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:
Jun. 07, 2005
Filed:
Apr. 03, 2003
Katsuhiko Miyamoto, Kyoto, JP;
Hideo Nakai, Siga, JP;
Katsuyuki Maeda, Siga, JP;
Seiji Shiota, Kyoto, JP;
Katsuhiko Miyamoto, Kyoto, JP;
Hideo Nakai, Siga, JP;
Katsuyuki Maeda, Siga, JP;
Seiji Shiota, Kyoto, JP;
Mitsubishi Jidosha Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An idle speed control apparatus for an internal combustion engine is provided which, when the internal combustion engine is started in a cold mode, provides ignition timing engine speed control (m) such that ignition timing in which said ignition driving device performs ignition in the internal combustion engine is retarded and the engine speed of the internal combustion engine is controlled to the target engine speed, and then provides intake air quantity engine speed control (m) such that the engine speed of the internal combustion engine is feedback-controlled to the target engine speed by controlling the intake air quantity of the internal combustion engine. As a result, it is possible to prevent the exhaust gas temperature from being increased insufficiently due to a deficiency in retard angle, and to prevent the activation of a catalytic converter from being delayed.