EP0090984B1 - Moteur à combustion interne pourvu d'un appareil central électronique de commande - Google Patents

Moteur à combustion interne pourvu d'un appareil central électronique de commande Download PDF

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Publication number
EP0090984B1
EP0090984B1 EP83102687A EP83102687A EP0090984B1 EP 0090984 B1 EP0090984 B1 EP 0090984B1 EP 83102687 A EP83102687 A EP 83102687A EP 83102687 A EP83102687 A EP 83102687A EP 0090984 B1 EP0090984 B1 EP 0090984B1
Authority
EP
European Patent Office
Prior art keywords
temperature
circuit
switch
combustion engine
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
Application number
EP83102687A
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German (de)
English (en)
Other versions
EP0090984A3 (en
EP0090984A2 (fr
Inventor
Paul John Slezak
Marcel Joseph Paul Emile Durand
Robert Paul Dunlop
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.)
Khd Canada Inc Deutz R & D Devision
Original Assignee
Khd Canada Inc Deutz R & D Devision
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 Khd Canada Inc Deutz R & D Devision filed Critical Khd Canada Inc Deutz R & D Devision
Priority to AT83102687T priority Critical patent/ATE30937T1/de
Publication of EP0090984A2 publication Critical patent/EP0090984A2/fr
Publication of EP0090984A3 publication Critical patent/EP0090984A3/de
Application granted granted Critical
Publication of EP0090984B1 publication Critical patent/EP0090984B1/fr
Expired 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
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition
    • F02P19/02—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs

