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:
Nov. 20, 1984
Filed:
Mar. 17, 1983
Katsuyoshi Iida, Higashihiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A control device for a multicylinder engine comprising a knocking detector for detecting the occurrence of knocking, a crank angle sensor for generating a signal indicative of the crank angle, an engine operating condition control device for governing the engine operating condition, and a control circuit for identifying one of the engine cylinders in which knocking has actually occurred, in dependence on both outputs from the detector and the crank angle sensor. The control circuit operates to cause the engine operating condition control device to control the at least one of the engine cylinders when the output from the detector is lower than a predetermined value, but to control all of the engine cylinders when it is higher than the predetermined value.