System and method for controlling engine and transmission system of a machine
US-2016251827-A1 · Sep 1, 2016 · US
Electric control of rotation speed
Electric control of rotation speed · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F02D31/001 |
| Official title | {Electric control of rotation speed} |
| Display label | Electric control of rotation speed |
| Total patents | 476 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 52 |
| 2016 | 45 |
| 2017 | 66 |
| 2018 | 43 |
| 2019 | 51 |
| 2020 | 56 |
| 2021 | 48 |
| 2022 | 36 |
| 2023 | 38 |
| 2024 | 23 |
| 2025 | 15 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Engine control device
US-2016230688-A1 · Aug 11, 2016 · US
Systems and methods for automatically controlling the engine of a turf-care vehicle
US-2016177844-A1 · Jun 23, 2016 · US
Apparatus and method for controlling engine clutch
US-2016137191-A1 · May 19, 2016 · US
Engine operation control device for hybrid vehicle
US-9340201-B2 · May 17, 2016 · US
Internal combustion engine control device, and control method
US-2016123248-A1 · May 5, 2016 · US
System and method for adjusting engine speed and/or engine load to improve fuel economy without causing vehicle vibration that is perceivable by a vehicle occupant
US-9284903-B2 · Mar 15, 2016 · US
Method and device for redundantly controlling the speed of an internal combustion engine
US-2016047322-A1 · Feb 18, 2016 · US
Engine speed control systems and methods
US-2015369146-A1 · Dec 24, 2015 · US
Methods and systems for assisted direct start control
US-9212644-B2 · Dec 15, 2015 · US
Speed ratio control device and method for working vehicle
US-9199644-B2 · Dec 1, 2015 · US
Diesel particulate filter regeneration in transport refrigeration system
US-9175588-B2 · Nov 3, 2015 · US
System and method for controlling exhaust braking in a vehicle
US-9175617-B2 · Nov 3, 2015 · US
Vehicle control apparatus
US-2015307098-A1 · Oct 29, 2015 · US
Method for controlling the rotational speed of a motor
US-2015293543-A1 · Oct 15, 2015 · US
Industrial vehicle
US-2015275799-A1 · Oct 1, 2015 · US
Systems and methods for wireless control of an engine-driven welding power supply
US-2015273607-A1 · Oct 1, 2015 · US
Regulation of concentration/fraction of substances in an exhaust stream
US-2015239453-A1 · Aug 27, 2015 · US
Transmission control device for hybrid vehicle
US-9108636-B2 · Aug 18, 2015 · US
Method for protecting engine from short circuiting and wire failure of fan clutch, and device thereof
US-2015226136-A1 · Aug 13, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D31/001?
- CPC F02D31/001 is the Cooperative Patent Classification code for “Electric control of rotation speed.”
- How many patents are filed under CPC F02D31/001 (Electric control of rotation speed)?
- Our database includes 476 publications tagged with this CPC code.
- Is patent activity under CPC F02D31/001 growing?
- Publication counts under this code: 23 in 2024 vs 15 in 2025 (latest complete years).