US 12,409,721 B2
Motor vehicle
Stefan Oechslen, Stuttgart (DE); and Simon Kuebler, Untergruppenbach Unterheinriet (DE)
Assigned to DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT, Stuttgart (DE)
Filed by Dr. Ing. h.c. F. Porsche Aktiengesellschaft, Stuttgart (DE)
Filed on Feb. 8, 2023, as Appl. No. 18/165,945.
Claims priority of application No. 10 2022 103 357.0 (DE), filed on Feb. 14, 2022.
Prior Publication US 2023/0256810 A1, Aug. 17, 2023
Int. Cl. H02K 9/19 (2006.01); B60K 11/02 (2006.01); F16H 57/04 (2010.01); H02K 7/116 (2006.01); H02K 9/197 (2006.01); B60K 1/00 (2006.01)
CPC B60K 11/02 (2013.01) [B60K 2001/006 (2013.01); B60Y 2200/91 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A motor vehicle comprising:
a drive unit comprising an electric machine, wherein the electric machine is a directly cooled electric machine;
a transmission;
a first cooling loop for cooling assemblies of the directly cooled electric machine using a first dielectric coolant which flows directly around respective assemblies of the electric machine;
a second cooling loop for cooling the transmission using a second coolant designed as a transmission oil; and
a third cooling loop using a third coolant,
wherein the first cooling loop and the third cooling loop are coupled via a first heat exchanger, and the second cooling loop and the third cooling loop are coupled via a second heat exchanger.