Apparatus, methods and systems for electrically heated particulate filter and SCR catalyst in vehicles

A method of operating a vehicle system of a vehicle, the method comprising:

• detecting, by a controller of the vehicle system when an engine of the vehicle system is turned off in an electric vehicle (EV) mode in which only an electric machine provides power to drive the vehicle, a predicted future increase in a vehicle power demand within a lookahead window;
• detecting, by the controller upon detecting the predicted future increase in the vehicle power demand, a temperature of a particulate filter fluidly coupled with the engine and located downstream of the engine;
• in response to the detected temperature being below a lower temperature threshold, activating, by the controller, an electrical heating device that is in direct contact with the particulate filter using on-board energy sources to increase the temperature of the particulate filter, the on-board energy sources including an energy storage device and the electric machine;
• and
• turning on, by the controller, the engine in response to the detected temperature being at or above the lower temperature threshold to facilitate the predicted future increase in the vehicle power demand.

A vehicle system of a vehicle, the vehicle system comprising:

• an engine;
• on-board energy sources providing electrical energy, the on-board energy sources including an energy storage device and an electric machine;
• a particulate filter fluidly coupled with the engine;
• an electrical heating device that is in direct contact with the particulate filter;
• and
• a controller operatively coupled with the engine and the electrical heating device, the controller configured to:
• predict, when the engine is turned off in an electric vehicle (EV) mode in which only the electric machine provides power to drive the vehicle, a future increase in a vehicle speed within a lookahead window;
• detect a temperature of the particulate filter upon predicting the future increase in the vehicle speed;
• activate the electrical heating device using the on-board energy sources in response to the detected temperature being below a lower temperature threshold;
• and
• turn on the engine in response to the detected temperature being at or above the lower temperature threshold to increase the vehicle speed within the lookahead window.