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US 11,821,378 B2Granted
Method and system for deicing an engine
AssigneeFord Global Technologies, LLC
InventorAed Dudar
Life of this patent
Estimating the term…
Abstract
Methods and systems for deicing an engine air intake filter and an engine throttle are described. The methods and systems may include activating an evaporative emissions system heater and a pump to de-ice the engine air intake filter and the engine throttle. The deicing may be performed when an engine of a vehicle is not operating.
Claims20
A vehicle system, comprising:
- an engine including an intake air filter;
- an evaporative emissions system heater;
- an evaporative emissions system bi-directional pump;
- and
- a controller including executable instructions stored in non-transitory memory that cause the controller to activate the evaporative emissions system heater and the evaporative emissions system bi-directional pump in response to an indication of icing of the intake air filter, and additional executable instructions to fully open the throttle in response to the indication of icing of the intake air filter.
2 more elements
A method for operating an engine, comprising:
- activating an evaporative emissions system heater and activating an evaporative emissions system pump via a controller in response to an indication of air filter icing;
- and
- fully closing a fuel tank vent valve in response to the indication of air filter icing.
A method for operating an engine, comprising:
- activating an evaporative emissions system heater and activating an evaporative emissions system pump via a controller in response to an indication of throttle icing;
- and
- fully closing at least one intake valve of the engine while the engine is off in response to the indication of throttle icing.
Dependencies are inferred from the claim text.