Title:
FUEL INJECTION CONTROL DEVICE FOR INNER-CYLINDER INJECTION ENGINE
Document Type and Number:
Japanese Patent JP3511492
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a fuel injection control device for an inner-cylinder injection engine which computes accurate and precise mean fuel pressure while always stably sensing fuel pressures, and shows high reliability even when injection pulse width is increased.
SOLUTION: This fuel injection control device has a mean fuel pressure computing means 27 for computing mean fuel pressure PFm, a fuel pressure regulator 10 for adjusting fuel pressure PF, an injection pulse computing means 26 for computing injection pulse width of an injector 1F based on the mean fuel pressure, and a frequency varying means 23 for varying computation frequency of the mean fuel pressure. The frequency varying means sets the computation frequency longer than actuation frequency of a high pressure pump so as to secure sensing number of fuel pressure by specified times or more in one computation frequency of the mean fuel pressure computing means.
Inventors:
Ono, Takahiko
Kuto, Hiromitsu
Ouchi, Yasushi
Kuto, Hiromitsu
Ouchi, Yasushi
Application Number:
JP35468399A
Publication Date:
March 29, 2004
Filing Date:
December 14, 1999
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
International Classes:
F02M37/00; F02B5/00; F02D41/04; F02D41/20; F02D41/38; F02D45/00; F02M55/02; F02M65/00; (IPC1-7): F02D41/20; F02D41/04; F02D41/38; F02D45/00; F02M37/00; F02M55/02; F02M65/00
Attorney, Agent or Firm:
曾我 道照 （外６名）
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