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:
Jun. 20, 2017
Filed:
Jul. 22, 2015
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Takashi Suzuki, Ichinomiya, JP;
Tomoya Suzuki, Nagakute, JP;
Chisa Watanabe, Okazaki, JP;
Tatsuya Fujii, Nagakute, JP;
Akihiro Kaneko, Nisshin, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A multi-cylinder internal combustion engine includes: a first fuel injection valve that injects fuel into each cylinder; a second fuel injection valve that injects fuel into an intake passage; and an exhaust recirculation device that causes some of exhaust flowing in an exhaust passage to recirculate into the intake passage. A control device is used in the multi-cylinder internal combustion engine. The control device limits recirculation of exhaust into the intake passage by the exhaust recirculation device when imbalance determination is conducted during engine operation by fuel injection from the first fuel injection valve only, compared to when imbalance determination is conducted during engine operation involving fuel injection from the second fuel injection valve.