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:
Dec. 20, 2005
Filed:
Aug. 08, 2001
Masatoshi Hoshino, Tsuchiura, JP;
Minoru Oosuga, Hitachinaka, JP;
Masatoshi Hoshino, Tsuchiura, JP;
Minoru Oosuga, Hitachinaka, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A control device for a throttle valve, by dispensing a position sensor for the throttle valve, can reduce a cost of the sensor and which is excellent in durability and reliability and is reduced in its control delay. The control device includes an air flow sensorfor detecting an air flow rate flowing through a intake pipe of an internal combustion engine, a motorfor driving the throttle valvedisposed in the intake pipe and an ECUfor controlling the driving operation of the motor. The ECUfeedback-controls the output of the air flow sensor so that a difference between the output of the air flow sensorand an air flow rate required for the engine reduces.