EP0796992A1 - Verfahren und Vorrichtung zum Steuern eines Versorgungsschalters für einen Kraftfahrzeuganlasser - Google Patents

Verfahren und Vorrichtung zum Steuern eines Versorgungsschalters für einen Kraftfahrzeuganlasser Download PDF

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Publication number
EP0796992A1
EP0796992A1 EP97400625A EP97400625A EP0796992A1 EP 0796992 A1 EP0796992 A1 EP 0796992A1 EP 97400625 A EP97400625 A EP 97400625A EP 97400625 A EP97400625 A EP 97400625A EP 0796992 A1 EP0796992 A1 EP 0796992A1
Authority
EP
European Patent Office
Prior art keywords
signal
power contact
starter
open
winding
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.)
Granted
Application number
EP97400625A
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English (en)
French (fr)
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EP0796992B1 (de
Inventor
Gérard Vilou
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
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Valeo Equipements Electriques Moteur SAS
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Application filed by Valeo Equipements Electriques Moteur SAS filed Critical Valeo Equipements Electriques Moteur SAS
Publication of EP0796992A1 publication Critical patent/EP0796992A1/de
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Anticipated expiration legal-status Critical
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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
    • F02N11/0848—Circuits or control means specially adapted for starting of engines with means for detecting successful engine start, e.g. to stop starter actuation
    • 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
    • F02N11/10—Safety devices

