EP0864744B1 - Verbesserung an Vorrichtungen zum Steuern eines Anlasschützes für einen Kraftfahrzeug - Google Patents

Verbesserung an Vorrichtungen zum Steuern eines Anlasschützes für einen Kraftfahrzeug Download PDF

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Publication number
EP0864744B1
EP0864744B1 EP98400553A EP98400553A EP0864744B1 EP 0864744 B1 EP0864744 B1 EP 0864744B1 EP 98400553 A EP98400553 A EP 98400553A EP 98400553 A EP98400553 A EP 98400553A EP 0864744 B1 EP0864744 B1 EP 0864744B1
Authority
EP
European Patent Office
Prior art keywords
contactor
coil
transistor
controlling
starter motor
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
EP98400553A
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English (en)
French (fr)
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EP0864744A1 (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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Filing date
Publication date
Application filed by Valeo Equipements Electriques Moteur SAS filed Critical Valeo Equipements Electriques Moteur SAS
Publication of EP0864744A1 publication Critical patent/EP0864744A1/de
Application granted granted Critical
Publication of EP0864744B1 publication Critical patent/EP0864744B1/de
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 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
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/10—Safety devices
    • F02N11/106—Safety devices for stopping or interrupting 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
    • 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

Definitions

  • the present invention relates to devices for controlling a vehicle starter switch automobile.
  • a starter D which includes an electric motor M mounted between a terminal B + power supply to battery voltage and ground.
  • Electric motor supply is controlled by a contactor 1 mounted between said terminal B + and the motor M.
  • This contactor 1 is a relay which includes a plunger core (not shown) actuated by a winding call 2 and a holding coil 3 for pushing and maintain a power contact in the closed position 1a.
  • the call winding 2 is mounted between the end of the motor M which is opposite to the ground and the winding 3, said coil 3 being connected to ground by its end opposite.
  • the coils 2 and 3 are connected to the source of a transistor 4 whose drain is connected to terminal B +, via the ignition key switch 6.
  • This transistor 4 is controlled, for example in all or nothing, by a microprocessor 5 - also connected to the supply terminal B + - which injects a voltage of control on the gate of transistor 4.
  • This microprocessor 5 is for example, as illustrated in FIG. 1, integrated with relay 1 and transistor 4 inside of the starter housing. It can also be located outside the starter, anywhere in the vehicle.
  • the call coil 2 is chosen with very resistance lower than that of the holding coil 3.
  • the transistor 4 supplying only the coil of maintenance 3, whose current consumption is low, the heating of said transistor 4 is considerably reduced.
  • the transistor 4 is then very quickly destroyed by excessive heating.
  • US-A-5,345,901 describes such a device, but uses a relay instead of a transistor. To avoid overheating of the call coil of the power under the above conditions, the voltage difference between the power contact terminals is monitored and the relay is blocked if after closing the contact switch, this voltage difference is not below a predetermined threshold.
  • An object of the invention is to overcome this disadvantage.
  • said contactor comprising a contact power which controls the supply of the electric motor of the starter and at least one coil which controls the displacement of said contact
  • said device comprising a unit for managing the starter control, as well that a transistor, controlled by said unit, which controls the supply of the contactor coil (s), characterized in that the management unit includes means to block the transistor when the fall of voltage at a point supplied with battery voltage between two successive instants following the closing of the contact switch is below a given threshold.
  • the invention also relates to a device for control of the power supply of a vehicle starter automobile which comprises a contactor comprising a power contact which controls the motor supply starter motor and at least one coil which controls the movement of said contact, characterized in that that it further comprises a device for controlling contactor of the aforementioned type.
  • the control device is of a structure general similar to that illustrated in Figure 1.
  • the microprocessor 5 On its input which is connected to terminal B + by through the ignition key switch 6, the microprocessor 5 includes an analog converter digital which allows him to measure the voltage on terminal B + when switch 6 is closed.
  • the microprocessor 5 starts the start-up process by closing the transistor 4 (step 15 on the flowchart in FIG. 3) and measures the voltage U 2 in a time T 2 following the closure of switch 6 (step 16).
  • the time T 2 corresponds to approximately 10 to 20 milliseconds after the transistor 4 has switched to its on state.
  • the microprocessor 5 checks the appearance of a significant voltage drop after a time T s , T s generally being between a few tenths of seconds and a few seconds.
  • the microprocessor 5 checks whether or not the voltage at time T 2 + T s is greater than U 2 - dU, where dU corresponds to the expected minimum voltage drop (step 17).
  • the microprocessor 5 blocks the transistor 4 to avoid its deterioration (step 18).
  • microprocessor 5 continues the start-up process (step 19).
  • the time T s is obviously determined so that the heating remains low enough so that the transistor 4 is not damaged.
  • This solution has the advantage of allowing do not damage the power transistor 4 by a extended operation in call mode and does not require no additional components to achieve this function.
  • the relay can then have only one coil instead a call coil and a holding coil.
  • the device for electronic starter control illustrated in the figure 1 has the advantage of being of the "autonomous" type, that is to say not to require any other electrical connection than those used by conventional starters not electronic, namely a control cable allowing the connection with the vehicle's contact switch, a power supply cable connected to a terminal such as the positive terminal of the battery, and a return to ground by the carcass of the starter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Relay Circuits (AREA)
  • Motor And Converter Starters (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Electronic Switches (AREA)

