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. 29, 2015
Filed:
Jan. 31, 2013
Toshikazu Kato, Toyota, JP;
Yusuke Fujitsu, Anjo, JP;
Toshikazu Kato, Toyota, JP;
Yusuke Fujitsu, Anjo, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
DENSO CORPORATION, Kariya-shi, JP;
Abstract
When a detected value for detecting a rich imbalance in air-fuel ratio among cylinders, in a state where an intake air amount of an engine falls within a low amount region, is lower than a first threshold corresponding to the intake air amount and is higher than or equal to a second threshold corresponding to the intake air amount, a hybrid electronic control unit controls the engine such that the intake air amount falls within a high amount region, and controls a motor generator such that electric power corresponding to a power increase amount is consumed. When the intake air amount falls within the high amount region, the hybrid electronic control unit detects a rich imbalance in air-fuel ratio among the cylinders by comparing the detected value with a third threshold corresponding to the intake air amount.