EP1460255A3 - Control apparatus and computer program for driving a fuel valve in an internal combustion engine - Google Patents

Control apparatus and computer program for driving a fuel valve in an internal combustion engine Download PDF

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Publication number
EP1460255A3
EP1460255A3 EP03023174A EP03023174A EP1460255A3 EP 1460255 A3 EP1460255 A3 EP 1460255A3 EP 03023174 A EP03023174 A EP 03023174A EP 03023174 A EP03023174 A EP 03023174A EP 1460255 A3 EP1460255 A3 EP 1460255A3
Authority
EP
European Patent Office
Prior art keywords
fuel valve
combustion engine
internal combustion
computer program
coupling element
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
EP03023174A
Other languages
German (de)
French (fr)
Other versions
EP1460255A2 (en
EP1460255B1 (en
Inventor
Uwe Liskow
Michael Huebel
Walter Maeurer
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1460255A2 publication Critical patent/EP1460255A2/en
Publication of EP1460255A3 publication Critical patent/EP1460255A3/en
Application granted granted Critical
Publication of EP1460255B1 publication Critical patent/EP1460255B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D41/2096—Output circuits, e.g. for controlling currents in command coils for controlling piezoelectric injectors
    • 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
    • F02D41/20—Output circuits, e.g. for controlling currents in command coils
    • F02D2041/202—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit
    • F02D2041/2055—Output circuits, e.g. for controlling currents in command coils characterised by the control of the circuit with means for determining actual opening or closing time

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

Die Erfindung betrifft ein Steuergerät und ein Computerprogramm zum Ansteuern von mindestens einem Kraftstoffventil (300) mit Piezoantrieb (100) einer Brennkraftmaschine mit Benzindirekteinspritzung über ein Kopplungselement (200). Das Übertragungsverhalten des hydraulischen Kopplungselements (200) ist von verschiedenen Einflussfaktoren, insbesondere von der Periodendauer der Ansteuerung, von der Ansteuerdauer des Kraftstoffventils (300) oder von dessen Lastkraft abhängig. Um eine aus diesen negativen Einflussfaktoren resultierende Ungenauigkeit bei der Ansteuerung des Kraftstoffventils (300) durch den Piezoantrieb (100) zu kompensieren, wird erfindungsgemäß vorgeschlagen, einen für das Kopplungselement (200) als Fehlergröße charakteristischen stationären Hubverlust bei der Ansteuerung des Kraftstoffventils (300) zu berücksichtigen.

Figure imgaf001
The invention relates to a control unit and a computer program for controlling at least one fuel valve (300) with piezo drive (100) of an internal combustion engine with gasoline direct injection via a coupling element (200). The transmission behavior of the hydraulic coupling element (200) depends on various influencing factors, in particular on the period of the activation, on the activation duration of the fuel valve (300) or on its load force. In order to compensate for a resulting from these negative factors inaccuracies in the control of the fuel valve (300) by the piezo drive (100), the invention proposes a characteristic of the coupling element (200) as an error size stationary stroke loss in the control of the fuel valve (300) consider.
Figure imgaf001
EP20030023174 2003-03-21 2003-10-13 Control apparatus and computer program for driving a fuel valve in an internal combustion engine Expired - Lifetime EP1460255B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10312712 2003-03-21
DE2003112712 DE10312712A1 (en) 2003-03-21 2003-03-21 Control device and computer program for controlling a fuel valve of an internal combustion engine

Publications (3)

Publication Number Publication Date
EP1460255A2 EP1460255A2 (en) 2004-09-22
EP1460255A3 true EP1460255A3 (en) 2006-07-19
EP1460255B1 EP1460255B1 (en) 2009-03-18

Family

ID=32798028

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030023174 Expired - Lifetime EP1460255B1 (en) 2003-03-21 2003-10-13 Control apparatus and computer program for driving a fuel valve in an internal combustion engine

Country Status (3)

Country Link
EP (1) EP1460255B1 (en)
DE (2) DE10312712A1 (en)
ES (1) ES2320746T3 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19931233A1 (en) * 1999-07-07 2001-01-18 Siemens Ag Capacitive actuator control method for operating fuel injection valve in combustion engine
WO2001023754A1 (en) * 1999-09-30 2001-04-05 Robert Bosch Gmbh Valve for controlling a liquid
WO2002092985A1 (en) * 2001-05-14 2002-11-21 Siemens Aktiengesellschaft Method for controlling a piezoelectric actuator which is used to displace an element

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19931233A1 (en) * 1999-07-07 2001-01-18 Siemens Ag Capacitive actuator control method for operating fuel injection valve in combustion engine
WO2001023754A1 (en) * 1999-09-30 2001-04-05 Robert Bosch Gmbh Valve for controlling a liquid
WO2002092985A1 (en) * 2001-05-14 2002-11-21 Siemens Aktiengesellschaft Method for controlling a piezoelectric actuator which is used to displace an element

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"KRAFTFAHR- TECHNISCHES TASCHENBUCH. Bosch Auflage 21", 1994, STUTTGART, XP002382135 *
SPURK J H ET AL: "Interaction of nonlinear dynamics and unsteady flow in fuel injectors", 1992, SAE TECH PAP SER; SAE TECHNICAL PAPER SERIES 1992 PUBL BY SAE, WARRENDALE, PA, USA, PAGE(S) 1 - 8, XP002382139 *

Also Published As

Publication number Publication date
DE50311306D1 (en) 2009-04-30
DE10312712A1 (en) 2004-09-30
EP1460255A2 (en) 2004-09-22
ES2320746T3 (en) 2009-05-28
EP1460255B1 (en) 2009-03-18

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