EP0849467B1 - Démarreur muni d'un détecteur électronique du démarrage du moteur - Google Patents

Démarreur muni d'un détecteur électronique du démarrage du moteur Download PDF

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Publication number
EP0849467B1
EP0849467B1 EP97121807A EP97121807A EP0849467B1 EP 0849467 B1 EP0849467 B1 EP 0849467B1 EP 97121807 A EP97121807 A EP 97121807A EP 97121807 A EP97121807 A EP 97121807A EP 0849467 B1 EP0849467 B1 EP 0849467B1
Authority
EP
European Patent Office
Prior art keywords
starter
current
starting process
control electronics
internal combustion
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
EP97121807A
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German (de)
English (en)
Other versions
EP0849467A1 (fr
Inventor
Bernd Ehlers
Detlef Recksieder
Helmut Smolka
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.)
Volkswagen AG
Original Assignee
Volkswagen AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Volkswagen AG filed Critical Volkswagen AG
Publication of EP0849467A1 publication Critical patent/EP0849467A1/fr
Application granted granted Critical
Publication of EP0849467B1 publication Critical patent/EP0849467B1/fr
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 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
    • F02N2200/00—Parameters used for control of starting apparatus
    • F02N2200/04—Parameters used for control of starting apparatus said parameters being related to the starter motor
    • F02N2200/044—Starter current

