Temperature control systems with thermoelectric devices

A method for controlling temperature of an occupant compartment of a vehicle during a stop of an internal combustion engine of the vehicle, the method comprising:

• directing an airflow through a comfort air channel;
• directing a coolant through an engine coolant circuit, the engine coolant circuit including an engine block coolant conduit in thermal communication with the internal combustion engine of the vehicle;
• directing the airflow through a heater core disposed in the comfort air channel and in thermal communication with the engine block coolant conduit;
• directing the airflow through a supplemental heat exchanger in thermal communication with a thermoelectric device, and wherein the thermoelectric device has a main surface and a waste surface, the main surface in thermal communication with the supplemental heat exchanger, the waste surface connected to a waste heat exchanger, wherein the waste heat exchanger is connected to a fluid circuit containing a liquid phase working fluid, and wherein the liquid phase working fluid is in fluid communication with the engine block coolant conduit or a heat sink;
• and
• restricting, in a stop heating mode, electric current to the thermoelectric device, wherein the internal combustion engine is configured to heat the airflow while the internal combustion engine is stopped.

A method for controlling temperature of an occupant compartment of a vehicle during a stop of an internal combustion engine of the vehicle, the method comprising:

• directing an airflow through a comfort air channel;
• directing a coolant through an engine coolant circuit, the engine coolant circuit including an engine block coolant conduit in thermal communication with the internal combustion engine of the vehicle;
• directing the airflow through a heater core disposed in the comfort air channel and in thermal communication with the engine block coolant conduit;
• directing the airflow through a supplemental heat exchanger in thermal communication with a thermoelectric device, and wherein the thermoelectric device has a main surface and a waste surface, the main surface in thermal communication with the supplemental heat exchanger, the waste surface connected to a waste heat exchanger, wherein the waste heat exchanger is connected to a fluid circuit containing a liquid phase working fluid, and wherein the liquid phase working fluid is in fluid communication with the engine block coolant conduit or a heat sink;
• and
• supplying, in a stop demisting mode, electric current to the thermoelectric device in a second polarity for the thermoelectric device to cool the airflow by transferring thermal energy from the main surface to the waste surface and the internal combustion engine is configured to heat the airflow while the internal combustion engine is able to heat the airflow to a specified comfortable temperature.