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:
Aug. 27, 2024
Filed:
Jul. 21, 2023
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Yusuke Joh, Toyota, JP;
Tomoyuki Tsuji, Nagakute, JP;
Yuki Ikejiri, Nishio, JP;
Masashi Hakariya, Nisshin, JP;
Makoto Yamazaki, Gotemba, JP;
Yoshikazu Asami, Gotemba, JP;
Hisao Kiyono, Toyota, JP;
Tatsuaki Arisawa, Toyota, JP;
Yoshifumi Matsuda, Toyota, JP;
Tsubasa Sugano, Nisshin, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
An upstream integrated value is an integrated value of a difference obtained by subtracting an upstream gas temperature at a starting point in time of integration from the upstream gas temperature after starting of the internal combustion engine. A downstream integrated value is an integrated value of a difference obtained by subtracting a downstream gas temperature at the starting point in time of the integration from the downstream gas temperature after the starting of the internal combustion engine. An anomaly diagnosing process obtains an anomaly determination result indicating that the exhaust purification device is in a removed state when a deviation between the upstream integrated value and the downstream integrated value is smaller than a reference level. The determination threshold is higher than a dew point.