CYLINDER DISCRIMINATING DEVICE OF INTERNAL COMBUSTION ENGINE

Japanese Patent JP3768927

B2

PROBLEM TO BE SOLVED: To provide a cylinder discriminating device of an internal combustion engine capable of accurately and surely detecting a reference position for each cylinder without relying upon the rotating state.
SOLUTION: This cylinder discriminating device comprises a means for generating crank angle signals according to the rotation of a crankshaft 12, a means for generating cylinder discriminating signals according to the rotation of a camshaft 11, a means for detecting a reference position based on crank angle signals, a means for setting a cylinder discrimination interval based on the reference position, a means for specifying each cylinder based on the cylinder discrimination signals in the cylinder discrimination interval, and a rotating state detection means for detecting a low rotation range and a high rotation range. The reference position detection means comprises a first detection processing means for validating processing specifications corresponding to a low rotation range operation state and a second detection processing means for validating processing specifications corresponding to a high rotation range operating state. The first and second detection processing means are switchingly used according to the operating state.

Makino
Shiro Yonezawa
Eiji Kanazawa
Watanuki Takuo

JP2002201331A

April 19, 2006

July 10, 2002

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Mitsubishi Electric Corporation

F02D45/00; G01M15/06; (IPC1-7): F02D45/00

JP11287150A
JP2000136765A

Michiteru Soga
Michiharu Soga
Yutaka Ikeya
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Taizo Shiraishi

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