EP1752656A2 - Anlassvorrichtung für Brennkraftmaschine, insbesondere für Dieselbrennkraftmaschine ohne Glühkerzen - Google Patents

Anlassvorrichtung für Brennkraftmaschine, insbesondere für Dieselbrennkraftmaschine ohne Glühkerzen Download PDF

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Publication number
EP1752656A2
EP1752656A2 EP06117406A EP06117406A EP1752656A2 EP 1752656 A2 EP1752656 A2 EP 1752656A2 EP 06117406 A EP06117406 A EP 06117406A EP 06117406 A EP06117406 A EP 06117406A EP 1752656 A2 EP1752656 A2 EP 1752656A2
Authority
EP
European Patent Office
Prior art keywords
voltage
engine
starter
temperature
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Withdrawn
Application number
EP06117406A
Other languages
English (en)
French (fr)
Other versions
EP1752656A3 (de
Inventor
Bertrand Gessier
Claudiu Vasilescu
Michaël Chemin
Laurent Albert
Benoit Dupeux
Philippe Colacicco
Nicolas Labbe
Yohan Comorassamy
Philippe Lutz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Equipements Electriques Moteur SAS
Original Assignee
Valeo Equipements Electriques Moteur SAS
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 Valeo Equipements Electriques Moteur SAS filed Critical Valeo Equipements Electriques Moteur SAS
Publication of EP1752656A2 publication Critical patent/EP1752656A2/de
Publication of EP1752656A3 publication Critical patent/EP1752656A3/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
    • 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
    • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
    • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
    • F02D41/065—Introducing corrections for particular operating conditions for engine starting or warming up for starting at hot start or restart
    • 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
    • F02N19/00—Starting aids for combustion engines, not otherwise provided for
    • F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
    • 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
    • F02N19/00—Starting aids for combustion engines, not otherwise provided for
    • F02N19/02—Aiding engine start by thermal means, e.g. using lighted wicks
    • F02N19/04—Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D2400/00—Control systems adapted for specific engine types; Special features of engine control systems not otherwise provided for; Power supply, connectors or cabling for engine control systems
    • F02D2400/16—Adaptation of engine control systems to a different battery voltages, e.g. for using high voltage 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
    • 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
    • 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
    • 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
    • F02N2300/00—Control related aspects of engine starting
    • F02N2300/10—Control related aspects of engine starting characterised by the control output, i.e. means or parameters used as a control output or target
    • F02N2300/102—Control of the starter motor speed; Control of the engine speed during cranking

