EP0317922A1 - Moteur à combustion à allumage par compression - Google Patents

Moteur à combustion à allumage par compression Download PDF

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Publication number
EP0317922A1
EP0317922A1 EP88119266A EP88119266A EP0317922A1 EP 0317922 A1 EP0317922 A1 EP 0317922A1 EP 88119266 A EP88119266 A EP 88119266A EP 88119266 A EP88119266 A EP 88119266A EP 0317922 A1 EP0317922 A1 EP 0317922A1
Authority
EP
European Patent Office
Prior art keywords
combustion engine
internal combustion
glow plug
self
actuator
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.)
Granted
Application number
EP88119266A
Other languages
German (de)
English (en)
Other versions
EP0317922B1 (fr
Inventor
Karl Peter Dipl.-Phys. Schäfer
Bernhardt Dipl.-Ing. Wendt
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.)
robbe GmbH
Original Assignee
robbe GmbH
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 robbe GmbH filed Critical robbe GmbH
Priority to AT8888119266T priority Critical patent/ATE105375T1/de
Publication of EP0317922A1 publication Critical patent/EP0317922A1/fr
Application granted granted Critical
Publication of EP0317922B1 publication Critical patent/EP0317922B1/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
    • 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
    • F02P19/028—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 the glow plug being combined with or used as a sensor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D35/00—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for
    • F02D35/02—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
    • F02D35/025—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining temperatures inside the cylinder, e.g. combustion temperatures
    • F02D35/026—Controlling engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions by determining temperatures inside the cylinder, e.g. combustion temperatures using an estimation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/34—Ultra-small engines, e.g. for driving models
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/0097—Electrical control of supply of combustible mixture or its constituents using means for generating speed signals
    • 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
    • F02P19/025—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 with means for determining glow plug temperature or glow plug resistance

Definitions

  • the invention relates to a self-igniting internal combustion engine with a glow plug.
  • Such internal combustion engines are generally known under the name “diesel engines” and are used in many different ways.
  • Optimizing the way an internal combustion engine works has recently become increasingly important. Effective control of an internal combustion engine can ensure, for example, optimum efficiency, the lowest possible consumption, the most harmless exhaust gas composition, low noise and the longest possible service life.
  • numerous sensors are installed in the internal combustion engine, which supply evaluation electronics with information about the operating behavior of the internal combustion engine. Unfavorable operating values are then either displayed or automatically changed to favorable operating values by actuating actuators. Such facilities are referred to as engine management.
  • a disadvantage of the known internal combustion engines is that the arrangement of sensors causes relatively high costs.
  • the temperature inside an internal combustion engine is particularly instructive. Especially there, however, temperatures can only be measured with great effort using the previously known means.
  • the object of the invention is to design an internal combustion engine with a glow plug in such a way that optimal control and regulation can be carried out with as little effort as possible
  • an electrical resistance ... measuring device for determining the electrical resistance of the glow plug.
  • the temperature of the glow plug can be determined with extremely little effort.
  • the glow plug which is usually required in auto-ignition internal combustion engines to start the internal combustion engine, is used as a temperature sensor, since it changes its electrical resistance as a function of the temperature in the combustion chamber. This allows the temperature in the combustion chamber to be determined without the need for an additional temperature sensor. Thanks to the invention, practically all temperature-dependent effects within the internal combustion engine can be observed and measured.
  • the average temperature of each cylinder can be determined via the resistance of the respective glow plug. This makes it easy to determine combustion irregularities in individual cylinders.
  • the ignition timing is also easy to determine because the ignition causes the temperature of the glow plug to rise due to the burning mixture. A mixture that is too rich or too lean can also be determined via the temperature, because this more or less cools the glow plug when it flows into the combustion chamber, depending on the composition.
  • the resistance measuring device provides information, for example, as to whether the temperature level in the combustion chamber is too high or too low. A much more extensive information about the mode of operation of the internal combustion engine is obtained, however, if, according to an advantageous embodiment of the invention, the resistance measuring device is connected to evaluation electronics for determining operating data of the internal combustion engine on the basis of the temperature which fluctuates periodically with the ignition frequency and thus the correspondingly fluctuating resistance of the glow plug.
  • the resistance measuring device can replace a speed sensor if the evaluation electronics are designed to determine the speed of the internal combustion engine due to the periodic temperature fluctuations of the glow plug.
  • the resistance measuring device could be a transducer for various display instruments, for example a thermometer or a speed display. However, it is also possible to use the resistance measuring device as a measuring value transmitter for an automatic control circuit by the evaluation electronics having at least one actuator for controlling or regulating the internal combustion engine.
  • the actuator can control very different influencing variables, for example the coolant supply.
  • the actuator controls a speed controller.
  • a particularly advantageous engine management system results if the actuator is configured to adjust the mixture of the internal combustion engine.
  • the ignition timing of a self-igniting internal combustion engine can be brought forward if the actuator is designed for the speed-dependent supply of heating current to the glow plug. In such an internal combustion engine, ignition is initiated by periodically heating up the glow plug. This results in a further possibility of influencing the work of the internal combustion engine.
  • the invention allows numerous embodiments. To further clarify its basic principle, one of them is shown very schematically in the drawing and is described below.
  • the drawing shows in section the upper area of a four-stroke, self-igniting internal combustion engine, such as is used for model aircraft.
  • the internal combustion engine has a combustion chamber 3 in a cylinder 1 above a piston 2, into which an inlet channel 4 leads, which is controlled by means of an inlet valve 5.
  • An outlet channel 7 controlled by an exhaust valve 6 leads away from the combustion chamber 3.
  • the fuel is not injected, but rather is introduced into the inlet duct 4 by means of a carburetor 8.
  • a conventional throttle valve 9 is connected upstream of the carburetor 8.
  • a glow plug 10 which is required anyway for starting the internal combustion engine and leads into the combustion chamber 3, simultaneously serves as a sensor for monitoring the internal combustion engine.
  • a voltage source 11 Glow plug 10 leading line 12 an electrical resistance measuring device 13 switched. This measures the current flow through line 12. Since this is directly dependent on the electrical resistance of glow plug 10, which changes with the temperature of glow plug 10, the resistance measuring device provides information about the temperature of the glow plug.
  • evaluation electronics 14 Downstream of the resistance measuring device is evaluation electronics 14, which take into account in particular the fluctuations in the electrical resistance. For example, it can control a display instrument 15, which is, for example, a tachometer. It is also possible that the evaluation electronics 14 compares the value measured by the resistance measuring device 13 with a setpoint from the setpoint generator 16 and immediately actuates an actuator, for example the throttle valve 9.
  • the setpoint generator 16 is the receiving system which receives its control commands from the remote control transmitter .

