication Date
WO2015024738A1 true WO2015024738A1 (fr) 2015-02-26

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PCT/EP2014/066148 WO2015024738A1 (fr) 2013-08-20 2014-07-28 Machine à combustion interne équipée d'un compresseur à entraînement électrique

Country Status (3)

Country Link
EP (1) EP3036415A1 (fr)
DE (1) DE102013216463A1 (fr)
WO (1) WO2015024738A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018091555A1 (fr) * 2016-11-16 2018-05-24 Robert Bosch Gmbh Compresseur

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EP0397316A1 (fr) * 1989-05-10 1990-11-14 Isuzu Motors Limited Dispositif d'alimentation de puissance pour turbochargeur avec une machine électrique rotative
EP1376812A2 (fr) * 2002-06-25 2004-01-02 Robert Bosch Gmbh Réseau d'énergie pour l'alimentation de consommeurs de haute puissance
DE102004028713A1 (de) * 2003-06-16 2005-02-10 Denso Corp., Kariya Leistungssteuersystem für ein Fahrzeug, in welchem ein Verbrennungsmotor mit Lader montiert ist
US20070151241A1 (en) * 2005-12-29 2007-07-05 Honeywell Electric boost compressor and turbine generator system
DE102010054332A1 (de) * 2010-01-15 2011-07-21 Mitsubishi Electric Corporation Energiequellen-Steuereinheit eines elektrischen Aufladers
US20120161690A1 (en) * 2010-12-24 2012-06-28 Marc Henness Electrical circuit for controlling electrical power to drive an inductive load
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EP1376812A2 (fr) * 2002-06-25 2004-01-02 Robert Bosch Gmbh Réseau d'énergie pour l'alimentation de consommeurs de haute puissance
DE102004028713A1 (de) * 2003-06-16 2005-02-10 Denso Corp., Kariya Leistungssteuersystem für ein Fahrzeug, in welchem ein Verbrennungsmotor mit Lader montiert ist
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US20120161690A1 (en) * 2010-12-24 2012-06-28 Marc Henness Electrical circuit for controlling electrical power to drive an inductive load
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EP3036415A1 (fr) 2016-06-29
DE102013216463A1 (de) 2015-02-26

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