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Title:
SWITCHING CONTROL OF COMBUSTION METHOD IN VARIABLE COMBUSTION METHOD ENGINE
Document Type and Number:
Japanese Patent JP2004116446
Kind Code:
A
Abstract:

To make a stable, quick switch to self-ignition in an engine which uses both spark ignition and self-ignition.

A combustion method of the engine is switched to self-ignition of two cycles or spark ignition of four cycles in accordance with rotation speed and required load. At the time of switching from the spark ignition to the self-ignition, processing for raising temperature of compression end is applied in order to realize stable self-ignition when temperature of exhaust is low, whereas the processing is skipped when temperature of exhaust is high. Quick switching can be realized while simultaneously starting stable self-ignition by judging whether not or processing for raising the temperature of the compression end is required on the basis of the temperature of the exhaust.


Inventors:
KIKORI SHIGEO
KATSUMATA MASAJI
KOBAYASHI TATSUO
CHIBA FUMITO
NAKADA KOICHI
NAKANO MICHITAKA
Application Number:
JP2002282863A
Publication Date:
April 15, 2004
Filing Date:
September 27, 2002
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
TOYOTA CENTRAL RES & DEV
International Classes:
F02B69/06; F02B1/12; F02B11/00; F02D13/02; F02D41/02; F02D41/30; F02M25/07; F02P5/15; (IPC1-7): F02B1/12; F02B11/00; F02B69/06; F02D13/02; F02D41/02; F02M25/07; F02P5/15
Attorney, Agent or Firm:
Meisei International Patent Office