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WO2009068212A1 - Dispositif de commande et procédé de démarrage d'un moteur à combustion interne - Google Patents

Dispositif de commande et procédé de démarrage d'un moteur à combustion interne Download PDF

Info

Publication number
WO2009068212A1
WO2009068212A1 PCT/EP2008/009783 EP2008009783W WO2009068212A1 WO 2009068212 A1 WO2009068212 A1 WO 2009068212A1 EP 2008009783 W EP2008009783 W EP 2008009783W WO 2009068212 A1 WO2009068212 A1 WO 2009068212A1
Authority
WO
WIPO (PCT)
Prior art keywords
switching means
starting device
control device
combustion engine
internal 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.)
Ceased
Application number
PCT/EP2008/009783
Other languages
German (de)
English (en)
Inventor
Peter Konrad
Carsten Hildebrand
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
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 AG filed Critical Volkswagen AG
Publication of WO2009068212A1 publication Critical patent/WO2009068212A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • F02N11/0859—Circuits 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 specially adapted for starting of engines
    • F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
    • 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
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/02—Parameters used for control of starting apparatus said parameters being related to the engine
    • F02N2200/023—Engine temperature
    • 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
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/06—Parameters used for control of starting apparatus said parameters being related to the power supply or driving circuits for the starter
    • F02N2200/063—Battery voltage
    • 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 present invention relates to a method for starting an internal combustion engine of a vehicle and a control device for driving an electric starting device of an internal combustion engine of a vehicle
  • the starter is powered by a battery of the vehicle, eg a 12 volt battery.
  • the dimensioning of the starter depends on the moment required for starting the internal combustion engine at low ambient temperatures of z B -24 ° C and cold engine Under these conditions, the required torque is particularly high. Due to the proportionality of torque and the current absorbed by the starter, the dimensions of the starter also determine the required current consumption
  • start-stop tungsten where the engine is automatically switched off when, for example, the vehicle is stationary, no gear is engaged and the clutch is released, and in which the engine is automatically restarted when the clutch is kicked in these so-called start-stop vehicles thus occur very much Startup often on which due to the associated voltage dips to malfunction
  • start-stop vehicles will have such controllers or devices with upstream DC-DC converters, so-called DC / DC converters, that provide voltage stabilization.
  • DC-converters cause additional
  • these DC-DC converters generally have a limited capacity, so that when retrofitting electronic devices in the vehicle, such as a DVD player, the maximum efficiency of the current transformer can be exceeded and thus the additional electronic device either needs its own DC-DC converter for.stabihstechnik or must be connected to the non-stabilized electrical system, in which case the risk of Albertfu tion due to a voltage dip
  • the object of the present invention is therefore to provide a method and a device for starting an internal combustion engine of a vehicle, which avoids a voltage drop on the vehicle electrical system, is inexpensive and compact and still allows a safe start of the engine
  • the present invention provides a method of starting an internal combustion engine of a vehicle.
  • the internal combustion engine is coupled to an electric start device and is started by means of the electric start device.
  • the electric current supplied to the starting device is limited by limiting the current supplied to the electric starting device electric current, a voltage drop on the vehicle electrical system of the vehicle can be prevented, so that minimum voltages of control devices and electronic devices of the vehicle not be exceeded.
  • the electric current which is supplied to the starting device is limited in dependence on a temperature of the internal combustion engine.
  • the electric current can be limited if the temperature of the internal combustion engine is greater than or equal to a predetermined value, for example an operating temperature of the engine, whereas the electric current supplied to the starting device is not limited when the temperature of the internal combustion engine is below a predetermined value, which corresponds to a cold start of the engine, for example.
  • a predetermined value for example an operating temperature of the engine
  • the electric current supplied to the starting device is not limited when the temperature of the internal combustion engine is below a predetermined value, which corresponds to a cold start of the engine, for example.
  • the number of starts is much higher with warm combustion engine the number of cold starts, in this way, the likelihood of a fault on a control unit or electronic device of the vehicle due to a voltage dip can be significantly reduced because during the cold start of the engine many of the electronic devices, which are at risk from a voltage dip, not yet in operation, such as a navigation system or a music system of the vehicle, so that the voltage dip during cold start generally has no consequences
  • the electric current which is supplied to the starting device can also be limited in time.
  • the electric current supplied to the starting device can be limited only during a very short period of time at the start of the starting process, for example for a few hundred milliseconds.
