System and method for controlling a catalyst temperature in an HCCI combustion engine

• Main Authors: RAMAPPAN VIJAY, SHIBATA JONATHAN T, RAYL ALLEN B
• Format: Patent
• Language: Chinese; English
• Published: 02.02.2011
• 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; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

A method and system for controlling an engine includes a homogenous charge compression ignition (HCCI) mode control module that operates an engine in HCCI mode and a condition monitor module that monitors operating conditions of the engine. The control module also includes a condition predictor module that generates a first predicted condition of a catalyst in response to the operating conditions of the engine. A comparison module compares the first predicted condition to a first threshold. A spark injection mode control module operates the engine in a spark injection mode in response to comparing.