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.
DISPOSITIF DE REFROIDISSEMENT ET DE LUBRIFICATION D'UN GROUPE MOTOPROPULSEUR ÉLECTRIQUE D'UN VÉHICULE AUTOMOBILE ÉLECTRIQUE OU HYBRIDE
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
2023-05-24
Patent
Electronic Resource
French
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 |
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