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:
Apr. 02, 1985
Filed:
Oct. 14, 1981
Mitsunori Takao, Kariya, JP;
Toshiaki Mizuno, Nagoya, JP;
Nippondenso Co., Ltd., Kariya, JP;
Abstract
In accordance with an amount of a change or a proportion of the change of at least one of operating parameters, such as a crankshaft rotational speed, an intake pipe pressure, etc., of an internal combustion engine equipped with an electronically controlled fuel injection system, or a rate of incremental change of the amount of the change or the proportion of the change and in dependence on whether air-fuel ratio feedback compensation by the use of an oxygen sensor is effected or not, at least one of control variables, such as a fuel injection quantity, ignition timing, etc., is corrected to ensure stable control of the rotational speed of the engine during its idling and low speed operations.