Dynamic engine timing control
US6732709B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2002 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Dec 6, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for controlling timing of an internal combustion engine having a piston located in a cylinder. The method and apparatus includes determining a first angular position of a crankshaft at a first location along a longitudinal axis of the crankshaft, determining a second angular position of the crankshaft at a second location along the longitudinal axis, determining a level of deformation of the crankshaft as a function of a difference between the first and second angular positions, determining an actual position of the piston as a function of the crankshaft deformation, comparing the actual piston position to a desired piston position, and controlling timing of an event to initiate combustion in the cylinder as a function of a difference between the actual and desired piston positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.