A contactor assembly is provided for a battery module of an electric work vehicle comprising a battery management system. The battery module is configured to be charged and discharged via a first circuit. The first circuit comprises the contactor assembly, the contactor assembly comprising a first contactor in series with a second contactor. Each of the first contactor and the second contactor is configured to have a higher resistance to welding for a switching current flowing in a preferred direction than in a nonpreferred direction. The first contactor and the second contactor have opposite preferred directions. In response to an instruction to switch the contactor assembly, the battery management system is configured to determine whether the switching current direction is in the first direction or in the second direction, and to break or complete the first circuit with the contactor having a preferred direction in the switching current direction.
CONTACTOR ASSEMBLY FOR BATTERY PACK OF ELECTRIC WORK VEHICLE
15.06.2023
Patent
Elektronische Ressource
Englisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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