Definitions

  • the internal combustion engine tends to be very unstable during the idle phase which causes a number of defects such as vibration, noise, etc. In some cases, the engine may stall.
  • This increase in compression due to the increase in speed can be explained, among other things, by a reduction in the leakage rates between the pistons and the cylinders and by a smaller heat exchange between the (hot) gases contained in the combustion chamber and the walls (cold) of this chamber and a quantity of air introduced into the upper cylinder related to an improvement of the filling efficiency when the speed increases.
  • This increase in the amount of air admitted also makes it possible to produce a higher engine torque during the start-up phase in order to overcome friction.
  • the work produced by the pressure increase related to combustion is directly related to the amount of fuel and air involved in the combustion. It will thus note an acceleration of the higher engine speed during the start-up phase related to this additional work produced with each combustion.
  • the compression ratio of the engine is advantageously less than 16.5.
  • the current compression ratio is about 17-18 for a diesel engine.
  • the invention particularly envisages using a conventional electric starter, that is to say a starter capable of operating at a given electrical voltage, for example 12 volts.
  • the voltage source that is boosted is a battery.
  • the primary voltage source is a first battery clean to deliver a nominal voltage of 12 volts, while the super capacitor is capable of delivering a voltage greater than 12 volts.
  • the electrical circuit comprises a DC-DC converter for recharging the boosted voltage source from the primary voltage source.
  • This converter can be reversible or not.
  • said circuit comprises a first voltage source, for delivering said nominal voltage, and a second voltage source as well as switching means for associating said voltage sources to obtain said boosted voltage.
  • a super capacitor of reduced size for example 300 Farads, is enough to ensure the phase last phase of the startup where a high speed is required to reach the required combustion temperature in the chambers. combustion, but for a relatively short time, for example 1 to 3 turns of crankshaft.
  • the pressure rise time of the injection rail is high.
  • the engine lubricating oil has performance lower than those observed when the engine is hot (water temperature around 80 ° C). This causes an increase in the resistive torque of the motor.
  • the starter system therefore drives the engine more slowly at low temperatures than when the engine is hot.
  • the tilting between the first and the second phase occurs when the pressure in the injection rail has exceeded a threshold sufficient to allow a first combustion in one of the cylinders to support the start. This makes it possible to conserve the energy at the beginning of the start where the rotation is still weak to use it when it becomes more important, thus saving energy.
  • the switching between the first phase and the second phase is done when the duration of the first training phase has exceeded a certain time.
  • This system is simple and allows you to start without having to know the pressure of the injection rail.
  • crankshaft 18 As indicated above, the fact of driving the crankshaft 18 to a higher rotational speed makes it possible to increase the compression of the intake air as well as the quantity of air admitted into the engine cylinders and, consequently, the temperature in the engine. the cylinders, which promotes cold engine starting.
  • closing the start contactor 46 controls the relay 48 which drives the starter control from the boosted voltage source 44, so 24 volts.
  • the circuit 28 thus makes it possible to supply the electric starter 22 with a voltage higher than the usual voltage, which enables it to have a higher rotational speed, as already indicated.
  • the voltages T1 and T2 are substantially constant, however a slight continuous drop of T and / or T2 can occur during startup due to the gradual discharge of the battery.
  • the starts controlled by the driver with the ignition key or the contact button are carried out with voltage T1 and T2 while the automatic restarts are performed either at a substantially constant voltage, or with voltage T1 and T2 where the duration of the preheating phase 0 is varied and the duration of the phase 1 of the starter T1 voltage according to the conditions as defined in the flowchart of Figures 7 and 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
EP06117406A 2005-07-19 2006-07-18 Anlassvorrichtung für Brennkraftmaschine, insbesondere für Dieselbrennkraftmaschine ohne Glühkerzen Withdrawn EP1752656A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0507638A FR2888891B1 (fr) 2005-07-19 2005-07-19 Dispositif de demarrage d'un moteur a combustion interne, en particulier d'un moteur diesel

Publications (2)

Publication Number Publication Date
EP1752656A2 true EP1752656A2 (de) 2007-02-14
EP1752656A3 EP1752656A3 (de) 2007-04-04

Family

ID=35985264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06117406A Withdrawn EP1752656A3 (de) 2005-07-19 2006-07-18 Anlassvorrichtung für Brennkraftmaschine, insbesondere für Dieselbrennkraftmaschine ohne Glühkerzen

Country Status (2)

