EP1106824A1 - Méthode et dispositif de démarrage d'un moteur à combustion interne muni d'un démarreur s'adaptant au couple d'entraínement du moteur - Google Patents

Méthode et dispositif de démarrage d'un moteur à combustion interne muni d'un démarreur s'adaptant au couple d'entraínement du moteur Download PDF

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Publication number
EP1106824A1
EP1106824A1 EP00310669A EP00310669A EP1106824A1 EP 1106824 A1 EP1106824 A1 EP 1106824A1 EP 00310669 A EP00310669 A EP 00310669A EP 00310669 A EP00310669 A EP 00310669A EP 1106824 A1 EP1106824 A1 EP 1106824A1
Authority
EP
European Patent Office
Prior art keywords
engine
starter
torque
alternator
starting
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Withdrawn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
EP00310669A
Other languages
German (de)
English (en)
Inventor
Gurinder Singh Kahlon
Ning Liu
Robert Joseph Mohan
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.)
Visteon Global Technologies Inc
Original Assignee
Visteon Global Technologies Inc
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 Visteon Global Technologies Inc filed Critical Visteon Global Technologies Inc
Publication of EP1106824A1 publication Critical patent/EP1106824A1/fr
Withdrawn legal-status Critical Current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 specially adapted for starting of engines
    • F02N11/0862—Circuits specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery
    • F02N11/0866—Circuits 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
    • F02N11/04—Starting of engines by means of electric motors the motors being associated with current generators
    • 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 specially adapted for starting of engines
    • F02N11/0814—Circuits specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
    • 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 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 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
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits specially adapted for starting of engines
    • F02N2011/0881—Components of the circuit not provided for by previous groups
    • F02N2011/0896—Inverters for electric machines, e.g. starter-generators
    • 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
    • F02N2300/104—Control of the starter motor torque

