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. 03, 2005
Filed:
Sep. 20, 2004
Teruaki Kawakami, Tokyo, JP;
Tadahiro Azuma, Tokyo, JP;
Toshiki Kuroda, Hyogo, JP;
Hiroyuki Kobayashi, Hyogo, JP;
Teruaki Kawakami, Tokyo, JP;
Tadahiro Azuma, Tokyo, JP;
Toshiki Kuroda, Hyogo, JP;
Hiroyuki Kobayashi, Hyogo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
A control apparatus for an internal combustion engine can limit a vehicle speed within a permitted maximum speed with high accuracy by preventing a response delay of a throttle opening with respect to an amount of intake air while avoiding deterioration of driveability. The apparatus includes a target opening calculating section that calculates a target opening of an electronic throttle valve from an accelerator opening, and an electronic control section that drives the electronic throttle valve to make the throttle opening coincide with the target opening. The target opening calculating section includes a correction factor calculating section that calculates a correction factor for correcting the target opening. The correction factor calculating section sets arithmetic calculation gains of mutually different correction factors for ranges of different characteristics in accordance with characteristics between the throttle opening and the intake air amount, whereby the target opening is controlled to prevent the vehicle speed from exceeding the permitted maximum speed.