Systems and methods for heating an aftertreatment system
OwnerGary C. Salemmeinventor
Life of this patent
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Abstract
A method for warming an aftertreatment system of an engine system while an engine of the engine system is not running comprising starting at least one of an electric compressor and an electric heater using stored electrical energy and passing air through the engine system to at least a portion of the aftertreatment system when the engine of the engine system is not running.
Claims20
A method for warming an aftertreatment system of an engine system while an engine of the engine system is not running, the engine system including at least one of an electric compressor and an electric heater, the method comprising:
- starting the at least one of the electric compressor and the electric heater using stored electrical energy;
- and
- passing air to at least a portion of the aftertreatment system through an engine bypass channel when the engine is not running.
An engine system comprising:
- an engine having an intake and an exhaust, and
- an aftertreatment system having at least one of:
- a diesel oxidation catalyst, a diesel particulate filter, and a selective catalytic reduction system;
- at least one of an electric compressor and an electric heater;
- and
- an engine control module for warming the aftertreatment system while the engine system is not running, the engine control module being configured to:
- start the at least one of the electric compressor and the electric heater using stored electrical energy;
- and
- pass air to at least a portion of the aftertreatment system through an engine bypass channel when the engine is not running.
An engine control module (ECM for warming an aftertreatment system while an operatively connected engine system is not running, the ECM being configured to:
- start the at least one of an electric compressor and an electric heater using stored electrical energy;
- and
- pass air to at least a portion of the aftertreatment system through an engine bypass channel when the engine is not running.
Dependencies are inferred from the claim text.