  • the electric current supplied to the starting device can also be limited during a start-up of the starting device, ie the electric current is limited until a predetermined speed of the starting device is reached in both of the aforementioned case is avoided that takes place by the high starting current of the starting device, a voltage dip on the electrical system After the predetermined time or after reaching the predetermined speed of the current for the starting device is no longer limited, so that now, if necessary, the full moment to start the engine can be provided Since in general n after a start-up of the starting device, the current consumption of the starting device reduced anyway, thus a voltage dip be avoided on the electrical system and still ensure a reliable startup process
  • the electric current which is supplied to the starting device is limited such that a voltage of a vehicle electrical system does not drop below a predetermined value. This can be achieved, for example, by the electric current supplied to the starting device
  • the limitation can be set in one or more predetermined stages or continuously depending on the measured voltage. Such a method avoids the occurrence of voltage dips on the electrical system and at the same time provides the largest possible torque of the starting device for starting the internal combustion engine ready
  • the present invention further provides a control device for driving an electric starter of an internal combustion engine of a vehicle.
  • the control device comprises current limiting means for limiting the electric current supplied to the electric starter.
  • the current limiting means may be, for example, a resistor, an inductor, a negative temperature coefficient resistor or a combination of these
  • the current limitation during the starting operation is continuously reduced because the resistor with negative temperature coefficients heats up due to the current flowing therethrough and thus the resistance decreases.
  • the starting current can be easily achieved the starting device can be reduced and still a high moment are provided for starting the internal combustion engine
  • an inductance as a current limiting means is also by the property of the inductance to counteract rapid changes in the current flow, the current of the starting device after turning on the starting device limited and then increasingly limited with decreasing change in the current flow through the inductance This also leads to that at a suitable choice of the inductance is a voltage drop on the electrical system counteracted such that a malfunction of control devices and electronic devices of the vehicle can be avoided
  • the inductance can be moved as field winding into the starting device. This can be achieved, for example, by the starting device in its
  • Combustion engine required power of the startup device through this targeted
  • Deviation from the optimum operating point of the starting device by a change in the inductance of the current during operation is reduced
  • the control device furthermore comprises a switching means and a switching means control unit.
  • the switching means is coupled to the switching means control unit and can be switched by the switching means control unit between a first and a second switching state.
  • the switching means is coupled to the current limiting means such that in the first switching state of the In the second switching state of the switching means, the electric current supplied to the electric starting device is not guided by the current limiting means.
  • the switching means thus selectively enables the electric in response to a drive from the switching device control unit Starter zugebuchten electric power with the help of the current limiting means or the electric starting device This can be avoided by a suitable control of the switching means a voltage drop on the electrical system of the vehicle due to an operation of the Startvor ⁇ chtung
  • the control device may further comprise a temperature detecting means coupled to the switching means control unit for detecting a temperature of the internal combustion engine.
  • the switching means control unit is in this case configured to perform the If the detected temperature of the internal combustion engine is below a predetermined limit, which indicates, for example, a cold start, the switching means control unit may, for example, control the switching means of the control device so that no current limitation takes place during the entire starting process On the other hand, if the temperature indicates a temperature above the cold-start temperature, then the switching-means control unit can perform a starting operation using the current-limiting means
  • control device may comprise a timer, which is coupled to the Wegffen Kunststoffemheit, and with the aid of the Wegstoffstoffemheit the switching means in response to the timer drives
  • the Wegstoffstoffemheit first the current for the starting device by means of the current limiting means limit and after a predetermined time, for example, 200, 300, 400 or 500 ms, the switching means to control such that the starting device, an electric current is supplied, which is not limited by the current limiting means
  • the control device may further include a speed detecting means for detecting a rotational speed of the starting device.
  • the speed detecting means is coupled to the switching means control unit and the switching means controlling unit is configured to drive the switching means in response to the rotational speed of the starting device detected by the rotational speed detecting means by detecting the rotational speed of the starting device Since during this start-up phase, the current consumption of the starting device is particularly high, controls the Wegffen Kunststoffemheit in this phase, the switching means such that the current supplied to the starting device using the current limiting means is limited as soon as the start-up phase with the aid of the detected speed is completed, controls the Heidelbergstoffmaschineemheit the switching means such that the starting device supplied current is not limited by the current limiting means Thus, a voltage drop on the vehicle electrical system of the vehicle can be avoided
