Invention Application
- Patent Title: ABNORMALITY DETECTION APPARATUS AND ABNORMALITY DETECTION METHOD FOR MULTI-CYLINDER INTERNAL COMBUSTION ENGINE
- Patent Title (中): 多缸内燃机异常检测装置及异常检测方法
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Application No.: US13480921Application Date: 2012-05-25
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Publication No.: US20120303248A1Publication Date: 2012-11-29
- Inventor: Masashi Hakariya , Isao Nakajima , Yoshihisa Oda , Hitoshi Tanaka , Kiyotaka Kushihama , Shota Kitano , Kazuyuki Noda , Katsumi Adachi , Yuichi Kohara , Akihiro Katayama
- Applicant: Masashi Hakariya , Isao Nakajima , Yoshihisa Oda , Hitoshi Tanaka , Kiyotaka Kushihama , Shota Kitano , Kazuyuki Noda , Katsumi Adachi , Yuichi Kohara , Akihiro Katayama
- Applicant Address: JP Toyota-shi
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Toyota-shi
- Priority: JP2011-118133 20110526
- Main IPC: F02D41/30
- IPC: F02D41/30 ; F02D41/26
Abstract:
An abnormality detection apparatus for a multi-cylinder internal combustion engine changes a fuel injection quantity of a predetermined target cylinder to detect an abnormality of an internal combustion engine based on values of rotational variations relating to the target cylinder detected before and after the change of the fuel injection quantity. The abnormality detection apparatus corrects the values of the rotational variations relating to the target cylinder detected before and after the change of the fuel injection quantity based on at least one of the number of revolutions of the engine and an engine load at a corresponding detection time.
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