Definitions

  • the present invention relates to methods and devices for controlling a motor vehicle starter switch.
  • the supply of a motor vehicle starter is controlled by a winding power contactor, controlled by electronics.
  • the role of such a contactor is, on the one hand, to constitute a linear actuator for moving a starter pinion along a drive shaft from a rest position to a meshing position with a ring gear situated under a flywheel. and, on the other hand, to constitute a power relay whose contact allows the supply of the electric motor of the starter, said motor driving in rotation the starter pinion.
  • the control electronics generally comprise a switch of the transistor type which controls the passage of a current in the winding of the contactor.
  • the control is all or nothing or progressive, as has been proposed in patent application FR 2 679 717.
  • the winding is supplied in the inrush state by a strong current, so as to develop the mechanical forces necessary to propel the starter pinion in the starting ring of the heat engine.
  • the contactor has two windings, including a call winding and a holding winding, the power goes at the end of the previous period to a reduced current level sufficient to keep the power contactor closed.
  • This operating mode is normally very brief, of the order of a few tenths of seconds, which prevents deterioration by thermal effect of the components mentioned.
  • the operating time in call mode is as long as the duration of keeping the ignition key in the start position.
  • This duration is left to the discretion of the driver of the vehicle; in practice, it can sometimes reach several tens of seconds, which is more than enough to damage the transistor or the contactor winding.
  • the causes of non-closing of the power switch can be numerous: in addition to the mechanical causes, they can also be linked to the presence of non-conductive bodies on the surface of the contacts: dust, insulating particles, icing, oxidation ,. ..
  • An object of the invention is therefore to propose a method and a control device which make it possible to avoid deterioration of the transistor or of the contactor winding when due to a failure of the contactor the operating time in the call state is too important.
  • the call supply or windings are cut or reduced when the power contact is always open after a predetermined time from the start of the call supply.
  • the invention also provides a device for controlling a motor vehicle starter contactor, said contactor comprising at least one winding and a power contact, the closure of which allows the starter to be supplied, characterized in that it comprises means for detecting the open or closed state of the power contact, as well as means for cutting off or reducing the call supply to the winding (s) when the power contact is still open after a predetermined time by report at the start of call feeding.
  • an electric motor D has been shown which constitutes the starter of the vehicle and the supply of which is controlled by a power contact 1.
  • This electric motor D is mounted between a terminal B + at the supply voltage of the battery and earth.
  • Contact 1 is interposed between the supply terminal B + and the starter D.
  • winding 2 mounted between the supply terminal B + and the earth.
  • the supply of the winding 2 is itself controlled by a switch 3 interposed between the winding 2 and the ground.
  • the switch 3 is a MOSFET type transistor, the drain of which is connected to the winding 2 and the source of which is connected to ground.
  • the gate voltage of this transistor 3 is controlled by electronics 4 which will now be described.
  • This electronics 4 includes a management unit 5, which manages the gate voltage of the transistor 5, so as to control the supply sequence of the winding 2 according to the different phases of operation of the starter (call supply, maintenance of contact closure, automatic starter stop after starting the engine, etc.).
  • This unit 5 also performs various functions, such as thermal protection for the starter, restart protection when the engine is running, etc.
  • This management unit 5 receives various information on the operation of the starter D. It is also connected to a line L of supply to the voltage of the vehicle battery, controlled by the ignition key 6.
  • the signal "a" at the output of this management unit 5 is transmitted to means 7 for controlling the blocking of the transistor 3, which generates the voltage injected on the gate of the transistor 3.
  • These means 7 control for example the transistor 3 so that it works as a switch or in sequenced or progressive supply.
  • This signal “a” is for example of the type of the binary signal illustrated in FIG. 2a, the level 1 of which corresponds to the control of the blocking of the transistor 3 and the level of which 0 controls its opening. Signal “a” goes to level 1 when the ignition key is closed.
  • This signal "a” is also transmitted to a timer unit 8.
  • the signal "e” at the output of this timer unit 8 is delayed by a duration Tc with respect to the signal "a” ( Figure 2b).
  • This signal "f” is generated by a unit 10 which detects the open or closed state of the power contact 1 as a function, for example, of the measurement of the voltage at the terminals of the starter D, or also of the measurement of the intensity that flows through it.
  • the signal "f" can be generated as a function of a measurement of the speed either of the electric motor that constitutes the starter, or of the heat engine.
  • the unit 10 advantageously comprises a circuit for smoothing the input signal, so as not to inadvertently trigger the electronic protection under the effect of micro-breaking of the power contact which could occur, for example, following bounces of the contact or to switching noise on the electric motor.
  • the signal "g" at the output of the unit 9 is a signal of the type illustrated in FIG. 2d, which is equal to 1 when the power contact 1 is not closed at the end of the time delay by the unit 8, that is to say when the signal "f” is equal to 0 when the signal "e” passes to its level 1.
  • This signal "g" is transmitted with the signal “a” to the means 7 for controlling the blocking of the transistor 3.
  • the signal "b" (FIG. 2e) generated by these means 7 controls the blocking of the transistor 3 when the signal "a” is at its level 1 and that the signal "g" is at its level 0.
  • the delay time Tc is chosen small enough so that there is no irreversible damage to the transistor 3 or the winding 2 if the power contact 1 does not close, but nevertheless sufficient to ensure the propulsion of the starter pinion in the working position.
  • the means 7 for controlling the gate of the transistor consist of a resistor R1.
  • Unit 8 consists of a standard timing circuit which goes to level 1 after a given time delay Tc, when it receives a level 1 signal.
  • the decision-making unit 9 includes a "NAND" gate 11, a first input e 1 of which is connected to the output of the timing unit 8 and a second input of which e 2 is connected to the collector of a bipolar switching transistor T This collector is charged by a resistor R2 connected to a supply terminal at the battery voltage.
  • the emitter of this transistor T is connected to ground.
  • the output s of this gate 11 is connected to the gate of transistor 3, by means of a diode 12, which is blocking from said output s towards the gate.
  • the transistor T In the absence of a positive signal on its base (signal "f" at level 0), the transistor T is not conductive and the second input of the NAND gate is at level 1.
  • the output of logic gate 11 is then at level 0 when the signal "e" goes to level 1 at the end of the time delay.
  • the gate of transistor 3 is then at a voltage close to 0.
  • the inrush current in said transistor 3 and in winding 2 is reduced to a negligible value, which makes the situation without risk from the thermal point of view.
  • the diode 12 makes it possible to avoid, in these cases, any influence on the command generated by the unit 5.
  • the gate voltage of the transistor 3 is then directly controlled by the level of the signal "a" at the output of the unit of management 5.
  • the unit 10 illustrated in FIG. 3 makes it possible both to calibrate and to smooth the voltage on the positive terminal of the electric motor.
  • Zener diode 13 the anode of which is connected to ground and the cathode of which is connected, by means of a resistor R3, to the base of the transistor T.
  • the cathode of this diode 13 is also connected, via a resistor R4, to one end of a capacitor 14, the other end of which is connected to ground. At their common end, the capacitor 14 and the resistor R4 are connected to a point between the contact 1 and the starter D, by means of a diode 15.
  • Resistor R4 limits the current in this diode 13 in the event of an overvoltage.
  • the capacitor 14 eliminates the undesirable effects of micro-breaks and parasites.
  • the diode 15 prevents rapid discharge of the capacitor 14 in the starter D during the micro-cuts.
  • the device which has just been described has many advantages.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Direct Current Motors (AREA)
  • Motor And Converter Starters (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Relay Circuits (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
EP97400625A 1996-03-21 1997-03-20 Verfahren und Vorrichtung zum Steuern eines Versorgungsschalters für einen Kraftfahrzeuganlasser Expired - Lifetime EP0796992B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9603509 1996-03-21
FR9603509A FR2746449B1 (fr) 1996-03-21 1996-03-21 Procede et dispositif pour la commande d'un contacteur d'alimentation d'un demarreur de vehicule automobile

Publications (2)

Publication Number Publication Date
EP0796992A1 true EP0796992A1 (de) 1997-09-24
EP0796992B1 EP0796992B1 (de) 2003-01-15

Family

ID=9490383

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97400625A Expired - Lifetime EP0796992B1 (de) 1996-03-21 1997-03-20 Verfahren und Vorrichtung zum Steuern eines Versorgungsschalters für einen Kraftfahrzeuganlasser

Country Status (6)

Country Link
US (1) US5831804A (de)
EP (1) EP0796992B1 (de)
JP (2) JP4175677B2 (de)
DE (1) DE69718366T2 (de)
ES (1) ES2191155T3 (de)
FR (1) FR2746449B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2771780A1 (fr) * 1997-12-03 1999-06-04 Valeo Equip Electr Moteur Procede et dispositif pour la commande de l'alimentation du bobinage d'un contacteur de demarreur de vehicule automobile
FR2772085A1 (fr) * 1997-12-10 1999-06-11 Valeo Equip Electr Moteur Perfectionnement aux dispositifs pour la commande d'un demarreur de vehicule automobile

