US 12,107,418 B2
System for the electric power supply of a vehicle
Franziska Eckelmann, Caimersheim (DE); Thomas Glass, Mainburg (DE); Stefan Schoberer, Mindelstetten (DE); and Mario Wildgruber, Rohrbach (DE)
Assigned to AUDI AG, Ingolstadt (DE)
Filed by Audi AG, Ingolstadt (DE)
Filed on Jul. 13, 2022, as Appl. No. 17/864,283.
Claims priority of application No. 102021118120.8 (DE), filed on Jul. 14, 2021.
Prior Publication US 2023/0015170 A1, Jan. 19, 2023
Int. Cl. H02J 1/10 (2006.01); B60L 58/20 (2019.01); H02J 1/08 (2006.01)
CPC H02J 1/106 (2020.01) [B60L 58/20 (2019.02); H02J 1/082 (2020.01); B60L 2210/10 (2013.01); H02J 2310/48 (2020.01)] 7 Claims
OG exemplary drawing
 
1. A system for electric power supply of a vehicle, wherein the vehicle includes a plurality of electricity users, the system comprising:
an energy accumulator;
a direct current/direct current (DC/DC) converter;
a first output line which, in operation, is connected to the electricity users; and
a second output line which, in operation, is connected to the electricity users; and
wherein the energy accumulator includes a plurality of strands, including a first strand and a second strand;
wherein each of the strands has at least one energy accumulator cell;
wherein the DC/DC converter includes a plurality of input modules, including a first input module and a second input module;
wherein each of the strands of the energy accumulator forms one of a plurality of closed circuits with one of the input modules of the DC/DC converter;
wherein the closed circuits are interconnected;
wherein each of the closed circuits is connected to the electricity users;
wherein each of the input modules of the DC/DC converter is connected to the electricity users;
wherein at least one of the electricity users, in operation, charges at least one of the strands;
wherein the first input module is connected to a first input line and a first access line;
wherein the second input module is connected to a second input line and a second access line;
wherein the first input line and the second input line are connected to the first strand and the second strand;
wherein the first access line, in operation, is connected via the first output line to the electricity users;
wherein the second access line, in operation, is connected via the second output line to the electricity users;
wherein the first strand, the second strand, and the DC/DC converter, in operation, provide the electricity users with an electrical voltage having two different nonzero voltage levels, with a first nonzero voltage level or with a second nonzero voltage level; and
wherein the first strand and the DC/DC converter, in operation, provide the electricity users with the electrical voltage having two different nonzero voltage levels, with the first nonzero voltage level or with the second nonzero voltage level during an outage of the second strand.