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:
May. 31, 1994
Filed:
Feb. 24, 1993
Hajime Kako, Himeji, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An electronic control apparatus for an internal combustion engine includes a microprocessor for calculating an atmospheric pressure value by using an arithmetic formula in which the ratio of a charging efficiency obtained by an intake air flow rate to a memorized set value is used, wherein the microprocessor calculates the atmospheric pressure value when a steady operation detecting means detects the operational condition of the engine to be a steady operation for a first predetermined period of time, and uses the calculated atmospheric pressure value in order to control the engine only when the steady operation detecting means detects the engine to be the steady operation for a second predetermined period of time.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile