F02D 41/1491
Replacing of the control value by a mean value
Official title: {Replacing of the control value by a mean value}
F02D41/1491 (Replacing of the control value by a mean value) appears on 46 US grants and 3 published applications in this corpus.
Search patents in F02D- Granted patents
- 46
- Published applications
- 3
- Assignees
- 22
- Inventors
- 93
- Latest grant
- 27 Apr 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 7 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Methods and system for operating an oxygen sensor27 Apr 2021US 10,989,126 B2Ford Global Technologies, LLC
- Method and apparatus for air fuel ratio adjustment6 Jan 2009US 7,474,955 B2GM Global Technology Operations LLC
- Method for controlling an internal combustion engine generator unit4 Jul 2006US 7,072,759 B2MTU Friedrichshafen GmbH
- Apparatus and a method for adjusting the air fuel ratio of an internal combustion engine16 Nov 1999US 5,983,877 AChrysler Corporation
- Automotive engine control system5 May 1998US 5,746,187 AMazda Motor Corporation
- Methods and system for operating an oxygen sensor13 Aug 2020US 2020/0256268 A1Ford Global Technologies, LLC
- Method and apparatus for air fuel ratio adjustment9 Aug 2007US 2007/0185641 A1GM Global Technology Operations LLC
- Method for conrolling an internal combustion engine generator unit22 Dec 2005US 2005/0279324 A1MTU Friedrichshafen GmbH
Most cited
By later US patents
- Apparatus for venting a fuel tank28US 4,683,861 ARobert Bosch GmbH · 1987
- Air/fuel ratio control method having fail-safe function for abnormalities in oxygen concentration detecting means for internal combustion engines26US 4,502,443 AHonda Giken Kogyo Kabushiki Kaisha · 1985
- Automotive engine control system26US 5,746,187 AMazda Motor Corporation · 1998
- Closed loop air-fuel ratio control system for use with internal combustion engine24US 4,019,470 ANissan Motor Co., Ltd. · 1977
- Method and apparatus for controlling the air-fuel ratio in an internal combustion engine21US 4,392,471 AToyota Jidosha Kogyo Kabushiki Kaisha · 1983