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특허 상세정보

Control apparatus for internal combustion engine

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02M-057/02    F02M-051/00   
미국특허분류(USC) 123/446; 123/458; 123/479; 123/496; 123/198D; 123/198DB; 701/104; 701/107
출원번호 US-0617327 (2009-11-12)
등록번호 US-8240290 (2012-08-14)
우선권정보 JP-2008-291629 (2008-11-14)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Crowell & Moring LLP
인용정보 피인용 횟수 : 4  인용 특허 : 23
초록

In a control apparatus for an internal combustion engine, when a fuel pressure detected by the fuel pressure detecting unit is not smaller than a threshold P_a, the value opening time duration of a injector is increased to a value larger than its normal value, such control as to stop fuel injection from the injector is inhibited, the low pressure fuel pump is stopped, thus quickly lowering the fuel pressure. After the fuel pressure is lowered, the valve opening time duration of the injector is returned to the normal value, and a discharge quantity of the...

대표
청구항

1. A control apparatus for an internal combustion engine comprising: a high pressure fuel pump for supplying a high pressure fuel to the internal combustion engine;a low pressure fuel pump for supplying the fuel to the high pressure fuel pump;at least one fuel injector for injecting the fuel directly into a cylinder of the engine;a fuel injection controller for driving the high pressure fuel pump and the injector;a high pressure fuel pipe connected between the high pressure fuel pump and the injector,fuel pressure detecting means provided to the high pre...

이 특허에 인용된 특허 (23)

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  2. Susumu Kohketsu JP; Keiki Tanabe JP. Accumulator type fuel injection system. USP2002046378498.
  3. Klenk,Rolf; Matt,Martin; Weining,Hans Karl; Wunderlich,Klaus. Arrangement for supplying fuel to the fuel injectors of an internal combustion engine. USP2007107281520.
  4. Osuka Isao (Nagoya JPX). Common-rail fuel injection system and related method. USP1993045201294.
  5. Fujiwara Toru,JPX. Cylinder injection type fuel control apparatus. USP1999045893352.
  6. Eser,Gerhard; Widmann,Frank. Device and method for identifying defects in a fuel injection system. USP2006117137294.
  7. Wataya Seiji (Himeji JPX) Kishimoto Yuji (Himeji JPX). Failure-time control device for a fuel injection controller of an internal combustion engine. USP1988084765299.
  8. Tanabe, Keiki; Nakayama, Shinji; Kohketsu, Susumu. Fuel injection apparatus of engine. USP2004026684856.
  9. Matsufuji Koji,JPX ; Hori Toshio,JPX ; Toyohara Masahiro,JPX ; Goto Kenichi,JPX. Fuel injection control arrangement for internal combustion engine with abnormality detection function therein. USP2001096283108.
  10. Laufer Helmut (Gerlingen DEX) Straubel Max (Stuttgart DEX). Fuel injection pump. USP1988034733640.
  11. Uchiyama, Ken; Matsumura, Toshimi. Fuel injection system. USP2004046715468.
  12. Akimoto Akira (Musashino JPX). Fuel pressure control system for high pressure fuel injection engine. USP1995085441026.
  13. Katsura, Ryo. Fuel pressure controller and fuel pressure control system. USP2011118050845.
  14. Rosenau Bernd,DEX ; Loesch Gerd,DEX ; Rueckle Markus,DEX. Fuel pump assembly. USP2000116142747.
  15. Cinpinski, Kenneth J.; Lee, Byungho. Fuel pump control system and method. USP2011057950371.
  16. Eser, Gerhard; P?tzel, Sebastian. Injection system with an emergency operation function and an associated emergency operation method. USP2005096948480.
  17. Hiroyuki Mizuno JP; Zenichiro Mashiki JP. Method and apparatus for controlling engine fuel injection. USP2002096446609.
  18. Mueller, Norbert; Roth, Peter; Straub, Heiko. Method for controlling a fuel injection system of an internal combustion engine. USP2011098024104.
  19. Hofmeister,Carl Eike. Method for monitoring the operability of a fuel injection system. USP2008117444993.
  20. Joos, Klaus; Wolber, Jens; Frenz, Thomas; Bochum, Hansjoerg; Amler, Markus. Method for reducing the fuel pressure in a non-return fuel supply system. USP2003126655360.
  21. Augustin Ulrich,DEX ; Schwarz Volker,DEX. Method of controlling an internal combustion engine upon detection of a fault inn a fuel injection system. USP1998035727516.
  22. Geyer, Gerhard; Holl, Andreas. Method of operating an internal combustion engine. USP2004036714853.
  23. Biester Juergen,DEX. Process and device for controlling an internal combustion engine. USP1998035727515.