The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 1992
Filed:
Dec. 20, 1991
Kojiro Tsutsumi, Wako, JP;
Masaki Kanehiro, Wako, JP;
Kyozo Futa, Wako, JP;
Sachito Fujimoto, Wako, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An ignition timing control system for an internal combustion engine is operable to detect knocking occurring in the engine, determine basic ignition timing based upon operating conditions of the engine, correct the basic ignition timing by a correction value which is determined in response to an output from a knocking sensor, and inhibit correction of the correction value toward an advanced side with respect to at least one predetermined value in a timing retarding direction which is determined based upon operating conditions of the engine, when the correction value is greater than the at least one predetermined value. The correction value is initialized to a value based upon the difference between the correction value and the at least one predetermined value when the correction value exceeds the at least one predetermine value.