US 12,466,410 B2
Electric machine with a variable stator geometry configured for adjustable power loss
Johan Lindberg, Gothenburg (SE)
Assigned to VOLVO TRUCK CORPORATION, Gothenburg (SE)
Appl. No. 18/559,361
Filed by Volvo Truck Corporation, Gothenburg (SE)
PCT Filed May 12, 2021, PCT No. PCT/EP2021/062624
§ 371(c)(1), (2) Date Nov. 7, 2023,
PCT Pub. No. WO2022/237977, PCT Pub. Date Nov. 17, 2022.
Prior Publication US 2024/0227810 A1, Jul. 11, 2024
Int. Cl. B60W 30/18 (2012.01); B60W 10/08 (2006.01); B60W 30/188 (2012.01); H02K 1/02 (2006.01); H02K 1/12 (2006.01); H02K 11/00 (2016.01)
CPC B60W 30/18127 (2013.01) [B60W 10/08 (2013.01); B60W 30/188 (2013.01); H02K 1/02 (2013.01); H02K 1/12 (2013.01); H02K 11/0094 (2013.01); B60W 2300/125 (2013.01); B60W 2556/50 (2020.02); B60W 2900/00 (2013.01); H02K 2213/09 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An electric machine for a heavy-duty vehicle, the electric machine comprising a stator and a rotor separated by an air gap,
wherein the stator comprises a stator reconfiguration device arranged to modify a magnetic property of the stator, wherein the stator reconfiguration device comprises first and second sections formed in different materials (M1, M2), wherein the different materials have different magnetic permeability properties, such that an orientation of the stator reconfiguration device relative to the stator influences the magnetic property of the stator,
wherein the stator is arranged to be mechanically reconfigurable by the stator reconfiguration device to allow control of magnetic flux in the air gap,
wherein the stator reconfiguration device comprises one or more conduits for passing a cooling medium through the stator reconfiguration device.