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:
Jan. 06, 1987
Filed:
Jun. 11, 1984
Kouichi Izumi, Higashimatsuyama, JP;
Diesel Kiki Co., Ltd., , JP;
Abstract
A rotational speed change amount detecting apparatus for an internal combustion engine comprises a pulse generator for generating reference pulses representing detection of a reference rotational position of the engine, a first computer for computing the average engine speed over one combustion cycle of the engine on the basis of the time interval between the pulses, a second computer for computing, after every m pulses, the rate of speed change of the engine from the average engine speed for the most recent cycle and that for m pulses earlier, and an integrator for integrating the rate of speed change output from the second computer to obtain the amount of change in the rotational speed of the engine.