JPS6095139U

JPS6095139U - Boost pressure control device

Info

Publication number: JPS6095139U
Application number: JP18577283U
Authority: JP
Inventors: 沢本　国章
Original assignee: 日産自動車株式会社
Priority date: 1983-12-02
Filing date: 1983-12-02
Publication date: 1985-06-28

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 the drawing]

第１図は従来の過給圧制御装置の一例を示す構成図、第
２図は本考案過給圧制御装置の構成を示すブロック図、
第３図は本考案過給圧制御装置の一例を示す構成図、第
４図はそのコントローラユニットのメモリに記憶させる
エンジン回転数と冷却水温度とに対応して設定した最高
筒内圧最大値を示す数値テーブル図、第５図はその制御
手順の流れ図である。１・・・エンジン、ＩＡ・・・シリンダジャケット、２
・・・排気通路、３・・・ターボチャージャ、４・・・
排気タービン、５・・・吸気通路、６・・・コンプレッ
サ、７・・・エアクリーナ、８．・・・エアフローメー
タ、９・・・ストロットルバルフ、１０・・・吸気マニ
ホールド、１１・・・スイッチ、１２・・・イグニッシ
ョンコイル、１３…コントロールユニツト、１４・・・
インジェクタ、１５・・・吸気弁、１６・・・バイパス
通路、１７・・・スイングバルブコントローラ、１７Ａ
・・・ダイヤフラム室、１８・・・スイングバルブ、１
９・・・インテークリリーフバルブ、２０・・・ディス
トリフ］ユータ、２１・・・コントロールユニット、２
２・・・水温セン？、２　　　　　’３・・・□内圧セ
ンサ、２４・・・点火栓、２５・・・バイパス通路〈２
６・・・電磁弁、３０．３１．　３２．　３３．３４．
・・・ステップ。FIG. 1 is a configuration diagram showing an example of a conventional boost pressure control device, FIG. 2 is a block diagram showing the configuration of the boost pressure control device of the present invention,
Fig. 3 is a configuration diagram showing an example of the boost pressure control device of the present invention, and Fig. 4 shows the maximum in-cylinder pressure value set corresponding to the engine speed and cooling water temperature stored in the memory of the controller unit. The numerical value table shown in FIG. 5 is a flowchart of the control procedure. 1...Engine, IA...Cylinder jacket, 2
...exhaust passage, 3...turbocharger, 4...
Exhaust turbine, 5... Intake passage, 6... Compressor, 7... Air cleaner, 8. ... Air flow meter, 9... Throttle valve, 10... Intake manifold, 11... Switch, 12... Ignition coil, 13... Control unit, 14...
Injector, 15... Intake valve, 16... Bypass passage, 17... Swing valve controller, 17A
...Diaphragm chamber, 18...Swing valve, 1
9...Intake relief valve, 20...Distrif] user, 21...Control unit, 2
2...Water temperature? , 2 '3...□ Internal pressure sensor, 24... Spark plug, 25... Bypass passage <2
6... Solenoid valve, 30.31. 32. 33.34.
...step.

Claims

[Scope of utility model registration request]

a cylinder pressure maximum value detection means for detecting the maximum value by detecting the cylinder pressure of the engine; a means for detecting the cooling water temperature of the engine; a means for detecting the rotation speed of the engine; It has a memory that stores the limit cylinder pressure maximum value set corresponding to the combination conditions of engine speed and cooling water temperature, and stores the cylinder pressure maximum value actually detected in the engine at that rotation speed. a control means for generating a supercharging pressure control signal by comparing it with a supplementary limit cylinder pressure maximum value set corresponding to the number of cylinders and cooling water temperature; Boost pressure adjustment that reduces the boost pressure when the maximum cylinder pressure value is greater than the maximum limit cylinder pressure value, and increases the boost pressure when the maximum cylinder pressure value is smaller than the maximum limit cylinder pressure value. A supercharging pressure control device comprising: means.