Control system and method based on estimated engine speed
US8494756B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 2010 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | Dec 18, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2200/1015
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control system includes a speed determination module and a profile estimation module. The speed determination module determines previous engine speeds based on a predetermined profile of a crankshaft position sensor and previous pulse times corresponding to teeth on the crankshaft position sensor. The profile estimation module performs data fitting to determine an estimated profile of the crankshaft position sensor based on the previous pulse times and the previous engine speeds. The speed determination module determines present engine speeds based on the estimated profile and present pulse times corresponding to the teeth on the crankshaft position sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.