JPS6441626A - Compression ratio control device for internal combustion engine - Google Patents

Compression ratio control device for internal combustion engine

Info

Publication number
JPS6441626A
JPS6441626A JP19378187A JP19378187A JPS6441626A JP S6441626 A JPS6441626 A JP S6441626A JP 19378187 A JP19378187 A JP 19378187A JP 19378187 A JP19378187 A JP 19378187A JP S6441626 A JPS6441626 A JP S6441626A
Authority
JP
Japan
Prior art keywords
compression ratio
internal combustion
operation condition
combustion engine
engine
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
Application number
JP19378187A
Other languages
Japanese (ja)
Inventor
Kenji Kato
Takao Naruoka
Eiji Iwasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 by Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP19378187A priority Critical patent/JPS6441626A/en
Publication of JPS6441626A publication Critical patent/JPS6441626A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To improve control precision through further accurate detection of an operation condition and to prevent the occurrence of knocking, by a method wherein, when a compression ratio is varied for control according to the operation condition of an internal combustion engine, the number of revelations of an engine and an engine load are used as the operation condition. CONSTITUTION:An internal combustion engine 1 is provided with a mechanism 2 to vary a compression ratio according to an operation condition. In this case, a means 3 to detect the number of revolutions of an engine and a plurality of an engine load as the operation condition of the internal combustion engine 1. A means 4 to set a target compression ratio according to an operation condition detected by the means 3 is provided. A means 5 to control a compression ratio varying mechanism 2 according to a target compression ratio set by the means 4 is provided. This constitution switches a compression ratio to the low compression side, being the safety side, by means of other load characteristics unaffected by a change in open air condition even when an open air condition is changed like, for example, operation on a high-land, and prevents the occurrence of knocking and worsening of drivability.
JP19378187A 1987-08-04 1987-08-04 Compression ratio control device for internal combustion engine Pending JPS6441626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19378187A JPS6441626A (en) 1987-08-04 1987-08-04 Compression ratio control device for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19378187A JPS6441626A (en) 1987-08-04 1987-08-04 Compression ratio control device for internal combustion engine

Publications (1)

Publication Number Publication Date
JPS6441626A true JPS6441626A (en) 1989-02-13

Family

ID=16313695

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19378187A Pending JPS6441626A (en) 1987-08-04 1987-08-04 Compression ratio control device for internal combustion engine

Country Status (1)

Country Link
JP (1) JPS6441626A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2393332A (en) * 2002-07-15 2004-03-24 Sumitomo Metal Method of fabricating a ceramic circuit board using conductor paste with chosen shrinkage properties.
JP2004521216A (en) * 2000-11-29 2004-07-15 ケネス・ダブリュー・コーワンズ Variable compression ratio air supply variable efficiency engine (VCRC engine)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004521216A (en) * 2000-11-29 2004-07-15 ケネス・ダブリュー・コーワンズ Variable compression ratio air supply variable efficiency engine (VCRC engine)
JP2008180235A (en) * 2000-11-29 2008-08-07 Kenneth W Cowans High efficiency engine with variable compression ratio and charge
GB2393332A (en) * 2002-07-15 2004-03-24 Sumitomo Metal Method of fabricating a ceramic circuit board using conductor paste with chosen shrinkage properties.
GB2393332B (en) * 2002-07-15 2006-03-08 Sumitomo Metal Conductor paste, method of printing the conductor paste and method of fabricating ceramic circuit board

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