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:
Jul. 07, 2020
Filed:
Jan. 29, 2019
Mitsubishi Electric Corporation, Tokyo, JP;
Takahiko Ono, Hyogo, JP;
Mitsubishi Electric Corporation, Chiyoda-ku, Tokyo, JP;
Abstract
While an actuator is driven by an actuator driving unit with an operation amount for which the maximum value is limited by an operation amount limitation unit, if a state in which the actual opening degree of a wastegate valve does not coincide with a target opening degree has continued for a predetermined time period, driving by the actuator driving unit is attempted with an operation amount for which the maximum value limitation is relaxed by an operation amount limitation relaxing unit. Even after this, if the state in which the actual opening degree of the wastegate valve does not coincide with the target opening degree still has not been eliminated, an abnormality determination unit determines that abnormality has occurred in an opening degree control system for the wastegate valve.