Claims (7)

  1. Vorrichtung zur Steuerung eines Anlaßschützes eines Kraftfahrzeuganlassers (D), wobei das besagte Anlaßschütz (1) einen Leistungskontakt (1a), der die Speisung des Elektromotors (M) des Anlassers (D) steuert, und wenigstens eine Wicklung (2, 3), die die Verstellung des besagten Kontakts (1a) steuert, umfaßt, wobei die besagte Vorrichtung eine Einheit (5) zur Regelung der Steuerung des Anlassers (D) sowie einen durch die besagte Einheit (5) kontrollierten Transistor (4) umfaßt, der die Speisung der Wicklung bzw. Wicklungen des Anlaßschützes (1) steuert, wobei die besagte Regelungseinheit (5) Mittel umfaßt, um den Transistor zu sperren, wenn der Spannungsabfall (dU) an einem mit der Batteriespannung (B+) gespeisten Punkt zwischen zwei aufeinanderfolgenden Zeitpunkten (T2 und T2 + Ts) im Anschluß an das Schließen des Zündschalters (6) kleiner als ein gegebener Schwellenwert ist.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß es sich bei der Regelungseinheit (5) um einen Mikroprozessor handelt, von dem ein Analog/Digitat-Wandler-Eingang mit dem besagten mit der Batteriespannung gespeisten Punkt verbunden ist, und daß der besagte Mikroprozessor (5) den Spannungsabfall (dU) zwischen den besagten aufeinanderfolgenden Zeitpunkten (T2 und T2 + Ts) im Anschluß an das Schließen des Zündschalters (6) bestimmt und diesen Spannungsabfall (dU) mit dem besagten Schwellenwert vergleicht.
  3. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Transistor (4) durch den Mikroprozessor (5) mit zwei Schaltstufen gesteuert wird.
  4. Vorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der Mikroprozessor (5) den Transistor (4) so steuert, daß eine progressive Speisung der Wicklung bzw. Wicklungen des Anlaßschützes (1) herbeigeführt wird.
  5. Vorrichtung zur Steuerung der Speisung eines Kraftfahrzeuganlassers (D), die ein Anlaßschütz (1) mit einem Leistungskontakt (1a), der die Speisung des Elektromotors (M) des Anlassers (D) steuert, und wenigstens eine Wicklung (2, 3) umfaßt, die die Verstellung des besagten Kontakts (1a) steuert, dadurch gekennzeichnet, daß sie außerdem eine Vorrichtung zur Steuerung des Anlaßschützes (1) nach einem der vorangehenden Ansprüche umfaßt.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß das Anlaßschütz (1) eine Einzugswicklung (2) und eine Haltewicklung (3) umfaßt.
  7. Kraftfahrzeuganlasser, dadurch gekennzeichnet, daß er eine Vorrichtung zur Steuerung der Speisung nach Anspruch 6 enthält.
EP98400553A 1997-03-14 1998-03-10 Verbesserung an Vorrichtungen zum Steuern eines Anlasschützes für einen Kraftfahrzeug Expired - Lifetime EP0864744B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9703089 1997-03-14
FR9703089A FR2760891B1 (fr) 1997-03-14 1997-03-14 Perfectionnement aux dispositifs pour la commande d'un contacteur de demarreur de vehicule automobile