Definitions

  • the invention relates to an internal combustion engine according to the preamble of claim 1.
  • Such an internal combustion engine with a control device for controlled heating of the glow plugs is known from DE-A 2 743 509.
  • the control device only includes the heating phase of the glow plugs or the power supply to the glow plugs after the desired glow temperature has been reached.
  • Other influences that are required for smooth operation of a diesel internal combustion engine are not addressed in the known control device.
  • a charge control for a hydrodynamic coupling of a cooling fan which consists of a control device that processes a large number of measured values and which clocks a valve that blocks the inflow to the coupling.
  • the object according to the invention combines the control device for the controlled heating of the glow plugs and a control device for adjusting the speed of the cooling fan to form central electronics with common components.
  • a common pulse generator is used on the one hand via the control device to actuate an interrupter switch in the circuit of the glow plugs and on the other hand via the control device to actuate the valve in the inflow line to the hydrodynamic coupling.
  • the pulses of the pulse generator control the indicator light of the glow system flashing via a monitoring circuit if there are errors detected by the monitoring circuit.
  • the electrical switch is connected to the vehicle electrical system via an electronic switch, the electronic switch in the driving position of the operating switch from a rapid heating circuit for maximum power supply to the glow plugs and a glow circuit for keeping the glow plug temperature constant and in the start position of the operating switch from a compensation circuit to compensate for the voltage drop during the starting process.
  • the glow plug system for example in a multi-cylinder reciprocating internal combustion engine with one glow plug per cylinder, several relays can be provided for actuating the glow plugs. If, for example, a central annealing system, in particular a flame annealing system, is provided, a relay is sufficient. Due to the different control of the electronic switch or switches, almost all important influencing variables can be taken into account. It is therefore advantageously possible to heat up the annealing system as quickly as possible, then to supply it with the necessary power as a function of the battery voltage and to take voltage drops into account when starting the internal combustion engine. These voltage drops can be very significant depending on the temperature and would lead to a reduction in the glow output of the glow system. Furthermore, the compensation of the battery voltage drop counteracts cooling of the glow system by the freshly sucked-in air, which, depending on the outside temperature, triggers a temperature drop at the glow plugs before the reciprocating internal combustion engine actually starts.
  • the rapid heating circuit advantageously has a temperature-dependent resistor (thermistor) for determining the rapid heating time, the rapid heating time being determined automatically as a function of the outside temperature and the battery voltage.
  • the temperature characteristic of the thermistor is adapted to the temperature characteristic of the glow system. This ensures that regardless of the operator, the electronic central control unit automatically determines the rapid heating time for the glow plugs depending on the respective outside temperature and the battery voltage, since the thermistor also reacts to the respective outside temperatures and battery voltage and therefore takes a different amount of time to reach the specified one To achieve temperature or the temperature-dependent change in resistance.
  • the thermistor further ensures that even in the event of an arbitrary interruption of the rapid heating time, for example because the operator switches the operating switch off again and thus briefly interrupts the heating time of the glow system, the interrupted remaining glow time is taken into account and does not lead to incorrect rapid heating of the glow system, since the thermistor, taking into account the temperature characteristic of the glow system, also takes the glow time or the remaining glow energy into account and shortens the renewed rapid heating time accordingly.
  • the glow circuit is advantageously connected to the pulse generator, as a result of which a gate control is formed which varies the pulse width as a function of the battery voltage. This ensures that the glow system is supplied with the correct power according to the battery voltage.
  • a further electronic switch for controlling the relay is provided, which is controlled by a limit temperature circuit which is connected to sensors for detecting influencing variables of the internal combustion engine. Since the glow circuit and the rapid heating circuit are continuously switched on in the driving position of the operating switch, the glow system continues to be operated even after the internal combustion engine has started and is regulated to the desired temperature by the glow circuit in conjunction with the pulse generator. This ensures that the internal combustion engine reaches a more favorable warm-up phase after starting, which eliminates the undesirable "white smoke in direct-injection internal combustion engines". This also results in improved exhaust gas values. If the sensors of the influencing variables, for example the component temperatures of the internal combustion engines, report a predetermined temperature, the power supply to the relay of the glow system is interrupted by the further electronic switch.
  • a circuit for setting the operating points is assigned to each of the sensors, which means that the sensors can be set to the control device. Furthermore, the circuits for setting the operating points in connection with the pulse generator form pulses which control an electronic switch of the electromagnetic directional control valve, the pulse width varying depending on the temperatures of the sensors.
  • the hydraulic drive of the cooling air blower is supplied with hydraulic fluid so that the speed of the cooling air blower is controlled accordingly. The speed has only very slight fluctuations, since the hydrodynamic coupling usually has a constant outflow and the electromagnetic directional valve is arranged in the hydraulic feed line, as a result of which the oil level in the hydrodynamic coupling varies.
  • the pulse width can vary from «zero» to almost «constant».
  • the monitoring circuit controls an electrical switch in the sense of the blinking lighting of the indicator light, which alerts the operator to the error.
  • 1 denotes an air-cooled internal combustion engine which operates on the diesel principle.
  • the internal combustion engine is supplied with cooling air via a cooling air blower designated by 2.
