EP2148084A2 - Procédé et commande de démarrage destinés au démarrage d'un moteur à combustion à l'aide d'un démarreur - Google Patents

Procédé et commande de démarrage destinés au démarrage d'un moteur à combustion à l'aide d'un démarreur Download PDF

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Publication number
EP2148084A2
EP2148084A2 EP20090100294 EP09100294A EP2148084A2 EP 2148084 A2 EP2148084 A2 EP 2148084A2 EP 20090100294 EP20090100294 EP 20090100294 EP 09100294 A EP09100294 A EP 09100294A EP 2148084 A2 EP2148084 A2 EP 2148084A2
Authority
EP
European Patent Office
Prior art keywords
starter
control
voltage
current
electrical system
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Withdrawn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
EP20090100294
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German (de)
English (en)
Inventor
Juergen Gross
Michael Merkle
Marcus Abele
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.)
Robert Bosch GmbH
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
Publication of EP2148084A2 publication Critical patent/EP2148084A2/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Withdrawn legal-status Critical Current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 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
    • F02N11/0859—Circuits or control means specially adapted for starting of engines specially adapted to the type of the starter motor or integrated into it
    • 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
    • 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
    • F02N2300/106—Control of starter current

Definitions

  • the invention further relates to a vehicle electrical system module device for a motor vehicle with a DC / DC converter, a controller for a multi-voltage generator and an electrical energy store with a high voltage.
  • the starter is conventionally designed as a direct current machine and is directly connected to the battery with a voltage between 12 and 14 V, depending on the state of charge.
  • the starter is manually operated by a simple switch by means of a control relay either by turning the ignition key controlled or electronically by a start button control.
  • start-stop and recuperation systems are known from hybrid vehicles, which include at least one multi-voltage generator, double-layer capacitors (DLC) and a DC / DC converter (DC / DC converter).
  • the starter is an electric machine that can also work as a generator and can be used as an integrated starter generator.
  • the integrated starter generator is in a subnet with a higher voltage z. B. 14 - 32 V for motor vehicles and 14 - 42 V arranged for commercial vehicles.
  • Such a multi-voltage electrical system for example, in the DE 103 30 703 A1 described.
  • the following prior art is known.
  • the object is achieved by means of a starter control for a starter for starting an internal combustion engine in a vehicle in that the starter control comprises a current control device with which the starter current can be regulated by a defined current value.
  • the starter control comprises a current control device with which the starter current can be regulated by a defined current value.
  • the starting speed of the internal combustion engine at a start-stop operation with energization of the starter to a defined current value over a longer period in the starting process improves because the power strokes are achieved earlier with top dead centers in the engine by a faster crank movement.
  • the starter current is clocked by the starter control of the starter, so that the starter is operated by a defined current value during the starting process.
  • the starter current drives the starter in the first fractions of a second in the starting process, for example, with a nearly constant current value between 400 and 600 amperes. By reducing the starter current, the wear on the brushes and on the commutator decreases. The noise of the starter is also lower.
  • the starter current is passed clocked to the starter, so that the starter current is operated within a tolerance band by the predetermined current value. If the current consumption of the starter exceeds a specified current value of the tolerance band, then the timing starts to interrupt the current. If a current drop at the lower threshold of the tolerance band is detected at the starter current, the interruption is canceled and the starter is re-energized.
  • the starter is defined by the starter control with a variable adjustable starter voltage defined.
  • the voltage at the starter can thus be significantly higher than the usual battery voltage of 12 to 14 V.
  • the power output for starting the starter is regulated by means of the starter control from at least two energy stores, in particular technically differently constructed energy stores, particularly preferably a battery and / or at least a capacitor, taken.
  • the starter control can thus control the electrical energy of two different energy stores and supply them to the starter.