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6024065A (en) * 1994-07-05 2000-02-15 Chrysler Corporation Starter motor control circuit and method
FR2760910B1 (fr) * 1997-03-14 1999-05-28 Valeo Equip Electr Moteur Dispositif pour la commande d'un contacteur de demarreur de vehicule automobile
FR2783371B1 (fr) * 1998-09-16 2000-12-01 Valeo Equip Electr Moteur Dispositif pour la commande de l'alimentation d'un moteur electrique de demarreur de vehicule et demarreur comportant un tel dispositif
DE10034779A1 (de) * 2000-07-18 2002-01-31 Bosch Gmbh Robert Ansteuervorrichtung für Starter von Verbrennungsmotoren
JP3831191B2 (ja) * 2000-10-13 2006-10-11 株式会社東海理化電機製作所 車両用エンジン始動装置及びエンジン始動方法
FR2839344B1 (fr) * 2002-03-29 2005-12-02 Valeo Equip Electr Moteur Circuit de commande electronique d'un contacteur de demarreur de vehicule automobile, equipe de moyens de correction en cas de non fermeture du contact de puissance
EP1426612A1 (de) * 2002-12-04 2004-06-09 Valeo Mando Electrical Systems Korea Limited Stabilisierungsschaltung eines Magnetschalters für Anlasser
JP3861876B2 (ja) * 2003-12-22 2006-12-27 日産自動車株式会社 エンジン始動制御装置とその方法
US7084588B2 (en) * 2004-07-30 2006-08-01 Ballard Power Systems Corporation Method, apparatus and article for motor control voltage dropout detection
US7728704B2 (en) * 2007-06-07 2010-06-01 Trombetta, Llc Method for reducing continuous charge
DE102009027828A1 (de) * 2009-07-20 2011-01-27 Robert Bosch Gmbh Steuerung und Verfahren eines Startermotors für eine Startvorrichtung
US9434261B2 (en) * 2011-10-17 2016-09-06 Robert Bosch Gmbh Welded contactor checking systems and methods
JP5505449B2 (ja) 2012-04-06 2014-05-28 株式会社デンソー 多相回転機の制御装置
CN105869576A (zh) * 2015-01-24 2016-08-17 深圳富泰宏精密工业有限公司 提高显示稳定性的装置与方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4345554A (en) * 1979-11-19 1982-08-24 Hildreth Donald M Vehicle engine remote starter control and protective system
US5345901A (en) * 1993-07-26 1994-09-13 Carrier Corporation Starter motor protection system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2679717B1 (fr) * 1991-07-23 1994-12-23 Valeo Equip Electr Moteur Dispositif de commande d'un demarreur de vehicule automobile.
US5601058A (en) * 1995-03-06 1997-02-11 The United States Of America As Represented By The Department Of Energy Starting apparatus for internal combustion engines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4345554A (en) * 1979-11-19 1982-08-24 Hildreth Donald M Vehicle engine remote starter control and protective system
US5345901A (en) * 1993-07-26 1994-09-13 Carrier Corporation Starter motor protection system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2771780A1 (fr) * 1997-12-03 1999-06-04 Valeo Equip Electr Moteur Procede et dispositif pour la commande de l'alimentation du bobinage d'un contacteur de demarreur de vehicule automobile
EP0921305A2 (de) * 1997-12-03 1999-06-09 Valeo Equipements Electriques Moteur Verfahren und Vorrichtung zur Steuerung des Stromzufuhrs einer Schalterwicklung für Kraftfahrzeuganlasser
EP0921305A3 (de) * 1997-12-03 1999-06-16 Valeo Equipements Electriques Moteur Verfahren und Vorrichtung zur Steuerung des Stromzufuhrs einer Schalterwicklung für Kraftfahrzeuganlasser
US6176212B1 (en) * 1997-12-03 2001-01-23 Valeo Equipements Electriques Moteur Method and device for controlling energization of the coil of a motor vehicle starter contactor
FR2772085A1 (fr) * 1997-12-10 1999-06-11 Valeo Equip Electr Moteur Perfectionnement aux dispositifs pour la commande d'un demarreur de vehicule automobile
EP0922855A1 (de) * 1997-12-10 1999-06-16 Valeo Equipements Electriques Moteur Verbesserungen an Steuervorrichtungen für Anlasser von Kraftfahrzeugen

Also Published As

Publication number Publication date
FR2746449B1 (fr) 1998-06-12
FR2746449A1 (fr) 1997-09-26
JPH1026068A (ja) 1998-01-27
JP4613197B2 (ja) 2011-01-12
US5831804A (en) 1998-11-03
JP4175677B2 (ja) 2008-11-05
JP2008019872A (ja) 2008-01-31
DE69718366D1 (de) 2003-02-20
ES2191155T3 (es) 2003-09-01
DE69718366T2 (de) 2003-09-04
EP0796992B1 (de) 2003-01-15

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