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. 21, 1987
Filed:
Apr. 24, 1985
Nobuyoshi Onogi, Nagoya, JP;
Mamoru Shimamoto, Nagoya, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
An ignition system for controlling the distribution of ignition signals among a plurality of cylinders of a multi-cylinder internal combustion engine. An ignition timing signal and a BCD code signal obtained by counting (3) the cylinder discrimination signal generated at predetermined intervals of crank angle in accordance with the engine speed and a default signal produced at the time of a trouble with the ignition system are applied to a distribution ROM (5). The ROM, in turn, applies an ignition timing signal to each cylinder on the basis of stored data in accordance with the combination of these input signals. A fixed-position ignition is established at the time of a trouble.