  • the starter control decides depending on the state of charge from which energy storage electrical energy is removed. For example, the one energy storage of the battery with a voltage between 12 and 14 V and the second energy storage at least one capacitor, more preferably a double-layer capacitor with a voltage of, for example, up to 42 V. Should the capacitor have sufficient electrical energy to use the starter to start the engine, the starter control will only discharge the capacitor.
  • the charge states and the temperatures are different in a warm start, as in a cold start, so that the required amount of electrical energy is different.
  • the starter control can be formed by exclusively electronic components.
  • the starter control preferably has a microprocessor with a program memory.
  • the current control device in the starter control comprises a DC / DC converter.
  • the object is achieved by an electrical system in that at least one third independent, variable subnet is designed to control at least one consumer and / or energy storage. Because of that Starter can be switched as a consumer in a third independent variable subnet, the starter can be used efficiently, it can voltage dips are avoided and the starter can be from both an energy storage of a high voltage ie greater than 14 volts and an energy storage with a between 12 and 14 V can be variably and combined fed with electrical energy. Thus, the power loss of a vehicle electrical system is reduced, since the electrical energy can be highly efficient as a high voltage in energy storage, such as double-layer capacitors buffered for a certain time.
  • At least one fourth independent subnetwork is formed with at least one consumer and / or energy store.
  • a double-layer capacitor can be embodied as a separate energy store with a greater voltage or high voltage in an independent subnetwork and a controller can supply energy from both the fourth subnetwork and the first subnetwork to at least one consumer in the third or first subnetwork can.
  • the battery is designed for a low-voltage power grid in the first sub-network and a consumer for low-voltage in a fifth sub-network.
  • the DC / DC converter can take over the function of delivering a variable voltage to the starter to increase the starter power, with the starter current defined by a given current value is regulated, thereby accelerating the crankshaft of an internal combustion engine performs faster in time, so that the ignitable top dead center (TDC) in cylinders of the internal combustion engine are reached earlier than a conventional starter without a regulated ie an unregulated starter current.
  • the starter and the at least one energy storage are less burdened by the defined control of the starter current than in a conventional manner.
  • the lifetime of both components increases.
  • the DC / DC converter only needs to be slightly modified and extended to control the starter current.
  • Essential parts of the DC / DC converter can be advantageously used both for controlling the starter current and for regulating charging currents for at least one energy store in this dual function.
  • the method according to the invention can likewise be used advantageously in a hybrid vehicle in which, for example, the starter and the multi-voltage generator are designed as an electric machine.
  • the Fig. 1 shows schematically and abstracted the electrical circuit diagram of a starter 1 for starting an internal combustion engine 5.
  • the starter 1 is powered by a battery 2 and is switched on and off by a switch 3.
  • the switch 3 is a button in conventional vehicles, which is installed in the ignition and is operated by turning the ignition key to ignition.
  • the pushbutton 3 can activate a starter control 4 and be designed, for example, as a separate start button.
  • the starter control 4 has a current regulating device with which a starter current I can be regulated by a defined current value I W.
  • a starter current I can be regulated by a defined current value I W.
  • the Fig. 2 shows a schematic circuit diagram of a vehicle electrical system according to the invention 7 with a vehicle electrical system module device 8.
  • the electrical system module device 8 can also be referred to as a vehicle electrical system management module that supplies electrical energy consumers from energy storage and electrical energy from at least one electric generator in the energy storage again supplies.
  • the electrical system 7 has a first sub-network 9 with a constant voltage of 12 to about 14 volts, which depends on the state of charge of a battery 2. In the electrical system 7, a plurality of consumers are arranged. In the first subnet 9, consumers 16 are connected in parallel with the battery 2, which are designed for a constant, low voltage between 12 and 14 volts.
  • the electrical system 7 comprises a second subnetwork 10 which is provided for a variable voltage, greater than 14 volts. The voltage is generated by a multi-voltage generator 11, also called multi-voltage generator.
  • the onboard power supply module device 8 comprises a DC / DC converter 6, which converts the variable voltage of over 14 volts to the constant voltage of the first subnet 9.
