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:
Nov. 05, 2002
Filed:
Aug. 31, 2000
Yasuhiro Kamimura, Hitachinaka, JP;
Yasushi Sasaki, Naka-gun, JP;
Norio Tomita, Hitachinaka, JP;
Tsugio Tomita, Hitachi, JP;
Syuuichi Nakano, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
An electronic control throttle body has a default mechanism for securing the self-propelling of a vehicle at the time of faulty. A throttle control unit controls the position of a throttle valve by using a motor on the basis of a target throttle valve opening degree obtained by an engine control unit. In this respect, when the target throttle valve opening degree inputted from the engine control unit crosses over a default opening degree f0 of a default mechanism, an integration value having been added is set to 0, and an integration value having been calculated hereinafter is added to the set value to thereby perform a feedback control.