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:
Jul. 04, 1978
Filed:
Oct. 18, 1976
Hiroshi Yoshida, Aichi, JP;
Kiyokazu Konishi, Kariya, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
An ignition timing control system comprises a sensor for detecting a reference point of the crankshaft of an internal combustion engine in synchronism with the rotation of the crankshaft, a speed detector for detecting the rotational speed of the crankshaft, a processor responsive to an interruption request by the reference signal from the sensor for temporarily stopping the computational operation being executed at that time and computing a time period from the time of the interruption request to the point of ignition in accordance with a desired spark advance value and the speed signal from the speed detector to produce the corresponding computed value, and an ignition command circuit for applying an ignition command signal to the ignition system of the engine at the expiration of a time corresponding to the computed value from the processor.