METHOD FOR OPERATING A COOLING SYSTEM FOR A HYBRID ELECTRIC VEHICLE COMPRISING A LIQUID COOLANT TRANSFER CIRCUIT

A method for operating a cooling system comprises at least the following steps carried out when a vehicle is started: - a first step (E1) which consists in checking whether the temperature of the liquid coolant in a low-temperature cooling circuit is lower than a working temperature of a high-voltag...

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Bibliographische Detailangaben
Hauptverfasser:	BEISBARDT, Olivier, ANDRES, Emmanuelle
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES BASIC ELECTRIC ELEMENTS BLASTING COOLING OF INTERNAL-COMBUSTION ENGINES COOLING OF MACHINES OR ENGINES IN GENERAL ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRICITY ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL ENGINE PLANTS IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES MECHANICAL ENGINEERING PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY STEAM ENGINES TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A method for operating a cooling system comprises at least the following steps carried out when a vehicle is started: - a first step (E1) which consists in checking whether the temperature of the liquid coolant in a low-temperature cooling circuit is lower than a working temperature of a high-voltage battery of an electric motor; - when the temperature of the liquid coolant in the low-temperature cooling circuit is lower than the working temperature of the battery, a second step (E2) which consists in starting a heat engine; a third step (E3) consisting in opening control means of a transfer circuit in order to cause liquid coolant to flow between a high-temperature cooling circuit and the low-temperature cooling circuit, thus causing the temperature of the liquid coolant in the low-temperature cooling circuit to rise faster in order to heat the battery until it reaches at least the working temperature.