Abstract: A method is for regulating a pressure of a dielectric liquid circulating within a cooling system of at least one battery cell of an at least in part electrically propelled vehicle. The cooling system includes a circuit in which the dielectric liquid circulates. The battery cell is immersed in the dielectric liquid. The cooling system includes structure for pressurizing the dielectric liquid within the circuit.

Abstract: System (10) for cooling an electric motor (12) of a vehicle with a hybrid motor comprising an electric motorization system (12) and an internal combustion motorization system (11), the internal combustion motorization system (11) comprising at least one fluid circulation circuit, characterized in that the system comprises a heat storage tank (14), in that said tank is connected to the fluid circulation circuit and to the electric motorization system via heat pipes (20).

Abstract: A method for managing a power train of a motor vehicle provided with an engine and an estimator of a temperature at a given point of the engine includes a step of initializing the estimator when the power train is started. The initialization step includes the following steps: defining a stop time of an element of the power train; defining at least one value representative of the ambient air temperature; assessing a thermal parameter of the engine on the basis of the defined stop time and the value representative of the defined ambient air temperature; and initializing the estimator from the assessed thermal parameter.

Abstract: The method for managing a power train of a motor vehicle provided with an engine and an estimator of a temperature at a given point of the engine comprises a step of initializing the estimator when the power train is started. Said initialization step comprises the following steps: defining a stop time of an element of the power train; defining at least one value representative of the ambient air temperature; assessing a thermal parameter of the engine on the basis of the defined stop time and the value representative of the defined ambient air temperature; initializing the estimator from the assessed thermal parameter.

Abstract: System (10) for cooling an electric motor (12) of a vehicle with a hybrid motor comprising an electric motorization system (12) and an internal combustion motorization system (11), the internal combustion motorization system (11) comprising at least one fluid circulation circuit, characterized in that the system comprises a heat storage tank (14), in that said tank is connected to the fluid circulation circuit and to the electric motorization system via heat pipes (20).