A phase-change material is used as part of the thermal management system to assist in maintaining a thermal load, such as a battery pack, within a selected temperature range, thereby reducing the consumption of battery power. The phase-change material may be conditioned to an initial state when the vehicle is on-plug and may be used to heat or cool the battery pack directly or indirectly, thereby reducing the use of an electric battery heater. The phase-change material may be used to heat coolant that flows to the thermal load. In another embodiment the phase-change material may be directly within the battery pack in contact with the cells. The phase-change material may be conditioned via the battery circuit heater when the vehicle is on-plug. The phase-change material may also be recharged during vehicle use off-plug using waste heat from the motor circuit thermal load.
Thermal management system using a phase-change material for vehicle with electric traction motor
2015-08-11
Patent
Elektronische Ressource
Englisch
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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