Patent · US Expired

Engine control apparatus

US4919094A · kind A · utility

13Cited by
6References
25Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 13, 1989
Grant dateApr 24, 1990
Priority date
Expiry dateJul 13, 2009

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF02B1/04
  • WIPO fieldEngines, pumps, turbines
  • WIPO sectorMechanical engineering

Abstract

In an engine control apparatus for controlling the amount of fuel to be supplied by calculating the amount of liquid film or fuel adhered to an intake pipe of an engine, the adhesion rate of fuel and the time constant of evaporation of fuel in a preestimating manner, the time constant of evaporation is determined on the basis of the determined amount of liquid film, the amount of suction air and an air-to-fuel ratio upon fuel cut and the adhesion rate is determined on the basis of the amount of supply of fuel, the amount of suction air and an air-to-fuel ratio upon fuel recovery.

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