A device cools a power train of a vehicle including an electric machine with a wound rotor coupled to a speed reducer. The device includes: an oil cooling circuit for cooling the electric machine, the circuit include a heat exchanger connected to an oil tank and a water circuit that connects members of the power train through the radiator of the vehicle; a temperature adjuster of the oil flow supplied at the outlet of the exchanger to a distribution circuit projecting the oil to elements for heating the electric machine; a circuit for lubricating the reducer, the circuit including a sump, the bottom of the sump forming a reserve of oil for lubricating the reducer; and a bypass channel at the outlet of the exchanger, for conveying a portion of the temperature-adjusted oil in contact with the bottom of the sump in order to cool the oil reserve.


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    Title :

    DISPOSITIF DE REFROIDISSEMENT ET DE LUBRIFICATION D'UN GROUPE MOTOPROPULSEUR ÉLECTRIQUE D'UN VÉHICULE AUTOMOBILE ÉLECTRIQUE OU HYBRIDE


    Additional title:

    COOLING AND LUBRICATION DEVICE OF AN ELECTRIC PROPULSION ASSEMBLY OF AN ELECTRIC OR HYBRID MOTOR VEHICLE
    KÜHLUNGS- UND SCHMIERUNGSEINRICHTUNG EINER ELEKTRISCHEN ANTRIEBSBAUGRUPPE EINES ELEKTRO- ODER HYBRID-FAHRZEUGS


    Contributors:

    Publication date :

    2023-05-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    French


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES