Fuel content detection based on a measurement from a sensor and a model estimation of the measurement

Patent metadata

Field	Value
Publication number	US-10851725-B2
Application number	US-201816224070-A
Country	US
Kind code	B2
Filing date	Dec 18, 2018
Priority date	Dec 18, 2018
Publication date	Dec 1, 2020
Grant date	Dec 1, 2020

Abstract

A fuel content detection system is disclosed. The fuel content detection system may include an engine control module (ECM) to receive a measurement of a parameter. The parameter may correlate with an amount of a substance in a fuel that is being consumed in an engine. The ECM may determine an estimation of the parameter based on a model. The model may use a predetermined value associated with the amount of the substance, and the engine may be configured to consume a designated type of fuel that includes an amount of the substance that corresponds to the predetermined value. The ECM may determine, based on the estimation and the measurement not being within a threshold range, that the fuel is not the designated type of fuel and perform an action associated with the engine.

First claim

What is claimed is:

1. A method, comprising:
receiving a measurement of a parameter,
wherein the measurement correlates with an amount of a substance in a fuel used during operation of an engine;

determining, using a model, an estimation of the parameter,
wherein, to determine the estimation of the parameter, the model uses a predetermined value associated with the amount of the substance;

determining, based on the estimation and the measurement, whether the predetermined value is representative of the amount of the substance in the fuel,
wherein the predetermined value is determined to be representative of the amount of the substance when the estimation is within a threshold range of the measurement; and

performing, based on whether the predetermined value is determined to be representative of the amount of the substance in the fuel, an action associated with the engine.

2. The method of claim 1 , wherein the measurement is received from a soot level sensor,
wherein the parameter corresponds to a soot level in a filter of the engine,
wherein the measurement corresponds to a measured amount of soot in the filter, and

wherein the model is a soot level estimation model,
wherein the estimation corresponds to an estimated amount of soot in the filter.

3. The method of claim 1 , wherein the measurement is received from a nitrogen oxide (NOx) emission sensor,
wherein the parameter corresponds to a NOx level of exhaust of the engine,
wherein the measurement corresponds to a measured amount of NOx in the exhaust, and

wherein the model is a NOx level estimation model,
wherein the estimation corresponds to an estimated amount of NOx in the exhaust.

4. The method of claim 1 , wherein the measurement is received from an ammonia emission sensor,
wherein the parameter corresponds to an ammonia level of exhaust of the engine,
wherein the measurement corresponds to a measured amount of ammonia in the exhaust, and

wherein the model is an ammonia level estimation model,
wherein the estimation corresponds to an estimated amount of ammonia in the exhaust.

5. The method of claim 1 , wherein the measurement is associated with an amount of fuel for a hydrocarbon dosing of a diesel oxidation catalyst (DOC),
wherein the parameter corresponds to the amount of fuel supplied during the hydrocarbon dosing, and
wherein the model is a hydrocarbon dosing estimation model,
wherein the estimation corresponds to an estimated amount of fuel supplied for the hydrocarbon dosing.

6. The method of claim 1 , wherein the engine is configured to operate using a designated fuel type,
wherein the designated fuel type has the amount of the substance that corresponds to the predetermined value, and
when the predetermined value is determined to be representative of the amount of the substance in the fuel, the method comprises:
determining that a type of the fuel is the designated fuel type, and
wherein performing the action comprises:
enabling operation of the engine in accordance with the designated fuel type.

7. The method of claim 1 , wherein, when the predetermined value is determined to be not representative of the amount of the substance in the fuel, performing the action comprises:
causing the engine to be controlled to modify operation of the engine.

8. The method of claim 1 , wherein, when the predetermined value is determined to be not representative of the amount of the substance in the fuel, performing the action comprises:
providing a notification, to a user device that is communicatively coupled with the engine control module, to indicate that the engine may be consuming a fuel that includes an amount of the substance that is different from the amount of the substance represented by the predetermined value.

9. The method of claim 1 , wherein, when the predetermined value is determined to not be representative of the amount of the substance in the fuel, performing the action comprises:
processing iterations of the model using different quantities of the substance;
determining an estimated amount of the substance,
wherein the estimated amount of the substance corresponds to an amount that provides, in one of the iterations, an estimation of the parameter that is within the threshold range of the measurement; and

causing the engine to be controlled based on the determined estimated amount of the substance.

10. The method of claim 1 , wherein the substance is sulfur.

11. An engine control module, comprising:
a memory; and
one or more processors, communicatively coupled to the memory, to:
receive a measurement of a parameter,
wherein the parameter correlates with an amount of a substance in a fuel that is being consumed in an engine;

determine an estimation of the parameter based on a model,
wherein the model uses a predetermined value associated with the amount of the substance,
wherein the engine is configured to consume a designated type of fuel that includes an amount of the substance that corresponds to the predetermined value;

determine, based on the estimation and the measurement not being within a threshold range, that the fuel is not the designated type of fuel; and
perform, based on determining that the fuel is not the designated type of fuel, an action associated with the engine.

12. The engine control module of claim 11 , wherein the parameter comprises at least one of:
a soot level in a filter of the engine,
a nitrogen oxide (NOx) level of exhaust of the engine,
an ammonia level of exhaust of the engine,
an amount of fuel supplied during a hydrocarbon dosing of a diesel oxidation catalyst (DOC) of the engine, or
a temperature of an exhaust aftertreatment device, of the engine, during a hydrocarbon dosing.

13. The engine control module of claim 11 , wherein the substance includes sulfur.

14. The engine control module of claim 11 , wherein the one or more processors, when performing the action, are to at least one of:
cause the engine to be controlled to decrease a power output relative to a standard operation of the engine, or
cease an operation to prevent the engine from consuming the fuel.

15. The engine control module of claim 11 , wherein the one or more processors, when performing the action, are to:
cause the engine to be controlled, via a control device, to operate at an increased temperature, relative to a standard operation of the engine, to reduce the amount of the substance in the fuel.

16. A system comprising:
an engine configured to, during operation, consume a designated type of fuel that includes a threshold amount of sulfur;
a sensor; and
an engine control module configured to, while the engine is consuming a fuel during operation:
receive, from the sensor, a measurement of a parameter of the engine,
wherein the parameter correlates with an amount of sulfur in the fuel;

determine, using a model, an estimation of the parameter,
wherein, to determine the estimation of the parameter, the model assumes a value of the amount of sulfur in the fuel that correlates with the threshold amount of sulfur;

determine, based on the estimation and the measurement, that the amount of sulfur in the fuel does not satisfy the threshold amount of sulfur; and
perform, based on determining that the amount of sulfur in the fuel does not satisfy the threshold amount of sulfur, an action associated with the engine.

17. The system of claim 16 , wherein the parameter comprises at least one of:
a soot level in a filter of the engine,
a nitrogen oxide (NOx) level of exhaust of the engine,
an a

Assignees

• Caterpillar Inc

Inventors

• Charbonnel Sylvain

Classifications

• Y02T10/40

  Engine management systems · CPC title

• F02D41/02 Primary

  Circuit arrangements for generating control signals · CPC title

• F01N2610/03

  the substance being hydrocarbons, e.g. engine fuel · CPC title

• F02D41/0235

  in relation with the state of the exhaust gas treating apparatus (control of exhaust gas treating apparatus per se F01N) · CPC title

• F02D41/1462

  with determination means using an estimation · CPC title