Publications (2)

Publication Number Publication Date
EP0864744A1 EP0864744A1 (de) 1998-09-16
EP0864744B1 true EP0864744B1 (de) 2002-12-11

Family

ID=9504778

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EP98400553A Expired - Lifetime EP0864744B1 (de) 1997-03-14 1998-03-10 Verbesserung an Vorrichtungen zum Steuern eines Anlasschützes für einen Kraftfahrzeug

Country Status (5)

Country Link
US (1) US6011317A (de)
EP (1) EP0864744B1 (de)
DE (1) DE69809984T2 (de)
ES (1) ES2189104T3 (de)
FR (1) FR2760891B1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19612018B4 (de) 1996-03-18 2005-09-29 Dreier Technology Ag Formmaschine
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
US7479711B2 (en) * 2006-10-23 2009-01-20 Ford Global Technologies, Llc System and method for controlling cycling of a vehicle contactor
FR2987082B1 (fr) * 2012-02-17 2015-03-13 Valeo Equip Electr Moteur Dispositif de demarrage d'un moteur thermique d'un vehicule automobile muni d'un systeme de mesure de tension et procede associe

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5345901A (en) * 1993-07-26 1994-09-13 Carrier Corporation Starter motor protection system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893007A (en) * 1973-07-06 1975-07-01 Nippon Denso Co Vehicle starter protective system
JPS5985377U (ja) * 1982-11-30 1984-06-09 三菱電機株式会社 エンジンのスタ−タ保護装置
JPH076469B2 (ja) * 1987-05-28 1995-01-30 三菱電機株式会社 エンジン自動始動方法および装置
US4947051A (en) * 1988-01-22 1990-08-07 Mitsubishi Denki Kabushiki Kaisha Starter protector for an engine
US4906857A (en) * 1988-12-12 1990-03-06 Kikusui Line Co., Ltd. Electronic starting motor control having fail safe and overvoltage protection
US4917411A (en) * 1988-12-12 1990-04-17 General Motors Corporation Electronic starting motor control with low voltage protection
DE4026232C2 (de) * 1990-08-18 2003-09-04 Bosch Gmbh Robert Einrichtung zur Überwachung eines Drehzahlgebers
US5459357A (en) * 1991-08-08 1995-10-17 Minks; Floyd M. Engine operated switch for controlling operation of electrical load responsive to alternator voltage and/or battery voltage
US5287831A (en) * 1991-08-15 1994-02-22 Nartron Corporation Vehicle starter and electrical system protection
DE19503537A1 (de) * 1995-02-03 1996-08-08 Bosch Gmbh Robert Schaltungsanordnung für Startvorrichtung von Brennkraftmaschinen
US5564375A (en) * 1995-05-15 1996-10-15 Wacker Corporation Start circuit with anti-restart circuitry

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5345901A (en) * 1993-07-26 1994-09-13 Carrier Corporation Starter motor protection system

Also Published As

Publication number Publication date
EP0864744A1 (de) 1998-09-16
FR2760891A1 (fr) 1998-09-18
FR2760891B1 (fr) 1999-05-28
US6011317A (en) 2000-01-04
DE69809984D1 (de) 2003-01-23
ES2189104T3 (es) 2003-07-01
DE69809984T2 (de) 2003-07-24

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