Definitions

  • the present invention relates generally to internal combustion engines for automotive vehicles, and more specifically, to an automotive vehicle having a starter/alternator coupled to the engine.
  • Automotive vehicles with internal combustion engines are typically provided with both a starter motor and alternator.
  • a combined alternator and starter motor has been proposed.
  • Such systems have a rotor mounted directly to the crankshaft of the engine and a stator sandwiched between the engine block and the bell housing of the transmission.
  • the starter/alternator functions as a starter. While functioning as a starter, the starter/alternator provides a sufficient amount of starting torque to rotate the crankshaft of the engine before the cylinders are fired. After the engine is fired, an amount of engine torque is provided to the crankshaft from the combustion process in the cylinders. There is a finite amount of time in which both starting torque and engine torque act on the crankshaft. If the differential amount of torques is excessive, the engine may appear as rough running. If a significant torque differential is generated damage to engine components such as the crankshaft may occur.
  • the starter/alternator is used as a generator to charge the electrical system of the vehicle.
  • the engine may be shut down during stops (e.g., red lights). When the accelerator is depressed the engine will resume firing. Thus, many startups would occur over the course of a trip. Acceleration in such systems is inherently low absent intervention since torque levels upon startup is low.
  • an internal combustion engine has a starter coupled to the crankshaft of the engine.
  • the engine has a predetermined operating torque curve method of controlling the starting of the engine, said method comprising the steps of:
  • a system for an automotive vehicle is coupled to an internal combustion engine with a crankshaft and a torque curve.
  • the system has a starter coupled to the crankshaft.
  • a controller is coupled to the starter for initiating the rotation of the crankshaft to a predetermined torque corresponding to the torque curve.
  • the controller controls the starting of the engine upon the starter reaching a predetermined torque and speed on the torque curve.
  • One advantage is that the present invention is suitable for starting the engine at a higher torque so that more rapid acceleration may be obtained.
  • an automotive vehicle 10 having an internal combustion engine 12 with cylinders 14 with pistons 16 located therein.
  • Each cylinder 14 is coupled to a fuel pump 18 through fuel lines and a fuel injector (not shown) or other fuel delivery system.
  • Each cylinder 14 also has a spark plug 20 or other ignition source coupled to a powertrain control unit.
  • a powertrain control unit 22 controls the ignition timing and fuel pump operation 18 in a conventional manner subject to the improvements of the present invention.
  • Engine 12 is coupled to a transmission 26.
  • Transmission 26 may be automatic or manual.
  • Transmission 26 is coupled to a differential 28 to drive an axle 30 to provide power to wheels 32.
  • a starter/alternator system 40 that includes a starter/alternator 42 and its associated control electronics is coupled to engine 12.
  • starter/alternator 42 is positioned between a housing 44 of transmission 26 and the engine 12.
  • Starter/alternator 42 has a stator fixedly attached to bell housing 44 and a rotor 48 coupled to a crankshaft 50 of engine 12.
  • a clutch 52 is used to engage and disengage engine 12 from transmission 26.
  • starter/alternator 42 is used as a starter during engine startup and as an alternator (generator) to supply power to recharge the batteries of the vehicle.
  • Clutch 52 allows starter/alternator 42 to start the engine prior to engagement with the transmission 26.
  • Crankshaft 50 has a sensor coupled thereto to determine the relative speed of the crankshaft.
  • the torque of the engine may be derived from the crankshaft speed.
  • Those skilled in the art would recognize various methods for determining crankshaft speeds including monitoring signals of the ignition system.
  • Starter/alternator system 40 has a system controller 54 that is coupled to powertrain control unit 22 and to a power inverter 56.
  • the power inverter 56 and system controller 54 may in practice be contained in a single package.
  • the inverter 56 is used to convert DC power to AC power in the startup mode and AC power to DC power in power generation mode as will be further described below.
  • Power inverter 56 is coupled to an energy storage device 58 such as an ultra capacitor, a first DC to DC converter 60, and a second DC to DC converter 62.
  • DC to DC converter 60 is coupled to a 36 volt battery 64.
  • DC to DC converter 62 is coupled to a 12 volt battery 66.
  • the actual battery voltage is dependent on the particular system to which it is attached.
  • a torque curve 70 and a power curve 72 for an engine are illustrated.
  • the engine operates at a predetermined torque based on the engine design for various engine speeds.
  • the engine speed is commonly the speed of rotation of the crankshaft.
  • the present invention is particularly applicable to systems in which the engine is completely shut down when the vehicle is at rest, such as at a stop light.
  • the starter/alternator may be used to increase the amount of torque to help the vehicle accelerate more rapidly.
  • the starter/alternator 42 has a controllable torque.
  • the crankshaft 50 of engine 12 is rotated to a predetermined speed and with a predetermined torque to substantially match the torque of the engine at startup.
  • the inverter 56 of starter/alternator system 40 is capable of substantially matching the torque output curve of the engine.
  • the starting process of engine 12 is initiated by a key placed in the ignition position or the depression of the accelerator pedal (not shown).
  • Thirty-six volt battery 64 provides electrical power for starter/alternator 42 that is stepped up to 300 volts by DC to DC converter 60. The 300 volts is used to charge energy storage 58.
  • Inverter 56 converts the DC power to three-phase AC power.
  • the AC power is supplied to the stator 46 of starter/alternator 42.
  • the starter/alternator 42 rotates rotor 48 which in turn rotates crankshaft 50 of engine 12.
  • the starter/alternator 42 has a predetermined torque that is controlled by system controller 54.
  • the engine 12 When the rotor of the starter/alternator and thus the engine crankshaft reaches a predetermined torque, the engine 12 is started by supplying fuel through fuel pump 16 and controlling the spark timing through spark plugs 20 through powertrain control unit 22. Thus, as the engine is started, the desired torque and speed of engine 12 may be matched. The speed of crankshaft 50 may be measured directly by using sensor 53 or indirectly through the ignition system. Thus, upon rotor 80 reaching a sufficient torque, the controller 54 triggers the starting of the combustion process in the engine.
  • the starter/alternator 42 may be used to assist the engine to attain a desired torque upon startup. By increasing torque, immediate acceleration of the vehicle is increased.
  • the starter/alternator 42 is used in a generating mode.
  • the energy storage device 58, and batteries 64, 66 are monitored to determine whether they are fully charged. If the energy storage sources drop below a predetermined charge range, three-phase power from starter/alternator 42 is converted to 300 volts DC by power inverter 56.
  • DC to DC converters 60, 62 are used to convert the 300 volts DC to 42 volts and 14 volts respectively. It should be noted that the ultra capacitors of energy storage 58 are charged directly by power converter 56.