  • the present invention provides a vehicle with an internal combustion engine.
  • the internal combustion engine is started by means of an electric starting device coupled to the internal combustion engine.
  • the electrical starting device here comprises an embodiment of the starting devices described above
  • the figure shows schematically a control device according to the present invention.
  • the figure shows a control device 1 which is coupled to a starting device 2 of an internal combustion engine 3 of a vehicle.
  • An on-board network 4 supplies the control device 1 and other electrical or electronic devices 5, 6 of the vehicle with electrical power Energy from a vehicle battery 7
  • the control device 1 comprises a current limiting means 8, a switching means 9, a switching means control unit 10, a further switching means 11, a temperature detecting means 12, a rotational speed detecting means 13 and a timer 14
  • the starting device 2 is supplied with power from the battery 7 via the vehicle electrical system 4 and via the control device 1.
  • the switching means 9 and the further switching means 11 are in the illustrated embodiment relays, which are controlled by the switching means control unit 10
  • the switching contacts of the switching means 9 and the further switching means are connected in parallel to the switching contact of the switching means 9.
  • the current limiting means 8 is a resistor.
  • the starting device 2 When the switching contact of the further switching means 11 is closed, the starting device 2 becomes supplied with power from the battery 7 Depending on the switching position of the switching means 9, the current flows either with open switching contact of the switching means 9 via the resistor 8 or with closed contact of the switching means 9 directly via the switching contact of the scarf This means that it is possible to operate the starting device 2 optionally in dependence on the position of the switching means 9 with or without current-limiting means 8
  • the control device 1 further comprises a temperature detecting means 12 which is coupled to the engine 3 of the vehicle and a temperature of the The speed detection means 13 is coupled to the electric starting device 2 and detects the current speed of the starting device 2 and provides it to the switching means control unit 10 as a measured value. Furthermore, the timer 14 is connected to the switching means control unit 10 to realize timed operations in the switch means control unit
  • control device 1 can also be used on vehicles without such a start-stop system
  • a starting procedure can be initiated manually by the driver of the vehicle by pressing the ignition key or a start button or automatically by a start-stop automatic.
  • This initiation of the starting operation is signaled to the control device 1 via a control signal 15
  • the switching means control unit 10 now decides whether the starting device 2 is operated using the current limiting means 8 or the starting device 2 directly without using the current limiting means 8 Accordingly, in operation with current limiting means 8 only the further switching means 11 is actuated and in operation without the use of the current limit ungsffens 8, both the switching means 9 and the further switching means 1 1 is actuated
  • Em possible threshold value for actuating the switching means 9 may, for example, a comparison value for the engine temperature in the range of 10-40 0 C include Below this predetermined threshold value, the switching means 9 is operated to a At a motor temperature above the predetermined threshold, the switching means 9 is not driven, since in this case a reduced by the current limiting means 8 torque of the
  • the switching means 9 if it has not been operated, also operated to avoid overheating of the current limiting means 8
  • speed thresholds Be
  • threshold values in the range from one third to two thirds of the rated speed of the starting device 2 are suitable for setting the switching means 9.
  • Possible tent threshold values for actuating the switching means 9 are, for example, threshold values in a range of 100-1000 ms
  • the control device 1 shown above can also be realized without the timer 14 and / or without the speed detection means 13. In this case, it must be ensured in another way that the current limiting means 8 can not be overheated and thus destroyed during a long-lasting starting operation Such a resistor reduces its resistance as the temperature increases, thereby reducing the power dissipated at the resistor and thus protecting the resistor from overheating.
  • an inductor may also be used as the current limiting means 8 are used, whereby the starting current of the starting device 2 is limited due to the inductive property of the inductance In this case, it is even possible to dispense additionally on the switching means 9
  • switching means 9 shown in the figure and current limiting means 8 further switching means and current limiting means in series be switched to use, for example, temperature, time or speed controlled different current limiting means or a different number of current limiting means to control the current limit for the starting device 2 in more detail.
  • the switching means 9 and the further switching means 11 are designed as relays.
  • these switching means may also comprise power semiconductors with a suitable drive.
  • the combination of current limiting means 8 and switching means 9 can also be realized by a power semiconductor, which is optionally used by a suitable control as current limiting means or allows a current to pass substantially indefinitely.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Abstract

