HYBRID VEHICLE EXHAUST CONTROL STRATEGY
First Claim
Patent Images
1. A method comprising:
- operating a hybrid vehicle in a first mode during which a combustion engine is off and an electric motor propels the hybrid vehicle;
energizing an electrically heated selective catalytic reduction catalyst (EHSCR) during the first mode; and
operating the vehicle in a second mode after the first mode during which the engine propels the hybrid vehicle.
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Abstract
A hybrid vehicle emission control method may include operating the hybrid vehicle in a first mode during which a combustion engine is off and an electric motor propels the hybrid vehicle. An electrically heated selective catalytic reduction catalyst (EHSCR) may be energized during the first mode. The vehicle may be operated in a second mode after the first mode during which the engine propels the hybrid vehicle.
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Citations
20 Claims
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1. A method comprising:
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operating a hybrid vehicle in a first mode during which a combustion engine is off and an electric motor propels the hybrid vehicle; energizing an electrically heated selective catalytic reduction catalyst (EHSCR) during the first mode; and operating the vehicle in a second mode after the first mode during which the engine propels the hybrid vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A control module comprising:
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a hybrid vehicle mode control module controlling vehicle operation in a first mode during which a combustion engine is off and an electric motor propels the vehicle and in a second mode during which the engine propels the vehicle; and an EHSCR control module in communication with the hybrid vehicle mode control module and an electrically heated selective catalytic reduction catalyst (EHSCR) and energizing the EHSCR during the first mode. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification