SCR aftertreatment system maintenance inducement method
First Claim
1. A method for providing a selective catalytic reduction (SCR) system maintenance incentive, comprising:
- interpreting an SCR aftertreatment system malfunction indication associated with at least one of a DEF tank and an aftertreatment system operationally coupled to an engine;
determining an inducement signal value when the SCR aftertreatment system malfunction indication obtains a threshold value; and
derating the engine in response to the inducement signal value.
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Accused Products
Abstract
Systems and methods are disclosed that relate to an SCR aftertreatment system and incentives/inducements for an operator/user to maintain the SCR aftertreatment in compliance with operating requirements and/or regulations. An engine is operationally coupled to at least one of a DEF tank and an SCR aftertreatment system. An inducement signal value is determined in response to a threshold value being obtained relating to at least one of the DEF tank level indication, a DEF quality indication, and an SCR aftertreatment system malfunction indication. The inducement signal value initiates at least one derate value of the engine to incentivize or induce the operator to have the aftertreatment system maintained and avoid or prevent out-of compliance operation of the SCR aftertreatment system.
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Citations
38 Claims
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1. A method for providing a selective catalytic reduction (SCR) system maintenance incentive, comprising:
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interpreting an SCR aftertreatment system malfunction indication associated with at least one of a DEF tank and an aftertreatment system operationally coupled to an engine; determining an inducement signal value when the SCR aftertreatment system malfunction indication obtains a threshold value; and derating the engine in response to the inducement signal value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A system, comprising:
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an internal combustion engine including an exhaust system for receiving an exhaust gas produced by the internal combustion engine; a selective catalytic reduction (SCR) aftertreatment system connected to the exhaust system for treating nitrous oxide emissions in the exhaust gas; a diesel exhaust fluid (DEF) tank connected to the exhaust system to provide DEF to the SCR aftertreatment system; an SCR aftertreatment system indicator configured to detect an SCR system malfunction; and a controller configured to determine an inducement signal value in response to the at least one of the DEF level indicator, the DEF quality indicator, and the SCR aftertreatment system indicator obtaining a threshold value, the controller further being configured to derate the engine in response to the inducement signal value. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification