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특허 상세정보

Method and system for adjusting a fuel tank isolation valve

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F16K-037/00    F02M-025/08    F02D-041/00   
출원번호 US-0496707 (2014-09-25)
등록번호 US-9518677 (2016-12-13)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Dottavio, James
인용정보 피인용 횟수 : 1  인용 특허 : 19
초록

Methods and systems are provided for adjusting and diagnosing a position of a fuel tank isolation valve (FTIV) of a fuel system. In one example, a method comprises adjusting a FTIV of a fuel system by sending an electrical pulse to the FTIV; and comparing a current draw of the FTIV to a known current draw profile to verify the position of the FTIV. In this way, the position of the FTIV may be diagnosed, thereby resulting in increased accuracy of subsequent valve control.

대표
청구항

1. A method, comprising: adjusting a fuel tank isolation valve (FTIV) of a fuel system by sending electrical pulses to the FTIV;counting each of the electrical pulses to track a position of the FTIV; andusing a canister temperature to verify the position of the FTIV when the position of the FTIV is unknown or invalid. 2. The method of claim 1, wherein using the canister temperature to verify the position of the FTIV comprises indicating the FTIV is open responsive to the canister temperature increasing above a threshold within a duration and indicating t...

이 특허에 인용된 특허 (19)

  1. Roth, Robert A.; Beyer, Sharon E.; Sawert, Ulf. Axially adjustable fill limiter vent valve. USP2012018091578.
  2. Arch,James J.. Bottom draining tank with disposable liner and method. USP2006016988639.
  3. Perotti, Jose M.; Lucena, Angel; Ihlefeld, Curtis; Burns, Bradley; Bassignani, Karin E.. Current signature sensor. USP2005076917203.
  4. Yoneshige Kazuhiro (Nagoya JPX). D.C. solenoid. USP1992075128826.
  5. Kidokoro, Toru; Matsubara, Takuji; Hyodo, Yoshihiko. Evaporated fuel treatment device for internal combustion engine. USP2005016837224.
  6. Matsubara,Takuji; Kidokoro,Toru; Hyodo,Yoshihiko. Evaporated fuel treatment device of internal combustion engine. USP2006057043972.
  7. Takagi, Naoya; Hyodo, Yoshihiko. Evaporative fuel processing apparatus and control method of same. USP2004076761154.
  8. Jeffrey Allen Doering ; Brent Edward Sealy ; Jae Doo Chung ; Marianne L. Vykydal ; Patrick Joseph Curran. Fuel tank pressure control system. USP2002046378505.
  9. DeCapua, Dennis M.; Gregory, Douglas O.. Fuel tank vacuum-relief system. USP2010027654403.
  10. Yamasaki, Koji. Fuel vapor storage canister, fuel vapor adsorbent for canister, and method of producing fuel vapor adsorbent. USP2011098015965.
  11. DeBastos, Timothy; Kacewicz, John Michael; Bohr, Scott; Pearce, Russell Randall; Kragh, Christopher; Sullivan, Patrick; Euliss, William; Kluzner, Michael Igor. Method and system for fuel vapor control. USP2011098019525.
  12. Kerns, James Michael; Kragh, Chris; Yang, Dennis; DeBastos, Timothy; Pearce, Russell Randall; Bohr, Scott; Heim, Michael G.. Method and system for fuel vapor control. USP2013058434461.
  13. Curran Patrick J. (Farmington Hills MI) McCoy Juliette J. (South Lyon MI) Panganis Michael A. (Plymouth MI) Waskiewicz David C. (Novi MI) Schwager Bryce A. (Ypsilanti MI) Rychlick Edward G. (Dearborn. Method and system for monitoring an evaporative purge system. USP1997035614665.
  14. Veinotte,Andre. Method for determining vapor canister loading using temperature. USP2007067233845.
  15. Hansson, Mark G.; Steiff, Byron K.; Fordham, David; Blackman, Donald; Schamell, Paul; Yandle, Tom. Non-magnetic latching servo actuated valve. USP2014018636021.
  16. Rosseel Alexis,FRX. Non-return valve for a fuel tank. USP2001096283147.
  17. Fukasawa Osamu (Obu JPX) Iida Hisashi (Aichi JPX). Self-diagnosis apparatus and method for fuel evaporative emission. USP1995055419299.
  18. Rober,Stephen. Solenoid actuator motion detection. USP2008107432721.
  19. Blumenstock Andreas (Ludwigsburg DEX) Denz Helmut (Stuttgart DEX) Mezger Werner (Eberstadt DEX) Wild Ernst (Oberriexingen DEX). Tank-venting apparatus as well as a method and an arrangement for checking the same. USP1993045205263.

이 특허를 인용한 특허 피인용횟수: 1

  1. Aso, Shuichi. Canister structure. USP2018019863376.