Country Link
EP (1) EP1752656A3 (de)
FR (1) FR2888891B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008034958A1 (fr) * 2006-09-22 2008-03-27 Valeo Equipements Electriques Moteur Dispositif de demarrage d'un moteur a combustion interne, en particulier d'un moteur diesel
WO2009000389A1 (de) * 2007-06-26 2008-12-31 Daimler Ag Verfahren zum starten einer brennkraftmaschine
CN108035831A (zh) * 2017-11-28 2018-05-15 天津大学 一种适用高原高寒环境柴油机辅助冷启动装置及控制方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5894832A (en) * 1996-07-12 1999-04-20 Hitachi America, Ltd., Research And Development Division Cold start engine control apparatus and method
US5937814A (en) * 1996-07-24 1999-08-17 Beru Ruprecht Gmbh & Co. Kg Flame starting device for an internal combustion engine and process for operating the flame starting unit
US6109229A (en) * 1997-03-06 2000-08-29 Isad Electronics Systems Gmbh & Co. Kg Auxiliary starter unit for use with a diesel engine, and method for starting a diesel engine
US6202615B1 (en) * 1997-03-06 2001-03-20 Isad Electronic Systems, Gmbh & Co., Kg Methods and apparatus for starting an internal combustion engine
DE10021153C2 (de) * 2000-04-29 2002-05-02 Audi Ag Vorrichtung und Verfahren zum Starten eines Verbrennungsmotors
US20030139859A1 (en) * 2002-01-23 2003-07-24 Toyota Jidosha Kabushiki Kaisha Control apparatus for energy storage device in motor vehicle
FR2839119A1 (fr) * 2002-04-26 2003-10-31 Denso Corp Systeme de demarrage de moteur
EP1422416A1 (de) * 2002-11-23 2004-05-26 Robert Bosch Gmbh Brennkraftmaschine, sowie Verfahren zum Betreiben einer Brennkraftmaschine
US20040128981A1 (en) * 2002-10-18 2004-07-08 Jeremy Moore Method for reducing the exhaust emissions from an engine system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19646043A1 (de) * 1996-11-08 1998-05-14 Bosch Gmbh Robert Vorrichtung zur Spannungsversorgung
DE19918513C1 (de) * 1999-04-23 2000-11-02 Daimler Chrysler Ag Elektrische Antriebsanordnung für eine Brennkraftmaschine in einem Kraftfahrzeug
DE10029714A1 (de) * 2000-06-16 2001-12-20 Bosch Gmbh Robert Startervorrichtung für eine Verbrennungsmaschine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5894832A (en) * 1996-07-12 1999-04-20 Hitachi America, Ltd., Research And Development Division Cold start engine control apparatus and method
US5937814A (en) * 1996-07-24 1999-08-17 Beru Ruprecht Gmbh & Co. Kg Flame starting device for an internal combustion engine and process for operating the flame starting unit
US6109229A (en) * 1997-03-06 2000-08-29 Isad Electronics Systems Gmbh & Co. Kg Auxiliary starter unit for use with a diesel engine, and method for starting a diesel engine
US6202615B1 (en) * 1997-03-06 2001-03-20 Isad Electronic Systems, Gmbh & Co., Kg Methods and apparatus for starting an internal combustion engine
DE10021153C2 (de) * 2000-04-29 2002-05-02 Audi Ag Vorrichtung und Verfahren zum Starten eines Verbrennungsmotors
US20030139859A1 (en) * 2002-01-23 2003-07-24 Toyota Jidosha Kabushiki Kaisha Control apparatus for energy storage device in motor vehicle
FR2839119A1 (fr) * 2002-04-26 2003-10-31 Denso Corp Systeme de demarrage de moteur
US20040128981A1 (en) * 2002-10-18 2004-07-08 Jeremy Moore Method for reducing the exhaust emissions from an engine system
EP1422416A1 (de) * 2002-11-23 2004-05-26 Robert Bosch Gmbh Brennkraftmaschine, sowie Verfahren zum Betreiben einer Brennkraftmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BOLENZ K., ETC.: "Automotive Electric/Electronic Systems (2nd ediition)" 1995, ROBERT BOSCH GMBH , STUTTGARD , XP002372731 * pages 348-350 * *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008034958A1 (fr) * 2006-09-22 2008-03-27 Valeo Equipements Electriques Moteur Dispositif de demarrage d'un moteur a combustion interne, en particulier d'un moteur diesel
WO2009000389A1 (de) * 2007-06-26 2008-12-31 Daimler Ag Verfahren zum starten einer brennkraftmaschine
CN108035831A (zh) * 2017-11-28 2018-05-15 天津大学 一种适用高原高寒环境柴油机辅助冷启动装置及控制方法
CN108035831B (zh) * 2017-11-28 2019-05-17 天津大学 一种适用高原高寒环境柴油机辅助冷启动装置及控制方法

Also Published As

Publication number Publication date
FR2888891B1 (fr) 2010-09-17
FR2888891A1 (fr) 2007-01-26
EP1752656A3 (de) 2007-04-04

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