EP0796992B1 - 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
EP0796992B1
EP0796992B1 EP97400625A EP97400625A EP0796992B1 EP 0796992 B1 EP0796992 B1 EP 0796992B1 EP 97400625 A EP97400625 A EP 97400625A EP 97400625 A EP97400625 A EP 97400625A EP 0796992 B1 EP0796992 B1 EP 0796992B1
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EP
European Patent Office
Prior art keywords
signal
open
power contact
starter
closed state
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.)
Expired - Lifetime
Application number
EP97400625A
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English (en)
French (fr)
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EP0796992A1 (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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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
    • F02N11/0848—Circuits 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 to devices for controlling a contactor motor vehicle starter.
  • the supply of a starter motor vehicle is controlled by a contactor winding power, controlled by electronics.
  • the role of such a contactor is, on the one hand, to constitute a linear actuator to move a pinion launcher along a motor shaft from a rest position at a meshing position with a ring gear located under a flywheel and, on the other hand, constitute a power relay whose contact allows the starter electric motor supply, said motor driving the starter pinion in rotation.
  • Control electronics generally include a transistor type switch which controls the passage current in the contactor winding.
  • the command is all or nothing or progressive as it has been proposed in patent application FR 2 679 717.
  • the winding is supplied with state of call by a strong current, so as to develop the mechanical forces necessary to propel the pinion starter in the engine starter ring thermal.
  • the contactor has two windings, including a call winding and a holding winding, the supply passes at the end of previous period at sufficient reduced current level to keep the power contactor closed.
  • the contactor winding (whether it is one or more windings) and the control transistor are the seat significant heat release.
  • This operating mode is normally very in short, on the order of a few tenths of a second, this which prevents deterioration by thermal effect of components cited.
  • 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 vehicle driver; in practice, it can sometimes reach several tens of seconds, which is more than enough to damage the transistor or contactor winding.
  • the causes of non-closure of the power switch can be numerous: in addition to the mechanical causes, they can also be related to the presence of non-conductive bodies at the contact surface: dust, insulating particles, icing, oxidation, ...
  • An object of the invention is therefore to propose a method and control device which allow avoid deterioration of the transistor or the winding of the contactor when due to a fault in the contactor operating time in call state is too important.
  • a device for the control of a vehicle starter switch automotive, said contactor comprising at least one winding and a power contact whose closure allows the starter to be supplied, said device comprising means for measuring a signal including evolutions are characteristic of the open state or closed the power contact and to process this signal to detect the open or closed state of the contact power, as well as means to cut or reduce the call supply of the winding (s) when the power contact is always open after a predetermined time from the start of the call supply, characterized in that the signal measured is the voltage across the starter, or the intensity that flows in it, or even a signal characteristic of the speed of rotation of the starter or heat engine and in that the means detection of the open or closed state of the contact power include means for smoothing this signal measured before processing for condition detection open or closed of the power contact.
  • a motor is shown electric D which constitutes the starter of the vehicle and whose supply is controlled by a contact of power 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 ground.
  • the supply of the winding 2 is itself controlled by a switch 3 interposed between the winding 2 and the ground.
  • switch 3 is a MOSFET type transistor, the drain of which is connected to winding 2 and whose source 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 transistor 5, so to control the feeding sequence of winding 2 according to the different operating phases of the starter (call supply, hold-open) ignition, automatic starter stop after starting the heat engine, etc.).
  • This unit 5 provides also different functions, such as protection thermal starter, restart protection when the engine is running, etc.
  • This management unit 5 receives different information on the operation of starter D. It is also connected to a supply line L at the vehicle battery voltage, controlled by key contact 6.
  • the signal "a" at the output of this management unit 5 is transmitted to means 7 for controlling the blocking of transistor 3, which generates the voltage injected on the gate of transistor 3.
  • These means 7 control by example transistor 3 so that it works in switch or in sequenced supply or progressive.
  • This signal “a” is for example of the signal type binary illustrated in Figure 2a, whose level 1 corresponds to the command to block transistor 3 and whose level 0 controls its opening. The signal “a” goes to level 1 when the key is closed contact.
  • This signal "a” is also transmitted to a unit timer 8.
  • the signal "e” at the output of this unit of timer 8 is delayed by a duration Tc relative to the signal "a" ( Figure 2b).
  • This signal "f” is generated by a unit 10 which detects the open or closed state of power contact 1 depending, for example, on the measurement of the aux voltage terminals of the starter D, or of the measurement of the intensity that flows through it.
  • the signal "f" can be generated in function of a speed measurement of either the motor electric starter or motor thermal.
  • the unit 10 advantageously comprises a circuit for smoothing the input signal, so as not to trigger unwanted electronic protection under the effect of the power contact that could intervene, for example, following contact bounces or to switching noise on the electric motor.
  • the signal "g" at the output of unit 9 is a signal of the type shown in Figure 2d, which is 1 when power contact 1 is not closed at the end of the timer by unit 8, i.e. when the signal "f” is 0 when the signal "e” goes to his level 1.
  • This signal "g" is transmitted with the signal "a” to means 7 for controlling the blocking of the transistor 3.
  • the signal "b” ( Figure 2e) generated by these means 7 controls the blocking of transistor 3 when the signal "a” is at level 1 and the signal "g" is at its level 0.
  • the delay time Tc is chosen small enough so that there is no damage irreversible of transistor 3 or winding 2 if the power contact 1 does not close, but nevertheless sufficient to propel the starter pinion in working position.
  • the means 7 for controlling the grid of the transistor consist of a resistor R1.
  • Unit 8 consists of a circuit standard timer which goes to level 1 after a given delay time 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 the mass.
  • the output s of this door 11 is connected to the gate of transistor 3, via a diode 12, which is blocking from said outlet s towards the grid.
  • 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 entry 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 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 safe from thermal point of view.
  • the diode 12 makes it possible to avoid, in these cases, any influence on the command generated by unit 5.
  • the gate voltage of transistor 3 is then directly controlled by the level of signal "a" at the output of the unit management 5.
  • the unit 10 illustrated in FIG. 3 allows the times to calibrate and smooth the voltage on the terminal positive of the electric motor.
  • Zener diode 13 whose anode is connected to ground and whose cathode is connected, by through a resistor R3, at the base of the transistor T.
  • the cathode of this diode 13 is also connected, via a resistor R4, at one end a capacitor 14, the other end of which is connected to the mass. At their common end, the capacitor 14 and resistance R4 are connected to a point between contact 1 and the starter D, via a diode 15.
  • Resistor R4 limits the current in this diode 13 in case of overvoltage.
  • Capacitor 14 eliminates unwanted effects micro-cuts and parasites. Diode 15 avoids quick discharge of capacitor 14 in starter D during micro-cuts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Motor And Converter Starters (AREA)
  • Control Of Direct Current Motors (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Relay Circuits (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Claims (7)

