Systems and methods for controlling a hybrid system based on temperature zone and power demand

A system for controlling a hybrid system including an electric motor, a combustion engine, an aftertreatment system, and an electric heater coupled to the aftertreatment system, the system comprising:

• a temperature zone determining module configured to determine a system temperature zone of the aftertreatment system as being in:
• a first temperature zone below a first temperature threshold,
• a second temperature zone from the first temperature threshold to a second temperature threshold, or
• a third temperature zone above the second temperature threshold;
• a power demand determining module configured to determine a power demand corresponding to the operation of the hybrid system as being in:
• a first power demand zone if the power demand is below a power threshold, or
• a second power demand zone if the power demand is equal to or greater than the power threshold;
• and
• a control strategy determining module configured to determine a control strategy based at least in part on the determined system temperature zone and the determined power demand,
• wherein the control strategy includes a control command of setting the hybrid system to compressor mode when:
• the determined system temperature zone is in the first temperature zone and the determined power demand is zero, or
• the determined system temperature zone is in the first temperature zone and the determined power demand is in the first power demand zone, and
• wherein the control strategy further includes one control command selected from:
• setting the hybrid system to power-split mode,
• setting the hybrid system to motor-operation mode, and
• setting the hybrid system to engine-operation mode.

A non-transitory computer-readable medium with instructions stored thereon, that when executed by a processor, cause the processor to perform:

• determining a system temperature zone of the aftertreatment system as being in:
• a first temperature zone below a first temperature threshold,
• a second temperature zone from the first temperature threshold to a second temperature threshold, or
• a third temperature zone above the second temperature threshold;
• determining a power demand corresponding to the operation of the hybrid system as being in:
• a first power demand zone if the power demand is below a power threshold, or
• a second power demand zone if the power demand is equal to or greater than the power threshold;
• and
• determining a control strategy based at least in part on the determined system temperature zone and the determined power demand,
• wherein the control strategy includes a control command of setting the hybrid system to compressor mode when:
• the determined system temperature zone is in the first temperature zone and the determined power demand is zero, or
• the determined system temperature zone is in the first temperature zone and the determined power demand is in the first power demand zone, and
• wherein the control strategy further includes one control command selected from:
• setting the hybrid system to power-split mode,
• setting the hybrid system to motor-operation mode, and
• setting the hybrid system to engine-operation mode.