  • a hydrodynamic coupling denoted by 3 is installed, which, not shown in detail, has a constant outflow in a known manner and a hydraulic inlet controlled by an electromagnetic directional valve denoted by 4.
  • the filling quantity of the hydrodynamic coupling is varied or reduced to zero by an increased or reduced inflow, so that the speed of the cooling air fan varies accordingly.
  • the internal combustion engine has one glow plug 5 of a glow system per reciprocating piston unit.
  • the glow plugs 5 are assigned a relay designated 6 as an electrical switch, which is controlled by an electronic central control device designated 7.
  • the electronic central control device 7 also controls the electromagnetic directional valve 4 (FIG. 2).
  • the electronic central control device can be fastened to components of the vehicle both on the reciprocating piston internal combustion engine and, if the reciprocating piston internal combustion engine is arranged on a vehicle.
  • a control lamp designated 8 is connected, which in turn is arranged at a distance from the electronic central control device 7, for example when the reciprocating piston internal combustion engine is installed in a vehicle, in the driver's cab of the vehicle.
  • the electronic central control device 7 is controlled by a stop-drive-start operating switch 9, which is arranged at a location which is easily accessible to the operator, for example in the driver's cab.
  • FIG. 3 which shows the circuit of the electronic central control unit 7, the stop-drive-start operating switch, also designated 9, is shown in more detail, 9a denoting the stop position, 9b denoting the travel position and 9c denoting the start position.
  • the electrical switch (relay 6) is also designed in more detail so that its switching can be recognized.
  • the glow plugs 5, not shown in FIG. 3, are connected to the outputs 10 provided with arrows.
  • the control lamp 8 and the directional valve 4 are drawn into the circuit for the sake of simplicity.
  • the central power supply line 11 is connected to batteries which take over the power supply of the system.
  • a known protective circuit 12 is connected against high voltage peaks, which can occur due to the alternator or by switching the vehicle's consumption on and off.
  • the stop-drive-start operating switch is also connected to the central power supply 11.
  • the driving position 9b is the electromagnetic directional valve 4, the Kon trolleucht 8, as well as a rapid heating circuit 13 for maximum power supply to the glow system, a glow circuit 14 and a voltage-stabilizing power supply 15 for the central control unit 7, with a compensation circuit 16 of the battery voltage drop when the internal combustion engine is connected in addition to an electric starter motor, not shown, connected to the starting position 9c .
  • the outputs 13a of the rapid heating circuit 13, 14a of the glow circuit 14 and 16a of the compensation circuit 16 of the battery voltage drop are connected to an electronic switch 17 and control it separately.
  • the electronic switch 17 is installed in a control line 18 of the relay 6.
  • An electronic switch 19 is installed in the control line 18 in series with the electronic switch 17.
  • the output 13a of the rapid heating circuit 13 is also connected to a switch 20 which is located in a connecting line 21 from the control line 18 to the supply line for the control lamp 8.
  • a triangular voltage generator is designated by 22, which is connected to the glow circuit 14 for the power for supplying the glow system, which results in a gate control which varies the pulse width of the output 14a as a function of the battery voltage change.
  • the rapid heating circuit 13 has a temperature-dependent resistor (thermistor), which is not shown in FIG. 3.
  • the rapid heating time is determined by this thermistor.
  • the output 14a takes over the control of the electronic switch 17, the pulse width varying depending on the battery voltage in such a way that the glow plugs glow almost constantly. If the operator switches the stop-drive-start control switch back to the stop position 9a and then back to the drive position 9b, the circuits 13 and 14 start again, the rapid heating time being determined as a function of the residual temperature detected by the resistance of the thermistor .
  • the switch 20 is switched on, as a result of which the control lamp 8 lights up and gives the operator the information that the glow plugs have not yet reached their intended temperature and that the reciprocating piston internal combustion engine should not be started.
  • the operator can move the stop-drive-start control switch into the start position 9c, whereby the rapid heating circuit 13 and the glow circuit 14 are switched off and a starter motor and the compensation circuit 16 are switched on, the output 16a of which is also the electronic switch 17 controls. Since the battery voltage can drop considerably depending on the outside temperature at which the reciprocating piston internal combustion engine is to be started, the circuit 16 provides the glow system with a power supply such that the glow plugs are kept sufficiently hot. At the same time, it is taken into account that the glow plugs also cool down during the starting process, since cold air is sucked in at the start.
  • sensors 23 and 24 for detecting the cylinder head temperature of the first and last cylinder of a multi-cylinder internal combustion engine, a sensor 25 for detecting the oil temperature of the internal combustion engine and a sensor 26 for detecting the oil temperature of a downstream automatic transmission are provided.
  • the respective highest temperature of the sensors is decisive for the control of the cooling air blower.
  • the output 27a of the pulse width circuit is connected to an electronic switch 28 which controls the electromagnetic directional valve 4.
  • the measuring transducers 23 to 26 are also assigned a monitoring circuit 29, which, since the measuring transducers are designed as sensors with a negative temperature coefficient, generates an output signal when the lines to the measuring transducers break, which actuates the electronic switch 28 and an electronic one designated 30 Controls signal switch, which is arranged in the circuit of the control lamp 8.
  • the electronic central control unit 7 also has a square-wave generator 31 which, in conjunction with the monitoring circuit, forms a flashing circuit 32 which controls the electronic signal switch 30 and thus switches the control lamp 8 as a flashing lamp.
  • a limit temperature circuit designated 33, is also connected, the output of which controls the electronic switch 19, so that when a predetermined temperature of the cylinder heads is reached, the relay 6 is switched off, even if the circuits 13, 14 and 16 operate the electronic switch 17 in the sense of switching on.

