Patent ID: 11945321
Assignee: VOLKSWAGEN AKTIENGESELLSCHAFT
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC B  H  Y | IPC B  F  H

Claim 8:
9. A power supply system for a vehicle, comprising:
a high-voltage battery;
a low-voltage on-board electrical system; and
a control unit, wherein the control unit is configured to
activate an emergency drive mode condition of the vehicle via the low-voltage on-board electrical system, if (i) a defective high-voltage battery, or (ii) a switched-off high-voltage battery is detected,
receive electrical power from a separate external unit via a low-voltage interface to the low-voltage on-board electrical system of the vehicle during the emergency drive mode condition,
and
transmit the further electrical power from the low-voltage on-board electrical system to the high-voltage battery to facilitate start-up of the vehicle.