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. 09, 1986
Filed:
Feb. 08, 1985
Tatsuya Yoshida, Katsuta, JP;
Hiroshi Katada, Mito, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In an engine load detecting apparatus and ignition control apparatus for an internal combustion engine, in accordance with the pulse signals from a reference position detector for detecting a plurality of reference positions of a crankshaft of the engine an interval average rotation speed for each of the intervals between the generation of the pulse signals is calculated and the interval average rotation speeds are utilized in such a manner that a speed pulsation value is obtained from the difference between the maximum and minimum ones thereof and an engine speed is obtained from the average value thereof thereby determining an engine load or ignition timing in accordance with the speed pulsation value and the engine speed.