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US 11,220,970 B1Granted
System and method for controlling boost pressure
AssigneeFord Global Technologies, LLC
InventorsThomas Alan Brewbaker, Michiel J. Van Nieuwstadt
Life of this patent
Estimating the term…
Abstract
Methods and systems for an engine controller are described. In one example, the engine controller includes a reference control system and a disturbance rejection control system. The engine controller avoids use of integral feedback in the reference control system, while permitting integral feedback in the disturbance rejection control system, to improve controller response without unduly increasing engine pumping work.
Claims20
A method for operating an engine, comprising:
- adjusting a state of the engine via a reference control system and a disturbance rejection control system, where the reference control system does not include integral feedback and where the disturbance rejection control system includes integral feedback.
An engine system, comprising:
- an internal combustion engine including a turbocharger;
- and
- a controller including executable instructions stored in non-transitory memory that cause the controller to adjust output of the turbocharger via a reference control system and a disturbance rejection control system, the reference control system including gains that cause output of the turbocharger to change at a first rate during increases in engine speed and that cause the output of the turbocharger to change at a second rate during reductions in engine speed.
A method for operating an engine, comprising:
- adjusting a state of the engine via a reference control system and a disturbance rejection control system, where the reference control system does not include integral feedback and where the disturbance rejection control system includes integral feedback, and where the disturbance rejection control system includes input of a sum of a feedforward term and output of a reference controller.
Dependencies are inferred from the claim text.