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Fuel system leak detection

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • F02M-033/02
출원번호 US-0347732 (1999-07-06)
발명자 / 주소
  • Corkill William John,GBX
출원인 / 주소
  • Ford Global Technologies, Inc.
대리인 / 주소
    Drouillard
인용정보 피인용 횟수 : 17  인용 특허 : 13

초록

A vehicle fuel system has on-board diagnostics for leak testing with correction for different operating conditions. An electronic control unit (ECU) is arranged to carry out a periodic two stage leak test, when the engine is running. Stage A includes evacuation of the fuel tank, monitoring bleedup a

대표청구항

[ What is claimed is:] [1.]1. A vehicle fuel system with on-board diagnostics for leak testing comprising:a) fuel tank for containing fuel for delivery to an internal combustion engine;b) a purge canister connected to the space in the tank above the fuel;c) a canister vent valve (CVV) for connecting

이 특허에 인용된 특허 (13)

  1. Aramaki Takashi (Kanagawa JPX) Saito Chiaki (Kanagawa JPX) Takahata Toshio (Kanagawa JPX) Yano Hirofumi (Kanagawa JPX), Apparatus for checking failure in evaporated fuel purging unit.
  2. Mader Gerhard (Thalmassing DEX) Meixner Hans (Haar DEX) Schreiber Hans (Lappersdorf DEX), Arrangement for the detection of deficiencies in a tank ventilation system.
  3. Thomson Jon (Jackson MI), Diagnostic system for canister purge system.
  4. Isobe Takashi,JPX ; Toda Takushi,JPX, Evaporative fuel-processing system for internal combustion engines.
  5. Yamanaka Masayoshi (Wako JPX) Maruyama Hiroshi (Wako JPX) Chikamatsu Masataka (Wako JPX) Seki Yasunari (Wako JPX) Maeda Kenichi (Wako JPX) Sawamura Kazutomo (Wako JPX), Evaporative fuel-processing system for internal combustion engines.
  6. Yamanaka Masayoshi (Wako JPX) Sawamura Kazutomo (Wako JPX) Maruyama Hiroshi (Wako JPX) Maeda Kenichi (Wako JPX), Evaporative fuel-processing system for internal combustion engines.
  7. Lipinski Daniel J. (Livonia MI) Marshall Charles E. (Novi MI) Prior Ernest C. (Woodhaven MI), Evaporative purge monitoring strategy and system.
  8. Schwager Bryce Andrew ; Curran Patrick Joseph, Fuel sloshing detection.
  9. Perry Paul D. (Chatham CAX) Cook John E. (Chatham CAX), Fuel vapor leak detection system.
  10. Takahata Toshio (Aikou-gun JPX) Nakazawa Shinsuke (Yokohama JPX) Iochi Atsushi (Yokohama JPX) Kuriki Hiroshi (Yokohama JPX) Gotoh Kenichi (Zama JPX), Leak test system for vaporized fuel treatment mechanism.
  11. 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.
  12. Drschmidt Ferry (Friolzheim DEX) Strauss Wolfgang (Denkendorf DEX), Method for detecting leaks in a motor vehicle tank ventilation system.
  13. Kuroda Shigetaka (Wako JPX) Igarashi Hisashi (Wako JPX) Kano Hidekazu (Wako JPX) Suzuki Takeshi (Wako JPX), Method of detecting abnormality in an evaporative fuel-purging system for internal combustion engines.

이 특허를 인용한 특허 (17)

  1. Nishimura, Yusaku; Ogawa, Yoshihide; Minamitani, Kazuhiro; Kawai, Satoshi; Douke, Toshio; Ogaki, Yoshinori, Evaporation system leak diagnostic apparatus.
  2. Gearhart, Raymond D.; Bolt, Louis Scott; Bhargava, Sumit, Evaporative emissions leak tester and leak test method.
  3. Jentz, Robert Roy; Peters, Mark W.; Casedy, Michael; Dudar, Aed M, Fuel system diagnostics.
  4. Elwart, Shane; Kerns, James Michael, Fuel systems and methods for controlling fuel systems in a vehicle with multiple fuel tanks.
  5. Elwart, Shane; Kerns, James Michael, Fuel systems and methods for controlling fuel systems in a vehicle with multiple fuel tanks.
  6. Fabre, Laurent, Leak detection a vapor handling system.
  7. Pearce, Russell Randall; Bohr, Scott A.; Dudar, Aed M.; Yang, Dennis Seung-Man, Leak detection based on fuel level.
  8. Yamaguchi, Takashi; Isobe, Takashi, Leak determining apparatus, leak determining method, and engine control unit for an evaporated fuel treatment system.
  9. Mamoru Yoshioka JP; Yoshihiko Hyodo JP; Naoya Takagi JP, Malfunction test apparatus for fuel vapor purge system.
  10. Veinotte,Andre, Method for determining vapor canister loading using temperature.
  11. Grunwald, Oliver; Ketterer, Alexander, Method for verifying the tightness of a tank bleeding system without using a pressure sensor.
  12. Herzog, Michael; Smith, Gordon Ernest; Sulik, Charles Michael; Pandey, Arun R.; Shishkin, Valeriy Maksimovich; Weedon, Rex Graham; Davis, Mark, System and method for testing fuel tank integrity.
  13. Herzog,Michael; Smith,Gordon Ernest; Sulik,Charles Michael; Pandey,Arun R.; Shishkin,Valeriy Maksimovich; Weedon,Rex Graham; Davis,Mark, System and method for testing fuel tank integrity.
  14. Herzog,Michael; Smith,Gordon Ernest; Sulik,Charles Michael; Pandey,Arun Raj; Shishkin,Valeriy Maksimovich; Weedon,Rex Graham; Davis,Mark A., System and method for testing fuel tank integrity.
  15. Dudar, Aed M.; Mullins, John, Systems and methods for engine-off natural vacuum leak testing with fuel enablement compensation.
  16. John Cook CA; Craig Weldon CA; Ray Rasokas CA, Vacuum leak verification system and method.
  17. Weldon, Craig Andrew; Yew, Kwang, Vacuum leak verification system and method.
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