WO1987000240A1 - Method for operating an internal combustion engine - Google Patents

Method for operating an internal combustion engine Download PDF

Info

Publication number
WO1987000240A1
WO1987000240A1 PCT/EP1986/000377 EP8600377W WO8700240A1 WO 1987000240 A1 WO1987000240 A1 WO 1987000240A1 EP 8600377 W EP8600377 W EP 8600377W WO 8700240 A1 WO8700240 A1 WO 8700240A1
Authority
WO
WIPO (PCT)
Prior art keywords
time
gas exchange
coil
computer
exchange valve
Prior art date
Application number
PCT/EP1986/000377
Other languages
German (de)
English (en)
French (fr)
Inventor
Hans Knobloch
Josef Büchl
Original Assignee
Fleck, Andreas
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 Fleck, Andreas filed Critical Fleck, Andreas
Priority to JP61503697A priority Critical patent/JPH07111127B2/ja
Priority to DE8686904141T priority patent/DE3660558D1/de
Publication of WO1987000240A1 publication Critical patent/WO1987000240A1/de

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means

Definitions

  • the invention relates to a method for operating an internal combustion engine according to the preamble of claim 1.
  • Such an internal combustion engine is in DE-OS 302. 109 disclosed.
  • the object of the invention is to provide a method with which a generic internal combustion engine can be operated with the highest possible efficiency.
  • crankshaft angle-controlled system is characterized by good accuracy; it is superior to the time-controlled ignition systems which are simpler in structure.
  • the timed Systems determine the respective crankshaft angle position based on a time base and the speed.
  • crankshaft angle-controlled system When transferring a crankshaft angle-controlled system to the arrangement for controlling the gas exchange valves in an internal combustion engine of the generic type, however, it turns out that the accuracy inherent in the crankshaft angle-controlled system is not readily usable for compliance with the opening and closing times of the gas exchange valves.
  • crankshaft angle information is evaluated at the same time in order to determine speed changes.
  • the figure shows the time course of the current flowing through the coil, in particular during the time of the change of position of the gas exchange valve.
  • the gas exchange valve As long as the gas exchange valve remains in its one rest position, the open or closed position, the armature of the gas exchange valve is in the vicinity of a coil through which current flows, the current flow through this coil exerting holding force on the armature of the gas exchange valve. If the current flow through the coil is switched off, the holding force breaks down.
  • a spring system acts on the gas exchange valve and accelerates it towards the other rest position. As described in DE-OS 3024 109, the central position of this spring system is between the two rest positions, so that the spring system acts on the gas exchange valve in such a way that it is moved beyond its rest position to approximately the other working position.
  • the coil assigned to the other working position is excited so that the armature, when it comes into the vicinity of the coil core, is caught by the latter and is held in its other working position by the current flow through the coil.
  • coil 1 represents the current profile in the coil which is responsible for the closed position of the gas exchange valve. If the gas exchange valve is to open, the current through the coil 1 is switched off at time t, so that the armature is pressed into the open position of the gas exchange valve by the spring force.
  • the computer Since the computer calculated the time t beforehand, the computer knows at the same time when the armature of the gas exchange valve will hit the pole faces of the coil core, which serves to hold the gas exchange valve in the open position. In order to have built up a sufficiently high current when the armature strikes the pole faces, which ensures sufficient force to catch the armature, the current in the coil 2 is switched on in good time beforehand at a time t Q. At time t 2 , the armature hits the pole face of coil 2, which is in the course of the current
  • the computer is now switched over to a time base in order to, starting at time t. , at a point in time t ,, which is somewhat later than the expected impact time, to switch off the capture current in coil 2, so that the current running through the coil 2 gradually decreases again due to a freewheeling circuit, in order to subsequently switch into a clocked one Hold phase to go.
  • the period between t 1 and t is a certain safety space in order to guarantee that the gas exchange valve has actually been caught by the coil 2 and that the gas exchange valve is accordingly kept in its full open position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • Combined Controls Of Internal Combustion Engines (AREA)
PCT/EP1986/000377 1985-07-05 1986-06-25 Method for operating an internal combustion engine WO1987000240A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP61503697A JPH07111127B2 (ja) 1985-07-05 1986-06-25 内燃機関の運転方法
DE8686904141T DE3660558D1 (en) 1985-07-05 1986-06-25 Method for operating an internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3524025.3 1985-07-05
DE19853524025 DE3524025A1 (de) 1985-07-05 1985-07-05 Verfahren zum betreiben einer brennkraftmaschine

Publications (1)

