Patent · US Active

Engine control apparatus

US7472692B2 · kind B2 · utility

21Cited by
2References
22Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 23, 2007
Grant dateJan 6, 2009
Priority date
Expiry dateAug 19, 2027

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02T10/30
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

An engine control apparatus which can ensure and maintain a stability and constant exhaust emission characteristics even in such a condition that a nature of a fuel used as present is unsure, and which is robust among different fuel natures, comprising a plurality of different nature fuel quantity computing means and an operating condition detecting means for detecting an operating condition of an engine, wherein a first nature fuel quantity computing means among the plurality of different nature fuel quantity computing means is used as a fuel quantity computing means during an engine start, and the first nature fuel quantity computing means is forcibly changed over into a second nature fuel quantity computing means if an engine operating condition detected by the operating condition detecting means satisfies a predetermined term.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.