System and method for diagnosing and calibrating internal combustion engines
US7113861B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 19, 2005 |
| Grant date | Sep 26, 2006 |
| Priority date | — |
| Expiry date | Apr 19, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/1405
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method, system, and machine-readable storage medium for determining a predetermined operating condition of an internal combustion engine are disclosed. In operation, the method, system and machine-readable storage medium measure a cylinder pressure in at least one combustion chamber at a predetermined point in a combustion cycle. Next, the method, system, and machine-readable storage medium determine at least a first value for an operating parameter of the engine using the measured cylinder pressure, determine a second value for the operating parameter of the engine using data received from at least one engine sensor, and then generate a predetermined signal if a difference between the first value and the second value has a predetermined relationship.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.