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EP0921305B1 - Verfahren und Vorrichtung zur Steuerung des Stromzufuhrs einer Schalterwicklung für Kraftfahrzeuganlasser - Google Patents

Verfahren und Vorrichtung zur Steuerung des Stromzufuhrs einer Schalterwicklung für Kraftfahrzeuganlasser Download PDF

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Publication number
EP0921305B1
EP0921305B1 EP98403004A EP98403004A EP0921305B1 EP 0921305 B1 EP0921305 B1 EP 0921305B1 EP 98403004 A EP98403004 A EP 98403004A EP 98403004 A EP98403004 A EP 98403004A EP 0921305 B1 EP0921305 B1 EP 0921305B1
Authority
EP
European Patent Office
Prior art keywords
voltage
contactor
winding
supply
starter
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
EP98403004A
Other languages
English (en)
French (fr)
Other versions
EP0921305A3 (de
EP0921305A2 (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
Original Assignee
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 EP0921305A2 publication Critical patent/EP0921305A2/de
Publication of EP0921305A3 publication Critical patent/EP0921305A3/de
Application granted granted Critical
Publication of EP0921305B1 publication Critical patent/EP0921305B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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 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
    • F02N2200/06—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 the control of the supply of the winding of a starter switch of motor vehicle.
  • the starter's electric motor has been referenced there by M. It is mounted between earth and a + Bat terminal at the battery supply voltage.
  • the power supply to motor M is controlled by a contactor C, which is a relay consisting of a contact power 3 controlled by a holding coil 1 and a call winding 2.
  • the power contact 3 is for example interposed between motor M and voltage supply terminal + Bat.
  • a common end of the call and hold 1 and 2 is connected to the power supply terminal + Bat, for example by a start switch 4, which is usually a key switch.
  • the holding coil 1 is connected to ground, the call winding 2 being meanwhile connected to a point between contact 3 and motor M.
  • the electronic control of the contactor allows use only one winding. This is illustrated by the assembly shown in Figure 2, in which the contact of power 3 of contactor C is controlled in motion by a supply winding B, which is mounted between the ground and the + Bat supply terminal at the voltage of the drums.
  • the supply of this coil B is itself controlled by a management unit U, which activates a controlled switch S.
  • This management unit U is usually a microprocessor, including an "e” input is for example connected to the terminal + Bat by via the start switch 4 and of which an output "s" controls the switch S, which is by example a MOSFET type transistor.
  • the microprocessor U implements a number operations to ensure that the starter is in state of being activated, then the transistor S is controlled by pulse width signal (PWM or “Pulse Width Modulation” according to the terminology generally used), this command allowing to generate on the winding 3 a law of predetermined tension to ensure advancement to reduced speed of the moving core.
  • PWM pulse width signal
  • FIG. 3a A closing sequence of the start-up 4 is illustrated in FIG. 3a and we have shown in Figure 3b opposite an example of the evolution over time of the average supply current Ic circulating in the winding B during this sequence of closing.
  • Figure 3c illustrates the sequence of closing the power contact 3 which corresponds to this diet.
  • the PWM command from microprocessor U reduces the current in coil B to a minimum value "im" which ensures the maintenance of the magnetic circuit in closed state.
  • An object of the invention is therefore to resolve this problem.
  • the invention proposes an order power supply which minimizes so substantial winding overheating while ensuring a highly reliable closure.
  • the invention proposes a method for the control of the winding supply of a contactor motor vehicle starter, according to which supplies said winding according to a call mode intended for close said contactor, then in a holding mode intended to keep said contactor closed, characterized in that we measure a voltage corresponding to the voltage the starter electric motor, that a fall corresponding to this voltage is detected at the closure of the contactor and in that the winding of the contactor in hold mode after a predetermined time after detection of the fall of voltage.
  • the voltage corresponding to the voltage starter electric motor supply is measured in a sampled fashion and, to detect the voltage drop, the difference is compared to a threshold between two successive voltage measurements.
  • the threshold corresponds to a voltage drop of the order of 1 Volt.
  • the invention also relates to a device for control of the power supply of an electric motor vehicle starter having a contactor which is a relay which includes a power contact and a winding, as well as a management unit intended for successively control the supply of said winding according to a call mode intended to close said contactor, then according to a maintenance mode intended to maintain said closed contactor, said management unit measuring a voltage which, when starting is ordered, corresponds to the supply voltage to the motor electric starter and controlling the supply of electric motor depending in particular on this voltage, characterized in that said management unit comprises means for implementing the above method.
  • the winding supply is controlled by a MOSFET type transistor, the gate is controlled by a pulse voltage at modulated width generated by the management unit.
  • the management unit includes means for controlling the closing of the transistor, during winding supply in call mode.
  • the invention also relates to a starter for motor vehicle, characterized in that it comprises a control device of the aforementioned type.
  • the command sequence which is illustrated on the Figure 4 is implemented by the control means of single coil power supply B which are illustrated in Figure 2, i.e. by the controlled switch S and the management unit U, the latter being programmed to control said transistor S according to the command sequence which will now be described.
  • step I in FIG. 4 the management unit U is put powered up and initializes (step II).
  • the voltage + Bat that it receives on its input "e” is sampled and digitally converted.
  • the numerical values thus obtained for the voltage + Bat are processed by the unit U, said unit U generating on its output “s” a PWM voltage for controlling the gate of transistor S which is notably a function of these voltage values + Bat.
  • the unit U compares the difference (+ Bat i - + Bat i + 1 ) between two successive voltage measurements + Bat i and + Bat i + 1 (where i is a silent index associated with successive samplings), to a given dU threshold (test IV).
  • transistor S is controlled so that the current Ic is greater than im (step III).
  • Coil B can for example then be put under full tension, the management unit U then commanding the total closure of transistor S.
  • unit U changes the duty cycle of its voltage PWM output, so as to control the transistor S for that the current in the coil B is maintained at its value im (step VI), after a time delay for a period T1 (step V).
  • the value of im is chosen sufficient to keep the magnetic circuit closed.
  • dU The value of dU is chosen to allow detect the voltage drop produced by closing the contact 3.
  • the value of the threshold dU is for example chosen for correspond to 1 Volt.
  • time delay T1 between detection of closing contact 3 and switching to mode maintenance prevents rebounds and ensure that the contactor is effectively closed, when you go into hold mode.

