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특허 상세정보

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Method and system for monitoring an evaporative purge system

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02M-033/02   
미국특허분류(USC) 73/1181 ; 123/521
출원번호 US-0515844 (1995-08-16)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 51  인용 특허 : 0
초록
▼

A method and system for monitoring an evaporative purge system for malfunctions and leaks. First, a plurality of predetermined entry conditions are checked for satisfaction. If the plurality of predetermined entry conditions have been met, a flow of vapor in the evaporative purge system is determined. The evaporative purge system is then sealed from atmosphere so as to pull a vacuum on the fuel tank. The vacuum is compared to a predetermined vacuum range. If the vacuum is within the predetermined vacuum range, the vacuum is allowed to stabilize to obtain...

대표
청구항
▼

For use with a vehicle having an evaporative purge system including a fuel tank, an evaporation canister for trapping and subsequently using vapor dispelled from the fuel tank, and an internal combustion engine having an intake manifold all in fluid communication, a method for monitoring the evaporative purge system for malfunctions and leaks, the method comprising: (a) determining whether a plurality of predetermined entry conditions have been met; (b) if the plurality of predetermined entry conditions have been met, determining a flow of vapor in the e...

이 특허를 인용한 특허 피인용횟수: 51

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  5. Weldon, Craig. Diagnostic apparatus and method for an evaporative control system including an integrated pressure management apparatus. USP2005086931919.
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  7. Wong, Kevin C.; Western, William. Engine off natural vacuum leakage check for onboard diagnostics. USP2003046550316.
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  16. Jentz, Robert Roy; Peters, Mark W.; Bohr, Scott A.; Pearce, Russell Randall; Dudar, Aed M.. Fuel system diagnostics. USP2018049932937.
  17. Jentz, Robert Roy; Peters, Mark W.; Casedy, Michael; Dudar, Aed M. Fuel system diagnostics. USP2016019243591.
  18. Corkill William John,GBX. Fuel system leak detection. USP2001096283098.
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  21. Roscher, Richard; Theissler, Jurgen. Fuel tank for vehicles. USP2014038678218.
  22. Brent Edward Sealy ; Jae Doo Chung ; Jeffrey Allen Doering ; Marianne L. Vykydal ; Patrick Joseph Curran. Fuel tank pressure control system. USP2002076422214.
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  24. Patrick Joseph Curran ; Douglas Joseph Mancini ; David Chester Waskiewicz ; Jae Doo Chung. Fuel tank pressure control system. USP2002056382191.
  25. Peters, Mark W.; Jentz, Robert Roy; Dudar, Aed M.; Werner, Matthew. Fuel tank pressure relief valve cleaning. USP2016069376989.
  26. Perry, Paul D.. Housing for an integrated pressure management apparatus. USP2003076585230.
  27. Paul D. Perry CA. Housing for integrated pressure management apparatus. USP2002096453942.
  28. Cook John,CAX ; Weldon Craig A.,CAX ; Perry Paul D.,CAX ; Rasokas Raymond,CAX. Initialization method for an automotive evaporative emission leak detection system. USP2001076260410.
  29. Cook, John; Weldon, Craig A.; Perry, Paul D.; Rasokas, Raymond. Initialization method for an automotive evaporative emission leak detection system. USP2003106631634.
  30. Cook, John; Weldon, Craig A.; Perry, Paul D.; Rasokas, Raymond. Initialization method of an automotive evaporative emission leak detection system. USP2003126658925.
  31. Perry, Paul D.. Integrated pressure management apparatus having electronic control circuit. USP2003016502560.
  32. Paul D. Perry CA. Integrated pressure management apparatus providing an on-board diagnostic. USP2002096450153.
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  35. Perry,Paul D.; Cook,John E.. Integrated pressure management system for a fuel system. USP2006047025084.
  36. Steckler, Michael J.; Melby, Steve L.. Leak detection method for an evaporative emission system including a flexible fuel tank. USP2004106807847.
  37. 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.
  38. Huls Thomas Allan. Method and system for estimating fuel vapor pressure. USP1999035878727.
  39. Angermaier Anton,DEX ; Bayerle Klaus,DEX. Method for avoiding misdetection in a diagnosis of a tank venting system for a motor vehicle. USP2000036041648.
  40. Paul D. Perry CA; John E. Cook CA. Method of calibrating an integrated pressure management apparatus. USP2002116484555.
  41. Perry,Paul D.; Cook,John E.. Method of managing pressure in a fuel system. USP2006016983641.
  42. Perry,Paul; Veinotte,Andre. Poppet for an integrated pressure management apparatus and fuel system and method of minimizing resonance. USP2006107121267.
  43. Paul D. Perry CA. Pressure operable device for an integrated pressure management apparatus. USP2002106470908.
  44. Perry, Paul D.. Sensor arrangement for an integrated pressure management apparatus. USP2003016505514.
  45. Weldon, Craig. Sensor arrangement for an integrated pressure management apparatus. USP2004036708552.
  46. Dawson, Gary D.; Blomquist, William B.; Booms, Chris J.; Kanafani, Fadi S.. Small/gross leak check. USP2003036530265.
  47. Paul D. Perry CA. Solenoid for an integrated pressure management apparatus. USP2002116478045.
  48. Cook, John E.; Perry, Paul D.. Temperature correction method and subsystem for automotive evaporative leak detection systems. USP2004016672138.
  49. Cook,John E.; Perry,Paul D.. Temperature correction method and subsystem for automotive evaporative leak detection systems. USP2007037194893.
  50. Cook,John E.; Perry,Paul D.. Temperature correction method and subsystem for automotive evaporative leak detection systems. USP2006087086276.
  51. Davison Lynn Edward. Two stage monitoring of evaporative purge system. USP2001106308559.

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