Method for controlling a compressor of a thermal storage heat pump system

A thermal storage heat pump system of a vehicle having a passenger compartment, the system comprising:

• a first coolant circuit configured to circulate a first coolant;
• a second coolant circuit configured to circulate a second coolant;
• a refrigeration circuit configured to circulate a refrigerant, the refrigeration circuit being in thermal communication with the first coolant circuit and the second coolant circuit via a first heat exchanger and a second heat exchanger, respectively;
• a compressor located in the refrigeration circuit, the compressor being configured to compress the refrigerant, and having a compressor motor and a motor controller configured to selectively operate the compressor motor in one of an unmodified state and a modified state;
• and
• at least one system controller configured to selectively operate the thermal storage heat pump system in one of a heating mode and a cooling mode based on a measurement of at least one parameter;
• wherein the compressor motor is operated in the unmodified state when the thermal storage heat pump system is in the cooling mode, and in the modified state when the thermal storage heat pump system is in the heating mode.

A method for controlling a compressor of a thermal storage heat pump system having at least one system controller and a refrigeration circuit in which the compressor is located, the compressor having a compressor motor and a motor controller, the method comprising:

• measuring, by a temperature sensor, ambient air temperature to obtain a temperature measurement;
• transmitting, by the temperature sensor, the temperature measurement to the at least one system controller;
• determining, by the at least one system controller, an operating mode of the thermal storage heat pump system based on the temperature measurement, the operating mode being one of a heating mode and a cooling mode;
• and
• operating, by the motor controller, the compressor motor in an unmodified state when the thermal storage heat pump system is in the cooling mode, and in the modified state when the thermal storage heat pump system is in the heating mode.