System and method for diagnosing cylinder deactivation
US11378028B2 · kind B2 · utility
0Cited by
29References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2020 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Oct 11, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/0406
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Systems and methods for determining degradation of a cylinder deactivation mechanism are described. In one example, engine data generated while an engine is operation with all of its cylinders active is used to correct engine data generated while one or more engine cylinders are deactivated to improve detection of a degraded cylinder deactivation mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.