Engine error detection system
US-2017370804-A1 · Dec 28, 2017 · US
using an estimation
using an estimation · 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 | F02D35/024 |
| Official title | {using an estimation} |
| Display label | using an estimation |
| Total patents | 273 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 15 |
| 2016 | 27 |
| 2017 | 42 |
| 2018 | 39 |
| 2019 | 30 |
| 2020 | 47 |
| 2021 | 27 |
| 2022 | 17 |
| 2023 | 6 |
| 2024 | 7 |
| 2025 | 12 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and Processing System of Sensed Ionization Current Data for Real Time Estimate of Combustion Chamber Pressure in a Spark Ignition Engine
US-2017335819-A1 · Nov 23, 2017 · US
Device for controlling in-cylinder pressure sensor
US-9790854-B2 · Oct 17, 2017 · US
Controller and control method for internal combustion engine
US-2017292466-A1 · Oct 12, 2017 · US
Engine error detection system
US-9784644-B2 · Oct 10, 2017 · US
System and method for modeling and estimating engine cranking torque disturbances during starts and stops
US-2017247025-A1 · Aug 31, 2017 · US
Engine system with inferential sensor
US-2017218860-A1 · Aug 3, 2017 · US
Controller and control method for internal combustion engine
US-2017204795-A1 · Jul 20, 2017 · US
In-cylinder pressure detecting apparatus for internal combustion engine
US-9702787-B2 · Jul 11, 2017 · US
System and method for deactivating a cylinder of an engine and reactivating the cylinder based on an estimated trapped air mass
US-9638121-B2 · May 2, 2017 · US
Valve fault detection
US-2017101956-A1 · Apr 13, 2017 · US
Method and device for diagnosing performance of an internal combustion engine
US-2017082054-A1 · Mar 23, 2017 · US
Systems and methods for detecting anomalies at in-cylinder pressure sensors
US-9587552-B1 · Mar 7, 2017 · US
Heat generation rate waveform calculation device of internal combustion engine and method for calculating heat generation rate waveform
US-2017037792-A1 · Feb 9, 2017 · US
Physics Based Single Cylinder Charging Model
US-2017030273-A1 · Feb 2, 2017 · US
System and method for regulating exhaust gas recirculation in an engine
US-9556810-B2 · Jan 31, 2017 · US
Intake manifold and cylinder airflow estimation systems and methods
US-2017016407-A1 · Jan 19, 2017 · US
System and method for detection of changes to compression ratio and peak firing pressure of an engine
US-2017003190-A1 · Jan 5, 2017 · US
Engine torque control with combustion phasing
US-2016363059-A1 · Dec 15, 2016 · US
Fuel injection device
US-2016363081-A1 · Dec 15, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02D35/024?
- CPC F02D35/024 is the Cooperative Patent Classification code for “using an estimation.”
- How many patents are filed under CPC F02D35/024 (using an estimation)?
- Our database includes 273 publications tagged with this CPC code.
- Is patent activity under CPC F02D35/024 growing?
- Publication counts under this code: 7 in 2024 vs 12 in 2025 (latest complete years).