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  • 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)
  • Relay Circuits (AREA)
  • Control Of Electric Motors In General (AREA)

Claims (7)

  1. Verfahren zur Steuerung der Stromversorgung der Wicklung eines Einrückrelais (C) eines Kraftfahrzeuganlassers, bei dem die besagte Wicklung nach einem Einzugsmodus, der dazu bestimmt ist, das besagte Einrückrelais (C) zu schließen, und anschließend nach einem Haltemodus mit Strom versorgt wird, der dazu bestimmt ist, das besagte Einrückrelais (C) geschlossen zu halten, dadurch gekennzeichnet, d a ß eine Spannung entsprechend der Speisespannung (+B) des Elektromotors (M) des Anlassers gemessen wird, d a ß an dieser Spannung ein Spannungsabfall entsprechend dem Schließen des Einrückrelais (C) erfaßt wird und d a ß die Wicklung (B) des Einrückrelais (C) im Haltemodus nach Ablauf einer vorbestimmten Zeit nach der Erfassung des Spannungsabfalls mit Strom versorgt wird.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, d a ß die Spannung entsprechend der Speisespannung des Elektromotors (M) des Anlassers durch Abtasten gemessen wird und d a ß zur Erfassung des Spannungsabfalls die Differenz zwischen zwei aufeinanderfolgenden Spannungsmessungen mit einem Schwellenwert (dU) verglichen wird.
  3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, d a ß der Schwellenwert einem Spannungsabfall in einer Größenordnung von 1 Volt entspricht.
  4. Vorrichtung zur Steuerung der Stromversorgung eines Elektromotors (M) eines Kraftfahrzeuganlassers, umfassend ein Einrückrelais (C), bei dem es sich um ein Relais handelt, das einen Leistungskontakt und eine Wicklung (B) umfaßt, sowie eine Regelungseinheit (U), deren Aufgabe darin besteht, nacheinander die Stromversorgung der besagten Wicklung (B) nach einem Einzugsmodus, der dazu bestimmt ist, das besagte Einrückrelais (C) zu schließen, und anschließend nach einem Haltemodus zu steuern, der dazu bestimmt ist, das besagte Einrückrelais (C) geschlossen zu halten, wobei die besagte Regelungseinheit (U) eine Spannung mißt, die beim Ansteuern des Anlassens der Speisespannung des Elektromotors (M) des Anlassers entspricht, und die Stromversorgung des Elektromotors insbesondere (M) in Abhängigkeit von dieser Spannung steuert, dadurch gekennzeichnet, d a ß die besagte Regelungseinheit (U) Mittel umfaßt, um das Verfahren nach einem der vorangehenden Ansprüche anzuwenden.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, d a ß die Stromversorgung der Wicklung (B) durch einen MOSFET-Transistor (S) gesteuert wird, dessen Gate durch eine durch die Regelungseinheit (U) erzeugte Spannung mit Pulsweitenmodulation gesteuert wird.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, d a ß die Regelungseinheit (U) Mittel umfaßt, um das Schließen des Transistors (S) bei der Stromversorgung der Wicklung (B) im Einzugsmodus anzusteuern.
  7. Kraftfahrzeuganlasser, dadurch gekennzeichnet, d a ß er eine Steuervorrichtung nach einem der Ansprüche 4 bis 6 umfaßt.
EP98403004A 1997-12-03 1998-12-01 Verfahren und Vorrichtung zur Steuerung des Stromzufuhrs einer Schalterwicklung für Kraftfahrzeuganlasser Expired - Lifetime EP0921305B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9715222 1997-12-03
FR9715222A FR2771780B1 (fr) 1997-12-03 1997-12-03 Procede et dispositif pour la commande de l'alimentation du bobinage d'un contacteur de demarreur de vehicule automobile

