System and method for engine emission control harness

• US 10,125,653 B2
• Filed: 02/19/2015
• Issued: 11/13/2018
• Est. Priority Date: 02/19/2015
• Status: Active Grant

• Current Assignee: Ai Alpine Us Bidco LLC
• Original Assignee: General Electric Company
• Inventors: Selberg, Robert Jarvis, Wentz, Jared J.
• Primary Examiner(s): Hamaoui, David
• Assistant Examiner(s): Scharpf, Susan
• Application Number:
  US14/626,511
• Publication Number:
  US 20160245144A1
• Time in Patent Office: 1,363 Days
• Field of Search: 701103, 701108, 701114, 701115, 60276, 60285, 60286, 60295-303, 123672-703, 7311469, 7311471, 7311472, 7311473, 7311475
• CPC Class Codes: F01N 11/002 the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
• CPC Class Codes: F01N 11/007 the diagnostic devices measuring oxygen or air concentration downstream of the exhaust apparatus
• CPC Class Codes: F01N 2430/06 by varying fuel-air ratio, e.g. by enriching fuel-air mixture
• CPC Class Codes: F01N 2550/02 Catalytic activity of catalytic converters
• CPC Class Codes: F01N 2560/02 the means being an exhaust gas sensor
• CPC Class Codes: F01N 2560/06 the means being a temperature sensor
• CPC Class Codes: F01N 2560/07 the means being an exhaust gas flow rate or velocity meter or sensor, intake flow meters only when exclusively used to determine exhaust gas parameters
• CPC Class Codes: F01N 2900/0408 using a feed-back loop
• CPC Class Codes: F01N 2900/08 said parameters being related to the engine
• CPC Class Codes: F01N 2900/1402 Exhaust gas composition
• CPC Class Codes: F01N 2900/1404 Exhaust gas temperature
• CPC Class Codes: F01N 2900/1406 Exhaust gas pressure
• CPC Class Codes: F01N 9/007 Storing data relevant to operation of exhaust systems for later retrieval and analysis, e.g. to research exhaust system malfunctions
• CPC Class Codes: F02D 2041/281 between sensors and control unit
• CPC Class Codes: F02D 2200/604 Engine control mode selected by driver, e.g. to manually start particle filter regeneration or to select driving style
• CPC Class Codes: F02D 2400/22 Connectors or cables specially adapted for engine management applications
• CPC Class Codes: F02D 41/1441 Plural sensors
• CPC Class Codes: F02D 41/2432 Methods of calibration
• CPC Class Codes: F02D 41/2435 characterised by the writing medium, e.g. bar code
• CPC Class Codes: F02D 41/2474 Characteristics of sensors
• CPC Class Codes: F02D 41/28 : Interface circuits
• CPC Class Codes: G01M 15/05 : by combined monitoring of two or more different engine parameters
• CPC Class Codes: Y02T 10/40 : Engine management systems

Abstract

A method includes determining an identity of each sensor of a plurality of sensors arranged within an engine system and coupled to a harness of the engine system, loading a calibration for each sensor of the plurality of sensors from a memory based at least in part on the determined identity of the respective sensor, and determining a configuration of the plurality of sensors based at least in part on the determined identities of the plurality of sensors. The plurality of sensors includes exhaust sensors configured to monitor a flow property of engine exhaust.

Claims

1. A system comprising:

an engine control system, comprising;

a harness comprising a processor and a plurality of ports, wherein each port of the plurality of ports is configured to couple with a sensor;

a memory configured to store calibrations and control modes corresponding to a plurality of sensor configurations;

wherein the processor is coupled to the memory, wherein the engine control system is configured to load a first set of calibrations from the memory corresponding to a first configuration of sensors and to control emissions from an engine system in a first control mode when the processor determines that the first configuration of sensors is coupled to the harness, and the engine control system is configured to load a second set of calibrations from the memory corresponding to a second configuration of sensors and to control the emissions from the engine system in a second control mode when the second configuration of sensors is coupled to the harness, wherein the processor is configured to identify each sensor of a plurality of sensors coupled to the harness based at least in part on an identification signal of the respective sensor, wherein the identification signal of each sensor corresponds to a property of the respective sensor.

2. The system of claim 1, comprising a plurality of sensors coupled to respective ports of the plurality of ports, wherein the plurality of sensors are configured to monitor one or more flows of the engine system, and the plurality of sensors comprise a composition sensor, a temperature sensor, or a pressure sensor, or any combination thereof.

3. The system of claim 1, wherein the first configuration of sensors comprises a pre-catalyst composition sensor, the first control mode is an open-loop pre-catalyst control mode, the second configuration of sensors comprises a post-catalyst composition sensor, and the second control mode is a closed-loop post-catalyst control mode.

4. The system of claim 3, comprising a catalyst configured to receive exhaust from an engine of the engine system, wherein the pre-catalyst composition sensor of the first configuration of sensors is disposed upstream of the catalyst relative to a flow direction of the exhaust, and the post-catalyst composition sensor of the second configuration of sensors is disposed downstream of the catalyst relative to the flow direction of the exhaust.

