FUEL INJECTION METHOD ELECTRONICALLY CONTROLLED ENGINE

Title:

FUEL INJECTION METHOD ELECTRONICALLY CONTROLLED ENGINE

Document Type and Number:

Japanese Patent JPS5825534

Kind Code:

A

Abstract:

PURPOSE: To improve a response and exhaust gas purifiction performance at acceleration from an idle condition, by extending a fuel injection time in execution by the time of asynchronous injection when an asynchronous injection signal is generated in an execution state of fuel injection.

CONSTITUTION: A control circuit 50, at acceleration of an engine from its idle condition, with a 30°CA interruption as a trigger, at a point of time erected with a synchronous injection execution flag fSYNC when an asynchronous execution flag fASYNC is already erected, calculates a fuel injection time τ from that added with as asynchronous injection time τACC to a synchronous fuel injection time (τo+τv). In this way, when the calculated fuel injection time τ exceeds an upper limit value A, the fuel injection time is limited by the upper limit value A and executed.

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Inventors:

YAEGASHI TAKEHISA
MURAI TOSHIMI
DOUMIYOU HIROYUKI
MATSUOKA HIROKI
KINUGASA YUKIO

Application Number:

JP12506981A

Publication Date:

February 15, 1983

Filing Date:

August 10, 1981

Export Citation:

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Assignee:

TOYOTA MOTOR CO LTD

International Classes:

F02D41/34; F02D41/10; (IPC1-7): F02D5/02

Attorney, Agent or Firm:

Satoshi Takaya

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Next Patent: CONTROL METHOD OF FUEL INJECTION IN INTERNAL COMBUSTION ENGINE