F02D 41/2454
Learning of the air-fuel ratio control
Official title: {Learning of the air-fuel ratio control}
F02D41/2454 (Learning of the air-fuel ratio control) appears on 878 US grants and 514 published applications in this corpus.
Search patents in F02D- Granted patents
- 878
- Published applications
- 514
- Assignees
- 148
- Inventors
- 1,461
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 14 | 0 |
| 1984 | 15 | 0 |
| 1985 | 21 | 0 |
| 1986 | 16 | 0 |
| 1987 | 14 | 0 |
| 1988 | 22 | 0 |
| 1989 | 25 | 0 |
| 1990 | 15 | 0 |
| 1991 | 19 | 0 |
| 1992 | 20 | 0 |
| 1993 | 25 | 0 |
| 1994 | 16 | 0 |
| 1995 | 17 | 0 |
| 1996 | 21 | 0 |
| 1997 | 19 | 0 |
| 1998 | 28 | 0 |
| 1999 | 16 | 0 |
| 2000 | 18 | 0 |
| 2001 | 18 | 5 |
| 2002 | 23 | 17 |
| 2003 | 21 | 32 |
| 2004 | 26 | 28 |
| 2005 | 17 | 18 |
| 2006 | 33 | 26 |
| 2007 | 21 | 17 |
| 2008 | 16 | 26 |
| 2009 | 13 | 35 |
| 2010 | 27 | 30 |
| 2011 | 20 | 19 |
| 2012 | 24 | 27 |
| 2013 | 35 | 33 |
| 2014 | 16 | 17 |
| 2015 | 17 | 18 |
| 2016 | 20 | 29 |
| 2017 | 33 | 28 |
| 2018 | 22 | 20 |
| 2019 | 27 | 26 |
| 2020 | 37 | 13 |
| 2021 | 20 | 26 |
| 2022 | 19 | 5 |
| 2023 | 7 | 4 |
| 2024 | 4 | 1 |
| 2025 | 2 | 1 |
| 2026 | 3 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for adaptive control of air-to-fuel ratio18 Aug 2026US 12,710,014 B2Caterpillar Inc.
- AI-powered vehicle31 Mar 2026US 12,591,249 B1King Faisal University
- Methods and systems for V8 engine fuel control3 Feb 2026US 12,540,583 B1Ford Global Technologies, LLC
- Device and method for determining an offset in a signal of a sensor for measuring residual oxygen28 Jan 2025US 12,209,519 B2Robert Bosch GmbH
- Adjusting an internal combustion engine7 Jan 2025US 12,188,427 B2Cummins Inc.
- System and method for adaptive control of air-to-fuel ratio18 Jun 2026US 2026/0168452 A1Caterpillar Inc.
- Apparatuses, computer-implemented methods, and computer program products for generating fueling plans to reduce greenhouse gas impact18 Jun 2026US 2026/0170511 A1Honeywell International Inc.
- Internal combustion engine controller11 Jun 2026US 2026/0160212 A1Toyota Jidosha Kabushiki Kaisha
- Method and device for carrying out at least one vehicle function of a vehicle, and method and device for creating a trained machine learning exhaust gas determination model21 May 2026US 2026/0138583 A1Volkswagen Aktiengesellschaft
- Internal combustion engine system30 Apr 2026US 2026/0117719 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Exhaust gas control using a spark plug ionization signal198US 6,980,903 B2Visteon Global Technologies, Inc. · 2005
- Fuel control system with calibration learning capability for motor vehicle internal combustion engine137US 4,130,095 AGeneral Motors Corporation · 1978
- Method and apparatus for improving engine fuel economy103US 5,778,666 AFord Global Technologies, LLC · 1998
- Closed loop control for desulfating a NO.sub.x trap92US 5,983,627 AFord Global Technologies, LLC · 1999
- Fuel control with learning capability for motor vehicle combustion engine86US 4,235,204 AGeneral Motors Corporation · 1980