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JPH0719084A Expired / Lapsed JP ⏱️ 0.0 years remaining

Cylinder injection type internal combustion engine controller

Assignee: Toyota Motor Corp
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Filing: 1993-01-22
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Granted: —
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Expires: 2013-01-22
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Abstract

Abstract Translated from Japanese (57)【要約】 【目的】 本発明は、筒内噴射式内燃機関の制御装置に 関し、必要燃料量が少ない機関運転状態において燃料温 度が低い時に、排気エミッションが悪化する問題を通常 の単一の噴射弁が使用されても解決可能とすることを目 的とする。 【構成】 必要燃料量を決定する燃料量決定手段(ステ ップ101から104)と、燃料噴射弁の開弁時間を燃 料温度を考慮して必要燃料量が噴射されるように算出す る開弁時間算出手段(ステップ105,106)と、こ の開弁時間が最小開弁時間未満となる時、最小開弁時間 だけ開弁指令を与える開弁指令手段(ステップ110) と、この時に噴射された燃料量を燃料温度を考慮して算 出する燃料量算出手段(ステップ111)と、この燃料 量を基に所望の空燃比が得られるように吸気量を増加さ せる吸気量制御手段(ステップ112)と、この時に点 火時期を遅角する点火時期遅角手段(ステップ113, 114)、とを具備する。 (57) [Summary] [Object] The present invention relates to a control system for a cylinder injection type internal combustion engine, in which the problem that the exhaust emission is deteriorated when the fuel temperature is low in the engine operating state where the required fuel amount is small is a normal single problem. The purpose is to be able to solve even if the injection valve of is used. A fuel amount determining means (steps 101 to 104) for determining a required fuel amount, and a valve opening time calculation for calculating a valve opening time of a fuel injection valve so that a required fuel amount is injected in consideration of a fuel temperature. Means (steps 105, 106) and valve opening command means (step 110) for giving a valve opening command for a minimum valve opening time when the valve opening time is less than the minimum valve opening time. And a fuel amount calculation means (step 111) for calculating the fuel amount injected at this time in consideration of the fuel temperature, and an intake amount for increasing the intake amount so as to obtain a desired air-fuel ratio based on this fuel amount. Control means (step 112) and ignition timing retarding means (step 113, which retards the ignition timing at this time). 114), and.

Inventors

  • 👤 Shigeki Miyashita
  • 👤 茂樹 宮下

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-09 18:45
CPC Classifications
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