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)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Electrical Control Of Ignition Timing (AREA)
EP88119266A 1987-11-23 1988-11-19 Moteur à combustion à allumage par compression Expired - Lifetime EP0317922B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT8888119266T ATE105375T1 (de) 1987-11-23 1988-11-19 Selbstzuendende verbrennungskraftmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873739600 DE3739600A1 (de) 1987-11-23 1987-11-23 Selbstzuendende verbrennungskraftmaschine
DE3739600 1987-11-23

Publications (2)

Publication Number Publication Date
EP0317922A1 true EP0317922A1 (fr) 1989-05-31
EP0317922B1 EP0317922B1 (fr) 1994-05-04

Family

ID=6341031

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88119266A Expired - Lifetime EP0317922B1 (fr) 1987-11-23 1988-11-19 Moteur à combustion à allumage par compression

Country Status (4)

Country Link
EP (1) EP0317922B1 (fr)
AT (1) ATE105375T1 (fr)
DE (2) DE3739600A1 (fr)
ES (1) ES2051818T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0603796A2 (fr) * 1992-12-23 1994-06-29 BERU Ruprecht GmbH & Co. KG Installation de démarrage par flamme pour dispositif de combustion interne

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4014966A1 (de) * 1990-05-10 1991-11-14 Kloeckner Humboldt Deutz Ag Motordiagnoseverfahren
DE102007009105B4 (de) * 2007-02-24 2009-04-09 Beru Ag Verfahren zur Motorsteuerung eines Dieselmotors und Motorsteuersystem

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708683A (en) * 1971-05-12 1973-01-02 Thermo King Corp Diesel engine starting switch and circuit
US4002882A (en) * 1975-03-05 1977-01-11 Mccutchen Charles W Heating circuit
US4360765A (en) * 1980-03-07 1982-11-23 Diesel Kiki Kabushiki Kaisha Control circuit for a glow plug assembly serving as an engine preheating means
GB2159578A (en) * 1984-06-01 1985-12-04 Bosch Gmbh Robert Controlling the temperature of a glow plug in an internal combustion engine
US4726333A (en) * 1986-11-28 1988-02-23 Caterpillar Inc. Glow plug alternator control

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56121870A (en) * 1980-03-03 1981-09-24 Diesel Kiki Co Ltd Preheating controller for diesel engine
JPS578360A (en) * 1980-06-19 1982-01-16 Diesel Kiki Co Ltd Glow plug preheating controller
JPS6053798B2 (ja) * 1981-06-10 1985-11-27 株式会社ボッシュオートモーティブ システム グロ−プラグ予熱制御装置
YU115584A (en) * 1984-07-02 1987-06-30 Iskra Sozd Elektro Indus Circuit for automatic controlled glowing device
DE3433367A1 (de) * 1984-09-12 1986-03-20 Robert Bosch Gmbh, 7000 Stuttgart Einrichtung zur steuerung der energiezufuhr zu einer heissen stelle
EP0315934B1 (fr) * 1987-11-09 1994-01-19 Siemens Aktiengesellschaft Méthode pour le réglage de la température des bougies dans un moteur diesel et circuit pour la réalisation de la méthode

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708683A (en) * 1971-05-12 1973-01-02 Thermo King Corp Diesel engine starting switch and circuit
US4002882A (en) * 1975-03-05 1977-01-11 Mccutchen Charles W Heating circuit
US4360765A (en) * 1980-03-07 1982-11-23 Diesel Kiki Kabushiki Kaisha Control circuit for a glow plug assembly serving as an engine preheating means
GB2159578A (en) * 1984-06-01 1985-12-04 Bosch Gmbh Robert Controlling the temperature of a glow plug in an internal combustion engine
US4726333A (en) * 1986-11-28 1988-02-23 Caterpillar Inc. Glow plug alternator control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0603796A2 (fr) * 1992-12-23 1994-06-29 BERU Ruprecht GmbH & Co. KG Installation de démarrage par flamme pour dispositif de combustion interne
EP0603796A3 (fr) * 1992-12-23 1994-11-09 Beru Werk Ruprecht Gmbh Co A Installation de démarrage par flamme pour dispositif de combustion interne.

Also Published As

Publication number Publication date
ES2051818T3 (es) 1994-07-01
DE3889428D1 (de) 1994-06-09
ATE105375T1 (de) 1994-05-15
EP0317922B1 (fr) 1994-05-04
DE3739600A1 (de) 1989-06-01

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