JPS616651U

JPS616651U - Diesel engine fuel injection control device

Info

Publication number: JPS616651U
Application number: JP9153184U
Authority: JP
Inventors: 佳久川村; 邦彦杉原
Original assignee: 日産自動車株式会社
Priority date: 1984-06-19
Filing date: 1984-06-19
Publication date: 1986-01-16

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図はこの考案のクレーム対応図である。第２図Ａ，Ｂはこの考案の実施例の機械的構成図、第
３図はその燃料噴射ポンプの詳細断面図、第４図、第５
図Ａ，Ｂはその補正制御系の動作内容を表す流れ図で
ある。第６図は前記動作内容に関連して吸気絞りゾーンを示す
ためめ説四図、第７図〜第１０図は同じく加速判定基準
及び補正量の説明図である。 “ ９１・Ｊ・回転速度検出手段、９２・・・負荷検出
手段、９３・・・燃料噴射噴射量制御手段、９４・・・
燃料噴射噴射ポンプ、９５・・・負圧駆動装置、９７・
・・負荷変化速度演算手段、９８・・・位置検出手段、
９９・・・補正手段、７・・・燃料噴射ポンプ、９・・
・吸気絞り弁、１０，１２・・・負圧駆動装置、１１・
・・ＥＧＲ制御弁、２０・・・アクセル位置センサ、２
１・・・回転センサ、２７・・・制御装置、８０・・・
位置センキ（８１，８２・・・圧カセンサ、８３・・・
ポテンシオメータ）。FIG. 1 is a diagram showing how this invention corresponds to claims. Figures 2A and B are mechanical configuration diagrams of an embodiment of this invention, Figure 3 is a detailed sectional view of the fuel injection pump, and Figures 4 and 5.
Figures A and B are flowcharts showing the operation details of the correction control system. FIG. 6 is a schematic diagram showing the intake throttling zone in relation to the above-mentioned operation details, and FIGS. 7 to 10 are diagrams for explaining acceleration determination criteria and correction amounts. 91.J. Rotational speed detection means, 92... Load detection means, 93... Fuel injection amount control means, 94...
fuel injection injection pump, 95... negative pressure drive device, 97.
...Load change speed calculation means, 98...Position detection means,
99... Correction means, 7... Fuel injection pump, 9...
・Intake throttle valve, 10, 12...Negative pressure drive device, 11・
...EGR control valve, 20...Accelerator position sensor, 2
1... Rotation sensor, 27... Control device, 80...
Position sensor (81, 82...pressure sensor, 83...
potentiometer).

Claims

[Scope of utility model registration request]

means for detecting engine rotational speed and required load; fuel injection amount control means for setting and commanding a target fuel injection amount based on the detection results; and fuel injection in which the fuel injection amount is variably controlled in response to the commands. In a diesel engine equipped with a pump and a negative pressure drive device that drives an intake throttle valve or an EGR control valve according to an engine operating state, a load change rate calculation means for calculating a change rate of the required load, and the negative pressure a position detection means for detecting an operating position of the drive device; and a position detecting means for determining an acceleration state based on the load change rate, and an amount corresponding to the operating position until the negative pressure drive device reaches a target position at the time of predetermined acceleration. What is claimed is: 1. A fuel injection control device for a diesel engine, comprising: a correction means for correcting a decrease in fuel injection amount.