Method for adjusting an operational performance of an electric machine, data processing device, computer program, computer-readable storage medium, and electric drive system

Patent metadata

Field	Value
Publication number	US-12381503-B2
Application number	US-202318330646-A
Country	US
Kind code	B2
Filing date	Jun 7, 2023
Priority date	Jun 10, 2022
Publication date	Aug 5, 2025
Grant date	Aug 5, 2025

Abstract

Adjustment of operational performance of an electric machine (e.g., using a computerized tool) is enabled. For example, a non-transitory computer-readable medium can comprise executable instructions that, when executed by a processor, facilitate performance of operations, comprising: deactivating a first sub-set of winding sectors, wherein the first sub-set of the winding sectors comprises at least one winding sector, and triggering an AC drive signal for a second sub-set of the winding sectors such that a rotor is rotated using the winding sectors of the second sub-set, wherein an electric machine comprises a stator and the rotor, wherein the stator comprises a set of N phase windings, wherein each N phase winding, of the set of N phase windings, forms p poles around a circumference of the stator, and wherein each p pole, of the p poles, is formed by the at least one winding sector.

First claim

What is claimed is:

1. A method for adjusting operational performance of an electric machine, wherein the electric machine comprises a stator and a rotor, wherein the stator comprises a set of phase windings, wherein each phase winding of the set of phase windings forms a same defined quantity of poles around a circumference of the stator, and wherein each pole of the poles of the phase winding is formed by at least one winding sector of a group of winding sectors of the phase winding, the method comprising:
rotating, by a system comprising a processor, the rotor by:
selectively deactivating each winding sector of a first sub-set of the winding sectors of the set of phase windings, wherein the first sub-set of winding sectors comprises at least one winding sector of the set of phase windings; and
selectively activating, using AC drive signals, each winding sector of a second sub-set of the winding sectors of the set of phase windings, wherein the second sub-set of winding sectors comprises more than one winding sector of the set of phase windings.

2. The method of claim 1 , wherein the first sub-set of winding sectors comprises more than one winding sector, and the winding sectors of the first sub-set of the winding sectors are distributed over the circumference of the stator.

3. The method of claim 1 , wherein the first sub-set of the winding sectors comprises a pre-defined first sub-set of the winding sectors.

4. The method of claim 3 , further comprising:
receiving, by the system, performance mode information specifying the pre-defined first sub-set of phase windings.

5. The method of claim 1 , further comprising:
triggering, by the system, an operational mode of a cooling system associated with the electric machine and associated with a use of the winding sectors of the second sub-set.

6. The method of claim 1 , wherein selectively deactivating each winding sector of the first sub-set of the winding sectors comprises deactivating at least all winding sectors of one of the poles of at least one phase winding of the set of phase windings.

7. The method of claim 1 , wherein selectively deactivating each winding sector of the first sub-set of the winding sectors comprises deactivating all winding sectors of one phase winding of the set of phase windings.

8. The method of claim 1 , wherein at least one p pole is formed by at least two winding sectors and selectively deactivating the first sub-set of the winding sectors comprises deactivating a portion of the at least two winding sectors.

9. A non-transitory computer-readable medium, comprising executable instructions that, when executed by a processor of an electric machine comprising a stator and a rotor, wherein the stator comprises a set of phase windings, wherein each phase winding of the set of phase windings forms a same defined quantity of poles around a circumference of the stator, and wherein each pole of the poles is formed by at least one winding sector of a group of winding sectors of the phase winding, facilitate performance of operations, comprising:
rotating the rotor by:
selectively deactivating each winding sector of a first sub-set of the winding sectors of the set of phase windings, wherein the first sub-set of the winding sectors comprises at least one winding sector of the set of phase windings; and
selectively activating, using AC drive signals, each winding sector of a second sub-set of the winding sectors of the set of phase windings, wherein the second sub-set of winding sectors comprises more than one winding sector of the set of phase windings.

10. The non-transitory computer-readable medium of claim 9 , wherein the first sub-set of winding sectors comprises more than one winding sector, and the winding sectors of the first sub-set of the winding sectors are distributed over the circumference of the stator.

11. The non-transitory computer-readable medium of claim 9 , wherein the first sub-set of the winding sectors comprises a pre-defined first sub-set of the winding sectors.

12. The non-transitory computer-readable medium of claim 11 , wherein the operations further comprise:
receiving a performance mode information specifying the pre-defined first sub-set of phase windings.

13. The non-transitory computer-readable medium of claim 9 , wherein the operations further comprise:
triggering an operational mode of a cooling system associated with the electric machine and associated with a use of the winding sectors of the second sub-set.

14. The non-transitory computer-readable medium of claim 9 , wherein selectively deactivating each winding sector of the first sub-set of the winding sectors comprises deactivating at least all winding sectors of at least one of the poles of one phase winding of the set of phase windings.

15. The non-transitory computer-readable medium of claim 9 , wherein selectively deactivating each winding sector of the first sub-set of the winding sectors comprises deactivating at least all winding sectors of one phase winding of the set of phase windings.

16. The non-transitory computer-readable medium of claim 9 , wherein at least one pole is formed by at least two winding sectors and selectively deactivating the first sub-set of the winding sectors comprises deactivating a portion of the at least two winding sectors.

17. An electric machine comprising:
a rotor;
a stator, wherein the stator comprises a set of phase windings, wherein each phase winding of the set of phase windings forms a same defined quantity of poles around a circumference of the stator, and wherein each pole of the poles of the phase winding is formed by at least one winding sector of a group of winding sectors of the phase winding;
a memory configured to store computer executable instruction; and
a processor configured to execute at least one of the computer executable instructions that:
rotates the rotor by:
selectively deactivating each winding sector of a first sub-set of the winding sectors of the set of phase windings, wherein the first sub-set of winding sectors comprises at least one winding sector of the set of phase windings; and
selectively activating, using AC drive signals, each winding sector of a second sub-set of the winding sectors of the set of phase windings, wherein the second sub-set of winding sectors comprises more than one winding sector of the set of phase windings.

18. The electric machine of claim 17 , wherein the first sub-set of winding sectors comprises more than one winding sector, and the winding sectors of the first sub-set of the winding sectors are distributed over the circumference of the stator.

19. The electric drive system of claim 17 , wherein each winding sector of the stator comprises a concentrated winding sector.

20. The electric drive system of claim 17 , wherein the rotor comprises a squirrel cage rotor.

Assignees

• Volvo Car Corp

Inventors

• Orbay Raik
• Ropel Andreas

Classifications

• H02P25/24

  Variable impedance in stator or rotor circuit · CPC title

• H02P2207/01

  Asynchronous machines · CPC title

• H02P25/20 Primary

  for pole-changing · CPC title

• H02P25/22 Primary

  Multiple windings; Windings for more than three phases · CPC title