Method and apparatus for generating crankshaft synchronized sine wave
US7891332B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2006 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Dec 23, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/1416
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of generating a crankshaft synchronized sine wave signal for an internal combustion engine is provided. The method includes the steps of: A) sensing an observed crankshaft angle of the crankshaft; B) using a dynamic observer to generate an estimated crankshaft angle from said observed crankshaft angle; and C) generating the crankshaft synchronized sine wave signal as a function of the estimated crankshaft angle. The crankshaft synchronized sine wave signal is preferable output to at least one of an active vibration control system and an active noise control system. An apparatus for generating a crankshaft synchronized sine wave for an internal combustion engine according to the method of the present invention is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.