EP0921305B1 - Procédé et dispositif pour la commande de l'alimentation du bobinage d'un contacteur de démarreur de véhicule automobile - Google Patents
Procédé et dispositif pour la commande de l'alimentation du bobinage d'un contacteur de démarreur de véhicule automobile Download PDFInfo
- 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
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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
-
- 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
- F02N11/0859—Circuits or control means 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 or control means 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.
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)
- Relay Circuits (AREA)
- Control Of Direct Current Motors (AREA)
- Control Of Electric Motors In General (AREA)
Description
- la figure 1, déjà analysée, illustre un montage de démarreur conforme à un mode de réalisation connu de l'art antérieur ;
- la figure 2, également déjà discutée, illustre un montage de commande électronique de démarreur dont le contacteur comporte un bobinage unique qui réalise à la fois l'appel et le maintien ;
- les figures 3a à 3c illustrent une séquence possible pour l'alimentation du bobinage unique du contacteur du montage de la figure 2 ;
- la figure 4 est un organigramme qui illustre une commande de l'alimentation du bobinage unique du contacteur du montage de la figure 2.
Claims (7)
- Procédé pour la commande de l'alimentation du bobinage d'un contacteur (C) de démarreur de véhicule automobile, selon lequel on alimente ledit bobinage selon un mode d'appel destiné à fermer ledit contacteur (C), puis selon un mode de maintien destiné à maintenir ledit contacteur (C) fermé, caractérisé en ce qu'on mesure une tension correspondant à la tension d'alimentation (+Bat) du moteur électrique (M) du démarreur, en ce qu'on détecte sur cette tension une chute correspondant à la fermeture du contacteur (C) et en ce qu'on alimente le bobinage (B) du contacteur (C) en mode de maintien à l'issue d'un temps prédéterminé après la détection de la chute de tension.
- Procédé selon la revendication 1, caractérisé en ce que la tension correspondant à la tension d'alimentation du moteur électrique (M) du démarreur est mesurée de façon échantillonnée et en ce que pour détecter la chute de tension, on compare à un seuil (dU) la différence entre deux mesures de tension successives.
- Procédé selon la revendication 2, caractérisé en ce que le seuil correspond à une chute de tension de l'ordre de 1 Volt.
- Dispositif pour la commande de l'alimentation d'un moteur électrique (M) de démarreur de véhicule comportant un contacteur (C) qui est un relais qui comprend un contact de puissance et un bobinage (B), ainsi qu'une unité de gestion (U) destinée à commander successivement l'alimentation dudit bobinage (B) selon un mode d'appel destiné à fermer ledit contacteur (C), puis selon un mode de maintien destiné à maintenir ledit contacteur (C) fermé, ladite unité de gestion (U) mesurant une tension qui, lorsque le démarrage est commandé, correspond à la tension d'alimentation du moteur électrique (M) du démarreur et commandant l'alimentation du moteur électrique (M) en fonction notamment de cette tension, caractérisé en ce que ladite unité de gestion (U) comporte des moyens pour mettre en oeuvre le procédé selon l'une des revendications précédentes.
- Dispositif selon la revendication 4, caractérisé en ce que l'alimentation du bobinage (B) est commandée par un transistor (S) de type MOSFET, dont la grille est commandée par une tension à impulsions à largeur modulée générée par l'unité de gestion (U).
- Dispositif selon la revendication 5, caractérisé en ce que l'unité de gestion (U) comportent des moyens pour commander la fermeture du transistor (S), lors de l'alimentation du bobinage (B) en mode d'appel.
- Démarreur de véhicule automobile, caractérisé en ce qu'il comporte un dispositif de commande selon l'une des revendications 4 à 6.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
FR9715222 | 1997-12-03 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0921305A2 EP0921305A2 (fr) | 1999-06-09 |
EP0921305A3 EP0921305A3 (fr) | 1999-06-16 |
EP0921305B1 true EP0921305B1 (fr) | 2003-04-09 |
Family
ID=9514101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98403004A Expired - Lifetime EP0921305B1 (fr) | 1997-12-03 | 1998-12-01 | Procédé et dispositif pour la commande de l'alimentation du bobinage d'un contacteur de démarreur de véhicule automobile |
Country Status (6)
Country | Link |
---|---|
US (1) | US6176212B1 (fr) |
EP (1) | EP0921305B1 (fr) |
BR (1) | BR9805083A (fr) |
DE (1) | DE69813157T2 (fr) |
ES (1) | ES2197438T3 (fr) |
FR (1) | FR2771780B1 (fr) |
Families Citing this family (8)
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 (fr) | 2012-10-01 | 2014-04-10 | Thermo King Corporation | Procédés et systèmes de démarrage d'un moteur à commande électronique d'un système de réfrigération de transport |
US10001103B1 (en) * | 2016-12-15 | 2018-06-19 | Borgwarner, Inc. | System with multiple starters and smart relay |
Family Cites Families (5)
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 |
-
1997
- 1997-12-03 FR FR9715222A patent/FR2771780B1/fr not_active Expired - Fee Related
-
1998
- 1998-12-01 ES ES98403004T patent/ES2197438T3/es not_active Expired - Lifetime
- 1998-12-01 DE DE69813157T patent/DE69813157T2/de not_active Expired - Lifetime
- 1998-12-01 EP EP98403004A patent/EP0921305B1/fr not_active Expired - Lifetime
- 1998-12-02 BR BR9805083-4A patent/BR9805083A/pt active Search and Examination
- 1998-12-03 US US09/204,836 patent/US6176212B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ES2197438T3 (es) | 2004-01-01 |
DE69813157D1 (de) | 2003-05-15 |
DE69813157T2 (de) | 2003-11-20 |
FR2771780B1 (fr) | 2000-02-18 |
EP0921305A3 (fr) | 1999-06-16 |
BR9805083A (pt) | 1999-12-14 |
EP0921305A2 (fr) | 1999-06-09 |
FR2771780A1 (fr) | 1999-06-04 |
US6176212B1 (en) | 2001-01-23 |
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