Combustion engine airflow management systems and methods
US10152834B1 · kind B1 · utility
8Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 2017 |
| Grant date | Dec 11, 2018 |
| Priority date | — |
| Expiry date | Aug 24, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0406
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of conducting prognosis for an airflow management system for a combustion engine includes adjusting a throttle body valve position control signal in response to a detected airflow variation and monitoring an airflow variation compensation (AVC) value corresponding to a degree of adjustment of the control signal. The method also includes generating a throttle body coking severity metric based on at least a plurality of residual error values and the AVC value, and executing at least one response action based on the throttle body coking severity metric exceeding a predetermined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.