Publications (3)

Publication Number Publication Date
EP0921305A2 EP0921305A2 (de) 1999-06-09
EP0921305A3 EP0921305A3 (de) 1999-06-16
EP0921305B1 true EP0921305B1 (de) 2003-04-09

Family

ID=9514101

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98403004A Expired - Lifetime EP0921305B1 (de) 1997-12-03 1998-12-01 Verfahren und Vorrichtung zur Steuerung des Stromzufuhrs einer Schalterwicklung für Kraftfahrzeuganlasser

Country Status (6)

Country Link
US (1) US6176212B1 (de)
EP (1) EP0921305B1 (de)
BR (1) BR9805083A (de)
DE (1) DE69813157T2 (de)
ES (1) ES2197438T3 (de)
FR (1) FR2771780B1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2802981B1 (fr) * 1999-12-28 2002-03-29 Valeo Equip Electr Moteur Procede et dispositif d'alimentation de contacteur de demarreur electrique de vehicule automobile a comportement determinable
US6364281B1 (en) * 2000-03-22 2002-04-02 Eaton Corporation Method of energizing solenoid operated valves
DE10034779A1 (de) * 2000-07-18 2002-01-31 Bosch Gmbh Robert Ansteuervorrichtung für Starter von Verbrennungsmotoren
US7857281B2 (en) * 2006-06-26 2010-12-28 Incova Technologies, Inc. Electrohydraulic valve control circuit with magnetic hysteresis compensation
FR2913727B1 (fr) * 2007-03-16 2009-05-08 Valeo Equip Electr Moteur Dispositif de commande d'un demarreur de vehicule automobile
US9528487B2 (en) 2011-11-17 2016-12-27 Ford Global Technologies, Llc Starter motor control with pre-spin
WO2014055530A1 (en) 2012-10-01 2014-04-10 Thermo King Corporation Methods and systems for starting an electrically controlled engine of a transport refrigeration system
US10001103B1 (en) * 2016-12-15 2018-06-19 Borgwarner, Inc. System with multiple starters and smart relay

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4026232C2 (de) * 1990-08-18 2003-09-04 Bosch Gmbh Robert Einrichtung zur Überwachung eines Drehzahlgebers
IT1263110B (it) * 1992-03-24 1996-07-30 Magneti Marelli Spa Sistema di avviamento per un motore a combustione interna e solenoide utilizzabile in tale sistema di avviamento
DE4344355A1 (de) * 1993-01-16 1994-07-21 Volkswagen Ag Starteinrichtung für eine Brennkraftmaschine mit einem elektrischen Startermotor
US5622148A (en) * 1995-12-04 1997-04-22 Ford Motor Company Control for a motor vehicle cranking system
FR2746449B1 (fr) * 1996-03-21 1998-06-12 Valeo Equip Electr Moteur Procede et dispositif pour la commande d'un contacteur d'alimentation d'un demarreur de vehicule automobile

Also Published As

Publication number Publication date
FR2771780A1 (fr) 1999-06-04
DE69813157D1 (de) 2003-05-15
ES2197438T3 (es) 2004-01-01
US6176212B1 (en) 2001-01-23
DE69813157T2 (de) 2003-11-20
BR9805083A (pt) 1999-12-14
EP0921305A3 (de) 1999-06-16
EP0921305A2 (de) 1999-06-09
FR2771780B1 (fr) 2000-02-18

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