Emissions control

Details Emissions control Emissions control

2007-05-30

2009-02-24

Cronin, Stephen K. (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C123S090150, C060S274000

Reexamination Certificate

active

07496443

ABSTRACT:
A system for controlling a multiple cylinder internal combustion engine is presented. The system operates a first portion of cylinders in a homogeneous charge compression ignition (HCCI) mode and a second portion of cylinders in a non-HCCI mode, and uses an engine controller that is coupled to the first and second portions of cylinders to electronically actuate valves to hold a combusted air and fuel charge in the second portion of cylinders, and exhaust the combusted air and fuel charge to adjust the residual air-to-fuel ratio of the engine.

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