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:
Nov. 08, 2011
Filed:
Feb. 05, 2008
Akira Yamashita, Susono, JP;
Isao Matsumoto, Suntou-gun, JP;
Naofumi Magarida, Susono, JP;
Hiroki Murata, Gotenba, JP;
Hiroyuki Haga, Susono, JP;
Takenori Saoda, Susono, JP;
Akira Yamashita, Susono, JP;
Isao Matsumoto, Suntou-gun, JP;
Naofumi Magarida, Susono, JP;
Hiroki Murata, Gotenba, JP;
Hiroyuki Haga, Susono, JP;
Takenori Saoda, Susono, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-Ken, JP;
Abstract
A control apparatus for an internal combustion engine includes an exhaust gas recirculation unit; an intercooler that is provided in the intake passage, at a position downstream of a position to which the exhaust gas is recirculated back; a bypass passage through which an intake air flow bypasses the intercooler. When it is determined that the pH of the condensed water obtained from the exhaust gas is at the level at which the intercooler corrodes in the state where the exhaust gas is recirculated back by the exhaust gas recirculation unit, the control apparatus executes a control for cutting off an intake air flow toward the intercooler to direct the intake air flow only to the bypass passage. Thus, it is possible to ensure reliability of the intercooler.