Definitions

  • the invention relates to a starter for an internal combustion engine according to the Preamble of claim 1 and control electronics therefor.
  • Embodiment In another Embodiment is housed in the starter, a sensor that the speed of the Starter detected and when a certain predetermined high speed is reached Starting process stops.
  • the first embodiment has a relatively high rate of error detections or faults, especially at higher temperatures, since none or too many impulses can arise.
  • the second embodiment is by the Use of a sensor relatively expensive.
  • the object of the present invention is a starter for To provide internal combustion engines that have a starter recognition that manages with relatively simple means and is largely unaffected by faults.
  • the starter for an internal combustion engine has one Control electronics that evaluate the amount of starter current and when a Engine starts of the internal combustion engine interrupts the starting process, even if the operator still maintains the starting process, for example by holding an ignition key in the start position or by pressing a start button. According to the control electronics receives the level of the starter current by tapping a voltage drop on at least one component of the magnetic switch of the Starter occurs.
  • every shunt is in the starter circuit is suitable to determine the level of the starter current, the tap on one of the starter current through which the magnetic switch has part Advantage that the tap on the one hand inexpensive on the magnetic switch and on the other hand with short cable routes can take place in the immediate vicinity of the starter motor, which ensures high operational safety and low interference.
  • the voltage drop at the inlet and outlet of the starter current is preferably at Magnetic switch removed, this preferably on the screw connections of the Magnetic switch (terminals 30 and 45).
  • connections of the control electronics to existing standard Terminals (connections) of the starter or the associated magnetic switch uses the control electronics as an autonomous unit to the already known Starter systems can be retrofitted.
  • the control electronics according to the invention can attach to the housing of a starter, for example, the connections the control electronics to the terminals of the magnetic switch.
  • the starter wiring remains unchanged except that the switching current of the magnetic switch is not supplied directly to the control electronics, but to the control electronics. In this arrangement, the serves as a shunt for the measurement of the starter current Current bridge in the magnetic switch.
  • the starter advantageously has control electronics that one Evaluates the starting process under detection of the starter current, which at the beginning of Starting process is very high and with increasing rotation of the Internal combustion engine then decreases when turning up the Internal combustion engine to drop to the idle current of the starter.
  • the Control electronics according to the invention makes itself a special feature of Rotational resistance of the internal combustion engine to use, namely the Fluctuations from compressing and decompressing the Coming from internal combustion engine.
  • the starter according to the invention is thus Particularly suitable for internal combustion engines that have a turning fluctuating torque curve (recorded torque). This is especially pronounced in reciprocating internal combustion engines. With the fluctuations of the Rotational resistance of the internal combustion engine, the starter must fluctuate Deliver torque.
  • the starter has a corresponding fluctuating Current consumption, which is somewhat higher when the internal combustion engine is compressed than when decompressing.
  • the control electronics With the turning of the engine one correspondingly periodic fluctuations in the current course of the starter, the cease to apply as soon as the starter no longer turns the internal combustion engine (Reaching the self-running speed of the internal combustion engine or disengaging the Starter due to cranking the internal combustion engine).
  • the control electronics now recognizes this lack of regular fluctuations in the starter current depending on the different rotational resistances of the internal combustion engine Position of the crankshaft originate, and aborts the starting process accordingly.
  • the Aborting the starting process can be a small security allowance include, for example, up to 0.3 sec. to ensure that the starting process is finished.
  • a decrease in the starting current and the The starting process can then be ended if in addition to the absence of the periodic Current fluctuations there is also a decrease in the starting current.
  • the value of the starting current can be detected and in addition to The periodic fluctuations in the starter current do not fall below a predetermined current value and / or reaching a lowest current value of the present starter process as a criterion for the end of the start process be used.
  • the starter current is advantageously determined using a Filter that filters (smoothes) very short current fluctuations to ensure reliable detection of the torque-dependent current fluctuations or the current profile (the Power consumption).
  • the speed of the internal combustion engine can also be detected be, the switching off only takes place when the speed of the Internal combustion engine is above a predetermined value, which in particular between 200 and 800 rpm. This value can also be used by others Variables may be dependent, for example on the temperature of the internal combustion engine.
  • the operator of the starting process remains master of the starting process itself, d. H. he can cancel the start process at any time, even during the periodic Fluctuations in the starter current.
  • the Control electronics during the starting process a time derivative of the starting current or record a decrease in the starting current and, if the derivative or decrease is below a predetermined value and also the starting current itself has fallen below the specified value, cancel the starting process.
  • the derivation or Decrease in the starting current is also advantageously determined via a filter, the The time constant is preferably so long that the current fluctuations are smoothed due to the torque fluctuations. This allows the Current consumption when starting the engine safely from the short-term A distinction can be drawn between current draws during a decompression process.
  • a function lock is advantageously used in the control electronics, the one Repeat start only after a waiting time of approx. 0.5 to 4 seconds, especially approx. 2 sec. after an aborted start process or after switching off the Internal combustion engine enables.
  • a function lock of individual or all of the above described occasion-specific switching operations that overrides these functions, so that the start time either by the operator alone or only by some of the above mentioned functions is determined.
  • Such a repeat start is advantageous at least the function that was overridden at the previous start to Switching off the starting process has resulted.
  • the starter is preferably provided with a autonomous control electronics, in particular with control electronics, on or in the Starter itself is integrated, equipped. Since the essentials according to the invention This enables monitoring parameters to be taken directly from the starter a particularly inexpensive construction possible.
  • the starter according to the invention is can be used for all gasoline and diesel engines.
  • the starter can also contain conventional additives, such as a controlled one Have tracks or a thermal overload protection. Because of the lesser Load on the starter according to the invention (starting processes are average several tenths of a second earlier than that controlled by an operator Starting processes canceled and the starter turns up less Idle speed)), the starter can more easily with regard to its strength rating (weaker) than usual starters, so that weight and Cost advantages arise.
  • control electronics for the starting process as an autonomous unit for example can be retrofitted and is downward compatible, designed, belongs to the Invention control electronics, as described above and below.
  • the starter motor 2 (an electric motor) shown, the characteristic curves until the starter motor comes to a standstill under load are recorded.
  • the starter motor 2 (starter) is a 12 V, 1.8 kW version. In normal starter operation, the starter motor is only over approx. the left half of its characteristic range, d. H. operated up to about 500 to 700 A.
  • the usual working range 20 of the starter is between 300 and 500 A, the Idling range 10 is around 100 A. In between (approx. 150 A to 300 A) there is a range 30, which is passed through during operation of the starter motor, but in one relatively short time it takes the engine to idle spin up.
  • Such a starter motor 2 with associated monitoring electronics (control electronics) 3 and a magnetic switch 4 forms a starter 1 for an internal combustion engine (not shown), as is used, for example, in motor vehicles. Furthermore, typical elements are shown in FIG. 1, as are used in the operation of the starter 1 or the internal combustion engine. From a battery 5, a ground line 6 is connected to a generator 7, which serves for the usual power supply (including charging the battery 5) when the internal combustion engine is operating. The positive lead of the battery is connected to an ignition starter lock 8, of which a terminal 50 is live when the ignition starter lock 8 is actuated. The terminal 50 is connected to a terminal 50a of the monitoring electronics, the switching element 9 of which is switched from the terminal 50a to passage to a terminal 50b when the ignition starter lock 8 is closed.
  • Terminal 50b supplies magnetic switch 4 (a relay) with voltage so that it switches between its terminals 30 and 45 for continuity.
  • the switching takes place by means of a magnetic switch bridge 15, which connects the terminal 30 to the terminal 45.
  • the circuit is now closed via a line 11 to the starter motor 2, so that the starter motor is connected to the battery voltage via the mass (apart from voltage drops in the Cables or the magnetic switch bridge 15).
  • the starter motor 2 comes into engagement with the internal combustion engine and rotates together with it, as shown in FIG. 2, the current I flowing through the starter motor 2 decreasing over time t as the rotational speed n M of the internal combustion engine increases.
  • the monitoring electronics 3 By measuring the voltage drop at the magnetic switch bridge 15 via the terminals 30 and 45, which are directly in series with the starter motor 2, the monitoring electronics 3 the current flow through the starter motor 2 is known.
  • the voltage drop at the magnetic switch bridge 15 can be removed very inexpensively, since there are screw connections at the terminals 30 and 45.
  • the lines of the monitoring electronics 3 for tapping the voltage drop can easily be screwed together with the positive line of the battery 5 to the terminal 30 or the line 11 to the terminal 45.
  • the monitoring electronics 3 can thus be connected without intervention in the starter 2 or the magnetic switch 4.
  • Such monitoring electronics 3 represent an autonomous unit which can be connected to an existing starting system or separated from it again, the function of the starting process always being retained.
  • the current flow through the starter motor 2 has fluctuations 12 which result from different rotational resistances (absorbed torque) of the internal combustion engine, due to compression (high current, high torque) and subsequent decompression (low torque, low current).
  • fluctuations 13 in the rotational speed of the internal combustion engine which are phase-shifted by 180 °, since the latter revs up more easily at a lower rotational resistance (decompression) and requires less power (torque) from the starter motor 2.
  • the starter motor 2 disengages, so that it reaches its idling speed and idling current 10 in a short time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)

