F02D 41/2458
With an additional dither signal
Official title: {with an additional dither signal}
F02D41/2458 (With an additional dither signal) appears on 94 US grants and 35 published applications in this corpus.
Search patents in F02D- Granted patents
- 94
- Published applications
- 35
- Assignees
- 42
- Inventors
- 186
- Latest grant
- 14 Feb 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 7 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 5 | 0 |
| 1996 | 7 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 3 |
| 2003 | 4 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 4 |
| 2009 | 1 | 6 |
| 2010 | 5 | 1 |
| 2011 | 3 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 1 |
| 2017 | 2 | 1 |
| 2018 | 3 | 0 |
| 2019 | 1 | 8 |
| 2020 | 5 | 0 |
| 2021 | 3 | 2 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Internal combustion engine cylinder air-fuel ratio imbalance detection and controls14 Feb 2023US 11,578,675 B2Cummins Inc.
- Fuel control8 Mar 2022US 11,268,470 B2Husqvarna AB
- Controller and control method for internal combustion engine8 Jun 2021US 11,028,748 B2Toyota Jidosha Kabushiki Kaisha
- Control apparatus for internal combustion engine and method for controlling internal combustion engine30 Mar 2021US 10,961,928 B2Toyota Jidosha Kabushiki Kaisha
- Internal combustion engine cylinder air-fuel ratio imbalance detection and controls9 Feb 2021US 10,914,253 B2Cummins Inc.
- Method and apparatus for controlling an engine of a vehicle5 Mar 2026US 2026/0063088 A1Hyundai Motor Company
- Catalyst deterioration diagnostic device for flexible fuel engine26 Feb 2026US 2026/0055737 A1Yamaha Hatsudoki Kabushiki Kaisha
- Improved Fuel Control29 Jul 2021US 2021/0231073 A1Husqvarna AB
- Internal combustion engine cylinder air-fuel ratio imbalance detection and controls18 Feb 2021US 2021/0047975 A1Cummins Inc.
- Internal combustion engine cylinder air-fuel ratio imbalance detection and controls31 Oct 2019US 2019/0331038 A1Cummins Inc.
Most cited
By later US patents
- System and method for controlling the air / fuel ratio in an internal combustion engine66US 6,591,605 B2Ford Global Technologies, LLC · 2003
- Air/fuel control system for an internal combustion engine63US 5,598,703 AFord Motor Company · 1997
- Engine fuel control with mixed time and event based A/F ratio error estimator and controller51US 6,233,922 B1Delphi Technologies, Inc. · 2001
- Method for balancing the air/fuel ratio to each cylinder of an engine39US 6,000,384 ACaterpillar Inc. · 1999
- Air-fuel ratio control system for internal combustion engines32US 6,003,308 AHonda Giken Kogyo Kabushiki Kaisha · 1999