F02D 2041/1422
Variable gain or coefficients
Official title: {Variable gain or coefficients}
F02D2041/1422 (Variable gain or coefficients) appears on 296 US grants and 238 published applications in this corpus.
Search patents in F02D- Granted patents
- 296
- Published applications
- 238
- Assignees
- 106
- Inventors
- 649
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 6 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 6 | 0 |
| 1998 | 10 | 0 |
| 1999 | 3 | 0 |
| 2000 | 8 | 0 |
| 2001 | 15 | 8 |
| 2002 | 14 | 18 |
| 2003 | 21 | 21 |
| 2004 | 14 | 12 |
| 2005 | 11 | 11 |
| 2006 | 7 | 8 |
| 2007 | 12 | 10 |
| 2008 | 8 | 10 |
| 2009 | 6 | 15 |
| 2010 | 11 | 10 |
| 2011 | 11 | 13 |
| 2012 | 7 | 10 |
| 2013 | 12 | 6 |
| 2014 | 8 | 11 |
| 2015 | 13 | 12 |
| 2016 | 7 | 16 |
| 2017 | 15 | 9 |
| 2018 | 13 | 6 |
| 2019 | 12 | 4 |
| 2020 | 5 | 12 |
| 2021 | 5 | 4 |
| 2022 | 9 | 4 |
| 2023 | 4 | 2 |
| 2024 | 2 | 1 |
| 2025 | 3 | 4 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Power systems and methods to improve engine fuel efficiency using an energy storage device10 Mar 2026US 12,571,355 B1Illinois Tool Works Inc.
- Electronic throttle control method and electronic throttle control device13 Jan 2026US 12,523,183 B2Nikki Co., Ltd.
- Compensation controller for controlling the boost pressure for charged internal combustion engines14 Oct 2025US 12,442,342 B2Bayerische Motoren Werke Aktiengesellschaft
- Method for controlling a rotational speed of an output shaft of a propulsion unit12 Aug 2025US 12,384,254 B2Volvo Truck Corporation
- Engine control device, engine control system, and engine control program5 Aug 2025US 12,378,928 B2Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Duty cycle control for metering valve30 Apr 2026US 2026/0117723 A1Caterpillar Inc.
- Device for applying a closed loop combustion control to an engine and method therefor16 Oct 2025US 2025/0320840 A1Liebherr-Components Colmar SAS
- Compensation Controller for Controlling the Boost Pressure for Charged Internal Combustion Engines10 Jul 2025US 2025/0223933 A1Bayerische Motoren Werke Aktiengesellschaft
- Engine control device, engine control system, and engine control program15 May 2025US 2025/0154919 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Electronic throttle control method and electronic throttle control device8 May 2025US 2025/0146447 A1Nikki Co., Ltd.
Most cited
By later US patents
- System for intelligent control of an engine based on soft computing78US 6,216,083 B1Yamaha Motor Co., Ltd. · 2001
- Hybrid vehicle and method of controlling hybrid vehicle75US 6,563,230 B2Toyota Jidosha Kabushiki Kaisha · 2003
- Air-fuel ratio control apparatus of internal combustion engine71US 6,481,201 B2Toyota Jidosha Kabushiki Kaisha · 2002
- Method and apparatus for reducing locomotive diesel engine smoke using skip firing63US 6,405,705 B1General Electric Company · 2002
- Apparatus and method for accurately controlling fuel injection flow rate52US 5,771,861 ACummins Engine Company, Inc. · 1998