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:
Sep. 10, 2002
Filed:
Apr. 20, 2001
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A cylinder identifying system for an internal combustion engine capable of establishing a complicated cam signal pulse pattern without need for setting specific periods for cylinder identification while enhancing control performance by reducing a crank rotation angle required for cylinder identification. A cylinder identifying means ( ) for identifying discriminatively individual cylinders on the basis of a crank angle pulse signal (SGT) and a cam pulse signal (SGC) includes a pulse signal number storage means ( ) for counting for storage signal numbers of specific pulses generated over a plurality of subperiods which are defined by dividing an ignition control period for each of the individual cylinders into plural subperiods, and an information series storage means ( ) for storing information series each composed of a combination of the signal numbers generated during plural subperiods, respectively. The individual cylinders are identified on the basis of the information series.