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:
Feb. 01, 2000
Filed:
Jul. 15, 1998
Kunihiko Sato, Okazaki, JP;
Kazutaka Nonoyama, Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Denso Corp., Kariya, JP;
Abstract
A throttle valve control device in an internal-combustion engine having an electronically-controlled throttle valve is provided for calculating a final target opening based on an engine operation state, which includes an accelerator depression amount, and an ISC request opening for adjusting a revolutional speed of the engine to a target revolutional speed during an idling operation, and for electronically controlling the throttle valve so as to adjust the throttle valve opening to the final target opening. The device of the present invention includes a correction section for correcting the ISC request opening based on an amount of variation in the revolutional speed of the engine when the final target opening is identical to the ISC request opening, while prohibiting the correction of the ISC request opening when the final target opening is not identical to the ISC request opening.