  1. Vorrichtung zur Steuerung eines Anlasserschalters für einen Kraftfahrzeuganlasser, wobei der besagte Schalter wenigstens eine Wicklung (2) und einen Leistungskontakt (1) umfasst, dessen Schließen die Stromversorgung des Anlassers ermöglicht, wobei die besagte Vorrichtung Mittel (10) umfasst, um ein Signal zu messen, dessen Veränderungen kennzeichnend für den geöffneten oder geschlossenen Zustand des Leistungskontakts sind, und um dieses Signal zu verarbeiten, um den geöffneten oder geschlossenen Zustand des Leistungskontakts (1) zu erfassen, sowie Mittel, um die Einzugsstromversorgung der Wicklung bzw. der Wicklungen (2) abzuschalten oder zu verringern, wenn der Leistungskontakt (1) nach Ablauf einer vorbestimmten Zeit bezogen auf den Beginn der Einzugsstromversorgung noch immer geöffnet ist, dadurch gekennzeichnet, dass das gemessene Signal die Klemmenspannung des Anlassers (D) ist und dass die Mittel (10) zur Erfassung des geöffneten oder geschlossenen Zustands des Leistungskontakts Mittel (14) zur Glättung dieses gemessenen Signals vor seiner Verarbeitung zur Erfassung des geöffneten oder geschlossenen Zustands des Leistungskontakts umfassen.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass sie Mittel (5) zur Erzeugung eines Steuersignals zum Steuern des Anlassvorgangs, insbesondere beim Schließen des Zündschlüssels (6), ein Element (3) zur Regelung des Versorgungsstroms der Wicklung bzw. der Wicklungen (2) und Mittel (7) zur Steuerung dieses Regelungselements umfasst, wobei diese Mittel (7) das Anlasssteuersignal empfangen, während die Mittel zum Abschalten oder Verringern der Einzugsstromversorgung Zeitschaltmittel (8) umfassen, an die das Anlasssteuersignal übertragen wird, sowie Entscheidungsmittel (9), die eingangsseitig die ausgangsseitigen Signale der Zeitschaltmittel (8) einerseits und der Mittel (10) zur Erfassung des geöffneten oder geschlossenen Zustands des Leistungskontakts (1) andererseits empfangen, wobei diese Entscheidungsmittel (9) ausgangsseitig ein Signal abgeben, das den Mitteln (7) zur Steuerung des Regelungselements (3) anzeigt, dass der Leistungskontakt (1) nach Ablauf der Verzögerungszeit geöffnet ist.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Entscheidungsmittel (9) ein Logikgatter (11) umfassen, von dem ein Eingang das ausgangsseitige Signal der Zeitschaltmittel (8) und ein anderer Eingang ein Signal entsprechend dem ausgangsseitigen Signal der Mittel (10) zur Erfassung des geöffneten oder geschlossenen Zustands des Leistungskontakts empfängt, wobei der Ausgang des besagten Logikgatters (11) über eine Diode (12) mit dem Ausgang der Mittel (7) zur Steuerung des Regelungselements (3) verbunden ist.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass das Logikgatter (11) ein NICHT UND-Glied ist.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass der zweite Eingang des Logikgatters (11) über hauptsächlich ohmsche Mittel (R2) mit einer Speiseklemme sowie mit einem Ende eines Schalters (T) verbunden ist, dessen anderes Ende mit der Masse verbunden ist und der durch das ausgangsseitige Signal der Mittel (10) zur Erfassung des geöffneten oder geschlossenen Zustands des Leistungskontakts gesteuert wird.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Erfassungsmittel eine Zener-Diode (13) umfassen, deren Kathodenspannung das Signal ist, das den Schalter steuert, wobei die Kathode der besagten Diode mit einem Punkt zwischen dem Leistungskontakt (1) und dem Anlasser (D) verbunden ist, während ihre Anode an die Masse angeschlossen ist.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Erfassungsmittel außerdem hauptsächlich ohmsche Mittel (R4) zur Begrenzung des Stroms in der besagten Diode (13) im Falle einer Überspannung umfassen.
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 EP0796992A1 (de) 1997-09-24
EP0796992B1 true EP0796992B1 (de) 2003-01-15

