ENERGY RECOVERY DEVICE WITH RANKINE CYCLE HAVING A CONTROLLED COLD SOURCE AND VEHICLE PROVIDED WITH SUCH A DEVICE, CORRESPONDING METHOD FOR ENERGY RECOVERY

Energy recovery device for a motor vehicle, comprising a cold source formed by a cooling fluid circuit (10), a cooling fluid flow rate regulation member (11) in the cooling fluid circuit, and a control unit (12) arranged to control the cooling fluid flow rate as a function of the working fluid temperature.