Exhaust methane control systems and methods
AssigneeGM Global Technology Operations LLC
InventorsEugene V. Gonze, David B. Brown
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Abstract
A system for a vehicle, includes a conversion temperature determination module and a heating control module. The conversion temperature determination module generates a methane conversion temperature corresponding to a predetermined methane conversion efficiency. The heating control module selectively applies power to a substrate of an electrically heated catalyst (EHC) based on a temperature of the EHC and the methane conversion temperature. The EHC includes at least one catalyst that reacts with methane in exhaust output from an engine.
Claims20
A system for a vehicle, comprising:
- a conversion temperature determination module that generates a methane conversion temperature corresponding to a predetermined methane conversion efficiency;
- and
- a heating control module that selectively applies power to a substrate of an electrically heated catalyst (EHC) based on a temperature of the EHC and the methane conversion temperature,
- wherein the EHC includes at least one catalyst that reacts with methane in exhaust output from an engine.
A method for a vehicle, comprising:
- generating a methane conversion temperature corresponding to a predetermined methane conversion efficiency;
- and
- selectively applying power to a substrate of an electrically heated catalyst (EHC) based on a temperature of the EHC and the methane conversion temperature,
- wherein the EHC includes at least one catalyst that reacts with methane in exhaust output from an engine.
Dependencies are inferred from the claim text.