Title:
CONTROL METHOD FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2005127169
Kind Code:
A
Abstract:
To reduce load on a starter when an internal combustion engine is started and increase startability without complicating the system of the internal combustion engine by lowering an actual effective compression ratio according to the state of the internal combustion engine at its start by varying the intake valve opening timing of a cylinder in an expansion stroke.
The intake valve opening timing is regulated to controllably lower the actual effective compression ratio of the cylinder tin the compression stroke. Also, the actual effective compression ratio of the cylinder in the compression stroke is determined by the position of a piston at the time of start of the internal combustion engine.
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Inventors:
YOSHIDA TAKASHI
NOGI TOSHIJI
TOKUYASU NOBORU
NOGI TOSHIJI
TOKUYASU NOBORU
Application Number:
JP2003361394A
Publication Date:
May 19, 2005
Filing Date:
October 22, 2003
Export Citation:
Assignee:
HITACHI LTD
International Classes:
F02D13/02; F02D41/06; F02D41/34; F02D43/00; F02D45/00; F02N11/08; F02N99/00; F02D41/40; (IPC1-7): F02D13/02; F02D41/06; F02D41/34; F02D43/00; F02D45/00; F02N11/08; F02N17/00
Attorney, Agent or Firm:
Yasuo Sakuta
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