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:
Feb. 10, 1987
Filed:
Jul. 06, 1984
Masahiko Miyaki, Oobu, JP;
Tsuneyuki Egami, Aichi, JP;
Nippondenso Co., Ltd., Kariya, JP;
Nippon Soken, Inc., Nishio, JP;
Abstract
A control signal is generated to actuate a solenoid-operated valve at an angle phase of rotation of an engine for cutting off a fuel supply to an engine cylinder. The control signal is determined by a reference angle signal produced at a reference angle of rotation of the engine, and a rotational angle signal produced for each crank angle. Rotational angle signals are counted which are produced after each reference angle signal before the angle phase is reached with any remainder angle smaller than the crank angle. The remainder angle is converted into a time based on an average number of r.p.m. of the engine at the time the conversion is effected. The control signal is issued upon elapse of the counted rotational angle signals and the converted time. A ratio of an instantaneous number of r.p.m. of the engine in the vicinity of the angle phase to an average number of r.p.m. of the engine is issued and used for correcting the time converted from the remainder angle with the ratio.