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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)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
EP00310669A 1999-12-07 2000-12-01 Méthode et dispositif de démarrage d'un moteur à combustion interne muni d'un démarreur s'adaptant au couple d'entraínement du moteur Withdrawn EP1106824A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US455687 1989-12-22
US45568799A 1999-12-07 1999-12-07

Publications (1)

Publication Number Publication Date
EP1106824A1 true EP1106824A1 (fr) 2001-06-13

Family

ID=23809863

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00310669A Withdrawn EP1106824A1 (fr) 1999-12-07 2000-12-01 Méthode et dispositif de démarrage d'un moteur à combustion interne muni d'un démarreur s'adaptant au couple d'entraínement du moteur

Country Status (2)

Country Link
EP (1) EP1106824A1 (fr)
JP (1) JP2001165021A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2371425A (en) * 2000-09-21 2002-07-24 Ford Global Tech Inc Starter/alternator control system
GB2388261A (en) * 2002-01-31 2003-11-05 Visteon Global Tech Inc Integrated starter alternator prevents engine stall
EP1221553A3 (fr) * 2001-01-08 2005-04-27 Robert Bosch Gmbh Méthode de commande du couple et de la puissance au démarrage d'un moteur à combustion interne
FR2928503A1 (fr) * 2008-03-04 2009-09-11 Peugeot Citroen Automobiles Sa Vehicule automobile et procede d'alimentation d'une machine electrique tournante reversible.
EP1750008A3 (fr) * 2005-08-05 2010-08-25 Nissan Motor Co., Ltd. Système et procédé pour démarrage d'un moteur à combustion interne
WO2013131680A1 (fr) * 2012-03-05 2013-09-12 Robert Bosch Gmbh Procédé de préparation du démarrage d'un moteur à combustion interne par un démarreur-dynamo à transmission par courroie

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5818116A (en) * 1995-12-12 1998-10-06 Toyota Jidosha Kabushiki Kaisha Starting control apparatus for internal combustion engine and method of the same
EP0903492A2 (fr) * 1997-09-17 1999-03-24 Toyota Jidosha Kabushiki Kaisha Dispositif de régulation du démarrage pour moteur à combustion interne

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5818116A (en) * 1995-12-12 1998-10-06 Toyota Jidosha Kabushiki Kaisha Starting control apparatus for internal combustion engine and method of the same
EP0903492A2 (fr) * 1997-09-17 1999-03-24 Toyota Jidosha Kabushiki Kaisha Dispositif de régulation du démarrage pour moteur à combustion interne

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2371425A (en) * 2000-09-21 2002-07-24 Ford Global Tech Inc Starter/alternator control system
GB2371425B (en) * 2000-09-21 2004-08-11 Ford Global Tech Inc Starter/alternator control system
EP1221553A3 (fr) * 2001-01-08 2005-04-27 Robert Bosch Gmbh Méthode de commande du couple et de la puissance au démarrage d'un moteur à combustion interne
GB2388261A (en) * 2002-01-31 2003-11-05 Visteon Global Tech Inc Integrated starter alternator prevents engine stall
GB2388261B (en) * 2002-01-31 2004-05-05 Visteon Global Tech Inc Use of integrated starter alternator to prevent engine stall
US6962135B2 (en) 2002-01-31 2005-11-08 Visteon Global Technologies, Inc. Use of integrated starter alternator to prevent engine stall
EP1750008A3 (fr) * 2005-08-05 2010-08-25 Nissan Motor Co., Ltd. Système et procédé pour démarrage d'un moteur à combustion interne
FR2928503A1 (fr) * 2008-03-04 2009-09-11 Peugeot Citroen Automobiles Sa Vehicule automobile et procede d'alimentation d'une machine electrique tournante reversible.
WO2013131680A1 (fr) * 2012-03-05 2013-09-12 Robert Bosch Gmbh Procédé de préparation du démarrage d'un moteur à combustion interne par un démarreur-dynamo à transmission par courroie

Also Published As

Publication number Publication date
JP2001165021A (ja) 2001-06-19

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