JPH0276138U - - Google Patents
Info
- Publication number
- JPH0276138U JPH0276138U JP15483588U JP15483588U JPH0276138U JP H0276138 U JPH0276138 U JP H0276138U JP 15483588 U JP15483588 U JP 15483588U JP 15483588 U JP15483588 U JP 15483588U JP H0276138 U JPH0276138 U JP H0276138U
- Authority
- JP
- Japan
- Prior art keywords
- intake pressure
- pulsation width
- setting
- sampled
- setting means
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000010349 pulsation Effects 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims 6
- 230000001052 transient effect Effects 0.000 claims 5
- 230000001360 synchronised effect Effects 0.000 claims 4
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Measuring Fluid Pressure (AREA)
- Testing Of Engines (AREA)
Description
第１図は本考案の構成を示すブロツク図、第２
図は本考案の一実施例を示すシステム概略図、第
３図〜第５図はそれぞれ同上実施例における制御
内容を示すフローチヤート、第６図は同上実施例
における吸気圧力の脈動補正の特性を示すタイム
チヤート、第７図〜第９図はそれぞれ従来の吸気
圧力検出の問題点を説明するためのタイムチヤー
トである。
１…機関、７…スロツトル弁、８…スロツトル
センサ、９…吸気圧センサ、１１…コントロール
ユニツト、１５…クランク角センサ。
Figure 1 is a block diagram showing the configuration of the present invention;
The figure is a system schematic diagram showing an embodiment of the present invention, Figures 3 to 5 are flowcharts showing control details in the above embodiment, and Figure 6 shows the characteristics of intake pressure pulsation correction in the above embodiment. The time charts shown in FIGS. 7 to 9 are time charts for explaining the problems of conventional intake pressure detection. DESCRIPTION OF SYMBOLS 1... Engine, 7... Throttle valve, 8... Throttle sensor, 9... Intake pressure sensor, 11... Control unit, 15... Crank angle sensor.
Claims (1)
出する吸気圧力検出手段と、 該吸気圧力検出手段で検出された吸気圧力を所
定微小時間毎にサンプリングする時間同期サンプ
リング手段と、 該時間同期サンプリング手段でサンプリングし
た吸気圧力に基づいて吸気圧力の脈動巾予測値を
設定する脈動巾設定手段と、 機関のクランク角位置を検出するクランク角位
置検出手段と、 前記時間同期サンプリング手段で吸気圧力をサ
ンプリングしたときに前記クランク角位置検出手
段で検出したクランク角位置とサンプリングされ
た吸気圧力に基づいて前記脈動巾設定手段で設定
した脈動巾の予測値とに基づいて吸気圧力の脈動
巾補正値を設定する脈動巾補正値設定手段と、 該脈動巾補正値設定手段で設定した脈動巾補正
値に基づいて前記時間同期サンプリング手段でサ
ンプリングした吸気圧力を補正して最終的な吸気
圧力として設定する吸気圧力補正設定手段と、 を含んで構成したことを特徴とする内燃機関の
吸気圧力検出装置。 (2) 機関の過渡運転状態を検出する過渡運転状
態検出手段と、 該過渡運転状態検出手段で機関の過渡運転状態
を検出したときに前記吸気圧力補正設定手段によ
る吸気圧力補正を禁止し、前記時間同期サンプリ
ング手段でサンプリングした吸気圧力を最終的な
吸気圧力として設定する過渡運転時吸気圧力設定
手段と、 を設けたことを特徴とする請求項１記載の内燃
機関の吸気圧力検出装置。[Scope of Claim for Utility Model Registration] (1) An intake pressure detection means provided in the intake passage of an engine to detect intake pressure, and a time period for sampling the intake pressure detected by the intake pressure detection means at predetermined minute intervals. a synchronous sampling means; a pulsation width setting means for setting a predicted pulsation width of the intake pressure based on the intake pressure sampled by the time-synchronized sampling means; a crank angle position detection means for detecting the crank angle position of the engine; Based on the crank angle position detected by the crank angle position detection means when the intake pressure is sampled by the time synchronized sampling means and the predicted value of the pulsation width set by the pulsation width setting means based on the sampled intake pressure. a pulsation width correction value setting means for setting a pulsation width correction value of the intake pressure; and a pulsation width correction value setting means for correcting the intake pressure sampled by the time synchronized sampling means based on the pulsation width correction value set by the pulsation width correction value setting means. 1. An intake pressure detection device for an internal combustion engine, comprising: intake pressure correction setting means for setting a typical intake pressure; (2) a transient operating state detection means for detecting a transient operating state of the engine; and when the transient operating state detecting means detects a transient operating state of the engine, prohibiting the intake pressure correction by the intake pressure correction setting means; 2. The intake pressure detection device for an internal combustion engine according to claim 1, further comprising transient operation intake pressure setting means for setting the intake pressure sampled by the time synchronized sampling means as the final intake pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15483588U JPH0276138U (en) | 1988-11-30 | 1988-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15483588U JPH0276138U (en) | 1988-11-30 | 1988-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0276138U true JPH0276138U (en) | 1990-06-11 |
Family
ID=31431924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15483588U Pending JPH0276138U (en) | 1988-11-30 | 1988-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0276138U (en) |
-
1988
- 1988-11-30 JP JP15483588U patent/JPH0276138U/ja active Pending