L'invention concerne un procédé de démarrage d'un moteur à combustion interne (3) d'un véhicule, ledit moteur à combustion interne (3) étant démarré au moyen d'un dispositif de démarrage (2) électrique accouplé au moteur à combustion interne (3). Selon le procédé, le courant électrique alimentant le dispositif de démarrage (2) est limité.
PCT/EP2008/009783 2007-11-30 2008-11-19 Dispositif de commande et procédé de démarrage d'un moteur à combustion interne Ceased WO2009068212A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710057630 DE102007057630A1 (de) 2007-11-30 2007-11-30 Steuervorrichtung und Verfahren zum Starten eines Verbrennungsmotors
DE102007057630.9 2007-11-30

Publications (1)

Publication Number Publication Date
WO2009068212A1 true WO2009068212A1 (fr) 2009-06-04

Family

ID=40544121

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/009783 Ceased WO2009068212A1 (fr) 2007-11-30 2008-11-19 Dispositif de commande et procédé de démarrage d'un moteur à combustion interne

Country Status (2)

Country Link
DE (1) DE102007057630A1 (fr)
WO (1) WO2009068212A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011185196A (ja) * 2010-03-10 2011-09-22 Denso Corp エンジン始動装置
DE102010038906A1 (de) * 2010-08-04 2012-02-09 Robert Bosch Gmbh Verfahren und Steuervorrichtung zum Betreiben eines Starters eines Fahrzeugs
FR2989123B1 (fr) * 2012-04-05 2015-12-11 Valeo Equip Electr Moteur Procede de commande d'un demarreur d'un moteur thermique de vehicule automobile, dispositif de commande et demarreur correspondants
SE542023C2 (en) 2018-06-20 2020-02-11 Scania Cv Ab An arrangement and a method for protection against abnormal currents in a starter motor circuit

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010022166A1 (en) * 1997-09-17 2001-09-20 Toyota Jidosha Kabushiki Kaisha Starting control apparatus for internal combustion engine
DE10021153A1 (de) * 2000-04-29 2001-11-15 Audi Ag Vorrichtung und Verfahren zum Starten eines Verbrennungsmotors
DE10252511A1 (de) * 2002-11-08 2004-05-27 Robert Bosch Gmbh Verfahren und Vorrichtung zur Steuerung eines Starters einer Brennkraftmaschine
DE102004007393A1 (de) * 2003-02-28 2004-09-09 Denso Corp., Kariya Maschinenanlasser mit einem Anlassermotor
WO2004093102A1 (fr) * 2003-04-16 2004-10-28 Robert Bosch Gmbh Moteur electrique
US20070013347A1 (en) * 2005-07-12 2007-01-18 Nissan Motor Co., Ltd. Battery pack controller
US20070029120A1 (en) * 2004-01-16 2007-02-08 Mikio Saitou Hybrid vehicle

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010022166A1 (en) * 1997-09-17 2001-09-20 Toyota Jidosha Kabushiki Kaisha Starting control apparatus for internal combustion engine
DE10021153A1 (de) * 2000-04-29 2001-11-15 Audi Ag Vorrichtung und Verfahren zum Starten eines Verbrennungsmotors
DE10252511A1 (de) * 2002-11-08 2004-05-27 Robert Bosch Gmbh Verfahren und Vorrichtung zur Steuerung eines Starters einer Brennkraftmaschine
DE102004007393A1 (de) * 2003-02-28 2004-09-09 Denso Corp., Kariya Maschinenanlasser mit einem Anlassermotor
WO2004093102A1 (fr) * 2003-04-16 2004-10-28 Robert Bosch Gmbh Moteur electrique
US20070029120A1 (en) * 2004-01-16 2007-02-08 Mikio Saitou Hybrid vehicle
US20070013347A1 (en) * 2005-07-12 2007-01-18 Nissan Motor Co., Ltd. Battery pack controller

Also Published As

Publication number Publication date
DE102007057630A1 (de) 2009-06-04

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