Method of treating emissions of a hybrid vehicle with a hydrocarbon absorber and a catalyst bypass system
Patent
·
OSTI ID:1117706
A method of treating emissions from an internal combustion engine of a hybrid vehicle includes directing a flow of air created by the internal combustion engine when the internal combustion engine is spinning but not being fueled through a hydrocarbon absorber to collect hydrocarbons within the flow of air. When the hydrocarbon absorber is full and unable to collect additional hydrocarbons, the flow of air is directed through an electrically heated catalyst to treat the flow of air and remove the hydrocarbons. When the hydrocarbon absorber is not full and able to collect additional hydrocarbons, the flow of air is directed through a bypass path that bypasses the electrically heated catalyst to conserve the thermal energy stored within the electrically heated catalyst.
- Research Organization:
- GM Global Technology Operations LLC (Detroit, MI)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FC26-08NT04386
- Assignee:
- GM Global Technology Operations LLC (Detroit, MI)
- Patent Number(s):
- 8,627,654
- Application Number:
- 13/196,263
- OSTI ID:
- 1117706
- Country of Publication:
- United States
- Language:
- English
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