System and method for calibrating engine crankshaft-camshaft correlation and for improved vehicle limp-home mode
US9163576B2 · kind B2 · utility
1Cited by
16References
20Claims
0Family size
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Key dates
| Filing date | Sep 23, 2011 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Aug 20, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/227
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system for an engine includes an edge detection module and a correlation calibration module. The edge detection module (i) detects edges of a camshaft of the engine using a camshaft position sensor, and (ii) detects edges of a crankshaft of the engine using a crankshaft position sensor. The correlation calibration module calibrates a correlation between the crankshaft and the camshaft based on the detected edges of the crankshaft and the camshaft, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.