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특허 상세정보

Vehicle engine control system utilizing humidity sensor

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F02D-041/22   
미국특허분류(USC) 123/399; 123/090.15; 123/479; 123/568.16; 123/690
출원번호 US-0678411 (2003-10-02)
등록번호 US-7318409 (2008-01-15)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Lippa,Allan J.
인용정보 피인용 횟수 : 21  인용 특허 : 14
초록

A system and method for utilizing a humidity sensor with an internal combustion engine of a vehicle is described. Specifically, information from the humidity sensor is used to adjust a desired air-fuel ratio to reduce engine misfire while improving vehicle fuel economy. Further, such information is also used to adjust timing and/or lift of the valve in the engine cylinder. Finally, diagnostic routines are also described.

대표
청구항

I claim: 1. A method for controlling an internal combustion engine of a vehicle, the engine having a humidity sensor, the method comprising: adjusting a fuel injection amount into the engine based on said humidity sensor; adjusting flow through the engine based on said humidity sensor; determining degradation of the humidity sensor; and using default settings in response to a determination of degradation of the humidity sensor. 2. The method recited in claim 1 wherein said adjusting fuel injection based on said humidity sensor further comprises adjus...

이 특허에 인용된 특허 (14)

  1. Keranen Theodore W. (Pontiac MI). Air density computer for an internal combustion engine fuel control system. USP1976093982503.
  2. Cullen Michael John. Engine control system and method with atmospheric humidity compensation. USP2000056062204.
  3. Kubesh, John Thomas; Podnar, Daniel James; Latusek, John Phillip; McCaw, Donald Lee. Engine control to reduce emissions variability. USP2003066581571.
  4. Netherwood John (3146 N. Coronado St. Chandler AZ 85224). Engine management system. USP1997025605135.
  5. Cullen, Michael J.. Engine with variable cam timing and control advantageously using humidity sensor. USP2005076918362.
  6. Sato, Masahiro; Iwaki, Yoshihisa; Ueno, Masaki; Akazaki, Shusuke; Haga, Takashi; Sato, Tadashi; Miyahara, Yasuyuki. Failure determination device for humidity sensor and control system for exhaust passage changeover valve. USP2003066581370.
  7. Bhargava, Sumit; Dunnuck, David. Humidity compensation system for an internal combustion engine. USP2003066575148.
  8. Moore John Howard (Redditch EN). Internal combustion engine fuel injection control system. USP1977094046113.
  9. Kubesh John Thomas ; Dodge Lee Gene ; Podnar Daniel James. Method and apparatus for controlling fuel/air mixture in a lean burn engine. USP1998045735245.
  10. Strohrmann, Manfred; Mueller, Wolfgang; Konzelmann, Uwe; Mussert, Piet-Christiaan. Method for determining the air aspirated by an internal combustion engine, and sensor for an internal combustion engine. USP2003066581447.
  11. Gitlin, Ronald D.; O'Conner, Darren; Gietzen, Randy A.. Programmable internal combustion engine controller. USP2003056560528.
  12. Yamazaki, Hideharu; Sato, Masahiro; Machida, Kei; Haga, Takashi; Ueno, Masaki. State determining apparatus for humidity sensor. USP2005036860143.
  13. Lewis Donald J. ; Russell John David. Variable cam timing control system and method. USP2000086101993.
  14. Cullen Michael J. (Northville MI) Dona Alan R. (Huntington Woods MI) Clinton Eric L. (Southfield MI) Hardy Larry A. (Riverview MI). Variable camshaft timing system with altitude compensation. USP1997035609126.

이 특허를 인용한 특허 피인용횟수: 21

  1. Cullen, Michael J.. Detection of a humidity sensor failure in an internal combustion engine. USP2010027654253.
  2. Cullen,Michael J.. Detection of a humidity sensor failure in an internal combustion engine. USP2008077398775.
  3. Makki, Imad Hassan; Kerns, James Michael; Clark, Timothy Joseph; Jentz, Robert Roy; Uhrich, Michael James. Distinguishing between EGR valve and oxygen sensor degradation. USP2014078775011.
  4. Makki, Imad Hassan; Kerns, James Michael; Clark, Timothy Joseph; Jentz, Robert Roy; Uhrich, Michael James. Distinguishing between EGR valve and oxygen sensor degradation. USP2015109151207.
  5. Wiggins, Layne K.; Leven, Martin; Hamama, Wajdi B.; Ferdous, Kauser; Domino, Robert. Engine control systems and methods with humidity sensors. USP2016029249764.
  6. Naik, Sanjeev M.; Ramappan, Vijay; Casetti, Martino. Exhaust gas recirculation control systems and methods. USP2016059341133.
  7. Ramappan, Vijay; Burleigh, Darrell W.; Casetti, Martino. Exhaust gas recirculation control systems and methods. USP2018049932917.
  8. Xiao, Nian; Ding, Yi. Humidity detection via an exhaust gas sensor. USP2012108296042.
  9. Song, B. Jerry; Bayer, Ethan E.; Moscherosch, Ben W.; Koch, Calvin K.. Humidity determination and compensation systems and methods using an intake oxygen sensor. USP20180910066564.
  10. Bauerle, Paul A.. Humidity sensor diagnostic systems and methods. USP2012118315759.
  11. Guo, Yichao; Stack, Robert; Wu, Zhijian J. Intake oxygen sensor rationality diagnostics. USP2018019879630.
  12. Surnilla, Gopichandra; Makki, Imad Hassan; Kerns, James Michael; Jentz, Robert Roy; Clark, Timothy Joseph; Uhrich, Michael James; Soltis, Richard E.. Method and system for humidity sensor diagnostics. USP2015109163588.
  13. Surnilla, Gopichandra; Makki, Imad Hassan; Kerns, James Michael; Jentz, Robert Roy; Clark, Timothy Joseph; Uhrich, Michael James; Soltis, Richard E.. Method and system for humidity sensor diagnostics. USP2017119828949.
  14. Surnilla, Gopichandra; Makki, Imad Hassan; Uhrich, Michael James; Clark, Timothy Joseph; Kerns, James Michael; Jentz, Robert Roy. Method and system for humidity sensor diagnostics. USP2014118881713.
  15. Surnilla, Gopichandra; Makki, Imad Hassan; Uhrich, Michael James; Clark, Timothy Joseph; Kerns, James Michael; Jentz, Robert Roy. Method and system for humidity sensor diagnostics. USP2015079074548.
  16. Yun, Hanho; Wermuth, Nicole; Najt, Paul M.; Kang, Jun-Mo; Chang, Chen-Fang. Methodology to compensate the effect of humidity and altitude on HCCI combustion. USP2014068751136.
  17. Dudar, Aed M.. Methods and systems for diagnosing an engine intake humidity sensor. USP20190210196996.
  18. Song, B. Jerry; Ramappan, Vijay; Burleigh, Darrell W.. Selective exhaust gas recirculation diagnostic systems and methods. USP2015109157390.
  19. Song, B. Jerry; Casetti, Martino; Jeffrey, Scott; Avallone, Louis A.. Sensor based measurement and purge control of fuel vapors in internal combustion engines. USP2017049631567.
  20. Song, B. Jerry. Static and dynamic pressure compensation for intake oxygen sensing. USP2016019228524.
  21. Dudar, Aed M.. Systems and methods for diagnosing a vehicle humidity sensor. USP20190210197000.