JPH0195549U - - Google Patents

Info

Publication number
JPH0195549U
JPH0195549U JP19154487U JP19154487U JPH0195549U JP H0195549 U JPH0195549 U JP H0195549U JP 19154487 U JP19154487 U JP 19154487U JP 19154487 U JP19154487 U JP 19154487U JP H0195549 U JPH0195549 U JP H0195549U
Authority
JP
Japan
Prior art keywords
compression ratio
combustion
engine
reference value
air
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.)
Granted
Application number
JP19154487U
Other languages
English (en)
Other versions
JPH064049Y2 (ja
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP19154487U priority Critical patent/JPH064049Y2/ja
Publication of JPH0195549U publication Critical patent/JPH0195549U/ja
Application granted granted Critical
Publication of JPH064049Y2 publication Critical patent/JPH064049Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Description

【図面の簡単な説明】
第1図はこの考案の構成を示すクレーム対応図
、第2図はこの考案の一実施例を示す構成説明図
、第3図、第4図および第5図は上記実施例にお
ける処理プログラムを示すフローチヤート、第6
図は燃焼圧力の特性図、第7図は空燃比異常検出
ルーチンの異なる実施例を示すフローチヤートで
ある。 1…内燃機関、2…空燃比制御手段、3…圧縮
比可変機構、4…圧力センサ、5…燃焼速度検出
手段、6…基準値設定手段、7…異常判定手段。

Claims (1)

    【実用新案登録請求の範囲】
  1. 空燃比を所定空燃比に制御する空燃比制御手段
    を備えるとともに、機関運転条件に応じて高圧縮
    比と低圧縮比との切り換えが行われる圧縮比可変
    機構を備えてなる可変圧縮比型内燃機関において
    、機関の燃焼圧力を検出する圧力センサと、上記
    燃焼圧力の変化から燃焼速度を検出する燃焼速度
    検出手段と、機関運転条件に応じて燃焼速度の基
    準値を設定する基準値設定手段と、この基準値と
    実際の燃焼速度とを比較して圧縮比の異常を判定
    する異常判定手段とを備えたことを特徴とする可
    変圧縮比型内燃機関の故障検出装置。
JP19154487U 1987-12-17 1987-12-17 可変圧縮比型内燃機関の故障検出装置 Expired - Lifetime JPH064049Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19154487U JPH064049Y2 (ja) 1987-12-17 1987-12-17 可変圧縮比型内燃機関の故障検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19154487U JPH064049Y2 (ja) 1987-12-17 1987-12-17 可変圧縮比型内燃機関の故障検出装置

Publications (2)

Publication Number Publication Date
JPH0195549U true JPH0195549U (ja) 1989-06-23
JPH064049Y2 JPH064049Y2 (ja) 1994-02-02

Family

ID=31482450

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19154487U Expired - Lifetime JPH064049Y2 (ja) 1987-12-17 1987-12-17 可変圧縮比型内燃機関の故障検出装置

Country Status (1)

Country Link
JP (1) JPH064049Y2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7213543B2 (en) 2003-04-04 2007-05-08 Toyota Jidosha Kabushiki Kaisha Technique of detecting failure of compression ratio varying mechanism and controlling internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7213543B2 (en) 2003-04-04 2007-05-08 Toyota Jidosha Kabushiki Kaisha Technique of detecting failure of compression ratio varying mechanism and controlling internal combustion engine

Also Published As

Publication number Publication date
JPH064049Y2 (ja) 1994-02-02

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