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Title:
CONTROLLER OF CYLINDER FUEL INJECTION TYPE ENGINE
Document Type and Number:
Japanese Patent JP2001065393
Kind Code:
A
Abstract:

To prevent the accumulation of deposit by adjusting a control amount of an injector to lower a temperature of each injector nozzle part corresponding to an engine operating state in a fuel direct injection-type engine having cylinders different from each other in a length of an intake pipe or an exhaust pipe.

The fuel in a paper separator tank 29 is preloaded by a fuel preloading pump 30, pressurized by a high-pressure fuel pump 32, and then supplied to injectors 13 mounted on cylinders #1-#6 through a fuel supply rail 33. On this occasion, a basic map value Fnm of a control amount of each cylinder is determined on the basis of an engine rotational speed and a detected value of a throttle opening, and then an injector correction amount Cnm of a cylinder of which a temperature of a nozzle part of the injector 13 is high, is determined to control the injector 13 by an ECU 42. The operation of Fnm×Cnm is executed, and an injector control amount of a cylinder of which a temperature of the nozzle part of the injector is relatively low, is operated to control the fuel injection amount of each cylinder.


Inventors:
KATO MASAHIKO
Application Number:
JP23646099A
Publication Date:
March 13, 2001
Filing Date:
August 24, 1999
Export Citation:
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Assignee:
SANSHIN KOGYO KK
International Classes:
F02P5/15; F02B61/04; F02B75/22; F02D29/00; F02D37/02; F02D41/00; F02D41/02; F02D41/20; F02D41/34; F02D41/40; F02M51/00; F02M61/16; F02B75/02; F02B75/18; F02D35/02; F02D41/30; F02D41/38; (IPC1-7): F02D41/20; F02D29/00; F02D41/02; F02M51/00; F02M61/16; F02P5/15
Attorney, Agent or Firm:
Hiroki Shirai (3 outside)