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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)

Families Citing this family (16)

* 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
FR2771780B1 (fr) * 1997-12-03 2000-02-18 Valeo Equip Electr Moteur Procede et dispositif pour la commande de l'alimentation du bobinage d'un contacteur de demarreur de vehicule automobile
FR2772085B1 (fr) * 1997-12-10 2000-02-25 Valeo Equip Electr Moteur Perfectionnement aux dispositifs pour la commande d'un 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

Family Cites Families (4)

* 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
FR2679717B1 (fr) * 1991-07-23 1994-12-23 Valeo Equip Electr Moteur Dispositif de commande d'un demarreur de vehicule automobile.
US5345901A (en) * 1993-07-26 1994-09-13 Carrier Corporation Starter motor protection system
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

Also Published As

Publication number Publication date
JP2008019872A (ja) 2008-01-31
FR2746449B1 (fr) 1998-06-12
FR2746449A1 (fr) 1997-09-26
DE69718366D1 (de) 2003-02-20
DE69718366T2 (de) 2003-09-04
US5831804A (en) 1998-11-03
JP4613197B2 (ja) 2011-01-12
EP0796992A1 (de) 1997-09-24
JP4175677B2 (ja) 2008-11-05
JPH1026068A (ja) 1998-01-27
ES2191155T3 (es) 2003-09-01

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