Homogeneous charge compression ignition engine and method for operating homogeneous charge compression ignition engine

• Main Authors: AOKI SIGERU, KUZUYAMA HIROSHI
• Format: Patent
• Language: English
• Published: 31.01.2006
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROLLING COMBUSTION ENGINES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

A homogeneous charge compression ignition engine that prevents knocking and misfires when changing output and when the load or air-fuel ratio changes due to one reason or another when operating under a predetermined condition. A controller determines whether or not the air-fuel ratio is changing in such a manner that there is a possibility of knocking or misfires occurring by using a map defining a range, in which stable homogeneous charge compression ignition operation is enabled, in relation with the air-fuel ratio and the intake air temperature. When the air-fuel ratio indicates that there is a possibility of knocking or misfires occurring, the controller controls an intake air temperature adjustor to adjust the intake air temperature based on the map.