  • the starter 1 is connected in a third subnetwork 12. This has the advantage that the starter 1 can be operated both with a constant voltage of up to 14 volts from the battery 2 from the first subnet 9, as well as the energy with a higher voltage from a capacitor, in particular a double-layer capacitor (DLC ) 13, which is connected in a fourth subnetwork 12 to the electrical system module device 8.
  • the DC / DC converter 6 with an extended circuit has the additional advantageous function of how to Fig. 1 described, integrated starter control 4 represent.
  • the electrical system module device 8 also has interfaces 15 in order to process signals in the form of information about temperatures and state variables of components, such as the crankshaft speed, and accordingly to take over the regulation of the charge states but also the control of the starter 1.
  • the electrical system module device 8 is thus informed via the interface 15, which may be, for example, a bus interface such as LIN or CAN or the terminal 50, whether the starter 1 must perform a cold start, because the vehicle was parked for a long time or if a warm start is imminent because a start-stop operating strategy has been executed.
  • the supply of the starter current I can be adjusted and different. In a memory stored characteristics support the control of the starter current I.
  • On-board network module device 8 also assumes the task of estimating the state of charge, the performance and the aging of the energy store, on the basis of measured variables of current I, voltage U on double-layer capacitor 13 and battery 2 and with the aid of a temperature measurement. Thus, the control of consumers and energy storage in the at least four different subnets can be efficiently implemented.
  • the life of the starter 1 is extended, since the starter 1 is applied during start-up of the starter 1 with a lower average starting current and lower pulse-shaped mechanical loads. Therefore, the starter 1 can be less expensive, simpler and possibly smaller.
  • the third subnetwork 12 with the starter 1 is decoupled from the first subnetwork 9, on which the consumer 16 is arranged with a constant low voltage of the battery 2, by the installation and interposition of the DC / DC converter 6 in the onboard power supply module device 8. Thus, even with frequent start-stop operating strategies, the driver no longer recognizes voltage dips.
  • a multi-voltage generator 11 over a high variable voltage range, for example between 14 to 42 volts and more and at least one double-layer capacitor 13 or similar high-performance capacitors Rekuperationspotential over conventional wiring systems with a conventional generator in a significantly smaller and constant voltage range is significantly improved.
  • the efficiency of the multi-voltage generator is significantly increased to over 80%.
  • Another advantage is that the battery 2 is reduced in the electrical system 7 by the controlled start of the starter 1 and the reduced starter currents I in size compared to conventional automotive electrical systems, since a battery 2 conventionally to the requirements of a start of the engine at low temperatures is designed and usually has to provide a correspondingly large starter current.
  • the life of the battery 2 is significantly extended by supporting at least one double-layer capacitor 13, since the battery 2 is exposed to a much lower load.
  • the starter current I Due to the starter control 4, which is integrated in the electrical system module device 8, the starter current I by a defined current value I W , for example, at 600 amps, on the first ignitable dead center, 1st TDC at least until shortly after the second upper ignitable dead center, 2nd OT, the internal combustion engine 5 regulated.
  • This is represented by the time-current characteristic E with a solid solid line.
  • the starter current I is clocked to control the current value of 600 amps.
  • a current I is supplied to the starter 1 in a certain bandwidth around the current value I W to be regulated.
  • the time-current characteristic curve By changing the time-current characteristic curve from H to E, an increased power can be achieved from the starter 1, which is represented by the hatched area 18 between the characteristic curves E and H.
  • the starter 1 thus has a higher torque and reaches the first and second and all other top dead centers 1 OT, 2 OT of the internal combustion engine 5 earlier.
  • emissions are reduced because a shorter start-up time avoids stopping and hindering other traffic.
  • the time-current characteristic E can be realized on the basis of the DC / DC converter 6, which can supply the current I with a higher voltage in the starter 1.
  • the energy is supplied exclusively from the battery 2 to the starter 1 when, for example, the vehicle has been switched off for a longer time and the double-layer capacitor 13 has not yet been 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)
  • Combined Controls Of Internal Combustion Engines (AREA)
EP20090100294 2008-07-24 2009-05-26 Procédé et commande de démarrage destinés au démarrage d'un moteur à combustion à l'aide d'un démarreur Withdrawn EP2148084A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810040681 DE102008040681A1 (de) 2008-07-24 2008-07-24 Verfahren und Startersteuerung zum Starten einer Brennkraftmaschine mittels eines Starters

