Title:
内燃機関のバルブタイミング制御装置
Document Type and Number:
Japanese Patent JP3625456
Kind Code:
B2
Abstract:
A valve timing control apparatus for an internal combustion engine can be improved in accuracy in the detection of valve timing (cam angles). A crank angle sensor generates a crank angle signal in the form of a train of pulses. Cam angle changing parts change phases of camshafts relative to a crankshaft. Cam angle sensors generate cam angle signals. A reference crank angle detection part detects reference crank angles based on the crank angle signal. Cam angle calculation parts calculate the cam angles of the camshafts based on the crank angle signal and the cam angle signals. A cam angle control part controls the relative phases of the camshafts to the crankshaft so as make them coincide with target cam angles corresponding to operating conditions of the engine. A cam angle calculation part calculates the cam angles by counting the number of pulses of the crank angle signal.
Inventors:
Tatehiko Takahashi
Application Number:
JP2002206909A
Publication Date:
March 02, 2005
Filing Date:
July 16, 2002
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
F01L1/46; F01L1/34; F01L1/344; F01L13/00; F02D13/02; (IPC1-7): F01L1/46; F01L1/34; F01L13/00; F02D13/02
Domestic Patent References:
| JP2002130038A | ||||
| JP2000345868A |
Attorney, Agent or Firm:
Michiteru Soga
Michiharu Soga
Yutaka Ikeya
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Taizo Shiraishi
Michiharu Soga
Yutaka Ikeya
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Taizo Shiraishi