WO2007148031A3 - Device and method for generating a datum value for a vcr system - Google Patents

Device and method for generating a datum value for a vcr system Download PDF

Info

Publication number
WO2007148031A3
WO2007148031A3 PCT/FR2007/051507 FR2007051507W WO2007148031A3 WO 2007148031 A3 WO2007148031 A3 WO 2007148031A3 FR 2007051507 W FR2007051507 W FR 2007051507W WO 2007148031 A3 WO2007148031 A3 WO 2007148031A3
Authority
WO
WIPO (PCT)
Prior art keywords
compression ratio
datum
computer
generating
engine
Prior art date
Application number
PCT/FR2007/051507
Other languages
French (fr)
Other versions
WO2007148031A2 (en
Inventor
Emmanuel Devaud
Gwennael Favennec
David Gerard
David Racher
Charlie Rambert
Original Assignee
Renault Sa
Emmanuel Devaud
Gwennael Favennec
David Gerard
David Racher
Charlie Rambert
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 Renault Sa, Emmanuel Devaud, Gwennael Favennec, David Gerard, David Racher, Charlie Rambert filed Critical Renault Sa
Publication of WO2007148031A2 publication Critical patent/WO2007148031A2/en
Publication of WO2007148031A3 publication Critical patent/WO2007148031A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D15/00—Varying compression ratio
    • F02D15/02—Varying compression ratio by alteration or displacement of piston stroke
    • 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
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1401—Introducing closed-loop corrections characterised by the control or regulation method
    • F02D2041/1413—Controller structures or design
    • F02D2041/1432—Controller structures or design the system including a filter, e.g. a low pass or high pass filter

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

The invention relates to a device for generating variable compression ratios for an internal combustion engine, comprising a computer (2) controlling an actuator (3) that generates a compression ratio in the engine, the computer (2) comprising a map (21) and receiving engine speed and engine torque, or effective pressure, data in order to generate a first compression ratio datum (211) and a first processing means (22) for processing said first compression ratio datum (211) that generates a second compression ratio datum (221) equal to a mean of earlier first compression ratio datums (211). The invention is essentially characterized in that the computer (2) further comprises a second processing means (23) converting said second compression ratio datum (221) into a hysteresis datum (231) which is sent to the actuator (3) so that it can generate said compression ratio.
PCT/FR2007/051507 2006-06-23 2007-06-22 Device and method for generating a datum value for a vcr system WO2007148031A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0605680A FR2902834B1 (en) 2006-06-23 2006-06-23 DEVICE AND METHOD FOR SETTING GENERATION FOR VCR SYSTEM
FR0605680 2006-06-23

Publications (2)

Publication Number Publication Date
WO2007148031A2 WO2007148031A2 (en) 2007-12-27
WO2007148031A3 true WO2007148031A3 (en) 2008-02-07

Family

ID=37852314

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2007/051507 WO2007148031A2 (en) 2006-06-23 2007-06-22 Device and method for generating a datum value for a vcr system

Country Status (2)

Country Link
FR (1) FR2902834B1 (en)
WO (1) WO2007148031A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1418329A2 (en) * 2002-11-08 2004-05-12 Ford Global Technologies, LLC A method and system for controlling an engine
US20040153234A1 (en) * 2003-01-29 2004-08-05 Toyota Jidosha Kabushiki Kaisha Internal combustion engine utilizing motor to change over compression ratio and control method of internal combustion engine
EP1586757A1 (en) * 2003-01-14 2005-10-19 Yanmar Co., Ltd. Method of controlling premix compression self-igniting internal combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1418329A2 (en) * 2002-11-08 2004-05-12 Ford Global Technologies, LLC A method and system for controlling an engine
EP1586757A1 (en) * 2003-01-14 2005-10-19 Yanmar Co., Ltd. Method of controlling premix compression self-igniting internal combustion engine
US20040153234A1 (en) * 2003-01-29 2004-08-05 Toyota Jidosha Kabushiki Kaisha Internal combustion engine utilizing motor to change over compression ratio and control method of internal combustion engine

Also Published As

Publication number Publication date
WO2007148031A2 (en) 2007-12-27
FR2902834A1 (en) 2007-12-28
FR2902834B1 (en) 2008-09-26

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