Apparatus, system, and method for detecting temperature threshold events in an aftertreatment device
First Claim
1. An apparatus for detecting temperature threshold events in an aftertreatment device, the apparatus comprising:
- at least one temperature responder disposed within a region of interest of the aftertreatment device, the temperature responder comprising a structure formed of a material configured to melt at a threshold temperature; and
an observation module configured to detect the melting of the temperature responder;
wherein the region of interest is defined within an emissions-reducing core of the aftertreatment device.
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Accused Products
Abstract
An apparatus, system, and method are disclosed for detecting temperature threshold events in an aftertreatment device. The system may include an aftertreatment device configured to treat an exhaust gas of an internal combustion engine and a temperature responder disposed within a region of interest of the aftertreatment device. The temperature responder is configured to melt at a threshold temperature. The system may further include two access points electrically coupled to the temperature responder and an observation module configured to measure an electrical resistance value across the two access points. The observation module detects the melting of the temperature responder based on the electrical resistance value measured across the access points. In alternate embodiments the observation module is included within an engine control module (ECM) or a service tool.
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Citations
25 Claims
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1. An apparatus for detecting temperature threshold events in an aftertreatment device, the apparatus comprising:
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at least one temperature responder disposed within a region of interest of the aftertreatment device, the temperature responder comprising a structure formed of a material configured to melt at a threshold temperature; and an observation module configured to detect the melting of the temperature responder; wherein the region of interest is defined within an emissions-reducing core of the aftertreatment device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method for detecting temperature threshold events in an aftertreatment device, the method comprising:
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inserting a temperature responder into a region of interest in the aftertreatment device, the temperature responder comprising a structure formed of a material configured to melt at a threshold temperature, wherein the region of interest is defined within an emissions-reducing core of the aftertreatment device; check the temperature responder for melting after a period of operation of the aftertreatment device; and determine whether the region of interest of the aftertreatment device has exceeded the threshold temperature based on the melting of the temperature responder. - View Dependent Claims (20, 21)
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22. A system for detecting temperature threshold events in an aftertreatment device, the system comprising:
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the aftertreatment device configured to treat an exhaust gas of an internal combustion engine; a temperature responder disposed within a region of interest of the aftertreatment device, the temperature responder comprising a structure formed of a material configured to melt at a threshold temperature, wherein the region of interest is defined within an emissions-reducing core of the aftertreatment device; two access points, wherein the temperature responder is configured to electrically couple the two access points; and an observation module configured to measure an electrical resistance value across the two access points, and detect the melting of the temperature responder based on the electrical resistance value across the two access points. - View Dependent Claims (23, 24, 25)
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Specification