Claims (10)

  1. Démarreur pour un moteur à combustion interne comprenant une électronique de commande (3), qui analyse une opération de démarrage en détectant l'intensité d'un courant de démarreur (I) et à la détection d'un lancement (14) du moteur à combustion interne, interrompt l'opération de démarrage et comprenant un interrupteur magnétique (4) parcouru par le courant du démarreur (I), caractérisé en ce que l'électronique de commande (3) obtient l'intensité du courant de démarreur (I) par le biais d'une chute de tension sur au moins un composant (15) de l'interrupteur magnétique (4) parcouru par le courant de démarreur (I).
  2. Démarreur selon la revendication 1, caractérisé par un prélèvement de la chute de tension au niveau de l'entrée (KL30) et de la sortie (KL45) du courant de démarreur (I) sur l'interrupteur magnétique (4).
  3. Démarreur selon la revendication 1 ou 2,
    caractérisé en ce qu'au moins un prélèvement de la chute de tension, de préférence deux prélèvements de la chute de tension sont effectués par le biais d'un raccord de serrage en particulier un raccord à vis.
  4. Démarreur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'électronique de commande (3) détecte une récurrence régulière d'augmentations et de diminutions (12) du courant de démarreur (I), qui proviennent de couples de rotation du moteur à combustion interne dépendant de l'angle de rotation, et en ce que l'interruption s'effectue lors d'une absence (en 14) de la récurrence régulière des augmentations et diminutions du courant de démarreur.
  5. Démarreur selon la revendication 4, caractérisé en ce que l'électronique de commande (3) détecte pendant l'opération de démarrage également une diminution (30) du courant de démarreur (I) et interrompt alors l'opération de démarrage seulement lorsqu'il se produit également une diminution prédéfinie du courant de démarreur.
  6. Démarreur selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'électronique de commande (3) pendant l'opération de démarrage détecte une dérivation dans le temps du courant de démarreur et interrompt l'opération de démarrage en dessous d'une valeur négative prédéfinie de la dérivation pour un courant de démarreur en dessous d'une valeur de courant de démarreur prédéfinie, ou pour une diminution prédéfinie dans le temps du courant de démarreur en dessous de la valeur prédéfinie du courant de démarreur.
  7. Démarreur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'électronique de commande (3) détecte aussi pendant l'opération de démarrage la vitesse de rotation (nM) du moteur à combustion interne et l'interruption ne s'effectue que lorsque la vitesse de rotation (nM) du moteur à combustion interne se trouve au-dessus d'une valeur prédéfinie.
  8. Démarreur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'électronique de commande (3) est mise hors fonction lors d'une répétition de l'opération de démarrage dans une limite de temps prédéterminée.
  9. Démarreur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'électronique de commande (3) autorise une opération de démarrage seulement après l'écoulement d'une durée prédéterminée après une opération de démarrage précédente ou après un arrêt du moteur à combustion interne.
  10. Démarreur selon l'une quelconque des revendications précédentes, caractérisé en ce que l'électronique de commande est réalisée sous forme d'une unité autonome, en particulier sur le démarreur.
EP97121807A 1996-12-18 1997-12-11 Démarreur muni d'un détecteur électronique du démarrage du moteur Expired - Lifetime EP0849467B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19652722 1996-12-18
DE19652722 1996-12-18

