System and method for diagnosing a crankcase ventilation system
US11555465B1 · kind B1 · utility
0Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2021 |
| Grant date | Jan 17, 2023 |
| Priority date | — |
| Expiry date | Sep 10, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and a system for diagnosing positive crankcase ventilation (PCV) systems are disclosed. In one example, the method diagnoses a PCV system based on a pressure that may be observed during engine cranking. In another example, the PCV system is diagnosed during vehicle driving conditions after the engine exits cranking.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.