Engine control system and methods
AssigneeInnio Jenbacher GmbH & Co OG
InventorsJohannes Huber, Herbert Schaumberger
Life of this patent
Estimating the term…
Abstract
A method includes initializing an estimated fuel property associated with a fuel of an engine system. The method also includes determining an estimated quantity associated with operation of the engine based on a model. The method also includes receiving a signal indicative of a measured quantity corresponding to the estimated quantity. The method also includes determining the measured quantity based on the received signal. The method also includes determining a residual based on the estimated quantity and the measured quantity. The method also includes updating the estimated fuel property based on the residual. The method also includes controlling one or more operational parameters of the engine based on the update of the estimated fuel property.
Claims20
A method, comprising:
- initializing an estimated fuel property associated with a fuel of an engine system;
- determining an estimated quantity associated with operation of the engine based on a model;
- receiving a signal indicative of a measured quantity corresponding to the estimated quantity;
- determining the measured quantity based on the received signal;
- determining a residual based on the estimated quantity and the measured quantity;
- updating the estimated fuel property based on the residual;
- and
- controlling one or more operational parameters of the engine based on the update of the estimated fuel property.
A system, comprising:
- an engine;
- and
- a controller having a memory and a processor, wherein the controller is configured to:
- initialize an estimated fuel property associated with a fuel of the engine;
- determine an estimated quantity associated with operation of the engine based on a model;
- receive a signal indicative of a measured quantity corresponding to the estimated quantity;
- determine the measured quantity based on the received signal;
- determine a residual based on the estimated quantity and the measured quantity;
- update the estimated fuel property based on the residual;
- and
- control one or more operational parameters of the engine based on the update of the estimated fuel property.
A tangible, non-transitory, computer-readable medium, comprising computer-readable instructions that, when executed by one or more processors of an electronic device, cause the electronic device to:
- initialize one or more estimated fuel properties associated with a fuel of an engine system;
- determine the one or more estimated fuel properties based on residuals;
- correct the one or more estimated fuel properties based on a model relating the one or more estimated fuel properties;
- estimate an additional fuel property based on the corrected one or more estimated fuel properties;
- determine a fuel fraction of the fuel based on the corrected one or more estimated fuel properties and the additional fuel property;
- update a parameter of a model-based controller based on the corrected one or more estimated fuel properties and the additional fuel property;
- and
- update a calibration of the model-based controller based on the corrected one or more estimated fuel properties, the fuel fraction, or a combination thereof.
Dependencies are inferred from the claim text.