Publications (2)

Publication Number Publication Date
EP0849467A1 EP0849467A1 (fr) 1998-06-24
EP0849467B1 true EP0849467B1 (fr) 2003-05-14

Family

ID=7815164

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97121807A Expired - Lifetime EP0849467B1 (fr) 1996-12-18 1997-12-11 Démarreur muni d'un détecteur électronique du démarrage du moteur

Country Status (3)

Country Link
EP (1) EP0849467B1 (fr)
DE (1) DE59710081D1 (fr)
ES (1) ES2197290T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007009872A1 (de) * 2007-02-28 2008-09-04 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Erkennen eines Anschleppvorgangs einer Brennkraftmaschine

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19837782A1 (de) * 1998-08-20 2000-02-24 Volkswagen Ag Verfahren und Vorrichtung zum Anlassen einer Brennkraftmaschine
DE10021153C2 (de) * 2000-04-29 2002-05-02 Audi Ag Vorrichtung und Verfahren zum Starten eines Verbrennungsmotors
DE10021154C1 (de) * 2000-04-29 2001-08-09 Audi Ag Vorrichtung und Verfahren zum Starten eines Verbrennungsmotors
US6494277B1 (en) * 2000-11-09 2002-12-17 Ford Motor Company Hybrid electric vehicle system
DE10210537A1 (de) * 2002-03-05 2003-09-18 Volkswagen Ag Anlasserschaltung
DE10218011A1 (de) * 2002-04-23 2003-11-06 Bosch Gmbh Robert Verfahren und Vorrichtung zur Detektion der Beendigung eines Startvorgangs bei einer Brennkraftmaschine eines Kraftfahrzeugs
DE102004029895B4 (de) * 2004-06-17 2014-03-13 Volkswagen Ag Vorrichtung und Verfahren zur Steuerung des Anlassvorgangs in einem Kraftfahrzeug
EP2317101A1 (fr) * 2009-10-29 2011-05-04 Ford Global Technologies, LLC Procédé et système de contrôle de démarrage de moteur

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60175765A (ja) * 1984-02-21 1985-09-09 Nippon Denso Co Ltd スタ−タのオ−バ−ラン防止装置
JPS61192849A (ja) * 1985-02-20 1986-08-27 Fuji Heavy Ind Ltd デイ−ゼルエンジン起動装置
FR2699607B1 (fr) * 1992-12-23 1995-01-20 Valeo Equip Electr Moteur Circuit de commande d'un démarreur de véhicule automobile.
US5345901A (en) * 1993-07-26 1994-09-13 Carrier Corporation Starter motor protection system
DE19503537A1 (de) * 1995-02-03 1996-08-08 Bosch Gmbh Robert Schaltungsanordnung für Startvorrichtung von Brennkraftmaschinen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007009872A1 (de) * 2007-02-28 2008-09-04 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Erkennen eines Anschleppvorgangs einer Brennkraftmaschine
US8584642B2 (en) 2007-02-28 2013-11-19 Bayerische Motoren Werke Aktiengesellschaft Method for detecting a tow start operation of an internal combustion engine

Also Published As

Publication number Publication date
DE59710081D1 (de) 2003-06-18
EP0849467A1 (fr) 1998-06-24
ES2197290T3 (es) 2004-01-01

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