5. The system of claim 4, comprising a fuel adjustment device coupled to the processor and to the engine, wherein the fuel adjustment device is configured to supply an oxidant-fuel mixture to the engine, the open-loop pre-catalyst control mode is configured to control the oxidant-fuel mixture based at least in part on feedback from the pre-catalyst composition sensor, and the closed-loop post-catalyst control mode is configured to control the oxidant-fuel mixture based at least in part on feedback from the post-catalyst composition sensor.

6. The system of claim 1, wherein the first configuration of sensors comprises a pre-catalyst composition sensor, the first control mode is an open-loop pre-catalyst control mode, the second configuration of sensors comprises a pre-catalyst composition sensor and a post-catalyst composition sensor, and the second control mode is a closed-loop post-catalyst control mode.

7. The system of claim 6, comprising a human machine interface (HMI) coupled to an engine control module, wherein the engine control module is coupled to the harness and configured to display controls on the HMI for the open-loop pre-catalyst control mode and to disable controls on the HMI for the closed-loop post-catalyst control mode when the first configuration of sensors is coupled to the harness, and the engine control module is configured to enable controls on the HMI for the closed-loop post-catalyst control mode when the second configuration of sensors is coupled to the harness.

8. The system of claim 1, wherein the identification signal of each sensor comprises an identification signal of the respective sensor, and the property of each sensor comprises a type of the respective sensor, a size of the respective sensor, an accuracy of the respective sensor, design conditions of the respective sensor, or any combination thereof.

9. The system of claim 1, wherein the identification signal of each sensor comprises an identification signal indicative of a manufacturer of the respective sensor.

10. The system of claim 1, wherein the harness comprises the memory.

11. A method comprising:

determining, via a processor of a harness, an identity of each sensor of a plurality of sensors arranged within an engine system and coupled to the harness of the engine system based on an identification signal of the respective sensor, wherein the identification signal of the respective sensor corresponds to a property of the respective sensor, wherein exhaust sensors of the plurality of sensors are configured to monitor a flow property of engine exhaust and provide a feedback based on the flow property;

loading a calibration for each sensor of the plurality of sensors from a memory based at least in part on the determined identity of the respective sensor; and

determining, via the processor, a configuration of the plurality of sensors based at least in part on the determined identities of the plurality of sensors.

12. The method of claim 11, comprising enabling a pre-catalyst open-loop control mode and disabling a post-catalyst closed-loop control mode upon determining a pre-catalyst control configuration of the plurality of sensors, wherein the open-loop pre-catalyst control mode is configured to control an oxidant-fuel mixture to an engine of the engine system based at least in part on the feedback from a pre-catalyst composition sensor of the plurality of sensors.

13. The method of claim 11, comprising enabling a post-catalyst closed loop control mode upon determining a post-catalyst control configuration of the plurality of sensors, wherein the closed-loop post-catalyst control mode is configured to control an oxidant-fuel mixture to an engine of the engine system based at least in part on the feedback from a post-catalyst composition sensor of the plurality of sensors.

14. The method of claim 13, wherein the closed-loop post-catalyst control mode is configured to control the oxidant-fuel mixture to the engine of the engine system based at least in part on the feedback from a pre-catalyst sensor of the plurality of sensors.

15. The method of claim 11, comprising displaying a control mode of the engine system on a human machine interface of the engine system, wherein the control mode is enabled by the determined configuration of the plurality of sensors, and the control mode is configured to control an oxidant-fuel mixture to an engine of the engine system based at least in part on the feedback from the configuration of the plurality of sensors.

16. The method of claim 11, wherein the plurality of sensors comprise at least one composition sensor and at least one temperature sensor.

17. The method of claim 11, wherein the property of each sensor comprises a type of the respective sensor, a size of the respective sensor, a manufacturer of the respective sensor, an accuracy of the respective sensor, design conditions of the respective sensor, or any combination thereof.

18. The method of claim 11, wherein the identification signal of the respective sensor of the plurality of sensors comprises a response to a handshake protocol between an engine control module of the engine system and the respective sensor of the plurality of sensors.

19. A system comprising:

a human machine interface comprising a display and operator controls, wherein the display is configured to display information based at least in part on operation of an engine system coupled to the human machine interface, and the operator controls are configured to receive operator input;

an engine control system comprising;

a harness comprising a processor; and

wherein the harness is coupled to a plurality of sensors, wherein the processor is coupled to the human machine interface, wherein the engine control system is configured to determine a configuration of the plurality of sensors coupled to the harness based at least in part on identities of the plurality of sensors, and the identity of each sensor of the plurality of sensors corresponds to a determined property of the respective sensor of the plurality of sensors, wherein the processor is configured to determine the property of each sensor based on an identification signal of the respective sensor, the engine control system is configured to enable and disable the operator controls of the human machine interface based at least in part on the configuration of the plurality of sensors, and the processor is configured to control an exhaust from the engine system based at least in part on the operator input and feedback from the plurality of sensors.

20. The system of claim 19, wherein the engine control system comprises the plurality of sensors comprising a composition sensor, a temperature sensor, or a pressure sensor, or any combination thereof.