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:
Sep. 19, 2006
Filed:
Jul. 16, 2004
Takao Fukuma, Susono, JP;
Yoshiyuki Takahashi, Kariya, JP;
Takao Fukuma, Susono, JP;
Yoshiyuki Takahashi, Kariya, JP;
Toyota Jidosha Kabushiki Kaisha, Tokyo, JP;
Kabushiki Kaisha Toyota Jidoshokki, Kariya, JP;
Abstract
An exhaust control apparatus applied to an internal combustion engine in which intake sides of a plurality of cylinder groups are connected to a common intake passage and exhaust sides thereof are connected to different exhaust passages, comprises an exhaust gas flow amount adjusting device for causing a flow amount of exhaust gas, which is discharged through each of the exhaust passages of the cylinder groups, to be changed, an exhaust gas flow amount difference estimating device for estimating a difference in an exhaust gas flow amount between the exhaust passages of the cylinder groups, and an exhaust gas flow amount control device for controlling the exhaust gas flow amount adjusting device so as to reduce the estimated difference in the exhaust gas flow amount.