A motor vehicle multi-voltage battery device includes a first output current terminal and a ground terminal providing a first rated voltage; a second output current terminal and the ground terminal providing a second rated voltage; a first battery cell group, electrically connected to the first output current terminal and to the ground terminal; a second battery cell group, electrically connected to the second output current terminal and to the first output current terminal and switchably connected in series with the first battery cell group; a charging current terminal connecting the multi-voltage battery device to an external current source; a first DC voltage converter electrically connected on the input voltage side to the charging current terminal and on the output voltage side to the first positive pole, and configured to convert an input voltage at the charging current terminal to a first charging voltage for charging the first battery cell group.
MULTI-VOLTAGE BATTERY DEVICE AND ONBOARD ELECTRICAL SYSTEM FOR A MOTOR VEHICLE
2020-10-29
Patent
Electronic Resource
English
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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