Method and apparatus for diagnosing engine system
US10344681B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Dec 5, 2017 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Feb 15, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of and an apparatus for diagnosing an engine system are provided. An apparatus for diagnosing an engine system including a continuous variable valve duration (CVVD) apparatus and an exhaust gas recirculation (EGR) apparatus may include: an accelerator pedal position sensor detecting a position of an accelerator pedal; a brake pedal position sensor detecting a position of a brake pedal; a vehicle speed sensor detecting a speed of a vehicle; an intake pressure sensor detecting an intake pressure; and a controller determining whether a fuel cut condition is satisfied and determining whether the CVVD apparatus and an EGR valve is in a failure state when the fuel cut condition is satisfied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.