US 12,485,799 B2
Cooling arrangement, motor vehicle battery, and method for operating cooling units
Eduard Main, Buxheim (DE)
Assigned to AUDI AG, Ingolstadt (DE)
Filed by AUDI AG, Ingolstadt (DE)
Filed on Sep. 28, 2022, as Appl. No. 17/954,460.
Claims priority of application No. 102021126471.5 (DE), filed on Oct. 13, 2021.
Prior Publication US 2023/0112971 A1, Apr. 13, 2023
Int. Cl. H01M 10/48 (2006.01); B60L 58/26 (2019.01); H01M 10/613 (2014.01); H01M 10/625 (2014.01); H01M 10/63 (2014.01); H01M 10/6568 (2014.01); H01M 50/209 (2021.01)
CPC B60L 58/26 (2019.02) [H01M 10/482 (2013.01); H01M 10/486 (2013.01); H01M 10/613 (2015.04); H01M 10/625 (2015.04); H01M 10/63 (2015.04); H01M 10/6568 (2015.04); H01M 50/209 (2021.01); H01M 2220/20 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A cooling arrangement for cooling a cell arrangement having multiple cell units of a motor vehicle battery, comprising:
multiple cooling units;
wherein a respective one of the cooling units is associated with one of the cell units; and
wherein the cooling arrangement has a control device adapted to separately control a cooling capacity for a respective one of the cooling units;
wherein the control device is configured to control the cooling units differently in a specific first cooling mode than in a specific second cooling mode which is different from the first cooling mode, wherein the cooling arrangement is set up in such a way that in the event of a fault case affecting a first cell unit of the multiple cell units, a switch is performed from the first cooling mode to the second cooling mode;
wherein the control device is configured to switch from the first cooling mode to the second cooling mode in the event of a detected fault case affecting a first cell unit of the multiple cell units, wherein the cooling arrangement has a detection device configured to detect the fault case;
wherein the first cell unit is associated with a first cooling unit of the multiple cooling units, and second cell units of the multiple cell units which are different from the first cell unit are each associated with a second cooling unit of the multiple cooling units which is different from the first cooling unit, wherein the control device is set up in such a way that at least one of the second cooling units is deactivated in the second cooling mode; and
wherein the deactivated cooling units are deactivated in an order such that those which are spatially farthest from the first cooling unit associated with a defective cell module are deactivated first.