METHOD AND APPARATUS FOR SEQUENTIAL CONTROL OF AIR INTAKE COMPONENTS OF A GAS-FUELED COMPRESSION IGNITION ENGINE

摘要

A method of controlling components in an air intake system for an internal combustion engine (10) uses sequential control. The method includes sequentially controlling the operation of a plurality of components (130, 132, 134) of an air intake system to control an excess air ratio for the engine, including identifying a deviation between an actual value of a parameter indicative of an excess air ratio and a desired value, controlling the first component (130) at a first time, and controlling the second component (132) at a second time that is later than the first time. The controlled components may be a turbo air bypass valve and a turbo wastegate valve.

主权项

1. A method of controlling components in an air intake system for a gaseous fueled compression ignition internal combustion engine, the method comprising:
(A) delivering an air/fuel charge to the engine that includes at least air and a gaseous fuel, the air/fuel charge having an excess air ratio (lambda); (B) sequentially controlling the operation of a plurality of components in an air intake system to control lambda, including
i. identifying a deviation between an actual value of a parameter indicative of lambda and a desired value of the parameter;ii. controlling a first component of the air intake system so as to partially compensate for the deviation, and theniii. controlling a second component of the air intake system to further compensate for the deviation.