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  • 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)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Control Of Temperature (AREA)

Claims (7)

1. Moteur à combustion interne notamment moteur Diesel (1) comportant une bougie de réchauffage (5) par cylindre, bougies qui sont alimentées en vue du réchauffage par le réseau électrique embarqué, les bougies de réchauffage (5) étant reliées au réseau électrique par l'intermédiaire d'un commutateur électrique (6) qui est commandé par une installation de réglage et celle-ci, au cours de la première phase et jusqu'à ce que l'on atteigne une température prédéterminée au niveau de la bougie de réchauffage, ferme le commutateur (6) et qui au cours d'une seconde phase lorsqu'on atteint la température de bougie de réchauffage, fonctionne de manière intermittente, l'installation de réglage étant reliée à un commutateur arrêt/déplacement/démarrage (9) et à un générateur d'impulsions (22) dont les signaux im- pulsionnels de sortie sonttraités pour commander le commutateur (6) des bougies de réchauffage (5) ainsi qu'un voyant de contrôle (8) alimenté par l'installation de réglage de manière à rester éclairé en permanence de façon constante au cours d'une première phase, voyant qui est éteint dans la seconde phase, caractérisé par: un appareil de réglage central (7) qui est formé de la réunion de l'installation de réglage et d'une installation de commande, l'installation de commande servant à commander la vitesse de rotation d'un ventilateur de refroidissement (2) du moteur à combustion interne entraîné par un embrayage hydraulique (3) et l'embrayage (3) est relié par une vanne électromagnétique (4) au circuit de fluide hydraulique, cette électrovanne étant commandée en fonction des paramètres de fonctionnement du moteur à combustion interne (1) par des impulsions périodiques provenant de l'installation de commande, et par l'envoi des impulsions du générateur d'impulsions (22), d'une part à l'installation de réglage pour commander le commutateur électrique (6) et d'autre part à l'installation de commande pour commander l'électrovanne (4) de l'embrayage hydraulique (2) et en outre en cas d'incident dans l'appareil central, par un circuit de surveillance relié au voyant de contrôle et qui éclaire celui-ci de manière intermittente par des impulsions.
2. Moteur à combustion interne selon la revendication 1, caractérisé en ce que le commutateur électrique (6) est relié au réseau du véhicule par l'intermédiaire d'un commutateur électronique (17), et lorsque le commutateur (9) est en position de déplacement, le commutateur électronique (17) est commandé par un circuit de chauffage rapide (13) pour assurer l'alimentation électrique maximale des bougies de réchauffage (5) et par un circuit de réchauffage (14) pour maintenir constante la température des bougies de réchauffage et lorsque le commutateur (9) est en position de démarrage, il est commandé par un circuit de compensation (16) pour compenser la chute de tension au moment du démarrage.
3. Moteur à combustion interne selon la revendication 2, caractérisé en ce que le circuit de chauffage rapide (13) comporte une résistance dépendant de la température (thermistance) pour déterminer le temps de chauffage rapide, thermistance dont la caractéristique de température est adaptée à la caractéristique de température des bougies de réchauffage (5).
4. Moteur à combustion interne selon les revendications 1 et 2, caractérisé en ce que le circuit de réchauffage (14) est relié au générateur d'impulsions (22) pour maintenir constante la température des bougies de réchauffage et forme un circuit de découpage qui modifie la largeur des impulsions envoyées au commutateur électronique (17) en fonction de la tension de la batterie.
5. Moteur à combustion interne selon l'une des revendications 2 à 4, caractérisé par un circuit de coupure électronique (19) en série sur le commutateur électronique (17), circuit qui est commandé par un circuit de température limite (33) lui-même relié à des capteurs (23, 24) pour détecter les paramètres de fonctionnement du moteur à combustion interne (1).
6. Moteur à combustion interne selon l'une des revendications 1 à 5, caractérisé en ce que l'installation de commande comporte un circuit-modulateur de largeur d'impulsions (27) qui est relié au générateur d'impulsions (22) et aux capteurs (23... 26) pour détecter les différences températures du moteur à combustion interne, chaque capteur étant associé à un circuit (23a ... 26a) pour régler les points de fonctionnement et la largeur des impulsions de l'un des commutateurs électriques (28) pour les signaux de sortie commandant l'électrovanne (4), de manière variable en fonction des signaux des capteurs (23 ... 26).
7. Moteur à combustion interne selon l'une des revendications 1 à 6, caractérisé en ce qu'au moins une partie des capteurs (23 ... 26) est associée à la fois à l'installation de commande et à l'installation de réglage pour détecter les paramètres de fonctionnement du moteur à combustion interne.
EP83102687A 1982-04-03 1983-03-18 Moteur à combustion interne pourvu d'un appareil central électronique de commande Expired EP0090984B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83102687T ATE30937T1 (de) 1982-04-03 1983-03-18 Hubkolbenbrennkraftmaschine mit einem elektronischen zentralregelgeraet.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823212504 DE3212504A1 (de) 1982-04-03 1982-04-03 Hubkolbenbrennkraftmaschine mit einem elektronischen zentralregelgeraet
DE3212504 1982-04-03

Publications (3)

Publication Number Publication Date
EP0090984A2 EP0090984A2 (fr) 1983-10-12
EP0090984A3 EP0090984A3 (en) 1984-04-11
EP0090984B1 true EP0090984B1 (fr) 1987-11-19

Family

ID=6160200

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83102687A Expired EP0090984B1 (fr) 1982-04-03 1983-03-18 Moteur à combustion interne pourvu d'un appareil central électronique de commande

Country Status (7)

