Fuel injector having algorithm controlled look-ahead timing for injector-ignition operation
US7945375B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 14, 2009 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Dec 14, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The present invention provides an injector-ignition fuel injection system for an internal combustion engine, comprising an ECU controlling a heated catalyzed fuel injector for heating and catalyzing a next fuel charge, wherein the ECU uses a one firing cycle look-ahead algorithm for controlling fuel injection. The ECU may further incorporate a look-up table, auto-tuning functions and heuristics to compensate for the rapid rotational de-acceleration that occurs near top dead center in lightweight small ultra-high compression engines as may be used with this invention. The ECU may further ramp heat input to the injector in response to engine acceleration requests and, under such circumstances, may extend its look-ahead for up to four firing cycles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.