Publication Number Publication Date
WO1987000240A1 true WO1987000240A1 (en) 1987-01-15

Family

ID=6275010

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1986/000377 WO1987000240A1 (en) 1985-07-05 1986-06-25 Method for operating an internal combustion engine

Country Status (4)

Country Link
EP (1) EP0229793B1 (ja)
JP (1) JPH07111127B2 (ja)
DE (2) DE3524025A1 (ja)
WO (1) WO1987000240A1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0264706A1 (de) * 1986-10-13 1988-04-27 Audi Ag Verfahren zum Betrieb einer Brennkraftmaschine
EP0367552A1 (en) * 1988-10-31 1990-05-09 Isuzu Motors Limited Valve control system for internal combustion engine
EP0367553A1 (en) * 1988-10-31 1990-05-09 Isuzu Motors Limited Valve control system for internal combustion engine
DE10109352B4 (de) * 2000-02-28 2006-01-05 Toyota Jidosha K.K., Toyota Brennkraftmaschine

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3923477A1 (de) * 1989-07-15 1991-01-24 Fev Motorentech Gmbh & Co Kg Verfahren zur steuerung der ankerbewegung von schaltmagneten
JPH04259614A (ja) * 1991-02-12 1992-09-16 Hideo Yoshikawa 内燃機関の動弁装置
DE19741570A1 (de) * 1997-09-20 1999-03-25 Heinz Leiber Elektromagnetische Stelleinrichtung
DE19756342C2 (de) * 1997-12-18 2003-02-13 Conti Temic Microelectronic Verfahren zur Steuerung einer Brennkraftmaschine
JP3487216B2 (ja) 1999-05-11 2004-01-13 トヨタ自動車株式会社 電磁駆動弁

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1471861A (en) * 1921-09-07 1923-10-23 Perrault Oscar Louis Valve-actuating mechanism for internal-combustion engines
DE2630512A1 (de) * 1976-07-07 1978-01-12 Daimler Benz Ag Ventilsteuerung, insbesondere fuer brennkraftmaschinen
GB2025183A (en) * 1978-06-30 1980-01-16 Bosch Gmbh Robert Operating an electro-magnetic load
JPS59162312A (ja) * 1983-03-08 1984-09-13 Mikuni Kogyo Co Ltd 電子制御エンジン

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2343905C2 (de) * 1973-08-31 1982-10-07 Daimler-Benz Ag, 7000 Stuttgart Vorrichtung zur digital-elektronischen Steuerung der Einlaß-, Auslaß- und Einspritzventile sowie der Zündung bei Brennkraftmaschinen
JPS5952111B2 (ja) * 1976-04-09 1984-12-18 キユーピー株式会社 定量充填装置
DE3024109A1 (de) * 1980-06-27 1982-01-21 Pischinger, Franz, Prof. Dipl.-Ing. Dr.Techn., 5100 Aachen Elektromagnetisch arbeitende stelleinrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1471861A (en) * 1921-09-07 1923-10-23 Perrault Oscar Louis Valve-actuating mechanism for internal-combustion engines
DE2630512A1 (de) * 1976-07-07 1978-01-12 Daimler Benz Ag Ventilsteuerung, insbesondere fuer brennkraftmaschinen
GB2025183A (en) * 1978-06-30 1980-01-16 Bosch Gmbh Robert Operating an electro-magnetic load
JPS59162312A (ja) * 1983-03-08 1984-09-13 Mikuni Kogyo Co Ltd 電子制御エンジン

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 014 (M - 352)<1737> 22 January 1985 (1985-01-22) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0264706A1 (de) * 1986-10-13 1988-04-27 Audi Ag Verfahren zum Betrieb einer Brennkraftmaschine
EP0367552A1 (en) * 1988-10-31 1990-05-09 Isuzu Motors Limited Valve control system for internal combustion engine
EP0367553A1 (en) * 1988-10-31 1990-05-09 Isuzu Motors Limited Valve control system for internal combustion engine
US5076222A (en) * 1988-10-31 1991-12-31 Isuzu Motors Limited Valve control system for internal combustion engine
DE10109352B4 (de) * 2000-02-28 2006-01-05 Toyota Jidosha K.K., Toyota Brennkraftmaschine

Also Published As

Publication number Publication date
EP0229793A1 (de) 1987-07-29
EP0229793B1 (de) 1988-08-17
DE3660558D1 (en) 1988-09-22
DE3524025A1 (de) 1987-01-15
JPH07111127B2 (ja) 1995-11-29
JPS62503182A (ja) 1987-12-17

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