JPS6088034U

JPS6088034U - Boost pressure control device

Info

Publication number: JPS6088034U
Application number: JP18019183U
Authority: JP
Inventors: 博司山口
Original assignee: 日産自動車株式会社
Priority date: 1983-11-24
Filing date: 1983-11-24
Publication date: 1985-06-17

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図は本考案機関の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ＩＪに記
憶させたエンジン回転数と冷却水温度とに対応して設定
した限界吸気量最大値のテーブルの一例を示す図、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・・・・・・スロットルバルブ、１０・・・・
・・吸気マニホールド、１１・・・・・・スイッチ、１
２・・・・・・イクニションコイル、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、１
７・・・・・・スイングバルブコントローラ、１７Ａ・
・・・・・ダイアフラム室、１８・・・・・・スイング
バルブ、１９・・・・・・インテークリリーフバルブ、
２０・・・・・・ディストリビュータ、２１・・・・・
・コントロールユニット、２２・・・…水温センサ、２
５・・・・・・バイパス通路、２６・・・・・・電磁弁
、３０゜３１．３２，３３，３４．３５・・・・・・ス
テップ。４４一一■−−４６第５図Fig. 1 is a block diagram showing an example of a conventional boost pressure control device, Fig. 2 is a block diagram showing the structure of the boost pressure control device of the engine of the present invention, and Fig. 3 is a block diagram of the boost pressure control device of the present invention. FIG. 4 is a configuration diagram showing an example; FIG. 4 is a diagram showing an example of a table of the maximum limit intake air amount set corresponding to the engine speed and cooling water temperature stored in the memo IJ of the controller unit; FIG.
The figure 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, 1
2... Ignition coil, 13... Control unit, 14... Injector, 15...
...Intake valve, 16...Bypass passage, 1
7...Swing valve controller, 17A.
... diaphragm chamber, 18 ... swing valve, 19 ... intake relief valve,
20...Distributor, 21...
・Control unit, 22...Water temperature sensor, 2
5... Bypass passage, 26... Solenoid valve, 30° 31.32, 33, 34.35... Step. 44 11■--46 Figure 5

Claims

[Scope of utility model registration request]

means for detecting the amount of intake air flowing into the supercharger of the engine;
A means for detecting a cooling water temperature of the engine, a means for detecting a rotational speed of the engine, and a maximum allowable intake air amount set in accordance with a combination condition of the engine rotational speed and the cooling water temperature are stored. and compares the detected value of the actual intake air amount of the engine with the maximum allowable intake air amount that is set corresponding to the rotational speed and cooling water temperature at that time, and generates a boost pressure control signal. a control means for generating;
In response to a boost pressure control signal from the control means, when the detected value of the intake air amount is larger than the maximum allowable intake air amount, the boost pressure is reduced, and the detected value of the intake air amount becomes the allowable intake amount. A supercharging pressure control device comprising: supercharging pressure adjusting means for increasing the supercharging pressure when the supercharging pressure is smaller than a maximum value.