Country Link
US (1) US4487169A (fr)
EP (1) EP0090984B1 (fr)
JP (1) JPS5941675A (fr)
AT (1) ATE30937T1 (fr)
CA (1) CA1194183A (fr)
DE (2) DE3212504A1 (fr)
YU (1) YU74283A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3335257A1 (de) * 1983-09-29 1985-04-18 Klöckner-Humboldt-Deutz AG, 5000 Köln Regelungsanordnung zur temperaturabhaengigen fuellungsaenderung einer hydrodynamischen kupplung
DE3502966A1 (de) * 1984-06-01 1985-12-05 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung zur steuerung und regelung der temperatur einer gluehkerze
US5158050A (en) * 1991-09-11 1992-10-27 Detroit Diesel Corporation Method and system for controlling the energization of at least one glow plug in an internal combustion engine
FR2858026B1 (fr) * 2003-07-24 2006-01-13 Peugeot Citroen Automobiles Sa Procede de gestion de moteur a combustion interne
AT500664B1 (de) * 2005-11-08 2007-06-15 Avl List Gmbh Motorsteuerungseinheit für eine brennkraftmaschine
EP2123901B1 (fr) * 2008-05-21 2013-08-28 GM Global Technology Operations LLC Procédé de commande du fonctionnement de la bougie de préchauffage dans un moteur diesel
JP5660612B2 (ja) * 2011-01-12 2015-01-28 ボッシュ株式会社 グロープラグ先端温度推定方法及びグロープラグ駆動制御装置

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DE2743059A1 (de) * 1977-09-24 1979-04-05 Beru Werk Ruprecht Gmbh Co A Verfahren und anordnung zum schnellaufheizen von gluehkerzen
EP0042333A1 (fr) * 1980-06-16 1981-12-23 ACIERS ET OUTILLAGE PEUGEOT Société dite: Dispositif pour la commande des moyens de ventilation d'un moteur à combustion interne
US4307689A (en) * 1979-09-05 1981-12-29 Champion Spark Plug Company Glow plug control circuit

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FR2323895A1 (fr) * 1975-09-09 1977-04-08 Peugeot Dispositif d'allumage par point chaud pour moteur a combustion interne
US4162669A (en) * 1977-02-22 1979-07-31 Toyota Jidosha Kogyo Kabushiki Kaisha Ignition system for rotary piston engines
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JPS543630A (en) * 1977-06-08 1979-01-11 Mitsubishi Motors Corp Preheating plug control for diesel engine
JPS584191B2 (ja) * 1977-06-29 1983-01-25 いすゞ自動車株式会社 デイ−ゼルエンジンの始動装置
US4137885A (en) * 1977-10-11 1979-02-06 General Motors Corporation Diesel engine glow plug energization control circuit
JPS6060024B2 (ja) * 1977-10-19 1985-12-27 株式会社日立製作所 エンジン制御方法
JPS5750540Y2 (fr) * 1978-04-04 1982-11-05
JPS5730428Y2 (fr) * 1978-06-30 1982-07-03
JPS6045757B2 (ja) * 1978-07-10 1985-10-11 いすゞ自動車株式会社 ディ−ゼル・エンジンの予熱制御装置
JPS5817354B2 (ja) * 1978-09-19 1983-04-06 いすゞ自動車株式会社 ディ−ゼルエンジンの始動促進装置
US4228880A (en) * 1978-09-25 1980-10-21 Eaton Corporation Pulse control of an electro magnetically actuated viscous fluid coupling
JPS55114877A (en) * 1979-02-26 1980-09-04 Diesel Kiki Co Ltd Auxiliary starter of diesel engine
SE8006122L (sv) * 1979-09-05 1981-03-06 Champion Spark Plug Co Anordning for reglering av energitillforseln till glodstift for dieselmotorer
DE2938706A1 (de) * 1979-09-25 1981-04-09 Klöckner-Humboldt-Deutz AG, 5000 Köln Fuellungsregelung fuer eine hydrodynamische kupplung
US4357525A (en) * 1980-02-04 1982-11-02 Texas Instruments Incorporated Glow plug duty cycle modulating apparatus
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JPS56129581U (fr) * 1980-03-03 1981-10-01
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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2743059A1 (de) * 1977-09-24 1979-04-05 Beru Werk Ruprecht Gmbh Co A Verfahren und anordnung zum schnellaufheizen von gluehkerzen
US4307689A (en) * 1979-09-05 1981-12-29 Champion Spark Plug Company Glow plug control circuit
EP0042333A1 (fr) * 1980-06-16 1981-12-23 ACIERS ET OUTILLAGE PEUGEOT Société dite: Dispositif pour la commande des moyens de ventilation d'un moteur à combustion interne

Also Published As

Publication number Publication date
EP0090984A3 (en) 1984-04-11
JPS5941675A (ja) 1984-03-07
EP0090984A2 (fr) 1983-10-12
YU74283A (en) 1987-10-31
CA1194183A (fr) 1985-09-24
DE3374577D1 (en) 1987-12-23
DE3212504A1 (de) 1983-10-13
ATE30937T1 (de) 1987-12-15
US4487169A (en) 1984-12-11

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