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:
Apr. 23, 2019
Filed:
Jan. 23, 2017
Subaru Corporation, Tokyo, JP;
Daiki Shiwa, Tokyo, JP;
SUBARU CORPORATION, Tokyo, JP;
Abstract
A control apparatus includes a waste gate valve that opens and closes a passage bypassing a turbine in an exhaust passage of an engine, an air bypass valve that opens and closes a passage bypassing a compressor in an intake passage of the engine, a pressure measuring unit that measures a pressure at a downstream side of the compressor, an air-amount measuring unit that measures an amount of air flowing into the intake passage, an air-bypass-valve controller that opens the air bypass valve when a throttle valve in the intake passage is closed, a closed-state-malfunction diagnosing unit that diagnoses a closed-state malfunction of the air bypass valve based on a fluctuation in the measured amount of air when the throttle valve is closed, and a waste-gate-valve controller that closes the waste gate valve if the measured pressure is lower than a predetermined pressure when the throttle valve is closed.