Publications (1)

Publication Number Publication Date
EP2148084A2 true EP2148084A2 (fr) 2010-01-27

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EP20090100294 Withdrawn EP2148084A2 (fr) 2008-07-24 2009-05-26 Procédé et commande de démarrage destinés au démarrage d'un moteur à combustion à l'aide d'un démarreur

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EP (1) EP2148084A2 (fr)
DE (1) DE102008040681A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012016770A1 (fr) * 2010-08-04 2012-02-09 Robert Bosch Gmbh Procédé et dispositif de commande pour faire fonctionner un démarreur d'un véhicule
DE102010042050A1 (de) 2010-10-06 2012-04-12 Robert Bosch Gmbh Verfahren zum Betreiben einer elektrischen Maschine
WO2012052273A3 (fr) * 2010-10-22 2012-12-27 Robert Bosch Gmbh Procédé et dispositif de démarrage d'un moteur à combustion interne et dispositif commutateur sélecteur
EP2648330A1 (fr) * 2012-04-05 2013-10-09 Valeo Equipements Electriques Moteur Procédé de commande d'un démarreur de moteur thermique de véhicule automobile, dispositif de commande et démarreur correspondants
EP2647830A1 (fr) * 2012-04-05 2013-10-09 Valeo Equipements Electriques Moteur Dispositif de commande d'un démarreur d'un moteur thermique de véhicule automobile, et démarreur correspondant
FR2992788A1 (fr) * 2012-06-28 2014-01-03 Peugeot Citroen Automobiles Sa Procede et dispositif de controle d'un producteur d'energie electrique et de moyens de stockage d'energie electrique d'un systeme, par pilotage de leurs consignes de courant

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010043091A1 (de) * 2010-10-29 2012-05-03 Robert Bosch Gmbh Steuerungsvorschaltmodul und Verfahren zum Betreiben eines Starters eines Fahrzeugs
DE102015208542A1 (de) * 2015-05-07 2016-09-08 Continental Automotive Gmbh Versorgungseinrichtung für ein Bordnetz und Bordnetz mit Versorgungseinrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4138943C1 (fr) 1991-11-27 1993-05-27 Robert Bosch Gmbh, 7000 Stuttgart, De
DE10330703A1 (de) 2003-07-08 2005-01-27 Robert Bosch Gmbh Mehrspannungs-Bordnetz mit einem Mehrspannungsgeneratormotor
DE10231517B4 (de) 2002-07-12 2005-02-17 Audi Ag Bordnetz für ein Kraftfahrzeug
DE102005051433A1 (de) 2005-10-27 2007-05-03 Bayerische Motoren Werke Ag Verfahren und Vorrichtung zur Regelung eines Generators in einem Zwei-Spannungs-Bordnetz eines Kraftfahrzeuges

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4138943C1 (fr) 1991-11-27 1993-05-27 Robert Bosch Gmbh, 7000 Stuttgart, De
DE10231517B4 (de) 2002-07-12 2005-02-17 Audi Ag Bordnetz für ein Kraftfahrzeug
DE10330703A1 (de) 2003-07-08 2005-01-27 Robert Bosch Gmbh Mehrspannungs-Bordnetz mit einem Mehrspannungsgeneratormotor
DE102005051433A1 (de) 2005-10-27 2007-05-03 Bayerische Motoren Werke Ag Verfahren und Vorrichtung zur Regelung eines Generators in einem Zwei-Spannungs-Bordnetz eines Kraftfahrzeuges

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012016770A1 (fr) * 2010-08-04 2012-02-09 Robert Bosch Gmbh Procédé et dispositif de commande pour faire fonctionner un démarreur d'un véhicule
DE102010042050A1 (de) 2010-10-06 2012-04-12 Robert Bosch Gmbh Verfahren zum Betreiben einer elektrischen Maschine
WO2012045506A1 (fr) 2010-10-06 2012-04-12 Robert Bosch Gmbh Procédé pour faire fonctionner une machine électrique
US9083269B2 (en) 2010-10-06 2015-07-14 Robert Bosch Gmbh Method for operating an electric machine
WO2012052273A3 (fr) * 2010-10-22 2012-12-27 Robert Bosch Gmbh Procédé et dispositif de démarrage d'un moteur à combustion interne et dispositif commutateur sélecteur
EP2648330A1 (fr) * 2012-04-05 2013-10-09 Valeo Equipements Electriques Moteur Procédé de commande d'un démarreur de moteur thermique de véhicule automobile, dispositif de commande et démarreur correspondants
EP2647830A1 (fr) * 2012-04-05 2013-10-09 Valeo Equipements Electriques Moteur Dispositif de commande d'un démarreur d'un moteur thermique de véhicule automobile, et démarreur correspondant
FR2989124A1 (fr) * 2012-04-05 2013-10-11 Valeo Equip Electr Moteur Procede de commande d'un demarreur de moteur thermique de vehicule automobile, dispositif de commande et demarreur correspondants
FR2992788A1 (fr) * 2012-06-28 2014-01-03 Peugeot Citroen Automobiles Sa Procede et dispositif de controle d'un producteur d'energie electrique et de moyens de stockage d'energie electrique d'un systeme, par pilotage de leurs consignes de courant

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Publication number Publication date
DE102008040681A1 (de) 2010-01-28

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