Control system and method for a thermal circuit

A control system for a thermal circuit, comprising:

• a valvular device in connection with said thermal circuit, such that said valvular device and at least one hollow radiating body of the thermal circuit are in fluidic communication with each other, said valvular device and said thermal circuit cooperate in the regulation of the passage of a heat transfer fluid through the inside of said at least one hollow radiating body,
• at least one control unit arranged for controlling the opening/closing of said valvular device through corresponding electric command signals,
• at least one thermoelectric element arranged in thermal contact with the heat transfer fluid to generate electricity from the heat of said heat transfer fluid, and electrically connected with said control unit to electrically power supply at least part of said control unit from the generated electricity, wherein said control unit and said valvular device are configured to regulate the circulation of said heat transfer fluid through the inside of said at least one hollow radiating body, by making the valvular device adopt a partially closed position which allows only a sufficient minimum flow of the heat transfer fluid to pass therethrough and through the at least one hollow radiating body, in order to always maintain the sufficient minimum flow of heat transfer fluid for said thermoelectric element to always generate electricity, from which the electric power supply of at least said part of the control unit electrically power supplied by the at least one thermoelectric element is assured at all times.