US 11,850,934 B2
Motor vehicle and method for operation of a cooling device
Uwe Feldmann, Nassenfels (DE); Rüdiger Fischer, Gerolfing (DE); and Arnold Grochla, Neuburg (DE)
Assigned to Audi AG, Ingolstadt (DE)
Filed by AUDI AG, Ingolstadt (DE)
Filed on Nov. 1, 2021, as Appl. No. 17/516,459.
Claims priority of application No. 102020128728.3 (DE), filed on Nov. 2, 2020.
Prior Publication US 2022/0134866 A1, May 5, 2022
Int. Cl. B60K 11/00 (2006.01); B60K 11/02 (2006.01); B60K 1/00 (2006.01); B60L 58/26 (2019.01); B60K 6/24 (2007.10); B60K 6/26 (2007.10); B60K 6/28 (2007.10); H02K 9/19 (2006.01); H05K 7/20 (2006.01); H01M 10/613 (2014.01); H01M 10/625 (2014.01); H01M 10/66 (2014.01); B60L 50/60 (2019.01); H02M 7/537 (2006.01)
CPC B60K 11/02 (2013.01) [B60K 1/00 (2013.01); B60K 6/24 (2013.01); B60K 6/26 (2013.01); B60K 6/28 (2013.01); B60L 50/60 (2019.02); B60L 58/26 (2019.02); H01M 10/613 (2015.04); H01M 10/625 (2015.04); H01M 10/66 (2015.04); H02K 9/19 (2013.01); H05K 7/20927 (2013.01); B60K 2001/006 (2013.01); B60Y 2200/92 (2013.01); B60Y 2306/05 (2013.01); H01M 2220/20 (2013.01); H02M 7/537 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A motor vehicle, comprising:
a drive train with an electric motor;
a traction battery and a power electronics device comprising at least one pulse inverter associated with the electric motor; and
a cooling device for cooling the electric motor, the power electronics device and the traction battery;
wherein the electric motor is cooled in a first cooling circuit with coolant of a first maximum temperature in a first supply flow; and
wherein the power electronics device is cooled in a second cooling circuit, which is separate from the first cooling circuit, using coolant of a second maximum temperature, in a second supply flow, which is lower than the first maximum temperature.