Multivariable actuator control for an internal combustion engine
AssigneeGeneral Motors Corporation
InventorAnupam Gangopadhyay
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Abstract
A system and method for controlling a plurality of control-coupled charge-handling actuators for an internal combustion engine has a multivariable controller responsive to a plurality of engine parameter inputs and effective to provide a plurality of position control signals to the charge handling actuators. Coupling effects of the charge-handling actuator are effectively addressed by the present multivariable control leading to substantial improvements in engine emissions particularly during transient operating conditions.
Claims18
Method for controlling a plurality of control-coupled charge-handling actuators in an internal combustion engine, comprising:
- providing desired engine operating setpoints for engine intake oxygen fraction and engine intake pressure;
- determining deviations of engine intake oxygen fraction and engine intake pressure relative to said operating setpoints for engine intake oxygen fraction and engine intake pressure;
- providing said deviations to a multivariable controller;
- and,
- providing position control signals to said plurality of control-coupled charge-handling actuators from said multivariable controller.
System for controlling a plurality of control-coupled charge-handling actuators in an internal combustion engine, comprising:
- means for providing desired engine operating setpoints for engine intake oxygen fraction and engine intake pressure;
- means for determining deviations of the engine intake oxygen fraction and engine intake pressure relative to said operating setpoints for engine intake oxygen fraction and engine intake pressure;
- a multivariable controller having a plurality of inputs and outputs, said plurality of inputs including said deviations of engine intake oxygen fraction and engine intake pressure, said plurality of outputs including position control signals to said plurality of control-coupled charge-handling actuators.
Dependencies are inferred from the claim text.