Method and apparatus for controlling a component by feed-forward closed-loop controller state modification
AssigneeArvin Technologies, Inc.
InventorRandall J. Johnson
Life of this patent
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Abstract
An apparatus comprises a feed-forward arrangement and a closed-loop controller. The feed-forward arrangement is configured to determine a change of a system, the system change being independent of an output of a component of the system. The feed-forward arrangement is further configured to generate a feed-forward signal representative of the system change. The controller is configured to modify a state of the controller in response to the feed-forward signal and to perform closed-loop control of the component based on its modified state.
Claims18
A method of controlling an emission abatement device of an emission abatement system, comprising the steps of:
- determining a change of the emission abatement system, the emission abatement system change being independent of an output of the emission abatement device,
- generating a feed-forward signal representative of the emission abatement system change,
- attenuating noise in the feed-forward signal,
- modifying a state of a closed-loop controller with the feed-forward signal, and
- performing closed-loop control of the component based on the modified state of the controller.
An apparatus, comprising:
- an emission abatement system comprising an emission abatement device,
- a feed-forward arrangement configured to determine a change of the emission abatement system and configured to generate a feed-forward signal representative of the emission abatement system change, the emission abatement system change being independent of an output of the emission abatement device, wherein the feed-forward arrangement includes a noise attenuator configured to attenuate noise in the feed-forward signal, and
- a closed-loop controller configured to modify a state of the controller in response to the feed-forward signal and to perform closed-loop control of the emission abatement device based on the modified state of the controller.
Dependencies are inferred from the claim text.