US 12,377,730 B2
Motor vehicle with DC voltage converters and method for operating a motor vehicle
Roman Straßer, Gaimersheim (DE)
Assigned to AUDI AG, Ingolstadt (DE)
Filed by AUDI AG, Ingolstadt (DE)
Filed on May 23, 2023, as Appl. No. 18/322,447.
Claims priority of application No. 102022113199.8 (DE), filed on May 25, 2022.
Prior Publication US 2023/0382229 A1, Nov. 30, 2023
Int. Cl. B60L 3/00 (2019.01); B60L 53/22 (2019.01)
CPC B60L 3/003 (2013.01) [B60L 53/22 (2019.02); B60L 2210/10 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A motor vehicle, comprising:
a first voltage network;
a second voltage network,
wherein an operating voltage of the second voltage network is lower than an operating voltage of the first voltage network, and
two Direct Current (DC) voltage converters connecting the second voltage network to the first voltage network,
wherein each of the DC voltage converters includes a hardware regulator that regulates the operating voltage of the second voltage network,
wherein the DC voltage converters are physically separated in the motor vehicle,
wherein the hardware regulator of a first one of the DC voltage converters is connected to the hardware regulator of a second one of the DC voltage converters via a communication connection having at least one communication line,
wherein the hardware regulator of the first one of the DC voltage converters, in operation, sends first regulating information via the communication connection to the hardware regulator of the second one of the DC voltage converters, and
wherein the hardware regulator of the second one of the DC voltage converters, in operation, performs a first regulating operation based on the first regulating information sent by the hardware regulator of the first one of the DC voltage converters.