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. 28, 2002
Filed:
Jun. 30, 2000
Wakichi Kondo, Kariya, JP;
Denso Corporation, Kariya, JP;
Abstract
An apparatus for controlling an internal combustion engine controls an air amount bypassing a throttle valve of the engine. The air amount is decreased according to a difference between an actual rotational speed and a target rotational speed after a completion of a fuel-cut. Therefore, the rotational speed is quickly lowered. The decrease control is finished when the actual rotational speed reaches near a target rotational speed, simultaneously a feedback control is started. The feedback control accurately maintains the actual rotational speed at the target rotational speed. As a result, it is possible to improve fuel consumption and to prevent a stall and a vibration of the engine.