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특허 상세정보

Method and system for fuel vapor control

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02M-037/04   
미국특허분류(USC) 701/102; 123/520; 073/11439
출원번호 US-0790790 (2010-05-28)
등록번호 US8019525 (2011-08-30)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Alleman Hall McCoy Russell & Tuttle LLP
인용정보 피인용 횟수 : 26  인용 특허 : 32
초록

A method and system for fuel vapor control in a hybrid vehicle (HEV). The HEV fuel vapor recovery system includes a fuel tank isolation valve, which is normally closed to isolate storage of refueling from storage of diurnal vapors. The method for fuel vapor control includes selectively actuating the fuel tank isolation valve during interrelated routines for refueling, fuel vapor purging, and emission system leak detection diagnostics to improve regulation of pressure and vacuum the HEV fuel vapor recovery system.

대표
청구항

The invention claimed is: 1. A vehicle system, comprising,a battery;an engine including an engine intake, the engine selectively started in response to a battery state of charge falling below a threshold;a fuel tank coupled to a canister through a fuel tank isolation valve;a canister, configured to store fuel vapors, coupled to an engine intake through a canister purge valve, the canister further coupled to a vacuum accumulator through a vacuum accumulator valve;a first pressure sensor coupled to the fuel tank to estimate a fuel tank pressure;a second pr...

이 특허에 인용된 특허 (32)

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이 특허를 인용한 특허 피인용횟수: 26

  1. Sager, Roger C; Sturgeon, Ryan; Daley, James; Dekar, Joseph; Unsworth, Jospeh B; Del Rio, Luis; Yannone, Jr., Ronald A; Wuttke, Jeffrey P. Boost-assisted purge flow techniques for evaporative emissions systems. USP20181210161323.
  2. Takakura, Shinsuke. Device and method for diagnosing evaporated fuel processing device. USP2016119494481.
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  4. Jentz, Robert Roy; Peters, Mark W.; Clemens, Dave; Dudar, Aed M.. Engine-off refueling detection method. USP2016059341147.
  5. Itoh, Tomohiro; Kobayashi, Mitsuyuki; Sugihara, Shinji. Evaporated fuel leak detecting apparatus. USP2014108850873.
  6. Nishimura, Yusaku; Ogawa, Yoshihide; Minamitani, Kazuhiro; Kawai, Satoshi; Douke, Toshio; Ogaki, Yoshinori. Evaporation system leak diagnostic apparatus. USP2015028950244.
  7. Dudar, Aed M.. Evaporative emissions system and method for a stop/start vehicle. USP2017109797348.
  8. Iwaya, Norifumi; Sano, Takayuki; Wakamatsu, Atsushi; Kageyama, Hiroaki. Fuel evaporation gas discharge suppressing device of internal combustion engine. USP2015028960163.
  9. Dudar, Aed M.; Pearce, Russell Randall; Yang, Dennis Seung-Man; Ognjanovski, Jr., Robert; Ghannam, Mahmoud Yousef. Latchable valve and method for operation of the latchable valve. USP2017109777678.
  10. Pearce, Russell Randall; Bohr, Scott A.; Dudar, Aed M.; Yang, Dennis Seung-Man. Leak detection based on fuel level. USP2015079091227.
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  13. Bolger, Bryan; Lindlbauer, Michael Paul; Peters, Mark W.. Method and system for adjusting a fuel tank isolation valve. USP2016109464601.
  14. Dudar, Aed M.; Yang, Dennis Seung-Man; Jentz, Robert Roy; Ognjanovski, Jr., Robert; Aitken, Brian Thomas. Method and system for adjusting a fuel tank isolation valve. USP2016129518677.
  15. 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. USP2012068200411.
  16. Dudar, Aed M.; Jentz, Robert Roy; Bohr, Scott A.; Kragh, Niels Christopher. Method and system for fuel vapor control. USP2015059026345.
  17. Dudar, Aed Mohammad; Jentz, Robert Roy; DeBastos, Timothy; Kerns, James Michael; Kluzner, Michael Igor. Method and system for fuel vapor control. USP2016059353708.
  18. Pearce, Russell Randall; Bohr, Scott; Kragh, Christopher; DeBastos, Timothy; Sullivan, Patrick; Kerns, James Michael; Olson, Chad Michael. Method and system for fuel vapor control. USP2013058447495.
  19. Peters, Mark W.; Jentz, Robert Roy; Butler, Darrell Erick; Dudar, Aed Mohammad. Method and system for fuel vapor control. USP2015059027532.
  20. Dudar, Aed M.; Pearce, Russell Randall; Yang, Dennis Seung-Man. Method for detecting fuel system degradation. USP20180910077731.
  21. Dudar, Aed M.; Jentz, Robert Roy; Pearce, Russell Randall; Bohr, Scott A.. Passive venturi pump for leak diagnostics and refueling. USP2016069376991.
  22. Dudar, Aed M.. System and methods for evaporative emissions leak detection based on a vehicle location. USP2016039291128.
  23. Dudar, Aed M.; Ignasiak, Donald; Yang, Dennis Seung-Man; Pearce, Russell Randall; Peters, Mark W.; Kragh, Niels Christopher. Systems and methods for fuel vapor canister purge. USP2017119822719.
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  25. Martin, Douglas Raymond; Sipes, Ann Irene; Jentz, Robert Roy; Dudar, Aed Mohammad; Peters, Mark W.; Hu, Guopeng. Vapor purge system integrity diagnosis for a hybrid vehicle. USP2013028371272.
  26. Martin, Douglas Raymond; Sipes, Ann Irene; Jentz, Robert Roy; Dudar, Aed Mohammad; Peters, Mark W.; Hu, Guopeng. Vapor purge system integrity diagnosis for a hybrid vehicle. USP2012128336526.