Patent ID: 6484686
Filing Date: 2002-11-26
Classification: F02D

Abstract:
A method, comprising:operating a diesel engine including a first set of at least one combustion chamber and a second set of at least one combustion chamber; determining an operating state of the diesel engine, the operating state including a drive state and an idle state; sensing the temperature of air within the intake manifold of the diesel engine to provide a temperature comparison value; injecting fuel into the first set of at least one combustion chamber and the second set of at least one combustion chamber in response to said determining the diesel engine is operating in the drive state; delivering fuel into the first set of at least one combustion chamber and the second set of at least one combustion chamber for a predetermined period of time in response to said determining the diesel engine is operating in the idle state and the temperature comparison value being less than or equal to a predetermined temperature value; and injecting fuel to only the first of the at least one combustion chamber in response to said determining that the diesel engine is operating in the idle state and that the temperature comparison value is less than or equal to the predetermined value, said injecting occurs sequentially after said delivering.